CN107954006B - Rigid belt releasing device - Google Patents
Rigid belt releasing device Download PDFInfo
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- CN107954006B CN107954006B CN201711181989.0A CN201711181989A CN107954006B CN 107954006 B CN107954006 B CN 107954006B CN 201711181989 A CN201711181989 A CN 201711181989A CN 107954006 B CN107954006 B CN 107954006B
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- unlocking
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- 230000001050 lubricating effect Effects 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 24
- 230000033001 locomotion Effects 0.000 abstract description 17
- 238000009434 installation Methods 0.000 abstract description 11
- 239000002360 explosive Substances 0.000 description 22
- 230000009471 action Effects 0.000 description 15
- 230000006870 function Effects 0.000 description 8
- 230000000977 initiatory effect Effects 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000013268 sustained release Methods 0.000 description 3
- 239000012730 sustained-release form Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/64—Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
- B64G1/645—Separators
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a rigid wrapping tape releasing device, which comprises: the device comprises a rigid wrapping belt, a plurality of V-shaped blocks, a plurality of fixing clamps, an unlocking element, an upper end frame and a lower end frame; the rigid wrapping belt is in an open ring shape, and two ends of the rigid wrapping belt are connected through the unlocking element; the plurality of V-shaped blocks are connected with the inner wall of the rigid wrapping belt through a plurality of fixing clamps; a plurality of V-shaped blocks are distributed along the circumferential direction of the rigid wrapping belt; the lower end face of the upper end frame is connected with the upper end face of the lower end frame through a plurality of V-shaped blocks. The present invention has higher load carrying capacity, more accurate and smaller separation motion envelope and smaller axial installation space.
Description
Technical Field
The invention belongs to the technical field of carrier rocket payload separation structures, and particularly relates to a rigid wrapping tape releasing device.
Background
The connection and separation between the payload and the carrier rocket are realized by a separating device, and the currently common payload separating device mainly comprises a nut separating device and a belt separating device. Compared with a separation nut device, the wrapping belt separation device has the advantages of good connection rigidity, high reliability and the like, and becomes the separation device which is used most at home and abroad in mainstream carrier rockets.
The belting separation device mainly comprises 2 or more than 2 belting, a plurality of V-shaped clamping blocks, a column shaft, a separation fire element and other parts. The column shaft is arranged at two ends of the steel belt, and the inner side of the steel belt is provided with a V-shaped clamping block. After the carrier rocket is in butt joint with the effective load, the steel belt is surrounded on the outer edge of the butt joint surface, a plurality of belting are connected by using a separation initiating explosive element (an explosive bolt or a cutter), the belting is tensioned by a force applying device, and then a locking nut of the separation initiating explosive element (an explosive bolt or a cutter) is locked. After the wrapping belt applies pretightening force, the wrapping belt applies radial pressure to the V-shaped clamping block, the V-shaped clamping block generates normal force on the inclined plane of the butt joint frame, and the two connected parts are tightly pressed together by the V-shaped clamping block. During separation, the separation initiating explosive element works to instantly disconnect the connection between the wrapping belts, the pre-tightening force of the wrapping belts is relaxed, the energy of the butt joint frame is rapidly released to generate radial impact on the V-shaped clamping block, the V-shaped clamping block is rapidly separated from the butt joint frame, and the effective load is pushed away from the carrier rocket under the action of the separation spring, so that the star and arrow separation is realized.
The band of present band separator adopts thin steel band to make, and the flexibility is very big, has following problem: when bearing large axial load and bending moment load, the deformation of the belting is large, and the deformation of the upper end frame and the lower end frame cannot be well controlled; after the bag belt separating device is unlocked, the flexible bag belt is constrained in motion envelope by adopting a tension spring and a limiting spring, the constraint is poor, the dynamic envelope of the bag belt is large in separation, and the bag belt is difficult to control; the belting adopts the extension spring to retrain, needs great axial installation space, can't use under the limited condition of installation space.
And the prior strap separation devices generally rely on explosive bolts or cutters to break the connection between the straps. Because the work of the explosive bolt or the cutter realizes the material fracture instantly within hundreds of microseconds, the pretightening force of the wrapping belt and the strain energy of the butt joint frame are released instantly, the separation impact of the wrapping belt type separating device is overlarge, and hidden troubles are brought to the safety of effective loads and electronic instrument equipment on the carrier rocket. Meanwhile, since the explosive bolt or the cutter and other separated initiating explosive elements cannot be reused after working once, the unlocking and separation of the wrapping tape cannot be detected on the ground in advance, and the separation reliability is not improved.
Disclosure of Invention
The technical problem solved by the invention is as follows: the shortcomings of the prior art are overcome and a rigid strap release device is provided having higher load carrying capacity, more precise and smaller envelope of separation motion and smaller axial installation space.
The purpose of the invention is realized by the following technical scheme: a rigid strap release device comprising: the device comprises a rigid wrapping belt, a plurality of V-shaped blocks, a plurality of fixing clamps, an unlocking element, an upper end frame and a lower end frame; the rigid wrapping belt is in an open ring shape, and two ends of the rigid wrapping belt are connected through the unlocking element; the plurality of V-shaped blocks are connected with the inner wall of the rigid wrapping belt through a plurality of fixing clamps; a plurality of V-shaped blocks are distributed along the circumferential direction of the rigid wrapping belt; the lower end face of the upper end frame is connected with the upper end face of the lower end frame through a plurality of V-shaped blocks.
In the above-mentioned rigid wrapping tape releasing apparatus, further comprising: a trap; the capturing device comprises an L-shaped support and an elastic sheet, the elastic sheet is connected with the upper portion of the L-shaped support, the L-shaped support is arranged on the outer wall of the lower end frame, and the rigid wrapping tape can be clamped inside the L-shaped support through the elastic sheet.
In the rigid wrapping tape releasing device, a first wedge-shaped flange is arranged on the lower end face of the upper end frame, and a second wedge-shaped flange is arranged on the upper end face of the lower end frame; the first wedge-shaped flange is butted with the second wedge-shaped flange and then embedded in the V-shaped angle inner surface of the V-shaped block.
In the rigid wrapping tape releasing device, the upper end surface and the lower end surface of the V-shaped block are provided with a plurality of threaded holes, the fixing clamp is connected with the V-shaped block through a screw and the threaded holes, and the fixing clamp sleeve is arranged on the rigid wrapping tape.
In the rigid wrapping tape releasing device, the inner surface and the back surface of the V-shaped angle of the V-shaped block are coated with a lubricating coating.
In the above rigid harness releasing device, each V-shaped block is connected to the rigid harness by two of the fixing clips.
In the rigid wrapping tape releasing device, the unlocking element comprises a left-handed screw, a right-handed screw, a shell, a slow opening device and an unlocking device; the slow opening device is connected with the unlocking device; the slow opening device and the unlocking device are arranged in the shell; the unlocking device can enable the slow opening device to rotate; one end of the left-handed screw is connected with the slow opening device through the shell; the other end of the left-handed screw is connected with one open end of the rigid wrapping tape; one end of the right-handed screw is connected with the slow opening device through the shell; the other end of the right-handed screw is connected with the other open end of the rigid wrapping tape (100).
In the rigid wrapping tape releasing device, the shell comprises a left end cover, a right end cover, a box cover and a box body; wherein, the box cover is connected with the box body; the left end cover is arranged on the box cover, and the left-handed screw is connected with the slow opening device through the left end cover; the right-hand end cover is arranged on the box body, and the right-hand screw rod is connected with the slow opening device through the right-hand end cover.
In the rigid wrapping tape releasing device, the slow opening device comprises a ratchet wheel turntable, a turntable bearing, a flywheel left bearing, a plurality of round pins, a flywheel right bearing, a volute spiral spring and a retainer; the flywheel is provided with circular grooves corresponding to the number of the circular pins along the circumferential direction of the flywheel; the flywheel is located in the middle, the retainer is sleeved on the flywheel, and a plurality of circular grooves of the flywheel correspond to a plurality of rectangular grooves in the circumferential direction of the retainer one by one; the end of the inner ring of the volute spiral spring is fixed on the outer ring of the retainer, a round pin is arranged in each rectangular groove of the retainer, and the volute spiral spring is wound on the outer ring of the retainer so that each round pin is embedded into the round groove corresponding to the flywheel; the outer ring end of the scroll spring penetrates through the inner cylindrical surface of the ratchet turntable and is fixed on the outer cylindrical surface of the ratchet turntable; the inner ring of the turntable bearing is arranged at one end of the retainer, and the ratchet turntable is sleeved on the outer ring of the turntable bearing; the left end and the right end of the flywheel are respectively arranged on the left flywheel bearing and the right flywheel bearing, the box body is arranged outside the right flywheel bearing, and the retainer is fixed on the box body through a flange hole of the retainer; the left-handed screw is connected with one end of the flywheel, and the right-handed screw is connected with the other end of the flywheel.
In the rigid wrapping tape releasing device, the unlocking device comprises an unlocking swing rod shaft, a reset torsion spring, a ratchet wheel swing rod, an unlocking swing rod torsion spring, a trigger swing rod shaft, a trigger swing rod torsion spring and an unlocking swing rod; the reset torsion spring, the ratchet wheel swing rod, the unlocking swing rod and the unlocking swing rod torsion spring sequentially penetrate through the unlocking swing rod shaft, and the unlocking swing rod shaft is mounted on the box body in a communicating mode; the trigger swing rod and the trigger swing rod torsion spring sequentially penetrate through the trigger swing rod shaft, and the trigger swing rod shaft is installed on the box body; ratchets on the outer ring of the ratchet wheel rotating disc act on the inner side of the ratchet wheel swing rod to be protruded, and the ratchet wheel swing rod acts on the lower part of the unlocking swing rod through an outer side triangular boss; the two ends of the reset torsion spring are respectively arranged on the ratchet wheel swing rod and the unlocking swing rod, the two ends of the unlocking swing rod torsion spring are respectively arranged on the unlocking swing rod and the box body, and the two ends of the trigger swing rod torsion spring are respectively arranged on the trigger swing rod and the box body; the end part of the unlocking swing rod is embedded into the groove of the trigger swing rod.
