High-strength rubber coating structure of bearing sealing ring

Abstract

The utility model relates to a bearing structure, in particular to a high-strength rubber coating structure of a bearing sealing ring. The bearing structurally comprises an inner ring and an outer ring, a circle of steel balls are arranged between the inner ring and the outer ring, a retainer is arranged on the outer sides of the steel balls, a sealing ring is further arranged between the inner ring and the outer ring on the two sides of the retainer through a framework, and rubber coating holes are formed in the framework. And the sealing ring is bonded with the plane of the framework, and part of rubber of the sealing ring permeates into the rubber coating hole and is bonded with the rubber coating hole. According to the high-strength rubber coating structure of the bearing sealing ring, the holes are formed in the surface of the framework, so that part of rubber permeates into the holes when the sealing ring is manufactured through vulcanization, the plane of the framework and the rubber are bonded in the radial direction and the axial direction, the bonding strength is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to a bearing structure, in particular to a high-strength rubber-encapsulated structure of a bearing sealing ring. Background Art

[0002] High damping bearings are widely used, and are often used in automobile tailgate struts, large bus electric doors, brake damping buffers, etc. However, when high damping bearings are working, the lip of the seal ring will be subjected to large torsional shear stress in the circumferential direction. Under the action of this torsional shear stress for a long time, the rubber and frame plane bonding will be prematurely separated and fail, which will lead to the failure of the entire component.

[0003] In order to solve this problem in the prior art, different types of adhesives can only be replaced, but the effect is not good. Summary of the invention

[0004] In order to solve the problems of the prior art, the utility model provides a high-strength rubber-coated structure for a bearing sealing ring, which is formed by punching holes on the surface of a skeleton so that a portion of the rubber penetrates into the holes when the sealing ring is vulcanized. In this way, the skeleton plane has both radial and axial bonding with the rubber, thereby improving the bonding strength and extending the service life.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A high-strength rubber-coated structure for a bearing sealing ring comprises an inner ring and an outer ring, a circle of steel balls are arranged between the inner ring and the outer ring, a retaining frame is arranged outside the steel balls, sealing rings are also arranged between the inner ring and the outer ring on both sides of the retaining frame through a frame, and rubber-coated holes are arranged on the frame, the sealing ring is bonded to the plane of the frame and part of the rubber of the sealing ring penetrates into the rubber-coated holes and is bonded.

[0007] Preferably, there are at least two encapsulation holes.

[0008] Preferably, the encapsulated holes are evenly distributed on the frame at 360°.

[0009] Preferably, the diameter of the encapsulated hole is 1.2 mm.

[0010] Preferably, the depth of the rubber infiltration into the rubber-coated holes is 0.25 mm.

[0011] The beneficial effects brought by the technical solution provided by the utility model are:

[0012] The utility model punches holes on the surface of the skeleton, and then during vulcanization to make the sealing ring, a portion of the rubber penetrates into the hole, and the penetration depth is about half of the thickness of the skeleton plate (it is not easy to penetrate the entire hole into the rubber, which is easy to overflow and affect the appearance of the entire sealing ring). In this way, the skeleton plane has both radial and axial adhesion with the rubber. After repeated tests, under the double adhesion (radial adhesion and axial adhesion), the rubber and the skeleton are not separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-strength rubber-encapsulated structure of a bearing seal ring of the utility model;

[0015] Figure 2 This is a schematic diagram of the skeleton structure of a high-strength rubber-encapsulated structure of a bearing seal ring of the utility model;

[0016] Figure 3 for Figure 2 CC structural cross-sectional view. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Embodiment 1:

[0019] As attached Figure 1 As shown, a high-strength rubber-coated structure of a bearing sealing ring of the present embodiment comprises an inner ring 1 and an outer ring 2, a circle of steel balls 3 are arranged between the inner ring 1 and the outer ring 2, a retaining frame 4 is arranged on the outside of the steel balls 3, and a sealing ring 6 is also arranged between the inner ring 1 and the outer ring 2 on both sides of the retaining frame 4 through a skeleton 5, and a rubber-coated hole 7 is arranged on the skeleton 5, the sealing ring 6 is bonded to the skeleton 5 plane and part of the rubber of the sealing ring 6 penetrates into the rubber-coated hole 7 and is bonded.

[0020] As attached Figure 2 , 3 As shown, the number of rubber-coated holes in this embodiment is 2. If the damping value is large, the number of holes is increased, and the holes are arranged evenly distributed at 360°.

[0021] The diameter of the rubber hole 7 is 1.2 mm, and the depth of the rubber infiltrated into the rubber hole 7 is 0.25 mm.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength rubber-coated structure for a bearing seal ring, comprising an inner ring and an outer ring, a circle of steel balls arranged between the inner ring and the outer ring, a retaining frame arranged outside the steel balls, and a sealing ring arranged between the inner ring and the outer ring on both sides of the retaining frame through a frame, characterized in that: The frame is provided with a rubber-coated hole, the sealing ring is bonded to the frame plane, and part of the rubber of the sealing ring penetrates into the rubber-coated hole and is bonded.

2. A high-strength rubber-encapsulated structure for a bearing seal ring according to claim 1, characterized in that: The number of the encapsulated holes is at least 2.

3. A high-strength rubber-encapsulated structure for a bearing seal ring according to claim 1, characterized in that: The rubber-coated holes are evenly distributed on the frame at 360 degrees.

4. A high-strength rubber-encapsulated structure for a bearing seal ring according to claim 1, characterized in that: The diameter of the rubber-encapsulated hole is 1.2 mm.

5. The high-strength rubber-encapsulated structure of a bearing seal ring according to claim 1, characterized in that: The depth of the rubber infiltrated into the rubber-coated hole is 0.25 mm.

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