CN206830756U - Differential design and vehicle - Google Patents
Differential design and vehicle Download PDFInfo
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- CN206830756U CN206830756U CN201720389145.4U CN201720389145U CN206830756U CN 206830756 U CN206830756 U CN 206830756U CN 201720389145 U CN201720389145 U CN 201720389145U CN 206830756 U CN206830756 U CN 206830756U
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Abstract
A kind of differential design and vehicle, the differential design, including differential casing and the planetary gear being placed in differential carrier body, axle shaft gear and adjust pad, planetary gear and axle shaft gear are meshed, adjust pad is arranged on the axle shaft gear side relative with differential casing, the position relative with adjust pad is provided with through hole on differential casing, the first spheroid is provided with through hole, spring and the second spheroid, first spheroid is fixed in through hole, second spheroid coordinates with via clearance, spring is connected between the first spheroid and the second spheroid, spring is in compressive state, second spheroid compresses adjust pad.Differential design provided by the utility model, by setting through hole on differential casing, and install a spring and two spheroids additional in through hole, the decrement of spring is adjusted by the cooperation of two spheroids, to eliminate the Bevel Gear Transmission gap of vehicle differential mechanism in the case of underloading, and solve the problems, such as due to the NVH in vehicle acceleration, deceleration and shift process caused by driveline lash is excessive.
Description
Technical field
Technical field of vehicle is the utility model is related to, and more particularly to a kind of differential design.
Background technology
Differential mechanism is a kind of device with power transmission and power distribution function, its act on be in the process of moving, when
When automobile runs into turning, the rotating speed of inside and outside wheel can be automatically adjusted, to ensure that foreign steamer will not drag on road surface, avoids tire
Abrasion aggravation, so as to ensure the safety coefficient of driving vehicle, improve the service life of decelerator.The bevel gear of existing differential mechanism
Sideshake between (including axle shaft gear and planetary gear) is adjusted using adjust pad, and the sideshake between bevel gear is typically set
In respect of larger surplus.
Fig. 1 is the sectional view of differential design in the prior art, please join Fig. 1, differential design includes differential casing 10
And it is arranged at the first planetary gear 11, the second planetary gear 12, left half axle gear 13, right axle shaft tooth in differential casing 10
Wheel 14 and adjust pad 15, left half axle gear 13 are connected to left half axle 21, and right axle shaft gear 14 is connected to right axle shaft 22, the first row
The planetary gear 12 of star gear 11 and second is connected by fixing axle 16, and fixing axle 16 is connected to differential casing by steady pin 17
On 10, the first planetary gear 11, the second planetary gear 12, left half axle gear 13 and right axle shaft gear 14 are bevel gear.
Clamping stagnation when being operated in the prior art between each bevel gear of prevention, by setting adjust pad 15 to ensure each bevel gear
Between sideshake surplus, adjust pad 15 be arranged on left half axle gear 13 on, specifically, adjust pad 15 is arranged on left half axle tooth
Take turns on 13 sides relative with differential casing 10, but thus also cause differential mechanism to leave gap width L (such as Fig. 2 after the completion of assembling
It is shown), gap L of the vehicle under light condition exists always.Because each bevel gear is using processing is forged, the accuracy of gear is relatively low,
Cause sideshake during engagement between each bevel gear to change greatly, leave larger sideshake plus when designing in addition, it is poor more to increase
The drive gap of fast device assembly；Because differential drive gap is larger, the impact of power train during step gear shifting etc. can have been caused
It is excessive, vehicle can be caused to accelerate, slowed down and NVH (i.e. noise, vibration, acoustic shock roughness) problem in shift process.
Utility model content
The purpose of this utility model is to provide a kind of differential mechanism and vehicle, to solve vehicle in underloading between power train
NVH problems in vehicle acceleration, deceleration and shift process caused by gap is excessive.
The utility model, which solves its technical problem, to be realized using following technical scheme.
The utility model provides a kind of differential design, including differential casing and the planet tooth that is placed in differential carrier body
Wheel, axle shaft gear and adjust pad, planetary gear and axle shaft gear are meshed, and adjust pad is arranged on axle shaft gear and differential mechanism
On the relative side of housing, the position relative with adjust pad is provided with through hole on differential casing, be provided with through hole the first spheroid,
Spring and the second spheroid, the first spheroid are fixed in through hole, and the second spheroid coordinates with via clearance, and spring is connected to the first spheroid
And second between spheroid, spring is in compressive state, and the second spheroid compresses adjust pad.
Further, planetary gear includes the first planetary gear and the second planetary gear, and axle shaft gear includes left half axle tooth
Wheel and right axle shaft gear, left half axle gear are meshed with the first planetary gear and the second planetary gear respectively, right axle shaft gear point
It is not meshed with the first planetary gear and the second planetary gear, adjust pad is separately mounted to left half axle gear and differential casing
On on relative side and side that right axle shaft gear is relative with differential casing.
Further, left half axle gear is connected to left half axle, and right axle shaft gear is connected to right axle shaft, the length direction of through hole
It is parallel with the axial direction of left half axle and right axle shaft.
Further, the quantity of through hole is four, and first spheroid, second spheroid are provided with each through hole
An and spring being arranged between the first spheroid and the second spheroid.
Further, the quantity of adjust pad is four, and two of which adjust pad is arranged on left half axle gear, in addition two
Individual adjust pad is arranged on right axle shaft gear.
Further, the first planetary gear and the second planetary gear are connected by fixed axis connection, fixing axle by steady pin
It is connected on differential casing.
Further, the first spheroid and the second spheroid are steel ball.
The utility model also provides a kind of vehicle, including differential design as described above.
Further, when vehicle is in light condition, a part for the second spheroid is located at outside through hole, adjust pad with it is poor
There is gap between fast device housing；When vehicle is in heavy condition, the second spheroid is moved in through hole, the decrement increase of spring,
Adjust pad is bonded with differential casing.
Differential design provided by the utility model, through hole is provided with differential casing, and installs one additional in through hole
Individual spring and two spheroids, one of spheroid are pressed to through hole, and another spheroid is compressed in adjust pad, passes through two
Spheroid coordinates to adjust the decrement of spring, to eliminate the Bevel Gear Transmission gap of vehicle differential mechanism in the case of underloading, and
Solve the problems, such as due to the NVH in vehicle acceleration, deceleration and shift process caused by driveline lash is excessive.
Brief description of the drawings
Fig. 1 is the cut-away view of differential design in the prior art.
Fig. 2 is the close-up schematic view in Fig. 1.
Fig. 3 is the cut-away view of differential design in the utility model embodiment.
Fig. 4 is Fig. 3 close-up schematic view.
Adjust pad and the relative position of differential casing are shown when Fig. 5 is vehicle light condition in the utility model embodiment
It is intended to.
Adjust pad and the relative position of differential casing are shown when Fig. 6 is vehicle heavy condition in the utility model embodiment
It is intended to.
Embodiment
Further to illustrate that the utility model is to reach technical approach and effect that predetermined purpose of utility model is taken,
Below in conjunction with drawings and Examples, to specific embodiment of the present utility model, structure, feature and its effect, describe in detail such as
Afterwards.
Fig. 3 is the cut-away view of differential design in the utility model, and Fig. 4 is Fig. 3 close-up schematic view.It please join Fig. 3
And Fig. 4, differential design include differential casing 30 and four bevel gears being placed in differential casing 30 and adjust pad 35,
Four bevel gears are respectively the first planetary gear 31, the second planetary gear 32, left half axle gear 33 and right axle shaft gear 34, and a left side is partly
Shaft gear 33 is meshed with the first planetary gear 31 and the second planetary gear 32 respectively, right axle shaft gear 34 respectively with the first planet
The planetary gear 32 of gear 31 and second is meshed.
Left half axle gear 33 is connected to left half axle 41, and right axle shaft gear 34 is connected to right axle shaft 42, the first planetary gear 31
Connected with the second planetary gear 32 by fixing axle 36, fixing axle 36 is connected on differential casing 30 by steady pin 37.
Adjust pad 35 is arranged on left half axle gear 33 and the side relative with differential casing 30 of right axle shaft gear 34,
The position relative with adjust pad 35 is provided with through hole 301 on differential casing 30, and the first spheroid 401, spring are provided with through hole 301
402 and second spheroid 403, the first spheroid 401 be pressed to through hole 301, the first spheroid 401 is fixed in through hole 301, the second ball
Body 403 coordinates with the gap of through hole 301, and the second spheroid 403 may move in through hole 301, and the second spheroid 403 compresses adjust pad
35, spring 402 is connected between the first spheroid 401 and the second spheroid 403, and the both ends of spring 402 bear against the first spheroid 401
With the second spheroid 403.Preferably, the first spheroid 401 and the second spheroid 403 are steel ball.
In the present embodiment, the length direction of through hole 301 is parallel with the axial direction of left half axle 41 and right axle shaft 42, the first spheroid
When in 401 press fitting to through holes 301, spring 402 is in compressive state, and a part for the second spheroid 403 is located at outside through hole 301.
Because being provided with spring 402 between the first spheroid 401 and the second spheroid 403, under the elastic thrust of spring 402, the second spheroid 403
The trend moved with relative length direction of first spheroid 401 along through hole 301 towards adjust pad 35, makes the second spheroid 403
Side away from the first spheroid 401 is pressed in adjust pad 35.
Specifically, in the present embodiment, the quantity of adjust pad 35 is four, and two of which adjust pad 35 is arranged on left half
Shaft gear 33, two adjust pads 35 are symmetrical with respect to left half axle 41；Two other adjust pad 35 is arranged on right axle shaft
Gear 34, two adjust pads 35 are symmetrical with respect to right axle shaft 42.Through hole 301 is equal with the quantity of adjust pad 35,
For four, 401, second spheroids 403 of first spheroid are provided with each through hole 301 and are arranged on the first spheroid
401 and the second spring 402 between spheroid 403.
Adjust pad and the relative position of differential casing are shown when Fig. 5 is vehicle light condition in the utility model embodiment
It is intended to.It please join Fig. 5, vehicle is when in light condition, due to adding the first spheroid 401, spring 402 and in through hole 301
Two spheroids 403, the first spheroid 401 are fixed in through hole 301, and one end of the second spheroid 403 passes through the spheroid of spring 402 and first
401 elastic connections, the other end are pressed in adjust pad 35, and now spring 402 is in compressive state, pre- due to spring 402
Clamp force so that tightly engaged between each bevel gear, so as to eliminate drive gap.
Adjust pad and the relative position of differential casing are shown when Fig. 6 is vehicle heavy condition in the utility model embodiment
It is intended to.Incorporated by reference to Fig. 6, for vehicle when in heavy condition, left half axle gear 33 overcomes the pre- of spring 402 with right axle shaft gear 34
Clamp force, left half axle gear 33 drive adjust pad 35 to extrude the second spheroid 403, the second edge in the presence of extruding force of spheroid 403
Through hole 301 to move towards the first spheroid 401, until adjust pad 35 is bonded with differential casing 30；The band of right axle shaft gear 34
Dynamic adjust pad 35 extrudes the second spheroid 403, and the second spheroid 403 is in the presence of extruding force along through hole 301 towards the first ball
Body 401 moves, until adjust pad 35 is bonded with differential casing 30.Now, the sideshake increase between each bevel gear, Bu Huiyin
Play the NVH problems such as clamping stagnation, noise.
The utility model also provides a kind of vehicle, including differential design as described above.Light condition is in vehicle
When, the spring 402 between the first spheroid 401 and the second spheroid 403 is in compressive state, and the second spheroid 403 is compressed to tune
On whole pad 35, tightly engaged between each bevel gear, have gap between adjust pad 35 and differential casing 30；Vehicle is in weight
During load state, the sideshake increase between each bevel gear, the second spheroid 403 is moved in through hole 301, and the decrement of spring 402 increases
Greatly, adjust pad 35 is bonded with differential casing 30.By adjusting the decrement of spring 402, same change can also be quickly realized
The drive gap requirement of fast device structure matching difference vehicle.
Compared with prior art, differential design provided by the utility model, through hole is provided with differential casing 30
301, and install a spring 402 and two spheroids in the through hole 301 additional, one of spheroid is pressed to fixed in through hole 301, separately
One spheroid is compressed in adjust pad 35 and may move, and the decrement of spring 402 is adjusted by the cooperation of two spheroids, with
The Bevel Gear Transmission gap of vehicle differential mechanism in the case of underloading is eliminated, and solves the vehicle caused by driveline lash is excessive
Accelerate, the NVH problems in deceleration and shift process.
Herein, term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, are removed
Those listed key elements are included, but also the other element being not expressly set out can be included.
Herein, the involved noun of locality such as forward and backward, upper and lower is to be located at parts in accompanying drawing in figure and zero
The mutual position of part is intended merely to the clear of expression technology scheme and conveniently come what is defined.It should be appreciated that the noun of locality
Use should not limit the claimed scope of the application.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (9)
1. a kind of differential design, including differential casing (30) and be placed in the differential casing (30) planetary gear,
Axle shaft gear and adjust pad (35), the planetary gear and the axle shaft gear are meshed, adjust pad (35) installation
On the axle shaft gear and the relative side of the differential casing (30), it is characterised in that the differential casing (30)
It is upper to be provided with through hole (301) with the relative position of the adjust pad (35), in the through hole (301) provided with the first spheroid (401),
Spring (402) and the second spheroid (403), first spheroid (401) are fixed in the through hole (301), second spheroid
(403) coordinate with the through hole (301) gap, the spring (402) is connected to first spheroid (401) and second ball
Between body (403), the spring (402) is in compressive state, and second spheroid (403) compresses the adjust pad (35).
2. differential design as claimed in claim 1, it is characterised in that the planetary gear includes the first planetary gear (31)
With the second planetary gear (32), the axle shaft gear includes left half axle gear (33) and right axle shaft gear (34), the left half axle
Gear (33) is meshed with first planetary gear (31) and second planetary gear (32) respectively, the right axle shaft gear
(34) it is meshed respectively with first planetary gear (31) and second planetary gear (32), the adjust pad (35) point
An Zhuan not be on the left half axle gear (33) and the relative side of the differential casing (30) and the right axle shaft gear
(34) and on the relative side of the differential casing (30).
3. differential design as claimed in claim 2, it is characterised in that the left half axle gear (33) is connected to left half axle
(41), the right axle shaft gear (34) is connected to right axle shaft (42), length direction and the left half axle of the through hole (301)
(41) and the right axle shaft (42) axial direction it is parallel.
4. differential design as claimed in claim 2, it is characterised in that the quantity of the through hole (301) is four, Mei Getong
First spheroid (401) is provided with hole (301), described in second spheroid (403) and one are arranged on
The spring (402) between first spheroid (401) and second spheroid (403).
5. differential design as claimed in claim 4, it is characterised in that the quantity of the adjust pad (35) is four, its
In two adjust pads (35) be arranged on the left half axle gear (33), two other described adjust pad (35) is arranged on
The right axle shaft gear (34).
6. differential design as claimed in claim 2, it is characterised in that first planetary gear (31) and second row
Star gear (32) is connected by fixing axle (36), and the fixing axle (36) is connected to the differential casing by steady pin (37)
(30) on.
7. the differential design as described in any one of claim 1 to 6, it is characterised in that first spheroid (401) and described
Second spheroid (403) is steel ball.
8. a kind of vehicle, it is characterised in that including the differential design as described in any one of claim 1 to 7.
9. vehicle as claimed in claim 8, it is characterised in that when vehicle is in light condition, second spheroid (403)
A part is located at outside the through hole (301), has gap between the adjust pad (35) and the differential casing (30)；Car
When being in heavy condition, second spheroid (403) is moved in the through hole (301), the decrement of the spring (402)
Increase, the adjust pad (35) are bonded with the differential casing (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389145.4U CN206830756U (en) | 2017-04-13 | 2017-04-13 | Differential design and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389145.4U CN206830756U (en) | 2017-04-13 | 2017-04-13 | Differential design and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830756U true CN206830756U (en) | 2018-01-02 |
Family
ID=60768259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720389145.4U Active CN206830756U (en) | 2017-04-13 | 2017-04-13 | Differential design and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206830756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219948A (en) * | 2019-05-20 | 2019-09-10 | 山东大学 | A kind of robot planetary reduction gear |
| CN114135645A (en) * | 2020-09-03 | 2022-03-04 | 大众汽车股份公司 | Differential for a vehicle, in particular for a motor vehicle |
-
2017
- 2017-04-13 CN CN201720389145.4U patent/CN206830756U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219948A (en) * | 2019-05-20 | 2019-09-10 | 山东大学 | A kind of robot planetary reduction gear |
| CN114135645A (en) * | 2020-09-03 | 2022-03-04 | 大众汽车股份公司 | Differential for a vehicle, in particular for a motor vehicle |
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