CN105020293A - Pin roller type overrunning clutch - Google Patents
Pin roller type overrunning clutch Download PDFInfo
- Publication number
- CN105020293A CN105020293A CN201410177466.9A CN201410177466A CN105020293A CN 105020293 A CN105020293 A CN 105020293A CN 201410177466 A CN201410177466 A CN 201410177466A CN 105020293 A CN105020293 A CN 105020293A
- Authority
- CN
- China
- Prior art keywords
- roller
- overrunning clutch
- retainer
- holder
- type overrunning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
The invention provides a pin roller type overrunning clutch. A holder (3) is arranged on the outer edge face of an inner star wheel (4). Pin rollers (1) are arranged in pin roller grooves (8) in the holder respectively. At least two grooves (6) are formed in one side of each lintel (7) on the holder. A spring (2) is arranged between each groove and the corresponding pin roller. An outer ring (5) is arranged on the periphery of the holder. The holder made of high-performance nylon materials through injection molding is adopted, the pin rollers are arranged in the holder, the springs are arranged between the pin rollers and the lintels on the holder, and therefore the pin rollers evenly bear force, the work performance and reliability of the overrunning clutch are improved, the failure rate is effectively decreased, and the service life is prolonged; and meanwhile, the machining and assembling difficulty is lowered, and the production cost and the like are effectively reduced. The pin roller type overrunning clutch has the beneficial effects of being simple in structure and convenient to use, and is easy to apply and popularize.
Description
[technical field]
The present invention relates to mechanical equipment technical field, particularly relate to a kind of clutch, be specifically related to a kind of roller-type overrunning clutch.
[background technique]
Known, roller-type overrunning clutch is a kind of transfer unit by roller path unidirectional delivery mechanical output, initiatively raceway is utilized to realize mechanically operated engagement with the velocity contrast of driven raceway or be separated, at present, the roller-type overrunning clutch widely applied has two kinds: one is band isolating frame star-wheel formula free wheel device, its main structure is by star-wheel, isolating frame, spring and roller composition, wherein star-wheel external diameter is inserted in isolating frame, roller is loaded in isolating frame roller slot circumferentially, and load spring in isolating frame gland position, isolating frame is promoted by spring, isolating frame promotion roller realizes free wheel device function and normally runs, due to isolating frame can technology capability poor, spring groove position accuracy demand is high, under processing cost restriction, common process precision is difficult to ensure, can not be synchronously stressed when therefore making roller work, cause part roller and the wearing and tearing of star-wheel raceway, isolating frame damages, and finally causes free wheel device to lose efficacy.
Another kind is knock pin type internal star wheel overrun clutch, this structure eliminates isolating frame, change at star-wheel each raceway inwall mounting spring ejector pin, utilize spring knock pin promotion roller to realize free wheel device function normally to run, but under bad working environments, spring knock pin be easily out of shape or due to foreign matter stuck, cause free wheel device to lose efficacy.
[summary of the invention]
For overcoming the deficiency existed in background technique, the invention provides a kind of roller-type overrunning clutch, the retainer of the present invention by adopting high performance nylon material injection shaping, then eccentric cylinder type raceway is set at the outer edge surface of star-wheel, further, a plurality of roller is set in retainer, between lintel on described each roller and retainer, spring is set, make roller uniform force, improve service behaviour and the reliability of free wheel device, effectively reduce rate of fault, increase the service life, reduce processing and assembling difficulty simultaneously, effectively reduce cost of production etc.
For realizing goal of the invention as above, the present invention adopts technological scheme as described below:
A kind of roller-type overrunning clutch, comprise roller, retainer, star-wheel and outer shroud, the outer edge surface of star-wheel is provided with retainer, described retainer is respectively equipped with roller in each roller slot, the side of each lintel on retainer is respectively equipped with at least two grooves, between described each groove and roller, be respectively equipped with spring, outer shroud be set in the periphery of retainer and form described roller-type overrunning clutch.
Described roller-type overrunning clutch, the outer edge surface of described star-wheel is provided with a plurality of eccentric cylinder type raceway, is respectively equipped with roller in described eccentric cylinder type raceway.
Described roller-type overrunning clutch, the opposite side of described each lintel is respectively equipped with arc groove.
Described roller-type overrunning clutch, the inner edge surface of the endoporus of described star-wheel is provided with involute splines.
Described roller-type overrunning clutch, described retainer is provided with a plurality of roller slot.
Described roller-type overrunning clutch, the material of described retainer is nylon.
Described roller-type overrunning clutch, the inner edge surface of described outer shroud endoporus is provided with outer raceway.
Adopt technological scheme as above, the present invention has superiority as described below:
A kind of roller-type overrunning clutch of the present invention, the retainer of the present invention by adopting high performance nylon material injection shaping, avoid original metal isolating frame due to machining accuracy problem flimsy problem, then eccentric cylinder type raceway is set at the outer edge surface of star-wheel, wedging angle is little with wearing and tearing change, effectively can improve clutch working life, further, a plurality of roller is set in retainer, between lintel on described each roller and retainer, spring is set, make roller uniform force, improve service behaviour and the reliability of free wheel device, effectively reduce rate of fault, increase the service life, reduce processing and assembling difficulty simultaneously, effectively reduce cost of production etc., it is simple that the present invention has structure, feature easy to use, be easy to promotion and application.
[accompanying drawing explanation]
Fig. 1 is perspective view of the present invention;
Fig. 2 is the structural representation that the present invention is provided with outer shroud;
In the drawings: 1, roller; 2, spring; 3, retainer; 4, star-wheel; 5, outer shroud; 6, groove; 7, lintel; 8, roller slot; 9, arc groove.
[embodiment]
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples;
A kind of roller-type overrunning clutch by reference to the accompanying drawings described in 1 ~ 2, comprise roller 1, retainer 3, star-wheel 4 and outer shroud 5, the inner edge surface of the endoporus of described star-wheel 4 is provided with the involute splines for connection for transmission axle, the outer edge surface of star-wheel 4 is provided with a plurality of eccentric cylinder type raceway rolled for roller 1, the outer edge surface of star-wheel 4 is provided with retainer 3, the material of described retainer 3 is nylon and passes through molding and forming, described retainer 3 is provided with a plurality of roller slot 8, retainer 3 is respectively equipped with roller 1 in each roller slot 8, the side of each lintel 7 on retainer 3 is respectively equipped with at least two for placing the groove 6 of spring 2, the opposite side of described each lintel 7 is respectively equipped with for the arc groove 9 spacing to roller 1, spring 2 is respectively equipped with between described each groove 6 and roller 1, in the periphery of retainer 3, outer shroud 5 is set, the inner edge surface of described outer shroud 5 endoporus is provided with outer raceway and forms described roller-type overrunning clutch.
Retainer 3 and star-wheel 4 first match by the present invention in use, and on retainer 3, the side of lintel 7 is provided with arc groove 9, can play the effect of location when mounted, improve efficiency of assembling; Then roller 1 and spring 2 are loaded successively in the roller slot 8 of retainer 3, as shown in Figure 1, then entirety loads in outer shroud 5 assembling effect.
In the present invention, the inner ring of star-wheel 4 is involute splines, can with transmission shaft to being connected transmitting torque, when rotating speed of transmission shaft is than outer ring gear rotating speed height, roller 1 dallies in raceway face, clutch is in and surmounts state, the moment of torsion that outer ring gear transmits cannot be exported by transmission shaft, is in idling conditions; When rotating speed of transmission shaft is lower than outer ring gear rotating speed, roller 1 wedging, makes transmission shaft and outer ring gear rotate with same rotational speed, and the moment of torsion of outer ring gear transmission and transmission shaft institute transmitting torque own export jointly, the moment of torsion exported increases greatly, can meet various working condition requirement.
In the present invention, star-wheel 4 have employed eccentric cylinder type raceway, and the angle of wedge is little with wearing and tearing change, improves the life-span of clutch; Retainer 3 adopts high performance nylon material injection shaping, greatly improves manufacturing efficiency; Each roller 1 is promoted by two springs 2, effectively can improve the synchronism of roller 1, improve the reliability of clutch; Reduce overall assembling difficulty, improve efficiency of assembling, have higher promotional value.
Retainer 3 inventor wherein described in the present invention declares patent families separately, is not described further at this.
Concrete advantage of the present invention is as follows:
1, each roller 1 has at least two springs 2 to promote, and improves the pretension reliability of roller 1, avoids retainer 3 due to machining accuracy problem, the problem that the roller 1 synchronism workability caused is bad, improves the reliability of free wheel device;
2, retainer 3 adopts high performance nylon material injection shaping, and shape of product precision is high, avoid original metal isolating frame due to machining accuracy problem flimsy problem, can enhance productivity simultaneously;
3, star-wheel 4 is arranged eccentric cylinder type raceway, wedging angle is little with wearing and tearing change, effectively can improve clutch working life;
4, major diameter spring selected by spring 2, instead of the structure that ejector pin coordinates with knock hole, there will not be due to ejector pin distortion or turbidity test difference and causes stuck problem;
5, reduce free wheel device assembling difficulty, be easy to apply.
Part not in the detailed description of the invention is prior art.
The embodiment selected in this article in order to open object of the present invention, currently thinks to be suitable for, but it is to be understood that the present invention is intended to comprise all changes belonging to the embodiment in this design and invention scope and improvement.
Claims (7)
1. a roller-type overrunning clutch, comprise roller (1), retainer (3), star-wheel (4) and outer shroud (5), it is characterized in that: on the outer edge surface of star-wheel (4), be provided with retainer (3), roller (1) is respectively equipped with in the upper each roller slot (8) of described retainer (3), the side of each lintel (7) on retainer (3) is respectively equipped with at least two grooves (6), spring (2) is respectively equipped with between described each groove (6) and roller (1), in the periphery of retainer (3), the roller-type overrunning clutch described in outer shroud (5) formation is set.
2. roller-type overrunning clutch according to claim 1, is characterized in that: the outer edge surface of described star-wheel (4) is provided with a plurality of eccentric cylinder type raceway, is respectively equipped with roller (1) in described eccentric cylinder type raceway.
3. roller-type overrunning clutch according to claim 1, is characterized in that: the opposite side of described each lintel (7) is respectively equipped with arc groove (9).
4. roller-type overrunning clutch according to claim 1, is characterized in that: the inner edge surface of the endoporus of described star-wheel (4) is provided with involute splines.
5. roller-type overrunning clutch according to claim 1, is characterized in that: described retainer (3) is provided with a plurality of roller slot (8).
6. roller-type overrunning clutch according to claim 1, is characterized in that: the material of described retainer (3) is nylon.
7. roller-type overrunning clutch according to claim 1, is characterized in that: the inner edge surface of described outer shroud (5) endoporus is provided with outer raceway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177466.9A CN105020293A (en) | 2014-04-30 | 2014-04-30 | Pin roller type overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177466.9A CN105020293A (en) | 2014-04-30 | 2014-04-30 | Pin roller type overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105020293A true CN105020293A (en) | 2015-11-04 |
Family
ID=54410502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410177466.9A Pending CN105020293A (en) | 2014-04-30 | 2014-04-30 | Pin roller type overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105020293A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725880A (en) * | 2017-11-23 | 2018-02-23 | 淄博沃泰斯石化设备有限公司 | A kind of roller top-pressure mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005299743A (en) * | 2004-04-08 | 2005-10-27 | Nsk Ltd | One-way roller clutch and one-way roller clutch-incorporating pulley device |
| JP2006161951A (en) * | 2004-12-07 | 2006-06-22 | Jtekt Corp | Pulley unit with one-way clutch |
| CN201401494Y (en) * | 2009-04-09 | 2010-02-10 | 李志敏 | Automobile generator one-way belt pulley |
| JP2011094808A (en) * | 2011-01-14 | 2011-05-12 | Nsk Ltd | Pulley device with built-in one way clutch |
| TWM440362U (en) * | 2012-06-08 | 2012-11-01 | Nu Flyer Co Ltd | Uni-directional bearing set |
| DE102011082215A1 (en) * | 2011-09-07 | 2013-03-07 | Schaeffler Technologies AG & Co. KG | Free-wheel for crank-continuous variable transmission (CVT) gearbox installed e.g. has cage that is provided with attenuation tabs that are arranged radially inwardly with respect to clamping structures provided in cage |
-
2014
- 2014-04-30 CN CN201410177466.9A patent/CN105020293A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005299743A (en) * | 2004-04-08 | 2005-10-27 | Nsk Ltd | One-way roller clutch and one-way roller clutch-incorporating pulley device |
| JP2006161951A (en) * | 2004-12-07 | 2006-06-22 | Jtekt Corp | Pulley unit with one-way clutch |
| CN201401494Y (en) * | 2009-04-09 | 2010-02-10 | 李志敏 | Automobile generator one-way belt pulley |
| JP2011094808A (en) * | 2011-01-14 | 2011-05-12 | Nsk Ltd | Pulley device with built-in one way clutch |
| DE102011082215A1 (en) * | 2011-09-07 | 2013-03-07 | Schaeffler Technologies AG & Co. KG | Free-wheel for crank-continuous variable transmission (CVT) gearbox installed e.g. has cage that is provided with attenuation tabs that are arranged radially inwardly with respect to clamping structures provided in cage |
| TWM440362U (en) * | 2012-06-08 | 2012-11-01 | Nu Flyer Co Ltd | Uni-directional bearing set |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725880A (en) * | 2017-11-23 | 2018-02-23 | 淄博沃泰斯石化设备有限公司 | A kind of roller top-pressure mechanism |
| CN107725880B (en) * | 2017-11-23 | 2024-03-19 | 淄博沃泰斯石化设备有限公司 | Roller jacking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20151104 |