CN116972082A - Mechanical one-way clutch mechanism and use method and application thereof - Google Patents

Abstract

A mechanical one-way clutch mechanism comprises a first rotating member, a second rotating member and an elastic element, wherein at least part of the second rotating member is inserted into the first rotating member, and the first rotating member and the second rotating member can rotate relatively; the elastic element is positioned between the second rotating member and the first rotating member, one end of the elastic element is connected to one of the two rotating members and exerts prestress on the other rotating member; when the two rotating members relatively rotate along the first direction, the prestress becomes large, and the elastic element is locked by the rotating members with the prestress applied; when the two rotating members rotate relatively along the second direction, the prestress becomes smaller, and the elastic element and the rotating member to which the prestress is applied rotationally slide, so that the two rotating members rotationally slide. Methods of using the mechanical one-way clutch mechanism and applications are also provided. The application can realize complete relative locking of a certain rotation direction and rotation torque transmission in a certain range, and simultaneously realize low-resistance relative rotation in opposite rotation directions.

Description

Mechanical one-way clutch mechanism and use method and application thereof

Technical Field

The application relates to the field of automobile accessories, in particular to a mechanical one-way clutch mechanism and a use method and application thereof.

Background

In the mechanism rotational motion, a rotational damper is usually installed in order to buffer the impact force. At present, the rotary dampers on the market act in two directions, and the dampers rotate along with the rotation in the forward and reverse directions to generate resistance. However, in many cases, the damping values in the two directions are different when rotating in the forward and reverse directions, or when rotating in a certain direction, not only the damping values are different in different stages, but also complete relative locking can be achieved.

Accordingly, those skilled in the art have been directed to developing a mechanical one-way clutch mechanism, and methods of use and application thereof, that is capable of achieving complete relative lockup of a certain rotational direction and rotational torque transfer over a range while achieving low resistance relative slip rotation in the opposite rotational direction.

Disclosure of Invention

In order to solve the technical problem, the application provides a mechanical one-way clutch mechanism, which comprises a first rotating member, a second rotating member and an elastic element, wherein at least part of the second rotating member is inserted into the first rotating member, and the first rotating member and the second rotating member are configured to be capable of rotating relatively; the elastic element is located between a portion of the second rotating member inserted into the first rotating member and the first rotating member; one end of the elastic element is connected to one of the first rotating member and the second rotating member, and the elastic element applies a prestress on the other of the first rotating member and the second rotating member; the mechanical one-way clutch mechanism is configured to: when the first rotating member and the second rotating member relatively rotate in a first direction, the prestress applied by the elastic element becomes large so that the elastic element is locked by the rotating member to which the prestress is applied; when the first rotating member and the second rotating member relatively rotate in the second direction, the prestress applied by the elastic element becomes small, so that the elastic element rotationally slides with the rotating member to which the prestress is applied, so that the first rotating member and the second rotating member rotationally slide.

Further, the elastic element includes a circular portion and a free end extending in a radial direction of the circular portion, the free end being connected to one of the first and second rotating members, the circular portion being in contact with the other of the first and second rotating members and exerting the prestress thereon, the circular portion being configured to change in diameter when subjected to an external force.

Further, the elastic element is formed by winding a band.

Further, the belt is wound to form the circular portion, and one end of the belt is bent in the radial direction of the circular portion to form the free end.

Further, the strip-shaped piece is wound for a plurality of times to form the circular portion, so that the side wall of the circular portion is multi-layered, and the strip-shaped piece is positioned at the outer surface or the inner surface of the circular portion, and is bent along the radial direction of the circular portion to form the free end.

Further, the strip is wound once to form the circular portion such that the side wall of the circular portion is single-layered or multi-layered.

Further, the belt end is bent along the radial direction of the circular portion to form the bent fixed end.

Further, the band is wound to form the circular portion such that the circular portion forms a closed circular shape, and the free end is formed to extend in the radial direction from a surface of the circular portion.

Further, the elastic element is wound from a wire.

Further, the end portion of the wire is bent in the radial direction of the circular portion to form the bent fixed end.

Further, the circular portion around which the wire is wound is a closed circular shape, and the free end is formed by extending from the circular portion in the radial direction.

Further, the free end protrudes outward in the radial direction of the circular portion, and the inner surface of the first rotating member is provided with a first groove/hole into which the free end is inserted; the circular portion is sleeved on the shaft portion of the second rotating member after being expanded in the radial direction so as to apply the prestress on the shaft portion.

Further, the elastic member is in a free state, and an inner diameter of the circular portion is smaller than an outer diameter of the shaft portion.

Further, the free end protrudes inward in the radial direction of the circular portion, the outer surface of the shaft portion of the second rotating member is provided with a second groove/hole, the circular portion is sleeved on the shaft portion, and the free end is inserted into the second groove/hole; the circular portion is radially compressed and then mounted within the first rotating member to exert the prestress on the first rotating member.

Further, the elastic element is in a free state, and an outer diameter of the circular portion is larger than an inner diameter of the first rotating member.

Further, the elastic member is made of stainless steel or carbon steel.

Further, the first rotary member has a cylindrical inner cavity, the second rotary member has a shaft portion, the cylindrical cavity is sleeved outside the shaft portion and overlaps at least part of the shaft portion, and the elastic element is located between the shaft portion and a side wall of the cylindrical cavity.

Further, the one-way clutch mechanism is configured to be assembled into a single module.

The application also provides a method for realizing one-way clutch by using the mechanical one-way clutch mechanism, which comprises the following steps:

inputting a torque in a first direction on one rotating member connected to an end of an elastic element of the one-way clutch mechanism, so that a stress applied by the elastic element to the other rotating member becomes large, thereby causing the elastic element to lock the other rotating member to achieve transmission of the torque between the two rotating members;

torque is input in a second direction on one rotating member connected to the end portion of the elastic element of the one-way clutch mechanism, so that a stress applied by the elastic element to the other rotating member becomes small, thereby enabling the elastic element to realize rotational sliding with the other rotating member to realize rotational sliding between the two rotating members.

The mechanical one-way clutch mechanism can be applied to the rotary damper to realize one-way clutch movement and forward and reverse variable damping movement.

Compared with the prior art, the mechanical one-way clutch mechanism provided by the application has the following technical effects:

1. by utilizing the mechanical characteristics of the elastic element, the mechanical unidirectional clutch effect between the inner shaft and the outer shaft is realized, namely, the complete relative locking between the inner shaft and the outer shaft and the rotation torque transmission within a certain range can be realized by a certain relative rotation direction, and meanwhile, the low-resistance relative sliding rotation is realized in the opposite relative rotation direction.

2. By utilizing the mechanical characteristics of the elastic element, the clutch response in timeliness is realized, namely, the mechanical separation of the torque transmission in a certain direction between the inner shaft and the outer shaft and the reverse direction can be realized immediately at the moment when the relative direction of rotation changes.

3. The application has simple and compact structure, can realize modularized production, can be quickly assembled into other systems when in use, and reduces the production cost.

The conception, specific structure, and technical effects of the present application will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present application.

Drawings

Fig. 1 is an assembly view of a one-way clutch mechanism 100 of embodiment 1;

FIG. 2 is an exploded schematic view of the one-way clutch mechanism 100 of embodiment 1;

FIG. 3 is a partially exploded schematic illustration of one-way clutch mechanism 100 of embodiment 1;

FIG. 4 is a schematic view of the one-way clutch mechanism 100 of embodiment 1 rotated in a first direction;

FIG. 5 is a partially exploded schematic view of FIG. 4;

fig. 6 is a schematic view of the one-way clutch mechanism 100 of embodiment 1 rotated in a second direction;

FIG. 7 is a partially exploded schematic view of FIG. 6;

fig. 8 is an exploded schematic view of the one-way clutch mechanism 100 of embodiment 2;

fig. 9 is a partially exploded schematic view of the one-way clutch mechanism 100 of embodiment 2;

FIG. 10 is an exploded view of the one-way clutch mechanism 100 of embodiment 2 rotated in a first direction;

fig. 11 is an exploded view of the one-way clutch mechanism 100 of embodiment 2 rotated in the second direction;

fig. 12 is a schematic structural view of an elastic member in embodiment 3;

fig. 13 is a schematic structural view of an elastic member in embodiment 4;

fig. 14 is a schematic structural view of an elastic member in embodiment 4;

fig. 15 is a schematic structural view of an elastic member in embodiment 5.

Wherein 100-one-way clutch mechanism 100, 10-first rotating member 10, 11-cavity, 12-first groove 12, 20-second rotating member 20, 21-shaft portion 21, 22-second groove 22, 30-first band spring 30, 31-first circular portion, 32-first free end;

40-second band springs 40, 41-second rounded portions 42-second free ends;

50-third band springs 50, 51-third rounded portion, 52-third free end, 53-first opening;

60-filiform spring 60, 61-fourth rounded portion, 62-fourth free end, 63-second opening;

70-second elastic element, 71-fifth rounded portion, 72-fifth free end.

Detailed Description

The following description of the preferred embodiments of the present application refers to the accompanying drawings, which make the technical contents thereof more clear and easy to understand. The present application may be embodied in many different forms of embodiments and the scope of the present application is not limited to only the embodiments described herein.

In the drawings, like structural elements are referred to by like reference numerals and like structural or functional elements are referred to by like reference numerals throughout. The dimensions and thicknesses of each of the components shown in the drawings are arbitrarily shown, and the present application is not limited to the dimensions and thicknesses of each of the components. The thickness of the components is exaggerated in some places in the drawings for clarity of illustration.

The mechanical one-way clutch mechanism 100 provided by the application comprises a first rotary member 10, a second rotary member 20 and an elastic element. The first rotary member 10 is fitted around the circumferential outer surface of the second rotary member 20, and covers part or all of the circumferential outer surface of the second rotary member 20. An elastic element is provided between the first rotary member 10 and the second rotary member 20, one end of the elastic element being connected to either one of the first rotary member 10 and the second rotary member 20, while the elastic element exerts a prestress on the other rotary member in an installation completed state (initial state). One of the first rotary member 10 and the second rotary member 20, which is connected to the end of the elastic element, may be rotated by an external force as a power input part and the other as an output part of the clutch mechanism 100. When the two rotating members rotate relatively, the rotating directions are different, and the prestress applied by the elastic element is different. When the relative rotation direction of the two rotation members is the first direction, the prestress becomes large; in the second direction, the prestress becomes smaller. The first direction may be one of a clockwise direction or a counter-clockwise direction, and the second direction is a direction opposite to the first direction.

When an external force is input to the rotating member as the power input means to rotate the rotating member in the first direction relative to the other rotating member, the force acting on the elastic element by the power input means increases the stress exerted on the other rotating mechanism by the elastic element, thereby locking the other rotating member, realizing a locked state between the other rotating member and the elastic element, and enabling the two rotating members to transmit rotational torque within a certain range in this state. When the power input part rotates towards the second direction relative to the other rotating component, the force of the power input part acting on the elastic element can reduce the prestress of the elastic element acting on the other rotating component, and in this state, one rotary sliding between the elastic element and the other rotating component can be realized immediately, so that the two rotating components generate corresponding rotary sliding.

The working principle of the present application is explained in detail by a plurality of embodiments.

Example 1

Example 1 is shown in fig. 1-7. Referring to fig. 1, 2 and 3, the first rotary member 10 has a cylindrical cavity 11, and the second rotary member 20 has a shaft portion 21, at least part of the shaft portion 21 of which is disposed within the cavity 11 of the first rotary member 10. The elastic element is provided between the side wall of the cavity 11 of the first rotary member 10 and the portion of the shaft portion 21 located within the cavity 11. The elastic element may be a first strip spring 30, where the first strip spring 30 is a circular component formed by winding or bending a strip. Specifically, the first strap spring 30 includes a first circular portion 31, one end of the strap being located on an inner surface of the first circular portion 31, and the other end being located on an outer surface of the first circular portion 31. The side wall of the first circular portion 31 may be formed in one or more layers, and the specific number of layers is not limited to the present application, and a multi-layer structure is selected in this embodiment, that is, the strip member is wound multiple times, so that the side wall of the first circular portion 31 is multi-layered. The first circular portion 31 forms a spiral line in a radial cross section, and the direction of the spiral line is the winding direction. The first circular portion 31 is hollow in the middle and can be fitted over the shaft portion 21 of the second rotary member 20. One end of the band is bent to form a free end, and an end located inside the first circular portion 31 may be selected as the free end, or an end located outside the first circular portion 31 may be selected as the free end. In the present embodiment, an end portion located on the outer surface of the first rounded portion 31 is defined as the first free end 32. The side wall of the cavity of the first rotary member 10 has a first slot 12 which mates with a first free end 32, the first free end 32 being insertable into the first slot 12; the first groove 12 may be provided along the axial direction of the cavity 11 of the first rotary member 10, and may extend through the first rotary member 10 in the axial direction, or may extend through only a part of the side wall of the cavity 11 of the first rotary member 10. The circular portion 31 of the first band spring 30 is fitted and wrapped to the shaft portion 21 of the second rotary member 20 after being expanded in the radial direction, and when the first band spring 30 is fitted to the shaft portion 21 (i.e., in a fitted state, which may also be referred to as an initial state), the first band spring 30 is tightly wrapped on the shaft portion 21 by its own internal stress, i.e., a prestressing force is applied to the shaft portion 21, at this time, the tension of the first band spring 30 uniformly acts on the outer surface of the shaft portion 21 in the axial direction.

The first strap spring 30 may be made of a metal material, preferably steel. It will be appreciated that other suitable materials may be used depending on the application. The material of the first strap spring 30 does not constitute a limitation of the present application.

As shown in fig. 4 and 5, at the moment when the first rotary member 10 rotates relative to the second rotary member 20 along the spiral direction of the first belt spring 30, the force acting on the first free end 32 of the first belt spring 30 causes the first belt spring 30 to generate a tensioning force in the radial direction, that is, the prestress of the first belt spring 30 applied to the shaft portion 21 of the second rotary member 20 becomes large, so that the first belt spring 30 completely locks the shaft portion 21, in which a locked state between the shaft portion 21 of the second rotary member 20 and the belt spring can be immediately achieved, so that the corresponding first rotary member 10 and the second rotary member 20 achieve transmission of rotational torque within a certain range in this state.

As shown in fig. 6 and 7, when the first rotary member 10 rotates relative to the second rotary member 20 in the direction opposite to the spiral line direction of the first belt spring 30, the force acting on the first free end 32 of the first belt spring 30 will cause the first belt spring 30 to loosen in the spiral line direction thereof, so that the tension force of the first belt spring 30 originally in the axial direction will be instantaneously reduced, i.e. the prestress applied to the shaft portion 21 of the second rotary member 20 will be reduced, and in this state, a rotary sliding between the second rotary member 20 and the first belt spring 30 will be immediately realized, so that the corresponding first rotary member 10 and the second rotary member 20 will correspondingly rotate and slide.

Example 2

Example 2 is shown in fig. 8-11. Referring to fig. 8 and 9, the first rotary member 10 and the second rotary member 20 of the present embodiment are substantially identical in structure to embodiment 1. The elastic member is still a ribbon spring (i.e., the second ribbon spring 40), and the overall structure is the same as that of the first ribbon spring 30 of embodiment 1, except that the free end of the second ribbon spring 40 of this embodiment is located on the inner surface of the second circular portion 41. A second groove 22 is provided along the length direction of the second rotary member 20 on the outer surface of the shaft portion 21, and a second free end 42 of the second band spring 40 is inserted into the second groove 22. Meanwhile, the diameter of the cavity 11 of the first rotary member 10 is smaller than the outer diameter of the second band spring 40 in a free state, the second round portion 41 of the second band spring 40 is pre-compressed and installed in the cavity of the first rotary member 10 such that the second band spring 40 is in a compressed state in the cavity, and at this time, the tension generated by the second band spring 40 under the effect of its own internal stress uniformly acts on the surface of the cavity of the first rotary member 10, i.e., the second band spring 40 applies a pre-stress to the inner surface of the first rotary member 10 in an initial state.

