阅读说明：本技术 一种双向离合轮 (Bidirectional clutch wheel ) 是由 朱英文 于 2020-06-24 设计创作，主要内容包括：本发明公开了一种双向离合轮,其技方案要点是：包括中心轴和套接在中心轴上的轮体,还包括套设在中心轴上的偏心环,所述轮体为筒状,所述偏心环位于所述轮体的内部,所述偏心环的内环设有可活动的滚动体,所述滚动体的外径介于所述中心轴的轴壁与所述偏心环的内环壁的最小间距和最大间距之间。通过在轮体内设置偏心圆,并在偏心环的内环中设置可活动的滚动体,当外力驱动当轮体转动时,偏心环将被一同带动旋转,此时滚动体将被卡死在中心轴的轴壁与偏心环的内环壁之间,从而使得中心轴能够随着轮体一同旋转；当外力驱动中心轴反向转动时,滚动体将与中心轴分离,即实现了离合作用。(The invention discloses a bidirectional clutch wheel, which has the technical scheme that: including the center pin with cup joint at the epaxial wheel body of center pin, still establish the epaxial eccentric ring in center including the cover, the wheel body is the tube-shape, eccentric ring is located the inside of wheel body, the inner ring of eccentric ring is equipped with mobilizable rolling element, the external diameter of rolling element is in the axle wall of center pin with between minimum interval and the maximum interval of the inner ring wall of eccentric ring. By arranging the eccentric circle in the wheel body and arranging the movable rolling body in the inner ring of the eccentric ring, when the wheel body is driven by external force to rotate, the eccentric ring is driven to rotate together, and the rolling body is clamped between the shaft wall of the central shaft and the inner ring wall of the eccentric ring, so that the central shaft can rotate together with the wheel body; when the central shaft is driven by external force to rotate reversely, the rolling bodies are separated from the central shaft, and the clutch action is realized.)

1. The utility model provides a two-way clutch wheel, includes the center pin and cup joints the wheel body on the center pin, its characterized in that, still establishes the eccentric ring on the center pin including the cover, the wheel body is the tube-shape, eccentric ring is located the inside of wheel body, eccentric ring's inner ring is equipped with the movable rolling element, the diameter of rolling element is in the axle wall of center pin with between minimum interval and the maximum interval of eccentric ring's inner ring wall.

2. The bi-directional clutch pulley according to claim 1, wherein the rolling elements are rollers, and the number of the rollers is at least one, and the axes of the rollers are parallel to the axis of the central shaft.

3. The bi-directional clutch pulley according to claim 2, wherein the ratio of the diameter of the roller to the diameter of the central shaft is 1/2-7/10.

4. The bi-directional clutch pulley according to claim 3, wherein the ratio of the diameter of the inner ring of the eccentric ring to the diameter of the central shaft is 2/5-3/5.

5. The bidirectional clutch wheel as claimed in claim 4, wherein the ratio of the center distance between the inner ring of the eccentric ring and the wheel body to the diameter of the central shaft is 1/10-1/4.

6. The bi-directional clutch of claim 2, wherein the ratio of the diameters of the rollers to the central shaft is 3/5, the ratio of the diameters of the inner ring of the eccentric ring to the central shaft is 10/23, and the ratio of the center-to-center distance between the inner ring of the eccentric ring and the wheel body to the diameter of the central shaft is 1/10.

7. The bidirectional clutch wheel according to claim 2, wherein the inner annular wall of the eccentric ring is provided with a pointed annular protrusion, and the middle part of the side wall of the roller is provided with an annular groove matched with the annular protrusion.

8. The bidirectional clutch wheel according to any one of claims 1 to 6, wherein the wheel body is externally provided with a transmission tooth, and the transmission tooth and the eccentric ring are located on the same plane.

9. The bidirectional clutch wheel according to any one of claims 1 to 6, wherein the wheel body is detachably connected to the eccentric ring by a key, or the wheel body is integrally connected to the eccentric ring.

10. A bi-directional clutch wheel according to any one of claims 1 to 6, characterized in that bearings are provided on both sides of the wheel body, and the wheel body is rotatably connected with the central shaft through the bearings.

Technical Field

The invention relates to the technical field of clutches, in particular to a bidirectional clutch wheel.

Background

The intensive cabinet requires a bidirectional clutch function between the driving wheel and the transmission shaft in the using process. In order to realize the function, the currently adopted method is to add an electromagnetic clutch on a transmission shaft and realize the clutch function between a transmission wheel and the transmission shaft through electromagnetic force. However, the electromagnetic clutch is low in torque and high in price, has high requirements for installation accuracy, and is easily damaged.

There is also mechanical roller formula clutch in the market, however the structure of the wheel body of current clutch is complicated relatively, is difficult to process, and most all need use roller cooperation spring, leads to manufacturing cost and assembly cost all to be higher.

Disclosure of Invention

The invention aims to solve the problems of complex structure and high manufacturing and assembling cost of the roller clutch in the prior art.

The technical solution of the invention is as follows: the utility model provides a two-way clutch wheel, includes the center pin and cup joints at the epaxial wheel body of center pin, still establishes at the epaxial eccentric ring of center including the cover, the wheel body is the tube-shape, eccentric ring is located the inside of wheel body, eccentric ring's inner ring is equipped with mobilizable rolling element, the external diameter of rolling element is in the axle wall of center pin with between the minimum interval and the maximum interval of eccentric ring's inner ring wall.

Preferably, the rolling bodies are rollers, at least one roller is arranged, and the axes of the rollers are parallel to the axis of the central shaft. The roller can realize bigger moment of torsion transmission effect, and rotate comparatively steadily.

Preferably, the diameter ratio of the roller to the central shaft is 1/2-7/10. In actual use, if the ratio of the diameter of the rollers to the central shaft is too small (less than 1/2), the rollers tend to become jammed between the central shaft and the inner ring of the eccentric ring, making separation difficult to achieve; if the ratio of the diameter of the roller to the diameter of the central shaft is too large, the structure is not compact. After multiple improvements and optimizations, the ratio of the diameters of the roller and the central shaft is controlled in the ratio range, so that on one hand, larger torque transmission can be realized, on the other hand, the roller cannot be easily locked, and a better clutch effect is achieved.

Preferably, the diameter ratio of the central shaft to the inner ring of the eccentric ring is 2/5-3/5, so that a sufficient gap is reserved between the central shaft and the rollers in a separation state, and the rollers are prevented from being mistakenly contacted with the central shaft due to the influence of impurities.

Preferably, the ratio of the center distance between the inner ring of the eccentric ring and the wheel body to the diameter of the central shaft is 1/10-1/4, so that the structure is more compact as far as possible on the premise of ensuring the clutch effect.

Preferably, the ratio of the diameters of the rollers to the central shaft is 3/5, the ratio of the diameters of the inner ring of the eccentric ring to the central shaft is 10/23, and the ratio of the center distance between the inner ring of the eccentric ring and the wheel body to the diameter of the central shaft is 1/10. Through measurement and calculation, a better collision effect can be obtained between the roller and the central shaft.

Preferably, the inner ring wall of the eccentric ring is provided with a pointed annular protrusion, and the middle part of the side wall of the roller is provided with an annular groove matched with the annular protrusion. The setting of annular bulge and annular groove can effectively fix a position the position of roller, prevents the axial skew of roller, and does not influence the conflict effect between roller and the central axle, and is less to the influence of moment of torsion transmission.

Preferably, the outer portion of the wheel body is provided with a transmission gear, and the transmission gear and the eccentric ring are located on the same plane, so that the wheel body can bear large torque. The transmission teeth can be gear teeth, or belt teeth, or chain teeth, etc.

Preferably, the wheel body and the eccentric ring are detachably connected through a key, or the wheel body and the eccentric ring are integrally connected.

Preferably, bearings are arranged on two sides of the wheel body, and the wheel body is rotatably connected with the central shaft through the bearings.

Compared with the prior art, the improvement effect of the scheme is as follows: by arranging the eccentric circle in the wheel body and arranging the movable rolling body in the inner ring of the eccentric ring, when the wheel body is driven by external force to rotate, the eccentric ring is driven to rotate together, and the rolling body is clamped between the shaft wall of the central shaft and the inner ring wall of the eccentric ring, so that the central shaft can rotate together with the wheel body; when the central shaft is driven by external force to rotate reversely, the rolling body is separated from the central shaft, and the wheel body cannot rotate together with the central shaft, so that the clutch effect is realized. Because in this scheme, no matter the direction of rotation of wheel body or central axis when initial is clockwise or anticlockwise, all can realize above-mentioned separation and reunion effect, so in fact be two-way clutch wheel. This scheme simple structure, the operation is reliable, and can transmit great moment of torsion, possesses better practicality.

Drawings

FIG. 1 is a schematic cross-sectional view of a bi-directional clutch of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A in FIG. 2;

FIG. 3 is a schematic cross-sectional view of embodiment 2 of a bi-directional clutch of the present invention;

in the drawings: 1-a wheel body; 1.1-gear teeth; 2-central axis; 3-an eccentric ring; 3.1-annular protrusion; 4-a roller; 4.1-annular groove; 5-a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.