Extrusion molding adjustable type sealing device

Abstract

The invention belongs to a rotary sealing structure of a conveying fluid construction member, in particular to an extrusion molding adjustable type sealing device which is characterized in that the end of a seat body with an interface is provided with a fluid core pipe bearing seat; a sealing ring made of a flexible abrasion-resistance material is arranged on the step at the inner end of the fluid core pipe bearing seat; a rolling bearing arranged on a fluid core pipe through an inner blocking shoulder is arranged in the bearing hole of the fluid core pipe bearing seat in a matching mode; an adjusting gap is reserved between the inner end surface of the outer ring of the rolling bearing and the blocking shoulder of the step; the cylindrical surface on the inner side of the fluid core pipe and the circular conical surface of the inner end part are matched with the sealing surface formed by extruding the sealing ring; the pressing ring of the bearing penetrating cover arranged on the outer end surface of the fluid core pipe bearing seat is matched with the outer ring of the rolling bearing; and the adjusting gap is reserved between the inner end surface of the bearing penetrating cover and the outer end surface of the fluid core pipe bearing seat. The conveying fluid assembly has the advantages of reliable rotation and seal, adjustable sealing gap, flexible rotation of the rotating piece for conveying the fluid, long service life, low manufacture cost, safety and reliability, and is simple and convenient in operation.

Description

technical field [0001] The invention belongs to a rotary sealing structure for conveying fluid components, in particular to an extruded adjustable sealing device. Background technique [0002] At present, the commonly used fluid (liquid, gas) seals are O-type, Y-type, U-type, J-type rubber seals, V-type fabric seals, mechanical seals, etc. It is suitable for the reciprocating motion, rotary motion and helical motion of the seal, but it cannot be adjusted and reused after the seal is worn. Replace the seal with a new one to continue normal operation. Some can be fine-tuned but only used during assembly, and cannot be adjusted and reused after normal wear and tear. Except for O-rings, the rest have large friction, and some are not suitable for high temperature and high pressure. Some seals can only be obtained through molds, the process is complicated and the cost is high. Although some can be obtained by machining, the precision is high. SUMMARY OF THE INVENTION [00...

AI Technical Summary

Problems solved by technology

Some seals can only be obtained through molds, the process is complicated and the cost is high

Although some can be obtained by machining, the precision requirements are high

Images