CN201526657U - Fully-enclosed differential mechanism - Google Patents
Fully-enclosed differential mechanism Download PDFInfo
- Publication number
- CN201526657U CN201526657U CN2009203129517U CN200920312951U CN201526657U CN 201526657 U CN201526657 U CN 201526657U CN 2009203129517 U CN2009203129517 U CN 2009203129517U CN 200920312951 U CN200920312951 U CN 200920312951U CN 201526657 U CN201526657 U CN 201526657U
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- CN
- China
- Prior art keywords
- gear
- planet carrier
- output shaft
- differential mechanism
- driven 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a fully-enclosed differential mechanism, which comprises a planetary carrier, a planetary carrier front tapered roller bearing, a planetary carrier driven gear, a driven gear bracket, and a planetary mechanism comprising a sun gear output shaft, a sliding geared sleeve, a planetary gear, an annular gear and a geared ring output shaft. The fully-enclosed differential mechanism is characterized in that the sun gear output shaft, planetary gear and the annular gear are engaged with each other, and the annular gear and the geared ring output shaft are connected together through a spline and are arranged inside an inner cavity enclosed by the planetary carrier, the planetary carrier driven gear and the driven gear bracket. The differential mechanism is fully enclosed by the planetary carrier driven gear, and adopts a pair of tapered roller bearings with small dimensions to support the planetary carrier and the driven gear bracket. The differential mechanism has high rated output rotation speed, small axial size and compact structure, so as to meet the requirements for high-speed travelling of vehicles and prolong the service life of a transfer case bearing.
Description
Technical field
The utility model relates to a kind of differential mechanism, specifically be used for the offroad vehicle transfer case assembly in hold full encirclement formula differential mechanism.
Background technique
In the design of offroad vehicle transfer case assembly, differential mechanism adopts external or semi-surrounding formula at present.The external differential mechanism is contained in planet carrier driven gear outside, and the spring bearing of this structure planet carrier follower component is little, but the structure axial dimension is long, and is not compact.Semi-surrounding formula differential mechanism is contained in planet carrier driven gear inside, one end of follower adopts planet carrier to support, the other end directly supports by the tapered roller bearing of a big specification, and this structure axial dimension is short, compact structure, but because the limit speed of big specification tapered roller bearing is little, can not satisfy the galloping requirement, during galloping, this bearing of transfer case turns round under the situation of approaching or the rotating speed that oversteps the extreme limit, reduce the working life of bearing, and transfer case easily breaks down.
Summary of the invention
The purpose of this utility model provides and a kind ofly realizes distribute torque by a certain percentage, and axial dimension is little, and compact structure has the full encirclement formula differential mechanism of higher rated speed.
The utility model comprises planet carrier, planet carrier front cone roller bearing, the planet carrier driven gear, the follower support, tapered roller bearing and the planetary mechanism formed by sun gear output shaft, sliding gear collar, planet wheel shaft, planet wheel, ring gear, gear ring output shaft behind the follower support, it is characterized in that: the sun gear output shaft in the described planetary mechanism, planet wheel, ring gear are meshing with each other, it is as a whole that ring gear and gear ring output shaft are connected by spline, and place the inner chamber that is surrounded by planet carrier, planet carrier follower and follower support.
The planet carrier driven gear is by planet carrier that links with it and follower stent support, and planet carrier and follower support are supported by tapered roller bearing behind planet carrier front cone roller bearing and the follower support respectively.
The utility model is contained in differential mechanism in the planet carrier follower with surrounding entirely, adopts the less tapered roller bearing of a pair of Dimensions to support planet carrier and follower support.The rated speed height, axial dimension is little, compact structure.Make differential mechanism obtaining the specified output speed that less axial dimension has also improved differential mechanism simultaneously, satisfy the galloping requirement, improved the working life of transfer case bearing.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, sun gear output shaft, 2, sliding gear collar, 3, planet carrier front cone roller bearing, 4, planet wheel shaft, 5, planet carrier, 6, planet wheel, 7, ring gear, 8, planet carrier driven gear, 9, planet carrier lid, 10, the gear ring output shaft, 11, gear ring output shaft block bearing, 12, follower support, 13, tapered roller bearing behind the follower support.
