CN207864456U - A kind of constant velocity driving shaft that four-wheel drive vehicle trailing wheel uses - Google Patents
A kind of constant velocity driving shaft that four-wheel drive vehicle trailing wheel uses Download PDFInfo
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- CN207864456U CN207864456U CN201721923036.2U CN201721923036U CN207864456U CN 207864456 U CN207864456 U CN 207864456U CN 201721923036 U CN201721923036 U CN 201721923036U CN 207864456 U CN207864456 U CN 207864456U
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- ball
- universal joint
- alley
- outer housing
- constant velocity
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Abstract
The utility model discloses a kind of constant velocity driving shafts that four-wheel drive vehicle trailing wheel uses, including first axis mobile model universal joint, jackshaft and the second axial movement type universal joint；The outer housing of first axis mobile model universal joint is internally provided with outer housing ball alley, the outer surface of first axis mobile model universal joint lubrication groove is equipped with corresponding lubrication groove ball alley, this two alley constitutes complete ball alley, ball, the axial movement type universal joint that outer housing, lubrication groove and ball are constituted are equipped in ball alley；Second axial movement type universal joint is identical as the structure of first axis mobile model universal joint；By the way that axial slide type universal joint is arranged at the both ends of constant velocity driving shaft, so that the axial sliding of four-wheel drive vehicle trailing wheel when the vehicle is turning is assigned to two VL type universal joints, reduce the axial skid resistance of trailing wheel constant velocity driving shaft, and avoid generating high frequency resistance and derive from power, improve the comfortableness and security of four-wheel drive vehicle.
Description
Technical field
The utility model is related to a kind of for motor vehicle constant velocity driving shaft, more particularly to a kind of four-wheel drive vehicle trailing wheel uses
Constant velocity driving shaft.
Background technology
Constant velocity driving shaft be the misaligned axis connection of two axis, and make two axis with identical angular speed transmit transport
Dynamic mechanism, effect is that power of engine is delivered from speed changer to automotive wheels；Each wheel of four-wheel drive vehicle
It needs to be connected with gearbox or differential mechanism, so that each wheel has the power of driving vehicle, therefore each wheel
All it is independently arranged constant velocity driving shaft；Constant velocity driving shaft generally includes fixed universal joint, jackshaft, axial movement type universal joint；
The outer housing of axial movement type universal joint is connect with gearbox or differential mechanism；The outer housing of fixed universal joint is connect with wheel,
Jackshaft both ends are connected with the lubrication groove of the lubrication groove of fixed knot and movable joint respectively；The constant velocity driving shaft needs that front vehicle wheel uses are answered
Driving and steering to wheel, therefore, the universal joint for connecting front vehicle wheel use center fixed ball cage type constant velocity cardan joint（BJ types are universal
Section）；The axial direction occurred when other universal joints of connection gearbox or differential mechanism mainly cope with wheel steering and wheel jolts is long
Degree variation, therefore, the universal joint use for connecting gearbox or differential mechanism can axial sliding tripod universal joint（TJ types are universal
Section）, the external ball cage of three ball pin shape universal joints is interior to be equipped with idler wheel alley, and idler wheel rotates in idler wheel alley, the both sides of idler wheel alley
Wall forms idler wheel and constrains so that three ball pin shape universal joints have the function of that axial length variation, three ball pin shape universal joints also have
Certain angle turning function；The constant velocity driving shaft that four-wheel drive vehicle trailing wheel uses is usually to have BJ type universal joint angle turning functions
TJ type universal joints, disadvantage of the prior art is that：Four-wheel drive vehicle trailing wheel when the vehicle is turning do not join by fixed universal joint
With rotation, sliding variation occurs only on axial length, therefore the active force of the Axial changes of rear wheel is all universal by TJ types
Section undertakes, by the direction of relative movement phase of the rotation direction and the wherein side of idler wheel alley of the had idler wheel of TJ type universal joints
Instead, therefore, the resistance in axially sliding is larger, and especially high frequency resistance is larger, after may causing because of high frequency resistance
Wheel constant velocity driving shaft, which generates, derives from power, and shake or vehicle beat occurs so as to cause vehicle chassis, influences the comfortable of vehicle
Property and safety.
Utility model content
The utility model is to overcome above-mentioned defect in the prior art, and being used in the trailing wheel of four-wheel drive vehicle has axis
To the constant velocity driving shaft of Sliding Structures（V L-type constant velocity driving shafts）, the axial skid resistance of trailing wheel constant velocity driving shaft is reduced, and keep away
Exempt to generate high frequency resistance, improves the comfortableness and security of four-wheel drive vehicle.
To achieve the above object, the utility model provides a kind of constant velocity driving shaft that four-wheel drive vehicle trailing wheel uses,
In, including first axis mobile model universal joint, jackshaft and the second axial movement type universal joint, first axis mobile model universal joint
Outer housing be connected with wheel hub, the outer housing of the second axial movement type universal joint is connect with gearbox or differential mechanism, intermediate
Axis both ends are connected with the lubrication groove of the lubrication groove of first axis mobile model universal joint and the second axial movement type universal joint respectively；First
The outer housing inner loop of axial movement type universal joint is arranged at intervals with outer housing ball alley, first axis mobile model ten thousand around axis
It is arranged at intervals with lubrication groove ball alley around axis to the outer surface of section lubrication groove, outer housing ball alley is corresponding with lubrication groove ball alley
Setting, this two alley constitute complete ball alley, ball, the axis that outer housing, lubrication groove and ball are constituted are equipped in ball alley
Movable universal joint is known as VL type universal joints；The structure of second axial movement type universal joint and first axis mobile model universal joint
Structure it is identical, design parameter according to vehicle it is specific needs be respectively set；In Ackermann steer angle, the axis of trailing wheel constant velocity driving shaft
It changes to length, the data of variation are assigned on two axial movement type universal joints at jackshaft both ends, due to ball
Be rolled along alley, therefore between there is only rollings resistance, cause resistance smaller, especially high frequency drag minimization, will not produce
It is raw to derive from power so that shake and vehicle beat thus vehicle chassis will not occur caused by.
In above-mentioned technical proposal, angle at an acute angle between the adjacent ball alley, all ball alleys constitute ring
Z-shaped around entire axial movement type universal joint is distributed, and the spin in ball alley can be taken into account to wheel and provide torque and axis
To mobile smooth, the needs of torque and axial movement of the angle needed for vehicle between adjacent ball alley are set
It sets.
It is further preferred that between the angle between the adjacent ball alley is 32 ° 04 ' to 32 ° 44 ', to ensure
Steel ball is not in the case where steel ball interferes with each other during adjacent two moving on rails, and steel ball smooth cunning in raceway
It moves, attenuating axial force, the direction of active force suffered by steel ball enters ball alley, and ball alley and axial angle no more than rub
Wipe angle twice, VL model universal joint raceway groove angle of frictions are between 8.5 ° -11.5 °, therefore ball alley does not have to axial angle
More than 17 ° -23 °, it is preferable that ball alley and axial direction angle take 16 ° 02 ' to 16 ° 22 ' between, adjacent ball alley it
Between angle be 32 ° 04 ' to 32 ° 44 '.
In above-mentioned technical proposal, the outer housing of the axial movement type universal joint and axial movement type universal joint lubrication groove it
Between be additionally provided with annular ball retainer, ball retainer ring week be equipped with ball retaining hole, ball retaining hole is corresponding with ball,
Ball is in ball retaining hole, the spacing around axial direction between the width and the two-end-point of ball alley of retaining hole transverse direction
It is corresponding so that will not to be interfered with ball retaining hole when ball moves in entire ball alley.
Compared with prior art, the utility model is same by being arranged at the both ends of four-wheel drive vehicle trailing wheel constant velocity driving shaft
The axial slide type universal joint of spline structure so that it is universal that the axial sliding of trailing wheel when the vehicle is turning is assigned to two VL types
Section, reduces the axial skid resistance of trailing wheel constant velocity driving shaft, and avoids generating high frequency resistance and derive from power, improves four-wheel drive vehicle
Comfortableness and security；By setting ball alley to Z-shaped distribution, it can take into account to wheel and torque and axial direction are provided
Mobile is smooth, can also improve the working life of entire VL types universal joint.
