CN210034248U

CN210034248U - Wave spring for pre-tightening fan bearing

Info

Publication number: CN210034248U
Application number: CN201920471894.0U
Authority: CN
Inventors: 余旭杰; 刘州; 陈晶亮
Original assignee: Zhejiang Lisheng Spring Co Ltd
Current assignee: Zhejiang Lisheng Spring Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-02-07
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a wave spring is used to fan bearing pretension, including the spring body, first spout has been seted up to spring body end to end department, and the inside front and back both sides of first spout have all seted up the second spout, the gyro wheel is connected with the equal fixed of first fixed block and second fixed block, the last fixed surface of spring body is connected with the third fixed block, and the upper surface of third fixed block has seted up the second draw-in groove, the hole groove has all been seted up to the inside left and right sides of third fixed block, the first spring of inside fixedly connected with in hole groove, and one side fixedly connected with second fixture block that first spring is close to the fourth fixed block, third fixture block groove has all been seted up to the left and right sides of fourth fixed block lower extreme. This wave spring is used in fan bearing pretension, a plurality of combination uses of being convenient for, great improvement the practicality, and operate more simple and convenient, simultaneously great improvement this wave spring's work efficiency.

Description

Wave spring for pre-tightening fan bearing

Technical Field

The utility model relates to a fan correlation technique field specifically is a wave spring is used in fan bearing pretension.

Background

At present, the flat wire is subjected to cold treatment, heat treatment, surface treatment and other related processes, so that the product is formed into a wavy shape, 50% of axial space can be reduced compared with a common cylindrical spring, and even more axial space can be reduced, the design requirement of fan axial space compactness is met, meanwhile, the wave spring can output a relatively accurate force value at a specified working height, so that the bearing clearance is effectively pre-pressed, the wind noise of the fan is reduced, the requirement of the fan for the axial space in the design process is relatively compact, the pre-pressing spring of the bearing directly influences the service life of the fan product, the wind noise and other key parameters.

However, the wave springs are often all of specified models and cannot be adjusted, the use of various fans is inconvenient, the practicability of the wave springs is greatly reduced, friction among the wave springs influences the service life of the spring limit, the operation is not convenient enough, and the working efficiency is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fan bearing is wave spring for pretension to provide in solving above-mentioned background art, can not make up the use, greatly reduced wave spring's practicality, and the friction between a plurality of wave spring, influenced spring limit life, it is convenient inadequately to operate, great reduction the problem of the efficiency of work.

In order to achieve the above object, the utility model provides a following technical scheme: a wave spring for pre-tightening a fan bearing comprises a spring body, wherein a first sliding groove is formed in the end-to-end joint of the spring body, second sliding grooves are formed in the front side and the rear side of the inner portion of the first sliding groove, a roller is connected to the inner side of each second sliding groove in a sliding manner, the roller is fixedly connected with a first fixing block and a second fixing block, a first clamping block is fixedly connected to the lower end of the first fixing block, a first clamping groove is formed in the upper end of the second fixing block, a third fixing block is fixedly connected to the upper surface of the spring body, a second clamping groove is formed in the upper surface of the third fixing block, a fourth fixing block is connected to the upper end of the third fixing block in a clamping manner, hole grooves are formed in the left side and the right side of the inner portion of the third fixing block, a first spring is fixedly connected to the inner portion of each hole groove, and the left side and the right side of the lower end of the fourth fixed block are both provided with third clamping block grooves, and the third clamping block grooves are connected with the second clamping blocks in a clamping manner.

Preferably, first spout is provided with 2 in the end to end department of spring body, and first fixed block and second fixed block all constitute on first spout and dismantle the structure.

Preferably, the longitudinal cross sections of the first fixed block and the second fixed block are both in a T shape, and the maximum diameter sizes of the first fixed block and the second fixed block are both larger than the width size of the first sliding groove.

Preferably, the fourth fixed block is a structure shaped like a Chinese character 'tu', the minimum width of the fourth fixed block is equal to the width of the second clamping groove, and the fourth fixed block and the third fixed block are respectively provided with 5 fixing blocks on the lower surface and the upper surface of the spring body at equal intervals.

Preferably, the hole groove and the first spring are symmetrically arranged about a vertical middle axis of the fourth fixing block by 2, and the diameter of one side of the hole groove close to the fourth fixing block is smaller than that of the second fixing block.

Preferably, the second fixture block is in a spherical structure, and the diameter of the third fixture block groove is smaller than that of the second fixture block.

Compared with the prior art, the beneficial effects of the utility model are that: the wave spring for pre-tightening the fan bearing is convenient for a plurality of wave springs to be combined for use, greatly improves the practicability, is simpler and more convenient to operate, and greatly improves the working efficiency of the wave spring;

1. the first fixing block and the second fixing block are arranged, so that the first fixing block and the second fixing block can conveniently slide on the first sliding groove, the friction at the end-to-end joint of the spring body is reduced, the first fixing block and the second fixing block are convenient to disassemble, and the service life of a product is prolonged;

2. the spring body is provided with 5 third fixed blocks and 5 fourth fixed blocks which are arranged on the upper surface and the lower surface of the spring body at equal intervals, so that the spring bodies are convenient to connect and fix, the combination use is convenient, and the practicability of the product is improved;

3. be equipped with second fixture block and third fixture block groove, the second fixture block carries out automatic block through first spring to third fixture block groove, and the fourth fixed block of being convenient for and the fixed of third fixed block operate convenient and fast more, the combined use of a plurality of spring bodies of being convenient for simultaneously, great improvement the practicality.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a schematic view of a connection structure between the first chute and the first fixed block of the present invention;

fig. 3 is a schematic view of a connection structure of the first fixing block and the second fixing block of the present invention;

fig. 4 is a schematic view of a connection structure of the second clamping block and the third clamping block groove of the present invention;

FIG. 5 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 6 is a schematic view of a connection structure between the third fixing block and the fourth fixing block of the present invention.

In the figure: 1. a spring body; 2. a first chute; 3. a second chute; 4. a roller; 5. a first fixed block; 6. a second fixed block; 7. a first clamping block; 8. a first card slot; 9. a third fixed block; 10. a second card slot; 11. a fourth fixed block; 12. a hole groove; 13. a first spring; 14. a second fixture block; 15. and a third block groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a wave spring for pre-tightening a fan bearing comprises a spring body 1, a first sliding groove 2, a second sliding groove 3, a roller 4, a first fixing block 5, a second fixing block 6, a first clamping block 7, a first clamping groove 8, a third fixing block 9, a second clamping groove 10, a fourth fixing block 11, a hole groove 12, a first spring 13, a second clamping block 14 and a third clamping block groove 15, wherein the first sliding groove 2 is formed at the head-tail joint of the spring body 1, the second sliding grooves 3 are formed in the front side and the rear side of the inner part of the first sliding groove 2, the roller 4 is connected to the inner side of the second sliding groove 3 in a sliding manner, the roller 4 is fixedly connected with the first fixing block 5 and the second fixing block 6, the first clamping block 7 is fixedly connected to the lower end of the first fixing block 5, the first clamping groove 8 is formed in the upper end of the second fixing block 6, the third fixing block 9 is fixedly connected to the upper surface of the spring body 1, and the second clamping groove 10 is formed, and the upper end block of third fixed block 9 is connected with fourth fixed block 11, and hole groove 12 has all been seted up to the inside left and right sides of third fixed block 9, and the inside fixedly connected with first spring 13 of hole groove 12, and one side fixedly connected with second fixture block 14 that first spring 13 is close to fourth fixed block 11, and third fixture block groove 15 has all been seted up to the left and right sides of fourth fixed block 11 lower extreme, and third fixture block groove 15 is connected with second fixture block 14 block.

As in figure 2 first spout 2 is provided with 2 in the end to end department of spring body 1, and first fixed block 5 and second fixed block 6 all constitute on first spout 2 and dismantle the structure, convenient to detach and change gyro wheel 4, the longitudinal section shape of first fixed block 5 and second fixed block 6 is "T" font, and the maximum diameter size of first fixed block 5 and second fixed block 6 all is greater than the width size of first spout 2, the frictional force that produces when being convenient for reduce spring body 1 and moving, the life of spring body 1 has been increased.

As shown in fig. 4, the fourth fixing block 11 is in a "convex" shape, and the minimum width dimension of the fourth fixing block 11 is equal to the width dimension of the

second slot

10, and 5 fourth

fixed blocks

11 and 5 third fixed blocks 9 are respectively arranged on the lower surface and the upper surface of the spring body 1 at equal intervals, so that the clamping and the fixing between the spring bodies 1 are convenient, the combined use of the spring bodies 1 is convenient, 2

hole grooves

12 and 2 first springs 13 are symmetrically arranged about the vertical middle axis of the fourth fixed block 11, and the diameter of the hole groove 12 close to the fourth fixing block 11 is smaller than that of the second fixture block 14, the second fixture block 14 is in a spherical structure, and the diameter size of the third clamping block groove 15 is smaller than that of the second clamping block 14, so that the fourth fixing block 11 and the third fixing block 9 can be conveniently fixed, and when a plurality of spring bodies 1 are combined for use, the combination is more stable and firm.

The working principle is as follows: when the wave spring for pre-tightening the fan bearing is used, the wave spring is sleeved on the bearing, the first chute 2 is arranged at the end-to-end joint of the wave spring, the first chute 2 is connected with the first fixed block 5 and the second fixed block 6 in a sliding way, the friction force generated when the spring body 1 is elastically deformed is greatly reduced, the first fixed block 5 and the second fixed block 6 slide on the first chute 2, the roller 4 fixedly connected to the first fixed block 5 and the second fixed block 6 starts to slide on the second chute 3 at the same time, the important function for reducing the friction force is also played, the first fixed block 5 and the second fixed block 6 form a disassembly structure through the first fixture block 7 and the first clamping groove 8, and the first fixed block 5 and the second fixed block 6 are fixed through bolts, so that the later-stage replacement and maintenance are convenient, and the service life of the wave spring is prolonged, the upper surface and the lower surface of the spring body 1 are respectively provided with a third fixed block 9 and a fourth fixed block 11, the third fixed block 9 and the fourth fixed block 11 are both positioned at the arc top of the spring body 1, the arrangement of the third fixed block 9 and the fourth fixed block 11 is convenient for assembly and installation, the practical range is wider, when the spring body 1 is installed, the fourth fixed block 11 is clamped into a second clamping groove 10 arranged on the third fixed block 9, the left side and the right side of the second clamping groove 10 are provided with a first spring 13 and a second clamping block 14, when the fourth fixed block 11 moves downwards, the first spring 13 is elastically deformed through the second clamping block 14, when the second clamping block 14 is contacted with the third clamping block groove 15, the first spring 13 restores elastic deformation, the second clamping block 14 is clamped with the third clamping block groove 15, thereby fixing the fourth fixed block 11 and the third fixed block 9, the combination use of a plurality of spring bodies 1 is convenient for, and the setting up of first spring 13 and second fixture block 14 makes the dismantlement installation more convenient, and this is the whole process that the wave spring used for fan bearing pretension.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fan bearing is wave spring for pretension, includes spring body (1), its characterized in that: the spring is characterized in that a first sliding groove (2) is formed in the end-to-end joint of the spring body (1), second sliding grooves (3) are formed in the front side and the rear side of the interior of the first sliding groove (2), a roller (4) is connected to the inner side of the second sliding groove (3) in a sliding manner, the roller (4) is fixedly connected with a first fixing block (5) and a second fixing block (6), a first clamping block (7) is fixedly connected to the lower end of the first fixing block (5), a first clamping groove (8) is formed in the upper end of the second fixing block (6), a third fixing block (9) is fixedly connected to the upper surface of the spring body (1), a second clamping groove (10) is formed in the upper surface of the third fixing block (9), a fourth fixing block (11) is connected to the upper end of the third fixing block (9), hole grooves (12) are formed in the left side and the right side of, the hole groove (12) is fixedly connected with a first spring (13), one side of the first spring (13) close to the fourth fixing block (11) is fixedly connected with a second clamping block (14), the left side and the right side of the lower end of the fourth fixing block (11) are provided with third clamping block grooves (15), and the third clamping block grooves (15) are connected with the second clamping blocks (14) in a clamping mode.

2. The wave spring for pre-tightening the fan bearing of claim 1, wherein: first spout (2) are provided with 2 in the end to end department of meeting of spring body (1), and first fixed block (5) and second fixed block (6) all constitute on first spout (2) and dismantle the structure.

3. The wave spring for pre-tightening the fan bearing of claim 1, wherein: the longitudinal sections of the first fixing block (5) and the second fixing block (6) are both T-shaped, and the maximum diameter sizes of the first fixing block (5) and the second fixing block (6) are larger than the width size of the first sliding groove (2).

4. The wave spring for pre-tightening the fan bearing of claim 1, wherein: the fourth fixed block (11) is of a convex structure, the minimum width of the fourth fixed block (11) is equal to the width of the second clamping groove (10), and the fourth fixed block (11) and the third fixed block (9) are respectively arranged on the lower surface and the upper surface of the spring body (1) at equal intervals and are 5 in number.

5. The wave spring for pre-tightening the fan bearing of claim 1, wherein: the hole grooves (12) and the first springs (13) are symmetrically arranged about the vertical middle axis of the fourth fixing block (11), and the diameter of one side, close to the fourth fixing block (11), of the hole grooves (12) is smaller than that of the second clamping block (14).

6. The wave spring for pre-tightening the fan bearing of claim 1, wherein: the second fixture block (14) is of a spherical structure, and the diameter size of the third fixture block groove (15) is smaller than that of the second fixture block (14).