CN116677763A - Zero-clearance differential mechanism and power coupling device - Google Patents
Zero-clearance differential mechanism and power coupling device Download PDFInfo
- Publication number
- CN116677763A CN116677763A CN202210160146.7A CN202210160146A CN116677763A CN 116677763 A CN116677763 A CN 116677763A CN 202210160146 A CN202210160146 A CN 202210160146A CN 116677763 A CN116677763 A CN 116677763A
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- pipe
- differential
- oil
- differential mechanism
- driving
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- 230000007246 mechanism Effects 0.000 title claims abstract description 75
- 230000008878 coupling Effects 0.000 title claims description 23
- 238000010168 coupling process Methods 0.000 title claims description 23
- 238000005859 coupling reaction Methods 0.000 title claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 100
- 239000003921 oil Substances 0.000 claims abstract description 88
- 229910052742 iron Inorganic materials 0.000 claims abstract description 50
- 239000010687 lubricating oil Substances 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 238000007373 indentation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 241000220317 Rosa Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
-
- 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
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to the technical field of differentials, and discloses a zero-clearance differential, which comprises a differential body filled with lubricating oil, wherein a filtering mechanism for removing iron scraps in the lubricating oil is arranged on one side of the differential body; the filtering mechanism comprises a filtering box, the filtering box is connected with one side of the differential mechanism body through an absorbing piece, an oil return assembly is communicated with the top of the filtering box, the other end of the oil return assembly is communicated with the side wall of the differential mechanism body, which is close to the top position, a driving pipe is rotatably connected to the center of the bottom of the filtering box through a first sealing bearing, and two ends of the driving pipe penetrate through the first sealing bearing. The zero-clearance differential mechanism can solve the problems that fine scrap iron peeled off from the tooth surface at present diffuses in lubricating oil and enters other mutually meshed gear tooth surfaces to cause more damage to the tooth surfaces such as indentation, peeling, fine cracks and the like, so that a gear set is damaged and the service life of the zero-clearance differential mechanism is shortened.
Description
Technical Field
The invention relates to the technical field of differentials, in particular to a zero-clearance differential and a power coupling device.
Background
The zero clearance differential is a mechanism capable of enabling left and right (or front and rear) driving wheels of an automobile to rotate at different rotational speeds. Zero clearance differentials are typically comprised of differential housing, planetary gears, left side gear, right side gear, left and right side shafts, and the like. The power of the engine enters the zero clearance differential mechanism through the input shaft to drive the planetary gear, and is transmitted to the left half shaft and the right half shaft through the left half shaft gear and the right half shaft gear, and is transmitted to the left wheel and the right wheel through the automobile transmission shaft through the left half shaft and the right half shaft.
When the zero-clearance differential mechanism works, in order to reduce friction resistance among gear sets in the zero-clearance differential mechanism, lubricating oil is filled in the zero-clearance differential mechanism for lubrication, however, due to the fact that the working environment of the zero-clearance differential mechanism is severe, and the fact that all parts of the zero-clearance differential mechanism possibly have defects in design, material treatment and assembly precision, the high torque, high impact and high rotation speed work characteristics cause that all transmission parts in the zero-clearance differential mechanism gradually damage after a plurality of years of operation, contact stress of all points on a gear contact surface is changed in a pulsation cycle mode, after a certain period of time, tiny fatigue cracks are formed due to metal fatigue on the contact surface, and metal is peeled off due to expansion of the cracks, so that pitting corrosion is formed. The fine scrap iron peeled off from the tooth surface diffuses in the lubricating oil and enters other mutually meshed gear tooth surfaces, so that more tooth surface damages such as indentation, peeling, fine cracks and the like can be caused, the gear set is damaged, and the service life of the zero-clearance differential mechanism is shortened.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a zero-clearance differential and a power coupling device, which have the advantage of removing iron filings in lubricating oil, and solve the problems that the existing fine iron filings with stripped tooth surfaces diffuse in the lubricating oil and enter other gear tooth surfaces meshed with each other to cause more damage to the tooth surfaces such as indentation, stripping, fine cracks and the like, so that a gear set is damaged, and the service life of the zero-clearance differential is reduced.
