CN215334096U

CN215334096U - Adjusting arm clutch capable of controlling rotation angle in one way

Info

Publication number: CN215334096U
Application number: CN202121586740.XU
Authority: CN
Inventors: 李启群; 冯玉洁
Original assignee: Suzhou Renhe Laohekou Automobile Co ltd
Current assignee: Suzhou Renhe Laohekou Automobile Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-12-28
Anticipated expiration: 2031-07-13

Abstract

The utility model relates to the technical field of automobile adjusting arms, in particular to an adjusting arm clutch capable of controlling a rotating angle in a one-way mode.

Description

Adjusting arm clutch capable of controlling rotation angle in one way

Technical Field

Background

The automatic brake clearance adjusting arm can automatically and timely adjust the clearance increased by abrasion, so that the brake clearance is always kept in a design range. The angular travel of the adjusting arm, which occurs after the brake shoe contacts the brake drum due to the elastic deformation of the force-transmitting member, is not adjusted. The automatic adjusting arm generally comprises a shell, a transmission part, a one-way clutch, a control device, a worm pressing part and the like.

The one-way clutch in the prior art consists of a gear, a clutch spring and a clutch ring. In the braking process, the rack drives the gear to rotate clockwise, and the clutch spring has a radial contraction trend because the movement direction of the gear is the same as the rotation direction of the clutch spring, so that the friction force between the clutch ring, the inner surface of the gear and the rectangular surface of the spring is reduced, the gear can rotate relative to the clutch ring, and the abrasion generated by braking is recorded. The one-way clutch has the functions that when braking, the one-way clutch converts the linear motion of the rack into axial rotation, and the excessive clearance generated by the abrasion of the friction lining is accurately recorded. Secondly, when braking, the one-way clutch is separated and skidded; during the return stroke of the brake, the one-way clutch is combined, and the adjustment of the adjusting arm when the brake is about to be finished is ensured. The clutch in the prior art can not limit the unidirectional rotating angle, and the safety of the clutch can not be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjusting arm clutch for controlling a rotation angle in a one-way mode, which controls the maximum axial rotation angle of the clutch by setting the fan-shaped angle of a first arc gear and a second arc gear, limits the rotation direction by reversely meshing a first bevel gear and a second bevel gear, realizes the one-way limited rotation angle by automatically separating the first bevel gear and the second bevel gear during reversely rotating, improves the safety of the clutch and ensures the normal operation of an adjusting arm.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the clutch comprises a mandrel, a clutch gear, a clutch middle gear, a worm gear, an auxiliary worm, a nylon check ring and a clutch cover, wherein the clutch gear, the clutch middle gear, the worm gear, the auxiliary worm, the nylon check ring and the clutch cover are sequentially sleeved outside the mandrel; the clutch middle cone is provided with a first cone tooth, and the first cone tooth is reversely meshed with the second cone tooth of the worm cone.

Further, there are three first arc teeth, the sector angle of the first arc teeth is 55 °, and the sector angle of the second arc teeth is 50 °.

Furthermore, the upper end and the lower end of the torsion spring are respectively provided with a rotating arm which is respectively inconsistent with the first arc tooth and the second arc tooth.

Further, a spring is arranged between the clutch cover and the nylon retainer ring.

Further, the worm gear wheel is fixedly connected with the auxiliary worm.

Furthermore, the first arc teeth and the clutch gear are detachably fixed.

The utility model has the beneficial effects that: the utility model provides a one-way control rotation angle's regulating arm clutch, its fan-shaped angle size through setting for first arc meshing and second arc tooth, the biggest angle of control clutch axial rotation, through first awl tooth and the reverse meshing of second awl tooth, inject the direction of rotation, during reverse rotation, first awl tooth and second awl tooth autosegregation realize one-way limited rotation angle, have improved the security of clutch, ensure the normal work of regulating arm.

Drawings

Fig. 1 is a schematic structural diagram of an adjusting arm clutch for controlling a rotation angle in one way according to the present invention.

