CN104806659A - Roller-type one-way clutch with dual-sealing structure - Google Patents
Roller-type one-way clutch with dual-sealing structure Download PDFInfo
- Publication number
- CN104806659A CN104806659A CN201510204721.9A CN201510204721A CN104806659A CN 104806659 A CN104806659 A CN 104806659A CN 201510204721 A CN201510204721 A CN 201510204721A CN 104806659 A CN104806659 A CN 104806659A
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- roller
- way clutch
- rubber seal
- sealing structure
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Abstract
The invention relates to a one-way clutch which is used for unidirectionally transmitting power and slipping reversely and is applied to an automobile starter, in particular to a roller-type one-way clutch with a dual-sealing structure. The roller-type one-way clutch comprises a spline shaft, wherein the shaft diameter surface of the rear end of the spline shaft is provided with an involute tooth spline part; the front end of the spline shaft is an optical shaft part; the involute tooth spline part is provided with a fixing sleeve in a matching manner; the front end of the fixing sleeve is provided with a curved cavity; the inner wall of the curved cavity is uniformly provided with a plurality of convex ridges; a spring chamber is formed between every two adjacent convex ridges; the optical shaft part is provided with a shaft bushing in a sleeving manner; the shaft bushing is provided with a driving gear in a matching manner; the rear end of the driving gear extends into the curved cavity; each spring chamber is internally provided with a roller and a spring; one end of each spring is tightly pressed on the corresponding convex ridge; the other end of each spring is tightly pressed on the corresponding roller; a groove is formed in the connecting end face at the outer side of the fixing sleeve. The roller-type one-way clutch with the dual-sealing structure has the advantages of long service life, simple structure, compact size, low cost, and suitability for mass production.
Description
Technical field
The present invention relates to the overrunning clutch that the power reverse of automobile starter unidirectional delivery is skidded, specifically a kind of roller-type one way clutch with double sealing structure.
Background technique
Along with the development of society, various engineering machinery demand gets more and more.And working environment residing for engineering machinery is relatively more severe, dust is many.And a place, front end of the actuation gear of starter motor and splined shaft be all do not have Packed, dust is easily pasted onto splined shaft front end place, one-way element is front and back slippage on splined shaft, dust easily enters actuation gear endoporus bearing surface, there is premature wear in axle bush endoporus and dust friction, reduces the one-way element life-span; The column part of actuation gear inserts and surely overlaps in curve-surface cavity place, because actuation gear rotates in guide cylinder, so must inject lubricating grease between actuation gear and guide cylinder in addition.When starter motor works, overrunning clutch moves axially to actuation gear and engages with engine flywheel on splined shaft, motor is started, after engine ignition completes, power-off of starter, output shaft stops the rotation, and actuation gear is dragged High Rotation Speed by motor is counter, and the grease surely overlapping curve-surface cavity place is easy under the influence of centrifugal force to be thrown away from back-up ring and the fixed contact end face gap overlapped.Affect the working life of overrunning clutch.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of roller-type one way clutch with double sealing structure be provided, this clutch long service life, structure are simple, compact dimensions, with low cost, be applicable to produce in enormous quantities.
According to technological scheme of the present invention: a kind of roller-type one way clutch with double sealing structure, it is characterized in that: comprise splined shaft, diameter of axle surface, described splined shaft rear end is provided with involute profile spline part, splined shaft front end is optical axis portion, described involute profile spline part is equipped with and determines cover, surely overlap front end and be provided with curve-surface cavity, curve-surface cavity inner wall even distribution arranges several convex ridges, forms spring housing between adjacent two convex ridges; Described optical axis portion is arranged with axle bush, described axle bush is equipped with actuation gear, and actuation gear rear end is stretched in curve-surface cavity, all arranges a roller and a spring in each described spring housing, described spring one end is pressed on convex ridge, and the other end is pressed on roller; Described fixed cover outside connecting end surface offers groove, and be provided with semicircle rubber seal in a groove, described semicircle rubber seal is fixed by back-up ring, and cover cap is fixing with both fixed overlapping by described back-up ring; Described actuation gear front end endoporus is provided with step hole, and step hole inwall is provided with fin to downward-extension, is provided with lip rubber seal circle in described step hole, and lip rubber seal circle is spacing fixing by fin.
As a further improvement on the present invention, described fixed cover matches with involute profile spline part and is partly provided with involute profile spline.
As a further improvement on the present invention, described cover cap front end is fixed on back-up ring, and closing in portion, cover cap rear end is pressed in and determines in the chamfering of cover.
As a further improvement on the present invention, described lip rubber seal circle inside arranges an elastic skeleton.
Technique effect of the present invention is: the actuation gear front end endoporus in product of the present invention opens a step hole and square groove, in step hole and square groove, a lip rubber seal circle is pasted in die casting, in lip rubber seal circle inside, an iron elastic skeleton is set, strengthen the parcel of lip rubber seal circle lip and splined shaft a place cylindrical and the tension of lip, and lip rubber seal circle lip b place contacts with splined shaft cylindrical a place and is on the same center of circle with spline axis, therefore can obtain good sealing effect; In the middle part of back-up ring, paste a semicircle rubber seal, the semi circular surface compressive deformation of semicircle rubber seal with surely overlap end face R rooved face and offset.Can not only effectively prevent dust impurity from entering actuation gear endoporus bearing surface like this causes axle bush premature wear and curve-surface cavity lubricating grease throw away from back-up ring and the fixed contact end face gap overlapped and improve the life-span, and structure is simple, compact dimensions, with low cost, be applicable to produce in enormous quantities.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is A-A part sectioned view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
In Fig. 1,2, comprise lip rubber seal circle 1, elastic skeleton 1-1, lip 1-2, actuation gear 2, step hole 2-1, fin 2-2, cover cap 3, closing in portion 3-1, back-up ring 4, semicircle rubber seal 5, roller 6, surely overlap 7, groove 7-1, involute profile spline 7-2, curve-surface cavity 7-3, spring housing 7-4, splined shaft 8, involute profile spline part 8-1, optical axis portion 8-2, spring 9, axle bush 10 etc.
As shown in Figure 1, the present invention is a kind of roller-type one way clutch with double sealing structure, comprise splined shaft 8, diameter of axle surface, described splined shaft 8 rear end is provided with involute profile spline part 8-1, splined shaft 8 front end is optical axis portion 8-2, described involute profile spline part 8-1 is equipped with and determines cover 7, surely overlap 7 front ends and be provided with curve-surface cavity 7-3, curve-surface cavity 7-3 inner wall even distribution arranges several convex ridges, forms spring housing 7-4 between adjacent two convex ridges; Described optical axis portion 8-2 is arranged with axle bush 10, described axle bush 10 is equipped with actuation gear 2, actuation gear 2 rear end is stretched in curve-surface cavity 7-3, a roller 6 and a spring 9 are all set in each described spring housing 7-4, described spring 9 one end is pressed on convex ridge, and the other end is pressed on roller 6; Outside described cover 7 surely, connecting end surface offers groove 7-1, and in groove 7-1, be provided with semicircle rubber seal 5, described semicircle rubber seal 5 is fixed by back-up ring 4, and cover cap 3 is by described back-up ring 4 and surely overlap both 7 fixing; Described actuation gear 2 front end endoporus is provided with step hole 2-1, and step hole 2-1 inwall is provided with fin 2-2 to downward-extension, is provided with lip rubber seal circle 1 in described step hole 2-1, and lip rubber seal circle 1 is spacing fixing by fin 2-2.
Described cover 7 surely matches with involute profile spline part 8-1 and is partly provided with involute profile spline 7-2.
Described cover cap 3 front end is fixed on back-up ring 4, cover cap 3 rear end closing in portion 3-1 be pressed in determine cover 7 chamfering on, described lip rubber seal circle 1 inside arranges an elastic skeleton 1-1.
The process of specifically manufacturing of product of the present invention is as follows: lip rubber seal circle 1 hot pressing is pasted onto in the step hole 2-1 of actuation gear 2 front end, easily come off because lip rubber seal circle 1 when one-way element retreats is subject to axially dialling de-power, arranging a fin 2-2 at cylindrical right-hand member is inlaid in square groove, sealing effect and life-span is improved in order to increase the lip of lip rubber seal circle 1 and the parcel of splined shaft 8 cylindrical and the tension of lip, an iron elastic skeleton 1-1 is set in inside, and lip 1-2 place contacts with splined shaft 8 cylindrical place and is on the same center of circle with splined shaft 8 axle center.Actuation gear 2 cylindrical front end is involute gear, rear end is smooth, cylindrical peripheral surface, smooth, cylindrical peripheral surface be placed in curve-surface cavity 7-3 and with roller 6 one-tenth linear contact lay, in the step hole 2-1 of endoporus front end, a lip rubber seal circle 1 is pasted in hot pressing, intermediate step end face and lip rubber seal circle 1 right side offset, and rear end step endoporus is socketed two axle bushes 10.Cover cap 3 is barrel-shaped part, and bottom plane and back-up ring 4 left side offset, and inner hole sleeve is connected to determines the large cylindrical of cover 7 and back-up ring 4 cylindrical, and opening riveted joint is closed up and determined on the large chamfering inclined-plane, cylindrical right side of cover 7.Back-up ring 4 is ring-shape accessory, and cylindrical is socketed on cover cap 3 endoporus, and left side and cover cap 3 bottom plane offset, right side with surely overlap 7 large cylindricals and actuation gear 2 intermediate step offsets and semicircle rubber seal 5 is pasted in centre.Semicircle rubber seal 5 left side is pasted onto in the middle part of back-up ring 4 right side, during assembling the semicircle rubber seal 5 semi circular surface distortion of back-up ring 4 axial compression with surely overlap 7 large circle end face groove 7-1 faces and offset.Roller 6 is cylindrical, massive part, and roller 6 cylindrical two sides becomes linear contact lay with the eccentric arc curved surface determining cover 7 with actuation gear 2 right-hand member cylindrical respectively, and supports with spring 9.Surely overlap 7 one end bore design and have five or six eccentric arc curved surfaces and five or six GeLXing spring housing, embed five or six rollers 6 and five or six springs 9 respectively, the other end bore design becomes the involute profile spline 7-2 matched with splined shaft 8, cylindrical is designed to two smooth cylindrical differed in size, large cylindrical is socketed on cover cap 3 bore area, little cylindrical is smooth, cylindrical peripheral surface, a square groove or circular groove is being had for connecting the mobile lining in location close to end, left side and back-up ring 4 right side offset and centre has a circular groove, circular groove surface offsets with the semi circular surface of semicircle rubber seal 5.Splined shaft 8 is axial workpiece, front end smooth, cylindrical peripheral surface string crosses lip rubber seal circle 1 and axle bush 10 endoporus, rear end is and determines cover 7 internal spline and to be socketed and can the involute profile spline of relative sliding, its axle center and 1 lip rubber seal circle axle center, 10 axle bush axle center and surely to overlap 7 internal spline axle center concentric.Spring 9 is flat spiral spring, and one end is supported on the spring housing 7-4 inwall determining cover 7, and the other end is supported on roller 6 cylindrical.Axle bush 10 is cover parts, and cylindrical is socketed on actuation gear 2 endoporus, and inner hole sleeve is connected to splined shaft 8 front-end surface.
Claims (4)
1. the roller-type one way clutch with double sealing structure, it is characterized in that: comprise splined shaft (8), diameter of axle surface, described splined shaft (8) rear end is provided with involute profile spline part (8-1), splined shaft (8) front end is optical axis portion (8-2), described involute profile spline part (8-1) is equipped with and determines cover (7), fixed cover (7) front end is provided with curve-surface cavity (7-3), curve-surface cavity (7-3) inner wall even distribution arranges several convex ridges, forms spring housing (7-4) between adjacent two convex ridges; Described optical axis portion (8-2) is arranged with axle bush (10), described axle bush (10) is equipped with actuation gear (2), actuation gear (2) rear end is stretched in curve-surface cavity (7-3), a roller (6) and a spring (9) are all set in each described spring housing (7-4), described spring (9) one end is pressed on convex ridge, and the other end is pressed on roller (6); Described fixed cover (7) outside connecting end surface offers groove (7-1), semicircle rubber seal (5) is provided with in groove (7-1), described semicircle rubber seal (5) is fixed by back-up ring (4), and described back-up ring (4) and fixed overlapping both (7) are fixed by cover cap (3); Described actuation gear (2) front end endoporus is provided with step hole (2-1), step hole (2-1) inwall is provided with fin (2-2) to downward-extension, be provided with lip rubber seal circle (1) in described step hole (2-1), lip rubber seal circle (1) is spacing fixing by fin (2-2).
2. according to the roller-type one way clutch with double sealing structure according to claim 1, it is characterized in that: described fixed cover (7) is matched with involute profile spline part (8-1) and is partly provided with involute profile spline (7-2).
3. according to the roller-type one way clutch with double sealing structure according to claim 1, it is characterized in that: described cover cap (3) front end is fixed on back-up ring (4), closing in portion, cover cap (3) rear end (3-1) be pressed in determine cover (7) chamfering on.
