Synchronous assembly tool for scraper seal and sliding bearing in cylinder cover of hydraulic cylinder

Abstract

The invention discloses a synchronous assembly tool for a scraper seal and a sliding bearing in a cylinder cover of a hydraulic cylinder. The synchronous assembly tool comprises a positioning base, asupporting seat and a guiding column; a lower boss at the bottom end of the positioning base is positioned in a positioning hole of an oil press; the supporting seat is arranged in a lower groove in the top end of the positioning base, and the supporting seat and the lower groove are in clearance fit; an upper groove and an upper boss in the center are arranged at the top end of the supporting seat, and mounting holes penetrating through the groove bottom of the upper groove and the bottom end of the supporting seat are formed in the periphery of the upper boss; the mounting holes are providedwith extrusion springs with the top ends stretching out of the mounting holes; the guiding column comprises a column body of an integrated fixing structure and a limiting ring sleeves the column body; and the outer diameter of the limiting ring is larger than the outer diameter of the sliding bearing. The scraper seal and the sliding bearing are press-fitted simultaneously, multiple assembly processes caused by two times of press-fitting and multiple times of tool replacing are eliminated, the assembly efficiency is improved, and the labor intensity is lowered.

Description

technical field [0001] The invention relates to the field of hydraulic cylinder manufacturing, in particular to a synchronous assembly tool for a dustproof ring and a sliding bearing in a cylinder head of a hydraulic cylinder. Background technique [0002] The cylinder head of the hydraulic cylinder usually needs to be assembled with parts such as sealing rings, baffles, dust-proof rings and sliding bearings, and the assembly of each part is manually assembled in sequence. Among them, the assembly of the skeleton type dust-proof ring and the sliding bearing commonly used in the cylinder head needs to be assembled by applying external pressure through a hydraulic press. In the actual assembly process, the sliding bearing assembly is generally pressed into the cylinder head with the help of the guide tool, and then the guide tool is replaced, and the skeleton type dust ring is pressed into the assembly by turning around. During the assembly process, two press-fits are require...

AI Technical Summary

Problems solved by technology

During the assembly process, two press-fits are required, and tooling needs to be replaced in the middle, which is labor-intensive and the assembly efficiency is low; at the same time, during the assembly process, the cylinder head is not fixed when it is press-fitted on the hydraulic machine, posing a safety risk

Images