CN220668155U

CN220668155U - Bearing sealing structure and bearing

Info

Publication number: CN220668155U
Application number: CN202322357492.7U
Authority: CN
Inventors: 李斌; 赵思程; 张可乐; 吕芳英
Original assignee: Xinchang County Newo Transmission Technology Co ltd
Current assignee: Xinchang County Newo Transmission Technology Co ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2024-03-26
Anticipated expiration: 2033-08-30

Abstract

The utility model provides a bearing sealing structure and a bearing, wherein a sealing body is arranged on the inner side of a dust cover positioned on an outer ring and an inner ring of the bearing in the bearing sealing structure, the sealing body comprises an outer peripheral sealing body, the outer peripheral sealing body is arranged on one side, close to the outer periphery, of the dust cover, and the sealing body is positioned between the dust cover and the radial side wall of the outer ring of the bearing. The technical scheme solves the technical problem that in the prior art, sealing between the bearing dust cover and the outer ring is not tight.

Description

Bearing sealing structure and bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a bearing sealing structure and a bearing.

Background

Bearings refer to components that act to fix and reduce the coefficient of friction of a load during mechanical transmission. Bearings may be used to reduce the coefficient of friction during power transmission and to keep the shaft centered when other parts are moved relative to each other on the shaft. Thus, the bearing is a very important component of contemporary mechanical equipment. Its main function is to support the mechanical rotator for reducing the mechanical load friction coefficient of the device during transmission. In order to avoid the direct exposure of the balls of the bearing, the conventional rolling bearing generally comprises an inner ring, an outer ring and rolling bodies which are positioned between the inner ring and the outer ring and are held by a retainer, and a dust cover which is symmetrical to the rolling bodies is arranged between the inner ring and the outer ring, so that the balls are prevented from being corroded by dust, oil dirt and other impurities.

At present, a bearing used on a limiting lifting wheel of a seeder is used Kuang Jiaocha, and external pollutants infiltrate into the bearing through the joint of the outer ring knurl and the dust cover, so that the bearing is abnormally disabled.

Disclosure of Invention

The utility model aims to provide a bearing sealing structure and a bearing, which are used for solving the technical problem that in the prior art, the sealing between a bearing dust cover and an outer ring is not tight _。 The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above object, in one aspect, the present utility model provides a bearing sealing structure, wherein a sealing body is disposed inside a dust cover located on an outer ring and an inner ring of the bearing, the sealing body includes a peripheral sealing body, and the peripheral sealing body is disposed on a side of the dust cover close to the periphery and located between the dust cover and a radial sidewall of the outer ring of the bearing.

Optionally, the sealing body further comprises an inner circumference sealing body, the inner circumference sealing body is arranged on one side, close to the inner circumference, of the dust cover, and the inner circumference sealing body is provided with at least one lip, and the lip is abutted with the inner circumferential surface of the bearing inner ring.

Optionally, a sealing groove is formed at the joint of the bearing outer ring and the dust cover, the end surface of the sealing groove is formed on the radial side wall, and a bending part adapting to the sealing groove structure is arranged on the dust cover corresponding to the sealing groove.

Optionally, the sealing body is a rubber sealing body.

Optionally, the sealing body is adhered to the dust cover.

Optionally, the seal groove inner surface is provided as a knurled surface.

Optionally, the outer peripheral sealing body and the inner peripheral sealing body are in a split arrangement or an integrated arrangement.

In another aspect, the utility model provides a bearing comprising a bearing seal arrangement as defined in any one of the preceding claims.

Optionally, the bearing further comprises rolling bodies which are arranged between the bearing outer ring and the bearing inner ring and are held by a retainer, and the bearing sealing structure is symmetrically arranged at two end positions between the bearing outer ring and the bearing inner ring.

The technical scheme of the utility model can have the following beneficial effects:

according to the bearing sealing structure and the bearing, on the basis of the design of the existing dust cover, the layer of sealing body is added in the outer diameter direction of the dust cover, so that the punched dust cover is tightly extruded and attached to the radial side wall of the sealing groove of the outer ring of the bearing through the sealing body close to the outer periphery side, the sealing performance of the position is improved, external pollutants are prevented from entering the bearing through the position, and abnormal failure of the bearing is avoided. After the sealing body is added at the structure, the sealing body and the bearing outer ring are changed from original rigid fit into flexible fit, so that the impact and vibration generated in the using process of the product can be absorbed, and the phenomena of slipping, falling and the like of the dust cover due to the external impact and vibration are prevented.

Therefore, the bearing sealing structure and the bearing solve the technical problem of poor sealing between the bearing dust cover and the outer ring in the prior art _。

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic view of a bearing seal structure according to an embodiment of the present utility model;

fig. 2 is a partial enlarged view of i in fig. 1.

In the figure: 1. a bearing outer ring; 11. sealing grooves; 2. a bearing inner ring; 3. a dust cover; 4. a retainer; 5. a rolling element; 6. a peripheral sealing body; 7. an inner peripheral sealing body; 71. and (3) a lip.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

As shown in fig. 1 and 2:

in one aspect, the utility model provides a bearing sealing structure, a sealing body is arranged on the inner side of a dust cover 3 of a bearing outer ring 1 and a bearing inner ring 2, the sealing body comprises an outer circumference sealing body 6, the outer circumference sealing body 6 is arranged on one side, close to the outer circumference, of the dust cover 3, and the sealing body is arranged between the dust cover 3 and the radial side wall of the bearing outer ring 1.

