CN2126837Y - Spline ball-envelope constant universal joint - Google Patents
Spline ball-envelope constant universal joint Download PDFInfo
- Publication number
- CN2126837Y CN2126837Y CN 91229851 CN91229851U CN2126837Y CN 2126837 Y CN2126837 Y CN 2126837Y CN 91229851 CN91229851 CN 91229851 CN 91229851 U CN91229851 U CN 91229851U CN 2126837 Y CN2126837 Y CN 2126837Y
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- ball
- envelope
- star
- wheel
- utility
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Abstract
The utility model provides spline ball-envelope constant speed universal joint, which can be used in automobile transmission. The utility model is provided with an inner and an outer star wheels with a straight ball path, a ball envelope which is provided with an eccentric inside and outside spherical surface is clamped between the inner and the outer star wheels, a universal coupling is arranged in the ball envelope, steel balls are properly and uniformly arranged on the universal coupling, and the utility model inherits the superiority of a ball-envelope constant speed universal joint. Meanwhile, the inner spherical surface of the ball envelope is provided with splined holes, so the assembly of the inner star wheel, the ball envelope and the steel balls is more convenient. The number of the steel ball can be changed from six into a dimension series which is suitable for even and odd, so the use range of the ball envelope universal coupling is widened. The straight ball path structure can omit a telescopic spline shaft, and the utility model is suitable for the transmission which is provided with an independent suspension drive axle.
Description
The utility model relates to the driving device that a kind of two between centers relative positions constantly change, in particular for the universal-joint of the between centers transferring power of various automobiles.
For making the transmission of automobile power,, or use independent suspension all to need the universal-joint of two between centers transferring power no matter be engine behind front wheel rear drive or preposition before driving.Great majority adopt at present, Hooke's joint, croisillon de joint homocinetique formula universal-joint, curved grooved type and Rzeppa joint, and preceding two kinds of universal-joints that belong to variable speed or accurate constant velocity, the more pen that do not take of shortcoming is discussed.Though Weiss universal joint belongs to the constant speed transmission because of four steel balls in unidirectional transmission, have only two transferring power, unit pressure is big, easy to wear, and require that certain predetermincd tension is arranged between steel ball and the alley, end float misalignment will take place in wearing and tearing back ball fork, destroyed constant speed character, become few and used.Modern automobile adopts Rzeppa joint more, no matter be that circular arc alley or liner ball road have all solved constant speed transmission problem preferably, and it is big to transmit operating angle, the efficient advantages of higher, but its mounting or dismounting are difficulty very, and uses six steel balls of even number to limit the development of its range of sizes more.
The purpose of this utility model provides a kind of spline type Rzeppa universal joint, it has not only kept the advantage of liner ball road Rzeppa joint, and solved the mounting or dismounting problem well, unconventional six of the quantity of steel ball, even number odd number all can, can select steel ball number arbitrarily with power transmission size by the user, this has developed its range of sizes widely, make scantling of structure more reasonable, weight is lighter, has widened its range of use.
The purpose of this utility model is achieved in that out star wheel is installed on the outer semiaxis, star-wheel is installed on the inner shaft, two-wheeled all is shaped on the liner ball road of equivalent, ball cage of clamping between the two-wheeled, the ball cage is the ball retainer that does not wait wall thickness, its inside and outside circle cambered surface center of curvature equidistantly is offset to the both sides at universal-joint center, the spherical outside surface of ball cage cooperates with the out star wheel inner cylinder face, its Internal Spherical Surface matches with the spherical outside surface of star-wheel, be equipped with the steel ball of some at ball cage middle straight alley place, the tooth of the similar gear of effect of steel ball makes star-wheel stir out star wheel by steel ball and rotates.Because the center of curvature of ball cage inside and outside spherical surface equidistantly is offset to the both sides at universal-joint center, the steel ball center is on the angular bisector of two-semiaxle corner all the time, according to the geom theorem as can be known: some the distance to the both sides, angle is equal arbitrarily on the angular bisector, owing to wait rotating speed to rotate, thereby their speed equates with radius.Before the utility model, because the star-wheel maximum outside diameter is greater than the diameter of ball cage end, star-wheel can't be packed in the ball cage, design engineer has adopted on ball cage exterior arc surface, the Kong Kaida that puts steel ball, the length in hole is to the width that is slightly larger than star-wheel, hole wide to the star transverse tooth thickness degree greater than star-wheel, this oblong aperture respectively has one in both sides, make symmetrically.During installation, 90 ° of star-wheel axis upsets, make star-wheel vertical with ball cage two axial lines, in an end of ball cage, insert the oblong aperture star tooth of star-wheel, the star tooth of symmetry also places another relative oblong aperture, when star-wheel moves on to ball cage inside face circular arc maximum gauge place it is turned back 90 ° again, makes ball cage and star-wheel coaxial, put into steel ball again, dismounting is undertaken by opposite sequence.Because above-mentioned handling method, two oblong aperture make the ball cage put the hole wall attenuate of steel ball, if the steel ball of odd number will make ball cage hole wall chip, when transferring power is big, the quantity of steel ball increases, and the length of these two oblong aperture just can't have been made to the width that all is greater than star-wheel, and the diameter of the automobile gimbal that has is greatly to more than 90～100 millimeters, structure is very heavy, even can't use.The utility model adopts the assembling of spline pattern, only makes half section female splines at the heavy wall end of ball cage and gets final product, and the star tooth and the arc groove of star-wheel are equivalent to male splined shaft, the female splines easy fit of it and ball cage.During installation, star-wheel is placed ball cage splined end, the spline of the star tooth alignment with the ball cage of star-wheel, the maximum gauge place turned over a teeth groove in the middle of the spline transverse tooth thickness of its arc groove alignment with the ball cage, star-wheel moved on to vertically, put into steel ball, insert at last in the out star wheel in liner ball road, realize assembling.
Owing to adopt such scheme, the quantity of steel ball is the amount doesn't matter, i.e. also odd number of even number, can develop into range of sizes with the power transmission size, be adapted to the needs of all types of automobile propulsive efforts, make scantling of structure more reasonable, weight is lighter, easy for installation, existing car transmissions are not needed to do special change just can use.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a semi-sictional view constructional drawing of the present utility model.
Fig. 2 is star-wheel of the present utility model and ball cage installation process figure.
Fig. 3 is an assembly drowing of the present utility model.
1. outer semiaxis 2. out star wheels 3. ball cages 4. steel balls 5. star-wheels 6. locating bushs 7. dustproof sheath 8. inner shafts 9. big elastic spring 10. little elastic springs among the figure
In Fig. 1, out star wheel (2) is installed on the outer semiaxis (1), star-wheel (5) is installed on the inner shaft (8), two-wheeled all is shaped on the liner ball road that parallels to the axis of equivalent, a ball cage of clamping (3) between the two-wheeled, ball cage (3) is the ball retainer that does not wait wall thickness, its inside and outside circle cambered surface center of curvature is respectively n and w equidistantly is offset to o both sides, universal-joint center, the spherical outside surface of ball cage (3) matches with the inner cylinder face of out star wheel (2), its Internal Spherical Surface matches with the spherical outside surface of star-wheel (5), in the middle of ball cage (3), be equipped with an amount of uniform steel ball (4) in place, two-wheeled liner ball road, because ball cage (3) inside and outside spherical surface center of curvature equidistantly is offset to the both sides of universal-joint center o, in two-semiaxle rotates, steel ball (4) center is on the angular bisector of two-semiaxle corner all the time, two-semiaxle rotates with radius to wait rotating speed, thereby their speed also equates.Star-wheel (5) is fixed on the end of inner shaft (8) by little elastic spring (10) and locating bush (6).Steel ball (4) can roll on the liner ball road of interior out star wheel, and it is spacing when mobile that two big elastic springs (9) are used for ball cage (3).Dustproof sheath (7) is contained in respectively on out star wheel and the inner shaft, can rotate dustproof using with axle.
In Fig. 2,3, be shaped on the female splines of five teeth at ball cage (3) heavy wall end, its spline degree of depth is ended to star-wheel (5) maximum outside diameter place, and at this place's turning relief groove as shown in Figure 2.The star tooth of star-wheel (5) and arc groove be the keyway and the transverse tooth thickness of alignment with the ball cage (3) female splines respectively, mobile star-wheel (5) is to ball cage (3) inner arc surface maximum inner diameter place, turn over a keyway, at this moment, the star tooth of star-wheel (5) is to the transverse tooth thickness of ball cage (3), the keyway of the corresponding ball cage of star-wheel (5) arc groove (3), its arc groove is corresponding one by one with five holes that ball cage (3) is placed steel ball (4), as shown in Figure 3, put into five steel balls (4), insert together in the liner ball road of out star wheel (2), finish assembling.The effect in the liner ball road of interior out star wheel also can supply two-semiaxle corner and power transmission except that easy for installation, and make inner shaft along the flexible suitable distance of axis, played the compensating action of telescopic transmission shaft spline, and the steel ball rolling frictional resistance is little, the driving efficiency height, thereby the drive axle that is particularly suitable for independent suspension uses.
Claims (2)
1, a kind of spline type Rzeppa universal joint, by being installed in the interior out star wheel that has the liner ball road on the inside and outside semiaxis, middle one of clamping has the universal-joint that keeps an amount of uniform power transmission steel ball to form in the ball cage of eccentric sphere and the ball cage, it is characterized in that: do not wait the heavy wall end of the ball cage of wall thickness to be shaped on female splines having eccentric inside and outside spherical surface.
2, universal-joint according to claim 1 is characterized in that: the spline degree of depth is ended to star-wheel maximum outside diameter place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91229851 CN2126837Y (en) | 1991-12-06 | 1991-12-06 | Spline ball-envelope constant universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91229851 CN2126837Y (en) | 1991-12-06 | 1991-12-06 | Spline ball-envelope constant universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2126837Y true CN2126837Y (en) | 1993-02-10 |
Family
ID=33760714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91229851 Expired - Fee Related CN2126837Y (en) | 1991-12-06 | 1991-12-06 | Spline ball-envelope constant universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2126837Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007104257A1 (en) * | 2006-03-14 | 2007-09-20 | Zhu Raphael | An axial plunger pump or motor |
-
1991
- 1991-12-06 CN CN 91229851 patent/CN2126837Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007104257A1 (en) * | 2006-03-14 | 2007-09-20 | Zhu Raphael | An axial plunger pump or motor |
| CN101415944B (en) * | 2006-03-14 | 2010-12-22 | 朱荣辉 | Axial plunger pump or motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |