Air spring for automobile

Abstract

The invention discloses an air spring for an automobile. A bag body of the air spring comprises an inner rubber layer, a reinforcing layer and an outer rubber layer. The outer rubber layer is preparedfrom the following raw materials in parts by weight: 70-85 parts of chloroprene rubber, 9-17 parts of epichloro-hydrin rubber, 1-3.8 parts of ethylene propylene diene monomer, 2-5 parts of polyaniline, 15-22 parts of carbon black, 2-9 parts of ground calcium carbonate, 1-7 parts of talcum powder, 2-7 parts of fly ash, 8-16 parts of modified halloysite nanotubes, 1-5 parts of zinc methacrylate, 2-6 parts of attapulgite, 0.5-2 parts of protective wax, 1-2 parts of stearic acid, 1-3 parts of zinc oxide, 2-7 parts of magnesium oxide, 1-2 parts of sulfur, 0.5-1 part of an accelerant DETU, 0.3-1.1parts of an accelerant M, 0.1-0.8 part of an accelerant NA-22, 1-2.8 parts of an anti-aging agent and 0.3-0.8 part of a coupling agent. The air spring for the automobile is good in aging resistance, strength and flame retardance and long in service life.

Description

technical field [0001] The invention relates to the technical field of air springs, in particular to an air spring for automobiles. Background technique [0002] Air spring is a kind of rubber shock absorbing element filled with compressed air inside and using the compressibility of air to realize elastic buffering function. It has been widely used in commercial vehicles, buses, rail vehicles, machinery and equipment and building base Adjustable air suspension. Compared with leaf springs, air springs for automobiles can improve the ride comfort of automobiles and have the advantage of variable stiffness. The airbag compound of conventional air springs for automobiles generally uses natural rubber or neoprene. Although natural rubber and neoprene have excellent performances, they still have the defect of poor aging resistance. During the use and parking of the car, The air bag of the air spring will leak or fail, which will affect the safety of the car, and its flame retard...

AI Technical Summary

Problems solved by technology

The airbag compound of conventional air springs for automobiles is generally made of natural rubber or neoprene. Although natural rubber and neoprene have excellent performances, they still have the defect of poor aging resistance. During the use and parking of the car, The air bag of the air spring will leak or break and fail, which will affect the safety of the car, and the flame retardancy is not good, which cannot meet the performance requirements of the development of the automobile industry for the air spring used in automobiles