CN210661118U

CN210661118U - One-way bearing

Info

Publication number: CN210661118U
Application number: CN201920995142.4U
Authority: CN
Inventors: 孙后成; 戴俊
Original assignee: Rolanx Bearing Nanjing Co ltd
Current assignee: Rolanx Bearing Nanjing Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-06-02
Anticipated expiration: 2029-06-28

Abstract

The utility model relates to an one-way bearing, including inner ring, holder and outer loop, be provided with the rolling member on the holder, the outer loop with connect through the buckle between the holder, be provided with the ball on the holder, the inner ring is double-deck sleeve structure, including inlayer sleeve and outer sleeve be provided with torsion spring between inlayer sleeve and the outer sleeve, the through-hole fixedly connected with voussoir of outer sleeve lateral wall is worn out to torsion spring first end steel wire, the voussoir is connected with the rolling member contact, voussoir one side is the arc curved surface, and one side is the plane, the arc curved surface with the rolling member contact. The bearing fully utilizes the torsion spring, the wedge-shaped block and the roller to realize the functions of one-way rolling and reverse locking.

Description

One-way bearing

Technical Field

The invention relates to a bearing, in particular to a one-way bearing.

Background

The one-way bearing is a bearing for realizing one-way rolling, when the outer ring is fixed, the inner ring can realize one-way rotation, and when the inner ring rotates in the opposite direction, the inner ring can be locked.

Disclosure of Invention

The invention provides a novel one-way bearing, aiming at solving the problems of complex structure and high precision requirement of parts of the one-way bearing in the prior art. The bearing fully utilizes the torsion spring, the wedge-shaped block and the roller to realize the functions of one-way rolling and reverse locking.

The technical scheme adopted by the invention is as follows: the utility model provides an one-way bearing, includes inner ring, holder and outer loop, be provided with the rolling member on the holder, the outer loop with connect through the buckle between the holder, be provided with the ball on the holder, the inner ring is double-deck sleeve structure, including inlayer sleeve and outer sleeve be provided with torsion spring between inlayer sleeve and the outer sleeve, the first end steel wire of torsion spring wears out the through-hole fixedly connected with voussoir of outer sleeve lateral wall, the voussoir is connected with the rolling member contact, voussoir one side is the arc curved surface, and one side is the plane, the arc curved surface with the rolling member contact.

Further, the inner sleeve is fixedly connected with the outer sleeve.

Further, the torsion spring second end steel wire is fixed on the inner ring.

Furthermore, the outer wall of the inner sleeve and the inner wall of the outer sleeve are both provided with anti-skidding mechanisms.

Furthermore, a plurality of through holes are formed in the outer-layer sleeve.

Further, the rolling members are rollers.

The beneficial effects produced by the invention comprise: the unidirectional bearing has a simple structure, and realizes unidirectional relative rolling of the inner ring and the outer ring by fully utilizing the torsion spring, the rolling piece and the double-layer inner ring.

Drawings

FIG. 1 is a schematic view of a one-way bearing according to the present invention;

in the figure, 1, an inner ring, 101, an inner sleeve, 102, an outer sleeve, 2, an outer ring, 3, a rolling element, 4, a torsion spring, 5, a first end part, 6, a wedge block, 601, an arc curved surface, 602, a plane, 7 and a retainer.

Detailed Description

The present invention is explained in further detail below with reference to the drawings and the detailed description, but it should be understood that the scope of the present invention is not limited by the detailed description.

