Sealing device and sealing ring thereof

Abstract

The invention discloses a sealing ring, which comprises a base body, a first elastic element and a support element used for supporting, wherein the base body is provided with a groove, the support element is fixedly arranged in the groove, the first elastic element is arranged between the support element and the inner side wall of the groove in a clamping way, and in addition, the first elastic element exerts the force in the direction towards the axis center when receiving the impact by fluid. When the sealing ring provided by the invention is adopted, and when the sealing ring receives the impact by the fluid, on one hand, the base body has a certain impact resistance effect on the fluid, and on the other hand, the elastic element receives the impact effect of the fluid and exerts the force in the direction towards the axis center on the base body, so that the contact of the base body and the part passing through the shaft hole is tighter, so that a good sealing effect is achieved. Therefore the sealing ring has the excellent high-pressure fluid dynamic sealing performance, and in addition, the service life is long. The invention also discloses a sealing device comprising the sealing ring.

Description

technical field [0001] The present invention relates to the technical field of sealing, more specifically, to a sealing ring, and to a sealing device including the sealing ring. Background technique [0002] Seals are extremely common components in technical fields such as machinery and equipment, as well as in everyday life. Through sealing, it is possible to prevent fluid or solid particles from leaking from adjacent joint surfaces and to prevent external impurities such as dust and moisture from invading the interior of the machine equipment. [0003] Traditional seals are mostly used for static sealing of high and low pressure media and dynamic sealing of low pressure media. However, for high-pressure fluids, general seals cannot play a dynamic sealing role or can only play a short-term dynamic sealing effect. Taking the plunger pump as an example, the dynamic seal of the power end of the traditional plunger pump at the plunger adopts a double seal structure of oil sea...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the first object of the present invention is to provide a sealing ring whose structural design can effectively solve the problems of poor sealing effect and short service life of the seal in the high-pressure field. The second object of the present invention is to A sealing device comprising the above-mentioned sealing ring is provided

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