(II) technical scheme
In order to achieve the purpose of removing iron filings in lubricating oil by air intake, the invention provides the following technical scheme: a zero-clearance differential comprises a differential body filled with lubricating oil, wherein a filtering mechanism for removing iron scraps in the lubricating oil is arranged on one side of the differential body;
the filter mechanism comprises a filter box, the filter box is connected with one side of differential mechanism body through absorbing the accessory, the roof intercommunication of filter box has the oil return subassembly, the other end intercommunication of oil return subassembly is in on the lateral wall that differential mechanism body is close to the top position, the bottom of the case center department of filter box rotates through first sealed bearing and is connected with the actuating tube, the both ends of actuating tube pass first sealed bearing setting, the upper end of actuating tube extends to the filter box and communicates there is the filter screen jar, be connected with on the outer pipe wall that the actuating tube is close to the lower extreme position and lead oil pipe through the rotation of second sealed bearing, be located drive assembly is connected with on the outer pipe wall of actuating tube between filter box and the oil pipe, the lower extreme cover of leading oil pipe is equipped with assorted elasticity oil feed pipe, the other end of elasticity oil feed pipe runs through the lateral wall of differential mechanism body and is connected with the pump body, the pump body is installed in the inner bottom of differential mechanism body, it is connected with the locating part on the outer pipe wall that the actuating tube is close to elasticity oil feed pipe one end position, install the valve on the pipe wall that the actuating tube is close to oil feed oil pipe one end position.
Preferably, the adsorption piece comprises an iron block, the iron block is fixedly connected to the outer side wall of the filter box, which is close to the differential mechanism body, an adsorption groove is formed in the side wall of the differential mechanism body, which corresponds to the iron block, a magnet is fixedly connected to the bottom of the adsorption groove, the iron block is arranged in the adsorption groove, and the iron block is connected with the magnet.
Preferably, the oil return assembly comprises an oil outlet pipe, one end of the oil outlet pipe is communicated with the top of the outer box of the filter box, one end of the oil outlet pipe, which is far away from the filter box, is sleeved with a matched elastic oil return pipe, and the other end of the elastic oil return pipe penetrates through the side wall, close to the top position, of the differential body and extends towards the differential body.
Preferably, the driving assembly comprises a driving motor, the driving motor is fixedly connected to the side wall of the differential mechanism body, the output end of the driving motor is connected with a driving gear through a coupling, the outer pipe wall of the driving pipe is connected with a driven gear, and the driving gear is meshed with the driven gear.
Preferably, the limiting piece comprises a telescopic rod, one end of the telescopic rod is fixedly connected to the side wall of the differential mechanism body, a limiting ring is fixedly connected to the outer pipe wall of the oil guide pipe, which is close to one end of the elastic oil inlet pipe, and the telescopic end of the telescopic rod penetrates through the limiting ring.
Preferably, a box opening is formed in one side wall of the filter box, a sealing door plate is mounted on the box opening in a sealing mode, and a pull handle is mounted on the outer side of the sealing door plate.
Preferably, the inner top of the differential mechanism body is fixedly connected with an oil dispersing ring, a plurality of oil dispersing holes are uniformly and equidistantly formed in the inner annular wall of the oil dispersing ring, and one end, far away from the filter box, of the elastic oil return pipe is communicated with the outer annular wall of the oil dispersing ring.
The power coupling device comprises a power coupling device body, wherein a zero-clearance differential mechanism is arranged on the power coupling device body.
(III) beneficial effects
Compared with the prior art, the invention provides the zero-clearance differential mechanism and the power coupling device, which have the following beneficial effects:
1. this zero clearance differential mechanism through setting up filtering mechanism, gets rid of iron fillings in the lubricating oil, avoids mixing with iron fillings in the internal lubricating oil of differential mechanism, leads to the gear train to damage, has improved zero clearance differential mechanism's life.
2. This zero clearance differential mechanism, through setting up drive assembly, start driving motor, apply centrifugal force to lubricating oil and iron fillings in the filter screen jar, when throwing away the lubricating oil and improving filtration efficiency for the iron fillings in the filter screen jar are whole to be thrown on the inner tank wall of filter screen jar, make the tank deck of filter screen jar expose, can last filtering iron fillings in the lubricating oil.
3. This zero clearance differential mechanism, when need clear up filter screen jar internal iron bits, dismantle the rose box from differential mechanism main part afterwards, pour out the rose box internal lubricating oil from the play oil pipe again, open the valve again, pour out filter screen jar internal iron bits through drive pipe and lead oil pipe, clear up filter screen jar internal iron bits.
4. And the power coupling device is provided with the zero-clearance differential mechanism on the power coupling device body, so that the power coupling device can work stably for a long time, and the service life of the power coupling device is prolonged.
Drawings
FIG. 1 is a schematic diagram of a zero clearance differential according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a schematic structural diagram of a filter box in a zero-clearance differential according to the present invention.
In the figure: 1. a differential body; 2. a filter box; 3. a first sealed bearing; 4. a driving tube; 5. a filter screen tank; 6. a second sealed bearing; 7. an oil guide pipe; 8. an elastic oil inlet pipe; 9. a pump body; 10. a valve; 11. iron blocks; 12. an adsorption tank; 13. a magnet; 14. an oil outlet pipe; 15. an elastic oil return pipe; 16. a driving motor; 17. a drive gear; 18. a driven gear; 19. a telescopic rod; 20. a limiting ring; 21. sealing the door plate; 22. oil-spreading ring; 23. and the oil dispersing hole is formed in the bottom surface of the shell.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a zero-clearance differential mechanism comprises a differential mechanism body 1 filled with lubricating oil, wherein a filtering mechanism for removing iron scraps in the lubricating oil is arranged on one side of the differential mechanism body 1, the iron scraps in the lubricating oil are removed, the phenomenon that a gear set is damaged due to the iron scraps mixed in the lubricating oil in the differential mechanism body is avoided, and the service life of the zero-clearance differential mechanism is prolonged.
The filter mechanism comprises a filter box 2, a box opening is formed in one side wall of the filter box 2, a sealing door plate 21 is mounted on the box opening in a sealing manner, a pull handle is mounted on the outer side of the sealing door plate 21, the sealing door plate 21 is taken down from the box opening of the filter box 2 through the pull handle, maintenance is convenient to conduct in the filter box 2, the filter box 2 is connected with one side of the differential mechanism body 1 through an adsorption piece, the adsorption piece comprises an iron block 11, the iron block 11 is fixedly connected to the outer side wall of the filter box 2, which is close to the differential mechanism body 1, an adsorption groove 12 is formed in the side wall of the differential mechanism body 1, a magnet 13 is fixedly connected to the bottom of the adsorption groove 12, the iron block 11 is arranged in the adsorption groove 12, the iron block 11 is connected with the magnet 13, and the filter box 2 is connected to the outer side wall of the differential mechanism body 1 through magnetic adsorption force between the iron block 11 and the magnet 13.
Referring to fig. 1 and 4, the tank top of the filter tank 2 is communicated with an oil return assembly, the other end of the oil return assembly is communicated with the side wall of the differential mechanism body 1, which is close to the top, the oil return assembly comprises an oil outlet pipe 14, one end of the oil outlet pipe 14 is communicated with the outer tank top of the filter tank 2, one end of the oil outlet pipe 14, which is far away from the filter tank 2, is sleeved with a matched elastic oil return pipe 15, the other end of the elastic oil return pipe 15 penetrates through the side wall of the differential mechanism body 1, which is close to the top, and extends into the differential mechanism body 1, filtered lubricating oil in the filter tank 2 is discharged through the oil outlet pipe 14, and then flows back into the differential mechanism body 1 through the elastic oil return pipe 15, the inner top of the differential mechanism body 1 is fixedly connected with an oil distributing ring 22, a plurality of oil distributing holes 23 are uniformly and equidistantly formed in the inner annular wall of the oil distributing ring 22, one end of the elastic oil return pipe 15, which is far away from the filter tank 2, is communicated with the outer annular wall of the oil distributing ring 22, the lubricating oil is transported into the heat dissipating ring 22 through the oil distributing holes 23, and the lubricating oil is sprayed on the gear set in the differential mechanism body 1 through the oil distributing holes 23. .
The center of the bottom of the filter tank 2 is rotatably connected with a driving pipe 4 through a first sealing bearing 3, two ends of the driving pipe 4 penetrate through the first sealing bearing 3, the upper end of the driving pipe 4 extends into the filter tank 2 and is communicated with a filter screen tank 5, an oil guide pipe 7 is rotatably connected to the outer pipe wall of the driving pipe 4 close to the lower end through a second sealing bearing 6, a driving component is connected to the outer pipe wall of the driving pipe 4 between the filter tank 2 and the oil guide pipe 7, the driving component comprises a driving motor 16, the driving motor 16 is fixedly connected to the side wall of the differential mechanism body 1, the output end of the driving motor 16 is connected with a driving gear 17 through a coupling, a driven gear 18 is connected to the outer pipe wall of the driving pipe 4, the driving gear 17 is meshed with the driven gear 18, centrifugal force is applied to lubricating oil and scrap iron in the filter screen tank 5, and scrap iron in the filter screen tank 5 is thrown out to improve the filtering efficiency, and meanwhile, the top of the filter screen tank 5 is exposed out, and iron scrap in the filter screen tank 5 can be filtered continuously.
Referring to fig. 1, the lower end of the oil guide pipe 7 is sleeved with a matched elastic oil inlet pipe 8, the other end of the elastic oil inlet pipe 8 penetrates through the side wall of the differential mechanism body 1 and is connected with a pump body 9, the pump body 9 is mounted at the inner bottom of the differential mechanism body 1, a limiting piece is connected to the outer pipe wall of the oil guide pipe 7, which is close to one end position of the elastic oil inlet pipe 8, and comprises a telescopic rod 19, one end of the telescopic rod 19 is fixedly connected to the side wall of the differential mechanism body 1, a limiting ring 20 is fixedly connected to the outer pipe wall of the oil guide pipe 7, the telescopic end of the telescopic rod 19 penetrates through the limiting ring 20, the output end of the telescopic rod 19 penetrates through the limiting ring 20, the position of the oil guide pipe 7 is supported, and a valve 10 is mounted on the pipe wall of the driving pipe 4, which is close to one end position of the oil guide pipe 7.
A power coupling device comprises a power coupling device body, wherein a zero-clearance differential mechanism is arranged on the power coupling device body.
In summary, according to the zero-clearance differential, the pump 9 conveys the lubrication mixed with the scrap iron in the differential body 1 into the filter screen tank 5 in the filter tank 2 through the elastic oil inlet pipe 8, the oil guide pipe 7 and the driving pipe 4, the filter screen tank 5 filters the lubricating oil, the scrap iron is remained in the filter screen tank 5, the lubricating oil with the scrap iron removed enters the filter tank 2, and then flows back into the filter tank 2 through the oil return assembly, so that the scrap iron in the lubricating oil is removed, the damage of a gear set caused by the scrap iron mixed in the lubricating oil in the differential body 1 is avoided, and the service life of the zero-clearance differential is prolonged; when the scrap iron is filtered, the driving motor 16 is started, the driving motor 16 drives the driving gear 17 to rotate, the driven gear 18 meshed with the driving gear 17 drives the driving pipe 4 to rotate in the first sealing bearing 3, and then drives the filter screen tank 5 to rotate in the filter box 2, centrifugal force is applied to lubricating oil and scrap iron in the filter screen tank 5, the lubricating oil is thrown out to improve the filtering efficiency, and meanwhile, the scrap iron in the filter screen tank 5 is thrown on the inner tank wall of the filter screen tank 5 completely, so that the tank top of the filter screen tank 5 is exposed, and the filtering of the scrap iron in the lubricating oil can be continuously carried out; when the scrap iron in the filter screen tank 5 needs to be cleaned, the valve 10 is closed, then the elastic oil return pipe 15 is separated from the oil outlet pipe 14, the elastic oil inlet pipe 8 is separated from the oil guide pipe 7, then the filter box 2 is detached from the differential mechanism main body 1, lubricating oil in the filter box 2 is poured out from the oil outlet pipe 14, the valve 10 is opened, the scrap iron in the filter screen tank 5 is poured out through the driving pipe 4 and the oil guide pipe 7, and the scrap iron in the filter screen tank 5 is cleaned; the zero-clearance differential mechanism is arranged on the power coupling device body, so that the power coupling device can work stably for a long time, and the service life of the power coupling device is prolonged.
It should be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A zero clearance differential comprising a differential body (1) internally filled with lubricating oil, characterized in that: a filtering mechanism for removing iron scraps in lubricating oil is arranged on one side of the differential mechanism body (1);
the filtering mechanism comprises a filtering box (2), the filtering box (2) is connected with one side of a differential mechanism body (1) through an absorbing part, an oil return component is communicated with the top of the filtering box (2), the other end of the oil return component is communicated with the side wall of the differential mechanism body (1) close to the top, the center of the bottom of the filtering box (2) is rotationally connected with a driving pipe (4) through a first sealing bearing (3), two ends of the driving pipe (4) penetrate through the first sealing bearing (3) and are arranged, the upper end of the driving pipe (4) extends into the filtering box (2) and is communicated with a filter screen tank (5), an oil guide pipe (7) is rotationally connected to the outer pipe wall of the driving pipe (4) close to the lower end position through a second sealing bearing (6), a driving component is connected to the outer pipe wall of the driving pipe (4) between the filtering box (2) and the oil guide pipe (7), a matched elastic oil inlet pipe (8) is sleeved at the lower end of the driving pipe, the other end of the elastic oil inlet pipe (8) extends into the filtering box (2) and is connected with the inner bottom (9) of the differential mechanism body (1) close to the inner bottom (9) of the differential mechanism body (9), a valve (10) is arranged on the pipe wall of the driving pipe (4) close to one end of the oil guide pipe (7).
2. A zero clearance differential as defined in claim 1, wherein: the adsorption piece comprises an iron block (11), the iron block (11) is fixedly connected to the outer side wall, close to the differential mechanism body (1), of the filter box (2), an adsorption groove (12) is formed in the side wall, corresponding to the iron block (11), of the differential mechanism body (1), a magnet (13) is fixedly connected to the groove bottom of the adsorption groove (12), the iron block (11) is arranged in the adsorption groove (12), and the iron block (11) is connected with the magnet (13).
3. A zero clearance differential as defined in claim 1, wherein: the oil return assembly comprises an oil outlet pipe (14), one end of the oil outlet pipe (14) is communicated with the top of the outer box of the filter box (2), one end of the oil outlet pipe (14) away from the filter box (2) is sleeved with a matched elastic oil return pipe (15), and the other end of the elastic oil return pipe (15) penetrates through the side wall, close to the top, of the differential body (1) and extends towards the inside of the differential body (1).
4. A zero clearance differential as defined in claim 1, wherein: the driving assembly comprises a driving motor (16), the driving motor (16) is fixedly connected to the side wall of the differential mechanism body (1), the output end of the driving motor (16) is connected with a driving gear (17) through a coupling, the outer pipe wall of the driving pipe (4) is connected with a driven gear (18), and the driving gear (17) is meshed with the driven gear (18).
5. A zero clearance differential as defined in claim 1, wherein: the limiting piece comprises a telescopic rod (19), one end of the telescopic rod (19) is fixedly connected to the side wall of the differential mechanism body (1), a limiting ring (20) is fixedly connected to the outer pipe wall, close to one end of the elastic oil inlet pipe (8), of the oil guide pipe (7), and the telescopic end of the telescopic rod (19) is arranged through the limiting ring (20).
6. A zero clearance differential as defined in claim 1, wherein: the filter box is characterized in that a box opening is formed in one side box wall of the filter box (2), a sealing door plate (21) is mounted on the box opening in a sealing mode, and a pull handle is mounted on the outer side of the sealing door plate (21).
7. A zero clearance differential as defined in claim 3, wherein: the differential mechanism is characterized in that an oil dispersing ring (22) is fixedly connected to the inner top of the differential mechanism body (1), a plurality of oil dispersing holes (23) are uniformly formed in the inner annular wall of the oil dispersing ring (22) at equal intervals, and one end, far away from the filter box (2), of the elastic oil return pipe (15) is communicated with the outer annular wall of the oil dispersing ring (22).
8. A power coupling device, characterized by: the power coupling device body, on which the zero-clearance differential as claimed in any one of claims 1 to 7 is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160146.7A CN116677763A (en) | 2022-02-22 | 2022-02-22 | Zero-clearance differential mechanism and power coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160146.7A CN116677763A (en) | 2022-02-22 | 2022-02-22 | Zero-clearance differential mechanism and power coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116677763A true CN116677763A (en) | 2023-09-01 |
Family
ID=87787785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210160146.7A Pending CN116677763A (en) | 2022-02-22 | 2022-02-22 | Zero-clearance differential mechanism and power coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116677763A (en) |
-
2022
- 2022-02-22 CN CN202210160146.7A patent/CN116677763A/en active Pending
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