CN215444828U

CN215444828U - Bidirectional clutch and clutch system

Info

Publication number: CN215444828U
Application number: CN202120710318.4U
Authority: CN
Inventors: 杜方瑞
Original assignee: Shanghai Chizhu Auto Parts Co ltd
Current assignee: Shanghai Chizhu Auto Parts Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2022-01-07
Anticipated expiration: 2031-04-08

Abstract

The utility model relates to the technical field of automobile accessories, in particular to a bidirectional clutch, which is used for overload clutch between a driving motor of an automobile electric stay bar and a screw rod, and comprises the following components: a sleeve, a rotor and a clutch assembly; the sleeve is connected with an external screw rod assembly; the rotor is arranged in the sleeve and connected with an external driving motor, a plurality of groove groups are arranged on the outer surface of the rotor, and an external contact surface is formed between every two adjacent groove groups; the clutch assembly is arranged in each groove group and used for realizing overload clutch between the rotor and the sleeve. The present invention also provides a clutch system comprising: the screw rod assembly, the driving motor and the bidirectional clutch. According to the utility model, the rotor and the sleeve are matched with each other, and the clutch assembly is utilized to realize transmission separation between the rotor and the sleeve when overload occurs, so that the gear of the reduction gearbox of the driving motor is prevented from being damaged.

Description

Bidirectional clutch and clutch system

Technical Field

The utility model relates to the technical field of automobile accessories, in particular to a bidirectional clutch and a clutch system.

Background

Automobile tail gate electric stay is common auto-parts, and common tail gate electric stay rotates through driving motor drive lead screw and realizes receiving and releasing the operation, all has the abuse operation of different degrees or the possibility of violence operation in electric stay at customer production line assembling process or later stage user use, leads to driving motor to transship, can cause the damage of the different degrees of reducing gear box planetary gear in the overload operation to influence the subsequent normal use of electric stay. In view of the above, we propose a two-way clutch and a clutch system.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a bi-directional clutch and a clutch system to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme:

a bidirectional clutch for overload clutch between a driving motor of an electric stay of an automobile and a lead screw, comprising: a sleeve, a rotor and a clutch assembly; the sleeve is connected with an external screw rod assembly; the rotor is arranged in the sleeve and connected with an external driving motor, a plurality of groove groups are arranged on the outer surface of the rotor, an external contact surface is formed between every two adjacent groove groups, and the external contact surface is attached to the inner wall of the sleeve; the clutch assembly is arranged in each groove group and used for realizing overload clutch between the rotor and the sleeve.

Preferably, the groove group comprises: the sliding device comprises a left sliding chute and a right sliding chute, wherein an inner contact surface is formed between the left sliding chute and the right sliding chute; the clutch assembly includes: a drive post and a spring; the transmission column is arranged on the inner contact surface, the springs are connected to two sides of the transmission column, and the springs provide elastic support.

Preferably, a circular arc transition surface is formed between the left sliding chute and the inner contact surface, and between the right sliding chute and the inner contact surface.

Preferably, two ends of a spring on the left side of the transmission column are respectively fixed on the left sliding chute and the left side surface of the transmission column; and two ends of a spring on the right side of the transmission column are respectively fixed on the right sliding groove and the right side surface of the transmission column.

Preferably, the bottom surface of the sleeve is provided with a clamping column; and the top surface of the rotor is provided with a gear column.

The present invention also provides a clutch system comprising: the screw rod assembly, the driving motor and the bidirectional clutch are arranged on the base;

the screw rod assembly is connected to a sleeve of the bidirectional clutch through a coupler;

the driving motor is connected to the rotor of the bidirectional clutch through a reduction gearbox.

Compared with the prior art, the utility model has the beneficial effects that: the rotor and the sleeve that set up mutually support to utilize clutch assembly to carry out the transmission, when transshipping takes place, clutch assembly can realize the transmission separation between rotor and the sleeve mutually, thereby avoids driving motor's reducing gear box gear to receive the damage, simple structure, practical convenient.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the first embodiment of the present invention;

FIG. 3 is a schematic view of an installation structure of a rotor and a clutch assembly according to an embodiment of the present invention;

fig. 4 is a front view of the overall structure of the second embodiment of the present invention.

In the figure: 1. a sleeve; 11. a clamping column; 2. a rotor; 21. a groove group; 211. a left chute; 212. a right chute; 213. an inner contact surface; 214. a circular arc transition surface; 22. an external contact surface; 23. a gear post; 3. a clutch assembly; 31. a drive post; 32. a spring; 4. a screw rod assembly; 41. a coupling; 5. a drive motor; 51. a reduction gearbox.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate. In the description of the present invention, "plurality" means two or more unless specifically limited otherwise.

Example one

A bi-directional clutch for an overload clutch between a driving motor and a lead screw of an electric stay of an automobile, as shown in fig. 1 to 3, comprising: the sleeve 1, the rotor 2 and the clutch component 3; wherein, the sleeve 1 is connected with an external screw rod assembly; rotor 2 sets up in sleeve 1 to connect outside driving motor, rotor 2's surface is provided with a plurality of banks of cells 21, forms external contact surface 22 between two adjacent banks of cells 21, and the laminating of the inner wall of external contact surface 22 and sleeve 1, and is concrete, and bank of cells 21 includes: the left sliding chute 211 and the right sliding chute 212, and an inner contact surface 213 is formed between the left sliding chute 211 and the right sliding chute 212; in this embodiment, each groove group 21 is provided with a clutch assembly 3, and the clutch assembly 3 is used for realizing overload clutch between the rotor 2 and the sleeve 1, and the clutch assembly 3 includes: drive post 31 and spring 32; wherein, the transmission post 31 is arranged on the inner contact surface 213, the two sides of the transmission post 31 are both connected with springs 32, and the springs 32 are used for providing elastic support for the transmission post 31. During the rotation of the rotor 2 by the drive motor, therefore, due to the outer contact surface 22 on the inner wall of the rotor 2, and the transmission column 31 on the clutch component 3 are both attached to the inner wall of the sleeve 1, the rotor 2 drives the sleeve 1 to rotate together when rotating, so that the screw rod assembly connected outside the sleeve 1 rotates, when the driving motor is overloaded, the rotor 2 is continuously pulled to rotate, and in the process that the rotor 2 rotates clockwise or anticlockwise, the transmission column 31 rolls into the left sliding groove 211 or the right sliding groove 212, and compresses the spring 32, at which time the friction between the driving stud 31 and the inner wall of the sleeve 1 is not enough to support the rotor 2 to pull the sleeve 1 to rotate together, the screw rod assembly stops working, the reduction gearbox gear of the driving motor is prevented from being damaged after the load is loaded, after the driving motor is closed and stops working, the spring 32 is resiliently restored and the drive rod 31 is pushed back against the inner contact surface 213, so that the overload clutch effect is achieved by the two-way clutch.

It should be noted that there is a circular arc transition surface 214 between the left sliding chute 211 and the inner contact surface 213, and between the right sliding chute 212 and the inner contact surface 213. The arc transition surface 214 enables the transmission column 31 to better move among the left sliding chute 211, the right sliding chute 212 and the inner contact surface 213, and when the transmission column moves into the left sliding chute 211 or the right sliding chute 212, the friction force between the rotor 2 and the inner wall of the sleeve 1 is reduced, so that the clutch effect between the rotor 2 and the sleeve 1 is realized.

Specifically, two ends of the spring 32 on the left side of the transmission column 31 are respectively fixed on the left sliding groove 211 and the left side surface of the transmission column 31; two ends of the spring 32 on the right side of the transmission column 31 are respectively fixed on the right chute 212 and the right side surface of the transmission column 31. The effect of utilizing spring 32 to play elastic support to transmission post 31 is convenient for, and transmission post 31 can be pushed up again on inside contact surface 213 through spring 32 when sliding into left spout 211 or right spout 212, and spring 32 is provided with 4 in this embodiment, arranges the both sides at spacing post 31 upper and lower both ends respectively.

It is worth to be noted that the bottom surface of the sleeve 1 is provided with a clamping column 11; the external screw rod assembly is conveniently connected by mutually matching the clamping column 11 and the coupler; the top surface of the rotor 2 is provided with a gear column 23, so that the gear column 23 and the reduction gearbox are conveniently meshed to connect with an external driving motor.

It can be seen from the above that, when the bidirectional clutch of this embodiment is used, in the process that the driving motor drives the rotor 2 to rotate, the rotor 2 drives the sleeve 1 to rotate together through the friction force between the outer contact surface 12, the inner contact surface 213 and the inner wall of the sleeve 1, so that the lead screw assembly connected outside the sleeve 1 rotates, when overload occurs, the driving motor continues to drive the rotor 2 to rotate clockwise or counterclockwise, the driving post 31 rolls into the left chute 211 or the right chute 212 and compresses the spring 32 on one side thereof, at this time, the friction force between the driving post 31 and the inner wall of the sleeve 1 is not enough to support the rotor 2 to drive the sleeve 1 to rotate together, so that the lead screw assembly stops working, thereby avoiding damaging the reduction gearbox gear of the driving motor, after the driving motor stops working, the elasticity of the spring 32 recovers, and the driving post 31 is pushed back to the inner contact surface 213 again, so as to realize the overload clutch effect through the bidirectional clutch, simple structure, convenient use and convenient popularization and promotion.

Example two

The second embodiment is a modification of the first embodiment, and is modified to provide a clutch system, as shown in fig. 4, including: the screw rod assembly 4, the driving motor 5 and the bidirectional clutch; wherein, the screw rod assembly 4 is connected to the sleeve 1 of the two-way clutch through a coupler 41; the driving motor 5 is connected to the rotor 2 of the bidirectional clutch through a reduction box 51; specifically, the coupler 41 is connected with the sleeve 1 through the clamping column 11; the reduction gearbox 51 is connected with the rotor 1 through the gear column 23, and the assembly is convenient.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bidirectional clutch for overload separation and reunion between driving motor and the lead screw of car electric stay bar which characterized in that includes: the clutch comprises a sleeve (1), a rotor (2) and a clutch component (3);

wherein, the sleeve (1) is connected with an external screw rod assembly;

the rotor (2) is arranged in the sleeve (1) and connected with an external driving motor, a plurality of groove groups (21) are arranged on the outer surface of the rotor (2), an external contact surface (22) is formed between every two adjacent groove groups (21), and the external contact surface (22) is attached to the inner wall of the sleeve (1);

the clutch component (3) is arranged in each groove group (21), and the clutch component (3) is used for realizing overload clutch between the rotor (2) and the sleeve (1).

2. The bi-directional clutch of claim 1, wherein: the groove group (21) includes: the sliding door comprises a left sliding chute (211) and a right sliding chute (212), wherein an inner contact surface (213) is formed between the left sliding chute (211) and the right sliding chute (212);

the clutch assembly (3) comprises: a drive post (31) and a spring (32); the transmission column (31) is arranged on the inner contact surface (213), the springs (32) are connected to two sides of the transmission column (31), and the springs (32) are used for providing elastic support for the transmission column (31).

3. The bi-directional clutch of claim 2, wherein: arc transition surfaces (214) are arranged between the left sliding chute (211) and the inner contact surface (213) and between the right sliding chute (212) and the inner contact surface (213).

4. The bi-directional clutch of claim 2, wherein: two ends of a spring (32) on the left side of the transmission column (31) are respectively fixed on the left sliding groove (211) and the left side surface of the transmission column (31);

two ends of a spring (32) on the right side of the transmission column (31) are respectively fixed on the right sliding groove (212) and the right side surface of the transmission column (31).

5. The bi-directional clutch of claim 1, wherein: the bottom surface of the sleeve (1) is provided with a clamping column (11);

and a gear column (23) is arranged on the top surface of the rotor (2).

6. A clutched system, comprising: -a screw assembly (4), a drive motor (5) and a bi-directional clutch according to any of claims 1-5;

the screw rod assembly (4) is connected to the sleeve (1) of the bidirectional clutch through a coupler;

the driving motor (5) is connected to the rotor (2) of the bidirectional clutch through a reduction gearbox.