Compared with the prior art, the invention has the following beneficial effects:
compared with the existing belting separating device, the belting with higher rigidity is fixed outside the V-shaped block, when the connecting surface is subjected to axial tension load or bending moment load, because the rigidity of the belting is good, the elastic deformation is not easy to occur, and the outward displacement of the V-shaped block along the radial direction can be limited, the axial deformation between the upper end frame and the lower end frame can be controlled, and the larger axial tension load or bending moment load can be borne; when the bag is unlocked, the bag strap has higher rigidity, the outward expansion motion track is fixed and limited by the catcher, and the motion envelope can be accurately controlled; because the tension spring for capturing the wrapping tape is eliminated, the rigid wrapping tape releasing device has a small axial installation space, and the function of connecting and unlocking the effective load can be realized in a small installation space.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural view of a rigid harness release device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a rigid harness release mechanism provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of another state of the rigid harness release apparatus provided in accordance with an embodiment of the present invention prior to installation;
FIG. 4 is a schematic view of a V-block of a rigid strap release apparatus provided in accordance with an embodiment of the present invention;
FIG. 5-1 is a schematic view of the installation of a rigid harness release provided in accordance with an embodiment of the present invention;
FIG. 5-2 is a partial schematic view of a rigid strap release device according to an embodiment of the present invention in a captured state after unlocking;
FIG. 6 is an exploded view of an unlocking member provided in an embodiment of the present invention;
FIG. 7 is a schematic view of a connection state of an unlocking member provided in an embodiment of the present invention;
FIG. 8 is a partial schematic view of a connection state of an unlocking element provided by an embodiment of the present invention;
FIG. 9 is another partial schematic view of the connected state of the unlocking element provided by the embodiment of the present invention;
FIG. 10 is a further fragmentary schematic view of the release member connection provided by the embodiment of the present invention;
FIG. 11 is a further fragmentary schematic view of the release member connection provided by the embodiment of the present invention;
FIG. 12 is a further partial schematic view of a non-pyrotechnic release device connection for connection and disconnection of a wire disconnect device in accordance with an embodiment of the present invention;
FIG. 13 is a further fragmentary schematic view of the release member connection provided by the embodiment of the present invention;
FIG. 14 is a further fragmentary schematic view of the release member connection provided by the embodiment of the present invention;
fig. 15 is a partial schematic view of a connected state of the unlocking member according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, 2, 3, 4, 5-1 and 5-2, the rigid strap releasing apparatus of the present embodiment includes a strap 100, a V-block 200, a fixing clip 300, a trap 400, an unlocking member 500, an upper end frame 600 and a lower end frame 700. The rigid strap 100 has a relatively thick open ring shape with mounting holes 800 at both ends for connection to the unlocking element 500. The rigid strap 100 has a large opening in the free state. The V-block 200 is an arc-shaped block with a V-shaped cross section, and is coated with a lubricating coating on both the V-shaped angled inner surface 900 and the back surface 1000. The upper and lower end faces of the V-block 200 each have two threaded holes 1100. The fixing clip 300 has a U-shaped thin plate structure, and two circular holes are formed at two ends of the fixing clip. Each V-block 200 is fixed to the inside of the strap 100 from the outside of the strap 100 by two fixing clips 300. The V-block can slide axially inside the strapping band 100.
In the above embodiment, as shown in fig. 5, the capturing device 400 includes an L-shaped support 4100 and a resilient tab 1600, the resilient tab 1600 is connected to the upper portion of the L-shaped support 4100, the L-shaped support 4100 is disposed on the outer wall of the lower end frame 700, and the rigid strap 100 can be clamped inside the L-shaped support 4100 by the resilient tab 1600.
In the above embodiment, the lower end surface of the upper end frame 600 is provided with the first wedge-shaped flange 6100, and the upper end surface of the lower end frame 700 is provided with the second wedge-shaped flange 7100; wherein, the first wedge flange 6100 and the second wedge flange 7100 are embedded on the V-shaped inner surface 900 of the V-block 200 after being butted.
The upper end frame 600 and the lower end frame 700 are both circular ring structures, and the catcher 400 is a U-shaped structure and is installed on the outer wall of the lower end frame 700.
As shown in fig. 5-1, when the rigid harness releasing device is connected, the harness 100 on which the V-block 200 is mounted is first inserted into the lower end frame from the upper end of the lower end frame 700, and then the upper end frame 600 is butted against the lower end frame 700 so that the outer circles of the upper end frame 600 and the lower end frame 700 coincide with each other. At this time, the taping tape 100 is lifted up, so that the V-shaped inner surface 900 of the V-shaped block 200 is tightly attached to the first wedge-shaped flange 6100 of the upper end frame 600 and the second wedge-shaped flange 7100 of the lower end frame 700, and a pre-tightening force is applied to the opening end of the taping tape 100 to tighten the opening, thereby ensuring the reliable connection of the upper end frame 600 and the lower end frame 700. Then, the unlocking element 500 is installed in the installation hole 800 at the opening of the taping so that the taping 100 is always in a tightened state. The upper end frame 600 is connected with the payload 1300, and the lower end frame 700 is connected with the carrier rocket 1400, so that the connection function of the payload 1300 and the carrier rocket 1400 is realized.
As shown in fig. 5-2, when the rigid strapping release device is unlocked, the unlocking element 500 operates after receiving an unlocking signal, the two ends of the opening of the strapping tape 100 are released, the strapping tape 100 is radially expanded and drives the V-block 200 to radially move, so that the inner surface 900 of the V-shaped corner is separated from the first wedge-shaped flange 6100 of the upper end frame 600 and the second wedge-shaped flange 7100 of the lower end frame 700, the connection constraint between the upper end frame 600 and the lower end frame 700 disappears, and the function of unlocking the payload is realized.
The bag strap 100 continues to expand outwards and stops moving under the limitation of the catcher 400, and the bag strap does not bounce inwards under the limitation of the elastic sheet 1600 in the catcher 400, so that the functions of limiting and catching the bag strap 100 are realized.
The belting of the rigid belting release device is made of thicker aluminum alloy into an open ring shape, and the opening is larger in a free state. A plurality of V-shaped blocks are arranged on the inner side of the wrapping belt, each V-shaped block is connected with the wrapping belt through two fixing clamps, the V-shaped blocks and the inner side of the wrapping belt are coated with lubricating materials, and the V-shaped blocks can slide on the inner side of the wrapping belt along the circumferential direction.
When the rigid belting releasing device is used for connecting the payload with the carrier rocket, the loading device is used for tensioning the belting opening, certain pretightening force is applied to enable the V-shaped grooves of all the V-shaped blocks to be tightly matched with the flanges on the upper end frame and the lower end frame, then the unlocking element is installed at the belting opening, the unlocking element is fixed to the two ends of the belting opening by adopting the nut, the loading device is disassembled at the moment, the reliable connection of the upper end frame and the lower end frame by the belting and the V-shaped blocks can be ensured, the upper end frame and the lower end frame are respectively connected with the payload and the carrier rocket, and the.
When the payload is separated, after a payload separation signal is received, the unlocking device works to release the connection of the two ends of the opening of the wrapping tape, the wrapping tape is opened under the action of elastic potential energy stored in the wrapping tape and strain energy stored in the upper end frame and the lower end frame to drive the V-shaped block to be separated from the flanges on the upper end frame and the lower end frame to unlock the upper end frame and the lower end frame, and the upper end frame and the lower end frame are separated through the spring to unlock the payload and the carrier rocket.
The plurality of capturers are circumferentially arranged on the lower end frame, after the wrapping tape is unlocked, the wrapping tape is outwards opened to move to the capturers, the motion is stopped, the inner side elastic pieces of the capturers are limited, the rebound is prevented, the wrapping tape capturing function is realized, and the motion envelope of the wrapping tape is controlled.
FIG. 6 is an exploded view of an unlocking member provided in an embodiment of the present invention; FIG. 7 is a schematic view of a connection state of an unlocking member provided in an embodiment of the present invention; FIG. 8 is a partial schematic view of a connection state of an unlocking element provided by an embodiment of the present invention; FIG. 9 is another partial schematic view of the connected state of the unlocking element provided by the embodiment of the present invention; FIG. 10 is a further fragmentary schematic view of the release member connection provided by the embodiment of the present invention; fig. 11 is a partial schematic view of a connected state of the unlocking member according to the embodiment of the present invention.
As shown in fig. 6 to 11, the unlocking element provided in this embodiment includes a left-handed screw 1, a right-handed screw 2, a left end cap 3, a right end cap 4, a box cover 5, a box body 6, a ratchet turntable 7, a turntable bearing 8, a left flywheel bearing 9, a round pin 10, a flywheel 11, a right flywheel bearing 12, a volute spiral spring 13, a retainer 14, an unlocking swing link shaft 15, a reset torsion spring 16, a ratchet swing link 17, an unlocking swing link torsion spring 18, a trigger swing link shaft 19, a trigger swing link 20, a trigger swing link torsion spring 21, and an unlocking swing link 22. The flywheel 11 is located at the middle position, and the retainer 14 is sleeved outside the flywheel 11, so that eight circular grooves in the circumferential direction of the flywheel 11 correspond to eight rectangular grooves in the circumferential direction of the retainer 14 one by one. The inner ring end of the spiral spring 13 is fixed on the outer ring of the retainer 14, a round pin 10 is arranged in each rectangular groove of the retainer 14, the spiral spring 13 is wound on the outer ring of the retainer 14 in a releasing mode, and the eight round pins 10 are embedded into the round grooves of the flywheel 11. The outer ring end of scroll spring 13 passes through the inner cylindrical surface of ratchet wheel 7 and is fixed to the outer cylindrical surface of ratchet wheel 7. The inner ring of the turntable bearing 8 is arranged at one end of the retainer 14, and the ratchet turntable 7 is sleeved on the outer ring of the turntable bearing 8. The left end and the right end of the flywheel 11 are respectively provided with a left flywheel bearing 9 and a right flywheel bearing 12, the box body 6 is arranged outside the right flywheel bearing 12, and the retainer 14 is fixed on the box body 6 through a flange hole thereof. The reset torsion spring 16, the ratchet wheel swing rod 17, the unlocking swing rod 22 and the unlocking swing rod torsion spring 18 sequentially penetrate through the unlocking swing rod shaft 15, and the unlocking swing rod shaft 15 is installed on the box body 6 through tail threads. The trigger swing rod 20 and the trigger swing rod torsion spring 21 sequentially penetrate through the trigger swing rod shaft 19, and the trigger swing rod shaft 19 is installed on the box body 6 through tail