CN201606429U - Roller type overrunning coupler - Google Patents
Roller type overrunning coupler Download PDFInfo
- Publication number
- CN201606429U CN201606429U CN2010201148291U CN201020114829U CN201606429U CN 201606429 U CN201606429 U CN 201606429U CN 2010201148291 U CN2010201148291 U CN 2010201148291U CN 201020114829 U CN201020114829 U CN 201020114829U CN 201606429 U CN201606429 U CN 201606429U
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- China
- Prior art keywords
- roller
- wheel
- star
- limited rack
- limit stop
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- Expired - Fee Related
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Abstract
The utility model discloses a roller type overrunning coupler which includes a hub, a star wheel, a left pin roller limit stop, a right pin roller limit stop and a plurality of pin rollers. Clearance fit is formed between the star wheel and the hub. The outer edge of the start wheel is uniformly provided with a plurality of wedge slots and a plurality of grooves; and the number of the wedge slots and the number of the grooves are same. The left pin roller limit stop and the right pin roller limit stop are arranged at the two sides of the outer edge of the star wheel; the limit stop on the left pin roller limit stop penetrates the grooves and is fixed with the right pin roller limit stop; the inner surface of the hub is uniformly provided with a plurality of convex slots the sections of which are parabolas; the pin rollers are arranged in an empty cavity formed by the wedge slots and the convex slots, and can displace inside the empty cavity along the peripheral direction; the two ends of the pin rollers are located by a limit cavity formed by the left pin roller limit stop and the right pin roller limit stop, and can display inside the limit cavity along the radius direction of the star wheel. The roller type overrunning coupler can effectively transmit torques, and can sufficiently use inertance, has good power effect and long service life, and overcomes the technical failures of easy slipping and locking, etc, of the traditional overrunning coupler.
Description
(1), technical field:
The utility model relates to mechanical transmission, is specifically related to a kind of free wheel device that is used for automobile, motorcycle and other machinery transmission.
(2), background technique:
Free wheel device is one of mechanically operated basic part.It is that conversion with the velocity variations of driving and driven parts or sense of rotation realizes a kind of clutch of clutch function voluntarily, is widely used as rate switching device, inversion set and intermittent motion device in mechanical transmission, and is of many uses.Existing tooth embedding engagement overdrive clutch generally comprises parts such as foreign steamer, ratchet, ratchet, sheet spring, and ratchet ejected when the sheet spring stretched, foreign steamer and ratchet engaged, thus drive, when shrinking, realizes the sheet spring surmounting.Its shortcoming is that load is less, and operating noise is big, because ratchet and sheet spring structure are limit, occur wearing and tearing and aging easily, thereby life of clutch is shorter.Roller overrunning clutch common on the market is generally pressure spring type, and clutch is made up of outer hub, star-wheel, spring and roller, and roller and roller support place between star-wheel and the outer hub, promotes roller when spring stretches and forms driving, forms when spring shrinks to surmount.Its shortcoming is the clutch unstable properties, and when spring and lubricant grease viscous, clutch can not surmount, because spring is easily aging, so life of clutch is shorter.
(3), content of the present invention:
The purpose of this utility model is to provide a kind of roller-type overrunning clutch, and transmission is effective, structural strength is high, stable performance, long service life.
For achieving the above object, the utility model comprises outer hub, star-wheel, comprise the post position-limited rack that rolls left, right roller position-limited rack, a plurality of rollers, star-wheel forms Spielpassung with outer hub by bearing, evenly have a plurality of wedge slots on the star-wheel outer rim, activity is fixed with and the corresponding roller of wedge slot in the groove, the length of wedge slot is greater than the diameter of roller, the terminal degree of depth and the roller of wedge slot are complementary, the top degree of depth of wedge slot is less than the terminal degree of depth, have a plurality of grooves on the star-wheel outer rim, roll left post position-limited rack and right roller position-limited rack is separately fixed on the both sides of star-wheel outer rim, post position-limited rack and the right roller position-limited rack equal diameters of rolling left also is complementary with star-wheel, the post position-limited rack that rolls left is provided with a plurality of limited posts corresponding with groove, rolling left, corresponding wedge slot is provided with a plurality of left limit grooves on the post position-limited rack, it is parabolical tongue that outer hub internal surface evenly has a plurality of cross sections, tongue groove depth and wedge slot and roller are complementary, the number of tongue is the integral multiple of roller number, right roller position-limited rack is provided with and the corresponding right limit groove of left limit groove, and right roller position-limited rack is provided with and the corresponding fixed hole of limited post.
