CN115566856A - Permanent magnet synchronous motor driving device and driving method - Google Patents
Permanent magnet synchronous motor driving device and driving method Download PDFInfo
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- CN115566856A CN115566856A CN202211255676.6A CN202211255676A CN115566856A CN 115566856 A CN115566856 A CN 115566856A CN 202211255676 A CN202211255676 A CN 202211255676A CN 115566856 A CN115566856 A CN 115566856A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 85
- 238000003860 storage Methods 0.000 claims description 49
- 239000003921 oil Substances 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 23
- 239000007924 injection Substances 0.000 claims description 23
- 239000000498 cooling water Substances 0.000 claims description 21
- 239000010687 lubricating oil Substances 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 230000001050 lubricating effect Effects 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 239000012466 permeate Substances 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract description 11
- 230000010405 clearance mechanism Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000004804 winding Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/12—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by capillary action, e.g. by wicks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to the field of permanent magnet synchronous motors, and discloses a permanent magnet synchronous motor driving device and a driving method, wherein the permanent magnet synchronous motor driving device comprises a permanent magnet synchronous motor main body, a driving main shaft, a tail cover, a motor fan and a pressure-pumping and temperature-reducing mechanism, the driving main shaft is installed at the left end of the permanent magnet synchronous motor main body, the tail cover is installed at the right end of the permanent magnet synchronous motor main body, the motor fan is installed inside the tail cover, the motor fan is rotatably connected with the driving main shaft, a central shaft of the motor fan is movably connected with the pressure-pumping and temperature-reducing mechanism, and the pressure-pumping and temperature-reducing mechanism comprises a connecting swing rod.
Description
Technical Field
The invention relates to the technical field of permanent magnet synchronous motors, in particular to a driving device and a driving method of a permanent magnet synchronous motor.
Background
The permanent magnet synchronous motor is excited by a permanent magnet, so that the structure of the motor is simpler, the processing and assembly cost is reduced, a collecting ring and an electric brush which are easy to cause problems are omitted, the running reliability of the motor is improved, the efficiency and the power density of the motor are improved because exciting current is not needed and exciting loss is avoided, the permanent magnet synchronous motor is composed of a stator, a rotor, an end cover and other parts, the stator is basically the same as a common induction motor, the iron loss of the motor during running is reduced by adopting a lamination structure, the rotor can be made into a solid state or can be laminated, an armature winding can adopt a concentrated integral pitch winding or a distributed short pitch winding and an unconventional winding;
however, the existing permanent magnet synchronous motor driving device lacks the rotating force of a fan, measures for accelerating cooling water to continuously flow through the outer shell of the motor are adopted, the cooling of the outer shell of the motor is incomplete, and the motor output shaft connecting point is difficult to be cooled synchronously, so that the driving device is very inconvenient, and certain potential safety hazards can be brought by high temperature in the long-time running process.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides a permanent magnet synchronous motor driving device and a driving method, which can effectively solve the problems that the permanent magnet synchronous motor driving device in the prior art lacks the measure of accelerating cooling water to continuously flow through an external shell of a motor by using the rotating force of a fan, the cooling of the external shell of the motor is relatively incomplete, the heat dissipation of a motor output shaft connecting point is difficult to be synchronously performed, the inconvenience is very high, and certain potential safety hazards are brought by high temperature in the long-time operation process.
(II) technical scheme
In order to achieve the above objects, the present invention is achieved by the following technical solutions,
the invention discloses a permanent magnet synchronous motor driving device, which comprises a permanent magnet synchronous motor main body, a driving main shaft, a tail machine cover, a motor fan and a pumping and cooling mechanism, wherein the driving main shaft is arranged at the left end of the permanent magnet synchronous motor main body, the tail machine cover is arranged at the right end of the permanent magnet synchronous motor main body, the motor fan is arranged in the tail machine cover, the motor fan is rotatably connected with the driving main shaft, a central shaft of the motor fan is movably connected with the pumping and cooling mechanism, the pumping and cooling mechanism comprises a connecting swing rod, the connecting swing rod is rotatably connected with the tail machine cover, the left end of the connecting swing rod is fixedly connected with the central shaft of the motor fan, a draw bar is sleeved at the right end of the connecting swing rod, a limit sleeve rod is sleeved on the surface of the draw bar, a first piston rod is hinged at the left side of the limit sleeve rod, a water guide cylinder is sleeved on the surface of the first piston rod, the surface of the first piston rod is sleeved with a limiting frame, the bottom end of the limiting frame is fixedly connected with the top end of a tail machine cover, the bottom end of the water guide cylinder is fixedly connected with the surface of the limiting frame, the left end of the water guide cylinder is communicated with two groups of linking pipes, the bottom ends of the linking pipes are communicated with a collecting pipe, the bottom ends of the collecting pipes are communicated with a heat absorbing plate, the heat absorbing plate is fixed on the surface of a permanent magnet synchronous motor main body, the bottom end of the permanent magnet synchronous motor main body is fixedly connected with a water storage tank, the bottom end of the heat absorbing plate is communicated with a water absorbing pipe, the water absorbing pipe is inserted into the water storage tank, the top end of the water storage tank is provided with a water injection hole, the surface of the first piston rod is sleeved with a linking rod, the surface of the linking rod is fixedly connected with a second piston rod, the surface of the second piston rod is sleeved with a gas guide cylinder, and the left end of the gas guide cylinder is communicated with a gas injection pipe, the bottom of jet-propelled pipe is connected with the fixed surface of water storage box, the surface of drive main shaft is provided with lubricating mechanism, lubricating mechanism is used for providing the lubrication when the drive main shaft is rotatory, the surface of connecting the pendulum rod is provided with clearance mechanism, clearance mechanism is used for with be connected the pendulum rod synchronous revolution to clean the surface of motor fan.
Furthermore, the surface of the water storage tank is uniformly provided with annular copper sheets, one end of each annular copper sheet is positioned inside the water storage tank, and the other end of each annular copper sheet is positioned outside the water storage tank.
Furthermore, a switch valve is installed on the front face of the water storage tank, and the water inlet end of the switch valve is communicated with the water storage tank.
Furthermore, the lubricating mechanism comprises a sleeve, the sleeve is sleeved on the surface of the driving main shaft, the sleeve is connected with the driving main shaft through two groups of mounting frames, a sponge ring is fixedly connected inside the sleeve, a connecting pipe is communicated with the top end of the sleeve and is inserted into the surface of the mounting frame at the top end, an oil collecting tank is arranged at the top end of the connecting pipe, the bottom end of the oil collecting tank is communicated with the top end of the connecting pipe, and an oil filling opening is formed in the top end of the oil collecting tank.
Furthermore, one end of the mounting rack is fixedly connected with the surface of the casing, and the other end of the mounting rack is fixedly connected with the surface of the driving spindle.
Furthermore, clear away the mechanism and include the swivel nut, the swivel nut passes through the thread bush and establishes on the surface of connecting the pendulum rod, connect the surface of pendulum rod set up with the swivel nut inner wall on the external screw thread of internal thread looks adaptation, the fixed surface of swivel nut is connected with the movable rod, the sliding surface of movable rod is connected with the sleeve, telescopic fixed surface is connected with the connecting plate, the cover of surface of movable rod is equipped with torque spring, the surface of connecting plate is provided with the brush board, the connecting plate is connected through the bolt with the brush board.
Furthermore, one end of the torsion spring is fixedly connected with the surface of the movable rod, and the other end of the torsion spring is fixedly connected with the surface of the sleeve.
Further, a surface of the screw sleeve is sleeved with the rotary drum, and the screw sleeve is positioned at the right side of the surface of the screw sleeve.
A driving method of a permanent magnet synchronous motor includes the following steps:
step1: cooling water is injected into the water storage tank through the water injection hole;
step2: the permanent magnet synchronous motor main body is started, the main shaft is driven to rotate, the motor fan is driven to rotate, the draw bar slides in the limit sleeve rod under the traction of the limit sleeve rod, the first piston rod is synchronously driven to reciprocate in the water guide cylinder, cooling water in the water storage tank is pumped into the heat absorption plate, and when the first piston rod is in a reset state, the cooling water in the heat absorption plate flows back to the water storage tank again for heat exchange;
step3: when the first piston rod is in a reciprocating state, the connecting rod drives the second piston rod to move in the gas cylinder, and the second piston rod continuously pumps gas and sprays the gas to the connection part of the driving main shaft through the gas injection pipe;
step4: when dust needs to be removed, a user can rotate the rotary drum to enable the brush plate to abut against a filter screen on the surface of the motor fan, then the permanent magnet synchronous motor main body is started, the connection swing rod drives the threaded sleeve to rotate, and the brush plate wipes the filter screen on the surface of the motor fan;
step5: when the junction of drive main shaft and PMSM main part need be lubricated, the user can pass through the oiling mouth with lubricating oil and pour into the sump oil tank for lubricating oil flows into the cover shell through the connecting pipe, and infiltrates the sponge ring, and after the rotation of drive main shaft, the lubricating oil of sponge ring is paintd the junction position at PMSM main part and drive main shaft uniformly.
(III) advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects,
1. according to the invention, by increasing the pressure-pumping and temperature-reducing measures, when the device is started, the main shaft is driven to rotate, the motor fan is driven to rotate, the rotating force of the motor fan is utilized, the first piston rod is synchronously driven to extend and retract in a reciprocating manner in the limiting frame, the first piston rod further moves in a reciprocating manner in the water guide cylinder, cooling water is injected into the water storage tank through the water injection hole in advance, the first piston rod generates suction force in the moving process, the water suction pipe pumps the cooling water in the water storage tank into the heat absorption plate, and when the first piston rod is in a reset state, the cooling water in the heat absorption plate flows back to the water storage tank again for heat exchange, so that the device can conveniently utilize the rotating force of the motor fan to drive the cooling water in the water storage tank to continuously flow through the surface of the main body of the permanent magnet synchronous motor, the heat generated on the surface of the main body of the permanent magnet synchronous motor is absorbed and flows back into the water storage tank again for heat exchange, the damage to the internal components of the permanent magnet synchronous motor is avoided, and the abnormal phenomena such as demagnetization are prevented, and the integrated operation is convenient;
2. according to the invention, by adding the measure of synchronously radiating the joint of the driving main shaft, when the first piston rod is in a reciprocating state, the second piston rod is driven by the connecting rod to move in the gas cylinder, the gas is continuously pumped by the second piston rod and is sprayed to the joint of the driving main shaft through the gas injection pipe, so that the radiating measure of the joint of the driving main shaft is synchronously completed in the operation process, the heat is prevented from being accumulated at the joint of the driving main shaft, the dangerous conditions of looseness and the like of the joint of the driving main shaft due to high temperature are avoided, and the safety in use is improved;
3. according to the invention, by adding the cleaning mechanism, under the long-time operation, a certain amount of dust can be accumulated on the filter screen on the surface of the motor fan, a user can rotate the rotary drum, when the brush plate is abutted against the filter screen on the surface of the motor fan, then the user starts the permanent magnet synchronous motor main body again to enable the connecting swing rod to drive the screw sleeve to rotate, and the brush plate wipes the filter screen on the surface of the motor fan, so that the user can conveniently complete the cleaning operation on the motor fan in the maintenance and repair process, the hard contact of the brush plate on the filter screen of the motor fan is avoided through the resilience force of the torsion spring, a certain fault tolerance rate is provided, the damage is prevented, and the operation difficulty of the user is reduced;
4. according to the invention, by adding the lubricating mechanism, when a user needs to lubricate the joint of the driving main shaft and the permanent magnet synchronous motor main body, the user can inject lubricating oil into the oil collecting tank through the oil injection port, so that the lubricating oil flows into the casing through the connecting pipe and permeates into the sponge ring, and after the driving main shaft rotates, the lubricating oil of the sponge ring is uniformly smeared at the joint of the permanent magnet synchronous motor main body and the driving main shaft, so that the user can lubricate the joint of the permanent magnet synchronous motor main body and the bearing of the driving main shaft conveniently, and the joint of the permanent magnet synchronous motor main body and the driving main shaft is sealed to a certain degree, thereby preventing foreign matters from entering and blocking the rotation of the driving main shaft.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a front perspective view of the present invention;
FIG. 2 is a rear perspective view of the present invention;
FIG. 3 is a sectional view of a side-view three-dimensional structure of the first piston rod, the limiting frame and the water guide tube according to the present invention;
FIG. 4 is a sectional view showing the side perspective structure of the second piston rod, the gas cylinder and the gas lance in the present invention;
FIG. 5 is a front perspective sectional view of the water storage tank and the annular copper sheet of the present invention;
FIG. 6 is a side perspective view of the purging mechanism of the present invention;
FIG. 7 is a bottom perspective view of the present invention;
fig. 8 is a side perspective view of the lubricating mechanism of the present invention.
