CN203463586U - Planet gear mechanism of differential mechanism - Google Patents
Planet gear mechanism of differential mechanism Download PDFInfo
- Publication number
- CN203463586U CN203463586U CN201320461372.5U CN201320461372U CN203463586U CN 203463586 U CN203463586 U CN 203463586U CN 201320461372 U CN201320461372 U CN 201320461372U CN 203463586 U CN203463586 U CN 203463586U
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- housing
- planet
- planet pin
- differential
- planet gear
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Abstract
The utility model provides a planet gear mechanism of a differential mechanism, relates to the field of mechanical gear transmission and is designed for saving raw materials and reducing the weight of the differential mechanism. The planet gear mechanism of the differential mechanism comprises a housing, a first planet gear and a second planet gear are arranged inside the housing, wherein the first planet gear is connected with the housing through a first planet gear shaft, the second planet gear is connected with the housing through a second planet gear shaft, and an axial gap exists between the first planet gear shaft and the second planet gear shaft. The planet gear mechanism of the differential mechanism is mainly applied to the transmission mechanism of a vehicle.
Description
Technical field
The utility model relates to mechanical gear transmission field, relates in particular to differential pinion gear mechanism.
Background technique
The differential mechanism of applying in vehicle can, in semiaxis transferring power, allow both sides semiaxis with different rotating speed rotations.
Differential mechanism comprises housing, gear ring, two planetary pinions and two differential gears etc., and gear ring is arranged at housing outer surface, and planetary pinion and differential gear are arranged at enclosure interior, and planetary pinion is meshed with differential gear.Planetary pinion is connected with housing by planet pin, and differential gear is nested in the end of stretching into the semiaxis in differential casing.
Differential mechanism gear ring is accepted the power from speed changer, power passes to differential casing by differential mechanism gear ring, differential casing is fixedly connected with planet pin, power is passed to planet pin by differential casing, pass to again planetary pinion, the engagement of planetary pinion and differential gear, power passes to semiaxis by differential gear then, by semiaxis by transmission of power to wheel.When vehicle is kept straight on, the rotating speed of left and right wheels is identical, and the rotating speed of left and right differential gear is identical, and differential gear does not produce relative running with planetary pinion, planetary pinion not rotation on planet pin.Work as Ackermann steer angle, the rotating speed of left and right wheels is different, and the rotating speed of left and right differential gear is different, and differential gear produces relative running with planetary pinion, and planetary pinion is rotation on planet pin.
Differential spider pinion shaft of the prior art is a major axis.This major axis is through two planetary pinions, and two ends are fixed on the housing of planetary pinion both sides.In this structure, the part on planet pin in the middle of two planetary pinions is without any cooperation.In vehicle, use this axle not only to waste raw material, greatly increased the cost of raw material, and be unfavorable for the lightweight of vehicle, be unfavorable for reducing the energy consumption of vehicle.
Model utility content
Embodiment of the present utility model provides a kind of differential pinion gear mechanism, can save raw material, and be conducive to vehicle lightweight.
For achieving the above object, embodiment of the present utility model adopts following technological scheme:
A kind of differential pinion gear mechanism, comprise housing, in described housing, be provided with the first planetary pinion and the second planetary pinion, described the first planetary pinion is connected with described housing by the first planet pin, described the second planetary pinion is connected with described housing by the second planet pin, and described the first planet pin and described the second planet pin are gapped in the axial direction.
Described the first and second planet pins are provided with screw thread with the part that described housing is connected, and described housing is provided with tapped hole, and described the first and second planet pins are connected by screw-thread fit with described housing.
One end that described the first and second planet pins stretch out described outside is provided with nut, and described nut and corresponding described planet pin are structure as a whole.
Described the first and second planet pins are set to optical axis with the part that corresponding described planetary pinion is connected, described the first and second planet pins and corresponding described planetary pinion Spielpassung.
Described the first planet pin is concordant with the side at described the first planetary center near described housing near the one end at the center of described housing, and described the second planet pin is concordant with the side at described the second planetary center near described housing near the one end at the center of described housing.
On described planet pin, be provided with packing ring.
Described packing ring and described nut are structure as a whole.
The differential pinion gear mechanism that the utility model embodiment provides, the first planetary pinion is connected with housing by the first planet pin, the second planetary pinion is connected with housing by the second planet pin, and the first planet pin and the second planet pin are gapped in the axial direction; This has just guaranteed that planet pin needn't extend to the part that between two planetary pinions, nothing coordinates, and the total length of two planet pins has reduced, and has saved raw material, has reduced cost, has alleviated the weight of structure simultaneously, is conducive to the lightweight of vehicle.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment differential pinion gear mechanism general illustration;
Fig. 2 is the planet pin schematic diagram of the utility model embodiment differential pinion gear mechanism.
Reference character:
1-differential casing, 2-planet pin, 21-the first planet pin, 22-the second planet pin, 3-planetary pinion, 31-the first planetary pinion, 32-the second planetary pinion, 4-differential gear, 5-nut, 6-packing ring, 7-planetary pinion shaft rear end, 8-planet pin front end.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment differential pinion gear mechanism is described in detail.
As shown in Figure 1, the differential pinion gear mechanism that the utility model embodiment provides, comprise housing 1, in housing 1, be provided with the first planetary pinion 31 and the second planetary pinion 32, the first planetary pinion 31 is connected with housing 1 by the first planet pin 21, the second planetary pinion 32 is connected with housing 1 by the second planet pin 22, and the first planet pin 21 and the second planet pin 22 are gapped in the axial direction.
