CN202215634U - Overrunning clutch - Google Patents
Overrunning clutch Download PDFInfo
- Publication number
- CN202215634U CN202215634U CN2011203050042U CN201120305004U CN202215634U CN 202215634 U CN202215634 U CN 202215634U CN 2011203050042 U CN2011203050042 U CN 2011203050042U CN 201120305004 U CN201120305004 U CN 201120305004U CN 202215634 U CN202215634 U CN 202215634U
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- CN
- China
- Prior art keywords
- cam
- wedge
- roller
- rollers
- wedge slot
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses an overrunning clutch. The overrunning clutch is characterized by comprising an output gear, a cam, rollers and an outer ring gear, wherein the cam is provided with a plurality of wedge-shaped grooves in the circumferential direction, and the two ends of the wedge-shaped grooves are respectively provided with a left baffle plate and a right baffle plate which are used for sealing the two end faces of the wedge-shaped grooves; the rollers are respectively arranged in the wedge-shaped grooves; and an elastic device for pushing the rollers to a locking end is arranged on one side of the rollers. The overrunning clutch has the advantages that: a retainer in the conventional overrunning clutch is eliminated; the rollers are respectively arranged in the wedge-shaped grooves of the cam, and are jacked to the wedge-shaped grooves by springs, so that all the rollers can participate in the bearing operation simultaneously; all the rollers are separately and uniformly stressed and do not affect one another, so that the reliability and the durability of the overrunning clutch are improved; and the problem of the failure of the overrunning clutch due to breakage of the retainer is radically solved, the reliability and the durability of the overrunning clutch are greatly improved, and the problem puzzling users for a long term is solved.
Description
Technical field
The utility model relates to a kind of engineering machinery transmission device technical field, especially a kind of free wheel device that is applied in the loader twin-turbine torque converter.
Background technique
At present, domestic 80% loader all adopts twin-turbine torque converter, twin-turbine torque converter and free wheel device co-operation; To gearbox input power; Can realize the automatic switchover between high speed light loading and low-speed heave-load, increase work efficiency, reduce driver's labor intensity.
Traditional free wheel device mainly is made up of output gear, spring, retainer, roller, cam and outer ring gear.Form the wedge shape self-locking structure between outer ring gear, roller and cam, when free wheel device during in work, a plurality of rollers realize that simultaneously self-locking bears and transmit outer load.In order to guarantee reliability of structure and durability, all rollers all should be participated in work simultaneously, but because the machining error of retainer, cam and outer ring gear is inevitable, this will cause the part roller can not participate in work; Those rollers of participating in work then since stressed excessive cause the roller surface and the conquassation of cam race face of roller, outer ring gear and cross quick-wearing lost efficacy, the retainer while also ruptures because of stand under load is inhomogeneous, and then causes the inefficacy of free wheel device.Because the maintenance of free wheel device and replacing are complicated especially, in case damage, will bring very big economic loss to the client.
Summary of the invention
The free wheel device that the utility model provided can solve the problem that causes free wheel device to lose efficacy because of the retainer fracture.
The solution of the utility model is such: include output gear, cam, roller and outer ring gear; Its circumferencial direction is provided with a plurality of recessed wedge slots in said cam upper edge, is respectively equipped with two end faces that right baffle-plate and right baffle plate are sealed wedge slot at the two ends of this wedge slot; Described roller is to be installed in respectively in each wedge slot; Side at said roller is provided with the elastic force apparatus of said roller being pushed to the locking end.
In such scheme, described wedge slot can be that the circumferencial direction of the said cam in edge evenly distributes; Described elastic force apparatus can be a folding spring, and an end of this folding spring withstands on the described roller, and the other end withstands on institute's wedge slot end that gets loose; What the bottom of said wedge slot and roller and outer ring gear formed is 6.8 °～8 ° from locking angle θ.
The utility model has the advantages that the retainer of having cancelled in traditional free wheel device; At cam a plurality of wedge slots are set; Roller is installed in respectively in the wedge slot, each roller all have folding spring with its roof pressure to wedge slot, guaranteed that all rollers all can participate in carrying work simultaneously; And each roller is evenly stressed separately, is independent of each other, and has improved the reliability and the durability of free wheel device; The utility model is applied in the mechanism of confluxing of turbine fluid torque converter; Fundamentally solved the free wheel device failure of removal that causes because of the retainer fracture; Improve the reliability and the durability of free wheel device greatly, solved long-term puzzlement user's a difficult problem.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Accompanying drawing 2 is G-G views of accompanying drawing 1.
Accompanying drawing 3 is structural representations of the wedge slot on the utility model cam.
Accompanying drawing 4 is the utility model structural representations from locking angle θ.
Accompanying drawing 5 is structural representations of the utility model spring.
Accompanying drawing 6 is plan views of accompanying drawing 5.
Present embodiment includes output gear 1, right baffle-plate 2, cam 3, roller 4, right baffle plate 5, outer ring gear 6, spring 7, wedge slot 8.
The utility model includes output gear 1, cam 3, roller 4 and outer ring gear 6; Its circumferencial direction is provided with a plurality of recessed wedge slots 8 in said cam 3 upper edges, is respectively equipped with two end faces that right baffle-plate 2 and right baffle plate 5 are sealed wedge slot at the two ends of this wedge slot 8; Described roller 4 is to be installed in respectively in each wedge slot 8; Side at said roller 4 is provided with the elastic force apparatus of said roller 4 being pushed to the locking end.
Described elastic force apparatus is a folding spring 7, and an end of this folding spring 7 withstands on the described roller 4, and the other end withstands on institute's wedge slot 8 end that gets loose, and the effect of folded spring is to guarantee that all rollers 4 all can participate in carrying work simultaneously; Because each roller all has an independently folded spring support, and 4 of rollers are evenly stressed separately, are independent of each other, and improved the reliability and the durability of free wheel device.
What the bottom of said wedge slot 8 and roller 4 and outer ring gear 6 formed is 6.8 °～8 ° from locking angle θ.
In the utility model embodiment shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, the accompanying drawing 5; The cam 3 of free wheel device and output gear 1 are rigidly connected through bolt; Its circumferencial direction is provided with a plurality of wedge slots 8 uniformly in cam 3 upper edges; Be respectively equipped with right baffle-plate 2 and right baffle plate 5 at the two ends of wedge slot 8 and seal two end faces of wedge slot 8, in each wedge slot 8, be separately installed with roller 4, right baffle-plate 2 and right baffle plate 5 be the axial motion that is used to limit roller 4; The end face of described right baffle-plate 2 is discoid, and its discoid end face blocks the wedge slot left end on the cam from the left side.The end face of described right baffle plate 5 is discoid; Its discoid end face blocks the wedge slot right-hand member on the cam from the right; Be provided with in a side of roller 4 and push it against the elastic force apparatus of locking end; What this elastic force apparatus adopted is folding spring 7, and an end of this folding spring 7 withstands on the roller 4, and the other end withstands on wedge slot 8 end that gets loose.The base plane of wedge slot 8 is the raceway working surface of height H, and it is 6.8 °～8 ° wedge-type self-locking mechanism that it and said roller 4 and outer ring gear 6 roller surface D form from locking angle θ in the lump.Under the low-speed heave-load operating mode, the rotating speed of outer ring gear 6 will be greater than cam 3, and each roller is automatic wedging under the outer ring gear frictional force action, the automatic locking of free wheel device, outer ring gear 6 and cam 3 common outputting powers.This moment, outer ring gear was rotated counterclockwise with respect to cam; Under the high speed light loading operating mode; The rotating speed of cam 3 will surmount outer ring gear 6, and each roller overcomes spring 7 under the outer ring gear frictional force action pretightening force gets loose automatically, guarantee that roller 4 can easily rotate under free state; Free wheel device is thrown off automatically, has only cam 3 outputting powers.This moment, outer ring gear turned clockwise with respect to cam.
Claims (6)
1. free wheel device; Include output gear (1), cam (3), roller (4) and outer ring gear (6); It is characterized in that its circumferencial direction is provided with a plurality of recessed wedge slots (8) in said cam (3) upper edge, be respectively equipped with two end faces that right baffle-plate (2) and right baffle plate (5) are sealed wedge slot at the two ends of this wedge slot (8); Described roller (4) is to be installed in respectively in each wedge slot (8); Side at said roller (4) is provided with the elastic force apparatus of said roller (4) being pushed to the locking end.
2. free wheel device according to claim 1, it is characterized in that described wedge slot (8) be along said cam (3) circumferencial direction evenly distribute.
3. free wheel device according to claim 1 is characterized in that described elastic force apparatus is folding spring (7), and an end of this folding spring (7) withstands on the described roller (4), and the other end withstands on institute's wedge slot (8) end that gets loose.
4. free wheel device according to claim 1, what it is characterized in that bottom and roller (4) and the outer ring gear (6) of said wedge slot (8) form is 6.8 °～8 ° from locking angle θ.
5. free wheel device according to claim 1, the end face that it is characterized in that described right baffle-plate (2) is discoid, its discoid end face blocks the wedge slot left end on the cam from the left side.
6. free wheel device according to claim 1, the end face that it is characterized in that described right baffle plate (5) is discoid, its discoid end face blocks the wedge slot right-hand member on the cam from the right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203050042U CN202215634U (en) | 2011-08-17 | 2011-08-22 | Overrunning clutch |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110235285 | 2011-08-17 | ||
| CN201110235285.3 | 2011-08-17 | ||
| CN2011203050042U CN202215634U (en) | 2011-08-17 | 2011-08-22 | Overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215634U true CN202215634U (en) | 2012-05-09 |
Family
ID=45379144
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110240467XA Pending CN102305249A (en) | 2011-08-17 | 2011-08-22 | Overrun clutch |
| CN2011203050042U Expired - Fee Related CN202215634U (en) | 2011-08-17 | 2011-08-22 | Overrunning clutch |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110240467XA Pending CN102305249A (en) | 2011-08-17 | 2011-08-22 | Overrun clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102305249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305249A (en) * | 2011-08-17 | 2012-01-04 | 广西柳工机械股份有限公司 | Overrun clutch |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661337A (en) * | 2012-05-07 | 2012-09-12 | 吉林大学 | Overrunning clutch for confluence mechanism of double-turbine hydraulic torque converter |
| DE102012221717A1 (en) * | 2012-11-28 | 2014-05-28 | Schaeffler Technologies Gmbh & Co. Kg | Freewheel cage |
| CN105090281A (en) * | 2015-07-22 | 2015-11-25 | 杭州宗兴齿轮有限公司 | Reinforced overrunning clutch |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2566044Y (en) * | 2002-08-20 | 2003-08-13 | 徐州装载机厂 | Freewheel clutch device |
| CN2753921Y (en) * | 2004-12-13 | 2006-01-25 | 杜成甫 | Loading machine freewheel clutch |
| US7490708B2 (en) * | 2005-03-28 | 2009-02-17 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Automatic traction enhancement for a transaxle |
| CN201344213Y (en) * | 2008-12-16 | 2009-11-11 | 任德睦 | Roller-type overrunning clutch of outer star wheel for loader |
| CN201377528Y (en) * | 2009-03-25 | 2010-01-06 | 石光林 | Roller-type overrunning clutch |
| CN201539518U (en) * | 2009-05-21 | 2010-08-04 | 广西柳工机械股份有限公司 | Overrunning clutch spring positioning apparatus |
| CN201651114U (en) * | 2010-04-28 | 2010-11-24 | 龙工(江西)齿轮有限公司 | Novel transmission overrunning clutch |
| CN102305249A (en) * | 2011-08-17 | 2012-01-04 | 广西柳工机械股份有限公司 | Overrun clutch |
-
2011
- 2011-08-22 CN CN201110240467XA patent/CN102305249A/en active Pending
- 2011-08-22 CN CN2011203050042U patent/CN202215634U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305249A (en) * | 2011-08-17 | 2012-01-04 | 广西柳工机械股份有限公司 | Overrun clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102305249A (en) | 2012-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20180822 |