threads. Ratchets on the outer ring of the ratchet wheel rotating disc 7 act on the inner side protrusions of the ratchet wheel swing rod 17, and the ratchet wheel swing rod 17 acts below the unlocking swing rod 22 through the outer side triangular boss. Two ends of the reset torsion spring 16 are respectively connected with the ratchet wheel swing rod 17 and the elongated holes of the unlocking swing rod 22. Two ends of the unlocking swing rod torsion spring 18 are respectively connected with the unlocking swing rod 22 and the elongated hole of the box body 6. Two ends of the trigger swing rod torsion spring 21 are respectively connected with the trigger swing rod 20 and the elongated holes of the box body 6. The end of the unlocking rocker 22 engages in a recess of the trip rocker 20. Non-explosive trigger elements such as electromagnets, motors or memory alloy wires are fixedly installed through the two long circular grooves in the upper portion of the box body 6, and output force of the non-explosive trigger elements acts on the rectangular acting surface of the unlocking swing rod 22. The box cover 5 is arranged on the left bearing 9 of the flywheel, and the box cover 5 and the box body 6 are fixedly connected through screws. The left end cover 3 and the right end cover 4 are respectively arranged at two ends of the box cover 5 and the box body 6, the left-handed screw 1 and the right-handed screw 2 are respectively arranged in the flywheel 11 from the hexagonal holes on the left end cover 3 and the right end cover 4, and the two screws are in non-self-locking threaded connection with the flywheel 5.
After the assembly of the non-explosive sustained-release device is completed, the two ends of the left-handed screw 1 and the right-handed screw 2 are connected with the wrapping tape, and a pre-tightening torque is loaded on the wrapping tape to complete the connection function.
As shown in fig. 7 to 11, the non-pyrotechnic sustained release apparatus of the present embodiment is in a connected state. The left-handed screw 1 and the right-handed screw 2 respectively penetrate through the hexagonal holes of the left end cover 3 and the right end cover 4 and are connected with the flywheel 11 through the non-self-locking threads at the end parts of the left-handed screw 1 and the right-handed screw 2. The pre-tightening force of the wrapping belt is loaded on the flywheel 11 along the axial direction through the left-handed screw 1 and the right-handed screw 2, and the flywheel 11 generates a rotary motion trend under the axial tension. The holder 14 is connected to the housing 6 by means of screw holes in its flange. The screws 8 are embedded in circular grooves in the circumference of the flywheel 11, and the flywheel is prevented from rotating by the retainer 14. The round pin 10 has a tendency to move outward along the 8 square holes in the circumferential direction of the cage 14 under the action of the radial component force of the round slot. The spiral spring 13 is wound outside the retainer 14, the inner ring of the spiral spring 13 is fixed with the retainer 14, the outer ring of the spiral spring 13 is fixed with the ratchet turntable 7, the spiral spring 13 is driven to be screwed by clockwise rotating the ratchet turntable 7, and the 8 round pins 10 are fastened in the round grooves of the flywheel 11, so that the flywheel 11 is prevented from rotating. The ratchet rotary disc 7 generates a reverse rotation trend under the action of the tension of the scroll spring 13. The ratchet wheel rotating disc 7 acts on the ratchet wheel swing rod 17 through the ratchets on the outer ring of the ratchet wheel rotating disc, the ratchet wheel swing rod 17 acts on the unlocking swing rod 22 through the boss, and the ratchet wheel rotating disc and the unlocking swing rod simultaneously generate a clockwise rotation trend around the unlocking swing rod shaft 15. The end of the unlocking swing rod 22 acts in the groove of the trigger swing rod 20, the acting force forms self-locking through the center of the rotating shaft of the trigger swing rod 20, and the trigger swing rod 20 cannot rotate freely, so that all parts in the device are limited to move, the self-locking of the whole device is realized, and the reliable connection of the device under the wrapping force is ensured.
As shown in fig. 12 and 13, the non-explosive sustained release device of this embodiment is in an unlocked state, and a non-explosive element such as an electromagnet, a motor, or a memory alloy wire is energized to output an acting force to push the trigger swing link 20 to rotate, after the trigger swing link 20 leaves the self-locking position, the trigger swing link 20 continues to rotate under the action of the unlocking swing link 22, and after the end of the unlocking swing link 22 leaves the groove of the trigger swing link 20, the unlocking swing link 22 and the ratchet swing link 17 rotate clockwise around the unlocking swing link shaft 15 under the action of the ratchet turntable 7 to unlock the ratchet turntable 7. The ratchet wheel rotating disc 7 rotates anticlockwise under the action of elastic potential energy of the volute spiral spring 13, meanwhile, the volute spiral spring 13 relaxes to release constraint on the round pin 10, the round pin 10 moves outwards along the rectangular groove of the retainer 14 to release constraint on the flywheel 11, the flywheel 11 rotates under the action of pretightening force of the left-handed screw 1 and the right-handed screw 2, meanwhile, the left-handed screw 1 and the right-handed screw 2 are disconnected with the flywheel 11, and therefore the wrapping tape unlocking is achieved. The invention reduces the belt separation impact by three measures, on one hand, the axial motion of the belt pre-tightening force acting on the left-handed screw 1 and the right-handed screw 2 is converted into the rotary motion of the flywheel 11 by utilizing the motion characteristic of spiral transmission to increase the release time of the pre-tightening force; on the other hand, the release time of the pre-tightening force is increased by utilizing the relaxation of the volute spiral spring 13 and the release of the round pin 10; in the third aspect, the non-initiating explosive device is used for pushing the trigger swing rod 20 to realize unlocking of the device, so that impact generated by work of initiating explosive devices is avoided.
