CN213270914U - Differential device of automobile transmission - Google Patents
Differential device of automobile transmission Download PDFInfo
- Publication number
- CN213270914U CN213270914U CN202021527911.7U CN202021527911U CN213270914U CN 213270914 U CN213270914 U CN 213270914U CN 202021527911 U CN202021527911 U CN 202021527911U CN 213270914 U CN213270914 U CN 213270914U
- Authority
- CN
- China
- Prior art keywords
- gear
- differential
- boss
- differential case
- planet
- 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.)
- Active
Links
Images
Landscapes
- Retarders (AREA)
Abstract
The utility model discloses an automobile transmission differential device, half axle gear installs in the differential casing, half axle gear gasket cover on half axle gear, half axle gear gasket is located between half axle gear and the differential casing, planetary gear shaft installs on the differential casing, planetary gear installs on planetary gear shaft, planetary gear gasket cover on planetary gear shaft, planetary gear gasket is located between planetary gear and the differential casing; the part of the differential shell, which faces the half axle gear gasket, is provided with a first boss, and the edge of the half axle gear gasket is separated from the edge of the first boss and is not contacted with the differential shell; the part of the differential case facing the planet gear is provided with a second boss, and the edge of the planet gear gasket is separated from the edge of the second boss and is not contacted with the differential case. The utility model has the advantages of avoid differential mechanism casing and gasket contact and arouse wearing and tearing.
Description
Technical Field
The utility model relates to an automotive transmission technical field, in particular to automotive transmission differential mechanism device.
Background
In the existing differential device of the automobile transmission, a planetary gear gasket sleeved on a planetary gear shaft is a spherical gasket, the spherical gasket is limited by a structure, the manufacturing difficulty is high, the thickness is difficult to control, and almost no selective room exists, namely the spherical gasket can be manufactured and assembled only according to a designed meshing backlash. However, in the actual assembly process, due to the influence of the precision of the parts, the thickness of the spherical spacer cannot be selected, so that it is difficult to accurately regulate and control the meshing backlash between the planetary gear and the side gear through the spherical spacer, which may cause NVH problems in driving, and the edge of the outer diameter of the side gear spacer may contact the differential case during operation, which may cause reliability problems caused by abnormal wear of the differential case, and also may cause problems of cleanliness and the like.
Disclosure of Invention
The utility model provides an avoid differential mechanism casing and gasket contact and arouse the automotive transmission differential mechanism device of wearing and tearing.
The technical scheme for realizing the purpose is as follows:
the differential device of the automobile transmission comprises a differential shell, a half axle gear gasket, a planetary gear shaft, a planetary gear and a planetary gear gasket, wherein the half axle gear is arranged in the differential shell;
the part of the differential shell, which faces the half axle gear gasket, is provided with a first boss, and the edge of the half axle gear gasket is separated from the edge of the first boss and is not contacted with the differential shell;
the part of the differential case facing the planet gear is provided with a second boss, and the edge of the planet gear gasket is separated from the edge of the second boss and is not contacted with the differential case.
The utility model has the advantages of:
because the edge of the half axle gear gasket is separated from the edge of the first boss and is not in contact with the differential case, and the edge of the planet gear gasket is separated from the edge of the second boss and is not in contact with the differential case, the reliability problem and the cleanliness problem caused by abnormal abrasion of the differential case are avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion P in fig. 1.
Detailed Description
Referring to fig. 1 and 2, an automotive transmission differential device includes a differential case 1, side gears 31, 32, side gear spacers 21, 22, a planetary gear shaft 6, planetary gears 51, 52, planetary gear spacers 71, 72, the side gears 31, 32 being mounted in the differential case 1, the side gear spacers 21, 22 being fitted over the side gears 31, 32, the side gear spacers 21, 22 being located between the side gears 31, 32 and the differential case 1, the planetary gear shaft 6 being mounted on the differential case 1, the planetary gears 51, 52 being mounted on the planetary gear shaft 6, the planetary gear spacers 71, 72 being fitted over the planetary gear shaft 6, the planetary gear spacers 71, 72 being located between the planetary gears 51, 52 and the differential case 1. The side gear washers 21, 22 and the planetary gear washers 71, 72 are preferably flat washers, so that the thicknesses of the side gear washers 21, 22 and the planetary gear washers 71, 72 are convenient to select according to the meshing backlash of the side gears and the planetary gears, for example, the thicknesses of the washers are 1mm, 2mm, 3mm and 4mm, and during specific assembly, the thicknesses are selected according to the required thicknesses, so that the meshing backlash of the side gears 31, 32 and the planetary gears 71, 72 can be accurately controlled, and the reliability problem is avoided while the NVH performance is improved.
The differential case 1 is provided with first bosses 1a at portions facing the side gear spacers 21, 22, and edges of the side gear spacers 21, 22 are separated from edges of the first bosses 1a and do not contact the differential case 1. Preferably, the area of the axial end face of the first boss 1a is smaller than the area of the first axial end face of the side gear spacer 21, 22, so that the edge of the side gear spacer 21, 22 is separated from the edge of the first boss 1 a.
The differential case 1 is provided with second bosses 1b at portions facing the planetary gears 51, 52, and edges of the planetary gear spacers 71, 72 are separated from edges of the second bosses 1b and do not contact the differential case 1. Preferably, the area of the axial end face of the second boss 1b is smaller than the area of the first axial end face of the planetary gear spacer 71, 72, so that the edge of the planetary gear spacer 71, 72 is separated from the edge of the second boss 1 b.
Since the edges of the side gear spacers 21, 22 are separated from the edges of the first bosses 1a and do not contact the differential case 1, and the edges of the planet gear spacers 71, 72 are separated from the edges of the second bosses 1b and do not contact the differential case 1, the reliability problem and the cleanliness problem caused by abnormal wear of the differential case are avoided.
