CN100570171C - A kind of controllable free wheeling device - Google Patents
A kind of controllable free wheeling device Download PDFInfo
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- CN100570171C CN100570171C CNB2008100701504A CN200810070150A CN100570171C CN 100570171 C CN100570171 C CN 100570171C CN B2008100701504 A CNB2008100701504 A CN B2008100701504A CN 200810070150 A CN200810070150 A CN 200810070150A CN 100570171 C CN100570171 C CN 100570171C
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Abstract
A kind of controllable free wheeling device can be used on the free wheeling device of automobile, three-wheel and two-wheeled motor vehicle.Comprise raceway rings, star-wheel, retentive control frame, locking roller, supporting roller, control unit and baffle plate etc.Be shaped on the eccentric circle cambered surface or the logarithm helicoid of at least one section plane or normal plane symmetry on the cylindrical of its star-wheel, remaining is an arc surface, be provided with groove between the maintenance pawl of retentive control frame, corresponding with the plane that is shaped on or eccentric circle cambered surface or logarithm helicoid and arc surface on the star-wheel cylindrical respectively.Roller is divided into locking roller and supporting roller, and the locking roller is arranged in the groove of the retentive control frame corresponding with the plane of star-wheel or eccentric circle cambered surface or logarithm helicoid, and supporting roller places the groove of the retentive control frame corresponding with the arc surface of star-wheel.The end face of star-wheel is provided with control unit, and the control flume that is shaped on the end face of the control end of control unit and retentive control frame is relative.This glider is owing to adopt roller bearing, and the change sliding mode is rolling condition, and it is good to slide effect, and rate of fault is low, and the life-span is long.
Description
Technical field
The invention belongs to automobile, three-wheel, two-wheeled motor vehicle technical field, be specifically related to a kind of controllable free wheeling device.
Background technique
Existing motorcycle two-way controllable overrunning glider, in the majority from existing documents and materials with the roller-type overrunning glider, but lacking of putting into practice from enforcement and unenforced prior art, has following common ground:
1) majority has adopted the 41st piece of the 10th known stage clip of chapter free wheel device of " mechanical design handbook " (2000 June the 2nd edition) the 4th volume, knock pin type roller resetting-mechanism, as: ZL00223238.3, ZL00222741.X.Or with torsion spring connection pusher dog and star wheel structure, rely on torsion spring torsion pusher dog drive roller is resetted, as: ZL98202373.1, ZL99232531.5.Above-mentioned traditional stage clip, knock pin type roller resetting-mechanism need processing mounting holes on star-wheel, assembling is difficulty; And the torsion spring of accommodation connects pusher dog and star wheel structure, and torsion spring easily and associated part produces interference, the originally not rich space of glider is hung and occupies in wiping.
2) side pressure generally adopted of the reverse engagement (being commonly called as counter dragging) of existing glider, frictional force during by pusher dog side and raceway rings contacts side surfaces makes pusher dog and star-wheel displacement, it is reverse to drive roller by pusher dog, realize reverse combination, as: ZL00223238.3, ZL98202373.1, ZL99232531.5.This kind structure frictional force size variation is by manipulator's grip control, and power is little to be difficult for oppositely, and power Da Yi makes the associated part excessive wear, bad control.
3) star-wheel of existing glider and the centering of raceway rings, how to cooperate with the raceway rings raceway with the residual cambered surface of known star-wheel cylindrical, or star-wheel increase Short Cylinder Surface cooperates with the raceway rings raceway, between this mechanism is mutual is sliding friction, frictional force is big, effect is slided in influence, and star-wheel and raceway rings contacting part are easy to wear, easy break-down.
4) existing glider for preventing the roller displacement, star-wheel is provided with little blocking means of being made up of steel ball and stage clip, as ZL98202373.1, ZL99232531.5.The compression spring hole that needs work to have relatively high expectations on this structure star-wheel, time-consuming.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned free wheeling device, propose a kind of controllable free wheeling device, use a kind of mechanical structure, become and slide to rolling, reach and reduce friction, improve the life-span, reduce component, be convenient to make, reduce cost, strengthen the purpose of control effect and raising reliability.According to the operating mode needs, can be two-way controlled, also can make the mono-directional overrun glider.
