阅读说明：本技术 一种超越离合器 (Overrunning clutch ) 是由 郭勇 刘亮亮 李国强 赵如愿 张赛赛 于 2021-09-15 设计创作，主要内容包括：本发明属于工程技术领域,公开了一种超越离合器,其包括外接触轮、内接触轮、滚动件、第一吸振器以及第二吸振器,外接触轮的内周面或者内接触轮的外周面开设有楔形槽,滚动件设置在楔形槽内,且设置在内接触轮和外接触轮之间,在外接触轮上设置有第一吸振器,在内接触轮上设置有第二吸振器。本发明提供的超越离合器,在外接触轮上设置第一吸振器,减小外接触轮的振动,在内接触轮上设置第二吸振器,减小内接触轮的振动,从而达到减振和降噪的效果。本发明提供的超越离合器不对超越离合器原本结构进行大量改变,就能达到减振和降噪的效果,适用于实际生产和实际应用。(The invention belongs to the technical field of engineering, and discloses an overrunning clutch which comprises an outer contact wheel, an inner contact wheel, a rolling piece, a first vibration absorber and a second vibration absorber. According to the overrunning clutch provided by the invention, the first vibration absorber is arranged on the outer contact wheel to reduce the vibration of the outer contact wheel, and the second vibration absorber is arranged on the inner contact wheel to reduce the vibration of the inner contact wheel, so that the effects of vibration reduction and noise reduction are achieved. The overrunning clutch provided by the invention can achieve the effects of vibration reduction and noise reduction without greatly changing the original structure of the overrunning clutch, and is suitable for actual production and actual application.)

1. The overrunning clutch is characterized by comprising an outer contact wheel (1), an inner contact wheel (2), a rolling piece (3), a first vibration absorber (4) and a second vibration absorber (5), wherein a wedge-shaped groove is formed in the inner circumferential surface of the outer contact wheel (1) or the outer circumferential surface of the inner contact wheel (2), the rolling piece (3) is arranged in the wedge-shaped groove and is arranged between the outer contact wheel (1) and the inner contact wheel (2), the first vibration absorber (4) is arranged on the outer contact wheel (1), and the second vibration absorber (5) is arranged on the inner contact wheel (2).

2. The overrunning clutch according to claim 1, wherein a plurality of first vibration absorbers (4) are disposed on the outer contact wheel (1), a plurality of first accommodating grooves (11) are correspondingly formed in the outer contact wheel (1), and the first vibration absorbers (4) are respectively disposed in the first accommodating grooves (11) in a one-to-one correspondence manner.

3. Overrunning clutch according to claim 2, characterized in that the first receiving grooves (11) are evenly distributed along the circumference of the outer contact wheel (1).

4. The overrunning clutch according to claim 2, wherein the outer contact wheel (1) has a plurality of first receiving grooves (11) formed therein along a direction parallel to a tangent of an outer peripheral surface of the outer contact wheel (1).

5. The overrunning clutch according to claim 1, wherein a plurality of second vibration absorbers (5) are disposed on the inner contact wheel (2), a plurality of second receiving grooves (21) are correspondingly formed on the inner contact wheel (2), and the second vibration absorbers (5) are respectively disposed in the second receiving grooves (21) in a one-to-one correspondence.

6. The overrunning clutch according to claim 5, wherein the inner contact wheel (2) is provided with a plurality of second receiving grooves (21) along a direction parallel to a tangent of an outer circumferential surface of the inner contact wheel (2).

7. The overrunning clutch according to claim 6, wherein a third vibration absorber (6) is further disposed on the inner contact wheel (2), a third receiving groove (22) is formed in the inner contact wheel (2) along a direction perpendicular to a tangent of an outer peripheral surface of the inner contact wheel (2), one third receiving groove (22) is sandwiched between the two second receiving grooves (21), and the third vibration absorbers (6) are correspondingly disposed in the third receiving grooves (22) one by one.

8. Overrunning clutch according to claim 1, characterized in that said first absorber (4) comprises:

a housing (41);

a crash plate assembly (42), wherein the crash plate assembly (42) is arranged inside the shell (41) and connected to the inner wall of the shell (41), and the crash plate assembly (42) and the shell (41) are enclosed to form a containing cavity;

a mass (43), the mass (43) being disposed within the receiving cavity, the mass (43) being abuttable against the crash panel assembly (42).

9. Overrunning clutch according to claim 8, characterized in that the first absorber (4) further comprises a reset element connected to the mass (43) and to an inner wall of the housing (41), for resetting the mass (43).

10. Overrunning clutch according to claim 8, characterized in that the first absorber (4) further comprises an anti-wear member arranged inside the housing (41) for reducing wear of the mass (43) or the collision plate assembly (42).

Technical Field

The invention relates to the technical field of engineering, in particular to an overrunning clutch.

Background

The overrunning clutch is an important part for power transmission and separation functions between a prime mover and a working machine or between a driving shaft and a driven shaft inside the machine. The rolling part type overrunning clutch comprises an outer contact wheel, an inner contact wheel and a rolling part arranged between the outer contact wheel and the inner contact wheel, when the inner contact wheel rotates anticlockwise, the rolling part is wedged to drive the outer contact wheel to rotate, and the overrunning clutch is engaged; when the inner contact wheel rotates clockwise, the rolling part retreats into the wedge-shaped groove part, the outer contact wheel does not move, and the overrunning clutch is separated. The inner contact wheel is sleeved on the main shaft, the main shaft provides certain impact force to the overrunning clutch, and the overrunning clutch is easy to vibrate. When the inner contact wheel rotates clockwise, the rolling part is in a free state, and certain noise can be generated due to shaking of the rolling part.

Disclosure of Invention

The invention aims to provide an overrunning clutch, which reduces vibration and noise of the overrunning clutch.

In order to achieve the purpose, the invention adopts the following technical scheme:

an overrunning clutch comprises an outer contact wheel, an inner contact wheel, a rolling element, a first vibration absorber and a second vibration absorber, wherein a wedge-shaped groove is formed in the inner circumferential surface of the outer contact wheel or the outer circumferential surface of the inner contact wheel, the rolling element is arranged in the wedge-shaped groove and is arranged between the outer contact wheel and the inner contact wheel, the first vibration absorber is arranged on the outer contact wheel, and the second vibration absorber is arranged on the inner contact wheel.

Preferably, the outer contact wheel is provided with a plurality of first vibration absorbers, the outer contact wheel is correspondingly provided with a plurality of first accommodating grooves, and the first vibration absorbers are correspondingly arranged in the first accommodating grooves in a one-to-one correspondence manner.

Preferably, the first receiving grooves are uniformly distributed in a circumferential direction of the outer contact wheel.

Preferably, the outer contact wheel is provided with a plurality of first accommodating grooves along a direction parallel to a tangent of an outer peripheral surface of the outer contact wheel.

Preferably, the inner contact wheel is provided with a plurality of second vibration absorbers, the inner contact wheel is correspondingly provided with a plurality of second accommodating grooves, and the second vibration absorbers are respectively arranged in the second accommodating grooves in a one-to-one correspondence manner.

Preferably, the inner contact wheel has a plurality of second receiving grooves formed along a direction parallel to an outer circumferential surface of a tangent line of the inner contact wheel.

Preferably, the inner contact wheel is further provided with a third vibration absorber, the inner contact wheel is provided with a third accommodating groove along a direction perpendicular to a tangent line of the outer peripheral surface of the inner contact wheel, the third accommodating groove is clamped between the two second accommodating grooves, and the third vibration absorbers are arranged in the third accommodating grooves in a one-to-one correspondence manner.

Preferably, the first absorber includes:

a housing;

the collision plate assembly is arranged inside the shell and connected to the inner wall of the shell, and the collision plate assembly and the shell are enclosed to form an accommodating cavity;

the mass block is arranged in the accommodating cavity and can abut against the collision plate component.

Preferably, the first vibration absorber further comprises a reset member, the reset member is connected to the mass and the inner wall of the housing, and the reset member is used for resetting the mass.

Preferably, the first absorber further comprises an anti-wear member disposed within the interior of the housing for reducing wear of the mass or the crash plate assembly.

The invention has the beneficial effects that:

according to the overrunning clutch provided by the invention, the first vibration absorber is arranged on the outer contact wheel to reduce the vibration of the outer contact wheel, and the second vibration absorber is arranged on the inner contact wheel to reduce the vibration of the inner contact wheel, so that the effects of vibration reduction and noise reduction are achieved. The overrunning clutch provided by the invention can achieve the effects of vibration reduction and noise reduction without greatly changing the original structure of the overrunning clutch, and is suitable for actual production and actual application.

Drawings

FIG. 1 is a schematic diagram of the construction of the outer contact wheel, inner contact wheel and rolling elements provided by an embodiment of the overrunning clutch of the present invention;

FIG. 2 is a schematic structural diagram of an outer contact wheel provided in an embodiment of the overrunning clutch of the present invention;

FIG. 3 is a schematic diagram of the construction of an inner contact wheel provided by an embodiment of the overrunning clutch of the present invention;

fig. 4 is a schematic structural diagram of a first absorber according to an embodiment of the present invention.

In the figure:

1. an outer contact wheel; 11. a first accommodating groove;

2. an inner contact wheel; 21. a second accommodating groove; 22. a third accommodating groove;

3. a rolling member;

4. a first vibration absorber; 41. a housing; 42. a crash panel assembly; 43. a mass block; 44. a first return spring; 45. a second return spring;

5. a second vibration absorber;

6. and a third vibration absorber.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the embodiments of the present invention, the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The existing rolling element type overrunning clutch comprises an outer contact wheel, an inner contact wheel and a rolling element arranged between the outer contact wheel and the inner contact wheel, when the inner contact wheel rotates anticlockwise, the rolling element is wedged to drive the outer contact wheel to rotate, and the overrunning clutch is engaged; when the inner contact wheel rotates clockwise, the rolling part retreats into the wedge-shaped groove part, the outer contact wheel does not move, and the overrunning clutch is separated. The inner contact wheel is sleeved on the main shaft, the main shaft provides certain impact force to the overrunning clutch, and the overrunning clutch is easy to vibrate. When the inner contact wheel rotates clockwise, the rolling part is in a free state, and certain noise can be generated due to shaking of the rolling part. The prior art reaches the damping effect through the structure that changes the rolling member, but this damping effect is not good, and the structure that changes back rolling member moreover is complicated, and the structure of outer contact wheel and interior contact wheel all needs to change correspondingly, and work is complicated, has increased the processing cost moreover.

In order to reduce the vibration and noise of the overrunning clutch, the present embodiment provides an overrunning clutch, as shown in fig. 1 to 4, the overrunning clutch includes an outer contact wheel 1, an inner contact wheel 2, a rolling member 3, a first vibration absorber 4, and a second vibration absorber 5, a wedge-shaped groove is formed in an inner circumferential surface of the outer contact wheel 1 or an outer circumferential surface of the inner contact wheel 2, the rolling member 3 is disposed in the wedge-shaped groove and is to be disposed between the outer contact wheel 1 and the inner contact wheel 2, the first vibration absorber 4 is disposed on the outer contact wheel 1, and the second vibration absorber 5 is disposed on the inner contact wheel 2.

The overrunning clutch provided by the embodiment is characterized in that the first vibration absorber 4 is arranged on the outer contact wheel 1, the vibration of the outer contact wheel 1 is reduced, the second vibration absorber 5 is arranged on the inner contact wheel 2, the vibration of the inner contact wheel 2 is reduced, and therefore the effects of vibration reduction and noise reduction are achieved. The overrunning clutch provided by the embodiment does not greatly change the original structure of the overrunning clutch, can achieve the effects of vibration reduction and noise reduction, and is suitable for actual production and actual application.

Specifically, as shown in fig. 1 and 2, a plurality of first absorbers 4 are disposed on the outer contact wheel 1, a plurality of first receiving grooves 11 are formed in the outer contact wheel 1 corresponding to the plurality of first absorbers 4, and the first absorbers 4 are respectively disposed in the first receiving grooves 11 in a one-to-one correspondence manner. More specifically, a plurality of first accommodation grooves 11 are uniformly distributed along the circumferential direction of the outer contact wheel 1, so that the first vibration absorbers 4 disposed in the first accommodation grooves 11 are uniformly distributed along the circumferential direction of the outer contact wheel 1, the first vibration absorbers 4 are uniformly distributed along the circumferential direction, and the vibration damping effect is better. In the present exemplary embodiment, four first absorbers 4 are arranged on the outer contact wheel 1.

Specifically, as shown in fig. 2, a plurality of first receiving grooves 11 are opened in the direction parallel to the tangent of the outer peripheral surface of the outer contact wheel 1 in the outer contact wheel 1, so that the first vibration absorber 4 disposed in the first receiving groove 11 is disposed in the direction parallel to the tangent of the outer peripheral surface of the outer contact wheel 1, thereby reducing the torque transmitted from the external acting force to the outer contact wheel 1 and achieving the vibration reduction effect.

Specifically, as shown in fig. 1 and 3, a plurality of second vibration absorbers 5 are disposed on the inner contact wheel 2, a plurality of second accommodating grooves 21 are formed in the inner contact wheel 2 corresponding to the plurality of second vibration absorbers 5, and the second vibration absorbers 5 are respectively disposed in the second accommodating grooves 21 in a one-to-one correspondence. More specifically, the plurality of second accommodation grooves 21 are uniformly distributed in the circumferential direction of the inner contact wheel 2 to achieve a more excellent vibration damping effect. In the present embodiment, four second vibration absorbers 5 are provided.

More specifically, as shown in fig. 3, a plurality of second receiving grooves 21 are opened in the inner contact wheel 2 in a direction parallel to the tangent of the outer circumferential surface of the inner contact wheel 2, and the second vibration absorbers 5 disposed in the second receiving grooves 21 are disposed in a direction parallel to the outer circumferential surface of the inner contact wheel 2, thereby reducing the torque transmitted to the inner contact wheel 2 by the external force and thus reducing the vibration of the inner contact wheel 2.

Further, as shown in fig. 1 and 3, a third vibration absorber 6 is further disposed on the inner contact wheel 2, a third accommodating groove 22 is formed in the inner contact wheel 2 in a direction perpendicular to a tangent of the outer circumferential surface of the inner contact wheel 2, and one third accommodating groove 22 is interposed between the two second accommodating grooves 21, and the third vibration absorbers 6 are respectively disposed in the third accommodating grooves 22 in a one-to-one correspondence, so that one third vibration absorber 6 is disposed between the two second vibration absorbers 5. The third containing groove 22 is formed in the inner contact wheel 2 along the direction perpendicular to the tangent of the outer peripheral surface of the inner contact wheel 2, so that the third vibration absorber 6 arranged in the third containing groove 22 is arranged along the direction perpendicular to the tangent of the outer peripheral surface of the inner contact wheel 2, the torque transmitted to the outer contact wheel 1 by external acting force is reduced, and a certain vibration reduction effect is achieved. And because the inner contact wheel 2 is sleeved on the main shaft, and the third vibration absorber 6 is arranged on the inner contact wheel 2, the bending deformation of the inner contact wheel 2 is reduced. In this embodiment, four third vibration absorbers 6 are provided, four third receiving grooves 22 are correspondingly provided, and the four third receiving grooves 22 are uniformly distributed along the circumferential direction of the inner contact wheel 2.

Further, as shown in fig. 4, the first absorber 4 includes a housing 41, a collision plate assembly 42, and a mass 43, the collision plate assembly 42 is disposed inside the housing 41 and connected to an inner wall of the housing 41, the collision plate assembly 42 and the housing 41 are enclosed as an accommodation chamber; a mass 43 is disposed within the receiving cavity, the mass 43 being capable of abutting the crash panel assembly 42. In the present embodiment, the collision plate assembly 42 includes four collision plates, two of which are connected to the upper inner wall of the housing 41, two of which are correspondingly connected to the lower inner wall of the housing 41, and the four collision plates and the housing 41 cooperate with each other to form a receiving cavity. The mass block 43 is arranged in the accommodating cavity, when the outer contact wheel 1 vibrates, the mass block 43 in the first vibration absorber 4 slides left and right, the mass block 43 impacts the collision plate to generate vibration in the opposite direction, and therefore the vibration of the outer contact wheel 1 is counteracted, and the vibration absorption effect is achieved.

Specifically, as shown in fig. 4, the first absorber 4 further includes a restoring member connected to the mass 43 and an inner wall of the housing 41, the restoring member serving to restore the mass 43. In this embodiment, the reset member includes a first reset spring 44 and a second reset spring 45, two ends of the first reset spring 44 are respectively connected to the first side wall of the mass 43 and the first inner side wall of the housing 41, two ends of the second reset spring 45 are respectively connected to the second side wall of the mass 43 and the second inner side wall of the housing 41, when the mass 43 slides leftward (leftward as shown in fig. 4), the first reset spring 44 is compressed, the second reset spring 45 is extended, and after the vibration is finished, the second reset spring 45 resets to pull the mass 43 to reset. When the mass 43 slides to the right (to the right as viewed in fig. 4), the first return spring 44 is reset to pull the mass 43 to be reset. More specifically, the first return spring 44 and the second return spring 45 employ butterfly-shaped nonlinear springs. It should be noted that the initial distance between the impact plate and the mass 43 is a key parameter for counteracting the vibration, and the initial distance is calculated according to the magnitude of the impact force applied to the outer contact wheel 1.

Specifically, the first absorber 4 further includes an abrasion prevention member disposed inside the housing 41 for reducing abrasion of the mass 43 or the impact plate assembly 42. In this embodiment, the wear-resistant member is made of lubricating oil, and the casing 41 is filled with the lubricating oil to play a role of buffering, so as to reduce the wear of the collision plate or the mass 43 caused by the collision. In other embodiments, a silicone pad may be disposed on the mass 43 or the bumper plate to reduce wear of the bumper plate and the mass 43.

Note that the second vibration absorber 5 and the third vibration absorber 6 have the same structure as the first vibration absorber 4, but the spring rate of the returning member in the second vibration absorber 5 or the third vibration absorber 6 is different from the spring rate of the returning member in the first vibration absorber 4. The rigidity of the spring is determined according to the impact force applied to the outer contact wheel 1 or the inner contact wheel 2.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.