The side gears 31, 32 are provided with shoulders, and after the side gear spacers 21, 22 are fitted over the side gears 31, 32, the second axial end faces of the side gear spacers 21, 22 are fitted with the shoulders, and the area of the second axial end faces is smaller than the surface area of the shoulders.
Still include locking pin 4, be equipped with the mounting hole on the differential mechanism casing 1, be equipped with radial through-hole on the planet gear shaft 6, locking pin 4 gets into the mounting hole passes the through-hole on the planet gear shaft 6. The locking pin 4 is preferably fixed to the differential case 1 by rivet welding, and the locking action of the locking pin 4 on the planetary gear shaft 6 prevents the planetary gear shaft 6 from being separated from the differential case 1.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, but not to limit the technical solution, and the patent scope of the present invention is not limited; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; in addition, will the technical scheme of the utility model direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses an in the patent protection scope.
Claims (6)
1. A differential device of an automobile transmission comprises a differential case (1), side gears (31, 32), side gear gaskets (21, 22), planet gear shafts (6), planet gears (51, 52) and planet gear gaskets (71, 72), wherein the side gears (31, 32) are installed in the differential case (1), the side gear gaskets (21, 22) are sleeved on the side gears (31, 32), the side gear gaskets (21, 22) are positioned between the side gears (31, 32) and the differential case (1), the planet gear shafts (6) are installed on the differential case (1), the planet gears (51, 52) are installed on the planet gear shafts (6), the planet gear gaskets (71, 72) are sleeved on the planet gear shafts (6), and the planet gear gaskets (71, 72) are positioned between the planet gears (51, 52) and the differential case (1), the method is characterized in that:
the part of the differential case (1) facing the side gear gaskets (21, 22) is provided with a first boss (1 a), and the edges of the side gear gaskets (21, 22) are separated from the edges of the first boss (1 a) and are not contacted with the differential case (1);
the differential case (1) is provided with a second boss (1 b) at a portion facing the planetary gears (51, 52), and the edges of the planetary gear spacers (71, 72) are separated from the edges of the second boss (1 b) and do not contact the differential case (1).
2. The automotive transmission differential device according to claim 1, characterized in that the area of the axial end face of the first boss (1 a) is smaller than the area of the first axial end face of the side gear spacer (21, 22) so that the edge of the side gear spacer (21, 22) is separated from the edge of the first boss (1 a).
3. The automotive transmission differential device according to claim 1, characterized in that the area of the axial end face of the second boss (1 b) is smaller than the area of the first axial end face of the planetary gear spacer (71, 72) so that the edge of the planetary gear spacer (71, 72) is separated from the edge of the second boss (1 b).
4. The differential device for an automobile transmission according to claim 1, wherein a shoulder is provided on the side gear (31, 32), and after the side gear spacer (21, 22) is fitted over the side gear (31, 32), a second axial end face of the side gear spacer (21, 22) is fitted to the shoulder, the second axial end face having an area smaller than a surface area of the shoulder.
5. The differential device of the automobile transmission according to any one of claims 1 to 4, characterized by further comprising a locking pin (4), wherein the differential case (1) is provided with a mounting hole, the planet gear shaft (6) is provided with a radial through hole, and the locking pin (4) enters the mounting hole and passes through the through hole of the planet gear shaft (6).
6. The differential device of an automobile transmission according to any one of claims 1 to 4, characterised in that the side gear spacers (21, 22) and the planetary gear spacers (71, 72) are flat spacers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021527911.7U CN213270914U (en) | 2020-07-29 | 2020-07-29 | Differential device of automobile transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021527911.7U CN213270914U (en) | 2020-07-29 | 2020-07-29 | Differential device of automobile transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213270914U true CN213270914U (en) | 2021-05-25 |
Family
ID=75967830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021527911.7U Active CN213270914U (en) | 2020-07-29 | 2020-07-29 | Differential device of automobile transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213270914U (en) |
-
2020
- 2020-07-29 CN CN202021527911.7U patent/CN213270914U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2902662B1 (en) | Reverse gear intermediate shaft supporting structure of transmission | |
| US10781911B2 (en) | Planetary gear assembly | |
| CN213270914U (en) | Differential device of automobile transmission | |
| JP5224369B2 (en) | Idler gear support structure | |
| CN112324865B (en) | Wheel rim shell-reducing and cantilever type planetary gear structure assembly | |
| CN210799941U (en) | Axle speed reducer assembly | |
| JP2006234177A (en) | Planetary gear device | |
| CN107387718B (en) | Support structure for rotary member | |
| WO2019214227A1 (en) | High-precision differential using elastic members | |
| JP3180279B2 (en) | Double planetary carrier | |
| US5545104A (en) | Automotive sun gear/planetary housing assembly | |
| CN218294364U (en) | Differential mechanism assembly with self-sealing structure | |
| CN210118441U (en) | Transmission and vehicle | |
| JPH05248499A (en) | Planetary carrier | |
| CN208221555U (en) | A kind of six shift transmission assemblies | |
| JP2007010040A (en) | Differential device | |
| JP2007010040A5 (en) | ||
| JP5051040B2 (en) | Differential equipment | |
| CN220416151U (en) | Planetary gear, planetary gear assembly, differential and vehicle | |
| CN213419793U (en) | Split type inner gear ring structure of large planetary gear box | |
| CN217633764U (en) | Drive axle main reducer assembly | |
| CN220168487U (en) | Differential and vehicle | |
| JP2006322518A (en) | Snap ring and its mounting structure as well as torque transmission device | |
| CN214367552U (en) | Reverse gear planet carrier limiting structure | |
| CN217054775U (en) | Hinge with elastic hinge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |