Piston lever of reducer for automobile

Abstract

The invention discloses a car shock absorber piston rod, which includes heat-treated, cylindrical surface of the piston rod or chrome Ontology (1), as well as connected to the piston rod Ontology (1) Core ends of the piston rod (2) and connectivity Screw (3); described rod Ontology (1) internal (4) For the hollow; referred to the internal (4) For the hollow rod Ontology (1) Thickness (a) 3 mm - 4mm; period Detroit-Core (2) and the piston rod Ontology (1) end of the connectivity options for friction welding pressure; referred to connect Screw (3) and piston rod Ontology (1) the other end of the connectivity options for friction welding pressure. The advantages of this invention are: to maintain the existing strength of the piston rod, manufacture low-cost, long life, light weight, small friction coefficient, thermal deformation fast and small.

Description

Technical field: [0001] The invention relates to a piston rod, in particular to an automobile shock absorber piston rod whose outer cylindrical surface has undergone heat treatment or chrome plating. Background technique: [0002] The wear resistance and reliability of the automobile shock absorber piston rod have always affected the performance and service life of the automobile shock absorber. In the prior art, the piston rod of the automobile shock absorber usually adopts heat treatment or chrome plating to obtain a layer of surface matrix for the piston rod Layer, the anti-wear function is realized by this base layer. However, regardless of the material of the base layer or the processing technology of the base layer, its wear resistance and service life are far from meeting the high-performance requirements of existing automobile shock absorbers. In addition, since the piston rod body is solid, the amount of material used to manufacture the piston rod body will be rela...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the properties of the ceramic film layer itself, in practical applications, it still has the following three disadvantages: 1. The ceramic film layer is difficult to be combined on the outer cylindrical surface of the piston rod body, even if it is combined, Its firmness is not very high, and it will easily fall off from the piston rod body during the movement of the piston rod, thus shortening the service life of the piston rod; 2. One of the defects of ceramics is that it is relatively brittle, and the It is easy to break during the up and down movement, which affects the normal use of the piston rod and shortens the service life of the piston rod; 3. During the up and down movement of the piston rod, the heat dissipation of the piston rod will be affected by the coating of the ceramic film layer. Restricted, the piston rod that cannot be dissipated in time will cause the temperature of the piston rod to rise slowly, and the high temperature for a long time will gradually deform the piston rod, thus affecting the normal movement of the piston rod

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