A movable sealing device

Abstract

The invention discloses a movable sealing device and a use method thereof and belongs to the field of sealing pieces of mechanical devices. The movable sealing device comprises an outer ring body, an inner ring body and a rubber seal ring. The movable sealing device further comprises a limiting rod. The outer ring body and a bearing cover are fixed through bolts and can meet the demand for a large gap between a compression roller and a rotating shaft. The rubber seal ring is arranged in the inner ring body, so that the side, close to the rotating shaft, of the inner ring body is in tight contact with the rotating shaft. The two radial opposite outer sides of the inner ring body are of a plane structure. The limiting rod is arranged between the plane structure of the inner ring body and the outer ring body. When the rotating shaft and an end cover move, the inner ring body and the rubber seal ring in the inner ring body can horizontally move relative to the outer ring body, and then the seal function is achieved. The movable sealing device has the advantages of being simple in structure, reasonable in design, easy to manufacture and good in seal effect and is particularly suitable for seal between a movable piece and a fixed piece.

Description

technical field [0001] The invention belongs to the field of mechanical device seals, and more specifically relates to a movable sealing device. Background technique [0002] High-pressure roller mill is a new type of energy-saving grinding equipment that came out in the mid-1980s. It is one of the intermediate equipment in the process of cement grinding and metal ore crushing. It is the key equipment to achieve more crushing and less grinding. Significantly reduce energy consumption. After the high-pressure roller mill has been greatly popularized and applied in the cement field, in order to make it popular in the metal mine field, the roller surface of the cemented carbide stud is used, which greatly improves the wear resistance of the roller surface, making the high-pressure Roller mills have made a breakthrough in the crushing of ore in metal mines. When crushing ore, it relies on the relative rotation between a pair of pressure rollers to squeeze the raw material in t...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that existing sealing rings have inflexible sealing and are not suitable for frequent relative movement between fixed parts and moving parts, the present invention provides a movable sealing device and its use method, which include an outer ring body, an inner ring body, rubber The sealing ring and the limit rod, the outer ring body and the bearing cover are fixed by bolts, which can meet the demand for a large gap between the pressure roller and the rotating shaft; the inner ring body is equipped with a rubber sealing ring, so that the side of the inner ring body close to the rotating shaft The rotating shaft is in close contact, and the radially opposite sides of the inner ring body are planar structures. The limit rod is set between the planar structure of the inner ring body and the outer ring body. The rubber sealing ring can move horizontally relative to the outer ring body to realize the sealing function

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