CN207921265U - Automobile differential - Google Patents
Automobile differential Download PDFInfo
- Publication number
- CN207921265U CN207921265U CN201820346073.XU CN201820346073U CN207921265U CN 207921265 U CN207921265 U CN 207921265U CN 201820346073 U CN201820346073 U CN 201820346073U CN 207921265 U CN207921265 U CN 207921265U
- Authority
- CN
- China
- Prior art keywords
- planetary gear
- differential
- shaft
- gear shaft
- seam allowance
- 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.)
- Expired - Fee Related
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- Retarders (AREA)
Abstract
The utility model is related to vehicle transmission fields, disclose a kind of automobile differential, including differential mechanism left shell, left half axle gear, planetary gear, planetary gear shaft, right axle shaft gear and right differential housing, left half axle gear is axis hole clearance fit with differential mechanism left shell, right axle shaft gear is axis hole clearance fit with right differential housing, left half axle gear, right axle shaft gear are engaged with planetary gear, planetary gear shaft is through differential mechanism left shell and planetary axis hole clearance fit, the left and right shell of differential mechanism is coordinated by seam allowance, is mutually permanently connected.Particularly, the planetary gear shaft hole on differential mechanism left shell is located on cooperation seam allowance, and the seam allowance of right shell body limits planetary gear shaft.The utility model not only eliminates the pivot pin in planetary gear shaft, avoids the risk that pivot pin falls off, and prevents the rotation and abjection of planetary gear shaft, simplifies assembly difficulty.
Description
Technical field
The utility model is related to vehicle transmission fields, more particularly to a kind of automobile differential.
Background technology
By planetary gear shaft installation, there are two opposite planetary gears in the differential mechanism of automobile.Planetary gear shaft is inserted into
On the shell of differential mechanism, to prevent the play of planetary gear shaft, usually radial through-hole, shell are opened up in one end of planetary gear shaft
On be provided with pin hole, planetary gear shaft is mutually fixed with shell by pin.In this fixed form, it is possible that pin
Nail, which loosens, to be easy to be thrown out of, or planetary rotation drives planetary gear shaft to rotate to cut off positioning pin in working because of differential mechanism
Abjection, causes the damage of differential mechanism.
The utility model that Authorization Notice No. is CN202992097U discloses a kind of inner circle by differential mechanism gear ring to row
The structure that star gear shaft is limited, but the near middle in differential mechanism is arranged in the structural requirement gear ring, limit retarder with
The connection of gear ring, meanwhile, when being overhauled to differential mechanism, it is necessary to first remove gear ring, increase the difficulty of repair.
Utility model content
The purpose of this utility model is to overcome the above problem of the existing technology, a kind of convenience, practical is provided
To the structure that planetary gear shaft is fixed, which has the advantages that simply, conveniently, safely.
To achieve the goals above, the utility model provides a kind of automobile differential, including differential mechanism left shell, left half axle
Gear, planetary gear, planetary gear shaft, right axle shaft gear and right differential housing.The left half axle gear and the differential mechanism
Left shell is axis hole clearance fit, and the left half axle gear and right axle shaft gear are engaged with planetary gear, the planetary gear
Axis leads to planetary axis hole clearance fit, the differential mechanism left shell with right differential housing after running through differential mechanism left shell
It is mutually permanently connected after crossing seam allowance cooperation.Particularly, the planetary gear shaft hole on the differential mechanism left shell is located at cooperation seam allowance
On.
Preferably, the seam allowance sagittal plane is cylindrical surface, and the axial width of seam allowance is more than the diameter of planetary gear shaft.
Preferably, the top of the planetary gear shaft is spherical surface, and spherical radius is less than seam allowance cylinder radius.
Preferably, the length of the planetary gear shaft is less than seam allowance cylinder diameter.
Through the above technical solutions, planetary gear shaft can be effectively fixed, the play and pin of planetary gear shaft are avoided
The abjection of pin, is also convenient for the repair of differential mechanism when nail is fixed.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Reference sign
1, differential mechanism left shell, 2, left half axle gear, 3, planetary gear, 4, planetary gear shaft,
5, right differential housing, 6, right axle shaft gear, 7, seam allowance.
Specific implementation mode
Referring to Fig. 1, the automobile differential of the utility model, including differential mechanism left shell 1, left half axle gear 2, planetary gear
3, planetary gear shaft 4, right axle shaft gear 6 and right differential housing 5.