Description of the drawings
Fig. 1 is the stereogram for the constant velocity driving shaft that the utility model four-wheel drive vehicle trailing wheel uses（Complete assembly）；
Fig. 2 is the stereogram for the constant velocity driving shaft that the utility model four-wheel drive vehicle trailing wheel uses（First axis moves
The outer housing and dust cover of type universal joint are concealed）；
Fig. 3 is the stereogram for the constant velocity driving shaft that the utility model four-wheel drive vehicle trailing wheel uses（First axis moves
The outer housing and both ends dust cover of type universal joint are concealed）；
Fig. 4 is the stereogram for the constant velocity driving shaft that the utility model four-wheel drive vehicle trailing wheel uses（First, second is axial
The outer housing and both ends dust cover of mobile model universal joint are concealed）；
Fig. 5 is the second axial movement type universal joint of the constant velocity driving shaft that the utility model four-wheel drive vehicle trailing wheel uses
The stereogram of outer housing.
The following drawings is marked to mark on it in conjunction with attached drawing：
1- first axis mobile model universal joints；11- outer housings；12- lubrication grooves；13- balls；The second axial movements of 2- type is universal
Section；21- outer housings；211- outer housing ball alleys；22- lubrication grooves；221- lubrication groove ball alleys；23- balls；24- retainers；
241- ball retaining holes；3- jackshafts；4- dust covers.
Specific implementation mode
Below in conjunction with the accompanying drawings, a specific implementation mode of the utility model is described in detail, it is to be understood that this
The protection domain of utility model is not restricted by specific implementation.
A kind of constant velocity driving shaft that four-wheel drive vehicle trailing wheel uses of the utility model as shown in Fig. 1 to 5, including, first
Axial movement type universal joint 1, jackshaft 3 and the second axial movement type universal joint 2, the shell of first axis mobile model universal joint 1
Body 11 is connected with wheel hub, and the outer housing 21 of the second axial movement type universal joint is connect with gearbox or differential mechanism, jackshaft 3
Both ends are connected with the lubrication groove 22 of the lubrication groove 12 of first axis mobile model universal joint and the second axial movement type universal joint respectively, in
The shell of countershaft 3 and the outer housing 11 and jackshaft 3 and the second axial movement type universal joint 2 of first axis mobile model universal joint 1
It is respectively equipped with dust cover 4 between body 21, prevents the inside of outer housing 11 and outer housing 21 by external contamination；Second axial movement
The structure of type universal joint is identical as the structure of first axis mobile model universal joint, the outer housing 21 of the second axial movement type universal joint
Inner loop is arranged at intervals with outer housing ball alley 211 around axis（Fig. 5）, the appearance of the second axial movement type universal joint lubrication groove 22
Face is arranged at intervals with lubrication groove ball alley 221 around axis（Equally, Fig. 2 to 4 is shown, first axis mobile model universal joint lubrication groove 12
Outer surface be arranged at intervals with lubrication groove ball alley 121 around axis）, outer housing ball alley 211 and lubrication groove ball alley 221 are right
It should be arranged, this two alley constitutes complete ball alley, and ball 23 is equipped in ball alley（Equally, Fig. 2 to 4 shows first axle
Movable universal joint is equipped with ball 13）, the axial movement type universal joint that outer housing 21, lubrication groove 22 and ball are constituted is known as VL types
Universal joint；Design parameter is respectively set according to the specific needs of vehicle.
Further as shown in Fig. 2 to 5, between the adjacent ball alley in 12 surface of lubrication groove of first axis mobile model universal joint
The outer housing of angle at an acute angle, first axis mobile model universal joint is internally provided with corresponding outer housing ball alley（Do not show in figure
Go out）, all ball alley compositions are distributed around the Z-shaped of entire axial movement type universal joint, between adjacent ball alley
Between angle is 32 ° 04 ' to 32 ° 44 '.
Further as shown in Fig. 2 to 5, the outer housing 21 and the second axial movement type of the second axial movement type universal joint are universal
The ball retainer 24 of annular is additionally provided between section lubrication groove 22（The retainer of first axis mobile model universal joint is not shown）, ball
24 ring week of retainer is equipped with ball retaining hole 241, and ball retaining hole 241 is corresponding with ball 23, and ball 23 is protected embedded in ball
It holds in hole 241, it is opposite around axial spacing between the lateral width and the two-end-point of ball alley of ball retaining hole 241
It answers so that will not be interfered with ball retaining hole when ball moves in entire ball alley.
Compared with prior art, the utility model is same by being arranged at the both ends of four-wheel drive vehicle trailing wheel constant velocity driving shaft
The axial slide type universal joint of spline structure so that it is universal that the axial sliding of trailing wheel when the vehicle is turning is assigned to two slide types
Section（VL type universal joints）, the axial skid resistance of trailing wheel constant velocity driving shaft is reduced, and avoid generating high frequency resistance and derive from power, carried
The comfortableness and security of high four-wheel drive vehicle；By setting ball alley to Z-shaped distribution, it can take into account to wheel and carry
For the smooth of torque and axial movement, the working life of entire VL types universal joint can also be improved.
Disclosed above is only a specific embodiment of the utility model, and still, the utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (4)
1. a kind of constant velocity driving shaft that four-wheel drive vehicle trailing wheel uses, which is characterized in that universal including first axis mobile model
Section, jackshaft and the second axial movement type universal joint, the outer housing of first axis mobile model universal joint are connected with wheel hub, the
The outer housing of two axial movement type universal joints is connect with gearbox or differential mechanism, jackshaft both ends respectively with first axis mobile model
The lubrication groove of universal joint is connected with the lubrication groove of the second axial movement type universal joint；In the outer housing of first axis mobile model universal joint
Portion is arranged at intervals with outer housing ball alley around axis, and the outer surface of first axis mobile model universal joint lubrication groove is around axis interval
It is provided with lubrication groove ball alley, outer housing ball alley is correspondingly arranged with lubrication groove ball alley, this two alley constitutes complete rolling
Pearl alley, ball alley is interior to be equipped with ball, the axial movement type universal joint that outer housing, lubrication groove and ball are constituted；Second axial shifting
The structure of ejector half universal joint is identical as the structure of first axis mobile model universal joint.
2. the constant velocity driving shaft that four-wheel drive vehicle trailing wheel according to claim 1 uses, which is characterized in that the phase
Angle at an acute angle between adjacent ball alley, all ball alleys constitute the Z-shaped around entire axial movement type universal joint
Distribution.
3. the constant velocity driving shaft that four-wheel drive vehicle trailing wheel according to claim 2 uses, which is characterized in that the phase
Between angle between adjacent ball alley is 32 ° 04 ' to 32 ° 44 '.
4. the constant velocity driving shaft that four-wheel drive vehicle trailing wheel according to claim 2 uses, which is characterized in that the axis
The ball retainer of annular is additionally provided between the outer housing and axial movement type universal joint lubrication groove of movable universal joint, ball is protected
It holds and is equipped with ball retaining hole in mounting ring week, ball retaining hole is corresponding with ball, and ball is embedded in ball retaining hole, retaining hole
It is corresponding around axial spacing between lateral width and the two-end-point of ball alley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721923036.2U CN207864456U (en) | 2017-12-31 | 2017-12-31 | A kind of constant velocity driving shaft that four-wheel drive vehicle trailing wheel uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721923036.2U CN207864456U (en) | 2017-12-31 | 2017-12-31 | A kind of constant velocity driving shaft that four-wheel drive vehicle trailing wheel uses |
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| Publication Number | Publication Date |
|---|---|
| CN207864456U true CN207864456U (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721923036.2U Active CN207864456U (en) | 2017-12-31 | 2017-12-31 | A kind of constant velocity driving shaft that four-wheel drive vehicle trailing wheel uses |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513401A (en) * | 2019-09-19 | 2019-11-29 | 浙江向隆机械有限公司 | A kind of tripod diverter |
-
2017
- 2017-12-31 CN CN201721923036.2U patent/CN207864456U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513401A (en) * | 2019-09-19 | 2019-11-29 | 浙江向隆机械有限公司 | A kind of tripod diverter |
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