Embodiment:
The utility model will be further described below in conjunction with accompanying drawing.
By sun gear output shaft 1, sliding gear collar 2, the planetary mechanism that planet wheel shaft 4, planet wheel 6, ring gear 7, gear ring output shaft 10 are formed is with the full encirclement formula differential mechanism of tapered roller bearing 13 compositions behind planet carrier front cone roller bearing 3, planet carrier 5, planet carrier driven gear 8, planet carrier lid 9, gear ring output shaft 10, gear ring output shaft block bearing 11, follower support 12, the follower support.
Sun gear output shaft 1 in the planetary mechanism and planet wheel 6 engagements, planet wheel 6 and ring gear 7 engagements, it is as a whole that ring gear 7 and gear ring output shaft 10 are connected by spline, and place the inner chamber that is surrounded by planet carrier 5, planet carrier follower 8 and follower support 12.
Planet carrier driven gear (8) is supported by planet carrier that links with it (5) and follower support (12); Planet carrier (5) and follower support (12) are supported by tapered roller bearing (13) behind planet carrier front cone roller bearing (3) and the follower support respectively.
Planet carrier follower 8 passes to planet wheel shaft 4 and planet wheel 6 by the planet carrier 5 that links with it with torsion, and then passes to sun gear output shaft 1 and ring gear 7, and torsion is by a certain percentage by sun wheel shaft 1 and 10 outputs of gear ring output shaft.The planetary mechanism of being made up of sun gear output shaft 1, planet wheel shaft 4, planet wheel 6, ring gear 7, gear ring output shaft 10 is contained in the planet carrier driven gear 8, and planet carrier follower 8 is installed in tapered roller bearing 13 together support behind the follower support on the follower support 12 by being installed in planet carrier front cone roller bearing 3 on the planet carrier 5 and opposite side.This differential mechanism axial dimension is little, and compact structure is simultaneously owing to used the less bearing of Dimensions, the tapered roller bearing size is more little, and its limit speed is high more, so the specified output speed of this differential mechanism improves greatly, when running up, the differential mechanism longer service life.
Claims (2)
1. full encirclement formula differential mechanism, comprise planet carrier (5), planet carrier front cone roller bearing (3), planet carrier driven gear (8), follower support (12), tapered roller bearing behind the follower support (13) and by sun gear output shaft (1), sliding gear collar (2), planet wheel shaft (4), planet wheel (6), ring gear (7), the planetary mechanism that gear ring output shaft (10) is formed, it is characterized in that: the sun gear output shaft in the described planetary mechanism (1), planet wheel (6), ring gear (7) is meshing with each other, it is as a whole that ring gear (7) and gear ring output shaft (10) are connected by spline, and place by planet carrier (5), in the inner chamber that planet carrier driven gear (8) and follower support (12) surround.
2. according to the described differential mechanism of claim 1, it is characterized in that: described planet carrier driven gear (8) is supported by planet carrier that links with it (5) and follower support (12); Planet carrier (5) and follower support (12) are supported by tapered roller bearing (13) behind planet carrier front cone roller bearing (3) and the follower support respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203129517U CN201526657U (en) | 2009-10-21 | 2009-10-21 | Fully-enclosed differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203129517U CN201526657U (en) | 2009-10-21 | 2009-10-21 | Fully-enclosed differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526657U true CN201526657U (en) | 2010-07-14 |
Family
ID=42517943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203129517U Expired - Fee Related CN201526657U (en) | 2009-10-21 | 2009-10-21 | Fully-enclosed differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895127A (en) * | 2015-12-18 | 2017-06-27 | 武藏精密工业株式会社 | Differential gear |
| CN113048213A (en) * | 2021-02-05 | 2021-06-29 | 东风越野车有限公司 | Transfer case planetary gear interaxial differential and gear planet carrier thereof |
-
2009
- 2009-10-21 CN CN2009203129517U patent/CN201526657U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895127A (en) * | 2015-12-18 | 2017-06-27 | 武藏精密工业株式会社 | Differential gear |
| CN113048213A (en) * | 2021-02-05 | 2021-06-29 | 东风越野车有限公司 | Transfer case planetary gear interaxial differential and gear planet carrier thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20141021 |
|
| EXPY | Termination of patent right or utility model |