CN85107128A - Large wedge angle overrunning clutch - Google Patents
Large wedge angle overrunning clutch Download PDFInfo
- Publication number
- CN85107128A CN85107128A CN85107128.7A CN85107128A CN85107128A CN 85107128 A CN85107128 A CN 85107128A CN 85107128 A CN85107128 A CN 85107128A CN 85107128 A CN85107128 A CN 85107128A
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- CN
- China
- Prior art keywords
- free wheel
- angle
- type groove
- wheel device
- spheroid
- 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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- Rolling Contact Bearings (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Large wedge angle overrunning clutch is a kind of novel free wheel device.Because the angle of wedge is big (greater than 8.5 °), when dropping to zero, external force places spheroid or the also disappearance (omitting the influence of gravity and spring force) thereupon of the suffered positive pressure of solid of rotation between V-type groove and plane or the curved surface, need not to overcome the frictional force that produces because of positive pressure when surmounting, very brisk.Both can replace the ratchet mechanisms that occasion adopted such as bicycle freewheel, can replace the employed free wheel devicees of occasion such as bicycle double ringing again.After bicycle freewheel adopts the present invention, there are not impact phenomenon (due to the idle running angle is little) and metal knock when riding.After the double-bang firecracker bell adopts the present invention, operate lighter, the tinkle of bells is louder.
Description
The present invention is a kind of novel free wheel device.
The angle of wedge is the important parameter of free wheel device.The angle of wedge is big more, and tearaway load is more little when surmounting, and bearing capacity is high more.But the excessive wedging that then is not easy of the angle of wedge also skids behind the wedging easily at work, and " mechanical design handbook " of Chemical Industry Press's distribution recommends the angle of wedge is 2.5 °～8.5 °.
The objective of the invention is to solve following technical barrier: though big (greater than the 8.5 °) wedging of the angle of wedge is still reliable.It can replace the ratchet mechanisms that occasion adopted such as bicycle freewheel, can replace the employed free wheel devicees of occasion such as bicycle double ringing again.
The ratchet that bicycle freewheel adopted is 21 teeth, and the maximum empty corner reaches 8.57 °, and impact phenomenon and metal knock are arranged when riding.After adopting the present invention, the maximum empty corner is no more than 3 °, has overcome above-mentioned shortcoming.
After bicycle double ringing adopts the present invention, because the angle of wedge is bigger, operate lightlyer, the tinkle of bells is louder.
Invention is achieved in that places spheroid or the little solid of rotation in two broad in the middle between V-type groove and plane or curved surface, utilize spheroid or solid of rotation to be come transferring power by the frictional force that wedging produces.Because the equivalent coefficient of friction between V-type groove and spheroid or the solid of rotation increases, the angle of wedge is got higher value (greater than 8.5 °) just becomes possibility.The benefit that the big angle of wedge brings is: when external force dropped to zero, the suffered positive pressure of spheroid or solid of rotation also disappears (omitting the influence of gravity and spring force) thereupon, need not to overcome the frictional force that produces because of positive pressure when surmounting, and was very brisk.Under the identical situation of the suffered positive pressure of spheroid or solid of rotation, the angle of wedge is big more, and bearing capacity is high more.
Fig. 1 is applied to the plan view of bicycle freewheel for the present invention.1 is shell among the figure, and 2 is fuse, and 3 is spheroid.Spheroid 3 places between the plane of the V-type groove of shell 1 and fuse 2.The spring (not shown) forces spheroid to contact with the V-type groove of 3 shells 1.When shell 1 when certain direction is rotated, spheroid 3 is driven fuse 2 and rotates by wedging; When rotating in opposite direction, spheroid 3 is thrown off, and can not drive fuse 2 and rotate, and produces to surmount phenomenon.
In order to improve working condition, fuse 2 also can be made curved surface with spheroid 3 contacted surfaces: the shape on the end face is made log spiral, and can to remain on its angle of wedge of any position wedging constant; The shape of axial section is made arcs of recesses can reduce contact stress.
When the present invention is applied to other occasion, not only can in the hole, open the V-type groove, also open the V-type groove on garden cylinder or the end face outside.
The present invention also can be applicable to along what orientation of orbit moved surmount device.
Claims (5)
1, large wedge angle overrunning clutch is a kind of novel free wheel device, it is characterized in that:
A. utilize the little solid of rotation in spheroid or two broad in the middle to be come transferring power by the frictional force that wedging produces.
B. spheroid or solid of rotation place between V-type groove and plane or the curved surface.
2, free wheel device according to claim 1 is characterized in that opening the V-type groove in the hole.
3, free wheel device according to claim 1 is characterized in that the garden cylinder is opened the V-type groove outside.
4, free wheel device according to claim 1 is characterized in that opening the V-type groove at end face.
5,, it is characterized in that surmounting device and move along orientation of orbit according to the described free wheel device of claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85107128.7A CN1005123B (en) | 1985-09-17 | 1985-09-17 | Large wedge angle overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85107128.7A CN1005123B (en) | 1985-09-17 | 1985-09-17 | Large wedge angle overrunning clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85107128A true CN85107128A (en) | 1986-07-09 |
| CN1005123B CN1005123B (en) | 1989-09-06 |
Family
ID=4795466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85107128.7A Expired CN1005123B (en) | 1985-09-17 | 1985-09-17 | Large wedge angle overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1005123B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410315A (en) * | 2011-08-22 | 2012-04-11 | 王振良 | Non-contact reversion brake |
| CN102909601A (en) * | 2012-10-26 | 2013-02-06 | 济南天辰铝机制造有限公司 | Master-slave parallel guide roller conveying device |
| CN109707760A (en) * | 2017-10-25 | 2019-05-03 | 金仁成 | Public safety field voussoir brake |
-
1985
- 1985-09-17 CN CN85107128.7A patent/CN1005123B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410315A (en) * | 2011-08-22 | 2012-04-11 | 王振良 | Non-contact reversion brake |
| CN102410315B (en) * | 2011-08-22 | 2013-01-23 | 王振良 | Non-contact reversion brake |
| CN102909601A (en) * | 2012-10-26 | 2013-02-06 | 济南天辰铝机制造有限公司 | Master-slave parallel guide roller conveying device |
| CN109707760A (en) * | 2017-10-25 | 2019-05-03 | 金仁成 | Public safety field voussoir brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1005123B (en) | 1989-09-06 |
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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 | ||
| C13 | Decision | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |