CN116493688B - Tooth surface efficient grinding machine for noise reduction gear - Google Patents
Tooth surface efficient grinding machine for noise reduction gear Download PDFInfo
- Publication number
- CN116493688B CN116493688B CN202310762678.2A CN202310762678A CN116493688B CN 116493688 B CN116493688 B CN 116493688B CN 202310762678 A CN202310762678 A CN 202310762678A CN 116493688 B CN116493688 B CN 116493688B
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- Prior art keywords
- tooth
- sleeve
- fluted disc
- shaft sleeve
- abrasive
- Prior art date
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- 238000000227 grinding Methods 0.000 title claims abstract description 68
- 230000009467 reduction Effects 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 238000003825 pressing Methods 0.000 claims abstract description 31
- 238000004891 communication Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 10
- 239000003082 abrasive agent Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000012545 processing Methods 0.000 description 12
- 239000002245 particle Substances 0.000 description 11
- 238000005498 polishing Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 229910052580 B4C Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
- B23F19/02—Lapping gear teeth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to the technical field of gear grinding equipment, in particular to a tooth surface efficient grinding machine for a noise reduction gear, which comprises a frame, an inner tooth sleeve, a rotary shaft sleeve, a transmission fluted disc and an upper pressing disc, wherein the frame comprises a bottom mounting plate, an outer sleeve and an upper cover, a tooth sleeve stepped hole is formed above the inner tooth part, the rotary shaft sleeve is rotatably mounted on the bottom mounting plate, the tooth profile of the transmission fluted disc is slightly larger than a product to be processed, the product is clamped between the transmission fluted disc and the upper pressing disc and is sleeved on the rotary shaft sleeve together with the transmission fluted disc and the upper pressing disc, a plurality of grinding agent injection holes are formed in the tooth roots or tooth tips of the inner tooth part and are communicated with the outer circle of the inner tooth sleeve in an array, a communicating groove is formed in the position on the inner wall of the outer sleeve, and the upper cover is covered on the outer sleeve, so that the tooth surface is finished effectively, the product is convenient to clean, the grinding loss is reduced, the grinding efficiency is high, the system stability is good, the production efficiency is high, and the reliability is high.
Description
Technical Field
The invention relates to the technical field of gear grinding equipment, in particular to a tooth surface efficient grinding machine for a noise reduction gear.
Background
Noise reduction gears are commonly used in transmission mechanisms where noise reduction of the system is desired. The gears are subjected to impact load to generate vibration in the meshing process, so that noise is excited. The system noise reduction can be achieved by eliminating the rule side gap during engagement and using a gapless gear engagement state. Non-metallic materials or composite materials with larger damping can be used for manufacturing the noise reduction gear in general, but the gear used in the occasion of high strength or high temperature can only be made of metal materials. In addition, the surface of the metal gear is worn in the using process, the gear meshing clearance error is increased, and the system noise is also increased. In order to reduce the engagement noise of the metal gear, the processing precision and the assembly precision of the gear are required to be improved, including the precision, the smoothness and the wear resistance of the tooth surface of the gear, so that the good engagement state of the gear in the service life period is ensured, and the engagement noise is reduced. After finish milling and hardening treatment, the noise reduction gear is required to grind or directly grind and polish the tooth surface, so that the gear surface precision is improved, and the contact condition of the tooth surface is improved. However, in the conventional grinding and polishing process, due to the irregularity of the tooth shape of the gear, the polishing and removing allowance of each position of the tooth surface is different when the gear fluid polishing machine polishes, and the polishing requirement of a high-precision gear cannot be ensured. Moreover, the gear lapping machine can only be used for single-piece processing generally, the processing time is long, and the production requirement of a large number of gears cannot be met. The abrasive flow grinding process provides a novel grinding and polishing processing means for the gear tooth surface.
The common abrasive flow grinding equipment and the corresponding tooling structure are complex, the use is inconvenient, the special tooling is needed, and generally only one gear can be processed at a time, so that the production efficiency is low. Because the common abrasive flow has higher abrasive viscosity, more residues exist in the parts, the abrasion loss is high, and the cleaning difficulty after the parts are processed is high, thereby influencing the popularization of the process.
The invention patent with the application number of 20193254936.X discloses a gear tooth surface abrasive flow finishing processing method and device scheme of a meshing extrusion gear, and aims to solve the technical problems of high surface finishing processing cost and complex technical means of the existing gear. The gear box is fixed on the rack, two bearings are mounted on the side wall of the gear box, a driving rotating shaft and a driven rotating shaft are respectively sleeved in the two bearings, the driving rotating shaft and the driven rotating shaft are used for mounting a pair of gears to be polished, the relative positions of the driving rotating shaft and the driven rotating shaft ensure that the two gears to be polished are meshed with each other, and a motor for driving the driving rotating shaft to rotate is connected in a transmission manner; the automatic polishing machine is characterized by further comprising a material cylinder fixed above the gear box, wherein the material cylinder is used for accommodating fluid abrasive materials, a blanking opening is formed in the bottom of the material cylinder, and the blanking opening is positioned right above the meshing position of the two gears to be polished. The device has partially promoted gear abrasive flow grinds machining efficiency, still can not satisfy the high-efficient grinding production needs of big batch gear.
The invention patent with application number 201010615787.4 discloses an internal gear pair vibrating grinder, which utilizes grinding agents and high-frequency vibration to grind inner and outer gears simultaneously, and the whole grinder adopts a three-beam four-column frame structure, and the main motions, namely the planetary rotation of the external gear and the axial vibration of the internal gear, are respectively completed by two parts of devices. The external gear revolves around the axis of the internal gear under the drive of a motor-synchronous belt and rotates around the axis of the external gear under the meshing action with the internal gear; the internal gear is fixed on the vibration platform and driven by the motor, the synchronous belt and the eccentric mechanism to do axial high-frequency vibration. The tooth surfaces of the inner gear and the outer gear slide relatively under the meshing and vibration actions, and the relative grinding of the tooth surfaces can be realized after the grinding agent is introduced. The inner gear pair and the outer gear pair do meshing motion, finish machining of the inner gear and the outer gear is finished at the same time, and gear grinding machining is not needed respectively; the relative axial high-frequency vibration of the inner gear and the outer gear is introduced, so that the grinding processing effect is greatly improved; the elastic contact of the inner tooth surface and the outer tooth surface is realized by the adjusting mechanism, the contact pressure is adjustable, the tooth surfaces on the two sides are simultaneously contacted and ground, and the processing efficiency can be greatly improved. The equipment also has the problems that only single-group processing is carried out and the equipment cannot adapt to mass processing.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a high-efficiency tooth surface grinding machine for a noise reduction gear.
The technical scheme adopted for solving the technical problems is as follows: the high-efficiency tooth surface grinding machine for the noise reduction gear comprises a frame, an inner tooth sleeve, a rotary shaft sleeve, a transmission fluted disc and an upper pressing disc, wherein the frame comprises a bottom mounting plate, an outer sleeve and an upper cover, the outer sleeve is fixedly arranged on the bottom mounting plate, the inner tooth sleeve is rotatably arranged in a hole of the outer sleeve, an inner tooth part is arranged on the inner wall of the inner tooth sleeve, the bottom surface of the inner tooth sleeve is abutted to the bottom mounting plate, a tooth sleeve step hole is arranged above the inner tooth part, the rotary shaft sleeve is rotatably arranged on the bottom mounting plate, the tooth profile of the transmission fluted disc is slightly larger than a product to be processed, the product is clamped between the transmission fluted disc and the upper pressing disc and is sleeved on the rotary shaft sleeve together with the transmission fluted disc and the upper pressing disc, the bottom surface of the upper pressing disc is slightly higher than the shoulder surface of the tooth sleeve step hole, the outer circle of the upper pressing disc is larger than the maximum outer tooth circle of the upper pressing disc, the outer circle of the rotary shaft sleeve is axially provided with a transmission key, the transmission fluted disc and the product are connected with the rotary shaft sleeve through the transmission key, the transmission fluted disc is connected with a rotary driving assembly, the external teeth of the transmission fluted disc and the upper pressing disc are meshed with the internal tooth part, a gap for accommodating abrasive is formed between the external teeth of the product and the internal tooth part, a plurality of abrasive injection holes are formed in the tooth root or the tooth tip of the internal tooth part and are communicated with the outer circle of the internal tooth sleeve in an array manner, the abrasive injection holes are used for injecting abrasive into the gap between the external teeth of the product and the internal tooth part, a communication groove is formed in the inner wall of the outer sleeve and is opposite to the rotary shaft sleeve, the communication groove is used for supplying abrasive to at least one row of abrasive injection holes in the vertical direction, at least one abrasive injection hole communicated with the communication groove is formed in the outer sleeve, the abrasive injection hole is connected with an abrasive pumping device, the bottom of bottom mounting panel is equipped with the abrasive reflux mouth that is used for retrieving the abrasive, abrasive reflux mouth connects abrasive recovery unit, the upper cover lid closes on the outer sleeve, and with the top surface sealing contact of internal tooth cover.
