CN202441737U - Ball cage type universal joint - Google Patents
Ball cage type universal joint Download PDFInfo
- Publication number
- CN202441737U CN202441737U CN2012200730392U CN201220073039U CN202441737U CN 202441737 U CN202441737 U CN 202441737U CN 2012200730392 U CN2012200730392 U CN 2012200730392U CN 201220073039 U CN201220073039 U CN 201220073039U CN 202441737 U CN202441737 U CN 202441737U
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- universal joint
- ball
- star
- wheel
- star wheel
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Abstract
The utility model relates to a universal driving mechanism and particularly relates to a ball cage type universal joint. A technical scheme of the ball cage type universal joint is as follows: the ball cage type universal joint comprises a bell-shaped shell, and an inner star wheel and a plurality of steel balls which are arranged inside the bell-shaped shell, wherein the inner wall of the bell-shaped shell is provided with a plurality of shell ball grooves which are uniformly distributed along the peripheral direction; the inner star wheel is provided with a driving shaft connection hole positioned in the axial middle of the inner star wheel; spherical surface arrangement is adopted by the periphery surface of the inner star wheel; the periphery surface of the inner star wheel is provided with ball sockets which are arranged along the peripheral direction of the inner star wheel and correspond to the locations of the shell ball grooves; and the bottom of each ball socket is provided with an elastic piece for enabling the steel balls to be fit with the inner wall of the shell ball grooves. Compared with the prior art, the ball cage type universal joint has the following advantages: a retainer and a star sleeve are replaced by the star wheel, the structure is simple, the processing is convenient, and the production cost is lowered due to omission of special equipment; and meanwhile the number of parts and the assembly work procedures are reduced and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of universal transmission mechanism, is specifically related to a kind of rzeppa universal joint.
Background technique
Rzeppa universal joint is a kind of constant velocity universal joint, has stable the reaching of transmission and shakes advantages such as little, is used in the car drivetrain system, and effectively the smooth transfer automobile power is eliminated the micro-displacement that the wheel in the vehicle traveling process produces because of reasons such as road conditions.
As depicted in figs. 1 and 2; Existing rzeppa universal joint generally comprises outer race 1 and is positioned at the retainer 11 of outer race, steel ball 13, star sleeve 12; Outer race 1 inwall is provided with six road housing alleys 10; Retainer 11 is provided with six and supplies steel ball 13 hard-wired fenestras 110, and star sleeve 12 outer walls are provided with six road star sleeve alleys 120, and inwall is fixedly connected with transmission shaft 14 through spline; When universal joint rotated, steel ball moved in housing alley and star sleeve alley and transmitting torque is realized transmission.There is following defective in the structure setting of existing rzeppa universal joint: 1) for guaranteeing that steel ball is positioned at a plane and retainer can be got back to initial position after deflection; Retainer adopts certain eccentric structure setting; The retainer complex structure; Need special device processing, exist the retainer difficulty of processing big, the shortcoming that processing cost is high; 2) retainer and star sleeve split are provided with, and exist requirement on machining accuracy high, and assembling difficulty is big.
Summary of the invention
To the deficiency that existing technology exists, it is a kind of simple in structure, easy to process that the purpose of the utility model is to provide, the rzeppa universal joint that cost of production is low.
For realizing above-mentioned purpose; The utility model provides following technological scheme: a kind of rzeppa universal joint; Include outer race and be located at star-wheel, the some steel balls in the outer race; The outer race inwall is provided with some housing alleys, it is characterized in that: described star-wheel is provided with and is positioned at the axially transmission shaft attachment hole at middle part of star-wheel, and the circumferential surface of star-wheel is the sphere setting; The star-wheel circumferential surface be provided with along the circumferential distributed and arranged of star-wheel and with the corresponding ball-and-socket in housing alley position, said ball-and-socket bottom is provided with the elastic component that makes steel ball applying housing alley inwall.
Described elastic component is a pressure spring.
Described outer race inwall upper edge circumferentially is evenly equipped with six housing alleys, on the corresponding steel ball holding part also along circumferentially being evenly equipped with six ball-and-sockets.
Through adopting technique scheme; Star-wheel has star sleeve and retainer function; Steel ball is by in the fixing plane of steel ball holding part, and the elastic component in the ball-and-socket makes steel ball reliably be positioned at the housing alley, after the universal joint deflection under the effect of alley steel ball reset; The reliable transmission of universal joint is guaranteed in steel ball unrestricted motion in the housing alley; The structure of this universal joint compared with prior art adopts star-wheel to replace retainer and star sleeve setting, has reduced number of parts, reduce production costs and the universal joint assembling convenient, star-wheel is simple in structure simultaneously, reduces each part processing precision, processes easy.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the rzeppa universal joint structural representation of existing technology;
Fig. 2 is the retainer structural representation of the rzeppa universal joint of existing technology;
Fig. 3 is the rzeppa universal joint structural representation of the utility model;
Fig. 4 is the rzeppa universal joint of the utility model structural representation under the state that turns an angle;
Fig. 5 is the star-wheel half sectional view (vertically analysing and observe) of the rzeppa universal joint of the utility model;
Fig. 6 is the A-A sectional view of Fig. 5.
Embodiment
To shown in Figure 6, the disclosed a kind of rzeppa universal joint of the utility model includes outer race 2 and is located at star-wheel 3, the some steel balls 4 in the outer race 2 like Fig. 3; Outer race 2 inwalls are provided with the housing alley 21 that some edges circumferentially are uniformly distributed with setting; Described star-wheel 3 is provided with transmission shaft attachment hole 31, and transmission shaft attachment hole 31 is positioned at axially middle part of star-wheel 3, and star-wheel 3 is set on the transmission shaft 6 and through spline 7 through transmission shaft attachment hole 31 and is fixedly connected with transmission shaft 6; The circumferential surface of star-wheel 3 is the sphere setting, and star-wheel 3 circumferential surfacies are provided with and supply steel ball 4 adaptive installations and the ball-and-socket 32 corresponding with housing alley 21 positions, and ball-and-socket 32 radially is provided with and circumferentially distributes along star-wheel 3 towards star-wheel 3; Said ball-and-socket 32 bottoms are provided with the elastic component that makes steel ball 4 applying housing alleys 21 inwalls, and elastic component is a pressure spring 5; The function that star-wheel 3 has retainer and star sleeve is set down like this, compared with prior art, reduces number of parts, reduce cost; Part assembling difficulty that also reduces and machining accuracy for each part is accurately assembled; Saved former nonconcentric cage processing, need not to adopt special device processing, part processing is more convenient, cuts down finished cost and tooling cost.
The material of the star-wheel 3 in the present embodiment can also can be with materials such as Bearing Steels with resin.The universal joint of present embodiment is six road ditch rzeppa universal joints, and described outer race 2 inwall upper edges circumferentially are evenly equipped with six road housing alleys 21, also along circumferentially being evenly equipped with six ball-and-sockets 32, is provided with a steel ball 4 in each ball-and-socket 32 on the corresponding star-wheel 3.Certainly the universal joint of the utility model not only is confined to six road ditch rzeppa universal joints, can also be rzeppa universal joints (can the alley number be set according to actual conditions) such as seven Dao Gou, eight road ditches.
The universal joint working principle of the utility model is: when constant velocity universal joint does not have deflection (like Fig. 3); Steel ball 4 is positioned at a plane; Ball-and-socket 32 by housing alley on outer race 2 inwalls 21 and star-wheel 3 is fixing, and spring 5 is in compressive state and pushes steel ball 4 to housing alley 21 inwalls; When constant velocity universal joint deflection (like Fig. 4), spring 5 opens promotion steel ball 4 and in housing alley 21, moves, and guarantees that steel ball 4 is in the housing alley 21 all the time; When universal joint resets, pushed back ball-and-socket 32 bottoms once more at the restriction lower spring 5 of raceway groove, steel ball 4 is got back to initial position, goes round and begins again and accomplishes the universal transmission of universal joint.
Claims (3)
1. rzeppa universal joint; Include outer race and be located at star-wheel, the some steel balls in the outer race; The outer race inwall is provided with some housing alleys, it is characterized in that: described star-wheel is provided with and is positioned at the axially transmission shaft attachment hole at middle part of star-wheel, and the circumferential surface of star-wheel is the sphere setting; The star-wheel circumferential surface be provided with along the circumferential distributed and arranged of star-wheel and with the corresponding ball-and-socket in housing alley position, said ball-and-socket bottom is provided with the elastic component that makes steel ball applying housing alley inwall.
2. rzeppa universal joint according to claim 1 is characterized in that: described elastic component is a pressure spring.
3. rzeppa universal joint according to claim 1 and 2 is characterized in that: described outer race inwall upper edge circumferentially is evenly equipped with six housing alleys, on the corresponding star-wheel circumferential surface also along circumferentially being evenly equipped with six ball-and-sockets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200730392U CN202441737U (en) | 2012-03-01 | 2012-03-01 | Ball cage type universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200730392U CN202441737U (en) | 2012-03-01 | 2012-03-01 | Ball cage type universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441737U true CN202441737U (en) | 2012-09-19 |
Family
ID=46823189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200730392U Expired - Fee Related CN202441737U (en) | 2012-03-01 | 2012-03-01 | Ball cage type universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441737U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154136A (en) * | 2014-08-19 | 2014-11-19 | 盐城工学院 | Novel rzeppa universal joint |
| CN107433540A (en) * | 2017-09-07 | 2017-12-05 | 上海精智实业股份有限公司 | A kind of clamping device |
| CN107882889A (en) * | 2017-02-11 | 2018-04-06 | 胡彦萍 | A kind of sensor flexible clutch |
| CN111473060A (en) * | 2019-01-08 | 2020-07-31 | 浙江安尼智能门窗有限公司 | Small universal coupling |
-
2012
- 2012-03-01 CN CN2012200730392U patent/CN202441737U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154136A (en) * | 2014-08-19 | 2014-11-19 | 盐城工学院 | Novel rzeppa universal joint |
| CN107882889A (en) * | 2017-02-11 | 2018-04-06 | 胡彦萍 | A kind of sensor flexible clutch |
| CN107433540A (en) * | 2017-09-07 | 2017-12-05 | 上海精智实业股份有限公司 | A kind of clamping device |
| CN107433540B (en) * | 2017-09-07 | 2022-11-08 | 上海精智实业股份有限公司 | Clamping device |
| CN111473060A (en) * | 2019-01-08 | 2020-07-31 | 浙江安尼智能门窗有限公司 | Small universal coupling |
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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: 20120919 Termination date: 20200301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |