Waterproof hub bearing

Abstract

The utility model relates to the technical field of hub bearings, in particular to a waterproof hub bearing which comprises a bearing main body used for bearing and providing accurate guidance for rotation of a hub, the bearing main body comprises an inner ring, an outer ring and balls, the outer ring is arranged on the outer side of the inner ring, a plurality of balls are arranged in the inner ring and the outer ring, and the inner ring and the outer ring are connected with the bearing main body. Waterproof assemblies are arranged above and below the inner ring and the outer ring, each waterproof assembly comprises a fixing ring, a rubber sleeve, an elastic block and a hole, the fixing rings are arranged above and below the bearing main body, the rubber sleeves are fixedly connected to the outer sides of the fixing rings, and a plurality of holes are formed in the rubber sleeves; according to the waterproof bearing, the overall waterproof effect is improved through the waterproof assemblies arranged on the upper side and the lower side of the bearing body, and the waterproof assemblies which are used for a long time can be replaced through the installation assemblies arranged on the waterproof assemblies.

Description

Technical Field

[0001] The utility model relates to the technical field of hub bearings, and specifically relates to a waterproof hub bearing. Background Art

[0002] The hub bearing is one of the key components of an automobile. Its main function is to bear the weight and provide precise guidance for the rotation of the hub, which requires it to bear not only axial loads but also radial loads. Traditional automobile wheel bearings are composed of two sets of tapered roller bearings or ball bearings combined.

[0003] When the common hub bearings on the market do waterproofing, a rubber ring is usually set on the outer side of the gap between the inner and outer rings of the hub. Since the rubber ring itself is solid and has limited deformation, although it has a good sealing effect, the waterproofing effect gradually deteriorates after the elasticity decreases. Therefore, a waterproof hub bearing is proposed for the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waterproof hub bearing to solve the problem that the waterproofing effect deteriorates after the limited deformation and reduced elasticity of the rubber ring.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A waterproof hub bearing includes a bearing body for bearing weight and providing precise guidance for the rotation of the hub. The bearing body includes an inner ring, an outer ring and rolling balls. An outer ring is arranged on the outside of the inner ring. A number of rolling balls are arranged inside the inner ring and the outer ring. Waterproof components are arranged above and below the inner ring and the outer ring. The waterproof component includes a fixing ring, a rubber sleeve, an elastic block and a hole. Fixing rings are arranged above and below the bearing body. A rubber sleeve is fixedly connected to the outside of the fixing ring. A number of holes are opened inside the rubber sleeve. Elastic blocks with an elliptical cross-section are arranged inside the holes opened inside the rubber sleeve.

[0007] Preferably, an installation component is arranged on one side of the waterproof component. The installation component includes a positioning post and a reed.

[0008] Preferably, a number of positioning posts with two depressions on the outside are fixedly connected to the bottom of the fixing ring. One end of the positioning post penetrates through the rubber sleeve.

[0009] Preferably, a number of grooves are opened inside the outer ring. One end of a reed with a convex shape is arranged inside the grooves opened inside the outer ring.

[0010] Preferably, the depression on the outside of the positioning post is in close fit with the convex part of the reed. Two reeds are arranged as a group on the left and right sides of each positioning post.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, through the provided bearing body, inner ring, outer ring, rolling balls, waterproof component, fixing ring, rubber sleeve, elastic block and holes, the rubber sleeve on the outer side of the fixing ring is closely attached to the outer side of the joint between the inner ring and the outer ring, effectively waterproofing the joint. Elastic blocks are placed in the grooves formed in the rubber sleeve and used in cooperation with the rubber sleeve, further increasing the elastic deformation amount of the rubber sleeve, thereby increasing the elasticity of the overall waterproof component and achieving the purpose of improving the waterproof performance. Through the provided grooves, installation components, positioning columns and reed pieces, the positioning columns are fixedly connected to the fixing ring, increasing the stability effect of the positioning columns. The user inserts the positioning columns into the grooves formed in the outer ring and fixes them by the reed pieces against the depressions of the positioning columns, thereby effectively fixing the overall waterproof component and facilitating the disassembly and installation of the waterproof component. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic cross-sectional view of the outer ring of the present utility model;

[0015] Figure 3 is of the present utility model Figure 2 schematic diagram of the structure at location A.

[0016] In the figure: 1, bearing body; 11, inner ring; 12, outer ring; 13, rolling balls; 2, waterproof component; 21, fixing ring; 22, rubber sleeve; 23, elastic block; 24, holes; 3, groove; 4, installation component; 41, positioning column; 42, reed piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is merely for the convenience of differentiating the corresponding components. Without additional declaration, the above terms have no special meaning, and thus should not be construed as a limitation on the protection scope of the present invention.

[0020] Please refer to Figures 1 - 3 , the present utility model provides a technical solution:

[0021] A waterproof hub bearing includes a bearing body 1 for bearing weight and providing precise guidance for the rotation of the hub. The bearing body 1 includes an inner ring 11, an outer ring 12, and rolling balls 13. The outer ring 12 is provided on the outside of the inner ring 11, and a number of rolling balls 13 are provided inside the inner ring 11 and the outer ring 12. Waterproof components 2 are provided above and below the inner ring 11 and the outer ring 12. The waterproof components 2 include fixing rings 21, rubber sleeves 22, elastic blocks 23, and holes 24. Fixing rings 21 are provided above and below the bearing body 1. A rubber sleeve 22 is fixedly connected to the outside of the fixing ring 21. A number of holes 24 are formed inside the rubber sleeve 22. Elastic blocks 23 with an elliptical cross-section are provided inside the holes 24 formed inside the rubber sleeve 22. By providing the waterproof components 2 on the upper and lower sides of the bearing body 1, the overall waterproof effect is improved. By providing an installation component 4 for the waterproof components 2, the waterproof components 2 that have been used for a long time can be replaced.

[0022] An installation component 4 is provided on one side of the waterproof component 2. The installation component 4 includes positioning posts 41 and reed pieces 42, which facilitate the installation of the waterproof component 2; a number of positioning posts 41 with two depressions on the outside are fixedly connected to the bottom of the fixing ring 21. One end of the positioning post 41 penetrates through the rubber sleeve 22, so that the rubber sleeve 22 has a positioning effect during installation; a number of grooves 3 are formed inside the outer ring 12, and reed pieces 42 with one end protruding are provided inside the grooves 3 formed inside the outer ring 12, which facilitate the fixing after the positioning posts 41 are inserted; the depressions on the outside of the positioning posts 41 are closely attached to the protruding parts of the reed pieces 42. Two reed pieces 42 are provided as a group on the left and right sides of each positioning post 41, which increases the stability effect after the positioning posts 41 are inserted.

[0023] Working process: When the waterproof hub bearing is in use, first place the bearing body 1 in a suitable position and install the waterproof component 2. The user holds the rubber sleeve 22 of the waterproof component 2 and places it directly above the bearing body 1. Align the positioning post 41 with the groove 3 opened on the outer ring 12 and insert the positioning post 41 into the groove 3 in sequence. During the insertion process, when the positioning post 41 touches the reed 42, the reed 42 deforms under force. When inserted into the appropriate position, the protruding part of the reed 42 fits tightly with the concave part of the positioning post 41 to simply fix the positioning post 41. At this time, the upper waterproof component 2 is installed. Install the lower waterproof component 2 in the same way. Since several grooves 3 are opened in the rubber sleeve 22 of the waterproof component 2 and elastic blocks 23 with an elliptical cross-section are provided in the grooves 3, the overall elasticity of the rubber sleeve 22 is increased, thereby improving the waterproof effect. By providing the waterproof components 2 on both the upper and lower sides of the bearing body 1, the overall waterproof effect is improved. Through the installation component 4 provided on the waterproof component 2, the waterproof component 2 that has been used for a long time can be replaced.

[0024] The content not detailed in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in this utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here.

[0025] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof hub bearing, comprising a bearing body (1) for bearing weight and providing precise guidance for the rotation of the hub, characterized in that: The bearing body (1) includes an inner ring (11), an outer ring (12) and rolling balls (13). The outer ring (12) is provided on the outside of the inner ring (11). A number of rolling balls (13) are provided inside the inner ring (11) and the outer ring (12). Waterproof components (2) are provided above and below the inner ring (11) and the outer ring (12). The waterproof component (2) includes a fixing ring (21), a rubber sleeve (22), an elastic block (23) and a hole (24). Fixing rings (21) are provided above and below the bearing body (1). A rubber sleeve (22) is fixedly connected to the outside of the fixing ring (21). A number of holes (24) are formed inside the rubber sleeve (22). Elastic blocks (23) with an elliptical cross-section are provided inside the holes (24) formed inside the rubber sleeve (22).

2. The waterproof hub bearing according to claim 1, wherein: An installation component (4) is provided on one side of the waterproof component (2). The installation component (4) includes a positioning post (41) and a reed (42).

3. The waterproof hub bearing according to claim 1, wherein: A number of positioning posts (41) with two depressions on the outside are fixedly connected to the bottom of the fixing ring (21). One end of the positioning post (41) penetrates through the rubber sleeve (22).

4. A waterproof hub bearing according to claim 1, wherein: A number of grooves (3) are formed inside the outer ring (12). Reeds (42) with one end protruding are provided inside the grooves (3) formed inside the outer ring (12).

5. A waterproof hub bearing according to claim 2, characterized in that: The depressed part on the outside of the positioning post (41) is in close fit with the protruding part of the reed (42). Two reeds (42) are provided as a group on the left and right sides of each positioning post (41).

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