Two planetary pinions 3 are connected with housing 1 respectively by two planet pins 2 respectively, compare with the axis that prior art adopts, this structure has guaranteed that planet pin 2 needn't extend between two planetary pinions 3 without the part coordinating, the total length of two planet pins 2 reduces, raw material have been saved, reduce cost, alleviated the weight of structure simultaneously, be conducive to the lightweight of vehicle.
Preferably, the part that the first and second planet pins 21,22 are connected with housing 1 is provided with screw thread, and housing is provided with tapped hole, and the first and second planet pins 21,22 are connected by screw-thread fit with housing 1.Planet pin 2(comprises the first planet pin 21 and the second planet pin 22) be threaded connection with housing 1, rather than use pin to connect, make the processing and assembling between planet pin 2, planetary pinion 3 and housing 1 simple, easy accessibility, employee's labor intensity is lower.
Further, as shown in Figures 1 and 2, the first and second planet pins 21,22 stretch out one end of housing 1 outside, and planet pin front end 8, are provided with nut 5, and nut 5 is structure as a whole with corresponding planet pin 2.Nut 5 can be set to common hexagon nut form, with the structure of planet pin 2 for being fixed as one, can by nut 5, drive the rotation of planet pin 2 like this, makes the dismounting of planet pin 2 more convenient.After assembling completes, nut 5 has the cross-section area more larger than planet pin 2, can by screw thread combination force, mutually push with housing 1, makes planet pin 2 more firm with being connected of housing 1 simultaneously.
Generally speaking, as shown in Figures 1 and 2, the part that the first and second planet pins 21,22 are connected with corresponding planetary pinion 3, planet pin rear end 7, be set to optical axis, and the first and second planet pins 21,22 and corresponding planetary pinion 3 Spielpassung.This structure can guarantee that planetary pinion 3 can rotate comparatively smoothly on planet pin 2, can make like this differential mechanism when regulating the rotating speed of two semiaxis, have less resistance.
Preferably, the first planet pin 21 is concordant with the side at the center of the close housing 1 of the first planetary pinion 31 near the one end at the center of housing 1, and the second planet pin 22 is concordant with the side at the center of the close housing 1 of the second planetary pinion 32 near the one end at the center of housing 1.The side at center that is the end face of planet pin rear end 7 and the close housing 1 of planetary pinion 3 is mutually concordant.In this case, can under the prerequisite of matching requirements that meets planetary pinion 3 and planet pin 2, reduce to greatest extent the length of planet pin 2, also save the most raw material, and then can alleviate to greatest extent differential mechanism weight.
Alternatively, on planet pin, be provided with packing ring 6.Packing ring 6 can pad between housing 1 and nut 5, is generally pancake metal ring, for the protection of the surface of housing 1, by nut 5, is not abraded, and disperses the pressure of 5 pairs of housings 1 of nut.
Particularly, packing ring 6 is structure as a whole with described nut 5.Because packing ring 6 is what be fixed as one with nut 5, when assembling and dismounting, needn't remove specially again to put and remove packing ring 6, can reduce employee's labor intensity.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by the described protection domain with claim.
Claims (7)
1.Yi Zhong differential pinion gear mechanism, comprise housing, in described housing, be provided with the first planetary pinion and the second planetary pinion, it is characterized in that, described the first planetary pinion is connected with described housing by the first planet pin, described the second planetary pinion is connected with described housing by the second planet pin, and described the first planet pin and described the second planet pin are gapped in the axial direction.
2. differential pinion gear according to claim 1 mechanism, it is characterized in that, described the first and second planet pins are provided with screw thread with the part that described housing is connected, described housing is provided with tapped hole, and described the first and second planet pins are connected by screw-thread fit with described housing.
3. differential pinion gear according to claim 2 mechanism, is characterized in that, one end that described the first and second planet pins stretch out described outside is provided with nut, and described nut and corresponding described planet pin are structure as a whole.
4. according to the differential pinion gear mechanism described in claim 2 or 3, it is characterized in that, described the first and second planet pins are set to optical axis with the part that corresponding described planetary pinion is connected, described the first and second planet pins and corresponding described planetary pinion Spielpassung.
5. according to the differential pinion gear mechanism described in claim 1 or 2 or 3, it is characterized in that, described the first planet pin is concordant with the side at described the first planetary center near described housing near the one end at the center of described housing, and described the second planet pin is concordant with the side at described the second planetary center near described housing near the one end at the center of described housing.
6. differential pinion gear according to claim 3 mechanism, is characterized in that, on described planet pin, is provided with packing ring.
7. differential pinion gear according to claim 6 mechanism, is characterized in that, described packing ring and described nut are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461372.5U CN203463586U (en) | 2013-07-30 | 2013-07-30 | Planet gear mechanism of differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461372.5U CN203463586U (en) | 2013-07-30 | 2013-07-30 | Planet gear mechanism of differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463586U true CN203463586U (en) | 2014-03-05 |
Family
ID=50175953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320461372.5U Expired - Fee Related CN203463586U (en) | 2013-07-30 | 2013-07-30 | Planet gear mechanism of differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939939A (en) * | 2017-11-21 | 2018-04-20 | 宁波上中下自动变速器有限公司 | A kind of automobile differential |
-
2013
- 2013-07-30 CN CN201320461372.5U patent/CN203463586U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939939A (en) * | 2017-11-21 | 2018-04-20 | 宁波上中下自动变速器有限公司 | A kind of automobile differential |
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| 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: 20140305 Termination date: 20210730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |