CN102852992B - Duplex constant-speed driving shaft - Google Patents
Duplex constant-speed driving shaft Download PDFInfo
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- CN102852992B CN102852992B CN201210351467.1A CN201210351467A CN102852992B CN 102852992 B CN102852992 B CN 102852992B CN 201210351467 A CN201210351467 A CN 201210351467A CN 102852992 B CN102852992 B CN 102852992B
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- universal joint
- jack shaft
- driving shaft
- shaft
- constant velocity
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Abstract
The invention provides a duplex constant-speed driving shaft. The driving shaft comprises a middle shaft, wherein a cardan joint outer sleeve is sleeved at two ends of the middle shaft respectively, steel balls are arranged on the side wall of the middle shaft and arranged between inner walls of the two cardan joint outer sleeves which are sleeved on the middle shaft, and ball channels which accommodate the steel balls are arranged on side walls of two ends of the middle shaft and on inner walls of the two cardan joint outer sleeves. According to the driving shaft, the strength of the driving shaft and the maximum bearable torque output can be improved substantially, the accumulative clearance of the product is reduced, the accuracy of the product is improved, the lubricating effect is good, heat radiating is achieved fast, products are matched well, the torsional strength is high, and the product can restore in place quickly after swinging and sliding axially.
Description
Technical field
The present invention relates to a kind of twin constant velocity driving shaft.
Background technique
Existing automobile constant velocity driving shaft, the structural configuration that its structure is generally " fixing type equal speed universal joint+jack shaft+Telescopic constant-velocity universal joint ", fixing type equal speed universal joint is made up of outer race, star-wheel, retainer and some steel balls, Telescopic constant-velocity universal joint is made up of sliding sleeve, three pin joint assemblies, fixing type equal speed universal joint is connected by jack shaft with Telescopic constant-velocity universal joint, thus realizes the function of live axle transmitting torque, pivot angle and length compensation.Above structure can meet the user demand of daily passenger car, but when automobile is in mountain region, Gobi desert etc. during severe road traveling, existing constant velocity driving shaft by showing that moment of torsion exports not, the phenomenon such as the abnormal sound that causes of strength deficiency and product multi-part accumulation matching gap, affect performance output and the safety in utilization of car load.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of twin constant velocity driving shaft, intensity and the maximum moment of torsion that bears that significantly can improve live axle export, reduce the accumulative gap of product, improve the precision of product, high lubricating effect, rapid heat dissipation, product is worked good, torsional strength is large, and product resets rapidly after rotation and axial slip.
For solving above-mentioned existing technical problem, the present invention adopts following scheme: a kind of twin constant velocity driving shaft, comprise jack shaft, the two ends of described jack shaft are arranged with a universal joint overcoat respectively, be equipped with steel ball between the sidewall of described jack shaft and the inwall of sheathed two universal joint overcoats thereon, on the two ends sidewall of described jack shaft and on the inwall of two universal joint overcoats, be equipped with the alley of accommodating steel ball.The intensity and the maximum moment of torsion that bears that significantly improve live axle export; Also reduce the accumulative gap of product simultaneously, improve Product Precision.
As preferably, limiting stopper is provided with between the end of described jack shaft and the universal joint overcoat diapire being located at this end, the end of described jack shaft is provided with the groove of accommodating limiting stopper, is provided with and withstands limiting stopper and then make limiting stopper withstand on spring on the diapire of the universal joint overcoat of this end in described groove.Limiting stopper can free axial stretching by spring, contributes to resetting rapidly after rotation and axial slip at product.
As preferably, described groove inner wall is provided with the spacing back-up ring stopping that limiting stopper is deviate from.Stop limiting stopper to be deviate from, Product Safety is good.
As preferably, described jack shaft is provided with the oilhole running through jack shaft two ends.Facilitate the circulation of lubricating grease, improve lubrication effect, rapid heat dissipation.
As preferably, described groove is located on oilhole, and described limiting stopper is provided with exhaust port, and described oilhole is by the ft connection of exhaust port and jack shaft.Exhaust port coordinates with oilhole, and structure is the most reasonable.
As preferably, the two ends sidewall of described jack shaft is star structure and alley is distributed on the sidewall at jack shaft two ends, accordingly described two universal joint outer casing inner walls is also evenly equipped with the alley coordinated with the alley on jack shaft.Alley is distributed on jack shaft and on two universal joint outer casing inner walls, and the precision of product is better.
As preferably, in described universal joint overcoat, be provided with the retainer of spacing steel ball in it.Product Precision is high.
As preferably, be provided with sheath between described two universal joint overcoats, the part on the interior edge face of two universal joint overcoats and jack shaft between two universal joint overcoats surrounds by described sheath.Two universal joint overcoats, jack shafts are shielded, the working life of product can be extended.
As preferably, the exterior edge face of described universal joint overcoat is provided with some end-tooths.End-tooth improves product and coordinates and torsional strength.
As preferably, described two universal joint jacket structures are identical and radially tangent plane is symmetrical about jack shaft.Structure is the most reasonable, is convenient to produce.
Beneficial effect:
A kind of twin constant velocity driving shaft that the present invention adopts technique scheme to provide, intensity and the maximum moment of torsion that bears that significantly can improve live axle export, reduce the accumulative gap of product, improve the precision of product, high lubricating effect, rapid heat dissipation, product is worked good, torsional strength is large, and product resets rapidly after rotation and axial slip.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the end view drawing of jack shaft in the present invention;
Fig. 3 is the structure sectional view of universal joint overcoat in the present invention;
Fig. 4 is the exterior edge face structural representation of universal joint overcoat in the present invention;
Fig. 5 is the interior edge face structural representation of universal joint overcoat in the present invention.
Embodiment
As shown in Fig. 1 to 5, a kind of twin constant velocity driving shaft, comprise jack shaft 3, the two ends of described jack shaft 3 are arranged with a universal joint overcoat 1 respectively, be equipped with steel ball 2 between the sidewall of described jack shaft 3 and the inwall of sheathed two universal joint overcoats 1 thereon, on the two ends sidewall of described jack shaft 3 and on the inwall of two universal joint overcoats 1, be equipped with the alley 4 of accommodating steel ball 2.Limiting stopper 8 is provided with between the end of described jack shaft 3 and universal joint overcoat 1 diapire being located at this end, the end of described jack shaft 3 is provided with the groove of accommodating limiting stopper 8, is provided with and withstands limiting stopper 8 and then make limiting stopper 8 withstand on spring 9 on the diapire of the universal joint overcoat 1 of this end in described groove.Described groove inner wall is provided with the spacing back-up ring 11 stopping that limiting stopper 8 is deviate from.Described jack shaft 3 is provided with the oilhole 7 running through jack shaft 3 two ends.Described groove is located on oilhole 7, and described limiting stopper 8 is provided with exhaust port 10, and described oilhole 7 is by the ft connection of exhaust port 10 with jack shaft 3.The two ends sidewall of described jack shaft 3 is star structure and alley is distributed on the two ends sidewall of jack shaft 3, accordingly described two universal joint overcoat 1 inwalls is also evenly equipped with the alley coordinated with the alley on jack shaft 3.The retainer 5 of spacing steel ball 2 in it is provided with in described universal joint overcoat 1.Be provided with sheath 6 between described two universal joint overcoats 1, the part on the interior edge face of two universal joint overcoats 1 and jack shaft 3 between two universal joint overcoats 1 surrounds by described sheath 6.The exterior edge face of described universal joint overcoat 1 is provided with some end-tooths 12.Described two universal joint overcoat 1 structures are identical and radially tangent plane is symmetrical about jack shaft 3.
The present invention changes traditional star-wheel and jack shaft into jack shaft integrated morphology by spline joint or three pin joint assemblies and jack shaft by spline joint, namely jack shaft 3 two ends to be connected with two universal joint overcoats 1 by steel ball 2 and to be equipped with the alley 4 of accommodating steel ball 2 on jack shaft 3 and on two universal joint overcoats 1, the intensity and the maximum moment of torsion that bears that significantly improve live axle export, also reduce the accumulative gap of product simultaneously, improve Product Precision; Jack shaft 3 is provided with the exhaust port 10 that oilhole 7 coordinates limiting stopper 8, facilitates the circulation of lubricating grease, improves lubrication effect, rapid heat dissipation; Limiting stopper 8 and the spring 9 at jack shaft 3 two ends coordinate, and contribute to resetting rapidly after rotation and axial slip at product; Exterior edge face, two universal joint overcoat 1 two ends is provided with some end-tooths 12, can improve product and coordinate and torsional strength.
Claims (9)
1. a twin constant velocity driving shaft, it is characterized in that: comprise jack shaft (3), the two ends of described jack shaft (3) are arranged with a universal joint overcoat (1) respectively, steel ball (2) is equipped with between the sidewall of described jack shaft (3) and the inwall of sheathed two universal joint overcoats (1) thereon, the alley (4) of accommodating steel ball (2) is equipped with on the two ends sidewall of described jack shaft (3) and on the inwall of two universal joint overcoats (1), limiting stopper (8) is equipped with between the end of described jack shaft (3) and universal joint overcoat (1) diapire being located at this end, the end of described jack shaft (3) is provided with the groove of accommodating limiting stopper (8), be provided with in described groove and withstand limiting stopper (8) and then make limiting stopper (8) withstand on spring (9) on the diapire of the universal joint overcoat (1) of this end.