4. according to the roller-type one way clutch with double sealing structure according to claim 1, it is characterized in that: described lip rubber seal circle (1) inside arranges an elastic skeleton (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204721.9A CN104806659A (en) | 2015-04-27 | 2015-04-27 | Roller-type one-way clutch with dual-sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204721.9A CN104806659A (en) | 2015-04-27 | 2015-04-27 | Roller-type one-way clutch with dual-sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806659A true CN104806659A (en) | 2015-07-29 |
Family
ID=53691766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510204721.9A Pending CN104806659A (en) | 2015-04-27 | 2015-04-27 | Roller-type one-way clutch with dual-sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806659A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939925A (en) * | 2016-01-04 | 2017-07-11 | 上海法雷奥汽车电器系统有限公司 | A kind of one-way clutch |
| CN108374849A (en) * | 2018-04-28 | 2018-08-07 | 无锡市神力齿轮冷挤有限公司 | A kind of single-way speed-reducing clutch with overload protection |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2800996A1 (en) * | 1978-01-11 | 1979-07-12 | Bosch Gmbh Robert | FREE WHEELING, IN PARTICULAR FOR TURNING DEVICES OF COMBUSTION ENGINE |
| JPS6411369U (en) * | 1987-07-09 | 1989-01-20 | ||
| JPH0681862A (en) * | 1992-09-07 | 1994-03-22 | Nippondenso Co Ltd | Starter clutch |
| CN2756875Y (en) * | 2004-09-28 | 2006-02-08 | 宜兴市宙斯泵业有限公司 | Improved pump shaft lip shape seal device |
| CN201013515Y (en) * | 2007-01-10 | 2008-01-30 | 严绍康 | Unidirectional clutch of starter for internal combustion engine |
| US20090183594A1 (en) * | 2008-01-17 | 2009-07-23 | Denso Corporation | Clutch for starters |
| CN201679579U (en) * | 2009-12-15 | 2010-12-22 | 中国北车集团大连机车车辆有限公司 | Sealing structure of the front end of diesel engine crankshaft |
| CN202520918U (en) * | 2011-12-29 | 2012-11-07 | 惠阳航空螺旋桨有限责任公司 | Seal end cover for transmission shaft of transmission machinery |
| CN103195838A (en) * | 2013-04-24 | 2013-07-10 | 苏州君丰辰电子科技有限公司 | Power transmission device |
| CN204592077U (en) * | 2015-04-27 | 2015-08-26 | 无锡市神力齿轮冷挤有限公司 | With the roller-type one way clutch of double sealing structure |
-
2015
- 2015-04-27 CN CN201510204721.9A patent/CN104806659A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2800996A1 (en) * | 1978-01-11 | 1979-07-12 | Bosch Gmbh Robert | FREE WHEELING, IN PARTICULAR FOR TURNING DEVICES OF COMBUSTION ENGINE |
| JPS6411369U (en) * | 1987-07-09 | 1989-01-20 | ||
| JPH0681862A (en) * | 1992-09-07 | 1994-03-22 | Nippondenso Co Ltd | Starter clutch |
| CN2756875Y (en) * | 2004-09-28 | 2006-02-08 | 宜兴市宙斯泵业有限公司 | Improved pump shaft lip shape seal device |
| CN201013515Y (en) * | 2007-01-10 | 2008-01-30 | 严绍康 | Unidirectional clutch of starter for internal combustion engine |
| US20090183594A1 (en) * | 2008-01-17 | 2009-07-23 | Denso Corporation | Clutch for starters |
| CN201679579U (en) * | 2009-12-15 | 2010-12-22 | 中国北车集团大连机车车辆有限公司 | Sealing structure of the front end of diesel engine crankshaft |
| CN202520918U (en) * | 2011-12-29 | 2012-11-07 | 惠阳航空螺旋桨有限责任公司 | Seal end cover for transmission shaft of transmission machinery |
| CN103195838A (en) * | 2013-04-24 | 2013-07-10 | 苏州君丰辰电子科技有限公司 | Power transmission device |
| CN204592077U (en) * | 2015-04-27 | 2015-08-26 | 无锡市神力齿轮冷挤有限公司 | With the roller-type one way clutch of double sealing structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939925A (en) * | 2016-01-04 | 2017-07-11 | 上海法雷奥汽车电器系统有限公司 | A kind of one-way clutch |
| CN106939925B (en) * | 2016-01-04 | 2019-10-11 | 上海法雷奥汽车电器系统有限公司 | A kind of one-way clutch |
| CN108374849A (en) * | 2018-04-28 | 2018-08-07 | 无锡市神力齿轮冷挤有限公司 | A kind of single-way speed-reducing clutch with overload protection |
| CN108374849B (en) * | 2018-04-28 | 2023-11-24 | 无锡市神力齿轮冷挤有限公司 | Speed-reducing one-way clutch with overload protection |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |