CN103104628B - For the angled skew rzeppa universal joint of vehicle - Google Patents
For the angled skew rzeppa universal joint of vehicle Download PDFInfo
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- CN103104628B CN103104628B CN201110351922.3A CN201110351922A CN103104628B CN 103104628 B CN103104628 B CN 103104628B CN 201110351922 A CN201110351922 A CN 201110351922A CN 103104628 B CN103104628 B CN 103104628B
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Abstract
The invention provides a kind of angled skew rzeppa universal joint for vehicle, its can by make outer ring rotating center and inner ring center of rotation with deviation angle relative to each other symmetrical location and while keeping outer ring external diameter the pressure of contact surface compensated between outer ring recess and ball strengthen the intensity of universal joint.Angled skew rzeppa universal joint comprises: be connected to the inner ring of the end of axle, be arranged on outer ring outside inner ring, for the moment of torsion of inner ring being delivered to multiple ball of outer ring and having the retainer of the opening for supporting corresponding ball, wherein the center of rotation of outer ring ball orbit and the center of rotation of inner ring ball orbit symmetrical with deviation angle.
Description
Technical field
The present invention relates to a kind of angled skew rzeppa universal joint for vehicle, relate more specifically to a kind of angled skew rzeppa universal joint for vehicle, its can by make outer ring rotating center and inner ring center of rotation with deviation angle relative to each other symmetrical location and while keeping outer ring external diameter the pressure of contact surface compensated between outer ring recess and ball strengthen the intensity of universal joint.
Background technique
Usually, universal joint role transmits rotational power (moment of torsion) between two rotating shafts connected with an angle each other.In the transmission shaft situation with little power transmission angle, use hook universal joint, flexible universal joint etc., and in the live axle situation of f-w-d vehicle with large power transmission angle, use constant velocity universal joint.
Because also can with uniform velocity reliably transferring power when the angle of constant velocity universal joint even between live axle and driven shaft is very large, so constant velocity universal joint be mainly used in the axletree of independent suspension type f-w-d vehicle.When viewed from shaft angle degree, Y-type constant speed universal joint is arranged on one end towards motor (that is, medial extremity) of axle, and rzeppa universal joint is arranged on the other end towards tire (that is, outboard end) of axle.
Fig. 1 is the viewgraph of cross-section that conventional constant velocity universal joint is shown, and Fig. 2 is the schematic diagram of the outward appearance that the conventional constant velocity universal joint shown in Fig. 1 is shown.
As depicted in figs. 1 and 2, conventional constant velocity universal joint comprise be arranged on axle 1 the right-hand member towards motor (namely, medial extremity) Y-type constant speed universal joint and be arranged on the rzeppa universal joint of the left end towards tire (that is, outboard end) of axle 1.
The Y-type constant speed universal joint (it is towards motor) being arranged on axle 1 right-hand member comprising: housing 2, and it transmits the axial power of motor (not shown) and is limited with rail slot on the surface within it; Axle 1, then its rotational power received from housing 2 rotates; Spider 3, it is arranged in housing 2, is connected to one end of axle 1 housing 2 and axle 1 to be connected to each other, and is formed with three pivots in the rail slot being inserted into housing 2 respectively; Needle roller 6, it is arranged on the circumferential outer surface of each pivot of spider 3; Interior roller 5, it is arranged around the needle roller 6 of each pivot for spider 3 separately; Outer roller 4, to reduce the friction between housing 2 and axle 1 on its circumferential outer surface being arranged on each interior roller 5 separately; Retaining ring 8, it is arranged on the upper end of needle roller 6 and each interior roller 5; Safety cover 10, its one end is connected to housing 2, and the other end is connected to axle 1; And clip 11 and 12, clip 11 and 12 clamps the two ends of safety cover 10.
The rzeppa universal joint (it is towards tire) be arranged on the left end of axle 1 comprising: inner ring 15, to receive the rotational power from Y-type constant speed universal joint on its left end being arranged on axle 1, then rotates; Outer ring 13, it is installed around inner ring 15; Ball 16, it is for being delivered to outer ring 13 by the rotational power of inner ring 15; For supporting the retainer 14 of ball 16; Sensor ring 17, it is installed around outer ring 13; Safety cover 18, its one end is connected to axle 1, and the other end is connected to outer ring 13; And clip 19 and 20, clip 19 and 20 clamps the two ends of safety cover 18.
Damper 21 bundle hoop 22 and 23 is arranged on the centre of axle 1, and has the counterweight 211 be arranged in body 212.
Below, by the operation of explanation as the conventional constant velocity universal joint of above-mentioned structure.
When the rotational power exported from motor (not shown) is delivered to housing 2 by transmission device (not shown), housing 2 rotates.The rotational power of housing 2 is delivered to spider 3 by outer roller 4, interior roller 5 and needle roller 6, and the axle 1 that then spider 3 connects thereon rotates.The rotational power of axle 1 is delivered to outer ring 13 by inner ring 15 and ball 16, and the wheel (not shown) being then connected to outer ring 13 rotates.
Be arranged on the right-hand member towards motor of axle 1 (namely, medial extremity) Y-type constant speed universal joint in, when outer roller 4 slides in the rail slot of housing 2, the rotational angle of the axle 1 that operation connects with outer roller 4 changes, thus produces the universal joint angle (jointangle) of following the displacement of vehicle.In the rzeppa universal joint of the left end towards tire (that is, outboard end) being arranged on axle 1, the rotational angle of outer ring 13 changes due to the existence of ball 16, thus produces the universal joint angle of following the displacement of vehicle.
The safety cover 10 of Y-type constant speed universal joint and the safety cover 18 of rzeppa universal joint play sealing Y-type constant speed universal joint and rzeppa universal joint respectively, thus prevent Y-type constant speed universal joint and rzeppa universal joint from being polluted by exogenous impurity.
In addition, when the moment of torsion exported from motor is delivered to wheel by axle 1, with a certain rotational angle place of the axle 1 of high speed rotating, uneven rotation may occur, this may cause undesirable vibration and have a negative impact to drive system operation.In order to prevent because imbalance rotates the undesirable vibration produced, the damper 2 being arranged on the centre of axle 1 can prevent due to disadvantageous vibration frequency and occur in the boom on the axle 1 of high speed rotating.
Fig. 3 is the decomposition view of the conventional rzeppa universal joint illustrated for vehicle, Fig. 4 is the stereogram of the conventional rzeppa universal joint shown in Fig. 1, Fig. 5 illustrates that the conventional rzeppa universal joint for vehicle is producing the viewgraph of cross-section before universal joint angle, and Fig. 6 illustrates the viewgraph of cross-section of the conventional rzeppa universal joint shown in Fig. 5 after generation universal joint angle.
As shown in Fig. 3 to Fig. 6, in the conventional rzeppa universal joint of vehicle, by retainer 14 and inner ring 15, ball 16 is installed.In steering procedure, move along its length in the groove that ball 16 is formed on the circumferential inner surface of outer ring 13.
The ball orbit OBT of outer ring 13 is formed as following the radius R 2 extended from center of rotation r2, and the ball orbit IBT of inner ring 15 is formed as following the radius R 3 extended from center of rotation r3.
Funnel angle f (funnelangle) between the center of rotation r2 of outer ring ball orbit OBT and the center of rotation r3 of inner ring ball orbit IBT is formed in the center of ball 16, be in the scope of 12 ° to 15 ° for 6-rzeppa universal joint, and be in the scope of 7 ° to 12 ° for 8-rzeppa universal joint.Funnel angle f is convenient to the bending of universal joint and is rotated.At this, if funnel angle f does not fix, so universal joint may block and the efficiency of universal joint may reduce.
The center of rotation r2 of outer ring ball orbit OBT and the center of rotation r3 of inner ring ball orbit IBT orientates as with parallel to each other relative to the constant offset R1 of universal joint center of rotation r1.When bending, retainer 14 and ball 16 rotated the half of the universal joint angle angle of inner ring 15, and the center of rotation r3 of the center of rotation r2 of outer ring ball orbit OBT and inner ring ball orbit IBT rotates along the radius corresponding to side-play amount R1 relative to universal joint center of rotation r1.
But according to the trend towards the compact rzeppa universal joint direction of lightweight, the retainer of conventional rzeppa universal joint stands the pressure strengthened possibly.
Summary of the invention
Therefore, the present invention is intended to solve and above-mentionedly occurs in the problems of the prior art, and the object of this invention is to provide a kind of angled skew rzeppa universal joint for vehicle, described angled skew rzeppa universal joint can by make outer ring rotating center and inner ring center of rotation with deviation angle relative to each other symmetrical location and while keeping outer ring external diameter the pressure of contact surface compensated between outer ring recess and ball strengthen the intensity of universal joint.
According to an aspect of the present invention, a kind of angled skew rzeppa universal joint for vehicle is provided, comprise: be connected to the inner ring of the end of axle, be arranged on outer ring outside inner ring, for the moment of torsion of inner ring being delivered to multiple ball of outer ring and there is the retainer of the opening for supporting corresponding ball, wherein the center of rotation of outer ring ball orbit and the center of rotation of inner ring ball orbit symmetrical with deviation angle.
Preferably, the area of contact of the part in the groove of outer ring is increased by deviation angle, and when universal joint angle maximizes, described part realizes the minimal-contact area relative to ball.
Preferably, the area of contact of the part in the groove of inner ring is reduced by deviation angle, and when universal joint angle maximizes, described part realizes the Maximum Contact area relative to ball.
The intensity of retainer can utilize the external diameter of retainer to increase.
Rzeppa universal joint can be arranged on the outboard end place towards wheel of axle.
Deviation angle is preferably between spending in the scopes of+45 degree from-45.
Be mutually symmetrical the ratio R1/PCD of the pitch diameter PCD of multiple balls of location and side-play amount R1 in the scope of 0.040 to 0.130 relative to universal joint center of rotation r1.
As mentioned above, according to of the present invention in the angled skew rzeppa universal joint of vehicle, can by make outer ring rotating center and inner ring center of rotation with deviation angle relative to each other symmetrical location and while keeping outer ring external diameter the pressure of contact surface compensated between outer ring recess and ball strengthen the intensity of universal joint.
Additional aspects of the present invention and/or advantage will partly be explained in the following description, and partly will be clear from this explanation, maybe can know by putting into practice the present invention.
Accompanying drawing explanation
From below in conjunction with will clearer object of the present invention, feature and advantage the detailed description of accompanying drawing, wherein:
Fig. 1 is the viewgraph of cross-section that conventional constant velocity universal joint is shown;
Fig. 2 is the schematic diagram of the outward appearance that the conventional constant velocity universal joint shown in Fig. 1 is shown;
Fig. 3 is the decomposition view of the conventional rzeppa universal joint illustrated for vehicle;
Fig. 4 is the stereogram of the conventional rzeppa universal joint shown in Fig. 1;
Fig. 5 illustrates that the conventional rzeppa universal joint for vehicle is producing the viewgraph of cross-section before universal joint angle;
Fig. 6 illustrates the viewgraph of cross-section of the conventional rzeppa universal joint shown in Fig. 5 after generation universal joint angle;
Fig. 7 illustrates that the angled rzeppa universal joint for vehicle is according to an embodiment of the present invention producing the viewgraph of cross-section before universal joint angle;
Fig. 8 illustrates the viewgraph of cross-section of the rzeppa universal joint shown in Fig. 7 after generation universal joint angle; And
Fig. 9 is the zoomed-in view of the basic element of character that the rzeppa universal joint shown in Fig. 7 is shown.
Embodiment
Hereinafter, will by means of of the present invention several exemplary or preferred embodiment and with reference to accompanying drawing illustrate a preferred implementation of the present invention.During detailed description below studying carefully and other advantages of the present invention and feature also will be known with reference to during accompanying drawing.But the following explanation of these mode of executions is mainly used in illustrating principle of the present invention and example arrangement, and the present invention is not specifically confined to these illustrative embodiments.Therefore, those of ordinary skill in the art can understand or recognize, can not depart from the spirit and scope of the invention and to the present invention make various amendment, replacing and its equivalent to substitute.
Fig. 7 illustrates that the angled rzeppa universal joint for vehicle is according to an embodiment of the present invention producing the viewgraph of cross-section before universal joint angle, Fig. 8 illustrates the viewgraph of cross-section of the rzeppa universal joint shown in Fig. 7 after generation universal joint angle, and Fig. 9 is the zoomed-in view of the basic element of character that the rzeppa universal joint shown in Fig. 7 is shown.
As shown in Fig. 7 to Fig. 9, the angled skew rzeppa universal joint for vehicle according to an embodiment of the present invention comprises: inner ring 35, and it is arranged on the end of axle; Outer ring 33, it is arranged on the outside of inner ring 35; Multiple ball 36, it is for being delivered to outer ring 33 by the rotational power of inner ring 35; And retainer 34, it has the opening for supporting ball 36.At this, the center of rotation r3 of the center of rotation r2 of the ball orbit OBT of outer ring 33 and the ball orbit IBT of inner ring 35 is spaced apart from each other, and is mutually symmetrical with offset angle.
Offset angle is between spending in the scopes of+45 degree from-45.
Because be mutually symmetrical the ratio R1/PCD of the pitch diameter PCD of multiple balls 36 of location and side-play amount R1 in the scope of 0.040 to 0.130 relative to universal joint center of rotation r1, so be formed at the funnel angle f between the center of rotation r2 of outer ring ball orbit OBT and the center of rotation r3 of inner ring ball orbit IBT in the center of ball 36,6-rzeppa universal joint is remained in the scope of 12 ° to 15 °, and 8-rzeppa universal joint is remained in the scope of 7 ° to 12 °, thus be convenient to the bending of universal joint and rotate.
Hereinafter, the operation being used for the angled skew rzeppa universal joint of vehicle according to an embodiment of the present invention as above-mentioned structure will be described.
When the rotational power rotatingshaft exported from motor (not shown), the rotational power of axle is delivered to outer ring 33 by inner ring 35 and ball 36, and the wheel (not shown) being then connected to outer ring 33 rotates.
In the case, according to embodiment of the present invention in the angled skew rzeppa universal joint of vehicle, the rotational angle of outer ring 33 is changed by ball 36, thus produces and follow the universal joint angle of the displacement of vehicle.The center of rotation r2 of outer ring ball orbit OBT and the center of rotation r3 of inner ring ball orbit IBT orientates as with offset angle relative to each other symmetrical, the bulk strength keeping the external diameter of outer ring 33 simultaneously to be strengthened universal joint by the groove pressure of contact surface compensating outer ring 33 thus.In other words, see Fig. 7 and Fig. 8, the part indicated by reference mark ' a ' in the groove of outer ring 33 is increased by offset angle, when universal joint angle maximizes, described part realizes the minimal-contact area relative to ball 36, and pressure of contact surface can by reducing by means of offset angle increases the area of contact of part ' a '.The part indicated by reference mark ' b ' in the groove of inner ring 35 is reduced by offset angle, and when universal joint angle maximizes, described part realizes the Maximum Contact area relative to ball 36.In this way, even if pressure of contact surface increases, also can be reduced area of contact by offset angle and compensate whole groove pressure of contact surface.At this, offset angle is between spending in the scopes of+45 degree from-45.In addition, the ratio R1/PCD of the pitch diameter PCD of multiple balls 36 of location and side-play amount R1 is mutually symmetrical in the scope of 0.040 to 0.130 relative to universal joint center of rotation r1.
As mentioned above, if the pressure of contact surface between the groove of outer ring 33 and inner ring 35 is compensated, so the intensity of retainer 34 can strengthen by relatively increasing the external diameter of retainer 34.
Although describe illustrative embodiments of the present invention in detail above, but should be appreciated that, those of ordinary skill in the art can be clear, many changes of basic inventive concept described herein and amendment will drop on as by as described in the purport of illustrative embodiments of the present invention that limits of claim and scope.
Claims (4)
1., for an angled skew rzeppa universal joint for vehicle, comprising:
Inner ring, described inner ring is connected to the end of axle, and has inner ring ball orbit, and described inner ring ball orbit is along the constant radius of the whole length restriction distance inner ring center of rotation of described inner ring ball orbit;
Outer ring, described outer ring is arranged on the outside of described inner ring, and has outer ring ball orbit, and described outer ring ball orbit is along the constant radius at the whole length restriction distance outer ring rotating center of described outer ring;
Multiple ball, described multiple ball is used for the moment of torsion of described inner ring to be delivered to described outer ring, and at least one in described multiple ball engages with described inner ring ball orbit and described outer ring ball orbit; And
Retainer, described retainer has the opening for supporting corresponding described ball,
Wherein, the center of rotation of outer ring ball orbit and the center of rotation of inner ring ball orbit are with deviation angle symmetry, described deviation angle comprise relative to through universal joint center of rotation longitudinal axis for axial component and radial component, wherein, " through the described deviation angle formed the horizontal center line of described universal joint center of rotation and the radial line of the center of rotation through described universal joint center of rotation and described outer ring ball orbit " is equal with " through the described deviation angle formed the horizontal center line of described universal joint center of rotation and the radial line of the center of rotation through described universal joint center of rotation and described inner ring ball orbit " and is symmetrical arranged relative to the vertical center line through described universal joint center of rotation,
Described deviation angle is between spending in the scopes of+45 degree from-45; And
Wherein, the pressure of contact surface between described outer ring and described multiple ball reduces by increasing universal joint angle.
2. angled skew rzeppa universal joint as claimed in claim 1, wherein, the intensity of described retainer is increased by the external diameter of described retainer and increases.
3. angled skew rzeppa universal joint as claimed in claim 1, wherein, described rzeppa universal joint is arranged on the outboard end place towards wheel of described axle.
4. angled skew rzeppa universal joint as claimed in claim 1, wherein, is mutually symmetrical the ratio R1/PCD of the pitch diameter PCD of described multiple ball of location and side-play amount R1 in the scope of 0.040 to 0.130 relative to universal joint center of rotation r1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110351922.3A CN103104628B (en) | 2011-11-09 | 2011-11-09 | For the angled skew rzeppa universal joint of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110351922.3A CN103104628B (en) | 2011-11-09 | 2011-11-09 | For the angled skew rzeppa universal joint of vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103104628A CN103104628A (en) | 2013-05-15 |
| CN103104628B true CN103104628B (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110351922.3A Active CN103104628B (en) | 2011-11-09 | 2011-11-09 | For the angled skew rzeppa universal joint of vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782256B (en) * | 2016-03-31 | 2019-03-05 | 宁波万航实业有限公司 | Big slippage shaft coupling |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2155149A (en) * | 1984-02-28 | 1985-09-18 | Nippon Sieko Kabushiki Kaisha | Constant velocity universal joint |
| US5122096A (en) * | 1989-11-30 | 1992-06-16 | Lohr & Bromkamp Gmbh | Constant velocity ratio universal joint |
| EP0802341A1 (en) * | 1995-12-26 | 1997-10-22 | Ntn Corporation | Constant velocity universal coupling |
| FR2854214A1 (en) * | 2003-04-23 | 2004-10-29 | Volkswagen Ag | Fixed synchronization articulation for motor vehicle, has shaft, placed between outer and inner parts, including windows to receive balls, and seven ball track pairs, provided on parts, occupied by respective balls |
| CN101949416A (en) * | 2010-09-01 | 2011-01-19 | 芜湖佳先传动轴有限公司 | Center fixed ball cage type constant velocity universal joint |
| EP2299136A1 (en) * | 2008-06-13 | 2011-03-23 | NTN Corporation | Fixed uniform-motion universal joint |
-
2011
- 2011-11-09 CN CN201110351922.3A patent/CN103104628B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2155149A (en) * | 1984-02-28 | 1985-09-18 | Nippon Sieko Kabushiki Kaisha | Constant velocity universal joint |
| US5122096A (en) * | 1989-11-30 | 1992-06-16 | Lohr & Bromkamp Gmbh | Constant velocity ratio universal joint |
| EP0802341A1 (en) * | 1995-12-26 | 1997-10-22 | Ntn Corporation | Constant velocity universal coupling |
| FR2854214A1 (en) * | 2003-04-23 | 2004-10-29 | Volkswagen Ag | Fixed synchronization articulation for motor vehicle, has shaft, placed between outer and inner parts, including windows to receive balls, and seven ball track pairs, provided on parts, occupied by respective balls |
| EP2299136A1 (en) * | 2008-06-13 | 2011-03-23 | NTN Corporation | Fixed uniform-motion universal joint |
| CN101949416A (en) * | 2010-09-01 | 2011-01-19 | 芜湖佳先传动轴有限公司 | Center fixed ball cage type constant velocity universal joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103104628A (en) | 2013-05-15 |
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