As shown in fig. 1, the one-way bearing of the present invention comprises an inner ring 1, a retainer 7 and an outer ring 2, wherein rolling members 3 are arranged on the retainer 7, the outer ring 2 is connected with the retainer 7 through a snap, balls are arranged on the retainer 7, the inner ring 1 has a double-layer sleeve structure and comprises an inner sleeve 101 and an outer sleeve 102, a torsion spring 4 is arranged between the inner sleeve 101 and the outer sleeve 102, a steel wire at a first end 5 of the torsion spring 4 penetrates through a through hole in a side wall of the outer sleeve 102 to be fixedly connected with a wedge block, the wedge block is in contact connection with the rolling members 3, one side of the wedge block is an arc-shaped curved surface 601, and the other side of the wedge block is a flat surface 602, and the arc-shaped curved. When no external force is applied to the torsion spring 4, the torsion spring contacts the outer wall of the inner sleeve 101. Because one side of the wedge-shaped block 6 is an arc-shaped curved surface 601, when the inner ring 1 rotates anticlockwise, the arc-shaped curved surface 601 is contacted with the rolling element 3, when the rolling element 3 is contacted, the rolling element 3 is rolled smoothly, when the wedge-shaped block 6 is extruded by the rolling element 3, the radius of the torsion spring 4 is reduced due to the characteristic of the torsion spring 4, the torsion spring 4 is closely contacted with the inner sleeve 101 of the inner ring 1, the wedge-shaped block 6 retracts towards the center of the inner ring 1 and slides over the rolling element 3, and therefore the bearing can ensure the anticlockwise rotation of the inner ring 1 relative to the outer ring 2. When the inner ring 1 rotates clockwise, the flat surface 602 side contacts with the rolling member 3 and receives the resistance of the rolling member 3, the coil diameter of the torsion spring 4 is increased under the action of the resistance and contacts with the inner wall of the outer sleeve 102, the torsion spring 4 is tightly contacted with the outer sleeve 102 to generate frictional resistance, and the inner ring 1 is prevented from further rolling, namely, reverse locking is generated.

To ensure the integrity of the inner ring 1, the inner sleeve 101 is fixedly connected with the outer sleeve 102.

In order to ensure that the diameter of the coil of the torsion spring is increased or decreased when the torsion spring is stressed, the second end steel wire of the torsion spring is fixed on the inner ring 1, the first end part 5 is provided with a wedge block 6, and the wedge block 6 is arranged along the extending direction of the first end part 5.

The outer wall of the inner sleeve 101 and the inner wall of the outer sleeve 102 are both provided with anti-skidding mechanisms, the outer sleeve 102 is provided with a plurality of through holes, and the anti-skidding mechanisms are arranged to increase the friction force between the torsion spring 4 and the inner sleeve 101 or the outer sleeve 102.

The rolling elements 3 are rollers in the present invention. The torsion spring 4 can be provided with a plurality of torsion springs 4, the first end parts 5 of the torsion springs 4 extend to different directions and can be distributed in a radial shape, and the rolling parts 3 are balls, so that the first end parts 5 of the torsion springs 4 can be ensured to be contacted with the rolling parts 3.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the content of the embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and any changes and modifications made are within the protective scope of the present invention.

Claims

1. The utility model provides a one-way bearing, includes inner ring, holder and outer loop, be provided with rolling member on the holder, its characterized in that: the outer ring is connected with the retainer through a buckle, balls are arranged on the retainer, the inner ring is of a double-layer sleeve structure and comprises an inner-layer sleeve and an outer-layer sleeve, a torsion spring is arranged between the inner-layer sleeve and the outer-layer sleeve, a first end steel wire of the torsion spring penetrates out of a through hole of the side wall of the outer-layer sleeve to be fixedly connected with a wedge block, the wedge block is in contact connection with a rolling piece, one side of the wedge block is an arc-shaped curved surface, one side of the wedge block is a plane, and the arc-shaped curved surface.

2. The one-way bearing of claim 1, wherein: the inner layer sleeve is fixedly connected with the outer layer sleeve.

3. The one-way bearing of claim 1, wherein: and the torsion spring second end steel wire is fixed on the inner ring.

4. The one-way bearing of claim 1, wherein: the inner sleeve outer wall and the outer sleeve inner wall are both provided with anti-skidding mechanisms.

5. The one-way bearing of claim 1, wherein: the outer sleeve is provided with a plurality of through holes.

6. The one-way bearing of claim 1, wherein: the rolling members are rollers.