CN215950151U

CN215950151U - Swivel bearing for cable

Info

Publication number: CN215950151U
Application number: CN202122506802.8U
Authority: CN
Inventors: 侯利召; 林瑶庆; 耿进恒
Original assignee: Tiansheng Zhixiang Changzhou Robot Technology Co ltd
Current assignee: Tiansheng Zhixiang Changzhou Robot Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-03-04
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a rotary bearing for cables, which relates to the field of bearings and comprises a bearing outer ring, wherein a bearing inner ring is rotatably connected inside the bearing outer ring, a plurality of groups of balls are arranged between the bearing outer ring and the bearing inner ring, and a plurality of groups of cable rollers are rotatably connected on the inner wall of the bearing inner ring. According to the utility model, the cable is guided by the inner ring of the bearing, when the cable slides, the friction force is changed from sliding friction to rolling friction due to the combined action of the plurality of groups of cable rollers and the cable, so that the friction force generated on the cable during guiding is greatly reduced, and the defect that the cable is easily damaged due to larger friction force of a traditional guiding mechanism is avoided; according to the self-twisting cable guide mechanism, the bearing inner ring is rotationally connected with the bearing outer ring, so that when a cable is subjected to self-twisting, the torsion generated by the twisting of the cable is utilized to drive the cable roller, and further the bearing inner ring is driven to rotate, the torsion of the cable is released, and the defect that the traditional guide mechanism hinders the cable to recover from a twisting state due to large friction is overcome.

Description

Swivel bearing for cable

Technical Field

The utility model relates to the field of bearings, in particular to a rotary bearing for a cable.

Background

The bearing is an important part in the modern mechanical equipment, the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body.

At present, the cable is guided to directly pass through a pipeline, and part of machinery can be adjusted and guided by adopting structures such as pulleys.

However, the friction force of the current cable guiding method to the cable is large, and the torsion generated in the cable stretching process cannot be released due to the friction force, so that the service life of the cable is damaged.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims to provide a rotary bearing for a cable, so as to solve the technical problems that the friction force to the cable is large and the twisting cannot be released in the existing cable guiding process.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a swivel bearing for cable, includes the bearing inner race, the inside rotation of bearing inner race is connected with the bearing inner race, the bearing inner race with be provided with the multiunit ball between the bearing inner race, the bearing inner race inner wall rotates and is connected with multiunit cable gyro wheel.

Through adopting above-mentioned technical scheme, the fixed whole equipment of bearing inner race that sets up, the torsion of rotation release cable through the bearing inner race makes the bearing inner race can the free rotation through the ball, reduces the frictional force of cable through the cable gyro wheel.

The utility model is further provided that cables are connected among the plurality of groups of cable rollers in a sliding manner, and the rotation direction of the cable rollers is the axial direction of the cables.

Through adopting above-mentioned technical scheme, the rotation direction that sets up makes cable gyro wheel agree with the cable, and then reduces the frictional force that produces when the cable removes.

The utility model is further provided with a plurality of groups of roller grooves matched with the cable rollers are formed in the inner wall of the bearing inner ring, and roller shafts matched with the cable rollers are arranged in the roller grooves.

By adopting the technical scheme, the cable roller can freely rotate due to the arranged roller groove, and the rotating center of the cable roller is fixed through the roller shaft.

The utility model is further provided that one side of the bearing outer ring, which is close to the bearing inner ring, is provided with a ball groove matched with the ball.

By adopting the technical scheme, the arranged ball grooves enable the balls to rotate between the bearing outer ring and the bearing inner ring, and the rotating friction force of the bearing inner ring is further reduced.

In summary, the utility model mainly has the following beneficial effects:

1. according to the utility model, the cable is guided by the inner ring of the bearing, when the cable slides, the friction force is changed from sliding friction to rolling friction due to the combined action of the plurality of groups of cable rollers and the cable, so that the friction force generated on the cable during guiding is greatly reduced, and the defect that the cable is easily damaged due to larger friction force of a traditional guiding mechanism is avoided;

2. according to the self-twisting cable guide mechanism, the bearing inner ring is rotationally connected with the bearing outer ring, so that when a cable is subjected to self-twisting, the torsion generated by the twisting of the cable is utilized to drive the cable roller, and further the bearing inner ring is driven to rotate, the torsion of the cable is released, and the defect that the traditional guide mechanism hinders the cable to recover from a twisting state due to large friction is overcome.

