Inserting part extractor for cartridge valve

Abstract

The invention discloses an inserting part extractor for a cartridge valve. The cartridge valve sleeves a cup-shaped valve core inserting part. The inserting part extractor includes an inner sleeve, ascrew fixedly connected to the center of the inner sleeve and an outer sleeve sleeving the inner sleeve; the outer sleeve is an elastic part, the inner sleeve and the outer sleeve are in conical surface cooperation, the outer wall of the inner sleeve and the inner wall of the outer sleeve are of tapered structures with increasing cross-sections from top to bottom, and the outer wall of the outer sleeve and the inner wall of the cup-shaped valve core inserting part are in clearance fit; the inserting part extractor further includes a bracket, a through hole is formed in the upper end of the bracket, and two groups of pressing feet are arranged at the lower end of the bracket; the screw penetrates through the through hole and a nut is connected to the upper end surface of the bracket; and when the cup-shaped valve core inserting part is taken out, the outer sleeve extends into the cup-shaped valve core inserting part, one group of the pressing feet of the bracket presses on the upper endsurface of the outer sleeve, and the other group of the pressing feet presses on the upper end surface of a cartridge valve shell. The inserting part extractor for the cartridge valve can quickly remove a valve core of the cartridge valve, and replacing of the cartridge valve and troubleshooting are facilitated.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment, in particular to a plug-in extractor for a cartridge valve. Background technique [0002] Double station (A / B) RH vacuum refining furnace ladle jacking hydraulic system in steelworks provides power and control for ladle frame and ladle lifting. Two sets of two-way cartridge valves (LC type) are installed on the control valve platform in this system, which are used to control the lifting of ladles at two stations. [0003] The RH (vacuum cycle degassing) device is a secondary refining process device for molten steel used to produce high-quality steel. Before the molten steel is treated, the dipping tube is inserted into the predetermined depth of the molten steel to be treated by rising through the ladle, and the molten steel is purified through cyclic degassing and refining. During the ascent process, when station A is rising, station B follows up for a certain distance, resulti...

AI Technical Summary

Problems solved by technology

The first plug-in 2, the second plug-in 3, the third plug-in 5, and the fourth plug-in 6 of the spool part cannot be removed. If you want to remove the spool part, you must first remove the third plug-in 5. The third plug-in 5 can only be removed from the inside. Pull it out, but the inner wall is smooth and has no fulcrum, so it cannot be removed, and the entire valve core assembly cannot be removed

Images