Floating type static spring seat and mechanical sealing structure thereof

Abstract

The invention relates to the technical field of mechanical sealing, in particular to a floating type static spring seat which comprises an annular spring seat body, wherein the end surface on one side of the spring seat body is an acting surface acting on a sealing component; a plurality of spring holes are formed in the end surface of the other side, opposite to the acting surface, of the spring seat body; a rotation-preventing structure for limiting rotation of the spring seat is arranged on the outer side of the circumference of the spring seat body. The floating type static spring seat is simple in structure, the functions of a spring seat and a push ring are integrated, a spring can be effectively protected, the use property of the spring can be better brought into play, and a stable acting force can be provided for a sealed end surface in mechanical sealing. Besides, the invention further provides a mechanical sealing structure which can further improve the use property of the spring seat and is good in sealing effect.

Description

technical field [0001] The invention relates to the technical field of mechanical seals, in particular to a floating static spring seat and its mechanical seal structure. Background technique [0002] At present, the existing spring seats for mechanical seals usually adopt rotary spring seats that rotate together with the rotating components or non-floating stationary spring seats. The non-floating static spring seat is usually fixedly installed in the mechanical seal to support the spring. When in use, a push ring is set between the floating ring and the static spring seat, and the floating ring acts on the floating ring through the push ring. The structure is relatively complicated. At the same time, the processing direction of the spring hole on the existing non-floating static spring seat is the same as the fluid leakage direction, and the leaked fluid is easy to enter the spring hole, thereby affecting the compensation function of the spring. The rotary spring seat is ...

AI Technical Summary

Problems solved by technology

The non-floating static spring seat is usually fixedly installed in the mechanical seal to support the spring. When in use, a push ring is set between the floating ring and the static spring seat, and the floating ring acts on the floating ring through the push ring. The structure is relatively complicated. ; At the same time, the processing direction of the spring hole on the existing non-floating static spring seat is the same as the fluid leakage direction, and the leaked fluid is easy to enter the spring hole, thereby affecting the compensation function of the spring

The rotary spring seat is a floating type. In actual use, the spring not only bears the friction between the contact surface with the spring seat, but also bears the gravity from the spring seat itself and the centrifugal force generated by the rotation, which is easy to twist the spring, especially When used in a multi-spring mechanical seal, the twisting and deformation of the spring is more serious, which affects the compensation of the spring to the end face of the mechanical seal; The section is longer, which in turn affects the floatability of the floating assembly and affects the actual use of the spring seat

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