CN220956473U

CN220956473U - Dustproof bearing with high tightness

Info

Publication number: CN220956473U
Application number: CN202322771902.2U
Authority: CN
Inventors: 洪学惠; 王印东; 宋浩; 李巍
Original assignee: Ningbo Naida Bearing Co ltd
Current assignee: Ningbo Naida Bearing Co ltd
Priority date: 2023-10-16
Filing date: 2023-10-16
Publication date: 2024-05-14
Anticipated expiration: 2033-10-16

Abstract

The utility model relates to a dustproof bearing with high tightness, which comprises an outer ring and an inner ring, wherein the inner ring is arranged on the inner side of the outer ring, an annular outer sliding groove is formed in the inner side of the outer ring, an annular inner sliding groove is formed in the outer side of the inner ring, a retainer is arranged between the outer ring and the inner ring, through holes are formed in the side surfaces of the retainer at equal intervals, rolling bodies are arranged in the through holes and between the outer ring and the inner ring, and sealing rings are arranged on the two sides of the rolling bodies and between the outer ring and the inner ring. The utility model solves the problems that the installation of the sealing ring is difficult because the inner ring and the outer ring of the existing bearing are not on the same horizontal plane, the middle of the bearing is easy to be sunken after the sealing ring is added between the inner ring and the outer ring, the installation gap is increased, dust is easy to be generated in the bearing after long-term use, the motor is operated to generate loud sound, and noise is generated, so the utility model is unfavorable for practical use.

Description

Dustproof bearing with high tightness

Technical Field

The utility model relates to the technical field of dustproof bearings, in particular to a dustproof bearing with high tightness.

Background

Bearings are an important component in contemporary mechanical devices. Its main function is to support the mechanical rotator, reduce the friction coefficient in the course of its movement and ensure its rotation accuracy. Bearings can be divided into two main categories, rolling bearings and sliding bearings, according to the friction properties of the moving elements. Rolling bearings are classified into two main types, ball bearings and roller bearings, according to the shape of rolling elements. And part of the reason for failure of the miniature ball bearing is caused by contamination with dust, dirt, debris, and corrosion. Contamination is often caused by improper use and poor use conditions, which also causes torque and noise problems.

In the existing bearing, the inner ring and the outer ring of the bearing are not on the same horizontal plane, the sealing ring is difficult to install, the middle of the bearing is easy to sink after the sealing ring is added between the inner ring and the outer ring, the installation gap is increased, dust is easy to generate in the bearing after long-term use, the motor runs to generate loud sound, and noise is generated, so that the bearing is unfavorable for practical use.

Disclosure of utility model

In view of the above problems in the prior art, a main object of the present utility model is to provide a dust-proof bearing with high sealing property.

The technical scheme of the utility model is as follows: the utility model provides a dustproof bearing that seal is high, includes outer lane and inner circle, the inner circle sets up the inboard at the outer lane, annular outer spout has been seted up to the inboard of outer lane, annular inner spout has been seted up in the outside of inner circle, be provided with the keeper between outer lane and the inner circle, the through-hole has been seted up to the side equidistance of keeper, the inside of through-hole just is located all set up the rolling element between outer lane and the inner circle, the both sides of rolling element just are located all to be provided with the sealing washer between outer lane and the inner circle.

As a preferred implementation mode, the inner side of the outer ring and the two sides of the outer chute are provided with outer clamping grooves, and the outer side of the inner ring and the two sides of the inner chute are provided with inner clamping grooves.

As a preferred embodiment, one side of each of the two sealing rings is provided with an annular groove.

As a preferable implementation mode, the outer sides of the two sealing rings and the inner wall of the groove are fixedly connected with annular convex blocks.

As a preferred embodiment, the rolling elements, the inner chute and the outer chute are concentric circular arcs.

As a preferred embodiment, both sides of the outer ring and the inner ring are on the same horizontal plane.

As a preferred embodiment, the inner side of the outer ring and the outer side of the inner ring are both provided with cambered surface structures.