Left half axle gear 2 is axis hole clearance fit with differential mechanism left shell 1, and right axle shaft gear 6 is with right differential housing 5
Axis hole clearance fit, left half axle gear 2 and right axle shaft gear 6 are engaged with planetary gear 3, and planetary gear shaft 4 runs through differential mechanism
After left shell 1 with the axis hole clearance fit of planetary gear 3.Differential mechanism left shell 1 is coordinated with right differential housing 5 by seam allowance 7,
And it is bolted.Relative position offers perforative through-hole on the radial cylinder of seam allowance 7 on differential mechanism left shell 1,
For installing planetary gear shaft 4, the cylinder of the seam allowance 7 of right differential housing 5 is pressed in the top of planetary gear shaft 4, prevents planet
4 axial float of gear shaft.
The diameter that 7 width of seam allowance on differential mechanism left shell 1, right differential housing 5 is more than planetary gear shaft 4 can make planet
Gear shaft holes are entirely located on seam allowance 7, increase fixed effect, also make assembly more convenient.
The top of planetary gear shaft 4 is processed as spherical surface, and spherical radius is slightly smaller than the column of the seam allowance 7 on differential mechanism left shell 1
Radius surface；The cylinder diameter that the length of planetary gear shaft 4 is slightly smaller than the seam allowance 7 on differential mechanism left shell 1 can make the row after assembly
Star gear shaft 4 does not influence the cooperation of left and right shell, but can make the top contact surface of right differential housing 5 and planetary gear shaft 4 compared with
Greatly, preferable fixed effect is played.
As a kind of deformation, also a plane can be processed in the side at the both ends of planetary gear shaft 4, pass through stopping for shell
Mouth 7 pushes down the plane, or the pin of fixed planetary gear shaft 4 is pushed down by the side of the seam allowance 7 of shell, can also play good
Fixation planetary gear shaft 4 technique effect.
Preferred embodiments of the present invention are described in detail above in association with attached drawing, still, in the skill of the utility model
In art conception range, to the simple variant that the technical solution of the utility model is carried out, it should be considered as disclosed in the utility model
Content, belong to the scope of protection of the utility model.
Claims (4)
1. a kind of automobile differential, which is characterized in that including differential mechanism left shell (1), left half axle gear (2), planetary gear
(3), planetary gear shaft (4), right axle shaft gear (6) and right differential housing (5)；
The left half axle gear (2) is axis hole clearance fit, the right axle shaft gear (6) and differential with differential mechanism left shell (1)
Device right shell body (5) is axis hole clearance fit, and the left half axle gear (2) and right axle shaft gear (6) are mutually nibbled with planetary gear (3)
It closes, the planetary gear shaft (4) runs through differential mechanism left shell (1) the axis hole clearance fit with planetary gear (3) afterwards, the differential
Device left shell (1) is mutually permanently connected after being matched by seam allowance (7) with right differential housing (5)；
Planetary gear shaft hole on the differential mechanism left shell (1) is located on seam allowance (7).
2. a kind of automobile differential according to claim 1, which is characterized in that the seam allowance (7) is radially cylindrical surface, institute
The axial width for stating seam allowance (7) is more than the diameter of planetary gear shaft (4).
3. a kind of automobile differential according to claim 1, which is characterized in that the top of the planetary gear shaft (4) is
Spherical surface, spherical radius are less than the cylinder radius of seam allowance (7).
4. a kind of automobile differential according to claim 1, which is characterized in that the length of the planetary gear shaft (4) is small
In the cylinder diameter of seam allowance (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346073.XU CN207921265U (en) | 2018-03-13 | 2018-03-13 | Automobile differential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346073.XU CN207921265U (en) | 2018-03-13 | 2018-03-13 | Automobile differential |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207921265U true CN207921265U (en) | 2018-09-28 |
Family
ID=63599190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820346073.XU Expired - Fee Related CN207921265U (en) | 2018-03-13 | 2018-03-13 | Automobile differential |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207921265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529578A (en) * | 2019-08-13 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of differential assembly |
-
2018
- 2018-03-13 CN CN201820346073.XU patent/CN207921265U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529578A (en) * | 2019-08-13 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of differential assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 Termination date: 20190313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |