CN103277426B - Free wheel device - Google Patents
Free wheel device Download PDFInfo
- Publication number
- CN103277426B CN103277426B CN201310216028.4A CN201310216028A CN103277426B CN 103277426 B CN103277426 B CN 103277426B CN 201310216028 A CN201310216028 A CN 201310216028A CN 103277426 B CN103277426 B CN 103277426B
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- folded spring
- roller
- right baffle
- barrier portion
- plate
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Abstract
The present invention relates to a kind of free wheel device, early failue is caused because folded spring is easy to wear for solving existing free wheel device, the shortcoming that life-span is short, construct a kind of free wheel device, it comprises cam ring, left baffle, the circumferential surface of cam ring is uniformly distributed several roller surfaces, right baffle-plate and or the opposite flank of right baffle plate be provided with the barrier portion stretched to above roller surface, barrier portion is positioned at the adjoiner of two roller surfaces, the front end of folded spring is connected with roller-contact, rear end contacts with barrier portion and connects, the rear end of folded spring is provided with a bending part extended back, the bottom in barrier portion is provided with the clamping part of clamping folded spring bending part.Folded spring is by bending part stationary positioned in the present invention, its top and bottom unsettled, can not wear and tear, folded spring top and bottom can be effectively avoided frictional interference and impaired problem to occur because contact, improve working stability and the reliability of folded spring, to improve the free wheel device mean time between failures.
Description
Technical field
The present invention relates to a kind of clutch, particularly relate to a kind of free wheel device be applied in twin-turbine torque converter.
Background technique
At present, the loader of domestic 80% all adopts twin-turbine torque converter, twin-turbine torque converter and free wheel device co-operation, to gearbox input power, automatically can realize the switching between high speed light loading and low-speed heave-load, increase work efficiency, reduce driver's labor intensity.High speed light loading mainly refers to loader transported material or traveling process, and such as loader sky bucket or loading are advanced, and now travelling speed is very fast, but running resistance is less; Low-speed heave-load mainly refers to loader shovel dress material, and now scraper bowl inserts in material, and advance resistance is huge, but forward velocity is lower.
Existing without retainer free wheel device primarily of the part such as input gear 1, right baffle-plate 2, cam ring 3, roller 4, right baffle plate 5, outer ring gear 6 and folded spring 7 composition, as shown in Figure 1 and Figure 2.Cam ring 3, right baffle-plate 2, right baffle plate 5 and input gear 1 are rigidly connected by bolt, cam ring 3 is circumferentially evenly distributed with roller slot, two end faces of groove are sealed with right baffle-plate 2 and right baffle plate 5, roller 4 and folded spring 7 is placed in groove, folded spring 7 applies active force to the roller 4 coexisted in a groove, to offset roller 4 and outer ring gear 6 frictional force in a circumferential direction, roller 4 is made to be adjacent to cam race and outer ring gear raceway all the time.When outer ring gear 6 rotating speed is greater than input gear 1 rotating speed, outer ring gear 6 and cam 3 are fitted together (during design, roller Self-locking angle θ is less than threshold state) by roller 4, and transmission of power is exported to input gear 1.
The roller slot isolation that this structure free wheel device cam ring circumferentially distributes and placement roller, folded spring, the corresponding folded spring of each roller, folded spring gives each roller pretightening force, can ensure that all rollers work simultaneously.
There are two shortcomings in this structure free wheel device: one, cam ring cost is high, cam ring and baffle portion are integrated, as shown in Figure 3, cam ring is generally formed by expensive beating steel GCr15 materials processing, and obtains baffle portion make product cost high by removing materials processing mode on cam ring, two, there is the risk of interfering with cam and left baffle in spring location, this structure free wheel device spring locating features as shown in Figure 4, on the cylindrical of right baffle-plate 2 uniform setting equal with roller quantity and the projection stretched out above folded spring 7, on the cylindrical of right baffle plate 5 uniform setting equal with roller quantity and the projection stretched out above folded spring 7, uniform setting on cam ring 3 and the quantity barrier portion 10 equal with roller, spring retainer space is formed by the leading flank being positioned at projection bottom surface on right baffle-plate and right baffle plate and cam ring barrier portion, in the process of folded spring 7 with cam ring 3 High Rotation Speed, on a left side while moving away from cam ring central direction by centrifugal action is past, to-and-fro motion in the spacing space that the inner side surface of right baffle plate and cam ring barrier portion leading flank are formed, folded spring 7 top may to contact with the bottom surface of right projection with left projection and frictional interference occurs, contact with the roller surface of cam ring the problem that frictional interference occurs bottom it.Interference and the friction of folded spring 7 and these parts can cause folded spring impaired and shorten its working life.
Summary of the invention
The object of the invention is to the easy to wear and problem that causes early failue, life-span short of folded spring for existing free wheel device and the free wheel device that a kind of folded spring is not easy to wear, reliability is high, the life-span is long is provided.
Technological scheme of the present invention is achieved in that a kind of free wheel device of structure, comprise cam ring, roller, folded spring, correspondence is fixed on the right baffle-plate of cam ring both sides and right baffle plate, the circumferential surface of cam ring is evenly distributed with several roller surfaces, right baffle-plate and or the opposite flank of right baffle plate be provided with the barrier portion stretched to above roller surface, barrier portion is positioned at the adjoiner of adjacent two roller surfaces, each roller surface and be positioned at the barrier portion at these roller surface two ends, right baffle-plate and right baffle plate form a roller slot, in each roller slot, correspondence arranges a roller and folded spring, the front end of folded spring is connected with roller-contact, rear end contacts with described barrier portion and connects, the rear end of folded spring is provided with a bending part extended back, the bottom in barrier portion is provided with the clamping part of clamping folded spring bending part, spring rear portion is fixed.In the present invention, folded spring is fixed by the bending part at its rear portion and the cooperation of clamping part, therefore at the top of folded spring also just without the need to arrange prevent folded spring from throwing away structure member, folded spring only contacts with barrier portion with roller respectively at its two ends and connects, the flexible of folded spring can not occur to rub with miscellaneous part and cause wearing and tearing, therefore can be extended widely the working life of folded spring.
In the present invention as stated above, clamping part is made up of the gap holding folded spring bending part bottom barrier portion and between cam ring, and the bending part of folded spring is clamped in described gap.
In the present invention as stated above, barrier portion is made up of the left projection be arranged on right baffle-plate right flank and the right projection be arranged on right baffle plate left surface, left projection mutually flushes with the front-end face of right projection and contacts with the ear end face of described folded spring, left projection and right baffle-plate are structure as a whole, and right projection and right baffle plate are structure as a whole.
The beneficial effect that the present invention compared with prior art has: in the present invention, folded spring is fixed by the bending part at its rear portion and the cooperation of clamping part, therefore at the top of folded spring also just without the need to arrange prevent folded spring from throwing away structure member, folded spring only contacts with barrier portion with roller respectively at its two ends and connects, the flexible of folded spring can not occur to rub with miscellaneous part and cause wearing and tearing, therefore can be extended widely the working life of folded spring.
Accompanying drawing explanation
Fig. 1 is the longitudinal cross section of existing free wheel device;
Fig. 2 is existing free wheel device side direction half sectional view;
Fig. 3 is the structural representation of cam ring in existing free wheel device;
Fig. 4 is the detailed view of I in Fig. 2;
Fig. 5 is the longitudinal cross section of free wheel device of the present invention;
Fig. 6 is the side direction half sectional view of free wheel device of the present invention;
Fig. 7 is the detailed view of II in Fig. 6;
Fig. 8 is the structural representation of right baffle plate in the present invention;
Fig. 9 is the structural representation of right baffle-plate in the present invention;
Figure 10 is folded spring schematic diagram of the present invention;
Figure 11 is right baffle-plate of the present invention, right baffle plate, cam, roller and folded spring package assembly schematic diagram.
Component title and sequence number in figure:
Input gear 1, right baffle-plate 2, left projection 21, cam ring 3, roller surface 31, roller 4, right baffle plate 5, right projection 51, outer ring gear 6, folded spring 7, barrier portion 10, bending part 71.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments is described
As shown in Fig. 5 Fig. 6 Fig. 7, free wheel device in the present embodiment includes the parts such as input gear 1, right baffle-plate 2, cam ring 3, roller 4, right baffle plate 5, outer ring gear 6 and folded spring 7, wherein right baffle-plate 2 and right baffle plate 5 lay respectively at the both sides of cam ring, and cam ring 3, input gear 1 and right baffle-plate 2 and right baffle plate 5 are bolted to connection.On the circumferential surface of cam ring 3, circumference is evenly distributed with several roller surfaces 31.As shown in Fig. 8 Fig. 9, the right flank of right baffle-plate 2 is provided with the left projection 21 identical with roller surface quantity, the left surface of right baffle plate 5 is provided with the same number of right projection 51 with roller surface, right baffle-plate 2, after right baffle plate 5 is mounted with cam ring 3, left projection 21 on right baffle-plate and right projection 51 one_to_one corresponding on right baffle plate form a barrier portion 10, left projection 21 in each barrier portion 10 and the front-end face of right projection 51 flush, each barrier portion 10 is positioned at the joint in two adjacent faces that are rolled into 31 accordingly, right baffle-plate 2, right baffle plate 5, cam ring 3, what be positioned at roller surface two ends forms a roller slot by left projection 21 together with the barrier portion that right projection 51 is formed, in each roller slot, correspondence is provided with a roller 4 and folded spring 7, the front end of folded spring 7 is connected with the cylndrical surface linear contact lay of roller 4, rear end then one, the right side bending part 71 backward of folded spring 7, be fixed in the clamping part that this bending part is formed in the gap between the lower surface and cam ring in barrier portion, the ear end face of folded spring contacts with the front-end face in barrier portion and connects.
Claims (2)
1. a free wheel device, comprise cam ring, roller, folded spring, correspondence is fixed on the right baffle-plate of cam ring both sides and right baffle plate, the circumferential surface of cam ring is evenly distributed with several roller surfaces, it is characterized in that right baffle-plate and or the opposite flank of right baffle plate be provided with the barrier portion stretched to above roller surface, described barrier portion is positioned at the adjoiner of adjacent two roller surfaces, each roller surface and be positioned at the barrier portion at these roller surface two ends, right baffle-plate and right baffle plate form a roller slot, in each roller slot, correspondence arranges a described roller and folded spring, the front end of described folded spring is connected with roller-contact, rear end contacts with described barrier portion, the rear end of described folded spring is provided with a bending part extended back, the bottom in described barrier portion is provided with the clamping part clamping described folded spring bending part, described clamping part is made up of the gap holding described folded spring bending part bottom barrier portion and between cam ring, the bending part of described folded spring is clamped in described gap.
2. free wheel device according to claim 1, it is characterized in that described barrier portion is made up of the left projection be arranged on right baffle-plate right flank and the right projection be arranged on right baffle plate left surface, described left projection mutually flushes with the front-end face of right projection and contacts with the ear end face of described folded spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216028.4A CN103277426B (en) | 2013-06-03 | 2013-06-03 | Free wheel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216028.4A CN103277426B (en) | 2013-06-03 | 2013-06-03 | Free wheel device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103277426A CN103277426A (en) | 2013-09-04 |
| CN103277426B true CN103277426B (en) | 2015-09-02 |
Family
ID=49060024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310216028.4A Active CN103277426B (en) | 2013-06-03 | 2013-06-03 | Free wheel device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103277426B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956817B (en) * | 2017-12-05 | 2019-09-17 | 广西柳工机械股份有限公司 | External star-wheel type one-way clutch |
| CN109296673A (en) * | 2018-11-21 | 2019-02-01 | 上海申赛机电控制技术有限公司 | Cantilever flat spring reset overrunning clutch |
| CN110094433A (en) * | 2019-05-20 | 2019-08-06 | 杭州前进通用机械有限公司 | Freewheel clutch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5636720A (en) * | 1995-11-29 | 1997-06-10 | General Motors Corporation | Moldable roller clutch cage with full support pockets |
| US5669476A (en) * | 1996-05-14 | 1997-09-23 | General Motors Corporation | Roller clutch with secure spring to cage mount |
| CN202140477U (en) * | 2011-03-23 | 2012-02-08 | 石光林 | Overrun clutch retainer |
| CN102913564A (en) * | 2012-11-07 | 2013-02-06 | 广西柳工机械股份有限公司 | Overrunning clutch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04302718A (en) * | 1991-03-29 | 1992-10-26 | Ntn Corp | One-way clutch |
-
2013
- 2013-06-03 CN CN201310216028.4A patent/CN103277426B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5636720A (en) * | 1995-11-29 | 1997-06-10 | General Motors Corporation | Moldable roller clutch cage with full support pockets |
| US5669476A (en) * | 1996-05-14 | 1997-09-23 | General Motors Corporation | Roller clutch with secure spring to cage mount |
| CN202140477U (en) * | 2011-03-23 | 2012-02-08 | 石光林 | Overrun clutch retainer |
| CN102913564A (en) * | 2012-11-07 | 2013-02-06 | 广西柳工机械股份有限公司 | Overrunning clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103277426A (en) | 2013-09-04 |
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