CN101016923A - Overrunning clutch for slow-speed no-load and high-speed transfer torque - Google Patents
Overrunning clutch for slow-speed no-load and high-speed transfer torque Download PDFInfo
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- CN101016923A CN101016923A CN 200610033525 CN200610033525A CN101016923A CN 101016923 A CN101016923 A CN 101016923A CN 200610033525 CN200610033525 CN 200610033525 CN 200610033525 A CN200610033525 A CN 200610033525A CN 101016923 A CN101016923 A CN 101016923A
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- voussoir
- inner ring
- torsion spring
- outer ring
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Abstract
A overrun clutch with low-speed idle high-speed transmission torque is substantially formed by an outer ring, an inner ring, a wedge block, a main support, a torsion spring and limit pins, wherein the main support whit baffle plate is between the outer and inner rings, several limit pins and wedges are distantly arranged on the baffle plate, two end axles of the wedge are clearance fit with a baffle plate hole, the distance between the outer and inner rings are smaller than the long radius of the wedge but longer than the short radius, the torsion spring sheathes the end axles, two arms of the torsion spring are forced on the limit pin near the short radius of the wedge and the side face of the short radius, via the pre-tightening force of torsion spring, the wedge deflects to long radius, to release the contact between the wedge face and the track in low speed, and in high, via inertia force, the wedge face contacts the inner and outer tracks. The invention can be used in all transmitters in wind generator or the like.
Description
Technical field
The present invention relates to a kind of free wheel device of slow-speed no-load and high-speed transfer torque, also be referred to as contactless free wheel device, belong to mechanical transmission.
Background technique
Existing contactless free wheel device such as Fig. 1, shown in 2, the centrifugal force that produces when inner ring a3 high speed rotating has overcome the pretightening force of spring a4 own, make the center of gravity of voussoir a2 outwards dish out, thereby make voussoir a2 self rotation and leave inside and outside raceway, inner ring a3 is high speed rotating and transmitting torque voluntarily, its objective is that clutch voussoir a2 and raceway when high speed rotating friction does not take place and increase the service life, when the torque of inner ring a3 output runs into big load, its speed descends, centrifugal force also descends naturally thereupon, when dropping to centrifugal force and can't overcome the pretightening force of spring a4, two wedge surfaces of voussoir a2 contact with inside and outside roller surface again, this moment, the speed of outer ring a1 was higher than inner ring a3, can make voussoir a2 be created in the frictional force action on two wedge surfaces of voussoir a2 and make voussoir a2 like this with the Internal and external cycle wedging by the linear differential of inside and outside raceway, outer ring a1 drives inner ring a3 rotation and the bigger torque of output, the contactless free wheel device of this kind is usually used in the stepless speed changes devices, play a part overdrive clutch, also can be used for speed reducer, play unloaded at a high speed, the effect that low speed is non-return.In a word, this type of clutch voussoir when static or low speed rotation contacts with the Internal and external cycle raceway always, and just can break away from the inside and outside raceway of clutch when high speed rotating.
But, for the safety installations of the transmission device of wind-driven generator, high-lift operation and under equal moment of torsion the slow-speed of revolution can't start and for all transmission devices of the reliable activated by inertia of high rotating speed, then need slow-speed no-load and high-speed transfer torque.Therefore, the inventor is at this demand, especial manufacture a kind of free wheel device of slow-speed no-load and high-speed transfer torque, this case promptly produces therefrom.
Summary of the invention
The object of the present invention is to provide a kind of free wheel device of slow-speed no-load and high-speed transfer torque, with the safety installations of the transmission device that is applicable to wind-driven generator, high-lift operation and under equal moment of torsion the slow-speed of revolution can't start and all transmission devices of the reliable activated by inertia of high rotating speed.
Solution of the present invention is:
A kind of free wheel device of slow-speed no-load and high-speed transfer torque, mainly by the outer ring, inner ring, voussoir, body frame, torsion spring and position limit pin are formed, body frame with baffle plate is arranged between outer ring and the inner ring, several position limit pins and several voussoirs are interruption-like to be erected on the baffle plate of body frame, the two end axles and the baffle holes of voussoir are Spielpassung, the major diameter of voussoir greater than the spacing of outer ring and inner ring minor axis less than the spacing of outer ring and inner ring, torsion spring set is located on the end axle of voussoir, and two arms of torsion spring act on respectively on the side near the position limit pin of voussoir minor axis and voussoir minor axis, pretightening force effect by torsion spring, voussoir changes to a lateral deviation of major diameter, the wedge surface of voussoir and roller surface are the non-contact shape when making static or the slow-speed of revolution, and during high rotating speed under the centrifugal force action of inertia, the wedge surface of voussoir just contacts with inside and outside roller surface.
Described body frame and outer ring are interference fit or are fixed on the outer ring with other Placement, and and leave the gap between the inner ring.
Described body frame and inner ring are interference fit or are fixed on the inner ring with other Placement, and and leave the gap between the outer ring.
After adopting said structure, the present invention's voussoir when static or low speed rotation separates with the Internal and external cycle raceway always, and when high speed rotating, just can contact with the Internal and external cycle raceway of clutch, also just say inner ring in the unloaded rotation of low speed, and just drive outer ring rotation and output torque at a high speed.
The present invention is mainly used in the transmission device of wind-driven generator.When wind-force acts on the wind wheel of generator, because it is all smaller just to have begun the torque and the rotating speed of wind wheel starting, normally be not have sizable wind-force, input shaft rotation that can't starter-generator, and the present invention can allow wind wheel output shaft drive clutch inner ring (outer ring) do low speed starting and unloaded rotation, when the commentaries on classics degree of inner ring (outer ring) reaches certain speed, inner ring (outer ring) combines with outer ring (inner ring), and the input shaft that drives generator by the inertia of exporting that high rotational speed produced is done the starting rotation.When the invention solves wind energy power because of the little a great problem that can't starter-generator of wind-force.
The present invention also is applicable to the safety installations of high-lift operation.When the high-lift operation place, when high-lift operation person under normal circumstances, the present invention can not contact rotation by low speed, does not influence normal operation; But once abnormal conditions appear in high-lift operation, when the worker dropped rapidly, the present invention's self-locking at once played a protective role, as the safety rope emergency brake device.The present invention also can be used in the crane equipment, reason be when hoist when slowly weight being sling or putting down, but the unloaded rotation of the present invention's low speed, when emergency occurring, when weight descended rapidly, the present invention's self-locking at once stoped the weight tenesmus.
In a word, in all transmission devices of the present invention's reliable activated by inertia of high rotating speed that the slow-speed of revolution can't start applicable to equal moment of torsion.
Description of drawings
Fig. 1 is the principle schematic of inner ring voussoir contact raceway when static or low speed rotation of existing contactless free wheel device;
Fig. 2 is the principle schematic that inner ring voussoir when high speed rotating of existing contactless free wheel device does not contact raceway;
Fig. 3 is the principle schematic that inner ring of the present invention (outer ring) voussoir when static or low speed rotation does not contact raceway;
Fig. 4 is inner ring of the present invention (outer ring) principle schematic that voussoir contacts with raceway when high speed rotating;
Fig. 5 is a voussoir schematic perspective view of the present invention;
Fig. 6 is a torsion spring side view of the present invention;
Fig. 7 is a torsion spring plan view of the present invention;
Fig. 8 is assembled portion schematic perspective views such as voussoir of the present invention, body frame;
Fig. 9 is a position limit pin schematic perspective view of the present invention.
Embodiment
See also shown in Fig. 3,4, the present invention has disclosed a kind of free wheel device of slow-speed no-load and high-speed transfer torque, mainly is made up of outer ring 1, inner ring 3, voussoir 2, body frame, torsion spring 4 and position limit pin 6.
Cooperate shown in Figure 8ly, body frame has two baffle plates 5, and body frame is arranged between outer ring 1 and the inner ring 3.In the present embodiment, body frame is to be interference fit with inner ring 3, also can other Placement be fixed on the inner ring 3, and and leave the gap between the outer ring 1.Certainly, body frame can also be interference fit with outer ring 1 or be fixed on the outer ring 1 with other Placement, and and leave the gap between the inner ring 3.
The structure of position limit pin 6 as shown in Figure 9, the structure of voussoir 2 is as shown in Figure 5.Several position limit pins 6 and several voussoirs 2 be interruption-like to be erected on the baffle plate 5 of body frame.The two end axles of voussoir 2 and baffle holes are the Spielpassung (see figure 8), guarantee that voussoir 2 can freely swing around the axle center of self.The major diameter of voussoir 2 greater than the spacing of outer ring 1 and inner ring 3 minor axis less than the spacing (seeing Fig. 3,4) of outer ring 1 and inner ring 3.
The structure of torsion spring 4 is shown in Fig. 6,7, and torsion spring 4 is set on the end axle of voussoir 2, and two arms of torsion spring 4 act on respectively on the side near the position limit pin 6 of voussoir 2 minor axis and voussoir 2 minor axis.
Cooperate shown in Figure 3, pretightening force effect by torsion spring 4, make voussoir 2 reverse around self axle center, and change to a lateral deviation of major diameter, be depressed near on the position limit pin 6 of voussoir 2 major diameters, and being subjected to this position limit pin 6 spacing can not pressing down again, the wedge surface and the roller surface of voussoir 2 are the non-contact shape when only needing to guarantee static or the slow-speed of revolution.And body frame and inner ring 3 (or outer ring 1) are interference fit, its objective is to make inner ring 3 (or outer ring 1) must drive voussoir 2, body frame rotation when rotated.
As shown in Figure 3, inner ring 3 is when static or low speed rotation, 2 of voussoirs do not contact with the raceway of outer ring 1, because of inner ring 3 drives voussoir 2, the low generation of body frame rotational speed can't overcome the precompression F0 that 4 pairs of voussoirs of torsion spring 2 act on to the centrifugal force F1 and the inertial force F2 of voussoir 2,, inner ring 3 do not do unloaded the acceleration so can not driving outer ring 1.
When inner ring 3 reaches certain rotating speed, when promptly centrifugal force F1 and inertial force F2 were greater than the precompression F0 of torsion spring 4, voussoir 2 can be stood erectly and around self axle center counter-rotating and make two wedge surfaces of voussoir 2 be close to inside and outside raceway, thereby drives outer ring 1 rotation and the output torque.
The present invention can also be used in similar above various fields of employment not only applicable to the transmission device of wind-driven generator, the safety installations of high-lift operation, has not just introduced one by one here.In a word, rotating speed can't normally directly be defeated by driven a great problems such as mechanical device slowly when this clutch had mainly solved and started to walk because of power source, also provided safety assurance in some specific dangerous operation simultaneously.
Claims (3)
1, a kind of free wheel device of slow-speed no-load and high-speed transfer torque, it is characterized in that: mainly by the outer ring, inner ring, voussoir, body frame, torsion spring and position limit pin are formed, body frame with baffle plate is arranged between outer ring and the inner ring, several position limit pins and several voussoirs are interruption-like to be erected on the baffle plate of body frame, the two end axles and the baffle holes of voussoir are Spielpassung, the major diameter of voussoir greater than the spacing of outer ring and inner ring minor axis less than the spacing of outer ring and inner ring, torsion spring set is located on the end axle of voussoir, and two arms of torsion spring act on respectively on the side near the position limit pin of voussoir minor axis and voussoir minor axis, pretightening force effect by torsion spring, voussoir changes to a lateral deviation of major diameter, the wedge surface of voussoir and roller surface are the non-contact shape when making static or the slow-speed of revolution, and during high rotating speed under the centrifugal force action of inertia, the wedge surface of voussoir just contacts with inside and outside roller surface.
2, a kind of free wheel device of slow-speed no-load and high-speed transfer torque according to claim 1, it is characterized in that: described body frame is fixed on the outer ring, and and leaves the gap between the inner ring.
3, a kind of free wheel device of slow-speed no-load and high-speed transfer torque according to claim 1, it is characterized in that: described body frame is fixed on the inner ring, and and leaves the gap between the outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100335250A CN100570170C (en) | 2006-02-07 | 2006-02-07 | A kind of free wheel device of slow-speed no-load and high-speed transfer torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100335250A CN100570170C (en) | 2006-02-07 | 2006-02-07 | A kind of free wheel device of slow-speed no-load and high-speed transfer torque |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101016923A true CN101016923A (en) | 2007-08-15 |
| CN100570170C CN100570170C (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100335250A Expired - Fee Related CN100570170C (en) | 2006-02-07 | 2006-02-07 | A kind of free wheel device of slow-speed no-load and high-speed transfer torque |
Country Status (1)
| Country | Link |
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| CN (1) | CN100570170C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102171480B (en) * | 2008-09-19 | 2015-03-11 | 舍弗勒技术股份两合公司 | Switchable free-wheel arrangement for a transmission, particularly for a crank-CVT of a motor vehicle |
| CN105422686A (en) * | 2015-12-05 | 2016-03-23 | 重庆华洋单向器制造有限公司 | Cam wedge block type one-way clutch |
| CN106533102A (en) * | 2016-12-21 | 2017-03-22 | 哈尔滨工业大学 | Permanent-magnet induction hybrid modular cascaded motor system |
| CN108533635A (en) * | 2018-06-07 | 2018-09-14 | 同济大学 | Torsional spring is tensioned freewheel clutch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2214840C3 (en) * | 1972-03-27 | 1981-03-26 | Stieber Antriebselemente GmbH, 68775 Ketsch | One-way clutch with sprags |
-
2006
- 2006-02-07 CN CNB2006100335250A patent/CN100570170C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102171480B (en) * | 2008-09-19 | 2015-03-11 | 舍弗勒技术股份两合公司 | Switchable free-wheel arrangement for a transmission, particularly for a crank-CVT of a motor vehicle |
| CN105422686A (en) * | 2015-12-05 | 2016-03-23 | 重庆华洋单向器制造有限公司 | Cam wedge block type one-way clutch |
| CN106533102A (en) * | 2016-12-21 | 2017-03-22 | 哈尔滨工业大学 | Permanent-magnet induction hybrid modular cascaded motor system |
| CN108533635A (en) * | 2018-06-07 | 2018-09-14 | 同济大学 | Torsional spring is tensioned freewheel clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100570170C (en) | 2009-12-16 |
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Granted publication date: 20091216 Termination date: 20170207 |
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