Rubber Elastic Coupling Compounds for Automobiles

Abstract

The invention discloses an automobile rubber elastic coupling size, consisting of the following components in parts by weight: 25-35 parts of natural rubber, 10-20 parts of calcium carbonate, 4-6 parts of tetramethyl silane, 3-5 parts of palm oil, 1.5-3 parts of pit mud, 2-4 parts of guar gum, 4-6 parts of lignin, 4-6 parts of sea-foam stone powder, 3-5 parts of nano silicon dioxide, 1.5-2.5 parts of an anti-aging agent, 3-5 parts of straw ash, 2-3 parts of dimethyl silicone oil, 1.5-2 parts of white factice, 1-3 parts of Vaseline, 4-6 parts of rare-earth modifier, 2-3 parts of an adhesive, 4-6 parts of linear polyethylene and 4-6 parts of fumed silica. During preparation, the components are mixed uniformly in a kneading machine and treated at 140-170 DEG C for 2 hours to obtain the size. By adding the polyethylene, the modifier and the like into a traditional rubber material, the elasticity of a coupling is greatly improved, and the coupling is not broken or deformed in long-time operation and is long in service life.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a rubber elastic coupling compound for automobiles. Background technique [0002] The automotive elastic coupling is a torque mechanical part used to connect two shafts (main drive shaft and driven transmission shaft) of different structures to make them rotate together. In the high-speed power rotation, it must have the function of buffering, shock absorption and improving the dynamics of the shaft system. At the same time, the elastic sacrifice element also has buffering and shock-absorbing properties, and its structure consists of a rubber body, a strength layer and a steel pipe sleeve. The elastic coupling has the ability to compensate for the offset of the two axes. It relies on the locking of the metal skeleton pin group to generate the friction moment on the contact surface and compress the rubber elasticity to transmit the torque, eliminating or reducing the relative ...

AI Technical Summary

Problems solved by technology

In the selection of the strength layer, it must have high strength, good elastic resilience, good fatigue resistance, high initial modulus, good ruler stability, better heat resistance than ordinary fibers, and second only to nylon in heat resistance. And vinylon, a material with good acid and alkali resistance, the previous products have poor performance