CN220505596U - Deep groove ball bearing - Google Patents

Abstract

The utility model provides a deep groove ball bearing, and belongs to the technical field of machinery. It has solved the poor problem of current bearing leakproofness. The deep groove ball bearing comprises an outer ring, an inner ring, rolling balls and a retainer, wherein two dustproof covers are arranged between the outer ring and the inner ring in a matched mode, the dustproof covers are respectively arranged at two ends between the outer ring and the inner ring, the inner ends of the dustproof covers are provided with sealing parts protruding outwards axially, the outer layers and the inner layers of the sealing parts are respectively provided with sealing rings which respectively form sealing effects with the outer ring and the inner ring, the inner walls of the outer ring and the outer wall of the inner ring are respectively provided with outer rings matched with the sealing rings, matching annular grooves which are used for the outer rings to enter and are in a V shape are formed in the sealing rings, mounting annular grooves used for mounting the sealing rings are formed in the sealing parts, two sealing sections are formed by the sealing rings through the matching annular grooves, and the two corresponding sealing sections penetrate out of the mounting annular grooves and are sealed with the outer ring or the inner ring. The utility model has the advantages of high sealing performance and difficult falling of the dust cover.

Description

Deep groove ball bearing

Technical Field

The utility model belongs to the technical field of machinery, and relates to a bearing, in particular to a deep groove ball bearing.

Background

The bearing is generally composed of an outer ring, an inner ring and rolling balls arranged between the inner ring and the outer ring, and then the stability of the movement of the bearing is achieved through a retainer.

However, the existing dust cover has a simple structure, poor sealing effect and easy falling phenomenon under long-time working, and influences use.

Disclosure of Invention

The present utility model has been made in view of the above problems occurring in the prior art, and an object of the present utility model is to provide a deep groove ball bearing which has high sealability and is prevented from falling off.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a deep groove ball bearing, includes outer lane, inner circle, rolling ball and holder, its characterized in that, outer lane and inner circle between the cooperation be provided with the shield, the shield have two, be located the both ends position department between outer lane and the inner circle respectively, the shield inner have the sealing part of axial evagination, sealing part skin and inlayer all be equipped with respectively with outer lane and inner circle between form sealed effect's sealing washer, outer lane inner wall and inner circle outer wall on all have the evagination circle with sealing washer complex, the sealing washer on set up and supply evagination circle to get into and be V font cooperation annular, sealing part on have the installation annular that supplies the sealing washer to install, through cooperation annular makes the sealing washer form two seal sections, two correspond the seal section wears out the installation annular and seals with outer lane or inner circle mutually.

In the deep groove ball bearing, the dust cover is in clearance fit with the outer ring.

In the deep groove ball bearing, the dust cover is in clearance fit with the inner ring.

Compared with the prior art, the deep groove ball bearing has the advantage of good sealing performance.

Drawings

Fig. 1 is a schematic sectional view of the deep groove ball bearing.

Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.

In the figure, 1, an outer ring; 2. an inner ring; 3. a dust cover; 4. a sealing part; 5. a seal ring; 6. an outer convex ring; 7. matching with the ring groove; 8. installing a ring groove; 9. and a sealing section.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 and 2, the deep groove ball bearing comprises an outer ring 1, an inner ring 2, rolling balls and a retainer, wherein a dust cover 3 is matched between the outer ring 1 and the inner ring 2, two dust covers 3 are respectively arranged at two ends between the outer ring 1 and the inner ring 2, the inner end of each dust cover 3 is provided with a sealing part 4 protruding outwards in the axial direction, the outer layer and the inner layer of each sealing part 4 are respectively provided with a sealing ring 5 forming a sealing effect with the outer ring 1 and the inner ring 2, the inner wall of the outer ring 1 and the outer wall of the inner ring 2 are respectively provided with an outer ring 6 matched with the sealing ring 5, the sealing rings 5 are provided with a V-shaped matching ring groove 7 for the outer ring 6 to enter, the sealing parts 4 are provided with mounting ring grooves 8 for the sealing rings 5 to form two sealing sections 9 through the matching ring grooves 7, the two corresponding sealing sections 9 penetrate through the mounting ring grooves 8 and are sealed with the outer ring 1 or the inner ring 2, and when the bearing rotates at high speed, the outer ring 6 contacts with the sealing sections 9 under the action of centrifugal force, and the outer ends of the sealing sections 9 form two contact sealing points under the action of the inclined surfaces of the matching ring grooves 7; if the service life is long, the sealing ring 5 is convenient to detach and replace.

During installation, the dust cover 3 is firstly installed on the outer convex ring 6 of the outer ring 1, and then is connected with the inner ring 2 to achieve the installation, so that the anti-falling effect is achieved.

Preferably, the dust cover 3 is in clearance fit with the outer ring 1; the dust cap 3 is in clearance fit with the inner ring 2.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the terms of the outer ring 1, the inner ring 2, the dust cap 3, the seal portion 4, the seal ring 5, the outer ring 6, the mating ring groove 7, the mounting ring groove 8, the seal segment 9, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (3)

1. The utility model provides a deep groove ball bearing, includes outer lane (1), inner circle (2), rolling ball and holder, its characterized in that, outer lane (1) and inner circle (2) between the cooperation be provided with shield (3), shield (3) have two, be located the both ends position department between outer lane (1) and inner circle (2) respectively, shield (3) inner have sealing portion (4) of axial evagination, sealing portion (4) skin and inlayer all be equipped with respectively with outer lane (1) and inner circle (2) between form sealing washer (5) of sealed effect, outer lane (1) inner wall and inner circle (2) outer wall on all have with sealing washer (5) complex outer lane (6), sealing washer (5) on offer and supply evagination circle (6) to get into and be V-shaped cooperation annular (7), sealing portion (4) on have and install annular (8) that supplies sealing washer (5) to install, through cooperation annular (7) make sealing washer (5) form two seal sections (9), two seal sections (9) and seal ring (2) are worn out with outer lane (1).

2. A deep groove ball bearing according to claim 1, characterized in that the dust cap (3) is in a clearance fit with the outer ring (1).

3. A deep groove ball bearing according to claim 1, characterized in that the dust cap (3) is in a clearance fit with the inner ring (2).