U-shaped arm for air suspension

Abstract

The invention relates to a U-shaped arm for an air suspension. The U-shaped arm is a U-shaped structure formed together by a pair of guide supporting arms and a torsion connecting member for connecting the two guide supporting arms, wherein one end of the guide supporting arm is connected with a suspension support, the other end is connected with a frame by virtue of an airbag, one end of the guide supporting arm is provided with a cavity A capable of just receiving the end part of the torsion connecting member, the end part, stretching into the guide supporting arm, of the torsion connectingmember is provided with a cavity B for receiving a first fixed member, and the first fixed member is matched with a locking member with a threaded section in a threading manner to realize the fixed connection of the torsion connecting member and the guide supporting arm. The U-shaped arm for the air suspension has the advantages that the guide supporting arm and the torsion connecting member of the U-shaped arm are connected in a plugging manner, the connecting strength of the guide supporting arm and the torsion connecting member is ensured by using the cooperative locking way of the fixed member and the locking member, and the load requirement can be met.

Description

technical field [0001] The invention relates to an air suspension, in particular to a U-shaped arm for the air suspension. Background technique [0002] Lightweight is an inevitable trend in global vehicle development, and "air suspension" gradually replaces steel plate suspension with its superior performance. The air suspension system is an advanced product popular in the automobile industry in developed countries today. In developed countries, 100% of medium-sized and above passenger cars, more than 40% of trucks, trailers and tractors use air suspension systems. Its biggest advantages are: It can not only improve the ride comfort of the occupant, but also protect the road. In recent years, the use of air suspension systems in my country's automobile industry has increased significantly. The amount of compressed air in the air suspension system is relatively large. In order to meet the amount of compressed air, it is often necessary to increase the number or volume of t...

AI Technical Summary

Problems solved by technology

[0004] In the above structure, for the structure of the U-shaped arm, airbags, suspension brackets and other components need to be installed on the U-shaped arm, and the entire U-shaped arm needs to bear the vertical upward load, especially at the joint between the guide arm and the pipe beam. bear a certain proportion of the load, and in the U-shaped arm structure in the above patent, the direct welding and fixing method is adopted between the guide arm and the tube beam, which will easily lead to the connection strength between the two not meeting the requirements. That is, it cannot meet the required load requirements, which will affect the overall use

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