As shown in fig. 10, when the second rotary member 20 rotates relative to the first rotary member 10 along the spiral direction of the second belt spring 40, the force acting on the free end of the second belt spring 40 will cause the second belt spring 40 to loosen in the radial direction, so that the tension between the second belt spring 40 and the first rotary member 10 in the outward direction is instantaneously reduced, that is, the prestress applied to the first rotary member 10 is reduced, in this state, a rotary sliding between the first rotary member 10 and the second belt spring 40 can be instantly realized, and the corresponding first rotary member 10 and the second rotary member 20 generate corresponding rotary sliding.

As shown in fig. 11, when the second rotary member 20 rotates relative to the first rotary member 10 in a direction opposite to the spiral line direction of the second belt spring 40, the force acting on the free end of the second belt spring 40 causes the second belt spring 40 to generate a radially outward tension force, that is, the prestress applied to the first rotary member 10 becomes large, thereby completely locking the inner side of the first rotary member 10, in which a relatively locked state between the first rotary member 10 and the second belt spring 40 can be immediately achieved, so that the transmission of the rotational torque between the first rotary member 10 and the second rotary member 20 can be achieved in this state.

Example 3

Example 3 is shown in fig. 12. This embodiment differs from embodiments 1 and 2 in the structure of the elastic member. As shown in the figure, the third band spring 50 of the present embodiment is formed by winding a band once to form a non-closed circular member, that is, a third circular member 51, and the third circular member 51 has an opening 53. One side wall of the opening 53 is then bent radially to form a third free end 53, which may be bent radially inward or outward. The third strip spring 50 thus formed has a one-layer structure on the side wall of the third round portion 51. When the inward bending is selected, the third belt spring 50 may be selected as in embodiment 2, the third free end 52 of the third belt spring 50 may be connected to the shaft portion 21 of the second rotary member 20 (i.e., a groove that mates with the free end may be provided in the shaft portion 21), and the third belt spring 50 may be installed in the cavity of the first rotary member 10 after being compressed in the radial direction, with the same principle of operation as in embodiment 2.

When the outward bending is selected, the third band spring 50 may be selected as in embodiment 1, the third free end 52 of the third band spring 50 may be coupled to the inner surface of the first rotary member 10 (i.e., a groove is provided on the inner surface to be fitted with the free end), and the third band spring 50 may be radially expanded and then mounted on the shaft portion 21 of the second rotary member 20, which has the same principle of operation as in embodiment 1.

Example 4

Example 4 is shown in fig. 13 and 14. This embodiment differs from embodiment 3 in that embodiment 3 is made from a ribbon, and this embodiment is made from a wire, referred to as a wire spring 60. Specifically, as shown in fig. 13, the wire is wound to form a non-closed circular member, that is, the fourth circular portion 61 has an opening 63. One side of the opening 63 is then bent radially to form a fourth free end 62, which may be bent radially inward or outward. When the inward bending is selected, the wire spring 60 may be selected as in embodiment 2, the fourth free end 62 of the wire spring 60 may be connected to the shaft portion 21 of the second rotary member 20 (the fourth free end 62 is inserted into the hole of the shaft portion 21), and the wire spring 60 may be installed in the cavity of the first rotary member 10 after being compressed in the radial direction, and the principle of the operation thereof may be the same as in embodiment 2.

As shown in fig. 14, when the outward bending is selected, the wire spring 60 may be selected as in embodiment 1, the fourth free end 62 of the wire spring 60 may be coupled to the inner surface of the first rotary member 10 (the fourth free end 62 is inserted into the hole of the inner surface), and the wire spring 60 may be radially expanded and then mounted on the shaft portion 21 of the second rotary member 20, which has the same principle of operation as in embodiment 1.

The material of the filars is preferably steel.

Example 5

Example 5 is shown in fig. 15. This embodiment differs from embodiments 3 and 4 in that the second elastic member 70 of this embodiment has a fifth circular portion 71 formed in a closed circular shape. A fifth free end 72 is formed to protrude radially outwardly at an outer surface of the circular portion 71 to be coupled with an inner surface of the first rotary member 10; or a fifth free end 72 is formed to protrude radially inward at an inner surface of the circular portion to be coupled with an outer surface of the shaft portion 21 of the second rotary member 20. In the present embodiment, the circular portion 71 has elasticity, and when an external force is applied thereto, the diameter in the radial direction changes, so that it is possible to apply a prestress to the first rotary member 10 or the second rotary member 20. The principle of action when the elastic element of this embodiment is mounted on the rotating member is the same as that of embodiment 1 or 2.

The second elastic element 70 may be made of a strip or a wire.

The elastic element described in the above 5 embodiments, which is connected to one rotary member and applies a prestress on the other rotary member, may be increased or decreased according to the rotation direction of the two rotary members with respect to each other. The elastic elements of the above 5 embodiments each include a circular portion, and when the elastic element is subjected to an external force, the radial dimension of the circular portion thereof changes (becomes larger or smaller), so that the prestress applied by the circular portion changes. It will be appreciated that other configurations of resilient elements are possible with the present application, the resilient element being capable of providing a pre-stress on one of the rotating members, the pre-stress being capable of varying as the resilient element is subjected to an external force such that the resilient element is capable of locking or sliding relative to the rotating member.

As shown in fig. 1, the mechanical one-way clutch mechanism 100 described above may be assembled as a single module that, in use, need only be connected to other mechanisms.

The application utilizes the mechanical characteristics of the elastic element to realize the unidirectional clutch effect between two sleeved rotating components, namely, one relative rotation direction can realize complete relative locking between the two rotating components and rotation torque transmission in a certain range, and simultaneously realize low-resistance relative sliding rotation in opposite relative rotation directions; at the same time, a timely clutch response can be achieved, i.e. a mechanical decoupling of torque transmission in a certain direction between the two rotating members from the reverse direction can be achieved immediately at the moment when the relative direction of rotation changes.

The mechanical unidirectional clutch mechanism 100 of the application can be applied to a rotary damper, one rotary component in the unidirectional clutch mechanism 100 is connected with a torque input part of the rotary damper, and the other rotary component is connected with an output part, so that the forward and reverse variable damping value of the rotary damper and unidirectional clutch movement can be realized.

The foregoing describes in detail preferred embodiments of the present application. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the application without requiring creative effort by one of ordinary skill in the art. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (20)

1. A mechanical one-way clutch mechanism comprising a first rotating member, a second rotating member and an elastic element, wherein at least a portion of the second rotating member is inserted into the first rotating member, and the first rotating member and the second rotating member are configured to be relatively rotatable; the elastic element is located between a portion of the second rotating member inserted into the first rotating member and the first rotating member; one end of the elastic element is connected to one of the first rotating member and the second rotating member, and the elastic element applies a prestress on the other of the first rotating member and the second rotating member; the mechanical one-way clutch mechanism is configured to: when the first rotating member and the second rotating member relatively rotate in a first direction, the prestress applied by the elastic element becomes large so that the elastic element is locked by the rotating member to which the prestress is applied; when the first rotating member and the second rotating member relatively rotate in the second direction, the prestress applied by the elastic element becomes small, so that the elastic element rotationally slides with the rotating member to which the prestress is applied, so that the first rotating member and the second rotating member rotationally slide.

2. The one-way clutch mechanism of claim 1, wherein the elastic element includes a circular portion and a free end, the free end extending in a radial direction of the circular portion, the free end being connected to one of the first and second rotating members, the circular portion being in contact with and exerting the prestress on the other of the first and second rotating members, the circular portion being configured to change in diameter when subjected to an external force.

3. The one-way clutch mechanism of claim 2, wherein the resilient member is formed by winding a ribbon.

4. A one-way clutch mechanism as set forth in claim 3 wherein said band is wound to form said circular portion and one end of said band is bent in said radial direction of said circular portion to form said free end.

5. The one-way clutch mechanism of claim 4, wherein the band is wound a plurality of times to form the circular portion such that a side wall of the circular portion is multi-layered, and an end portion of the band at an outer surface or an inner surface of the circular portion is bent in the radial direction of the circular portion to form the free end.

6. The one-way clutch mechanism of claim 4, wherein the band is wound once to form the circular portion such that a side wall of the circular portion is single-layered or multi-layered.

7. The one-way clutch mechanism of claim 6, wherein an end portion of the band is bent in the radial direction of the circular portion to form the free end.

8. A one-way clutch mechanism as set forth in claim 3 wherein said band is wound to form said circular portion such that said circular portion forms a closed circle, said free end extending in said radial direction from a surface of said circular portion.

9. The one-way clutch mechanism of claim 2, wherein the resilient member is wound from a wire.

10. The one-way clutch mechanism of claim 9, wherein an end of the wire is bent in the radial direction of the circular portion to form the free end.

11. The one-way clutch mechanism of claim 9, wherein the circular portion around which the wire is wound is a closed circle, and the free end is formed by extending the circular portion in the radial direction.

12. The one-way clutch mechanism according to any one of claims 2 to 11, wherein said free end protrudes outwardly in said radial direction of said circular portion, and an inner surface of said first rotary member is provided with a first groove/hole into which said free end is inserted; the circular portion is sleeved on the shaft portion of the second rotating member after being expanded in the radial direction so as to apply the prestress on the shaft portion.

13. The one-way clutch mechanism of claim 12, wherein the elastic member has an inner diameter of the circular portion smaller than an outer diameter of the shaft portion in a free state.

14. The one-way clutch mechanism according to any one of claims 2 to 11, wherein the free end protrudes inward in a radial direction of the circular portion, an outer surface of a shaft portion of the second rotating member is provided with a second groove/hole, the circular portion is fitted over the shaft portion and the free end is inserted into the second groove/hole; the circular portion is radially compressed and then mounted within the first rotating member to exert the prestress on the first rotating member.

15. The one-way clutch mechanism of claim 14, wherein the elastic element is in a free state, and an outer diameter of the circular portion is larger than an inner diameter of the first rotary member.

16. The one-way clutch mechanism according to any one of claims 1 to 11, wherein the elastic member is made of stainless steel or carbon steel.

17. The one-way clutch mechanism of claim 1, wherein the first rotary member has a cylindrical inner cavity and the second rotary member has a shaft portion, the cylindrical cavity is sleeved outside the shaft portion and overlaps at least a portion of the shaft portion, and the resilient element is located between the shaft portion and a side wall of the cylindrical cavity.

18. The one-way clutch mechanism of claim 1, wherein the one-way clutch mechanism is configured to be assembled as a single module.

19. A method of effecting one-way clutch using the mechanical one-way clutch mechanism of any one of claims 1-18, comprising:

inputting a torque in a first direction on one rotating member connected to an end of an elastic element of the one-way clutch mechanism, so that a stress applied by the elastic element to the other rotating member becomes large, thereby causing the elastic element to lock the other rotating member to achieve transmission of the torque between the two rotating members;

torque is input in a second direction on one rotating member connected to the end portion of the elastic element of the one-way clutch mechanism, so that a stress applied by the elastic element to the other rotating member becomes small, thereby enabling the elastic element to realize rotational sliding with the other rotating member to realize rotational sliding between the two rotating members.

20. Use of a mechanical one-way clutch according to any one of claims 1-18 in a rotary damper.