According to another embodiment of the invention, the rotary shaft sleeve is provided with at least two rotary shaft sleeves along the axis circumference array of the bottom mounting plate, and the transmission fluted disc and the upper pressure disc are correspondingly arranged in groups.
According to another embodiment of the present invention, the rotary driving assembly further includes a driving motor, a toothed belt, and a driving gear shaft, wherein the driving motor is fixedly installed on the frame, the driving gear shaft is rotatably installed in the middle of the bottom mounting plate, a tooth portion of the driving gear shaft is meshed with the transmission fluted disc, a shaft portion of the driving gear shaft is rotatably installed in the bottom mounting plate and extends out from the lower portion of the bottom mounting plate, and a shaft portion of the driving gear shaft is connected with the driving motor through the toothed belt.
According to another embodiment of the invention, the rotary shaft sleeve is sleeved on the shaft sleeve guide post.
According to another embodiment of the invention, the upper cover is provided with a first positioning hole right above the shaft sleeve guide post, a positioning shaft is inserted into the first positioning hole, and the lower end of the positioning shaft penetrates through the upper cover and is inserted into a second positioning hole at the top of the shaft sleeve guide post.
According to another embodiment of the invention, further comprising a lifting plate moving up and down is arranged below the bottom mounting plate, the lower end of the rotating shaft sleeve is rotatably arranged on the lifting plate, a supporting tray is fixedly arranged on the rotating shaft sleeve, a supporting tray groove for accommodating the supporting tray is arranged on the top surface of the transmission fluted disc, and the lower end of the shaft sleeve guide post penetrates through the lifting plate.
According to another embodiment of the present invention, the lifting plate is further connected to a lifting driving assembly, and the lifting driving assembly includes a lifting motor, a screw rod and a screw nut, wherein the lifting motor is fixedly installed on the lower mounting plate, and the screw nut is fixedly installed on the lifting plate.
According to another embodiment of the invention, the top of the rotary shaft sleeve is provided with connecting threads, and the locking ring is installed on the top of the rotary shaft sleeve in a threaded connection manner above the upper pressure plate.
According to another embodiment of the present invention, further comprising, a pressing boss is provided on a bottom surface of the upper cover, and a bottom surface of the pressing boss abuts against a top surface of the upper platen.
The beneficial effects of the invention are as follows:
the high-efficiency grinding production of a large number of disc gears is realized, the grinding agent is pumped into the device by utilizing the principle of extrusion grinding of abrasive particle flow, the grinding agent flows out rapidly along the gap between the gear product and the inner tooth part, the grinding agent flowing at high speed continuously scours the tooth surface of the gear product, the inner tooth sleeve and the product synchronously rotate, each tooth of the product is sequentially ground, the effective flow passage of the grinding agent is long, the allowance of the product removed by grinding is uniform and good in consistency, the finishing effect of the tooth surface is effectively ensured, and the grinding efficiency is high.
After finishing grinding, the silicon oil mixed solution without abrasive particles can be injected from the grinding agent injection port to wash and clean the product, so that the abrasive particle residue on the surface of the product is removed, the product is convenient to clean, and the grinding agent loss is reduced.
The grinding agent containing high-hardness abrasive particles can be used for flexibly grinding and polishing the tooth surface of the high-hardness gear, the removed allowance is small, and the hardness and the wear resistance of the tooth surface of the product are effectively ensured.
The grinding system is mainly mechanically driven, a group of rotary driving components drive a plurality of groups of products to grind and polish, the system stability is good, the production efficiency is high, and the reliability is high.
The product is convenient to feed and discharge, and the production efficiency is effectively improved.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic cross-sectional view at A-A of FIG. 1;
FIG. 3 is an enlarged view at X in FIG. 2;
FIG. 4 is an enlarged view at Y in FIG. 2;
FIG. 5 is a schematic top view of the cover with parts removed;
FIG. 6 is a partial schematic view of the product interfacing with the internal teeth;
in the drawing, a frame 1, a bottom mounting plate 11, an abrasive return port 111, a return groove 112, an outer sleeve 12, a communication groove 121, an abrasive injection port 122, an overhanging table 123, an upper cover 13, a column 14, a lower mounting plate 15, a lifting plate 16, an inner gear sleeve 2, an inner gear part 21, an abrasive injection hole 22, a gear sleeve stepped hole 23, a product 3, a rotary shaft sleeve 4, a support tray 41, a locking ring 42, a support flange 43, a flange mounting sleeve 44, a transmission fluted disc 5, an upper platen 6, a shaft sleeve guide post 7, a positioning shaft 71, a rotary driving assembly 8, a driving motor 81, a toothed belt 82, a driving toothed shaft 83, a lifting driving assembly 9, a lifting motor 91, a screw 92, and a screw nut 93.
Detailed Description
Referring to fig. 1-6, a high-efficiency tooth surface grinder for a noise reduction gear comprises a frame 1, an inner gear sleeve 2, a rotary shaft sleeve 4, a transmission fluted disc 5 and an upper pressure disc 6, wherein the frame 1 comprises a bottom mounting plate 11, an outer sleeve 12 and an upper cover 13, the outer sleeve 12 is fixedly mounted on the bottom mounting plate 11, the inner gear sleeve 2 is rotatably mounted in a hole of the outer sleeve 12, an inner gear part 21 is arranged on the inner wall of the inner gear sleeve, the bottom surface of the inner gear sleeve is abutted against the bottom mounting plate 11, a gear sleeve stepped hole 23 is arranged above the inner gear part 21, the rotary shaft sleeve 4 is rotatably mounted on the bottom mounting plate 11, the profile of the transmission fluted disc 5 is slightly larger than that of a product 3 to be processed, the product 3 is clamped between the transmission fluted disc 5 and the upper pressure disc 6 and is sleeved on the rotary shaft sleeve 4 together with the transmission fluted disc 5 and the upper pressure disc 6, the bottom surface of the upper pressing plate 6 is slightly higher than the shoulder surface of the gear sleeve step hole 23, the outer circle of the upper pressing plate 6 is larger than the largest outer circle of the outer teeth of the upper pressing plate 6, a transmission key is arranged on the outer circle of the rotary shaft sleeve 4 along the axial direction, the transmission fluted disc 5 and the product 3 are connected with the rotary shaft sleeve 4 through the transmission key, the transmission fluted disc 5 is connected with a rotary driving component 8, the outer teeth of the transmission fluted disc 5 and the upper pressing plate 6 are meshed with the inner tooth part 21, a gap for containing abrasive is formed between the outer teeth of the product 3 and the inner tooth part 21, a plurality of abrasive injection holes 22 are arranged on the tooth root or the tooth tip of the inner tooth part 21 and are communicated with the outer circle of the inner tooth sleeve 2, the abrasive injection holes 22 are used for injecting abrasive into the gap between the outer teeth of the product 3 and the inner tooth part 21, a communicating groove 121 is arranged on the inner wall of the outer sleeve 12 and opposite to the rotary shaft sleeve 4, the communication groove 121 is used for supplying abrasives to at least one row of vertical abrasive injection holes 22, at least one abrasive injection opening 122 communicated with the communication groove 121 is arranged on the outer sleeve 12, the abrasive injection opening 122 is connected with an abrasive pumping device, an abrasive return opening 111 used for recycling abrasives is arranged at the bottom of the bottom mounting plate 11, the abrasive return opening 111 is connected with an abrasive recycling device, and the upper cover 13 covers the outer sleeve 12 and is in sealing contact with the top surface of the inner gear sleeve 2.
The grinding agent is a mixed liquid composed of silicone oil, a plasticizer, abrasive particles and the like, and the abrasive particles are boron carbide or silicon carbide particles with different granularity. The ultra-high-hardness boron carbide or silicon carbide particles flexibly grind and polish the tooth surface of the high-hardness gear, the removed allowance is small, and the hardness and the wear resistance of the tooth surface of the product are effectively ensured.
The abrasive recovery device is provided with a liquid storage tank which is in butt joint with the abrasive return port 111. And a filtering and adsorbing device is arranged in the liquid storage tank to clean scrap iron in the grinding agent. The abrasive pumping device comprises an abrasive stirring assembly, a driving pump and an overflow valve, so that the uniformly stirred abrasive is injected into the communication groove 121 under high pressure. Abrasive particles settle in the liquid storage tank, the abrasive pumping device absorbs the abrasive from the bottom of the liquid storage tank in proportion through the control valve, and absorbs the silicone oil from the filter box above the liquid storage tank to form the uniformly mixed abrasive to grind the product 3, or only absorbs the silicone oil to wash the product 3.
The transmission key of the rotary shaft sleeve 4 is set as a flat key or a spline according to the key groove type of the product 3.
The number of the abrasive injection ports 122 is 2-3 from top to bottom, and at least one abrasive injection port is provided near the bottom of the communicating groove 121. By providing the plurality of abrasive injection ports 122, the abrasive flowing in the communication groove 121 is made more uniform, the abrasive component injected in the abrasive injection holes 22 is made more uniform, and the polishing precision and consistency of the upper and lower products 3 are ensured.
