CN213949736U

CN213949736U - Guide wheel shaft capable of reducing friction

Info

Publication number: CN213949736U
Application number: CN202023216078.7U
Authority: CN
Inventors: 陈小军; 赵欢
Original assignee: CHENGDU YUSIZONG TECHNOLOGY CO LTD
Current assignee: CHENGDU YUSIZONG TECHNOLOGY CO LTD
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-13
Anticipated expiration: 2030-12-28

Abstract

The utility model relates to a guide wheel shaft capable of reducing friction, which comprises a rotating shaft body and screwed joints positioned at two ends of the rotating shaft body; the middle part of the rotating shaft body is provided with at least two circles of blind grooves which are arranged along the radial direction, and a compression spring is fixed in each blind groove; the top of each compression spring is respectively fixed with an ejection part which extends out of the surface of the rotating shaft body along the radial direction of the rotating shaft body; a ball body is movably embedded in the ejection part and extends out of the top of the ejection part to be used as a roller to slide; under the assembled state, the leading wheel inboard forms rolling friction with the spheroid, and this scheme can effectively reduce the friction between leading wheel and the pivot to reduce the wearing and tearing of wire axis, it is not influenced or influence is lower to guarantee the guide precision of leading wheel.

Description

Guide wheel shaft capable of reducing friction

Technical Field

The utility model relates to a hardware, concretely relates to but reducing friction's leading wheel axle.

Background

The guide wheel is used for guiding the direction of a soft pipeline or soft linear objects such as steel wires, nylon ropes and the like in the moving process. The guide wheel is provided with a pulley structure, and the guide wheel can play a role in saving power in certain projects or products. The traditional guide wheel is generally arranged on a rotating shaft, and the guide wheel can rotate along with the rotating shaft in the process of direction guiding, so that when the guide wheel is stressed greatly, the friction force on the rotating shaft is increased, the rotating shaft is abraded in the past, and the position or direction of the wire guide wheel can be deviated after the abrasion, so that the guiding precision is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a can reduce frictional leading wheel axle, can effectively reduce the friction between leading wheel and the pivot to reduce the wearing and tearing of leading wheel axle, it is lower to be not influenced or influence with the guide precision of guaranteeing the leading wheel.

The purpose of the utility model is realized through the following technical scheme:

a reduced friction steering axle comprising:

the rotary shaft comprises a rotary shaft body and threaded joints positioned at two ends of the rotary shaft body;

the middle part of the rotating shaft body is provided with at least two circles of blind grooves which are arranged along the radial direction, and a compression spring is fixed in each blind groove;

the top of each compression spring is respectively fixed with an ejection part which extends out of the surface of the rotating shaft body along the radial direction of the rotating shaft body;

a ball body is movably embedded in the ejection part and extends out of the top of the ejection part to be used as a roller to slide;

in the assembled state, the inner side of the guide wheel forms rolling friction with the ball body.

This scheme is through radially setting up a plurality of gyro wheel structures (ejecting portion and spheroidal cooperation) that are supported by compression spring at the pivot body for the friction of leading wheel and pivot body has converted the friction of leading wheel with the gyro wheel, thereby has eliminated the wearing and tearing to the pivot body, can also guarantee simultaneously the spheroid all the time with leading wheel inner circle butt under compression spring's support, thereby guarantee that the direction of guide of wire wheel does not take place to deflect.

Furthermore, the number of the blind grooves in each circle is at least six, and the larger the number of the blind grooves is, the better the blind grooves are under the condition that the stress of the rotating shaft body is not influenced.

Furthermore, the heights of the spheres extending out of the surface of the rotating shaft body are consistent.

Furthermore, the height of the sphere extending out of the surface of the rotating shaft body is 3-5 mm.

Furthermore, the compression spring is a strong spring, and the elastic coefficient of the compression spring meets the requirement that the compression amount of the guide wheel is not changed or the change amount is in a micron order under the rotating state of the guide wheel.

Furthermore, a sliding groove matched with the ball body is arranged on the inner side of the guide wheel.

Furthermore, the depth of the sliding groove is 0.5-1mm different from the height of the ball extending out of the surface of the rotating shaft body, so that the gap between the guide wheel and the rotating shaft body is 0.5-1 mm.

Further, the number of the sliding grooves is the same as the number of turns of the blind grooves.

The utility model has the advantages that: this scheme will be originally wearing and tearing between leading wheel and the pivot convert the wearing and tearing between leading wheel and the spheroid into, and its friction mode has also trund into rolling friction by original sliding friction, and the spheroid under compression spring's effect all the time with wire wheel butt to guaranteed that wire wheel is rotating the in-process and hardly take place the offset, eliminated the problem that the leading wheel precision drops because of pivot wearing and tearing cause under the traditional mode.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is an axial cross-sectional view of the present invention;

FIG. 3 is a radial cross-sectional view of the present invention;

fig. 4 is a schematic view of the assembly of the present invention with a wire guide wheel;

fig. 5 is a schematic view of the guide wheel.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in fig. 1, a guiding axle capable of reducing friction comprises a rotating shaft body 1 and threaded joints 2 positioned at two ends of the rotating shaft body 1; the middle part of the rotating shaft body 1 is provided with at least two circles of blind grooves 6 which are arranged along the radial direction, the structure of the rotating shaft body can be shown by referring to fig. 2, and a compression spring 5 is fixed in each blind groove 6; the top of each compression spring 5 is respectively fixed with an ejection part 4, and the ejection parts 4 extend out of the surface of the rotating shaft body 1 along the radial direction of the rotating shaft body 1; a ball body 3 is movably embedded in the ejection part 4, and the ball body 3 extends out of the top of the ejection part 4 to be used as a roller to slide; the inner side of the guide wheel 8 forms rolling friction with the ball 3 in the assembled state, and the structure thereof in the assembled state can be seen with reference to fig. 4.

Alternatively, the number of the blind grooves 6 in each circle is at least six, the structure of the guide wheel shaft can be shown in fig. 3, the blind grooves 6 are uniformly formed along the radial direction, the depth of each blind groove 6 is about 5-10mm, and the compression spring 5 is completely positioned in the blind groove 6. Preferably, the height of each ball 3 extending out of the surface of the rotating shaft body 1 is consistent, and the height of each ball 3 extending out of the surface of the rotating shaft body 1 is 3-5 mm.

Optionally, the compression spring 5 is a strong spring, and its elastic coefficient satisfies that the compression amount of the guide wheel 8 is not changed or the change amount is in micron order when the guide wheel rotates.

Alternatively, a guiding axle capable of reducing friction, a sliding groove 9 matched with the ball 3 is arranged inside the guiding wheel 8, and the guiding axle is shown in reference to fig. 5. The depth of the sliding groove 9 is 0.5-1mm different from the height of the ball 3 extending out of the surface of the rotating shaft body 1, so that the gap between the guide wheel 8 and the rotating shaft body 1 is 0.5-1 mm. The number of the sliding grooves 9 is the same as the number of turns of the blind grooves 6, and in the embodiment, the number of the sliding grooves 9 is the same as the number of turns of the blind grooves 6 shown in fig. 1 and 2, and the number of the sliding grooves is two.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A reduced friction steering wheel axle, comprising:

the rotary shaft comprises a rotary shaft body (1) and threaded joints (2) positioned at two ends of the rotary shaft body (1);

the middle part of the rotating shaft body (1) is provided with at least two circles of blind grooves (6) which are arranged along the radial direction, and a compression spring (5) is fixed in each blind groove (6);

the top of each compression spring (5) is respectively fixed with an ejection part (4), and the ejection parts (4) extend out of the surface of the rotating shaft body (1) along the radial direction of the rotating shaft body (1);

a ball body (3) is movably embedded in the ejection part (4), and the ball body (3) extends out of the top of the ejection part (4) and slides as a roller;

in the assembled state, the inner side of the guide wheel (8) forms rolling friction with the ball body (3).

2. A reduced friction steering wheel axle according to claim 1, characterised in that the number of blind grooves (6) per turn is at least six.

3. A friction reducing steering wheel axle according to claim 2, characterised in that the balls (3) extend out of the surface of the body (1) of the axle to a uniform height.

4. A friction reducing steering wheel axle according to claim 3, characterised in that the height of the ball (3) protruding from the surface of the spindle body (1) is 3-5 mm.

5. A reduced friction guide wheel axle according to claim 4, characterized in that the compression spring (5) is a strong spring with a spring constant that is such that the compression of the guide wheel (8) is not changed or is changed by a micrometer.

6. A reduced friction steering wheel axle according to claim 5, characterised in that the steering wheel (8) is provided with a runner (9) inside which the ball (3) fits.

7. A friction reducing idler shaft according to claim 6 wherein the depth of the sliding groove (9) is 0.5-1mm different from the height of the ball (3) protruding from the surface of the rotating shaft body (1), so that the clearance between the idler wheel (8) and the rotating shaft body (1) is 0.5-1 mm.

8. A reduced friction steering wheel axle according to claim 7, characterised in that the number of runners (9) is the same as the number of blind runners (6).