CN203322045U - Driven bearing for sheath of automotive constant-speed driving shaft - Google Patents
Driven bearing for sheath of automotive constant-speed driving shaft Download PDFInfo
- Publication number
- CN203322045U CN203322045U CN2013202987786U CN201320298778U CN203322045U CN 203322045 U CN203322045 U CN 203322045U CN 2013202987786 U CN2013202987786 U CN 2013202987786U CN 201320298778 U CN201320298778 U CN 201320298778U CN 203322045 U CN203322045 U CN 203322045U
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- ring
- driven bearing
- live axle
- constant velocity
- circle
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Abstract
The utility model provides a driven bearing for a sheath of an automotive constant-speed driving shaft. The driven bearing comprises an inner circle and an outer circle, wherein the inner circle is sleeved on a core shaft, and the outer circle is sleeved on the outer wall of the inner circle; a plurality of roller pins are arranged between the inner circle and the outer circle, a ball groove for containing the roller pins is formed between the inner circle and the outer circle, the roller pins are restrained through a maintaining frame, and a sealing assembly for preventing oil from leaking between the inner circle and the outer circle is arranged between the inner circle and the outer circle. The driven bearing is of a roller pin structural design, the roller pins are in linear contact with the inner circle and the outer circle, the areas of contact points are increased, the unit load is small, the axial bearing capacity and the radial bearing capacity of the bearing are enhanced, the wear between each rolling pin and a roller path is reduced, and the service life of the driven bearing is prolonged.
Description
Technical field
The utility model relates to constant velocity driving shaft and transmission shaft bearing field, is specifically related to the driven bearing of a kind of automobile constant velocity live axle sheath.
Background technique
Drive shaft assembly is being born the task from motor to the driving wheel transferring power, it is the vitals in car transmissions, continuous progress along with science and technology, existing part live axle product is introduced bearing unit between sheath clamping position and mandrel, replace sheath and the direct-connected means of fixation of mandrel, for extending the sheath life-span and promoting the live axle combination property.Exercise at present the existing bearing unit of this function, mainly be comprised of inner ring, outer ring, steel ball, retainer and seal ring, each member completes to the fixing of live axle sheath with to the Anti-lost task of sheath internal grease by the utilization relation that is mutually related.1., inner ring and outer ring raceway all adopt the deep-groove ball structure above-mentioned existing bearing unit is in structural design and use the defect that has the following aspects:, groove-section design for circular arc, and raceway processing technology complexity, cost are high; 2., steel ball forms at 2 with the Internal and external cycle raceway and contacts under the bearing unit load condition, point of contact load is larger, easily causes the wearing and tearing of raceway and steel ball; 3., seal ring relies on its metal frame and Internal and external cycle formation to be sealed and matched, when bearing unit is subject to axial and radial load, to a certain degree deformation or axial relativity shift can occur in Internal and external cycle, easily cause metal frame distortion and wearing and tearing, thereby cause seal failure, grease to leak; 4., the bearing unit Internal and external cycle is through the multiple working procedures such as turning, milling and grinding processing, equipment cost is high, the manufacture cycle is long, and the original streamline of organizing of material destroyed, the product durability is low.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of automobile constant velocity live axle sheath driven bearing, the design of employing needle roller structure, under load condition, needle roller forms linear the contact with Internal and external cycle, contact point area increases, unit load is little, bearing shaft is to promoting with bearing capacity radially, and the wearing and tearing between needle roller and raceway reduce, improve working life.
For solving above-mentioned existing technical problem, the utility model adopts following scheme: the driven bearing of a kind of automobile constant velocity live axle sheath, comprise the inner ring that is set on mandrel, be set in the outer ring on interior ring outer wall, be provided with some needle rollers between inner ring and outer ring, be provided with the alley of accommodating needle roller between inner ring and outer ring, needle roller retrains by retainer, is provided with the black box that prevents leakage of oil between inner ring and outer ring between inner ring and outer ring.
As preferably, alley is to be located at the circle of one on the madial wall of outer ring groove I.
As preferably, inner ring one side is provided with protruding Ka Tai, black box be set on inner ring and be clipped in Ka Tai and outer ring between seal ring.
As preferably, seal ring is provided with and makes seal ring be close to the sealing auxiliary member on inner ring and outer ring.
As preferably, the seal ring sidewall is provided with a breach, and the sealing auxiliary member is to be located in breach around the seal ring jump ring of a week.
As preferably, seal ring is cambered surface towards the one side of interior ring outer wall.
As preferably, seal ring is provided with around the seal ring internal face groove II of a week towards the one side of interior ring outer wall.
As preferably, seal ring is rubber seal, is wrapped with metal frame in seal ring.
As preferably, mandrel is provided with the guard assembly of protection inner ring and outer ring, and guard assembly comprises guard shield, guard shield, and guard shield is trapped among the periphery, outer ring, and guard shield is all or part of to be coated on guard shield.
As preferably, guard shield comprises small circle ring and the large circle coaxial with small circle ring, and small circle ring one end is provided with back-up ring, and the other end is connected by step surface with large circle, and guard shield envelopes on large circle and step surface.
Beneficial effect:
The driven bearing of a kind of automobile constant velocity live axle sheath that the utility model adopts technique scheme to provide has the following advantages:
1, adopt the needle roller structure design, under load condition, needle roller forms linear the contact with Internal and external cycle, and contact point area increases, unit load is little, and bearing shaft is to promoting with bearing capacity radially, the wearing and tearing reduction between needle roller and raceway, raising in working life;
2, the Automobile drive sheath shaft driven shaft that this technological scheme provides holds, for being connected between sheath and mandrel, main pulling force and the torsion while because of the relative universal joint of mandrel, slip and swing occurring, immovable point produced of alleviating, reduced the sheath wearing and tearing, promoted live axle NVH performance;
3, seal ring and Internal and external cycle contact position are the rubber tissue, and seal ring is internal diameter circular groove both sides rubber tissue and bearing inner race external diameter area of contact and pressure increase under jump ring loads, when live axle under static and High Rotation Speed state, all can effectively prevent the leakage of internal grease and ooze out, reliability be strong;
4, bearing is saved material 10%～20% than the plain bearing assembly, and product is light, miniaturization more;
5, this bearing structure is compact, production procedure is simple, and product has a series of advantages such as bearing capacity is strong, good seal performance, life-span height, adds the cost of low volume and makes it be easier to promote the use of for the protection of live axle high efficient and reliable.
The accompanying drawing explanation
Fig. 1 is sectional view of the present utility model;
The ssembly drawing that Fig. 2 is the utility model inner ring, outer ring, black box and guard shield;
The structural representation that Fig. 3 is the utility model black box;
The sectional view that Fig. 4 is the utility model outer ring.
Embodiment
As shown in Figures 1 to 4, the driven bearing of a kind of automobile constant velocity live axle sheath, comprise the inner ring 2 that is set on mandrel 1, be set in the outer ring 5 on inner ring 2 outer walls, be provided with some needle rollers 7 between inner ring 2 and outer ring 5, be provided with the alley of accommodating needle roller 7 between inner ring 2 and outer ring 5, needle roller 7, by retainer 6 constraints, is provided with the black box that prevents leakage of oil between inner ring 2 and outer ring 5 between inner ring 2 and outer ring 5.Inner ring 2 internal diameters and mandrel 1 interference fit.Alley is to be located at the circle of one on 5 madial walls of outer ring groove I 51, and outer ring 5 and groove I 51 be an extrusion modling preferably, organizes streamline to remain intact, and the mechanical propertys such as part torsion, intensity increase, and have the characteristics of low cost, long-life.Inner ring 2 one sides are provided with protruding card platform 21, black box be set on inner ring 2 and be clipped in card platform 21 and outer ring 5 between seal ring 3.Seal ring 3 is provided with and makes seal ring be close to the sealing auxiliary member on inner ring 2 and outer ring 5, and the sealing auxiliary member is for making seal ring 3 better with inner ring 2 and outer ring 5, push and can make to reach sealing effect preferably.Seal ring 3 sidewalls are provided with a breach 33, breach 33 places form the feeler 34 all contacted with outer ring 5 with inner ring 2, the sealing auxiliary member is to be located in breach 33 around the seal ring jump ring of 3 one weeks 8, seal ring 3 is inboard cambered surface both sides rubber tissue and inner ring 2 outer side wall area of contact and pressure increase under jump ring 8 loads, when live axle under static and High Rotation Speed state, all can effectively prevent the leakage of internal grease and ooze out, reliability be strong.Seal ring 3 is cambered surface or bow face towards the one side of interior ring outer wall, and cambered surface makes seal ring 3 have more elasticity, and the effective sealing part (being feeler 34 in the present embodiment) of being convenient to seal ring 3 is better pushed and can be made to reach sealing effect preferably with inner ring 2 and outer ring 5.Seal ring 3 is provided with around the seal ring 3 internal face groove II 31 of a week towards the one side of interior ring outer wall, the groove II 31 effective sealing part of seal rings 3 (being feeler 34 in the present embodiment) is on the one hand better pushed and can be made to reach sealing effect preferably with inner ring 2 and outer ring 5, can make on the other hand the auxiliaring effect of jump ring 8 better.Seal ring 3 is rubber seal, is wrapped with metal frame 32 in seal ring 3, and seal ring 3 is that rubber can make sealing effect better with inner ring 2,5 contact position, outer ring, metal frame 32 is set and can makes seal ring 3 that certain rigidity is arranged.Mandrel 1 is provided with the guard assembly of protection inner ring 2 and outer ring 5, and guard assembly comprises guard shield 4, guard shield 9 and protecting cover 10, and guard shield 4 is trapped among 5 peripheries, outer ring, and guard shield 9 is all or part of to be coated on guard shield 4, and protecting cover 10 is set on mandrel 1 and overlays on the end face of guard shield 9.Guard shield 4 comprises small circle ring 41 and the large circle 42 coaxial with small circle ring 41, small circle ring 41 1 ends are provided with back-up ring 43, the other end is connected by step surface 44 with large circle 42, inner ring 2 the other ends are provided with screens platform 22, during installation, outer ring 5 is through axially pushing small circle ring 41 places of the guard shield 4 of packing into, back-up ring 43 is stuck in screens platform 22 places, black box is positioned at large circle 42 places, guard shield 9 encases large circle 42 and step surface 44, guard shield 9 stretches in the groove III of protecting cover 10 towards the end of protecting cover 10 1 ends, and overall co-ordination is closely reliable, simple and quick; The preferred impact briquetting of guard shield 4, technological process is simple, manufacturing efficiency is high, and the corner arc transition is effectively eliminated material structure stress concentration phenomenon, part machinery intensity and lifting in working life.Guard shield 9 is outer is arranged with beam ring 11, and sheath 9 is anchored on guard shield 4 external diameters by beam ring 11, coordinates closely reliably, can effectively prevent that the leakage of sheath internal grease is run off.
Be mainly used in being connected between sheath 9 and mandrel 1 in the present embodiment, main pulling force and the torsion while because of the relative universal joint of mandrel 1, slip and swing occurring, immovable point produced of alleviating, the wearing and tearing of sheath 9 have been reduced, promoted live axle NVH performance, bearing structure is compact, production procedure is simple, product has a series of advantages such as bearing capacity is strong, good seal performance, life-span height, adds the cost of low volume and makes it be easier to promote the use of for the protection of live axle high efficient and reliable.
Claims (10)
1. the driven bearing of automobile constant velocity live axle sheath, comprise the inner ring (2) that is set on mandrel (1), be set in the outer ring (5) on inner ring (2) outer wall, it is characterized in that: between described inner ring (2) and outer ring (5), be provided with some needle rollers (7), be provided with the alley of accommodating needle roller (7) between described inner ring (2) and outer ring (5), described needle roller (7), by retainer (6) constraint, is provided with the black box that prevents leakage of oil between inner ring (2) and outer ring (5) between described inner ring (2) and outer ring (5).
2. the driven bearing of a kind of automobile constant velocity live axle sheath according to claim 1 is characterized in that: described alley is for being located at the circle of one on the madial wall of outer ring (5) groove I (51).
3. the driven bearing of a kind of automobile constant velocity live axle sheath according to claim 1 and 2, it is characterized in that: described inner ring (2) one sides are provided with protruding Ka Tai (21), and described black box is for to be set on inner ring (2) and to be clipped in the seal ring (3) between Ka Tai (21) and outer ring (5).
4. the driven bearing of a kind of automobile constant velocity live axle sheath according to claim 3, it is characterized in that: described seal ring (3) is provided with and makes seal ring be close to the sealing auxiliary member on inner ring (2) and outer ring (5).
5. the driven bearing of a kind of automobile constant velocity live axle sheath according to claim 4, it is characterized in that: described seal ring (3) sidewall is provided with a breach (33), and described sealing auxiliary member is for to be located in breach (33) around the seal ring jump ring (8) of (3) weeks.
6. the driven bearing of a kind of automobile constant velocity live axle sheath according to claim 3, it is characterized in that: described seal ring (3) is cambered surface towards the one side of interior ring outer wall.
7. the driven bearing of a kind of automobile constant velocity live axle sheath according to claim 3, it is characterized in that: described seal ring (3) is provided with around seal ring (3) the internal face groove II (31) of a week towards the one side of interior ring outer wall.
8. the driven bearing of a kind of automobile constant velocity live axle sheath according to claim 3 is characterized in that: described seal ring (3) is rubber seal, is wrapped with metal frame (32) in described seal ring (3).
9. the driven bearing of a kind of automobile constant velocity live axle sheath according to claim 1 and 2; it is characterized in that: described mandrel (1) is provided with the guard assembly of protection inner ring (2) and outer ring (5); described guard assembly comprises guard shield (4) and guard shield (9); described guard shield (4) is trapped among periphery, outer ring (5), and described guard shield (9) is all or part of to be coated on guard shield (4).
10. the driven bearing of a kind of automobile constant velocity live axle sheath according to claim 9, it is characterized in that: described guard shield (4) comprises small circle ring (41) and the large circle (42) coaxial with small circle ring (41), described small circle ring (41) one ends are provided with back-up ring (43), the other end is connected by step surface (44) with large circle (42), and described guard shield (9) envelopes on large circle (42) and step surface (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202987786U CN203322045U (en) | 2013-05-28 | 2013-05-28 | Driven bearing for sheath of automotive constant-speed driving shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202987786U CN203322045U (en) | 2013-05-28 | 2013-05-28 | Driven bearing for sheath of automotive constant-speed driving shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322045U true CN203322045U (en) | 2013-12-04 |
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ID=49661400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202987786U Expired - Lifetime CN203322045U (en) | 2013-05-28 | 2013-05-28 | Driven bearing for sheath of automotive constant-speed driving shaft |
Country Status (1)
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| CN (1) | CN203322045U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291742A (en) * | 2013-05-28 | 2013-09-11 | 浙江欧迪恩传动科技股份有限公司 | Driven bearing of protective sleeve of automobile constant-speed driving shaft |
| CN111556933A (en) * | 2018-01-17 | 2020-08-18 | 舍弗勒技术股份两合公司 | Method for mounting a tripod roller, tripod roller and constant velocity joint having a tripod roller |
| CN113653739A (en) * | 2021-07-26 | 2021-11-16 | 人本股份有限公司 | Impact-resistant sealing structure of hub bearing |
-
2013
- 2013-05-28 CN CN2013202987786U patent/CN203322045U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291742A (en) * | 2013-05-28 | 2013-09-11 | 浙江欧迪恩传动科技股份有限公司 | Driven bearing of protective sleeve of automobile constant-speed driving shaft |
| CN103291742B (en) * | 2013-05-28 | 2016-02-10 | 浙江欧迪恩传动科技股份有限公司 | The driven bearing of a kind of automobile constant velocity live axle sheath |
| CN111556933A (en) * | 2018-01-17 | 2020-08-18 | 舍弗勒技术股份两合公司 | Method for mounting a tripod roller, tripod roller and constant velocity joint having a tripod roller |
| CN113653739A (en) * | 2021-07-26 | 2021-11-16 | 人本股份有限公司 | Impact-resistant sealing structure of hub bearing |
| CN113653739B (en) * | 2021-07-26 | 2023-06-09 | 人本股份有限公司 | Shock-resistant sealing structure of hub bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |