Additional air chamber of air spring with variable volume

Abstract

The invention discloses an additional air chamber of an air spring with a variable volume, relating to the technical field of the additional air chamber of the air spring. The additional air chamber of an air spring with a variable volume comprises an additional air chamber cavity, a connecting line for connecting a main air chamber, a piston, a piston rod, a control valve, a cover plate, a slender pipeline and a connection line, wherein the additional air chamber can change the volume by controlling the reciprocating motion of the piston, so that the effective volume of an air spring participating in working can be changed to change the rigidity of an air spring system so as to adapt to various driving working conditions of vehicles, thereby realizing the purpose of improving the comprehensive performance of a suspension system; and a driving force required for the piston to move is small, the internal air pressure of the spring can be guaranteed to be stable when the control valve is duly switched on and off, and impact generated when the spring works is reduced, thereby bringing convenience for the air spring with a variable volume of the additional air chamber. The additional chamber of an air spring has the advantages of simple structure, low production process requirement and low manufacture cost and is convenient to maintain.

Description

technical field [0001] The invention relates to the technical field of additional air chambers for vehicle air springs, in particular to an air spring additional air chamber with variable volume. Background technique [0002] With the improvement of people's requirements for vehicle ride comfort, higher requirements are put forward for the development of suspension technology, and air suspension systems are more and more widely used in vehicle suspension systems. The air suspension system uses the air spring as the elastic element, combined with the shock absorber and the guide mechanism. After the vehicle is installed with the air suspension system, the driving comfort and ride comfort of the vehicle are improved. [0003] The air spring utilizes the compressibility of gas to realize its elastic effect, and has the functions of buffering and vibration isolation. [0004] The volume of the air spring has a significant impact on its stiffness characteristics. Domestically, W...

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Problems solved by technology

[0006] Aiming at the current situation that the volume of the additional air chamber of the existing air spring cannot be changed, or the height of the air spring is affected during the change process and the driving force for realizing the change of the additional air chamber is relatively large, the present invention provides an air spring with an adjustable volume that can overcome the above-mentioned shortcomings. The air chamber is added to the spring, by changing the volume of the spring, the performance of the spring system is improved, so that the advantages of the air spring can be fully exerted

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