Bearing end cover oil seal structure

Abstract

The utility model discloses a bearing end cover oil seal structure, and relates to the technical field of oil seals. Comprising an oil seal body, the oil seal body comprises an oil seal framework, a first sealing washer is arranged in the oil seal framework, a second sealing washer is arranged on one side of the first sealing washer, a first arc-shaped protrusion is arranged on the oil seal framework, a second arc-shaped protrusion is arranged on the first sealing washer, and a third arc-shaped protrusion is arranged on the second sealing washer. One side of the first arc-shaped protrusion is attached to one side of the second arc-shaped protrusion, and one side of the second arc-shaped protrusion is attached to one side of the third arc-shaped protrusion. The first arc-shaped protrusion can be used as a reinforcing rib to reinforce the oil seal framework, the overall strength of the oil seal body is greatly improved, the strength of the oil seal body is improved, products meeting the design strength can be machined through lighter and thinner plates, the manufacturing cost is saved, waste is reduced, and due to the fact that the structure is simplified, the installation steps are reduced, and the operation difficulty is reduced, the production efficiency is improved. The mounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seals, in particular to a bearing end cover oil seal structure. Background Art

[0002] Oil seal is the customary name for general seals. Simply put, it is a seal for lubricating oil. It is a mechanical component used to seal grease (oil is the most common liquid substance in the transmission system, and also refers to general liquid substances). It isolates the parts that need lubrication in the transmission components from the output components to prevent the lubricating oil from leaking. Seals for static and dynamic seals are called oil seals, which are mostly used in automobiles, agricultural machinery, and bearing end covers. Different machines require different types of oil seals.

[0003] Existing bearing end cover seals mostly adopt a flat plate design. This type of bearing end cover oil seal has low strength and needs to be improved by increasing the frame thickness or designing reinforcing ribs. It is difficult to process and install, and the use effect is not ideal. Utility Model Content

[0004] The utility model provides a bearing end cover oil seal structure to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a bearing end cover oil seal structure, comprising an oil seal body, the oil seal body comprising an oil seal skeleton, a sealing gasket 1 being arranged inside the oil seal skeleton, a sealing gasket 2 being arranged on one side of the sealing gasket 1, an arc-shaped protrusion 1 being arranged on the oil seal skeleton, an arc-shaped protrusion 2 being arranged on the sealing gasket 1, and an arc-shaped protrusion 3 being arranged on the sealing gasket 2.

[0006] Furthermore, one side of the arc-shaped protrusion one fits with one side of the arc-shaped protrusion two, and one side of the arc-shaped protrusion two fits with one side of the arc-shaped protrusion three.

[0007] Furthermore, the inner hole diameter of the sealing gasket 1 is smaller than the inner hole diameter of the oil seal skeleton.

[0008] Furthermore, a tapered portion is provided inside the second sealing gasket.

[0009] Furthermore, the inner hole diameter of the tapered portion is larger than the inner hole diameter of the sealing gasket 1 and smaller than the inner hole diameter of the oil seal skeleton.

[0010] Furthermore, an arc-shaped positioning portion is provided on one side of the oil seal skeleton.

[0011] Furthermore, the inner hole diameter of the arc-shaped positioning portion is larger than the inner hole diameters of the oil seal skeleton, the sealing gasket 1 and the tapered portion.

[0012] Compared with the prior art, the present invention provides a bearing end cover oil seal structure with the following features:

[0013] Beneficial effects:

[0014] The bearing end cover oil seal structure has an arc-shaped protrusion which can be used as a reinforcing rib to strengthen the oil seal skeleton, greatly improving the overall strength of the oil seal body. The strength of the oil seal body is improved, and products that meet the design strength can be processed with lighter and thinner sheet materials, saving manufacturing costs and reducing waste. Due to the streamlined structure, the installation steps are reduced, the operation difficulty is reduced, and the installation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a side view of the structure of the utility model;

[0017] Figure 3 It is a structural cross-sectional view of the present utility model.

[0018] In the figure: 1. Oil seal body; 11. Oil seal frame; 12. Sealing gasket 1; 13. Sealing gasket 2; 14. Arc-shaped positioning portion; 15. Arc-shaped protrusion 1; 16. Arc-shaped protrusion 2; 17. Arc-shaped protrusion 3; 18. Conical portion. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 The utility model discloses a bearing end cover oil seal structure, including an oil seal body 1, the oil seal body 1 includes an oil seal skeleton 11, a sealing gasket 12 is arranged inside the oil seal skeleton 11, a sealing gasket 2 13 is arranged on one side of the sealing gasket 12, an arc-shaped protrusion 15 is provided on the oil seal skeleton 11, an arc-shaped protrusion 2 16 is provided on the sealing gasket 12, and an arc-shaped protrusion 3 17 is provided on the sealing gasket 2 13. The arc-shaped protrusion 15 is located in the middle section of the oil seal skeleton 11. The bearing end cover oil seal structure is composed of the oil seal skeleton 11 plus the sealing gasket 12 and the sealing gasket 2 13, and is used for sealing the bearing end cover. The sealing gasket 12 and the sealing gasket 2 13 are both made of wear-resistant rubber material.

[0021] Specifically, one side of the arc-shaped protrusion 15 is in contact with one side of the arc-shaped protrusion 2 16, and one side of the arc-shaped protrusion 2 16 is in contact with one side of the arc-shaped protrusion 3 17. The setting of the arc-shaped protrusion 15 can be used as a reinforcing rib to strengthen the oil seal skeleton 11, greatly improving the overall strength of the oil seal body 1. The strength of the oil seal body 1 is improved, and a product that meets the design strength can be processed with thinner sheet material, saving manufacturing costs and reducing waste.

[0022] Specifically, the inner hole diameter of the sealing gasket 12 is smaller than the inner hole diameter of the oil seal skeleton 11. This design avoids the oil seal skeleton 11 from contacting the shaft surface.

[0023] Specifically, a tapered portion 18 is provided inside the second sealing gasket 13 , and the tapered portion 18 cooperates with the first sealing gasket 12 to contact the shaft, thereby achieving double-pass sealing.

[0024] Specifically, the inner hole diameter of the tapered portion 18 is larger than the inner hole diameter of the sealing gasket 12 and smaller than the inner hole diameter of the oil seal skeleton 11. After the inner hole of the sealing gasket 12 is connected to the shaft sleeve, it will be expanded into a cone shape, so that the tapered portion 18 can contact the shaft surface. Lubricating grease is filled between the tapered portion 18 and the inner hole of the sealing gasket 12 to increase lubricity.

[0025] Specifically, an arc-shaped positioning portion 14 is provided on one side of the oil seal skeleton 11. The inner hole diameter of the arc-shaped positioning portion 14 is larger than the inner hole diameters of the oil seal skeleton 11, the sealing gasket 12 and the tapered portion 18. The arc-shaped positioning portion 14 is used to limit the assembly position of the oil seal skeleton 11, making the installation with the bearing end cover faster and more stable.

[0026] In summary, the bearing end cover oil seal structure, the setting of the arc-shaped protrusion 15 can be used as a reinforcing rib to strengthen the oil seal skeleton 11, greatly improving the overall strength of the oil seal body 1, and the strength of the oil seal body 1 is improved. Products that meet the design strength can be processed with lighter and thinner sheet materials, saving manufacturing costs and reducing waste. Due to the streamlined structure, the installation steps are reduced, the operation difficulty is reduced, and the installation efficiency is improved.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing end cover oil seal structure, comprising an oil seal body (1), characterized in that: The oil seal body (1) comprises an oil seal skeleton (11), a sealing gasket 1 (12) is provided inside the oil seal skeleton (11), a sealing gasket 2 (13) is provided on one side of the sealing gasket 1 (12), an arc-shaped protrusion 1 (15) is provided on the oil seal skeleton (11), an arc-shaped protrusion 2 (16) is provided on the sealing gasket 1 (12), and an arc-shaped protrusion 3 (17) is provided on the sealing gasket 2 (13).

2. The bearing end cover oil seal structure according to claim 1, characterized in that: One side of the arc-shaped protrusion 1 (15) is in contact with one side of the arc-shaped protrusion 2 (16), and one side of the arc-shaped protrusion 2 (16) is in contact with one side of the arc-shaped protrusion 3 (17).

3. The bearing end cover oil seal structure according to claim 1, characterized in that: The inner hole diameter of the sealing gasket (12) is smaller than the inner hole diameter of the oil seal skeleton (11).

4. The bearing end cover oil seal structure according to claim 1, characterized in that: A tapered portion (18) is provided inside the second sealing gasket (13).

5. The bearing end cover oil seal structure according to claim 4, characterized in that: The inner hole diameter of the tapered portion (18) is larger than the inner hole diameter of the sealing gasket (12) and smaller than the inner hole diameter of the oil seal skeleton (11).

6. The bearing end cover oil seal structure according to claim 1, characterized in that: An arc-shaped positioning portion (14) is provided on one side of the oil seal skeleton (11).

7. The bearing end cover oil seal structure according to claim 6, characterized in that: The inner hole diameter of the arc-shaped positioning portion (14) is larger than the inner hole diameters of the oil seal skeleton (11), the sealing gasket (12) and the tapered portion (18).

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