CN104863979A - Double-eccentric constant velocity universal joint transmission shaft assembly - Google Patents
Double-eccentric constant velocity universal joint transmission shaft assembly Download PDFInfo
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- CN104863979A CN104863979A CN201410057922.6A CN201410057922A CN104863979A CN 104863979 A CN104863979 A CN 104863979A CN 201410057922 A CN201410057922 A CN 201410057922A CN 104863979 A CN104863979 A CN 104863979A
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- constant velocity
- transmission shaft
- eccentric
- universal joint
- velocity universal
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Abstract
The invention discloses a double-eccentric constant velocity universal joint transmission shaft assembly. The assembly consists of a seven-channel birfield ball-joint, an eccentric three-ball pin type constant velocity universal joint, a transmission shaft, a retainer ring, a sealing cover and the like. A star-shaped sleeve and a three-pin frame at two ends both fit outer splines at the two ends of the transmission shaft through inner splines; and constant velocity universal joints at two ends respectively use large and small hoops for clamping rubber sealing covers at the two ends at respective shells and the two ends of the transmission shaft. The assembly can transfer motions and torques when driving and driven shafts synchronously have angular displacements and axial displacements.
Description
Art:
The present invention relates to a kind of driving-shaft assembly, more particularly, when master and slave moving axis has angular displacement and axial displacement simultaneously, the two eccentric constant velocity cardan joint transmission shaft assembly of motion and torque can be transmitted.
Background technique:
The typical structure of constant velocity cardan joint transmission shaft assembly is: fixed type constant velocity cardan joint adds telescopic type constant velocity universal joint and adds transmission shaft and some annexes formed.And the fixed type constant velocity cardan joint of the driving-shaft assembly of conventional construction is generally six channel ball cage type constant velocity universal joints, telescopic type constant velocity universal joint is the three ball pin style constant speed universal joint of conventional construction, three ball pin bearings wherein, three equally distributed balls are symmetric type outer spherical surfaces, operationally come off for preventing needle roller and ball, specialized designs three opening jump rings, are placed in the jump-ring slot on three axle tops respectively, then are press-fitted three back-up rings.The constant velocity cardan joint transmission shaft assembly of this structure, shows there is following deficiency through using:
(1) rzeppa universal joint of conventional construction is six raceway grooves, and the structure of six power transmission steel balls, the parameter of internal structure do not realize optimized design, make bearing capacity low, and steel ball and raceway groove wear and tear and aggravate, and easily occur early failure phenomena.
(2) three ball pin bearing partss of conventional construction are too many, and manufacture cost is high, and assembly process is many and complicated, and efficiency of assembling is low.
(3) ball of three ball pin bearings of conventional construction is symmetrical structure, and bearing capacity is low, if increased in size, by the restriction in whole rzeppa universal joint space, Inner Dimension is difficult to arrange.
(4) the three ball pin style constant speed universal joint part of conventional construction is too many, add the difficulty of cost and assembling, and needle roller easily comes off.
Summary of the invention:
In order to overcome some deficiencies of conventional construction constant velocity cardan joint transmission shaft assembly, the problems such as the present invention is to solve the part that original structure exists is many, manufacture cost is high, and bearing capacity is low, easy inefficacy.Devise a kind of two eccentric constant velocity cardan joint transmission shaft assembly of new structure.
The technical solution adopted for the present invention to solve the technical problems is:
This driving-shaft assembly fixed type constant velocity cardan joint adopts the seven channel ball cage type constant velocity universal joint of seven groups of raceway grooves and steel ball.The three ball pin style constant speed universal joint of telescopic type cancels jump ring and the punching press back-up ring of original structure, and three balls are designed to eccentric outer spherical surface; Centre adds transmission shaft, and for making this assembly realize good sealing, two ends all devise rubber seal cover, and seven raceway groove star sleeves of fixed end and the spider of telescopic type are connect by internal spline and transmission shaft two ends external splines.
The invention has the beneficial effects as follows:
Two eccentric constant velocity cardan joint transmission shaft assembly steadily, flexibly, reliably and accurately can not only transmit motion and torque, and compact structure, rationally, transmission efficiency is high, improves bearing capacity, increases the service life, be convenient to processing, inspection and assembling.
Accompanying drawing illustrates:
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the positive insight structural map of longitudinal direction of the present invention, in figure: (1) seven channel ball cage type constant velocity universal joint; (2) Steel Cable Baffle Ring; (3) the large clip of fixed end; (4) fixed end seal closure; (5) the little clip of fixed end; (6) transmission shaft; (7) the little clip of telescopic end; (8) telescopic end seal closure; (9) the large clip of telescopic end; (10) back-up ring; (11) eccentric three ball pin style constant speed universal joint
Embodiment:
In the drawings: seven channel ball cage type constant velocity universal joint (1), be made up of seven raceway groove outer races, seven raceway groove star sleeves, seven fenestra retainers and seven steel balls.The inner ball surface of seven raceway groove outer races and seven fenestra retainer outer spherical surfaces, seven fenestra retainer inner ball surface and seven raceway groove star sleeve outer spherical surfaces totally four spheres form two groups of spherical pairs of rotating around the same centre of sphere; This centre of sphere overlaps with diaxon intersection point.In the inner ball surface of seven raceway groove outer races and on seven raceway groove star sleeve outer spherical surfaces, equal circumference partially has seven inside and outside raceway grooves, and they contact with 7 steel ball conjugation respectively, to transmit motion and torque.Inside and outside channel center is equal apart from the distance (throw of eccentric) at internal and external spherical surfaces center, and is placed in the both sides of sphere centre respectively.Seven raceway groove star sleeves are connect by the spider of transmission shaft (6) with three ball pin style constant speed universal joint (11).And respectively by Steel Cable Baffle Ring (3) and back-up ring (10) axial locking.Flexible eccentric three ball pin style constant speed universal joint (11), some needle rollers are loaded in the raceway of the two rib of eccentric sphere endless belt, and totally three groups of single needle bearings are assembled on the trisection bearing pin of spider respectively like this.After two ends universal joint installs, refill and join seal closure, respectively by large and small locked clip device at respective shell and transmission shaft two ends.Form two eccentric constant velocity cardan joint transmission shaft assembly of the present invention.
Claims (3)
1. pair eccentric constant velocity cardan joint transmission shaft assembly is made up of fixed type constant velocity cardan joint, telescopic type constant velocity universal joint, transmission shaft, back-up ring, seal closure etc.It is characterized in that: fixed end adopts seven channel ball cage type constant velocity universal joint, telescopic end adopts eccentric three ball pin style constant speed universal joint, and centre is connect by transmission shaft, and there is sealing configuration at two ends, when master and slave moving axis has certain axial displacement and angular displacement simultaneously, motion and torque can be transmitted.
2. the two eccentric constant velocity cardan joint transmission shaft assembly according to claims 1, is characterized in that: fixed type constant velocity cardan joint adopts seven channel constant velocity universal joints.Interior (outward) sphere outer (interior) mating spherical surfaces with seven fenestra retainers respectively of seven raceway groove outer races and star sleeve, thus composition two groups of concentric sphericals are secondary, two channel center are equal with the distance of sphere centre, and being placed in the both sides of sphere centre respectively, star sleeve and transmission shaft pass through spline coupling.
3. the two eccentric constant velocity cardan joint transmission shaft assembly according to claims 1, is characterized in that: telescopic type constant velocity universal joint adopts eccentric three ball pin style constant speed universal joint.Some needle rollers are loaded in being rolled into of the two rib of eccentric sphere endless belt, and three groups of single needle bearings are assembled on the trisection bearing pin of spider respectively, and spider and transmission shaft pass through spline coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057922.6A CN104863979A (en) | 2014-02-20 | 2014-02-20 | Double-eccentric constant velocity universal joint transmission shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057922.6A CN104863979A (en) | 2014-02-20 | 2014-02-20 | Double-eccentric constant velocity universal joint transmission shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863979A true CN104863979A (en) | 2015-08-26 |
Family
ID=53910047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410057922.6A Pending CN104863979A (en) | 2014-02-20 | 2014-02-20 | Double-eccentric constant velocity universal joint transmission shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104863979A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830072A (en) * | 2017-12-21 | 2018-03-23 | 兴化市三诚精密锻造有限公司 | A kind of new internal spherical cage universal joint |
| CN112762104A (en) * | 2021-01-22 | 2021-05-07 | 中国第一汽车股份有限公司 | Cross lane movable universal joint pull-off prevention structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201090623Y (en) * | 2007-09-11 | 2008-07-23 | 石宝枢 | Four ball-pin type constant velocity universal joint |
| JP2008196634A (en) * | 2007-02-14 | 2008-08-28 | Ntn Corp | Fixed type constant velocity universal joint |
| CN201262198Y (en) * | 2008-08-06 | 2009-06-24 | 石宝枢 | Seven channel ball cage type universal joint |
| CN201457054U (en) * | 2009-07-28 | 2010-05-12 | 石宝枢 | Transmission shaft assembly of automobile |
| CN201461765U (en) * | 2009-07-28 | 2010-05-12 | 石宝枢 | Double-seven-raceway constant velocity universal joint transmission shaft assembly |
| CN101966815A (en) * | 2009-07-28 | 2011-02-09 | 石宝枢 | Automobile drive shaft assembly |
| CN101966814A (en) * | 2009-07-28 | 2011-02-09 | 石宝枢 | Double-seven-groove constant velocity universal joint transmission shaft assembly |
-
2014
- 2014-02-20 CN CN201410057922.6A patent/CN104863979A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008196634A (en) * | 2007-02-14 | 2008-08-28 | Ntn Corp | Fixed type constant velocity universal joint |
| CN201090623Y (en) * | 2007-09-11 | 2008-07-23 | 石宝枢 | Four ball-pin type constant velocity universal joint |
| CN201262198Y (en) * | 2008-08-06 | 2009-06-24 | 石宝枢 | Seven channel ball cage type universal joint |
| CN201457054U (en) * | 2009-07-28 | 2010-05-12 | 石宝枢 | Transmission shaft assembly of automobile |
| CN201461765U (en) * | 2009-07-28 | 2010-05-12 | 石宝枢 | Double-seven-raceway constant velocity universal joint transmission shaft assembly |
| CN101966815A (en) * | 2009-07-28 | 2011-02-09 | 石宝枢 | Automobile drive shaft assembly |
| CN101966814A (en) * | 2009-07-28 | 2011-02-09 | 石宝枢 | Double-seven-groove constant velocity universal joint transmission shaft assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830072A (en) * | 2017-12-21 | 2018-03-23 | 兴化市三诚精密锻造有限公司 | A kind of new internal spherical cage universal joint |
| CN112762104A (en) * | 2021-01-22 | 2021-05-07 | 中国第一汽车股份有限公司 | Cross lane movable universal joint pull-off prevention structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150826 |