CN104863980A - Transmission shaft assembly of double-seven-combination channel ball cage type constant velocity universal joint - Google Patents
Transmission shaft assembly of double-seven-combination channel ball cage type constant velocity universal joint Download PDFInfo
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- CN104863980A CN104863980A CN201410057926.4A CN201410057926A CN104863980A CN 104863980 A CN104863980 A CN 104863980A CN 201410057926 A CN201410057926 A CN 201410057926A CN 104863980 A CN104863980 A CN 104863980A
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- constant velocity
- velocity universal
- raceway groove
- universal joint
- transmission shaft
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Abstract
A transmission shaft assembly of a double-seven-combination channel constant velocity universal joint is composed of a seven-combination channel ball cage type constant velocity universal joint, a seven-channel dual-offset type constant velocity universal joint, a transmission shaft, sealing covers, clamps, check rings and the like. Starlike sleeves at the two ends are matched with involute outer splines at the two ends of the transmission shaft through involute inner splines, and the sealing covers of the constant velocity universal joints at the two ends are clamped on corresponding shells of the constant velocity universal joints and the two ends of the transmission shaft respectively through the large clamps and the small clamps, so that when angular displacement and axial displacement exist in a driving shaft and a driven shaft at the same time, motion and torque can be transmitted.
Description
Art:
The present invention relates to a kind of driving-shaft assembly, more particularly, when master and slave moving axis has certain angular displacement and axial displacement simultaneously, two seven combination channel constant velocity universal joint driving-shaft assemblies 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, then adds transmission shaft and some annexes formed.The modal concrete structure of this structural type is: six channel ball cage type constant velocity universal joints add six channel double offset formula constant velocity universal joints, then add transmission shaft and some annexes.The constant velocity cardan joint transmission shaft assembly of this conventional construction, shows through long-term use, has following deficiency:
(1) rzeppa universal joint of conventional construction is six steel balls, the structure of six groups of raceway grooves, and inside does not realize optimized design, makes bearing capacity low, and steel ball and raceway groove wear and tear and aggravate, and physical dimension is huge, easily occurs early failue.
(2) due to the bias of outer race and star sleeve raceway groove and its internal and external spherical surfaces, cause outer race and star sleeve raceway groove end walls thickness ununiformity, make wall thickness thin location very easily produce wearing and tearing and lose efficacy.
(3) owing to there is throw of eccentric, for processing, detection and assembling bring very large difficulty.
(4) owing to being with the outer race of throw of eccentric and star sleeve wall unevenness, very easily produce that heat-treated sturcture is uneven, hardness is uneven, the defect such as distortion and crackle.
(5) the double-offset constant velocity universal joint of conventional construction is also the structure of six steel balls, six groups of raceway grooves, inside does not realize optimized design, physical dimension, steel ball quantity and stress is made not to realize science, reasonable, best coupling, steel ball and raceway groove are worn and torn aggravate, physical dimension is huge, bearing capacity is low, easily occur early failue, not shock-resistant load.
Summary of the invention:
In order to overcome some deficiencies of conventional construction constant velocity cardan joint transmission shaft assembly, the present invention is to solve the unreasonable structure that original structure exists, the problems such as bearing capacity is low, easy inefficacy, devise a kind of two seven combination channel constant velocity universal joint driving-shaft assemblies of new structure.
The technical solution adopted for the present invention to solve the technical problems is:
Fixed type constant velocity cardan joint adopts seven channel constant velocity universal joints of seven steel balls and seven groups of raceway grooves, and outer race overlaps with star sleeve channel center, and internal and external spherical surfaces is eccentric; Telescopic type constant velocity universal joint adopts the 7-channel double offset formula constant velocity universal joint of seven steel balls and seven groups of raceway grooves; Centre adds transmission shaft, and for making this assembly realize good sealing, two ends all devise rubber seal cover, and two ends seven raceway groove star sleeve is all connect by internal spline and transmission shaft two ends external splines.
The invention has the beneficial effects as follows:
Two seven combination channel constant velocity universal joint driving-shaft assemblies can not only steadily, flexibly, reliably and accurately transmit motion and torque, and compact structure, rationally, transmission efficiency is high, improves bearing capacity, increases the service life, and are convenient to processing, detect and assemble.
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 combination channel ball cage type 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) 7-channel double offset formula constant velocity universal joint
Embodiment:
In the drawings: seven combinations channel ball cage type universal joint (1), are made up of seven raceway groove outer races, seven raceway groove star sleeves, seven fenestra nonconcentric cages and seven steel balls etc.Seven raceway groove outer races and seven raceway groove star sleeve channel center overlap, and raceway groove element line is that straight line and circular arc are combined.The inner ball surface of outer race has a throw of eccentric apart from channel center, star sleeve outer spherical surface centre distance channel center also has a throw of eccentric, these two throw of eccentric are equal, and in seven raceway groove outer race inner ball surface and seven raceway groove star sleeve outer spherical surfaces, all circumference partially has plain line is seven raceway grooves that straight line adds circular arc.They contact with seven steel ball conjugation respectively, seven raceway groove outer race inner ball surface and seven fenestra nonconcentric cage outer spherical surface Spielpassung, seven raceway groove star sleeve outer spherical surfaces and seven fenestra nonconcentric cage inner ball surface Spielpassung, the internal and external spherical surfaces center of seven fenestra nonconcentric cages is placed in the both sides of fenestra center (widthwise central) respectively, and apart from equal.The circumferentially seven decile fenestras of seven fenestra nonconcentric cages clamp seven steel balls respectively in respective raceway groove, realize the function of transmitting torque.The 7-channel double offset formula constant velocity universal joint (11) of telescopic end, is made up of seven raceway groove cylinder outer races, seven raceway groove star sleeves, seven steel balls and seven fenestra nonconcentric cages etc.Seven raceway groove cylinder outer races within it on cylndrical surface circumference partially have seven with axis being parallel and sectional shape for about steel ball centrosymmetric pair of eccentric arc raceway groove; Equally, seven raceway groove star sleeves on its outer spherical surface also circumference partially have seven with axis being parallel and the outer raceway groove identical with seven raceway groove cylinder outer race channels cross-section; The internal and external spherical surfaces of seven fenestra nonconcentric cages is placed in the both sides at fenestra (and steel ball) center respectively, and this distance (title throw of eccentric) is equal, correspondingly, seven fenestra nonconcentric cages circumferentially also have seven fenestras, for clamping seven steel balls respectively.The outer spherical surface of seven fenestra nonconcentric cages and seven raceway groove cylinder outer race inner cylindrical surface Spielpassung, seven fenestra nonconcentric cage inner ball surface coordinate with seven raceway groove star sleeve outer spherical surfaces.To realize the function of the transmission campaign of telescopic type constant velocity universal joint and torque.The seven raceway groove star sleeves at two ends are all connect by the involute outer spline at involute inner spline and transmission shaft (6) two ends, respectively by Steel Cable Baffle Ring (3) and back-up ring (10) axial locking.After two ends constant velocity universal joint installs, more respectively fitting tight cover, respectively by the large and small locked clip device in two ends at respective seven channel envelope and transmission shaft (6) two ends.Form two seven combination channel constant velocity universal joint driving-shaft assemblies of the present invention.When realizing having certain angular displacement and axial displacement at the same time, can steadily, flexibly, reliably, accurately transmit the function of motion and torque.
Claims (3)
1. pair seven combination channel constant velocity universal joint driving-shaft assemblies, are made up of seven combination channel ball cage type constant velocity universal joints, 7-channel double offset constant velocity universal joint, transmission shaft, back-up ring, seal closure etc.It is characterized in that: fixed end adopts seven combination channel ball cage type constant velocity universal joints, and telescopic end adopts 7-channel double offset formula constant velocity 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 angular displacement and axial displacement simultaneously, motion and torque can be transmitted.
2. the two seven combination channel constant velocity universal joint driving-shaft assemblies according to claims 1, is characterized in that: seven combination channel ball cage type constant velocity universal joints of fixed end are made up of seven raceway groove outer races, seven raceway groove star sleeves, seven fenestra nonconcentric cages and seven steel balls.Seven raceway groove outer races and seven raceway groove star sleeve channel center overlap, and raceway groove element line is that straight line and circular arc are combined, seven raceway groove outer race inner ball surface coordinate with seven fenestra nonconcentric cage outer spherical surfaces, seven raceway groove star sleeve outer spherical surfaces coordinate with seven fenestra nonconcentric cage inner ball surface, two sphere centre are contrary apart from fenestra centre distance equal and opposite in direction, direction, and the fixed end of seven raceway groove star sleeves and transmission shaft passes through spline coupling.
3. the two seven channel constant velocity universal joint driving-shaft assemblies according to claims 1, it is characterized in that: telescopic end 7-channel double offset formula constant velocity universal joint, be made up of seven raceway groove cylinder outer races, seven raceway groove star sleeves, seven fenestra nonconcentric cages and seven steel balls etc., the plain line of inside and outside seven raceway grooves is the straight line with axis being parallel, on the contrary, the telescopic end of seven raceway groove star sleeves and transmission shaft passes through spline coupling for seven fenestra nonconcentric cage internal and external spherical surfaces centre distance fenestra centre distance equal and opposite in directions, direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057926.4A CN104863980A (en) | 2014-02-20 | 2014-02-20 | Transmission shaft assembly of double-seven-combination channel ball cage type constant velocity universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057926.4A CN104863980A (en) | 2014-02-20 | 2014-02-20 | Transmission shaft assembly of double-seven-combination channel ball cage type constant velocity universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863980A true CN104863980A (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410057926.4A Pending CN104863980A (en) | 2014-02-20 | 2014-02-20 | Transmission shaft assembly of double-seven-combination channel ball cage type constant velocity universal joint |
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| CN (1) | CN104863980A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269725A (en) * | 2017-06-13 | 2017-10-20 | 北京新能源汽车股份有限公司 | A kind of drive shaft assembly and automobile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363482A (en) * | 2008-08-18 | 2009-02-11 | 石宝枢 | 7-channel double offset cardan joint |
| CN201262198Y (en) * | 2008-08-06 | 2009-06-24 | 石宝枢 | Seven channel ball cage type universal joint |
| CN201262199Y (en) * | 2008-08-18 | 2009-06-24 | 石宝枢 | Seven-channel double-offset type universal joint |
| CN201461765U (en) * | 2009-07-28 | 2010-05-12 | 石宝枢 | Double-seven-raceway constant velocity universal joint transmission shaft assembly |
| CN101966814A (en) * | 2009-07-28 | 2011-02-09 | 石宝枢 | Double-seven-groove constant velocity universal joint transmission shaft assembly |
| CN103470646A (en) * | 2012-06-05 | 2013-12-25 | 浙江众达传动股份有限公司 | Eccentric crossed-groove ball cage type constant-velocity universal joint |
-
2014
- 2014-02-20 CN CN201410057926.4A patent/CN104863980A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262198Y (en) * | 2008-08-06 | 2009-06-24 | 石宝枢 | Seven channel ball cage type universal joint |
| CN101363482A (en) * | 2008-08-18 | 2009-02-11 | 石宝枢 | 7-channel double offset cardan joint |
| CN201262199Y (en) * | 2008-08-18 | 2009-06-24 | 石宝枢 | Seven-channel double-offset type universal joint |
| CN201461765U (en) * | 2009-07-28 | 2010-05-12 | 石宝枢 | Double-seven-raceway constant velocity universal joint transmission shaft assembly |
| CN101966814A (en) * | 2009-07-28 | 2011-02-09 | 石宝枢 | Double-seven-groove constant velocity universal joint transmission shaft assembly |
| CN103470646A (en) * | 2012-06-05 | 2013-12-25 | 浙江众达传动股份有限公司 | Eccentric crossed-groove ball cage type constant-velocity universal joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269725A (en) * | 2017-06-13 | 2017-10-20 | 北京新能源汽车股份有限公司 | A kind of drive shaft assembly and automobile |
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Application publication date: 20150826 |
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