As shown in fig. 14 and 15, the non-explosive slow release device of the present embodiment is in the resetting process, the power supply of the non-explosive element is cut off, the unlocking swing link 22 and the ratchet swing link 17 return to the initial position under the action of the unlocking swing link torsion spring 18, and the triggering swing link 20 returns to the initial position under the action of the triggering swing link torsion spring 21. The left-handed screw 1 and the right-handed screw 2 are connected with the flywheel 11 by penetrating through the hexagonal holes of the left end cover 3 and the right end cover 4 again, the ratchet turntable 7 is rotated clockwise, the ratchet turntable 7 drives the volute spiral spring 13 to be screwed, and the round pin 10 is embedded into the round groove of the flywheel again. At the moment, the ratchet swing rod 17 rotates under the stirring of the ratchets on the outer ring of the ratchet turntable 7, and the movement of the ratchet turntable 7 is not hindered. When the ratchet wheel rotary disc 7 drives the scroll spring 13 to be screwed in place, ratchets on the outer ring of the ratchet wheel rotary disc 7 act on the ratchet wheel swing rod 17 again, the whole device is in a locked state, and the resetting of the device is completed.
Specifically, in the connection state, the left-handed screw and the right-handed screw are respectively connected with the flywheel through the multiple threads at the end part of the screw, and the multiple threads are non-self-locking transmission threads and can convert the linear motion of the screws into the rotary motion of the flywheel. The pre-tightening force of the wrapping belt is loaded on the flywheel along the axial direction through the two screw rods, and the flywheel generates a rotating motion trend under the axial tension of the two screw rods. 8 round pins are embedded into the circumferential round grooves of the flywheel and prevent the flywheel from rotating through the retainer. The 8 round pins generate the trend of moving outwards along the square hole of the retainer under the action of the radial component force of the round groove. The spiral spring is wound outside the retainer, the inner ring of the spiral spring is fixed with the retainer, the outer ring of the spiral spring is fixed with the ratchet wheel turntable, the spiral spring is driven to be screwed by rotating the ratchet wheel turntable, and 8 round pins are fastened in the round grooves of the flywheel, so that the flywheel is prevented from rotating. The ratchet wheel rotary disc generates a reverse rotation trend under the action of the force of the volute spiral spring and the pretightening force. The ratchet wheel rotating disc acts on the ratchet wheel swing rod through the ratchet, the ratchet wheel swing rod acts on the unlocking swing rod through the boss, and the ratchet wheel rotating disc and the unlocking swing rod generate a rotating trend around the unlocking swing rod shaft. The end part of the unlocking swing rod acts on the trigger swing rod, the trigger swing rod cannot rotate freely under the action of the action force through a rotating shaft of the trigger swing rod to form self-locking, so that the rotation of the ratchet wheel rotating disc is limited, the self-locking of the whole device is finally realized, and the reliable connection of the device under the pre-tightening force of the wrapping tape is ensured.
When unlocking, a non-pyrotechnic element (such as an electromagnet, a motor or a memory alloy wire) is electrified to act and push the trigger swing rod to rotate, after the trigger swing rod leaves the self-locking position, the whole unlocking device releases self-locking, all parts start to move, finally, threaded connection of the screw rod and the flywheel is released, the tightening force of the wrapping tape is released, and the wrapping tape unlocking is realized.
When the ratchet wheel is reset, the power supply of the non-explosive element is cut off, and the trigger swing rod, the unlocking swing rod and the ratchet wheel swing rod return to the initial positions under the action of the torsion spring. The screw rod is connected with the flywheel, the ratchet wheel rotating disc is rotated, the rotating disc drives the volute spiral spring to be screwed, 8 round pins are embedded into the round grooves of the flywheel again, and the device is reset.
This embodiment provides a mechanism for strap attachment and secure unlocking that is triggered by a non-pyrotechnic element. The mechanism can complete the connection bearing function of the wrapping tape in a locking state, and realizes the unlocking of the wrapping tape and the slow release of the pretightening force by controlling the triggering of an electromagnet, a motor or a memory alloy element during the unlocking, so that the separation of the effective load can be realized. The mechanism can ensure that the belting separating device has the advantages of low impact, detectability before use, high reliability and the like, and particularly realizes that electromagnets, motors or memory alloys and the like are used as trigger elements, so that repeated tests can be carried out on the ground before use.
Compared with the explosive bolt and the cutter adopted by the existing belt separating device, the belt separating device has the advantages that the non-explosive element is used for replacing an explosive device, the safety of the belt separating device is improved, the belt separating device has the capability of repeated testing, and meanwhile, the separating impact is reduced. Meanwhile, the volute spiral spring, the round pin, the screw and the multi-thread threads of the flywheel can prolong the release time of the wrapping belt pretightening force, so that the separation impact is reduced. By designing the ratchet wheel and the swing rod reset mechanism, the product is easy to reset in ground test, and the use efficiency is improved.
Compared with the existing belting separating device, the belting with higher rigidity is fixed outside the V-shaped block, when the connecting surface is subjected to axial tension load or bending moment load, because the rigidity of the belting is good, the elastic deformation is not easy to occur, and the radial outward displacement of the V-shaped block can be limited, so that the axial deformation between the upper end frame and the lower end frame can be controlled, and the larger axial tension load or bending moment load can be borne; when the bag is unlocked, the bag strap has higher rigidity, the outward expansion motion track is fixed and limited by the catcher, and the motion envelope can be accurately controlled; because the tension spring for capturing the wrapping tape is eliminated, the rigid wrapping tape releasing device has a small axial installation space, and the function of connecting and unlocking the effective load can be realized in a small installation space.
The above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (9)
1. A rigid harness release device, comprising: the device comprises a rigid wrapping belt (100), a plurality of V-shaped blocks (200), a plurality of fixing clamps (300), an unlocking element (500), an upper end frame (600) and a lower end frame (700); wherein,
the rigid wrapping belt (100) is in an open ring shape, and two ends of the rigid wrapping belt (100) are connected through the unlocking element (500);
the V-shaped blocks (200) are connected with the inner wall of the rigid wrapping tape (100) through the fixing clamps (300); a plurality of V-shaped blocks (200) are distributed along the circumferential direction of the rigid wrapping belt (100);
the lower end face of the upper end frame (600) is connected with the upper end face of the lower end frame (700) through a plurality of V-shaped blocks (200); wherein,
the unlocking element (500) comprises a left-handed screw (1), a right-handed screw (2), a shell, a slow opening device and an unlocking device; wherein,
the slow opening device is connected with the unlocking device; the slow opening device and the unlocking device are arranged in the shell; the unlocking device can enable the slow opening device to rotate;
one end of the left-handed screw (1) is connected with the slow opening device through the shell; the other end of the left-handed screw (1) is connected with one open end of the rigid wrapping tape (100);
one end of the right-handed screw (2) is connected with the slow opening device through the shell; the other end of the right-handed screw (2) is connected with the other open end of the rigid wrapping tape (100).
2. The rigid strap release device of claim 1, further comprising: a trap (400); the catcher (400) comprises an L-shaped support (4100) and a spring plate (1600), the spring plate (1600) is connected with the upper part of the L-shaped support (4100), the L-shaped support (4100) is arranged on the outer wall of the lower end frame (700), and the rigid wrapping tape (100) can be clamped inside the L-shaped support (4100) through the spring plate (1600).
3. The rigid strap release device of claim 1, wherein: a first wedge-shaped flange (6100) is arranged on the lower end face of the upper end frame (600), and a second wedge-shaped flange (7100) is arranged on the upper end face of the lower end frame (700); wherein,
the first wedge-shaped flange (6100) and the second wedge-shaped flange (7100) are embedded on the V-shaped angle inner surface (900) of the V-shaped block (200) after being butted.
4. The rigid strap release device of claim 1, wherein: the upper end face and the lower end face of the V-shaped block (200) are provided with a plurality of threaded holes (1100), the fixing clamp (300) is connected with the V-shaped block (200) through screws and the threaded holes (1100), and the rigid wrapping belt (100) is sleeved with the fixing clamp (300).
5. The rigid strap release device of claim 3, wherein: the V-shaped angle inner surface (900) and the back surface (1000) of the V-shaped block (200) are coated with lubricating coatings.
6. The rigid strap release device of claim 4, wherein: each V-shaped block (200) is connected with the rigid strapping (100) by two fixing clips (300).
7. The rigid strap release device of claim 1, wherein: the shell comprises a left end cover (3), a right end cover (4), a box cover (5) and a box body (6); wherein,
the box cover (5) is connected with the box body (6);
the left end cover (3) is arranged on the box cover (5), and the left-handed screw (1) is connected with the slow opening device through the left end cover (3);
the right end cover (4) is arranged on the box body (6), and the right-handed screw (2) is connected with the slow opening device through the right end cover (4).
8. The rigid strap release device of claim 7, wherein: the slow opening device comprises a ratchet wheel turntable (7), a turntable bearing (8), a flywheel left bearing (9), a plurality of round pins (10), a flywheel (11), a flywheel right bearing (12), a volute spiral spring (13) and a retainer (14); wherein,
circular grooves (111) corresponding to the number of the circular pins (10) are formed in the flywheel (11) along the circumferential direction;
the flywheel (11) is located in the middle, the retainer (14) is sleeved on the flywheel (11), and a plurality of circular grooves (111) of the flywheel (11) correspond to a plurality of rectangular grooves (141) in the circumferential direction of the retainer (14) one by one;
the inner ring end of the spiral spring (13) is fixed on the outer ring of the retainer (14), a round pin (10) is installed in each rectangular groove (141) of the retainer (14), the spiral spring (13) is wound on the outer ring of the retainer (14), and each round pin (10) is embedded into a round groove (111) corresponding to the flywheel (11);
the outer ring end of the scroll spring (13) penetrates through the inner cylindrical surface of the ratchet wheel rotating disc (7) and is fixed on the outer cylindrical surface of the ratchet wheel rotating disc (7);
the inner ring of the turntable bearing (8) is arranged at one end of the retainer (14), and the ratchet turntable (7) is sleeved on the outer ring of the turntable bearing (8);
the left end and the right end of the flywheel (11) are respectively arranged on the flywheel left bearing (9) and the flywheel right bearing (12), the box body (6) is arranged outside the flywheel right bearing (12), and the retainer (14) is fixed on the box body (6) through a flange hole of the retainer;
the left-handed screw (1) is connected with one end of the flywheel (11), and the right-handed screw (2) is connected with the other end of the flywheel (11).
9. The rigid strap release device of claim 8, wherein: the unlocking device comprises an unlocking swing rod shaft (15), a reset torsion spring (16), a ratchet wheel swing rod (17), an unlocking swing rod torsion spring (18), a trigger swing rod shaft (19), a trigger swing rod (20), a trigger swing rod torsion spring (21) and an unlocking swing rod (22); wherein,
the reset torsion spring (16), the ratchet wheel swing rod (17), the unlocking swing rod (22) and the unlocking swing rod torsion spring (18) sequentially penetrate through the unlocking swing rod shaft (15), and the unlocking swing rod shaft (15) is installed on the box body (6);
the trigger swing rod (20) and the trigger swing rod torsion spring (21) sequentially penetrate through the trigger swing rod shaft (19), and the trigger swing rod shaft (19) is installed on the box body (6);
ratchets on the outer ring of the ratchet wheel rotating disc (7) act on the inner side of the ratchet wheel swing rod (17) to be protruded, and the ratchet wheel swing rod (17) acts on the lower part of the unlocking swing rod (22) through an outer side triangular boss;
two ends of the reset torsion spring (16) are respectively arranged on the ratchet wheel swing rod (17) and the unlocking swing rod (22), two ends of the unlocking swing rod torsion spring (18) are respectively arranged on the unlocking swing rod (22) and the box body (6), and two ends of the trigger swing rod torsion spring (21) are respectively arranged on the trigger swing rod (20) and the box body (6);
the end part of the unlocking swing rod (22) is embedded into the groove of the trigger swing rod (20).
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| CN201711181989.0A CN107954006B (en) | 2017-11-23 | 2017-11-23 | Rigid belt releasing device |
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| CN201711181989.0A CN107954006B (en) | 2017-11-23 | 2017-11-23 | Rigid belt releasing device |
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| CN107954006B true CN107954006B (en) | 2019-12-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109050986B (en) * | 2018-07-02 | 2020-07-28 | 上海卫星工程研究所 | High-rigidity low-impact sealing type connection and separation device and method for spacecraft |
| CN109798809A (en) * | 2019-02-13 | 2019-05-24 | 北京宇航系统工程研究所 | The low impact of one kind, small envelope, domain formula payload separator |
| CN110254747B (en) * | 2019-05-27 | 2020-12-01 | 北京强度环境研究所 | Force measurement supporting device based on wrapping belt |
| CN110239748B (en) * | 2019-07-11 | 2020-11-03 | 航天科工火箭技术有限公司 | Inter-satellite fire separation device |
| CN110763091B (en) * | 2019-11-13 | 2021-11-05 | 南京工业大学 | Asymmetric V-shaped groove and double-point unlocking type rigid wrapping belt for interstage linear separation device |
| CN111071495B (en) * | 2020-01-06 | 2021-03-30 | 哈尔滨工业大学 | Connecting and unlocking mechanism based on worm transmission |
| CN111619831B (en) * | 2020-04-29 | 2021-11-16 | 航天东方红卫星有限公司 | Connecting rod type satellite-rocket separation mechanism |
| CN113184226B (en) * | 2021-04-22 | 2022-09-30 | 上海宇航系统工程研究所 | Belting type space locking and releasing device |
| CN113184227B (en) * | 2021-04-22 | 2022-07-26 | 上海宇航系统工程研究所 | Passive space locking and releasing device |
| CN113772135B (en) * | 2021-09-06 | 2024-03-29 | 太原科技大学 | Pneumatic shearing unlocking mechanism and application thereof |
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| US4715565A (en) * | 1986-05-27 | 1987-12-29 | Hughes Aircraft Company | Clamping connection assembly for spacecraft |
| ES2131476B1 (en) * | 1997-09-26 | 2000-03-01 | Const Aeronauticas Sa | SATELLITE FIXING AND SEPARATION SYSTEM. |
| SE0103508L (en) * | 2001-10-19 | 2002-09-03 | Saab Ericsson Space Ab | Bandage on a spacecraft |
| JP5479145B2 (en) * | 2010-02-18 | 2014-04-23 | 三菱重工業株式会社 | Bond separation device, bond separation system, and bond separation method |
| CN102767996B (en) * | 2012-07-30 | 2014-08-27 | 上海宇航系统工程研究所 | Low-impact clamp band joint unlocking device |
| CN102975872B (en) * | 2012-12-25 | 2014-12-24 | 中国科学院长春光学精密机械与物理研究所 | Shock-free wrapping tape type unlocking separation mechanism |
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