In order to solve the problems of the technologies described above, emphasis of the present invention is that free wheeling device has been done improvement to its core: set up supporting roller in the retentive control frame groove between residual cambered surface of star-wheel cylindrical and raceway rings, control unit is set on star-wheel, cancel traditional spring, knock pin type roller resetting structure, do not use torsion spring, little retaining steel ball and stage clip.Technological scheme of the present invention is as follows:
A kind of controllable free wheeling device comprises raceway rings, star-wheel, retentive control frame, locking roller, supporting roller, control unit, baffle plate etc.Star-wheel places raceway rings, and the retentive control frame is circular, is inserted between star-wheel and the raceway rings by the maintenance pawl on the annulus, and baffle plate is arranged on the end that raceway rings and star-wheel block roller.Be shaped on the eccentric circle cambered surface or the logarithm helicoid of at least one section plane or normal plane symmetry on the cylindrical of star-wheel, remaining is an arc surface, be provided with groove between the maintenance pawl of retentive control frame, corresponding with the plane that is shaped on or eccentric circle cambered surface or logarithm helicoid and arc surface on the star-wheel cylindrical respectively.Roller is divided into locking roller and supporting roller, and the locking roller is arranged in the groove of the retentive control frame corresponding with the plane of star-wheel or eccentric circle cambered surface or logarithm helicoid, and supporting roller places the groove of the retentive control frame corresponding with the arc surface of star-wheel.The end face of star-wheel is provided with control unit, and the control flume that is shaped on the end face of the control end of control unit and retentive control frame is relative.
Be shaped on multistage plane or eccentric circle cambered surface or logarithm helicoid and at least one section arc surface on the cylindrical of described star-wheel.Multistage plane or eccentric circle cambered surface or logarithm helicoid evenly distribute alternately with arc surface on the periphery of star-wheel.One section plane or eccentric circle cambered surface or logarithm helicoid correspondence are provided with a locking roller; One section arc surface correspondence is provided with at least one supporting roller, and each supporting roller correspondence is arranged in the groove of retentive control frame.
This glider has been cancelled traditional spring, knock pin type roller resetting-mechanism, and do not use torsion spring, little retaining steel ball and stage clip, can realize that still positive and negative combination and maintenance surmount state, its key is to utilize the velocity variations of the relative movement of raceway rings and star-wheel, make the positive and negative rotation of supporting roller change the positive and negative rotation of drive retentive control frame, and make the retentive control frame force the locking roller to be in positive and negative binding site, simultaneously, control unit is set, the retentive control frame is locked in the sliding state position, or is controlled at oppositely binding site.The supporting roller of setting up has simultaneously also improved the centering effect of raceway rings and star-wheel, has played the effect of roller bearing.
During work, when raceway rings rotating speed (supposition counterclockwise) during greater than star wheel rotate speed, raceway rings will drive supporting roller and rotate (referring to Fig. 7-1) in the same way, drive locking roller in the retentive control frame groove in conjunction with the backing pin do not work (referring to Fig. 8-1) of control unit (referring to Fig. 8-2) this moment; When the raceway rings rotating speed less than star wheel rotate speed when (counterclockwise), star-wheel will drive supporting roller counterrotating (referring to Fig. 7-2), driving the retentive control frame rotates, control unit shelves pin work (referring to Figure 10-1) this moment, block retentive control frame side, the locking roller is in sliding state (referring to Figure 10-2); When the push rod of control unit promotes backing pin disengaging control frame end groove bottom land and exceeds end face (referring to Fig. 9-1), control unit is self-indulgent to the retentive control frame, the oppositely combination (referring to Fig. 9-1) of locking roller.When control unit only was a backing pin (adopt welding, be connected or mode such as one-body molded and star-wheel are connected as a single entity), glider lost the reverse engagement function, and becomes unidirectional glider.
This controllable free wheeling device has following advantage:
1, owing to set up supporting roller, raceway rings and star-wheel are felt relieved, and become to slide into rolling, just like having set up roller bearing;
2, owing to set up supporting roller, the positive and negative speed difference conversion that combines by raceway rings and star-wheel of raceway rings and star-wheel need not traditional stage clip, ejector pin, also without torsion spring, also locks roller without the little retaining of steel ball stage clip, has enlarged not rich inner space.
3, reverse engagement (counter dragging) forces traction to become side pressure by side pressure initiatively to discharge, and it is more handy to operate.If change the structure of control unit, do not allow its reverse combination, promptly become the mono-directional overrun glider, enlarge its function of use.
4, reduce part, improved the assembling of part process, assembly, strengthened general effect.
5, for the motor that reverse gear is arranged provides the condition that free wheeling device is installed, can be widely used on automobile, motorcycle, the tricycle.
This controllable free wheeling device is when specifically mating with motorcycle, tricycle or automobile, and raceway rings (or star-wheel) is to be connected with the driven member configuration of car, and star-wheel (or raceway rings) is to be connected with the driving part configuration of car to realize.As on motorcycle, dispose sprocket wheel, star-wheel end on the raceway rings and increase engaging claw (or driving pin), baffle plate end Configuration Control Unit gets final product; Link to each other with tricycle live axle (or retarder driving gear) and go up the configuration link in raceway rings (or star-wheel), the increase parts of star-wheel (or raceway rings) link to each other with the reverse gear output shaft, just can become tricycle two-way controllable overrunning glider; Equally, go up the configuration link in raceway rings (or star-wheel) and link to each other with automobile driving axle (or driving gear of main reducing gear), the increase parts of star-wheel (or raceway rings) link to each other with the automobile gearbox output shaft, are expected to become automobile double to controllable free wheeling device.If controller assemblies is designed to a backing pin form, can on motorcycle, makes unidirectional glider and use.
Description of drawings
Fig. 1-the 1st, the planimetric map of controllable free wheeling device core institution;
Fig. 1-2 is the A-A sectional drawing of Fig. 1-1;
Fig. 2-the 1st, the planimetric map of star-wheel;
Fig. 2-the 2nd, the sectional drawing of star-wheel;
Fig. 3-the 1st, spring spindle formula control unit structural drawing;
Fig. 3-the 2nd, reed post rod type control unit structural drawing;
Fig. 3-the 3rd, dog post rod type control unit structural drawing;
Fig. 3-the 4th, stage clip pull-rod type control unit structural drawing;
Fig. 3-the 5th solely sells the structural drawing of formula control unit;
Fig. 4-the 1st, the planimetric map of retentive control frame;
Fig. 4-the 2nd, the profile of retentive control frame;
Fig. 5-the 1st, the plane of the periphery of star-wheel is one section, the supporting roller on the corresponding circle cambered surface is provided with a plurality of schematic representation;
Fig. 5-the 2nd, two section the structural representation of the plane of the periphery of star-wheel for facing mutually;
Fig. 6 is that the star-wheel plane is the schematic representation of the eccentric arc structure of symmetry;
Fig. 7-the 1st, supporting roller rotate schematic representation in the same way;
Fig. 7-the 2nd, supporting roller counterrotating schematic representation;
Fig. 8-the 1st, control unit backing pin position view when counterclockwise engaging;
Fig. 8-the 2nd, locking roller position view when counterclockwise engaging;
Fig. 9-the 1st, control unit backing pin position view when oil return is slided after counterclockwise engaging;
Fig. 9-the 2nd counterclockwise engages and locks the roller position view when back oil return is slided;
Figure 10-the 1st, control unit backing pin position view during counter dragging after counterclockwise engaging oil return and sliding;
Figure 10-the 2nd, locking roller position view during counter dragging after counterclockwise engaging oil return and sliding.
Embodiment
Referring to Fig. 1-1 and Fig. 1-2, controllable free wheeling device comprises raceway rings 1, star-wheel 2, retentive control frame 3, locking roller 4, supporting roller 5, control unit 6 and baffle plate 7.
In conjunction with as seen referring to Fig. 2-1 and Fig. 2-2, evenly be shaped on six sections planes 12 at interval on the cylindrical 11 of star-wheel 2, all the other are arc surface 13, star-wheel 2 places raceway rings 1, and circular retentive control frame 3 is set between them.Retentive control frame 3 is inserted between star-wheel 2 and the raceway rings 1 by the maintenance pawl on the annulus.
Referring to Fig. 4-1 and Fig. 4-2, be provided with groove 14 and 15 between the maintenance pawl of retentive control frame 3 again, corresponding with six sections planes 12 and six sections arc surfaces 13 of being shaped on star-wheel 2 cylindricals respectively.Six locking rollers 4 are arranged in six grooves 14 of retentive control frame 3 of six plane 12 correspondences of star-wheel 2, and six supporting rollers 5 place six grooves 15 of retentive control frame 3 of six arc surface 13 correspondences of star-wheel 2.
The end face 18 of star-wheel 2 is provided with control unit 6, and the control flume 17 that is shaped on the end face 16 of the control end of control unit 6 and retentive control frame 3 is relative.
Control unit 6 has many middle ways of realization, below is several concrete ways of realization:
A kind of is the spring spindle formula, see Fig. 3-1, comprise spring 20, backing pin 21 and push rod 22, spring 20 is pressed on the backing pin 21, backing pin 21 is as control end, is arranged on the star-wheel end face 18 in the through hole 31 (seeing Fig. 2-2), and push rod 22 is arranged in the hole 19 of bottom of control flume 17 of retentive control frame 3 (seeing Fig. 4-2), push rod 22 is by baffle plate 7 effects, and the control mechanism outer with glider is connected.
