CN114251427A - Differential mechanism and vehicle - Google Patents
Differential mechanism and vehicle Download PDFInfo
- Publication number
- CN114251427A CN114251427A CN202210012123.1A CN202210012123A CN114251427A CN 114251427 A CN114251427 A CN 114251427A CN 202210012123 A CN202210012123 A CN 202210012123A CN 114251427 A CN114251427 A CN 114251427A
- Authority
- CN
- China
- Prior art keywords
- differential
- gear
- wall
- planetary gear
- side gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
-
- 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
-
- 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
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The embodiment of the invention provides a differential mechanism and a vehicle, comprising: a housing; a side gear rotatably mounted on an inner wall of the housing; the planetary gear is rotatably arranged on the inner wall of the shell and is meshed with the half axle gear; a corrugated washer provided between the side gear and an inner wall of the case, for providing a pre-pressure toward the planetary gear to the side gear; the technical problem that the comfort degree of a vehicle is poor due to starting or gear shifting impact of the vehicle caused by the gap cannot be effectively solved although the size of the meshing backlash can be reduced to a certain degree by adopting the annular plane gasket in the prior art is effectively solved.
Description
Technical Field
The invention relates to the technical field of speed regulation, in particular to a differential and a vehicle.
Background
The existing differential is internally provided with a planetary gear and a half axle gear which are meshed with each other, and the meshing side clearance is generally 0.05-0.25 mm, which is one of the main factors causing vehicle starting or gear shifting impact, so that the comfort of a vehicle is deteriorated.
At present, an annular plane gasket is generally adopted between the side gear and the differential case to reduce the meshing backlash between the planet gear and the side gear, but although the annular plane gasket can reduce the size of the meshing backlash to a certain degree, the technical problem that the backlash causes vehicle starting or gear shifting impact and causes the vehicle comfort to be poor cannot be effectively solved.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a differential mechanism which is used for solving the technical problem that the engagement backlash causes vehicle starting or gear shifting impact, so that the comfort of a vehicle is poor.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
an embodiment of the present invention provides a differential, comprising:
a housing;
a side gear rotatably mounted on an inner wall of the housing;
the planetary gear is rotatably arranged on the inner wall of the shell and is meshed with the half axle gear;
and the corrugated gasket is arranged between the side gear and the inner wall of the shell and is used for providing pre-pressure towards the planet gear for the side gear.
In some embodiments of the present application, the corrugated gasket is stamped and formed from sheet steel.
In some embodiments of the present application, the corrugated gasket has at least two grooves, and a contact generatrix between two adjacent grooves is in contact with the inner wall of the housing.
In some embodiments of the present application, the number of slots is three, six, or twelve.
In some embodiments of the present application, the contact bus is radially distributed, and when the side gear is in operation, the contact bus rotates along the axis, and the swept surface formed by the rotation of the contact bus is a circular ring plane.
Some embodiments of the present application further comprise:
a first spacer disposed between the planetary gear and an inner wall of the housing.
In some embodiments of the present application, the first gasket is a spherical gasket.
In some embodiments of the present application, the housing has an accommodating space, and the side gear and the planetary gear are both provided in the accommodating space.
Some embodiments of the present application further comprise:
and the differential shaft is arranged on the shell and penetrates through the accommodating space, and the planetary gear is rotationally connected with the differential shaft.
Embodiments of the present invention also provide a vehicle, comprising:
the differential gear as described above;
compared with the prior art, the embodiment of the invention has the beneficial effects that:
the invention provides a differential and a vehicle, comprising a shell, a half axle gear, a planetary gear and a corrugated gasket, wherein the half axle gear and the planetary gear are in mesh transmission, the corrugated gasket is arranged between the half axle gear and the inner wall of the shell, one end of the corrugated gasket is in contact with the end surface of the half axle gear, the other end of the corrugated gasket is in contact with the inner wall of the shell, the inner wall of the shell is fixed, the corrugated gasket has elasticity, so that the corrugated gasket can provide pre-pressure on the half axle gear, the half axle gear has acting force pressing towards the direction of the planetary gear, meshing side clearance between the planetary gear and the half axle gear in the differential can be effectively eliminated, starting or shifting impact is reduced, the half axle gear is ensured to run smoothly, and the problem of blocking of the half axle gear is prevented, the differential mechanism of this embodiment can solve the meshing backlash effectively and cause vehicle start or shift impact, lead to the technical problem of vehicle comfort level variation.
Drawings
In order to more clearly illustrate the embodiments of the present application 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, and it is obvious that the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a differential according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a corrugated gasket of a differential according to an embodiment of the present invention.
Wherein:
100. a housing; 101. an accommodating space; 200. a half shaft gear; 300. a planetary gear; 400. a corrugated gasket; 500. a first gasket; 600. a differential shaft.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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 application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The following detailed description of certain embodiments of the present application refers to the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, fig. 1 is a schematic structural diagram of a differential mechanism according to an embodiment of the present invention;
an embodiment of the present invention provides a differential, comprising:
a housing 100;
a side gear 200 rotatably mounted on an inner wall of the case 100;
a planetary gear 300 rotatably mounted on the case 100 and engaged with the side gear 200;
a corrugated washer 400 provided between the side gear 200 and the inner wall of the case 100 for providing pre-pressure to the side gear 200 toward the planetary gear 300.
In the differential of the present embodiment, the side gear 200 and the planetary gear 300 are in mesh transmission, the corrugated washer 400 is disposed between the side gear 200 and the inner wall of the casing 100, wherein one end of the corrugated washer 400 is in contact with the end face of the side gear 200, the other end of the corrugated washer 400 is in contact with the inner wall of the casing 100, the inner wall of the casing 100 is fixed, and the corrugated washer 400 has elasticity, so that it can provide pre-pressure on the side gear 200, so that the side gear 200 has a force pressing towards the direction of the planetary gear 300, thereby effectively eliminating the meshing backlash between the planetary gear 300 and the side gear 200 in the differential, reducing the starting or shifting shock, ensuring smooth operation of the side gear 200, and preventing the side gear 200 from being stuck, the differential mechanism of this embodiment can solve the meshing backlash effectively and cause vehicle start or shift impact, lead to the technical problem of vehicle comfort level variation.
A groove is provided on the inner wall of the case 100, and the side gear 200 is mounted on the groove by clearance fit so as to be rotatable relative to the case 100.
In this embodiment, corrugated gasket 400 is for having steel sheet stamping forming can carry out the punching press by the plane gasket and form the groove of same interval, and forms corrugated gasket 400, and its manufacturing is convenient, and the cost is not increased again, is fit for popularizing and applying, simultaneously, for making corrugated gasket has better elasticity, can after steel sheet stamping forming, adopt quenching technology again to handle for corrugated gasket can form better elasticity, so that when using, better provide the pre-compression.
In some embodiments of the present application, the corrugated gasket 400 has at least two grooves, and a contact generatrix between two adjacent grooves is in contact with the inner wall of the housing 100.
The corrugated washer 400 has at least two grooves so that it can have elasticity so that it can have a pre-pressure reaction on the side gear 200 when it is pressed by the side gear 200 to eliminate a backlash between the side gear 200 and the planetary gear 300.
In some embodiments of the present application, the number of slots is three, six, or twelve.
In some embodiments of the present application, the contact generatrix is radially distributed, and when the side gear 200 is in operation, the contact generatrix rotates along the axis, and the swept surface formed by the rotation of the contact generatrix is a circular annular plane.
The swept surface is a circular plane, so that the contact area is enlarged, the abrasion of the inner wall of the shell 100 is greatly reduced, the pre-pressure of the corrugated gasket 400 is ensured not to be attenuated, the tooth side clearance between the planetary gear 300 and the side gear 200 is maintained to be zero, and the service life is prolonged.
In the related technology, the butterfly gasket is used for replacing the original plane gasket to generate compression deformation after being installed, so that pre-pressure is provided, the meshing gap between the half shaft gear 200 and the planetary gear 300 is eliminated, and the phenomenon of locking during gear transmission is prevented; however, as the butterfly-shaped gasket is in circular line contact with the inner wall of the shell 100, and the hardness difference between the butterfly-shaped gasket and the inner wall of the shell 100 is large, the inner wall of the shell 100 is easily abraded after the butterfly-shaped gasket is used for a period of time, so that the prepressing force of the butterfly-shaped gasket is greatly attenuated, the meshing clearance between the half-axle gear 200 and the planetary gear 300 is gradually increased from zero, and the vehicle starting or gear shifting impact occurs; according to practical verification and disassembly analysis, when the driving distance of a vehicle using the differential with the butterfly-shaped gasket reaches about 3 kilometers, the inner wall of the shell 100 is seriously abraded, an annular pit of 0.3-0.5 mm is formed, and the vehicle starts to have gear shifting impact; therefore, the butterfly washer has the defect of short service life in the aspects of eliminating the meshing clearance between the side gear 200 and the planetary gear 300 and reducing the gear shifting impact.
The corrugated gasket 400 of the present embodiment, taking a twelve arc groove corrugated gasket 400 as an example, after being installed in a differential, has twelve bus contacts with the inner wall of the case 100, the contact buses are distributed along the radial direction, all the bus rotates along the axis during operation, and the swept surface is a circular ring plane, which increases the contact area, greatly reduces the wear of the inner wall of the case 100, ensures that the pre-pressure of the corrugated gasket 400 is not attenuated, maintains the tooth side gap between the planetary gear 300 and the side gear 200 to be zero, and prolongs the service life; the prepressing attenuation occurs when the differential mechanism adopting the belleville springs runs for about 3 kilometers, and the shifting impact is aggravated again, while the differential mechanism adopting the corrugated gasket 400 can ensure that the prepressing of 12 kilometers is unchanged, the meshing backlash between the planetary gear 300 and the half-shaft gear 200 is always zero, and the shifting of the vehicle in the whole life cycle is basically realized without impact.
In some embodiments of the present application, further comprising:
a first spacer 500 provided between the planetary gear 300 and an inner wall of the housing 100.
The first spacer 500 also serves to reduce the backlash between the planetary gear 300 and the side gear 200, and at the same time, it can avoid the problem that the planetary gear 300 and the inner wall of the housing 100 are directly contacted, resulting in the friction damage therebetween and the frequent need for replacement, and if the planetary gear 300 and the inner wall of the housing are worn, the replacement cost is high, in this embodiment, the first spacer 500 can reduce the wear caused by the direct contact between the planetary gear 300 and the inner wall of the housing, on the one hand, and even if the first spacer 500 is worn, the replacement cost is low.
In some embodiments of the present application, the first gasket 500 is a spherical gasket.
Wherein the spherical spacer can also function as the first spacer 500 as described above
The planetary gear 300 is matched, so that the problem that the planetary gear 300 is blocked is prevented.
In some embodiments of the present application, the case 100 has an accommodating space 101, and the side gear 200 and the planetary gear 300 are both disposed in the accommodating space 101.
An inner cavity is formed in the shell 100, the inner cavity is an accommodating space 101, and the two side gears 200 are mounted on the shell 100 through clearance fit, wherein the two side gears 200 are coaxially arranged in opposite, and the two planetary gears 300 are coaxially arranged in pair first and are meshed with the two side gears 200.
In some embodiments of the present application, further comprising:
a differential shaft 600 mounted on the housing 100 and passing through the receiving space 101, wherein the planetary gear 300 is rotatably connected to the differential shaft 600.
The differential mechanism of the embodiment adopts the corrugated gasket 400, is a domestic initiative, can be widely popularized and applied to the differential mechanism of rear drive axles of automobiles, engineering machinery, agricultural machinery, mining machinery and the like, and has low cost and convenient application.
Embodiments of the present invention also provide a vehicle, comprising:
the differential gear as described above;
in the vehicle of the present embodiment, the side gear 200 and the planetary gear 300 are in mesh transmission, the corrugated washer 400 is disposed between the side gear 200 and the inner wall of the casing 100, wherein one end of the corrugated washer 400 is in contact with the end face of the side gear 200, the other end of the corrugated washer 400 is in contact with the inner wall of the casing 100, the inner wall of the casing 100 is stationary, and the corrugated washer 400 has elasticity, so that it can provide pre-pressure on the side gear 200, so that the side gear 200 has a force pressing toward the direction of the planetary gear 300, thereby effectively eliminating the meshing backlash between the planetary gear 300 and the side gear 200 in the differential, reducing the starting or shifting shock, and ensuring smooth operation of the side gear 200, and preventing the problem of the side gear 200 from being stuck, the differential of the present embodiment, the technical problem that the comfort degree of a vehicle is poor due to vehicle starting or gear shifting impact caused by meshing backlash can be effectively solved.
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 of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A differential, comprising:
a housing;
a side gear rotatably mounted on an inner wall of the housing;
a planetary gear rotatably mounted on the housing and engaged with the side gear;
and the corrugated gasket is arranged between the side gear and the inner wall of the shell and is used for providing pre-pressure towards the planet gear for the side gear.
2. The differential of claim 1,
the corrugated gasket is formed by punching and molding a steel plate.
3. The differential of claim 1, wherein said corrugated spacer has at least two grooves, and a contact busbar between two adjacent grooves is in contact with an inner wall of said housing.
4. A differential as claimed in claim 3, wherein the number of grooves is three, six or twelve.
5. The differential of claim 3 wherein said contact buses are radially spaced, and wherein said contact buses rotate axially when said side gears are in operation, said contact buses rotating to form a swept surface that is a circular annular surface.
6. The differential of claim 1, further comprising:
a first spacer disposed between the planetary gear and an inner wall of the housing.
7. The differential of claim 6, wherein the first shim is a spherical shim.
8. The differential of claim 1, wherein said case has an accommodating space, and said side gear and said planetary gear are both disposed in said accommodating space.
9. The differential of claim 8, further comprising:
and the differential shaft is arranged on the shell and penetrates through the accommodating space, and the planetary gear is rotationally connected with the differential shaft.
10. A vehicle, characterized by comprising:
the differential of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210012123.1A CN114251427A (en) | 2022-01-06 | 2022-01-06 | Differential mechanism and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210012123.1A CN114251427A (en) | 2022-01-06 | 2022-01-06 | Differential mechanism and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114251427A true CN114251427A (en) | 2022-03-29 |
Family
ID=80799457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210012123.1A Withdrawn CN114251427A (en) | 2022-01-06 | 2022-01-06 | Differential mechanism and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114251427A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10246308A (en) * | 1997-03-05 | 1998-09-14 | Tochigi Fuji Ind Co Ltd | Differential device |
| DE10319854A1 (en) * | 2003-05-03 | 2004-11-18 | Daimlerchrysler Ag | Gearbox for bevel gear differential for vehicle e.g. car, all terrain vehicle (ATV), has preloaded disk or cup-like springs supporting axle shaft bevel gears with respect to differential housing |
| DE10349203A1 (en) * | 2003-10-23 | 2005-05-25 | Daimlerchrysler Ag | Compact differential for four wheel drive has a spring backed steel plate friction clutch connecting one of the output shafts |
| JP2005170309A (en) * | 2003-12-12 | 2005-06-30 | Toyoda Mach Works Ltd | Reduction gear ratio variable type power steering device |
| US20060240934A1 (en) * | 2005-04-25 | 2006-10-26 | Cradit Jeremy L | "Zero" lash spherical differential assembly using spring washers |
| CN101086293A (en) * | 2006-06-07 | 2007-12-12 | 福特环球技术公司 | Resiliently loaded side gears in a differential mechanism |
| US20090215574A1 (en) * | 2008-02-21 | 2009-08-27 | Magna Powertrain Ag & Co Kg | Differntial gear |
| CN103851155A (en) * | 2014-03-31 | 2014-06-11 | 长城汽车股份有限公司 | Differential device and vehicle with same |
| CN207049282U (en) * | 2017-08-18 | 2018-02-27 | 山东汇金股份有限公司 | One kind is without sideshake differential assembly |
| US20190195337A1 (en) * | 2017-12-22 | 2019-06-27 | Hyundai Motor Company | Camshaft unit for vehicle |
| CN111572331A (en) * | 2020-04-26 | 2020-08-25 | 东风汽车集团有限公司 | Electric wheel magneto-rheological torsion damper |
| CN112984072A (en) * | 2021-03-13 | 2021-06-18 | 柳州美桥汽车传动***有限公司 | Differential mechanism with electronic differential lock locking mechanism |
| CN214248203U (en) * | 2020-10-29 | 2021-09-21 | 合肥美桥汽车传动及底盘***有限公司 | Zero clearance differential mechanism assembly |
-
2022
- 2022-01-06 CN CN202210012123.1A patent/CN114251427A/en not_active Withdrawn
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10246308A (en) * | 1997-03-05 | 1998-09-14 | Tochigi Fuji Ind Co Ltd | Differential device |
| DE10319854A1 (en) * | 2003-05-03 | 2004-11-18 | Daimlerchrysler Ag | Gearbox for bevel gear differential for vehicle e.g. car, all terrain vehicle (ATV), has preloaded disk or cup-like springs supporting axle shaft bevel gears with respect to differential housing |
| DE10349203A1 (en) * | 2003-10-23 | 2005-05-25 | Daimlerchrysler Ag | Compact differential for four wheel drive has a spring backed steel plate friction clutch connecting one of the output shafts |
| JP2005170309A (en) * | 2003-12-12 | 2005-06-30 | Toyoda Mach Works Ltd | Reduction gear ratio variable type power steering device |
| US20060240934A1 (en) * | 2005-04-25 | 2006-10-26 | Cradit Jeremy L | "Zero" lash spherical differential assembly using spring washers |
| CN101086293A (en) * | 2006-06-07 | 2007-12-12 | 福特环球技术公司 | Resiliently loaded side gears in a differential mechanism |
| US20090215574A1 (en) * | 2008-02-21 | 2009-08-27 | Magna Powertrain Ag & Co Kg | Differntial gear |
| CN103851155A (en) * | 2014-03-31 | 2014-06-11 | 长城汽车股份有限公司 | Differential device and vehicle with same |
| CN207049282U (en) * | 2017-08-18 | 2018-02-27 | 山东汇金股份有限公司 | One kind is without sideshake differential assembly |
| US20190195337A1 (en) * | 2017-12-22 | 2019-06-27 | Hyundai Motor Company | Camshaft unit for vehicle |
| CN111572331A (en) * | 2020-04-26 | 2020-08-25 | 东风汽车集团有限公司 | Electric wheel magneto-rheological torsion damper |
| CN214248203U (en) * | 2020-10-29 | 2021-09-21 | 合肥美桥汽车传动及底盘***有限公司 | Zero clearance differential mechanism assembly |
| CN112984072A (en) * | 2021-03-13 | 2021-06-18 | 柳州美桥汽车传动***有限公司 | Differential mechanism with electronic differential lock locking mechanism |
Non-Patent Citations (2)
| Title |
|---|
| 刘宏;范春利;李浩亮;: "双金属垫片在驱动桥差速器中的应用及参数设计研究", 汽车实用技术, no. 20, pages 164 - 166 * |
| 黄祖思;麦承贤;徐永路;梁甲;李怀习;范明林;董恒波;赵雷;: "关于差速器选垫工艺的研究", 时代汽车, no. 20, pages 78 - 80 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115435074A (en) | RV speed reducer with self-clearance-eliminating structure | |
| CN112324865B (en) | Wheel rim shell-reducing and cantilever type planetary gear structure assembly | |
| CN114251427A (en) | Differential mechanism and vehicle | |
| CN211449546U (en) | Roller rack transmission mechanism | |
| CN212155664U (en) | Planetary transmission device | |
| CN210889326U (en) | Pumping device, rotary compressor and refrigeration equipment | |
| CN218347871U (en) | Speed reducer and industrial robot | |
| CN220168487U (en) | Differential and vehicle | |
| CN219035509U (en) | Impact noise prevention differential mechanism assembly | |
| CN110953319A (en) | Wear-resistant differential mechanism | |
| CN213088654U (en) | Gear with good wear-resisting effect | |
| CN2918864Y (en) | Sphere roller containing type universal coupling | |
| CN218454941U (en) | Harmonic speed reducer | |
| CN219975282U (en) | Worm wheel worm centre-to-centre spacing compensation arrangement | |
| CN201232675Y (en) | Bidirectional gear motor | |
| CN212690742U (en) | Differential mechanism ball pad and planetary gear structure | |
| CN214248158U (en) | Transmission mechanism | |
| CN217271678U (en) | Drive roller speed reducer | |
| CN218494170U (en) | RV speed reducer with self-clearance-eliminating structure | |
| CN220791940U (en) | Crankshaft assembly, RV reducer and industrial robot | |
| CN219277231U (en) | Power drive system and vehicle | |
| CN216923120U (en) | Speed changer | |
| CN219221097U (en) | Integrated brake outer hub structure | |
| CN212337896U (en) | Low-noise wear-resistant bearing | |
| CN220015978U (en) | Differential mechanism and engineering machinery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220329 |
|
| WW01 | Invention patent application withdrawn after publication |