Fig. 2 is a schematic view of the structure of the clutch gear in fig. 1.

FIG. 3 is a schematic diagram of the cone structure of the clutch of FIG. 1.

Fig. 4 is a schematic view of the worm gear of fig. 1.

Fig. 5 is a schematic view of the first tooth of fig. 3.

Description of reference numerals:

1-mandrel, 2-clutch gear, 3-clutch middle gear, 4-worm gear, 5-auxiliary worm, 6-nylon retainer ring, 7-spring, 8-torsion spring, 21-first arc tooth, 22-tooth, 31-second arc tooth, 32-first cone tooth, 41-second cone tooth.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples, which are not intended to limit the scope of the utility model.

As shown in fig. 1, the adjusting arm clutch for controlling the rotation angle in one way of the embodiment includes a mandrel 1, a clutch gear 2, a clutch middle gear 3, a worm gear 4, an auxiliary worm 5, a nylon retainer ring 6 and a clutch cover, which are sequentially sleeved outside the mandrel 1, and a torsion spring 8 is arranged between the clutch gear 2 and the clutch middle gear 3; the clutch cover plate is arranged at the end part, and a spring is arranged between the clutch cover plate and the nylon retainer ring 6; as shown in fig. 2, the clutch gear 2 is provided with a plurality of first arc teeth 21 with adjustable angles, the first arc teeth 21 are of a fan-shaped structure, in this embodiment, the clutch gear 2 is uniformly provided with 3 first arc teeth 21, the fan-shaped angle of the first arc teeth 21 is 55 °, as shown in fig. 3, the cone 3 in the clutch is uniformly provided with three second arc teeth 31, the second arc teeth 31 are matched with the first arc teeth 21, the second arc teeth 31 are of a fan-shaped structure, and the fan-shaped angle of the second arc teeth 31 is 50 °, so that the first arc teeth 21 are matched with the second arc teeth 31, and the maximum angle of the axial rotation of the clutch is 15 °; as shown in fig. 5, the clutch middle cone 3 is provided with a first conical tooth 31, the first conical tooth 31 is matched with a second conical tooth 41 of the worm cone 4, and the second conical tooth 41 and the first conical tooth 31 are synchronously and reversely meshed.

Further, the sector angle of the first arc-shaped tooth 21 is 55 °, the sector angle of the second arc-shaped tooth 31 is 45 °, and the maximum angle of the axial rotation of the present invention is 20 °.

Further, the worm gear 4 and the auxiliary worm 4 are integrally formed.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an alignment arm clutch of one-way control rotation angle which characterized in that: the clutch comprises a mandrel, a clutch gear, a clutch middle gear, a worm gear, an auxiliary worm, a nylon retainer ring and a clutch cover, wherein the clutch gear, the clutch middle gear, the worm gear, the auxiliary worm, the nylon retainer ring and the clutch cover are sequentially sleeved outside the mandrel; the clutch middle cone is provided with a first cone tooth, and the first cone tooth is reversely meshed with the second cone tooth of the worm cone.

2. The tuning arm clutch for controlling a rotation angle in one direction according to claim 1, wherein: the number of the first arc teeth is three, the fan-shaped angle of the first arc teeth is 55 degrees, and the fan-shaped angle of the second arc teeth is 50 degrees.

3. The tuning arm clutch for controlling a rotation angle in one direction according to claim 1, wherein: and the upper end and the lower end of the torsion spring are respectively provided with a rotating arm which is respectively abutted against the first arc tooth and the second arc tooth.

4. The tuning arm clutch for controlling a rotation angle in one direction according to claim 1, wherein: and a spring is arranged between the clutch cover and the nylon retainer ring.

5. The tuning arm clutch for controlling a rotation angle in one direction according to claim 1, wherein: the worm gear wheel is fixedly connected with the auxiliary worm.

6. The tuning arm clutch for controlling a rotation angle in one direction according to claim 1, wherein: the first arc teeth and the clutch gear are detachably fixed.