In technique scheme, outer hub can be done the different rotation of rotating speed with star-wheel, and connects power source and output member respectively.Outer hub inwall has a plurality of tongues, the star-wheel outer rim has a plurality of wedge slots, form cavity between the two, roller can be in cavity simultaneously along the circumferential direction with the radial direction displacement, when outer hub rotating speed was higher than star-wheel, roller entered the deep end of the wedge slot on the star-wheel outer rim automatically, and outer hub separates fully with star-wheel, realization surmounts, and can make full use of the inertia in the vehicle driving.When outer hub rotating speed is lower than star-wheel, roller under effect of inertia, enter automatically wedge slot on the star-wheel outer rim than shallow end, combine simultaneously than shallow end and outer hub tongue deep end with star-wheel, because outer hub, star-wheel, roller contact are closely, thereby transfer of torque is effective, the utility model scheme adopts roller to carry out transmission, roller is an entity structure, simple in structure, intensity is higher, even there is mild wear also not influence transmission, thereby stable performance, long service life.
(4), description of drawings:
Accompanying drawing 1 is the outer hub and the star-wheel separated state sectional view of a kind of roller-type overrunning clutch of the utility model;
Accompanying drawing 2 is the outer hub and the star-wheel bonding state sectional view of a kind of roller-type overrunning clutch of the utility model;
Accompanying drawing 3 is the structural representation of a kind of roller-type overrunning clutch of the utility model.
(5), embodiment:
Below in conjunction with accompanying drawing a kind of roller-type overrunning clutch of the utility model is described further:
As Fig. 1, Fig. 2, Fig. 3 as seen, present embodiment is applied to the driving wheel of vehicle.Comprise in outer hub 1, star-wheel 2, the post position-limited rack 3 that rolls left, right roller position-limited rack 10, the present embodiment and be provided with 3 rollers 4.Star-wheel 2 forms Spielpassung with outer hub 1 by bearing, evenly have 3 wedge slots 5 in the present embodiment on star-wheel 2 outer rims, the length of wedge slot 5 is greater than the diameter of roller 4, the terminal degree of depth and the roller 4 of wedge slot 5 are complementary, the top degree of depth of wedge slot 5 is less than the terminal degree of depth, have a plurality of grooves 6 on star-wheel 2 outer rims, the cross arrangement on star-wheel 2 outer rims of wedge slot 5 and groove 6.Roll left post position-limited rack 3 and right roller position-limited rack 10 is separately fixed on the both sides of star-wheel 2 outer rims, post position-limited rack 3 and right roller position-limited rack 10 equal diameters of rolling left also are complementary with star-wheel 2, the post position-limited rack 3 that rolls left in this example is provided with 3 limited posts 7 corresponding with groove 6, right roller position-limited rack 10 is provided with and left limit groove 8 corresponding right limit grooves 11, and right roller position-limited rack 10 is provided with and limited post 7 corresponding fixed holes 12.The limited post 7 on the post position-limited rack 3 of rolling left passes the groove 6 on star-wheel 2 outer rims, is fixed in the fixed hole 12 on the right roller position-limited rack.Rolling left, corresponding wedge slot 5 is provided with a plurality of left limit grooves 8 on the post position-limited rack 3, and it is parabolical tongue 9 that outer hub 1 internal surface evenly has a plurality of cross sections, and tongue 9 groove depths and wedge slot 5 and roller 4 are complementary, and the number of tongue 9 is the integral multiple of roller 4 numbers.Roller 4 is installed in wedge slot 5 and the tongue 9 formed cavitys and displacement along the circumferential direction therein, roller 4 is installed in to be cooperated with right limit groove 11 on the right side roller position-limited rack 10 by the left limit groove 8 on the post position-limited rack 3 that rolls left and forms in the limit chamber and can be therein along star-wheel 2 radial direction displacements, under the limit chamber effect, roller 4 can guarantee moving direction, can not deflect.
Have riveting tenon or the gear that is complementary with the vehicle power axle on star-wheel 2 inner chambers of free wheel device, the vehicle power axle connects with star-wheel 2, and provides torque to star-wheel 2, and output members such as outer hub 1 and wheel fix.When star-wheel 2 rotated, roller moved to wedge slot 5 tops under effect of inertia, and combined with tongue 9 upper limbs on the outer hub 1, and under roller 4 effects, outer hub 1 intersects with star-wheel 2, and driven by star-wheel 2 external hubs 1 and wheel this moment.When star-wheel 2 speed reduce, outer hub 1 continues rotation under effect of inertia, roller 4 descends and slides into wedge slot 5 ends of star-wheel 2, this moment, outer hub 1 formed Spielpassung with star-wheel 2, rotate with different rotating speeds, realization surmounts, thereby guarantees that vehicle can make full use of inertia, fully improves the kinetic energy utilization rate.Roller 4 moves along radial direction in limit chamber 8 in the process of rise and fall all the time, can not produce lateral shift.
Adapt to different Environmental Conditions, the utility model can be changed installation direction, both can be driven by the external hub of star-wheel, also can be driven by the external hub of star-wheel.
According to using the object difference, the utility model can use a plurality of rollers to carry out transmission, a plurality of wedge slots of relative set, and roll left post position-limited rack and right roller limited post are done corresponding modification.
This novel free wheel device is simple and reliable for structure, and transmission is effective, and parts still can transmission through long term wear, long service life.
Claims (1)
1. roller-type overrunning clutch, comprise outer hub (1), star-wheel (2), it is characterized in that: also comprise the post position-limited rack (3) that rolls left, right roller position-limited rack (10), a plurality of rollers (4), said star-wheel (2) forms Spielpassung with outer hub (1) by bearing, evenly have a plurality of wedge slots (5) on star-wheel (2) outer rim, activity is fixed with and the corresponding roller of wedge slot (5) (4) in the groove, the length of wedge slot (5) is greater than the diameter of roller (4), the terminal degree of depth of wedge slot (5) and roller (4) are complementary, the top degree of depth of wedge slot (5) is less than the terminal degree of depth, have a plurality of grooves (6) on star-wheel (2) outer rim, roll left post position-limited rack (3) and right roller position-limited rack (10) is separately fixed on the both sides of star-wheel (2) outer rim, post position-limited rack (3) and right roller position-limited rack (10) equal diameters of rolling left also is complementary with star-wheel (2), the post position-limited rack (3) that rolls left is provided with a plurality of limited posts (7) corresponding with groove (6), the post position-limited rack (3) that rolls left is gone up corresponding wedge slot (5) a plurality of left limit grooves (8) is set, it is parabolical tongue (9) that outer hub (1) internal surface evenly has a plurality of cross sections, tongue (9) groove depth and wedge slot (5) and roller (4) are complementary, the number of tongue (9) is the integral multiple of roller (4) number, right roller position-limited rack (10) is provided with and the corresponding right limit groove of left limit groove (8) (11), and right roller position-limited rack (10) is provided with and the corresponding fixed hole of limited post (7) (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201148291U CN201606429U (en) | 2010-02-02 | 2010-02-02 | Roller type overrunning coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201148291U CN201606429U (en) | 2010-02-02 | 2010-02-02 | Roller type overrunning coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606429U true CN201606429U (en) | 2010-10-13 |
Family
ID=42951135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201148291U Expired - Fee Related CN201606429U (en) | 2010-02-02 | 2010-02-02 | Roller type overrunning coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606429U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195835A (en) * | 2013-04-19 | 2013-07-10 | 温岭市甬岭机械厂 | Inward-turning one-way clutch |
| CN105317881A (en) * | 2015-12-09 | 2016-02-10 | 重庆耐迪机电有限公司 | Combined spring cavity overrun clutch |
| CN109152333A (en) * | 2017-11-08 | 2019-01-04 | 南京德朔实业有限公司 | Hand propelled self-powered traveling machine |
-
2010
- 2010-02-02 CN CN2010201148291U patent/CN201606429U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195835A (en) * | 2013-04-19 | 2013-07-10 | 温岭市甬岭机械厂 | Inward-turning one-way clutch |
| CN103195835B (en) * | 2013-04-19 | 2016-08-17 | 温岭市甬岭机械厂 | Inside turn one-way clutch |
| CN105317881A (en) * | 2015-12-09 | 2016-02-10 | 重庆耐迪机电有限公司 | Combined spring cavity overrun clutch |
| CN109152333A (en) * | 2017-11-08 | 2019-01-04 | 南京德朔实业有限公司 | Hand propelled self-powered traveling machine |
| CN109152333B (en) * | 2017-11-08 | 2021-11-19 | 南京德朔实业有限公司 | Hand-push type self-driving travelling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20140202 |