2. a kind of twin constant velocity driving shaft according to claim 1, is characterized in that: described groove inner wall is provided with the spacing back-up ring (11) stopping that limiting stopper (8) is deviate from.
3. a kind of twin constant velocity driving shaft according to claim 1, is characterized in that: described jack shaft (3) is provided with the oilhole (7) running through jack shaft (3) two ends.
4. a kind of twin constant velocity driving shaft according to claim 3, it is characterized in that: described groove is located on oilhole (7), described limiting stopper (8) is provided with exhaust port (10), and described oilhole (7) is by the ft connection of exhaust port (10) with jack shaft (3).
5. according to the arbitrary described a kind of twin constant velocity driving shaft of Claims 1-4, it is characterized in that: the two ends sidewall of described jack shaft (3) is star structure and alley is distributed on the sidewall at jack shaft (3) two ends, accordingly described two universal joint overcoat (1) inwalls are also evenly equipped with the alley coordinated with the alley on jack shaft (3).
6. according to the arbitrary described a kind of twin constant velocity driving shaft of Claims 1-4, it is characterized in that: the retainer (5) being provided with spacing steel ball (2) in it in described universal joint overcoat (1).
7. according to the arbitrary described a kind of twin constant velocity driving shaft of Claims 1-4, it is characterized in that: be provided with sheath (6) between described two universal joint overcoats (1), the part be positioned between two universal joint overcoats (1) on the interior edge face of two universal joint overcoats (1) and jack shaft (3) surrounds by described sheath (6).
8., according to the arbitrary described a kind of twin constant velocity driving shaft of Claims 1-4, it is characterized in that: the exterior edge face of described universal joint overcoat (1) is provided with some end-tooths (12).
9., according to the arbitrary described a kind of twin constant velocity driving shaft of Claims 1-4, it is characterized in that: described two universal joint overcoat (1) structures are identical and radially tangent plane is symmetrical about jack shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210351467.1A CN102852992B (en) | 2012-09-20 | 2012-09-20 | Duplex constant-speed driving shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210351467.1A CN102852992B (en) | 2012-09-20 | 2012-09-20 | Duplex constant-speed driving shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102852992A CN102852992A (en) | 2013-01-02 |
| CN102852992B true CN102852992B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210351467.1A Active CN102852992B (en) | 2012-09-20 | 2012-09-20 | Duplex constant-speed driving shaft |
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| CN (1) | CN102852992B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876351A (en) * | 2009-04-30 | 2010-11-03 | 常州超宇机械制造有限公司 | Constant-speed transmission shaft with telescopic middle shaft |
| CN201827262U (en) * | 2010-10-08 | 2011-05-11 | 浙江欧迪恩汽车零部件有限公司 | Large-swing angle constant-speed driving shaft assembly |
| CN202326788U (en) * | 2011-11-11 | 2012-07-11 | 浙江向隆机械有限公司 | Constant-speed driving shaft ball-shaped cage |
| CN202326791U (en) * | 2011-12-04 | 2012-07-11 | 宁波纬尚汽车零部件有限公司 | Driving shaft assembly convenient to disassemble |
| CN202746432U (en) * | 2012-09-20 | 2013-02-20 | 浙江欧迪恩传动科技股份有限公司 | Duplex type constant-speed driving shaft |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57177424A (en) * | 1981-04-24 | 1982-11-01 | Honda Motor Co Ltd | Equi-speed universal coupling |
| JP2005337291A (en) * | 2004-05-24 | 2005-12-08 | Ntn Corp | Drive shaft for all terrain vehicle |
-
2012
- 2012-09-20 CN CN201210351467.1A patent/CN102852992B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876351A (en) * | 2009-04-30 | 2010-11-03 | 常州超宇机械制造有限公司 | Constant-speed transmission shaft with telescopic middle shaft |
| CN201827262U (en) * | 2010-10-08 | 2011-05-11 | 浙江欧迪恩汽车零部件有限公司 | Large-swing angle constant-speed driving shaft assembly |
| CN202326788U (en) * | 2011-11-11 | 2012-07-11 | 浙江向隆机械有限公司 | Constant-speed driving shaft ball-shaped cage |
| CN202326791U (en) * | 2011-12-04 | 2012-07-11 | 宁波纬尚汽车零部件有限公司 | Driving shaft assembly convenient to disassemble |
| CN202746432U (en) * | 2012-09-20 | 2013-02-20 | 浙江欧迪恩传动科技股份有限公司 | Duplex type constant-speed driving shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102852992A (en) | 2013-01-02 |
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