Rotary spring plug sealing ring

Abstract

The utility model relates to a rotary spring plug sealing ring which comprises a sealing jacket and a spring, the spring is arranged in the sealing jacket, and the sealing jacket adopts a jacket made of polytetrafluoroethylene polymeric materials to form the rotary spring plug sealing ring which is used for replacing a traditional O-shaped ring. The spring is a metal energy storage spring resistant to seawater corrosion and used for providing permanent elastic force for the sealing jacket and making up for material abrasion and deviation or eccentricity of matched parts. During use, the sealing jacket is in pressure contact with a medium, and the medium pressure assists the sealing jacket in energy storage sealing. Compared with an original rubber sealing ring, the rotary spring plug sealing ring has the advantages of being low in friction coefficient, excellent in abrasion resistance, good in corrosion resistance, high in bearing pressure, long in service life and the like. And the long-term working temperature can reach 250 DEG C.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a rotary Varisal sealing ring. Background Art

[0002] The plug seal is composed of a polymer sealing shell and a corrosion-resistant stainless steel metal spring. The seal passes through the rotating shaft and is installed in the groove. The spring is compressed to form an outward tension, which causes the sealing lip on the top of the sealing shell to fit closely to the groove. Since the spring permanently provides elastic force to the sealing lip, it can compensate for the wear of the sealing shell and the eccentricity of the mating parts, thereby forming a seal from vacuum to low pressure. In addition, the system pressure will assist the spring in storing energy. The greater the pressure, the more fully the sealing lip fits the groove, thus forming a high-pressure seal. Pan-plug seals are widely used in pumps, valves, compressors, pharmaceutical equipment, petrochemicals and other fields.

[0003] When the pan-seal seal is used to seal the end face of the rotating shaft, an interference fit is formed between the pan-seal seal, the end face of the bearing seat and the rotating shaft, which can prevent external dust or muddy water from entering the body, and can effectively prevent the grease in the body from leaking to the outside. However, the existing seals generally use a single-layer sealing lip to seal the rotating shaft, which has a poor effect in blocking external dust or muddy water, so it is necessary to improve it. Summary of the invention

[0004] The utility model is to provide a rotary universal seal ring to replace the traditional O-ring. Compared with the original rubber seal ring, the new structure has the characteristics of low friction coefficient, excellent wear resistance, good corrosion resistance, high bearing pressure, long service life, etc. The long-term working temperature can reach 250℃.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a rotary Variseal seal ring, including a sealing jacket and a spring, wherein the spring is arranged in the sealing jacket, and the sealing jacket adopts a jacket with polytetrafluoroethylene polymer material to form a rotary Variseal seal ring, which is used to replace the traditional O-ring.

[0006] Furthermore, the spring is a metal energy storage spring resistant to seawater corrosion, which is used to provide permanent elastic force to the sealing jacket and compensate for material wear and displacement or eccentricity of matching parts.

[0007] Furthermore, when in use, the sealing jacket is in contact with the medium pressure, and the medium pressure assists the sealing jacket in energy storage sealing.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] Compared with the original rubber seal ring, the rotary universal seal ring of the utility model has the characteristics of low friction coefficient, excellent wear resistance, good corrosion resistance, high bearing pressure, long service life, etc. The long-term working temperature can reach 250℃. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is a schematic diagram of the overall structure of the rotary Varisal seal ring. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0012] like Figure 1 As shown, a rotary Variseal seal ring proposed in an embodiment of the utility model comprises a sealing jacket 1 and a spring 2. The spring 2 is arranged in the sealing jacket 1. The sealing jacket 1 is a jacket with polytetrafluoroethylene polymer material to form a rotary Variseal seal ring.

[0013] The utility model adopts a rotary Varisal seal ring to replace the traditional O-ring. The rotary Varisal seal ring is a seal ring with a jacket of polytetrafluoroethylene polymer material, which is specially equipped with a metal energy storage spring resistant to seawater corrosion, which provides permanent elastic force to the sealing jacket and compensates for material wear and offset or eccentricity of matching parts. The medium pressure also assists the sealing jacket in energy storage sealing.

[0014] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A rotary Variseal seal, characterized in that: The utility model comprises a sealing jacket and a spring. The spring is arranged in the sealing jacket. The sealing jacket adopts a jacket with polytetrafluoroethylene polymer material to form a rotating universal seal ring, which is used to replace the traditional O-ring.

2. The rotary Variseal seal according to claim 1, characterized in that: The spring is a metal energy storage spring resistant to seawater corrosion, which is used to provide permanent elastic force to the sealing jacket and compensate for material wear and displacement or eccentricity of matching parts.

3. The rotary Variseal seal according to claim 1, characterized in that: When in use, the sealing jacket contacts the medium pressure, and the medium pressure assists the sealing jacket in energy storage sealing.

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