Wear-resistant bearing rubber sealing ring

Abstract

The utility model discloses a wear-resistant bearing rubber sealing ring, and relates to the technical field of sealing elements. The sealing ring comprises a rubber ring, wherein a sealing lip edge and a dustproof lip edge are respectively mounted on the inner side of the rubber ring; a toughening assembly is arranged in the rubber ring, the toughening assembly comprises a metal ring, the metal ring is installed in the rubber ring, an installation groove is formed in one side of the rubber ring, and an elastic ring is installed in the installation groove. Through the arrangement of the toughening assembly, when the rubber ring is installed between the bearing and a main shaft, the rubber ring can be installed on the sealing side of the bearing through the sealing lip edge and installed on the outer side of the bearing through the dustproof lip edge, the grouping design effect is achieved, two sets of different sealing materials are adopted for oil liquid blocking and dust blocking, and the sealing effect is good. Meanwhile, the toughness of the rubber ring is improved through the metal ring, so that the inner side of the rubber ring is always attached to the main shaft, and the sealing effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of seals, and particularly relates to a wear-resistant bearing rubber seal ring. Background Technique

[0002] A bearing rubber seal ring is a sealing device used for bearings. Its main function is to prevent the leakage of lubricating oil or grease, and at the same time prevent dust, moisture and other pollutants from entering the bearing interior. It is usually made of rubber materials such as fluororubber, nitrile rubber or silica gel, and has good elasticity, wear resistance and chemical stability. The design of the rubber seal ring usually includes a sealing lip in contact with the bearing to ensure the effectiveness of the seal. The internal structure of the seal ring may include a metal skeleton to increase its strength and durability.

[0003] During the use of the current bearing rubber seal ring, the inner side of the rubber ring is subject to greater wear. When relying on the elastic action of the seal ring structure to make the sealing lip fit with the main shaft, its rubber elastic action will also decay due to the influence of long-term high temperature, resulting in a significant decline in the sealing performance of the seal ring.

[0004] Therefore, we provide a wear-resistant bearing rubber seal ring to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wear-resistant bearing rubber seal ring. By setting a toughening component, it solves the problem that the bearing rubber seal ring in the prior art lacks an elastic support structure, and when the elastic potential energy of the seal ring decays, the sealing performance of the seal ring will also decrease accordingly.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a wear-resistant bearing rubber seal ring, which includes a rubber ring. A sealing lip and a dust-proof lip are respectively installed on the inner side of the rubber ring;

[0008] A toughening component is arranged inside the rubber ring. The toughening component includes a metal ring. The metal ring is installed inside the rubber ring. An installation groove is opened on one side of the rubber ring, and an elastic ring is installed inside the installation groove.

[0009] The utility model is further arranged such that a toughening spring is fixedly connected to the surface of the elastic ring, and the head and tail of the toughening spring are fixed.

[0010] The utility model is further arranged such that an auxiliary lip is fixedly connected to the top of the sealing lip on the inner side of the rubber ring, and an extension lip is fixedly connected to the bottom of the sealing lip on the inner side of the rubber ring.

[0011] The present utility model is further configured such that the metal ring is made of stainless steel, and the cross-section of the metal ring is in a Z shape.

[0012] The present utility model is further configured such that the surface of the elastic ring is in contact with the inner wall of the rubber ring, and the elastic ring and the sealing lip are at the same horizontal position.

[0013] The present utility model is further configured such that a fixing groove is formed on the other side of the rubber ring, and an auxiliary ring is installed inside the fixing groove.

[0014] The present utility model is further configured such that the number of the auxiliary rings is two, and the outer diameter of the rubber ring is 8 cm.

[0015] The present utility model has the following beneficial effects:

[0016] Through the setting of the toughening component, when the rubber ring is installed between the bearing and the main shaft, the sealing lip is installed on the sealing side of the bearing, and the dust-proof lip is installed on the outer side of the bearing, playing a role of grouped design. Two different sealing materials are used for oil barrier and dust barrier, which can effectively improve the sealing effect of the bearing. At the same time, the toughness of the rubber ring is increased by the metal ring, so that the inner side of the rubber ring is always in contact with the main shaft, improving the sealing effect.

[0017] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below.

[0019] Figure 1 FIG. 1 is a three-dimensional structure diagram of a wear-resistant bearing rubber seal ring;

[0020] Figure 2 FIG. 2 is a partial cross-sectional view of the rubber ring in a wear-resistant bearing rubber seal ring;

[0021] Figure 3 FIG. 3 is a separation schematic diagram of the elastic ring and the toughening spring in a wear-resistant bearing rubber seal ring;

[0022] Figure 4 FIG. 4 is a cross-sectional structure diagram of a wear-resistant bearing rubber seal ring.

[0023] In the drawings: 1. Rubber ring; 2. Sealing lip; 3. Dust-proof lip; 4. Metal ring; 5. Installation groove; 6. Elastic ring; 7. Toughening spring; 8. Auxiliary lip; 9. Extended lip; 10. Fixing groove; 11. Auxiliary ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be described in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Specific Embodiment 1

[0026] Please refer to Figures 1-4 , the present invention is a wear-resistant bearing rubber seal ring, which includes a rubber ring 1. A sealing lip 2 and a dust-proof lip 3 are respectively installed inside the rubber ring 1; a toughening component is arranged inside the rubber ring 1. The toughening component includes a metal ring 4. The metal ring 4 is installed inside the rubber ring 1. An installation groove 5 is opened on one side of the rubber ring 1, and an elastic ring 6 is installed inside the installation groove 5.

[0027] Specifically: The elastic ring 6 is installed in the installation groove 5. A toughening spring 7 is installed on the surface of the elastic ring 6. Through the elastic action of the toughening spring 7 and the elastic ring 6, the inner side of the rubber ring 1 is tightened, increasing the fit degree between the sealing lip 2 and the main shaft. The head and tail of the toughening spring 7 are fixed, and a ring can be formed to increase the uniformity of the tightening force. The auxiliary lip 8 is close to the side of the dust-proof lip 3, which can play a role in secondary dust prevention. The extended lip 9 is located at the bottom of the sealing lip 2, which can play a role in oil seal. Specific Embodiment 2

[0029] Please refer to Figures 1-4 , on the basis of Specific Embodiment 1, a toughening spring 7 is fixedly connected to the surface of the elastic ring 6. The head and tail of the toughening spring 7 are fixed. An auxiliary lip 8 is fixedly connected to the inner side of the rubber ring 1 and at the top of the sealing lip 2. An extended lip 9 is fixedly connected to the inner side of the rubber ring 1 and at the bottom of the sealing lip 2. The metal ring 4 is made of stainless steel, and the cross-section of the metal ring 4 is Z-shaped. The surface of the elastic ring 6 is in contact with the inner wall of the rubber ring 1. The elastic ring 6 is at the same horizontal position as the sealing lip 2. A fixing groove 10 is opened on the other side of the rubber ring 1, and an auxiliary ring 11 is installed inside the fixing groove 10. The number of the auxiliary rings 11 is two, and the outer diameter of the rubber ring 1 is 8CM.

[0030] Specifically: The cross-section of the metal ring 4 is Z-shaped. Through the Z-shaped design, the elastic acting force of the metal ring 4 can be increased. When the bearing and the main shaft deviate and shake, the rubber ring 1 can be quickly reset, improving the sealing effect. The elastic ring 6 is at the same horizontal position as the sealing lip 2, which can tighten the sealing lip 2. The auxiliary ring 11 is installed in the fixing groove 10, which can provide a buffer space when the rubber ring 1 shrinks.

[0031] The working principle of the present utility model is as follows: When the rubber ring 1 is installed between the bearing and the main shaft, the sealing lip 2 is installed on the sealing side of the bearing for sealing the oil fluid, and the dust-proof lip 3 is installed on the outer side of the bearing for blocking dust. Using two groups of sealing materials with different materials for oil fluid blocking and dust blocking can effectively improve the sealing effect of the bearing. The metal ring 4 can increase the toughness of the rubber ring 1, so that the inner side of the rubber ring 1 always fits with the main shaft, improving the sealing function.

[0032] The auxiliary lip 8 is close to the dust-proof lip 3 and can play a role in secondary dust prevention. The extension lip 9 is located at the bottom of the sealing lip 2 and can play a role in oil fluid sealing.

[0033] The standard parts used in the present utility model can all be purchased from the market, and can also be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled through the control unit. The control circuit of the control unit can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in the art. Therefore, the control method and the circuit connection are not explained in detail in the present utility model.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model.

Claims

1. A wear-resistant bearing rubber seal ring, comprising a rubber ring (1), characterized in that: A sealing lip (2) and a dustproof lip (3) are respectively installed on the inner side of the rubber ring (1); A toughening component is arranged inside the rubber ring (1), and the toughening component comprises a metal ring (4). The metal ring (4) is installed inside the rubber ring (1). A mounting groove (5) is provided on one side of the rubber ring (1), and an elastic ring (6) is installed inside the mounting groove (5).

2. The wear-resistant bearing rubber seal ring according to claim 1, characterized in that: A toughening spring (7) is fixedly connected to the surface of the elastic ring (6), and the toughening spring (7) is fixed at both ends.

3. The wear-resistant bearing rubber seal ring according to claim 1, characterized in that: An auxiliary lip (8) is fixedly connected to the inner side of the rubber ring (1) and located at the top of the sealing lip (2), and an extended lip (9) is fixedly connected to the inner side of the rubber ring (1) and located at the bottom of the sealing lip (2).

4. The wear-resistant bearing rubber seal ring according to claim 1, characterized in that: The metal ring (4) is made of stainless steel, and the cross section of the metal ring (4) is in a Z shape.

5. The wear-resistant bearing rubber seal ring according to claim 1, characterized in that: The surface of the elastic ring (6) is in contact with the inner wall of the rubber ring (1), and the elastic ring (6) and the sealing lip (2) are kept at the same horizontal position.

6. The wear-resistant bearing rubber seal ring according to claim 1, characterized in that: A fixing groove (10) is provided on the other side of the rubber ring (1), and an auxiliary ring (11) is installed inside the fixing groove (10).

7. The wear-resistant bearing rubber seal ring according to claim 6, characterized in that: There are two auxiliary rings (11), and the outer diameter of the rubber ring (1) is 8 cm.

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