Drawings

FIG. 1 is a structural cross-sectional view of the present invention;

FIG. 2 is a main body structure view of the present invention;

FIG. 3 is a diagram illustrating the structure of the working state of the present invention;

fig. 4 is a schematic structural diagram of the present invention.

In the figure: 1. a bearing outer race; 2. a bearing inner race; 3. a cable roller; 4. a roller shaft; 5. a ball bearing; 6. a ball groove; 7. a roller groove; 8. a cable.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

A rotary bearing for cables, as shown in figures 1 and 3, comprises a bearing outer ring 1, wherein the bearing outer ring 1 is fixed at a guide position, and cables 8 penetrate out of a plurality of groups of cable rollers 3 to guide the subsequent movement of the cables 8, a bearing inner ring 2 is rotatably connected inside the bearing outer ring 1, the bearing inner ring 2 is rotatably connected with the bearing outer ring 1, when the cables 8 are subjected to self-distortion, the torsion generated by the distortion of the cables 8 is utilized to drive the cable rollers 3 and further drive the bearing inner ring 2 to rotate, so that the torsion of the cables 8 is released, a plurality of groups of balls 5 are arranged between the bearing outer ring 1 and the bearing inner ring 2, the bearing inner ring 2 can freely rotate through the balls 5, a plurality of groups of cable rollers 3 are rotatably connected with the inner wall of the bearing inner ring 2, and the friction force is changed from sliding friction to rolling friction due to the combined action between the plurality of groups of cable rollers 3 and the cables 8, the friction generated to the cable 8 during guiding is greatly reduced.

Referring to the drawings, the cables 8 are slidably connected between the cable rollers 3, the rotation direction of the cable rollers 3 is the axial direction of the cables 8, and the cable rollers 3 are engaged with the cables 8 through the rotation direction, so that the friction force generated when the cables 8 move is reduced.

Referring to fig. 1 and 3, a plurality of roller grooves 7 matched with the cable roller 3 are formed in the inner wall of the bearing inner ring 2, the cable roller 3 can rotate freely through the arranged roller grooves 7, a roller shaft 4 matched with the cable roller 3 is arranged in each roller groove 7, and the rotation center of the cable roller 3 is fixed through the roller shaft 4.

Referring to fig. 1 and 3, ball grooves 6 matched with the balls 5 are formed on the sides of the outer ring 1 and the inner ring 2 close to each other, and the balls 5 can rotate between the outer ring 1 and the inner ring 2 through the ball grooves 6, so as to further reduce the rotating friction force of the inner ring 2.

The working principle of the utility model is as follows: be fixed in guide position department with bearing inner race 1, and wear out cable 8 from multiunit cable gyro wheel 3, through bearing inner race 2 guide cable 8, when cable 8 slides, because the combined action between multiunit cable gyro wheel 3 and the cable 8, frictional force becomes rolling friction by sliding friction, the frictional force to cable 8 production when having reduced the guide by a wide margin, avoided the great drawback that damages cable 8 of easy of traditional guiding mechanism frictional force, and be connected through bearing inner race 2 and bearing outer race 1's rotation, when making cable 8 take place from warping, utilize the torsion that cable 8 distortion produced to drive cable gyro wheel 3, and then drive bearing inner race 2 and rotate, thereby make the torsion of cable 8 obtain the release, avoided traditional guiding mechanism because frictional force is great, hinder the drawback that cable 8 resumes from the distortion state.

Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.

Claims

1. The utility model provides a swivel bearing for cable, includes bearing inner race (1), bearing inner race (1) internal rotation is connected with bearing inner race (2), bearing inner race (1) with be provided with multiunit ball (5), its characterized in that between bearing inner race (2): the inner wall of the bearing inner ring (2) is rotatably connected with a plurality of groups of cable rollers (3).

2. A swivel bearing for cables according to claim 1, characterized in that: the cable (8) is connected between the multiple groups of cable rollers (3) in a sliding mode, and the rotation direction of the cable rollers (3) is the axial direction of the cable (8).

3. A swivel bearing for cables according to claim 1, characterized in that: the inner wall of the bearing inner ring (2) is provided with a plurality of groups of roller grooves (7) matched with the cable rollers (3), and roller shafts (4) matched with the cable rollers (3) are arranged in the roller grooves (7).

4. A swivel bearing for cables according to claim 1, characterized in that: and one side of the bearing outer ring (1) close to one side of the bearing inner ring (2) is provided with a ball groove (6) matched with the ball (5).