Specifically, on the basis of the design of the existing dust cover, a layer of sealing body is added in the outer diameter direction of the dust cover 3, so that the punched dust cover 3 is tightly extruded and attached to the radial side wall of the bearing outer ring 1 through the outer peripheral sealing body 3 close to the outer peripheral side, the sealing performance of the position is improved, external pollutants are prevented from entering the bearing through the position, and abnormal failure of the bearing is caused. After the sealing body is added at the structure, the sealing body and the bearing outer ring 1 are changed from original rigid fit into flexible fit, so that the impact and vibration generated in the using process of the product can be absorbed, and the phenomena of slipping, falling and the like of the dust cover 3 caused by external impact and vibration are prevented.

As an alternative embodiment, the sealing body further includes an inner peripheral sealing body 7, the inner peripheral sealing body 7 is disposed on a side of the dust cover 3 close to the inner periphery, the inner peripheral sealing body 7 has at least one lip 71, and the lip 71 abuts against the inner peripheral surface of the bearing inner ring 2.

Specifically, the inner peripheral sealing body 7 is provided between the dust cover 3 and the bearing inner periphery 2, ensuring the sealing performance between the dust cover 3 and the bearing inner periphery 2.

As an alternative embodiment, a sealing groove 11 is provided at a contact position between the bearing outer ring 1 and the dust cover 3, an end surface of the sealing groove 11 is formed on the radial side wall, and a bending portion adapted to the structure of the sealing groove 11 is provided on the dust cover 3 corresponding to the position of the sealing groove 11.

Specifically, the sealing groove 11 of the bearing outer ring 1 is abutted with the bending part of the dust cover 3 to form a sealing structure, and the sealing body 6 is added between the end face of the sealing groove 11 of the sealing structure and the dust cover 3, so that the sealing performance of the sealing part is greatly improved, and external pollutants are prevented from entering the bearing through the sealing part.

As an alternative embodiment, the sealing body is a rubber sealing body.

Specifically, the outer circumference sealing body 6 and the inner circumference sealing body 7 are all rubber sealing bodies, so that flexible contact is formed between the dust cover 3 and the bearing outer circumference 1 and between the dust cover and the bearing outer circumference 2, and sealing performance of corresponding connection positions is guaranteed.

As an alternative embodiment, the sealing body is bonded to the dust cap 3.

Specifically, the sealing body is compounded on the dust cover 3 in an adhesive mode, and is integrally supported with the dust cover 3, so that the manufacturing and the installation of the sealing body are facilitated.

As an alternative embodiment, the inner surface of the sealing groove 11 is provided with a knurled surface.

Specifically, the knurling is arranged on the inner surface of the sealing groove 11 on the bearing outer ring 1, so that the contact friction force between the bearing outer ring and the dust cover 3 is increased, and after the peripheral sealing body 6 is added, the peripheral sealing body 6 is in contact with the knurling surface more tightly, and a good dust sealing effect can be achieved.

As an alternative embodiment, the outer peripheral sealing body 6 and the inner peripheral sealing body 7 are provided separately or integrally.

Specifically, the outer peripheral sealing body 6 and the inner peripheral sealing body 7 jointly act, so that the sealing performance of the end part of the bearing is guaranteed, and the bearing can be arranged in a split type or an integrated type.

As an alternative embodiment, it further comprises rolling bodies 5 held by a cage 4 and arranged between the bearing outer race 1 and the bearing inner race 2, and the bearing sealing structure is symmetrically installed at two end positions between the bearing outer race 1 and the bearing inner race 2.

Specifically, the bearing sealing structures are arranged at the two ends of the bearing, so that the sealing performance of the end part of the bearing is improved, and external pollutants are prevented from entering the bearing through the bearing sealing structures.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the azimuth or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a bearing seal structure, its characterized in that is located the shield inboard of bearing outer lane and bearing inner race and is provided with the sealing body, the sealing body includes the periphery sealing body, the periphery sealing body sets up the shield is close to one side of periphery, is located between the shield and the radial lateral wall of bearing outer lane.

2. The bearing seal structure according to claim 1, wherein the seal body further includes an inner peripheral seal body provided on a side of the dust cover near an inner periphery, the inner peripheral seal body having at least one lip portion abutting an inner peripheral surface of the bearing inner ring.

3. The bearing seal structure according to claim 2, wherein a seal groove is provided at a position where the bearing outer race abuts against the dust cover, an end surface of the seal groove is formed on the radial side wall, and a bending portion adapted to the seal groove structure is provided on the dust cover corresponding to the seal groove position.

4. A bearing seal arrangement according to claim 3, wherein the seal is a rubber seal.

5. The bearing seal arrangement of claim 4 wherein said seal body is bonded to said dust cap.

6. The bearing seal arrangement of claim 5 wherein said seal groove inner surface is provided as a knurled surface.

7. The bearing seal structure according to any one of claims 2 to 6, wherein the outer peripheral seal body and the inner peripheral seal body are provided separately or integrally.

8. A bearing comprising a bearing seal arrangement according to any one of claims 1 to 7.

9. The bearing of claim 8, further comprising cage-retained rolling elements disposed between the bearing outer race and the bearing inner race, the bearing seal structure being symmetrically mounted at two end locations between the bearing outer race and the bearing inner race.