The reference numbers in the figure respectively represent 1, a permanent magnet synchronous motor main body; 2. driving the main shaft; 3. a tail machine cover; 4. a motor fan; 5. a water storage tank; 6. connecting the swing rod; 7. a draw bar; 8. a limiting sleeve rod; 9. a limiting frame; 10. a first piston rod; 11. a water guide cylinder; 12. engaging the catheter; 13. a header pipe; 14. a heat absorbing plate; 15. a suction pipe; 16. a connecting rod; 17. a second piston rod; 18. an air guide cylinder; 19. a gas ejector tube; 20. a water injection hole; 21. a housing; 22. an oil collecting tank; 23. an oil filling port; 24. a sponge ring; 25. a connecting pipe; 26. a mounting frame; 27. an on-off valve; 28. an annular copper sheet; 29. a connecting plate; 30. a brush plate; 31. a sleeve; 32. a movable rod; 33. a torsion spring; 34. a threaded sleeve; 35. a rotating drum.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be further described with reference to the following examples.
Example 1
The driving device and the driving method of the permanent magnet synchronous motor in the embodiment are shown in fig. 1, fig. 2 and fig. 3, and comprise a permanent magnet synchronous motor main body 1, a driving main shaft 2, a tail machine cover 3, a motor fan 4 and a pumping and cooling mechanism, wherein the driving main shaft 2 is installed at the left end of the permanent magnet synchronous motor main body 1, the tail machine cover 3 is installed at the right end of the permanent magnet synchronous motor main body 1, the motor fan 4 is installed inside the tail machine cover 3, the motor fan 4 is rotatably connected with the driving main shaft 2, the central shaft of the motor fan 4 is movably connected with the pumping and cooling mechanism, the pumping and cooling mechanism comprises a connecting swing rod 6, the connecting swing rod 6 is rotatably connected with the tail machine cover 3, the left end of the connecting swing rod 6 is fixedly connected with the central shaft of the motor fan 4, and the right end of the connecting swing rod 6 is sleeved with a traction rod 7, the surface cover of traction lever 7 is equipped with spacing loop bar 8, spacing loop bar 8 left side articulates there is first piston rod 10, as shown in fig. 3, the surface cover of first piston rod 10 is equipped with water guide tube 11, the surface cover of first piston rod 10 is equipped with spacing 9, the bottom of spacing 9 and the top fixed connection of tail aircraft bonnet 3, the bottom of water guide tube 11 and the fixed surface of spacing 9 are connected, the left end intercommunication of water guide tube 11 has two sets of linking pipe 12, the bottom intercommunication of linking pipe 12 has pressure manifold 13, the bottom intercommunication of pressure manifold 13 has absorber plate 14, absorber plate 14 is fixed on the surface of PMSM main part 1, the bottom fixed connection of PMSM main part 1 has water storage box 5, the bottom intercommunication suction pipe 15 of absorber plate 14, suction pipe 15 pegs graft in the inside of water storage box 5, water injection hole 20 has been seted up on the top of water storage box 5.
As shown in fig. 5, an annular copper sheet 28 is uniformly installed on the surface of the water storage tank 5, one end of the annular copper sheet 28 is located inside the water storage tank 5, and the other end of the annular copper sheet 28 is located outside the water storage tank 5.
As shown in FIG. 1, a switch valve 27 is installed on the front surface of the water storage tank 5, and the water inlet end of the switch valve 27 is communicated with the water storage tank 5.
In the specific implementation of the embodiment, when the device is started, the main shaft 2 is driven to rotate, the motor fan 4 is driven to rotate, the connecting swing rod 6 is driven to rotate by using the rotating force of the motor fan 4, the connecting swing rod 6 drives the traction rod 7 to rotate, the traction rod 7 slides in the limiting sleeve rod 8 under the traction of the limiting sleeve rod 8, and synchronously drives the first piston rod 10 to reciprocate and extend in the limiting frame 9, so that the first piston rod 10 reciprocates in the water guide cylinder 11, cooling water is injected into the water storage tank 5 through the water injection hole 20 in advance, the first piston rod 10 generates suction force in the moving process, the suction force is transmitted to the heat absorption plate 14 through the connecting guide pipe 12 and the collecting pipe 13, under the action of pressure, the water suction pipe 15 pumps the cooling water in the water storage tank 5 into the heat absorption plate 14, and when the first piston rod 10 is in the reset state, the cooling water in the heat absorption plate 14 flows back to the water storage tank 5 again to exchange heat.
Example 2
In other aspect, this embodiment still provides a clearance mechanism, as shown in fig. 6, the surface of connecting pendulum rod 6 is provided with clearance mechanism, clearance mechanism is used for with be connected pendulum rod 6 synchronous revolution, and clean the surface of motor fan 4, clearance mechanism includes swivel nut 34, swivel nut 34 overlaps on the surface of connecting pendulum rod 6 through the screw thread, the surface of connecting pendulum rod 6 is seted up with the external screw thread of internal thread looks adaptation on the swivel nut 34 inner wall, the fixed surface of swivel nut 34 is connected with movable rod 32, the sliding surface of movable rod 32 is connected with sleeve 31, the fixed surface of sleeve 31 is connected with connecting plate 29, the cover of movable rod 32 is equipped with torsion spring 33, the surface of connecting plate 29 is provided with brush board 30, connecting plate 29 is connected through the bolt with brush board 30.
As shown in fig. 6, one end of the torsion spring 33 is fixedly connected to the surface of the movable rod 32, and the other end of the torsion spring 33 is fixedly connected to the surface of the sleeve 31.
As shown in fig. 6, a surface of the screw boss 34 is fitted with the drum 35, and the screw boss 34 is located on the right side of the surface of the screw boss 34.
This embodiment is when concrete implementation, the rotatable rotary drum 35 of user, make rotary drum 35 drive swivel nut 34 rotatory, under the effect of screw thread, make swivel nut 34 slide on the surface of connecting pendulum rod 6, when brush board 30 contradicts to the filter screen on motor fan 4 surface, make connecting plate 29 drive sleeve 31 and remove, under the cooperation of movable rod 32, extrude torsion spring 33, then the user restarts PMSM main part 1, make it is rotatory to connect pendulum rod 6 to drive swivel nut 34, brush board 30 cleans the filter screen on motor fan 4 surface.
Example 3
In this embodiment, as shown in fig. 4 and 7, the surface of the first piston rod 10 is sleeved with an engaging rod 16, the surface of the engaging rod 16 is fixedly connected with a second piston rod 17, the surface of the second piston rod 17 is sleeved with an air guide cylinder 18, the left end of the air guide cylinder 18 is communicated with an air injection pipe 19, and the bottom end of the air injection pipe 19 is fixedly connected with the surface of the water storage tank 5.
In the embodiment, when the first piston rod 10 is in a reciprocating state, the connecting rod 16 drives the second piston rod 17 to move in the gas cylinder 18, and the second piston rod 17 continuously pumps the gas and injects the gas to the connection of the driving spindle 2 through the gas injection pipe 19.
Example 4
In this embodiment, as shown in fig. 8, the surface of driving main shaft 2 is provided with lubricating mechanism, lubricating mechanism is used for providing the lubrication when driving main shaft 2 is rotatory, lubricating mechanism includes cover 21, cover 21 cover is established on the surface of driving main shaft 2, cover 21 is connected through two sets of mounting brackets 26 with driving main shaft 2, the inside fixedly connected with sponge ring 24 of cover 21, the top intercommunication of cover 21 has connecting pipe 25, connecting pipe 25 pegs graft on the surface of top mounting bracket 26, the top of connecting pipe 25 is provided with oil collecting tank 22, the bottom of oil collecting tank 22 is linked together with the top of connecting pipe 25, oiling mouth 23 has been seted up on the top of oil collecting tank 22.
As shown in fig. 8, one end of the mounting bracket 26 is fixedly connected to the surface of the casing 21, and the other end of the mounting bracket 26 is fixedly connected to the surface of the drive shaft 2.
In this embodiment, when the user is to inject the lubricant into the oil collecting tank 22 through the oil injecting port 23, so that the lubricant flows into the casing 21 through the connecting pipe 25 and permeates into the sponge ring 24, and when the driving spindle 2 rotates, the lubricant of the sponge ring 24 is uniformly smeared at the connecting position of the permanent magnet synchronous motor main body 1 and the driving spindle 2.
Example 5
In this embodiment, a driving method of a permanent magnet synchronous motor is provided, including the following steps:
step1: cooling water is injected into the water storage tank 5 through the water injection hole 20;
step2: starting the permanent magnet synchronous motor main body 1, driving the main shaft 2 to rotate, driving the motor fan 4 to rotate, under the traction of the limit sleeve rod 8, sliding the draw bar 7 in the limit sleeve rod 8, synchronously driving the first piston rod 10 to reciprocate in the water guide cylinder 11, pumping cooling water in the water storage tank 5 into the heat absorption plate 14, and when the first piston rod 10 is in a reset state, reflowing the cooling water in the heat absorption plate 14 to the water storage tank 5 again for heat exchange;
step3: when the first piston rod 10 is in a reciprocating state, the connecting rod 16 drives the second piston rod 17 to move in the gas cylinder 18, and the second piston rod 17 continuously pumps gas and sprays the gas to the connection position of the driving spindle 2 through the gas spraying pipe 19;
step4: when dust needs to be removed, a user can rotate the rotary drum 35, so that when the brush plate 30 collides with a filter screen on the surface of the motor fan 4, the permanent magnet synchronous motor main body 1 is started, the connection swing rod 6 drives the threaded sleeve 34 to rotate, and the brush plate 30 wipes the filter screen on the surface of the motor fan 4;
step5: when the joint of the driving main shaft 2 and the driving main shaft 2 needs to be lubricated, a user can inject lubricating oil into the oil collecting tank 22 through the oil injection port 23, so that the lubricating oil flows into the casing 21 through the connecting pipe 25 and permeates into the sponge ring 24, and after the driving main shaft 2 rotates, the lubricating oil of the sponge ring 24 is uniformly smeared at the joint of the driving main shaft 2 and the driving main shaft 1.
In conclusion, when the device is started, the spindle 2 is driven to rotate, the motor fan 4 is driven to rotate, the connecting swing rod 6 is driven to rotate by utilizing the rotating force of the motor fan 4, the connecting swing rod 6 drives the draw rod 7 to rotate, the draw rod 7 slides in the limiting sleeve rod 8 under the traction of the limiting sleeve rod 8, and synchronously drives the first piston rod 10 to reciprocate and extend in the limiting frame 9, so that the first piston rod 10 reciprocates in the water guide cylinder 11, cooling water is injected into the water storage tank 5 through the water injection hole 20 in advance, the first piston rod 10 generates suction force in the moving process, the suction force is transmitted to the heat absorption plate 14 through the connecting guide pipe 12 and the flow collecting pipe 13, under the action of pressure, the water suction pipe 15 pumps the cooling water in the water storage tank 5 into the heat absorption plate 14, when the first piston rod 10 is in a reset state, the cooling water in the heat absorption plate 14 flows back to the water storage tank 5 again for heat exchange, when the first piston rod 10 is in the reciprocating state, the second piston rod 17 drives the second piston rod 17 to move in the air guide cylinder 18, and the air is continuously pumped to be sprayed to the air injection pipe 19 to be connected with the spindle 2;
under the long-time operation, a certain amount of dust can be accumulated on the filter screen on the surface of the motor fan 4, a user can rotate the rotary drum 35, so that the rotary drum 35 drives the threaded sleeve 34 to rotate, the threaded sleeve 34 slides on the surface of the connecting swing rod 6 under the action of the threads, when the brush plate 30 is abutted against the filter screen on the surface of the motor fan 4, the connecting plate 29 drives the sleeve 31 to move, the torsion spring 33 is extruded under the cooperation of the movable rod 32, then the user starts the permanent magnet synchronous motor main body 1 again, so that the connecting swing rod 6 drives the threaded sleeve 34 to rotate, and the brush plate 30 wipes the filter screen on the surface of the motor fan 4;
when a user needs to lubricate the joint of the driving main shaft 2 and the permanent magnet synchronous motor main body 1, the user can inject lubricating oil into the oil collecting tank 22 through the oil injection port 23, so that the lubricating oil flows into the casing 21 through the connecting pipe 25 and permeates into the sponge ring 24, and after the driving main shaft 2 rotates, the lubricating oil of the sponge ring 24 is uniformly smeared at the joint of the permanent magnet synchronous motor main body 1 and the driving main shaft 2.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (9)
1. The utility model provides a PMSM drive arrangement, includes PMSM main part (1), drive spindle (2), tail cover (3), motor fan (4) and takes out and press cooling mechanism, drive spindle (2) are installed to the left end of PMSM main part (1), tail cover (3) are installed to the right-hand member of PMSM main part (1), the internally mounted of tail cover (3) has motor fan (4), motor fan (4) rotate with drive spindle (2) and are connected, the center pin of motor fan (4) with take out and press cooling mechanism swing joint, its characterized in that, take out and press cooling mechanism including connecting pendulum rod (6), connecting pendulum rod (6) and tail cover (3) rotate and be connected, the left end of connecting pendulum rod (6) and the center pin fixed connection of motor fan (4), the right-hand member cover of connecting pendulum rod (6) is equipped with traction lever (7), the surface cover of traction lever (7) is equipped with spacing loop bar (8), spacing loop bar (8) left side articulates there is first piston rod (10), the surface cover of first piston rod (10) is equipped with the guide rod (9) surface of tail cover, the piston rod (9) is equipped with the spacing frame (9) top, the piston rod (9) is connected the piston rod (9), the bottom end of the water guide cylinder (11) is fixedly connected with the surface of the limiting frame (9), the left end of the water guide cylinder (11) is communicated with two groups of connecting pipes (12), the bottom ends of the connecting pipes (12) are communicated with a collecting pipe (13), the bottom end of the collecting pipe (13) is communicated with a heat absorbing plate (14), the heat absorbing plate (14) is fixed on the surface of the permanent magnet synchronous motor main body (1), the bottom end of the permanent magnet synchronous motor main body (1) is fixedly connected with a water storage tank (5), the bottom end of the heat absorbing plate (14) is communicated with a water absorbing pipe (15), the water absorbing pipe (15) is inserted into the water storage tank (5), and the top end of the water storage tank (5) is provided with a water injection hole (20);
the surface of the first piston rod (10) is sleeved with a joint rod (16), the surface of the joint rod (16) is fixedly connected with a second piston rod (17), the surface of the second piston rod (17) is sleeved with an air guide cylinder (18), the left end of the air guide cylinder (18) is communicated with an air injection pipe (19), and the bottom end of the air injection pipe (19) is fixedly connected with the surface of the water storage tank (5);
the surface of the driving spindle (2) is provided with a lubricating mechanism, and the lubricating mechanism is used for providing lubrication when the driving spindle (2) rotates;
the cleaning device is characterized in that a cleaning mechanism is arranged on the surface of the connecting swing rod (6), and the cleaning mechanism is used for synchronously rotating with the connecting swing rod (6) and cleaning the surface of the motor fan (4).
2. The permanent magnet synchronous motor driving device according to claim 1, wherein the surface of the water storage tank (5) is uniformly provided with an annular copper sheet (28), one end of the annular copper sheet (28) is positioned inside the water storage tank (5), and the other end of the annular copper sheet (28) is positioned outside the water storage tank (5).
3. The PMSM drive device according to claim 1, wherein a switch valve (27) is installed on the front face of the water storage tank (5), and the water inlet end of the switch valve (27) is communicated with the water storage tank (5).
4. The driving device of the permanent magnet synchronous motor according to claim 1, wherein the lubricating mechanism comprises a casing (21), the casing (21) is sleeved on the surface of the driving spindle (2), the casing (21) is connected with the driving spindle (2) through two sets of mounting frames (26), a sponge ring (24) is fixedly connected inside the casing (21), a connecting pipe (25) is communicated with the top end of the casing (21), the connecting pipe (25) is inserted into the surface of the top mounting frame (26), an oil collecting tank (22) is arranged at the top end of the connecting pipe (25), the bottom end of the oil collecting tank (22) is communicated with the top end of the connecting pipe (25), and an oil filling opening (23) is formed in the top end of the oil collecting tank (22).
5. A PMSM drive device according to claim 4, characterised in that one end of the mounting bracket (26) is fixedly connected to the surface of the casing (21) and the other end of the mounting bracket (26) is fixedly connected to the surface of the drive shaft (2).
6. The driving device of the permanent magnet synchronous motor according to claim 1, wherein the clearing mechanism comprises a threaded sleeve (34), the threaded sleeve (34) is sleeved on the surface of the connecting swing rod (6) through threads, external threads matched with the internal threads on the inner wall of the threaded sleeve (34) are arranged on the surface of the connecting swing rod (6), a movable rod (32) is fixedly connected to the surface of the threaded sleeve (34), a sleeve (31) is slidably connected to the surface of the movable rod (32), a connecting plate (29) is fixedly connected to the surface of the sleeve (31), a torsion spring (33) is sleeved on the surface of the movable rod (32), a brush plate (30) is arranged on the surface of the connecting plate (29), and the connecting plate (29) is connected with the brush plate (30) through bolts.
7. The PMSM drive device according to claim 6, wherein one end of the torsion spring (33) is fixedly connected with the surface of the movable rod (32), and the other end of the torsion spring (33) is fixedly connected with the surface of the sleeve (31).
8. The PMSM drive according to claim 6, characterized in that a drum (35) is sleeved on the surface of the screw sleeve (34), and the screw sleeve (34) is located on the right side of the surface of the screw sleeve (34).
9. A driving method of a permanent magnet synchronous motor is characterized by comprising the following steps:
step1: cooling water is injected into the water storage tank (5) through the water injection hole (20);
step2: the method comprises the steps that a permanent magnet synchronous motor main body (1) is started, a main shaft (2) is driven to rotate, a motor fan (4) is driven to rotate, a draw bar (7) slides in a limiting sleeve rod (8) under the traction of the limiting sleeve rod (8), a first piston rod (10) is synchronously driven to reciprocate in a water guide cylinder (11), cooling water in a water storage tank (5) is pumped into a heat absorption plate (14), and when the first piston rod (10) is in a reset state, the cooling water in the heat absorption plate (14) flows back to the water storage tank (5) again to exchange heat;
step3: when the first piston rod (10) is in a reciprocating state, the second piston rod (17) is driven to move in the gas cylinder (18) through the connecting rod (16), and the gas is continuously pumped by the second piston rod (17) and is sprayed to the connecting part of the driving main shaft (2) through the gas spraying pipe (19);
step4: when dust needs to be removed, a user can rotate the rotary drum (35) to enable the brush plate (30) to abut against a filter screen on the surface of the motor fan (4), then the permanent magnet synchronous motor main body (1) is started, the connection swing rod (6) drives the threaded sleeve (34) to rotate, and the brush plate (30) wipes the filter screen on the surface of the motor fan (4);
step5: when the connection position of the driving main shaft (2) and the permanent magnet synchronous motor main body (1) needs to be lubricated, a user can inject lubricating oil into the oil collecting tank (22) through the oil injection port (23), so that the lubricating oil flows into the sleeve shell (21) through the connecting pipe (25) and permeates into the sponge ring (24), and after the driving main shaft (2) rotates, the lubricating oil of the sponge ring (24) is uniformly smeared at the connection position of the permanent magnet synchronous motor main body (1) and the driving main shaft (2).
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Cited By (1)
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| CN117294079A (en) * | 2023-10-17 | 2023-12-26 | 江苏杰特机电科技有限公司 | Permanent magnet synchronous motor driving device |
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| CN115566856B (en) | 2023-09-19 |
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Denomination of invention: A permanent magnet synchronous motor drive device Effective date of registration: 20231211 Granted publication date: 20230919 Pledgee: Bank of Jiangsu Co.,Ltd. Changzhou Branch Pledgor: Changzhou samid Electromechanical Equipment Co.,Ltd. Registration number: Y2023980070606 |