Shaft seal installation tool and installation method

Abstract

The invention discloses a shaft seal installation tool and a shaft seal installation method. The shaft seal installation tool is characterized in that an installation ring comprises a radial supporting surface, an axial supporting surface and an inner hole conical surface; the outer diameter of the axial supporting surface is greater than the minimum inner diameter of the inner hole conical surface, and the width of the axial supporting surface is greater than the cross section diameter of a seal ring; and the minimum inner diameter of the inner hole conical surface is matched with a predetermined seal size of the seal ring and slightly greater than the outer diameter of a shaft required to be installed with the seal ring. The installation ring further can form a combined installation tool together with a guide ring. During installation, the seal ring is used for sleeving the axial supporting surface of the installation ring directly or through the guide ring, the installation ring is moved to the left side of a seal groove in the shaft, the seal ring is pushed in the seal groove, the installation ring is taken out reversely, and the inner hole conical surface is extruded for enabling the expanded and deformed seal ring to be recovered in size; and by repeating the steps, a plurality of seal rings can be installed. By applying the shaft seal installation tool and installation method, the seal rings can be conveniently installed and the cutting damage of the seal rings during subsequent parts assembly can be prevented.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment installation, and in particular relates to a shaft seal installation tool and an installation method. Background technique [0002] Sealing rings are widely used in equipment that needs to isolate the flow of media. The shaft seal is a sealing ring installed in the sealing groove of a cylinder similar to a piston rod. The existing ways of installing the shaft seal are as follows: 1. Pull the sealing ring manually and put it into the sealing groove. This method is relatively inefficient and time-consuming; for sealing rings with poor elasticity , Installation workers often use auxiliary tools such as screwdrivers to "do not install", which can easily cause damage to the sealing ring or the surface of the rod body, seriously affect the sealing effect, and cause leakage problems. Especially when the rod body needs to be installed with multiple sealing rings, it is more inconvenient to a...

AI Technical Summary

Problems solved by technology

Compared with manual installation, installation in this way can improve the installation effect, but when multiple sealing rings are to be installed on the rod body, multiple tooling needs to be processed, which brings a burden to production; Expansion and deformation occurred in the middle, and the self-recovery size of the sealing ring in the sealing groove takes a long time. In the subsequent installation steps, it is easy to cause other parts to cut the seal, affect the sealing effect, and cause leakage and other problems.

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