CN103047303B - A kind of constant-velocity universal joint with extension composite spline shaft - Google Patents
A kind of constant-velocity universal joint with extension composite spline shaft Download PDFInfo
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- CN103047303B CN103047303B CN201310010129.6A CN201310010129A CN103047303B CN 103047303 B CN103047303 B CN 103047303B CN 201310010129 A CN201310010129 A CN 201310010129A CN 103047303 B CN103047303 B CN 103047303B
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- splined shaft
- short splined
- rod
- cup
- universal joint
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Abstract
The invention provides a kind of constant-velocity universal joint with extension composite spline shaft, comprise outer race and short splined shaft, described outer race comprises that cup is connected with cup with front end, the body of rod of the driven end spline joint of rear end and short splined shaft, the driven end of described short splined shaft is provided with external splines, the described body of rod is provided with the internal spline coordinated with the external splines of short splined shaft driven end, the drive end of described short splined shaft and differential mechanism or end speed change gear are connected, and the described body of rod is hollow tubular.Alignment error and the locomotive frame in energy effective compensation live axle axial angle direction of the present invention are out of shape the offset deviation caused, vibration damping, repercussion effect are good, possesses superior antivibration effect, improve the Security of live axle entirety, reliability and working life, the allowable torque that hollow tubular improves the outer race body of rod exports and fatigue resistance, has antidetonation, saves material, comprehensive advantage that quality is light.
Description
Technical field
The present invention relates to constant velocity universal joint drive spindle field, be specifically related to a kind of constant-velocity universal joint with extension composite spline shaft.
Background technique
Rzeppa universal joint is most widely used constant velocity universal joint in current automobile driving system, the structural design of constant velocity universal joint except be related to himself usability and except the life-span, also have influence on the overall target of car load drive system.Existing Telescopic constant-velocity universal joint is primarily of outer race, steel ball, retainer, the large parts composition of star sleeve four, the transmission from differential mechanism or end reduction gear motoring torque is completed by the coupled movements pair formed between each large assembly, comprise the action such as change and flexible slip compensation of operating angle, turn round transmission tasks to reach the power met under drive system particular surroundings.Above-mentioned existing Telescopic constant-velocity universal joint structural design exists following a few point defect: the 1. outer race body of rod and cup position forging molding, the body of rod is entity, usage requirement can be met when constant velocity universal joint body of rod length dimension is shorter, but under body of rod size reaches certain length situation, its consumptive material is many, output limit moment is little, the characteristic of antivibration weak effect just comparatively highlights; What 2. the body of rod adopted is external splines structure, owing to easily there is wear out failure with differential mechanism or the end reduction gear external splines carrying out moment transmission that is directly connected, therefore be often subject to the restriction of the body of rod local spline Failure Factors working life of constant velocity universal joint, also have that handling are loaded down with trivial details simultaneously, need that integral replacing is carried out to it after the partial failure of constant velocity universal joint spline, spillage of material is large.Every design factor shows that existing constant velocity universal joint exists restriction, the antivibration weak effect of driving torque, the series of factors such as the life-span is low, dismounting and change is inconvenient, spillage of material is large.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of constant-velocity universal joint with extension composite spline shaft, alignment error and the locomotive frame in energy effective compensation live axle axial angle direction are out of shape the offset deviation caused, also there is the natural frequency of vibration eliminated because of live axle each parts in the process transmitting motion simultaneously and occur that coupling produces the phenomenon of resonance, reduce live axle and damage the efficiency lost efficacy, vibration damping, repercussion effect are good, possess superior antivibration effect, improve the Security of live axle entirety, reliability and working life.
For solving above-mentioned existing technical problem, the present invention adopts following scheme: a kind of constant-velocity universal joint with extension composite spline shaft, comprise outer race and short splined shaft, described outer race comprises that cup is connected with cup with front end, the body of rod of the driven end spline joint of rear end and short splined shaft, the driven end of described short splined shaft is provided with external splines, the described body of rod is provided with the internal spline coordinated with the external splines of short splined shaft driven end, and the drive end of described short splined shaft and differential mechanism or end speed change gear are connected.
As preferably, the drive end of described short splined shaft insert in differential mechanism or end speed change gear with differential mechanism or end speed change gear spline fitted, the drive end of described short splined shaft is provided with external splines, and described differential mechanism or end speed change gear are provided with the internal spline coordinated with the external splines of short splined shaft drive end.
As preferably, described short splined shaft is fixed by bolts on differential mechanism or end speed change gear.
As preferably, described short splined shaft is provided with spring, and described spring top is between short splined shaft and differential mechanism or withstand between short splined shaft and end speed change gear.
As preferably, between the described body of rod and short splined shaft, be provided with plastic sleeve.
As preferably, in described cup, be provided with star sleeve, between described cup and star sleeve, be provided with steel ball, the inwall of described cup and the outer wall of star sleeve are equipped with the alley of accommodating steel ball.
As preferably, described steel ball is constrained between cup and star sleeve by retainer.
As preferably, described steel ball number is 6 and is distributed between cup and star sleeve.
As preferably, described outer race is arranged with bearing unit.
As preferably, the described body of rod is hollow tubular.
As preferably, described cup and the body of rod are linked together by friction welding.
Beneficial effect:
A kind of constant-velocity universal joint with extension composite spline shaft that the present invention adopts technique scheme to provide, has the following advantages:
1, additional bearing component design, alignment error and the locomotive frame in energy effective compensation live axle axial angle direction are out of shape the offset deviation caused, also there is the natural frequency of vibration eliminated because of live axle each parts in the process transmitting motion simultaneously and occur that coupling produces the phenomenon of resonance, reduce live axle and damage the efficiency lost efficacy.
2, compound splined shaft Combination Design, the wearing and tearing of short splined shaft or lower of failure conditions need change it separately, convenient and swift, low consumption environment protection, avoid to change that whole movable joint time loss is grown, material resources wastes large phenomenon in the past; In addition, short splined shaft adopts spring compound design, and vibration damping, repercussion effect are good, reduce the impact failure that live axle in vehicle traveling process is stressed, improve the Security of live axle entirety, reliability and working life.
3, the body of rod adopts the design of hollow tubular friction welding type, alleviate the gross weight of live axle, meet the design concept of lightweight, low energy consumption, the output of hollow rod body moment of torsion and fatigue resistance comparatively the traditional solid pipe body of rod are significantly increased, and also possess superior antivibration effect simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is figure in bulk of the present invention.
Embodiment
As illustrated in fig. 1 and 2, a kind of constant-velocity universal joint with extension composite spline shaft, comprise outer race 4 and short splined shaft 7, described outer race 4 comprises that cup 41 is connected with cup 41 with front end, the body of rod 42 of the driven end spline joint of rear end and short splined shaft 7, the driven end of described short splined shaft 7 is provided with external splines, the described body of rod 42 is provided with the internal spline coordinated with the external splines of short splined shaft 7 driven end, and the drive end of described short splined shaft 7 and differential mechanism or end speed change gear are connected.The drive end of described short splined shaft 7 insert in differential mechanism or end speed change gear with differential mechanism or end speed change gear spline fitted, the drive end of described short splined shaft 7 is provided with external splines, and described differential mechanism or end speed change gear are provided with the internal spline coordinated with the external splines of short splined shaft 7 drive end.Described short splined shaft 7 bolt 9 is fixed on differential mechanism or end speed change gear.Described short splined shaft 7 is provided with spring 8, and described spring 8 withstands between short splined shaft 7 and differential mechanism or withstands between short splined shaft 7 and end speed change gear.Plastic sleeve 6 is provided with between the described body of rod 42 and short splined shaft 7.Be provided with star sleeve 3 in described cup 41, between described cup 41 and star sleeve 3, be provided with steel ball 1, described cup 41 inwall and star sleeve 3 outer wall are equipped with the alley of accommodating steel ball 1.Described steel ball 1 is constrained between cup 41 and star sleeve 3 by retainer 2.Described steel ball 1 quantity is 6 and is distributed between cup 41 and star sleeve 3.Described outer race 4 is arranged with bearing unit 5.Described bearing unit 5 is located on cup 41 or is located on the body of rod 42 or is located at the joint of cup 41 and the body of rod 42.The described body of rod 42 is hollow tubular.Described hollow tubular both ends open.Described cup 41 and the body of rod 42 are linked together by friction welding.
Design principle is as follows:
1, combined type splined shaft Combination Design.The cup of outer race 4, the body of rod and short splined shaft 7 have combined the transmission tasks of moment of torsion.Short splined shaft 7 drive end spline inserts in differential mechanism or end speed change gear internal spline, and is fixed with bolt 9, and then the driven end external splines of short splined shaft 7 is connected with the body of rod internal spline of outer race 4, completes the connection task of short splined shaft 7.The design of short splined shaft 7 adopts the form of additional springs 8, has damping, repercussion effect and reduces well the stressed impact failure of live axle in vehicle traveling process, improves the Security of live axle entirety, reliability and the characteristic in working life.Live axle is under actual entrucking service condition, the long limit torque value that it can bear of the body of rod 42 of outer race 4 is less, and splined end belongs to damageable zone, adopt the design of short splined shaft composite structure can well solve this restraining factors, only need change it in the wearing and tearing of short splined shaft or when losing efficacy, convenient and swift and avoid the waste in the past changing the loaded down with trivial details of whole live axle and resource.
2, the body of rod 42 of outer race 4 adopts hollow tubular, and cup 41 and the body of rod 42 adopt friction welding type to design.Adopt friction-welding technique effectively can ensure the quality of welding part, the allowable torque that the use of hollow tubular improves the outer race body of rod especially exports and fatigue resistance, also has antidetonation simultaneously, saves material, comprehensive advantage that quality is light.
3, additional bearing assembly 5 designs.Effectively avoid because in the natural frequency of vibration transmitting each parts in movement process, live axle occurs that coupling produces resonance, occur the phenomenon that parts damages were lost efficacy, bearing unit 5 can effectively be revised it, eliminates resonance hidden danger; In addition, bearing unit 5 also has and compensates the alignment error in live axle axial angle direction and locomotive frame is out of shape the features such as the offset deviation caused.
Claims (7)
1. a constant-velocity universal joint with extension composite spline shaft, it is characterized in that: comprise outer race (4) and short splined shaft (7), described outer race (4) comprises cup (41) and is connected with cup (41) with front end, the body of rod (42) of the driven end spline joint of rear end and short splined shaft (7), described cup (41) and the body of rod (42) are linked together by friction welding, the driven end of described short splined shaft (7) is provided with external splines, the described body of rod (42) is provided with the internal spline coordinated with the external splines of short splined shaft (7) driven end, the drive end of described short splined shaft (7) and differential mechanism or end speed change gear are connected, described short splined shaft (7) is provided with spring (8), described spring (8) withstands between short splined shaft (7) and differential mechanism or withstands between short splined shaft (7) and end speed change gear, described outer race (4) is arranged with bearing unit (5).
2. a kind of constant-velocity universal joint with extension composite spline shaft according to claim 1, it is characterized in that: the drive end of described short splined shaft (7) insert in differential mechanism or end speed change gear with differential mechanism or end speed change gear spline fitted, the drive end of described short splined shaft (7) is provided with external splines, described differential mechanism or end speed change gear are provided with the internal spline coordinated with the external splines of short splined shaft (7) drive end, and described short splined shaft (7) is fixed on differential mechanism or end speed change gear with bolt (9).
3. a kind of constant-velocity universal joint with extension composite spline shaft according to claim 1 and 2, is characterized in that: be provided with plastic sleeve (6) between the described body of rod (42) and short splined shaft (7).
4. a kind of constant-velocity universal joint with extension composite spline shaft according to claim 1 and 2, it is characterized in that: in described cup (41), be provided with star sleeve (3), be provided with steel ball (1) between described cup (41) and star sleeve (3), the inwall of described cup (41) and the outer wall of star sleeve (3) be equipped with the alley of accommodating steel ball (1).
5. a kind of constant-velocity universal joint with extension composite spline shaft according to claim 4, is characterized in that: described steel ball (1) is constrained between cup (41) and star sleeve (3) by retainer (2).
6. a kind of constant-velocity universal joint with extension composite spline shaft according to claim 4, is characterized in that: described steel ball (1) quantity is 6 and is distributed between cup (41) and star sleeve (3).
7. a kind of constant-velocity universal joint with extension composite spline shaft according to claim 1 and 2, is characterized in that: the described body of rod (42) is hollow tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010129.6A CN103047303B (en) | 2013-01-10 | 2013-01-10 | A kind of constant-velocity universal joint with extension composite spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010129.6A CN103047303B (en) | 2013-01-10 | 2013-01-10 | A kind of constant-velocity universal joint with extension composite spline shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103047303A CN103047303A (en) | 2013-04-17 |
| CN103047303B true CN103047303B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310010129.6A Active CN103047303B (en) | 2013-01-10 | 2013-01-10 | A kind of constant-velocity universal joint with extension composite spline shaft |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061249A (en) * | 2014-06-27 | 2014-09-24 | 苏州市海神达机械科技有限公司 | Universal extensible joint |
| CN113719549B (en) * | 2021-08-04 | 2022-06-10 | 东风汽车集团股份有限公司 | Driving shaft system with slippage compensation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2314145Y (en) * | 1997-11-18 | 1999-04-14 | 孙茂藤 | Cross axial twin universal shaft coupling |
| CN102352891A (en) * | 2011-10-22 | 2012-02-15 | 襄阳博亚精工装备股份有限公司 | Synchronous universal coupling with three middle-supporting type ball cage joints |
| CN202203294U (en) * | 2011-08-28 | 2012-04-25 | 襄阳博亚精工装备股份有限公司 | Quick-change type ball-cage universal coupling |
| CN202991914U (en) * | 2013-01-10 | 2013-06-12 | 浙江欧迪恩传动科技股份有限公司 | Constant velocity universal joint of telescopic composite spline shaft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008007153B4 (en) * | 2008-01-31 | 2010-06-02 | Voith Patent Gmbh | Length adjustable shaft |
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2013
- 2013-01-10 CN CN201310010129.6A patent/CN103047303B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2314145Y (en) * | 1997-11-18 | 1999-04-14 | 孙茂藤 | Cross axial twin universal shaft coupling |
| CN202203294U (en) * | 2011-08-28 | 2012-04-25 | 襄阳博亚精工装备股份有限公司 | Quick-change type ball-cage universal coupling |
| CN102352891A (en) * | 2011-10-22 | 2012-02-15 | 襄阳博亚精工装备股份有限公司 | Synchronous universal coupling with three middle-supporting type ball cage joints |
| CN202991914U (en) * | 2013-01-10 | 2013-06-12 | 浙江欧迪恩传动科技股份有限公司 | Constant velocity universal joint of telescopic composite spline shaft |
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| Publication number | Publication date |
|---|---|
| CN103047303A (en) | 2013-04-17 |
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