Second kind is to be the reed post rod type, see Fig. 3-2, comprise pawl type reed 23 and push rod 22, reed 23 is arranged between the end face of the lower end surface of star-wheel and retentive control frame, one end of reed 23 is stuck in the groove 32 of lower end surface of star-wheel (seeing Fig. 2-2), the ratchet of reed 23 is as control end, the control flume 17 that is shaped on the end face 16 of the ratchet of reed 23 and retentive control frame 3 is relative, push rod 22 is arranged in the hole 19 of bottom of control flume 17 of retentive control frame 3, push rod 22 is by baffle plate 7 effects, and the control mechanism outer with glider is connected.
The third is the dog post rod type, see Fig. 3-3, comprise dish type dog 24, stage clip 25 and push rod 22, dish type dog 24 is for having the structure likeness in form of dog on a disk, dog is as control end, and dog passes the hole on the star-wheel end face 18, relative with the control flume 17 that is shaped on the end face 16 of retentive control frame 3, push rod 22 is arranged in the hole 19 of bottom of control flume 17 of retentive control frame 3 (seeing Fig. 4-2), and push rod 22 is by baffle plate 7 effects, and the control mechanism outer with glider is connected.
The 4th kind is the stage clip pull-rod type, sees Fig. 3-4, comprises stage clip 26 and pull bar 27, stage clip is pressed on the pull bar, and the hole on the star-wheel end face 18 is passed as control end in the lower end of pull bar, relative with the control flume 17 that is shaped on the end face 16 of retentive control frame 3, the outer control mechanism of pull bar and glider is connected.
The 5th kind is only pin formula, sees Fig. 3-5, and control unit 6 only is a backing pin 28, and backing pin 28 adopts welding with star-wheel 2, be connected or mode such as one-body molded is connected as a single entity, and is static relatively, and the control flume 17 on the end face 16 of the protruding end of backing pin 28 and retainer 3 is relative.
In actual production, the plane on star-wheel 2 cylindricals 11 also can be one section, and shown in Fig. 5-1, supporting roller 5 TV stars take turns the length of the arc surface 13 on 2 the cylindrical 11, place one or more.As shown in the figure be 5.And for example shown in Fig. 5-2, the plane on the cylindrical 11 of star-wheel 2 is a two neighboring sections, and locking roller 4 correspondences are established two, and arc surface 13 is one section, and supporting roller 5 is distributed with 3.
In order to strengthen the locking effect of locking roller, the eccentric circle cambered surface based on the normal plane symmetry on plane also can be adopted in the plane on the cylindrical 11 of star-wheel 2, the A portion among the figure, and as shown in Figure 6, R is eccentric radius of a circle, determines according to the lock angle size.Also can adopt logarithm helicoid in addition based on the normal plane symmetry on plane.
Claims (9)
1, a kind of controllable free wheeling device comprises raceway rings (1), star-wheel (2), retentive control frame (3), roller, control unit (6) and baffle plate (7); Star-wheel (2) places raceway rings (1), and retentive control frame (3) is circular, is inserted between star-wheel (2) and the raceway rings (1) by the maintenance pawl on the annulus; Baffle plate (7) is arranged on the same end face of raceway rings (1) and star-wheel (2), and blocks an end of roller; Be shaped on the eccentric circle cambered surface or the logarithm helicoid of at least one section plane (12) or normal plane symmetry on the cylindrical (11) of star-wheel (2), remaining is arc surface (13), be provided with groove (14,15) between the maintenance pawl of retentive control frame (3), corresponding with the plane (12) that is shaped on or eccentric circle cambered surface or logarithm helicoid and arc surface (13) on star-wheel (2) cylindrical respectively; Roller is divided into locking roller (4) and supporting roller (5), locking roller (4) is arranged in the groove (14) of the retentive control frame (3) corresponding with the plane (12) of star-wheel (2) or eccentric circle cambered surface or logarithm helicoid, and supporting roller (5) places the groove (15) of the retentive control frame (3) corresponding with the arc surface (13) of star-wheel (2); It is characterized in that: the end face (18) of described star-wheel (2) is provided with control unit (6), and the control flume (17) that is shaped on the end face (16) of the control end of control unit (6) and retentive control frame (3) is relative.