A plurality of end face thrust bearings and common axial bearings are arranged between the inner tooth sleeve 2 and the bottom mounting plate 11 and between the inner tooth sleeve 2 and the outer sleeve 12, so that the mounting precision of the inner tooth sleeve 2 is ensured, and the rotation resistance of the inner tooth sleeve 2 is reduced. A plurality of sealing rings are arranged between the inner tooth sleeve 2 and the bottom mounting plate 11 and between the inner tooth sleeve 2 and the outer sleeve 12, so that the sealing in the mounting gap is ensured, and the leakage of grinding agents is prevented.
The internal tooth sleeve 2 can be an assembly and is formed by assembling a plurality of fluted discs and discs at two ends, so that the manufacturing difficulty is reduced, and the structural design of the internal tooth sleeve 2 is facilitated. The tooth shapes of the inner tooth part 21 and the transmission fluted disc 5 are in nonstandard arrangement, the main outline of the transmission fluted disc 5 is 0.5-2mm larger than the outline size of the product 3, and a gap of 0.5-2mm is reserved at the minimum gap between the inner tooth part 21 and the tooth surface of the product 3.
The surface of the inner tooth part 21 of the inner tooth sleeve 2 is subjected to polishing and hardening treatment, such as surface coating hardening treatment, so that the surface wear resistance of the inner tooth sleeve is improved, and the abutting precision of the inner tooth sleeve and the product 3 is ensured.
The outer circle of the inner gear sleeve 2 is abutted against the inner hole of the outer sleeve 12, and only the grinding agent injection holes 22 turned to the communicating groove 121 are communicated with the communicating groove 121, and the other grinding agent injection holes 22 are in a sealed state. The periphery of the communication groove 121 may be provided with a sealing groove and a sealing ring, the sealing ring is abutted against the outer circle of the inner gear sleeve 2, so that the friction force between the inner gear sleeve 2 and the outer sleeve 12 is reduced while the sealing is ensured.
The transmission key of the rotary shaft sleeve 4 not only can drive the product 3 to rotate, but also can provide a positioning function for the product 3, so that the tooth surface distance between the tooth surface of the rotary shaft sleeve and the tooth surface of the internal tooth part 21 is kept consistent.
The top surface of the bottom mounting plate 11 is provided with a reflux groove 112 at the position of the abrasive reflux opening 111, so that the abrasive is refluxed as soon as possible, and the abrasion influence of the abrasive on the transmission fluted disc 5 is reduced.
The upper cover 13 is connected with the outer sleeve 12 through bolt fastening. The outer sleeve 12 is provided with an overhanging platform 123, the upper cover 13 is rotatably arranged on the overhanging platform 123, the overhanging platform 123 provides support and positioning for the upper cover 13, and when the upper cover 13 rotates one hundred eighty degrees to the overhanging platform 123, the upper opening of the outer sleeve 12 is completely opened, and the overhanging platform 123 is arranged to facilitate the opening and closing of the upper cover 13.
The outer circle of the upper pressing plate 6 can be in small clearance fit with the hole of the gear sleeve step hole 23, which is equivalent to an inner cover, and is directly covered above the grinding area, and a good sealing state is formed between the outer circle and the gear sleeve step hole 23. At the same time, the upper pressure plate 6 can provide positioning and support for the rotary shaft sleeve 4, and the rigidity of the rotary shaft sleeve is improved.
During processing, the product 3 is sleeved on the rotary shaft sleeve 4 in sequence, then the upper pressing plate 6 is fixedly locked, and a small gap is reserved between the bottom surface of the upper pressing plate 6 and the shoulder surface of the gear sleeve step hole 23. And then the upper cover 13 is covered. The transmission fluted disc 5 is driven to rotate through the rotary driving assembly 8, and the transmission fluted disc 5 drives the rotary shaft sleeve 4 and the product 3 to rotate on one hand and drives the inner gear sleeve 2 to rotate on the other hand. Simultaneously, high-pressure abrasive is pumped from the abrasive inlet 122, and the abrasive is injected into the gap between the product 3 and the internal teeth portion 21 from the abrasive injection hole 22 through the communication groove 121, flows out from both sides of the product 3, and finally is sucked back to the abrasive recovery device from the abrasive return port 111. When the product 3 and the inner gear sleeve 2 synchronously rotate, a vertical row of grinding agent injection holes 22 on the inner gear sleeve 2 are intermittently communicated with the communication groove 121, grinding agent continuously carries out continuous spraying polishing on each tooth surface of the product 3, and the more the number of rotation turns of the product 3 is, the better the polishing uniformity is. By utilizing the characteristic of meshing of the internal teeth and the external teeth, the tooth surface gap forms an extrusion grinding runner, the effective length of the grinding runner is longer, and the grinding agent repeatedly commutates and impacts in the grinding runner, so that the grinding efficiency is greatly improved. After finishing the grinding treatment, the silicon oil mixed solution without abrasive particles is pumped from the abrasive injection port 122 to wash and clean the product 3, so that the abrasive particles on the surface of the product 3 are removed, the surface cleaning of the product 3 is facilitated, and the abrasive loss is reduced.
The communicating groove 121 is only communicated with one or two vertical abrasive injection holes 22 at the same time, so that the flow speed and pressure of the abrasives in the abrasive injection holes 22 are ensured, meanwhile, the abrasive injection holes 22 at different positions are intermittently communicated or separated from the communicating groove 121, a pulse injection effect can be generated in the abrasive injection holes 22, the scouring force of the abrasives on the tooth surfaces of the product 3 is improved, and the grinding efficiency is improved.
By batch processing of the product 3, the grinding efficiency is greatly improved under the condition of ensuring the grinding effect.
Before machining, the products 3 can be grouped according to the number of one group during grinding, and the total thickness of one group is controlled so as to control the clearance value between the bottom surface of the upper pressure plate 6 and the shoulder surface of the gear sleeve step hole 23.
Preferably, the rotary shaft sleeve 4 is provided with at least two rotary shaft sleeves along the axis circumference array of the bottom mounting plate 11, and the transmission fluted disc 5 and the upper pressing disc 6 are correspondingly arranged in groups.
The smaller the difference in number of teeth between the internal teeth portion 21 and the product 3 is, the longer the grinding flow path is, and the higher the grinding efficiency is. But further, can set up multiunit swivel bush 4 and drive fluted disc 5, grind the processing to multiunit product 3 simultaneously, can improve grinding efficiency equally, interior tooth cover 2 atress is more balanced moreover, and the operation is more stable.
Preferably, the rotary driving assembly 8 comprises a driving motor 81, a toothed belt 82 and a driving gear shaft 83, the driving motor 81 is fixedly installed on the frame 1, the driving gear shaft 83 is rotatably installed in the middle of the bottom mounting plate 11, the gear part of the driving gear shaft 83 is meshed with the transmission fluted disc 5, the shaft part of the driving gear shaft 83 is rotatably installed in the bottom mounting plate 11 and extends out from the lower side of the bottom mounting plate 11, and the shaft part of the driving gear shaft 83 is connected with the driving motor 81 through the toothed belt 82.
One side of the bottom mounting plate 11 extends outwards to form a bracket for mounting the driving motor 81.
The plurality of transmission fluted discs 5 can be driven simultaneously through the driving gear shaft 83 arranged at the center of the bottom mounting plate 11, the transmission path is short, and the transmission efficiency is high. At the same time, a guiding wheel can be arranged to guide the transmission route of the toothed belt 82, so as to avoid interference with other components.
Preferably, a lower mounting plate 15 and a plurality of upright posts 14 are arranged below the bottom mounting plate 11, a shaft sleeve guide post 7 is fixedly mounted on the lower mounting plate 15, and the rotary shaft sleeve 4 is sleeved on the shaft sleeve guide post 7.
The upright posts 14 are provided in plurality as required.
By providing the sleeve guide post 7, the rigidity of the rotary sleeve 4 is improved. When the product 3 and the inner tooth part 21 are subjected to high-pressure grinding agent, the single side of the rotary shaft sleeve 4 is stressed, so that the elastic deformation of the overhanging end of the rotary shaft sleeve 4 is reduced, the uniformity of the tooth surface distance between the product 3 and the inner tooth part 21 is ensured, and the consistency of the grinding effect is ensured. The length of the rotary shaft sleeve 4 can be lengthened, and the number of single-group products 3 on one rotary shaft sleeve 4 can be increased. The rotary shaft sleeve 4 is in small clearance fit with the shaft sleeve guide post 7.
Preferably, a first positioning hole is formed in the upper cover 13 and located right above the shaft sleeve guide post 7, a positioning shaft 71 is inserted into the first positioning hole, and the lower end of the positioning shaft 71 passes through the upper cover 13 and is inserted into a second positioning hole at the top of the shaft sleeve guide post 7.
The positioning shaft 71 is coaxially arranged with the axis of the shaft sleeve guide post 7 and is in small clearance fit with the first positioning hole and the second positioning hole. After the upper cover 13 is fixedly installed, the shaft sleeve guide posts 7 are inserted, so that the rigidity of the rotary shaft sleeve 4 is further improved, and the stress deformation of the rotary shaft sleeve is reduced. After the grinding treatment, the sleeve guide posts 7 are removed, and then the upper cover 13 is opened. The shaft sleeve guide post 7 is convenient to assemble and disassemble.
Preferably, a lifting plate 16 moving up and down is arranged below the bottom mounting plate 11, the lower end of the rotary shaft sleeve 4 is rotatably mounted on the lifting plate 16, a supporting tray 41 is fixedly arranged on the rotary shaft sleeve 4, a supporting tray groove for accommodating the supporting tray 41 is arranged on the top surface of the transmission fluted disc 5, and the lower end of the shaft sleeve guide post 7 penetrates through the lifting plate 16.
Through setting up lifter plate 16, drive rotatory axle sleeve 4 reciprocates, makes things convenient for product 3 to go up the unloading. During feeding, the lifting plate 16 drives the rotary shaft sleeve 4 to lift and approach the mouth part of the inner gear sleeve 2, so that the feeding of the product 3 is facilitated, and the bottom surface of the lowermost product 3 is abutted against the supporting tray 41. After the feeding is completed, the lifting plate 16 drives the rotary shaft sleeve 4 to descend until the bottom surface of the lowest product 3 abuts against the transmission fluted disc 5, and then grinding treatment is prepared. During blanking, the lifting plate 16 drives the rotary shaft sleeve 4 to lift and approach the mouth part of the inner gear sleeve 2, so that the product 3 is convenient to be blanked. The product is convenient to feed and discharge, and the production efficiency is effectively improved.
The lower end of the rotary shaft sleeve 4 is provided with a support flange 43, an end face thrust bearing is arranged between the support flange 43 and the lifting plate 16, the support flange 43 is connected with the lifting plate 16 through a flange mounting sleeve 44, and the end face thrust bearing is positioned in the flange mounting sleeve 44.
Preferably, the lifting plate 16 is connected with the lifting driving assembly 9, the lifting driving assembly 9 comprises a lifting motor 91, a screw rod 92 and a screw rod nut 93, the lifting motor 91 is fixedly installed on the lower mounting plate 15, and the screw rod nut 93 is fixedly installed on the lifting plate 16.
The lifting motor 91 is a servo motor. The top end of the screw 92 can be inserted into the end surface hole of the driving gear shaft 83 and supported by a bearing, so that the installation rigidity of the screw 92 is improved.
Preferably, the top of the rotating shaft sleeve 4 is provided with connecting threads, and a locking ring 42 is mounted on the rotating shaft sleeve in a threaded connection manner above the upper pressure plate 6.
The rotary shaft sleeve 4, the transmission fluted disc 5, the product 3 and the upper pressing disc 6 are locked into a whole through the locking ring 42. The outer circle of the locking ring 42 is hexagonal or provided with a wrench groove, so that the locking ring can be conveniently screwed or unscrewed by a tool.
Preferably, a pressing boss is arranged on the bottom surface of the upper cover 13, and the bottom surface of the pressing boss abuts against the top surface of the upper pressing plate 6.
The pressing boss on the upper cover 13 is directly abutted against the upper pressing plate 6, so that the fixing structure of the product 3 is simplified.
The above description is illustrative of the invention and is not to be construed as limiting, and it will be understood by those skilled in the art that many modifications, changes or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. The utility model provides a high-efficient mill of tooth face of gear of making an uproar, its characterized in that includes frame (1), internal tooth cover (2), rotatory axle sleeve (4), driving fluted disc (5) and last pressure disk (6), frame (1) are including bottom mounting panel (11), outer sleeve (12) and upper cover (13), outer sleeve (12) fixed mounting is on bottom mounting panel (11), internal tooth cover (2) rotate and install in the downthehole of outer sleeve (12), are equipped with internal tooth portion (21) on its inner wall, and its bottom surface butt bottom mounting panel (11), internal tooth portion (21) top is equipped with tooth cover step hole (23), rotatory axle sleeve (4) rotate and install on bottom mounting panel (11), the profile of tooth profile of driving fluted disc (5) is slightly greater than product (3) of waiting to process, product (3) clamp is installed between driving fluted disc (5) and last pressure disk (6), and with driving fluted disc (5) and last pressure disk (6) suit together on rotatory axle sleeve (4), the bottom surface of last pressure disk (6) is slightly higher than the step hole (23) of pressure disk, the external tooth cover (6) is equipped with on the external tooth cover (6) along the axial direction of the top of the round key (6), the transmission fluted disc (5) and the product (3) are connected with the rotary shaft sleeve (4) through transmission keys, the transmission fluted disc (5) is connected with the rotary driving assembly (8), the external teeth of the transmission fluted disc (5) and the upper pressing disc (6) are meshed with the internal tooth part (21), a gap for containing abrasives is formed between the external teeth of the product (3) and the internal tooth part (21), a plurality of abrasive injection holes (22) are formed in the tooth root or the tooth tip of the internal tooth part (21) and are communicated with the outer circle of the internal tooth sleeve (2), the abrasive injection holes (22) are used for injecting abrasives into the gap between the external teeth of the product (3) and the internal tooth part (21), a communication groove (121) is formed in the inner wall of the outer sleeve (12) and is opposite to the rotary shaft sleeve (4), the communication groove (121) is used for supplying abrasives to at least one row of vertical abrasive injection holes (22), at least one abrasive injection hole (122) communicated with the communication groove (121) is formed in the outer sleeve (12), the abrasive injection hole (122) is connected with an abrasive pumping device, the bottom of the abrasive pump (11) is provided with a return opening (111) on the bottom of the abrasive pump (11) and is connected with the return opening (111) on the return opening (12), and is in sealing contact with the top surface of the inner tooth sleeve (2).
2. The efficient tooth surface grinding machine for the noise reduction gear according to claim 1, wherein at least two rotating shaft sleeves (4) are arranged along the axis circumference array of the bottom mounting plate (11), and the transmission fluted disc (5) and the upper pressing disc (6) are correspondingly arranged in groups.
3. The efficient tooth surface grinding machine for the noise reduction gear according to claim 2, wherein the rotary driving assembly (8) comprises a driving motor (81), a toothed belt (82) and a driving gear shaft (83), the driving motor (81) is fixedly installed on the frame (1), the driving gear shaft (83) is rotatably installed in the middle of the bottom mounting plate (11), the tooth part of the driving gear shaft (83) is meshed with the transmission fluted disc (5), the shaft part of the driving gear shaft (83) is rotatably installed in the bottom mounting plate (11) and extends out from the lower side of the bottom mounting plate (11), and the shaft part of the driving gear shaft (83) is connected with the driving motor (81) through the toothed belt (82).
4. The efficient tooth surface grinding machine for the noise reduction gear according to claim 1, wherein a lower mounting plate (15) and a plurality of stand columns (14) are arranged below the bottom mounting plate (11), a shaft sleeve guide column (7) is fixedly mounted on the lower mounting plate (15), and the rotary shaft sleeve (4) is sleeved on the shaft sleeve guide column (7).
5. The efficient tooth surface grinding machine for the noise reduction gear according to claim 4, wherein a first positioning hole is formed in the upper cover (13) and located right above the shaft sleeve guide post (7), a positioning shaft (71) is inserted into the first positioning hole, and the lower end of the positioning shaft (71) penetrates through the upper cover (13) and is inserted into a second positioning hole in the top of the shaft sleeve guide post (7).
6. The efficient tooth surface grinding machine for the noise reduction gear according to claim 4, wherein a lifting plate (16) which moves up and down is arranged below the bottom mounting plate (11), the lower end of the rotary shaft sleeve (4) is rotatably arranged on the lifting plate (16), a supporting tray (41) is fixedly arranged on the rotary shaft sleeve (4), and a supporting tray groove for accommodating the supporting tray (41) is formed in the top surface of the transmission fluted disc (5).
7. The efficient tooth surface grinding machine for the noise reduction gear according to claim 6, wherein the lifting plate (16) is connected with a lifting driving assembly (9), the lifting driving assembly (9) comprises a lifting motor (91), a screw rod (92) and a screw rod nut (93), the lifting motor (91) is fixedly installed on the lower installation plate (15), the screw rod nut (93) is fixedly installed on the lifting plate (16), and the lower end of the shaft sleeve guide post (7) penetrates through the lifting plate (16).
8. The efficient tooth surface grinding machine for the noise reduction gear according to claim 1, wherein the top of the rotary shaft sleeve (4) is provided with connecting threads, and a locking ring (42) is installed on the top of the rotary shaft sleeve in a threaded connection manner above the upper pressure plate (6).
9. The efficient tooth surface grinding machine for the noise reduction gear according to claim 1, wherein a pressing boss is arranged on the bottom surface of the upper cover (13), and the bottom surface of the pressing boss abuts against the top surface of the upper pressing plate (6).
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| CN202310762678.2A CN116493688B (en) | 2023-06-27 | 2023-06-27 | Tooth surface efficient grinding machine for noise reduction gear |
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| CN202310762678.2A CN116493688B (en) | 2023-06-27 | 2023-06-27 | Tooth surface efficient grinding machine for noise reduction gear |
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| CN116493688B true CN116493688B (en) | 2023-08-22 |
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