High-temperature-resistant rubber sealing ring

Abstract

The utility model relates to the technical field of rubber sealing rings, in particular to a high-temperature-resistant rubber sealing ring which comprises a rubber ring body, a wear-resistant layer is fixedly installed on the side wall of the outer end of the rubber ring body, auxiliary sealing rings are arranged at the upper end and the lower end of the wear-resistant layer, and a heat dissipation ring is arranged at the inner end of the rubber ring body. The high-temperature-resistant rubber sealing ring is arranged on a shaft rod needing to be sealed in a sleeving mode through the rubber sleeve, the auxiliary sealing ring is clamped in the clamping groove of the installation piece, the sealing effect is further improved, the rubber sealing ring makes contact with an object for a long time in the using process, and the temperature of the surface of the object can be conducted to the rubber sealing ring; the heat insulation ring can insulate heat generated by friction of the outer end of the rubber ring body or reduce the heat transmitted into the rubber ring body, so that the heat in the rubber ring body is reduced, meanwhile, the remaining heat is rapidly dissipated through the heat dissipation ring, the heat dissipation holes, the heat dissipation strips and the heat conduction ring, and deformation of the rubber sealing ring is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber sealing rings, in particular to a high temperature resistant rubber sealing ring. Background Art

[0002] Rubber sealing rings are used to be installed on various mechanical equipment to seal at a specified temperature and pressure and in different liquids and gases in a static or moving state. According to the classification, there are O-type sealing rings, Y-type sealing rings, V-type sealing rings, YX-type sealing rings for holes, YX-type retaining rings for holes and other rubber sealing rings.

[0003] In the related art, the rubber seal ring is annular and is mainly used to prevent the leakage of lubricating oil and the intrusion of foreign objects. The existing rubber seal ring is in contact with the object for a long time during use, and the temperature of the object surface will be transmitted to the rubber seal ring. The temperature of the rubber seal ring surface is convenient for heat dissipation, but the temperature inside is not convenient for heat dissipation. Long-term use under high temperature will cause the rubber seal ring to deform, which will lead to the deterioration of the sealing effect of the rubber seal ring. Utility Model Content

[0004] The purpose of the utility model is to provide a high temperature resistant rubber sealing ring to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high temperature resistant rubber sealing ring, comprising: a rubber ring body, a wear-resistant layer is fixedly installed on the outer end side wall of the rubber ring body, auxiliary sealing rings are arranged at both upper and lower ends of the wear-resistant layer, a heat dissipation ring is arranged at the inner end of the rubber ring body, and a plurality of heat dissipation holes are evenly opened on the inner end side wall of the rubber ring body;

[0006] A heat-conducting ring is fixedly installed on the inner end of the rubber ring body, and a rubber sleeve is fixedly installed on the inner end of the heat-conducting ring.

[0007] Preferably, the auxiliary sealing ring is in the shape of a ring, and the cross section of the auxiliary sealing ring is in the shape of a semicircle.

[0008] Preferably, the wear-resistant layer is cylindrical, the auxiliary sealing ring and the wear-resistant layer are integrally formed, and the inner end of the wear-resistant layer is bonded to the outer wall of the rubber ring body.

[0009] Preferably, the heat dissipation ring is made of stainless steel, and the inner port of the heat dissipation hole is in contact with the heat dissipation ring.

[0010] Preferably, a heat-insulating ring is provided at the inner end of the rubber ring body, the heat-insulating ring is cylindrical, and the heat-insulating ring is close to one side of the wear-resistant layer.

[0011] Preferably, a plurality of heat dissipation strips are evenly arranged on the upper and lower ends of the heat-conducting ring.

[0012] Preferably, a cavity is formed at the inner end of the rubber sleeve, a shaping ring is arranged in the cavity, and the shaping ring is made of a metal sheet with good elasticity.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The high-temperature resistant rubber sealing ring is put on the shaft that needs to be sealed through a rubber sleeve, and the auxiliary sealing ring is clamped in the groove of the mounting part to further improve the sealing effect. The rubber sealing ring is in contact with the object for a long time during use, and the temperature of the object surface will be transmitted to the rubber sealing ring. The heat insulation ring can isolate or reduce the heat generated by the friction of the outer end of the rubber ring body to the inside of the rubber ring body, thereby reducing the heat inside the rubber ring body. At the same time, the remaining heat is quickly dissipated through the heat dissipation ring and the heat dissipation hole as well as the heat dissipation strip and the heat conductive ring to avoid deformation of the rubber sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the wear-resistant layer and the auxiliary sealing ring of the utility model.

[0018] In the figure: 1. rubber ring body; 2. wear-resistant layer; 3. auxiliary sealing ring; 4. heat dissipation ring; 5. insulation ring; 6. heat dissipation hole; 7. heat dissipation ring; 8. rubber sleeve; 9. cavity; 10. shaping ring; 11. heat dissipation strip. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-Figure 3The utility model provides a technical solution: a high temperature resistant rubber sealing ring, comprising: a rubber ring body 1, a wear-resistant layer 2 is fixedly installed on the outer end side wall of the rubber ring body 1, auxiliary sealing rings 3 are arranged at both upper and lower ends of the wear-resistant layer 2, the auxiliary sealing ring 3 is annular, the cross-section of the auxiliary sealing ring 3 is semicircular, the wear-resistant layer 2 is cylindrical, the auxiliary sealing ring 3 and the wear-resistant layer 2 are integrally formed, the inner end of the wear-resistant layer 2 is bonded to the outer wall of the rubber ring body 1, the wear-resistant layer 2 and the auxiliary sealing ring 3 are made of nitrile rubber with a thickness of 0.7CM, nitrile rubber is a copolymer formed by polymerization of acrylonitrile and butadiene monomers, mainly produced by low-temperature emulsion polymerization, with excellent oil resistance, high wear resistance, good heat resistance and strong adhesion.

[0022] A heat dissipation ring 4 is provided at the inner end of the rubber ring body 1. The heat dissipation ring 4 is made of stainless steel. Stainless steel is the abbreviation of stainless acid-resistant steel. Steel that is resistant to weak corrosive media such as air, steam, and water or has stainless properties is called stainless steel; and steel that is resistant to chemical corrosive media (acids, alkalis, salts, etc.) is called acid-resistant steel. Stainless steel can shape the rubber ring body 1 and quickly transfer the heat inside the rubber ring body 1. A number of heat dissipation holes 6 are evenly opened on the inner end side wall of the rubber ring body 1. The inner port of the heat dissipation hole 6 is in contact with the heat dissipation ring 4. The heat dissipation ring 4 inside the rubber ring body 1 is in contact with the external air through the heat dissipation hole 6, so that the heat inside the rubber ring body 1 is quickly dissipated.

[0023] A heat-conducting ring 7 is fixedly mounted on the inner end of the rubber ring body 1 , and a rubber sleeve 8 is fixedly mounted on the inner end of the heat-conducting ring 7 . The high-temperature resistant rubber sealing ring can be sleeved on the shaft that needs to be sealed through the rubber sleeve 8 .

[0024] A cavity 9 is formed at the inner end of the rubber sleeve 8 , and a shaping ring 10 is arranged in the cavity 9 . The shaping ring 10 is made of a metal sheet with good elasticity and is used to shape the rubber sleeve 8 .

[0025] During actual use, the high-temperature resistant rubber sealing ring is put on the shaft rod that needs to be sealed through the rubber sleeve 8, and the auxiliary sealing ring 3 is clamped in the clamping groove of the mounting part to further improve the sealing effect. The rubber sealing ring is in contact with the object for a long time during use, and the temperature of the surface of the object will be transmitted to the rubber sealing ring. The heat insulation ring 5 can isolate the heat generated by the friction of the outer end of the rubber ring body 1 or reduce the heat transmitted to the inside of the rubber ring body 1, thereby reducing the heat inside the rubber ring body 1. At the same time, the remaining heat is quickly dissipated through the heat dissipation ring 4 and the heat dissipation hole 6 to avoid deformation of the rubber sealing ring.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, the present embodiment adds a heat-insulating ring 5. The inner end of the rubber ring body 1 is provided with the heat-insulating ring 5. The heat-insulating ring 5 is cylindrical. The heat-insulating ring 5 is close to the side of the wear-resistant layer 2. The heat-insulating ring 5 can isolate the heat generated by the friction of the outer end of the rubber ring body 1 or reduce the heat transmitted to the inside of the rubber ring body 1, thereby reducing the heat inside the rubber ring body 1.

[0028] During actual use, the high-temperature resistant rubber sealing ring is put on the shaft rod that needs to be sealed through the rubber sleeve 8, and the auxiliary sealing ring 3 is clamped in the groove of the mounting part to further improve the sealing effect. The rubber sealing ring is in contact with the object for a long time during use, and the temperature of the surface of the object will be transmitted to the rubber sealing ring. The insulation ring 5 can isolate or reduce the heat generated by the friction of the outer end of the rubber ring body 1 to the inside of the rubber ring body 1, thereby reducing the internal temperature.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, this embodiment adds a heat dissipation strip 11, and a plurality of heat dissipation strips 11 are evenly arranged on the upper and lower ends of the heat-conducting ring 7. The heat dissipation strips 11 and the heat-conducting ring 7 are both made of metal with good thermal conductivity, and can quickly exchange the heat on the rubber ring body 1 to the air.

[0031] During actual use, the high-temperature resistant rubber sealing ring is put on the shaft rod that needs to be sealed through the rubber sleeve 8, and the auxiliary sealing ring 3 is clamped in the clamping groove of the mounting part to further improve the sealing effect. The rubber sealing ring is in contact with the object for a long time during use, and the temperature of the surface of the object will be transmitted to the rubber sealing ring. The heat insulation ring 5 can isolate the heat generated by the friction of the outer end of the rubber ring body 1 or reduce the heat transmitted to the inside of the rubber ring body 1, thereby reducing the heat inside the rubber ring body 1. At the same time, the remaining heat is quickly dissipated through the heat dissipation ring 4 and the heat dissipation hole 6 as well as the heat dissipation strip 11 and the heat conductive ring 7 to avoid deformation of the rubber sealing ring.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high temperature resistant rubber sealing ring, comprising: The rubber ring body (1) is characterized in that: a wear-resistant layer (2) is fixedly mounted on the outer end side wall of the rubber ring body (1), auxiliary sealing rings (3) are arranged at both upper and lower ends of the wear-resistant layer (2), a heat dissipation ring (4) is arranged at the inner end of the rubber ring body (1), and a plurality of heat dissipation holes (6) are evenly opened on the inner end side wall of the rubber ring body (1); A heat-conducting ring (7) is fixedly mounted on the inner end of the rubber ring body (1), and a rubber sleeve (8) is fixedly mounted on the inner end of the heat-conducting ring (7).

2. A high temperature resistant rubber sealing ring according to claim 1, characterized in that: The auxiliary sealing ring (3) is in the shape of a ring, and the cross section of the auxiliary sealing ring (3) is in the shape of a semicircle.

3. A high temperature resistant rubber sealing ring according to claim 2, characterized in that: The wear-resistant layer (2) is cylindrical, the auxiliary sealing ring (3) and the wear-resistant layer (2) are integrally formed, and the inner end of the wear-resistant layer (2) is bonded to the outer wall of the rubber ring body (1).

4. The high temperature resistant rubber sealing ring according to claim 1, characterized in that: The heat dissipation ring (4) is made of stainless steel, and the inner port of the heat dissipation hole (6) is in contact with the heat dissipation ring (4).

5. The high temperature resistant rubber sealing ring according to claim 1, characterized in that: The inner end of the rubber ring body (1) is provided with a heat-insulating ring (5), which is cylindrical and close to one side of the wear-resistant layer (2).

6. The high temperature resistant rubber sealing ring according to claim 1, characterized in that: A plurality of heat dissipation strips (11) are evenly arranged at the upper and lower ends of the heat-conducting ring (7).

7. The high temperature resistant rubber sealing ring according to claim 1, characterized in that: The inner end of the rubber sleeve (8) is provided with a cavity (9), a shaping ring (10) is arranged in the cavity (9), and the shaping ring (10) is made of a metal sheet with good elasticity.

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