2, controllable free wheeling device according to claim 1 is characterized in that: be shaped on multistage plane (12) or eccentric circle cambered surface or logarithm helicoid and at least one section arc surface (13) on the cylindrical (11) of described star-wheel (2).
3, controllable free wheeling device according to claim 2 is characterized in that: described multistage plane (12) or eccentric circle cambered surface or logarithm helicoid evenly distribute alternately with arc surface (13) on the periphery of star-wheel.
4, according to claim 2 or 3 described controllable free wheeling devices, it is characterized in that: described each section plane (12) or eccentric circle cambered surface or logarithm helicoid correspondence are provided with a locking roller (4); One section arc surface (13) correspondence is provided with at least one supporting roller (5), each supporting roller (5) correspondence is arranged in the groove (15) of retentive control frame (3), and described groove (15) is the groove of the retentive control frame (3) corresponding with the arc surface (13) of star-wheel (2).
5, controllable free wheeling device according to claim 4, it is characterized in that: described control unit (6) is the spring spindle formula, comprise spring (20), backing pin (21) and push rod (22), spring (20) is pressed on the backing pin (21), backing pin (21) is as control end, be arranged in the last through hole of star-wheel end face (18), push rod (22) is arranged in the hole (19) of bottom of control flume (17) of retentive control frame (3), and push rod (22) is connected with glider control mechanism outward by baffle plate (7).
6, controllable free wheeling device according to claim 4, it is characterized in that, described control unit (6) is the reed post rod type, comprise pawl type reed (23) and push rod (22), reed (23) is arranged between the end face of the lower end surface of star-wheel and retentive control frame, the ratchet of reed (23) is as control end, the control flume (17) that is shaped on the end face (16) of the ratchet of reed (23) and retentive control frame (3) is relative, push rod (22) is arranged in the hole (19) of bottom of control flume (17) of retentive control frame (3), and push rod (22) is connected with glider control mechanism outward by baffle plate (7).
7, controllable free wheeling device according to claim 4, it is characterized in that, described control unit (6) is the dog post rod type, comprise dish type dog (24), stage clip (25) and push rod (22), dish type dog (24) is for having the structural type of dog on a disk, dog is as control end, dog passes the hole on the star-wheel end face (18), relative with the control flume (17) that is shaped on the end face (16) of retentive control frame (3), push rod (22) is arranged in the hole (19) of bottom of control flume (17) of retentive control frame (3), and push rod (22) is connected with glider control mechanism outward by baffle plate (7).
8, controllable free wheeling device according to claim 4, it is characterized in that, described control unit (6) is the stage clip pull-rod type, comprise stage clip (26) and pull bar (27), stage clip is pressed on the pull bar, and the hole on the star-wheel end face (18) is passed as control end in the lower end of pull bar, relative with the control flume (17) that is shaped on the end face (16) of retentive control frame (3), the outer control mechanism of pull bar and glider is connected.
9, controllable free wheeling device according to claim 4 is characterized in that, described control unit (6) only is a backing pin (28), and backing pin (28) is connected as a single entity with star-wheel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100701504A CN100570171C (en) | 2008-08-21 | 2008-08-21 | A kind of controllable free wheeling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100701504A CN100570171C (en) | 2008-08-21 | 2008-08-21 | A kind of controllable free wheeling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101338801A CN101338801A (en) | 2009-01-07 |
| CN100570171C true CN100570171C (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100701504A Expired - Fee Related CN100570171C (en) | 2008-08-21 | 2008-08-21 | A kind of controllable free wheeling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN100570171C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2977230B1 (en) * | 2011-07-01 | 2015-06-26 | Meca System | DEBRAYABLE DEVICE FOR DRIVING ROTATION OF AN AXLE OF A VEHICLE WITH AT LEAST THREE WHEELS AND TWO MEANS OF DRIVING IN ROTATION OF THE AXLE |
| CN104976248B (en) * | 2015-06-26 | 2018-04-03 | 传孚科技（厦门）有限公司 | Double rolling key clutch |
| CN107559349A (en) * | 2017-10-26 | 2018-01-09 | 江苏南方轴承股份有限公司 | The freewheel clutch of roller self-supporting |
| CN109882525B (en) * | 2019-04-23 | 2024-06-18 | 吉林博承传动系统科技有限公司 | Bidirectional controllable overrunning clutch and control method thereof |
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2008
- 2008-08-21 CN CNB2008100701504A patent/CN100570171C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101338801A (en) | 2009-01-07 |
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Granted publication date: 20091216 Termination date: 20130821 |