Compared with the prior art, the utility model has the advantages and positive effects that firstly, the two sides of the outer chute are respectively provided with the outer clamping groove, the two sides of the inner chute are respectively provided with the inner clamping groove, and secondly, the annular grooves at the bottom of the sealing ring form a semi-open cavity structure, so that the sealing ring is convenient to elastically deform to a certain extent, the annular convex blocks at the two sides of the sealing ring are clamped between the inner clamping groove and the outer clamping groove, the annular convex blocks at the two sides of the sealing ring can be clamped with the inner clamping groove and the outer clamping groove, the flatness of the surface of the bearing is ensured, dust is prevented from entering the bearing, the friction force between the bearings is reduced, and the sealing ring is more beneficial to practical use.

Drawings

FIG. 1 is an exploded view of a dust-proof bearing with high tightness according to the present utility model;

FIG. 2 is a schematic perspective view of a dust-proof bearing with high tightness;

FIG. 3 is a schematic diagram of a semi-sectional structure of a dust-proof bearing with high tightness;

Fig. 4 is an enlarged view of a portion a in fig. 3 of the dust-proof bearing with high sealing property according to the present utility model.

Legend description: 1. an outer ring; 2. an inner ring; 3. a rolling element; 4. a retainer; 5. a seal ring; 6. a through hole; 7. an annular bump; 8. a groove; 9. an inner clamping groove; 10. an outer clamping groove; 11. an inner chute; 12. an outer chute.

Detailed Description

The utility model will be further described with reference to the drawings and the specific embodiments

Example 1

As shown in fig. 1 to 4, the present utility model provides a technical solution: including outer lane 1 and inner circle 2, inner circle 2 sets up the inboard at outer lane 1, and annular outer spout 12 has been seted up to the inboard of outer lane 1, and annular inner spout 11 has been seted up in the outside of inner circle 2, is provided with keeper 4 between outer lane 1 and the inner circle 2, and through-hole 6 has been seted up to the side equidistance of keeper 4, and the inside of through-hole 6 just is located all sets up rolling element 3 between outer lane 1 and the inner circle 2, and rolling element 3 both sides just are located and all are provided with sealing washer 5 between outer lane 1 and the inner circle 2.

In this embodiment, through set up annular circular arc outside spout 12 and interior chute 11 respectively in the inboard of outer lane 1 and the outside of inner circle 2 for the cambered surface of the inside rolling element 3 of bearing is bigger with the side area contact of outer lane 1, inner circle 2, more laminating, avoid the bearing when using, the gliding condition appears, secondly, through keeper 4, control the interval between the rolling element 3, make the spaced apart distance between every rolling element 3 all equal, thereby make whole bearing evenly bear external load, finally through set up sealing washer 5 respectively between outer lane 1 and inner circle 2, avoid the dust to get into inside the bearing, keep the bearing surface at same horizontal plane simultaneously, avoid the bearing to take place to dent at the in-process that uses, in sum up, thereby effectually reduced the friction between the bearing inside, the life of bearing has been improved, make it more be favorable to actual use.

Example 2

As shown in fig. 1-4, the inner side of the outer ring 1 and positioned at two sides of the outer chute 12 are provided with outer clamping grooves 10, and the outer side of the inner ring 2 and positioned at two sides of the inner chute 11 are provided with inner clamping grooves 9. By providing the outer clamping groove 10 and the inner clamping groove 9 on the inner side of the outer ring 1 and the outer side of the inner ring 2, the sealing ring 5 is convenient to install and fix.

Wherein, annular groove 8 has all been seted up to one side of two sealing washer 5. Through setting up annular groove 8 in one side of sealing washer 5 for the inside of sealing washer 5 forms a half open cavity structure, and sealing washer 5 of being convenient for takes place certain elastic deformation, thereby blocks into between interior draw-in groove 9 and the outer draw-in groove 10.

Wherein, the outside of two sealing washer 5 and the inner wall of recess 8 are all fixedly connected with annular lug 7. Through set up annular lug 7 in the outside of sealing washer 5 and the inner wall of recess 8 to make after sealing washer 5 card go into interior draw-in groove 9 and outer draw-in groove 10, annular lug 7 can with interior draw-in groove 9, the mutual joint of outer draw-in groove 10, avoid sealing washer 5 to drop.

Wherein, the rolling bodies 3, the inner chute 11 and the outer chute 12 are concentric circular arcs. The contact area between the rolling bodies 3 and the inner sliding groove 11 and the outer sliding groove 12 is increased, so that the rolling bodies 3 can effectively roll in the sliding groove between the outer ring 1 and the inner ring 2, friction between the outer ring 1, the inner ring 2 and the rolling bodies 3 is avoided, and the service life of the bearing is prolonged.

Wherein both sides of the outer ring 1 and the inner ring 2 are positioned on the same horizontal plane. Therefore, the surface of the bearing is smoother, gaps generated after installation are effectively reduced, and the motor runs with smaller sound and is more mute.

Wherein, the inner side of the outer ring 1 and the two sides of the inner ring 2 are both arranged to be cambered structures. Through setting the inner side of outer lane 1 and the both sides of inner circle 2 to the cambered surface structure to make sealing washer 5 slide into interior draw-in groove 9 and outer draw-in groove 10 with the radian of both sides more easily and carry out the joint fixedly, make sealing washer 5 be convenient for the installation more.

Working principle: through offer annular circular arc outside spout 12 and interior chute 11 respectively in the inboard of outer lane 1 and the outside of inner circle 2 for the cambered surface of the inside rolling element 3 of bearing is bigger with the side area of outer lane 1, inner circle 2, more laminate, avoid the bearing when using, the gliding condition appears, secondly through keeping ware 4, control the interval between the rolling element 3, make the spaced apart distance between every rolling element 3 all equal, thereby make whole bearing evenly bear external load, finally through all having offered outside draw-in groove 10 in the both sides of outer spout 12, interior draw-in groove 9 has all been offered in the both sides of interior chute 11, make the annular lug 7 of sealing washer 5 both sides can with interior draw-in groove 9, outside draw-in groove 10 joint each other.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a dustproof bearing that seal is high, includes outer lane (1) and inner circle (2), its characterized in that: the novel inner ring is characterized in that the inner ring (2) is arranged on the inner side of the outer ring (1), an annular outer sliding groove (12) is formed in the inner side of the outer ring (1), an annular inner sliding groove (11) is formed in the outer side of the inner ring (2), a retainer (4) is arranged between the outer ring (1) and the inner ring (2), through holes (6) are formed in the side surfaces of the retainer (4) at equal intervals, rolling bodies (3) are arranged in the through holes (6) and between the outer ring (1) and the inner ring (2), and sealing rings (5) are arranged on two sides of the rolling bodies (3) and between the outer ring (1) and the inner ring (2).

2. A high tightness dust bearing according to claim 1, wherein: the inner side of the outer ring (1) and the two sides of the outer chute (12) are respectively provided with an outer clamping groove (10), and the outer side of the inner ring (2) and the two sides of the inner chute (11) are respectively provided with an inner clamping groove (9).

3. A high tightness dust bearing according to claim 1, wherein: one side of each sealing ring (5) is provided with an annular groove (8).

4. A high tightness dust bearing according to claim 1, wherein: the outer sides of the two sealing rings (5) and the inner wall of the groove (8) are fixedly connected with annular protruding blocks (7).

5. A high tightness dust bearing according to claim 1, wherein: the rolling bodies (3), the inner sliding groove (11) and the outer sliding groove (12) are concentric circular arcs.

6. A high tightness dust bearing according to claim 1, wherein: both sides of the outer ring (1) and the inner ring (2) are positioned on the same horizontal plane.

7. A high tightness dust bearing according to claim 1, wherein: the inner side of the outer ring (1) and the outer side of the inner ring (2) are both arranged to be of cambered surface structures.