Additional air chamber of air spring with variable volume

A technology of additional air chambers and air springs, applied in the direction of springs, springs/shock absorbers, shock absorbers, etc., can solve the problem that the volume of additional air chambers cannot be changed, and achieve simple structure, low production process requirements, and convenient maintenance Effect

CN102207161BInactive Publication Date: 2013-01-23JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2013-01-23
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment Construction

[0019] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Such as figure 1 Shown is a variable-volume air spring additional air chamber for passenger cars, including an additional air chamber cavity 2 and a connecting pipeline 1, the closed end of the additional air chamber cavity 2 is connected to the air spring body through the pipeline 1, and the open end Sealed by cover plate 12 . The interior of the additional air chamber cavity 2 is equipped with a piston 3, the surface of the piston 3 in contact with the additional air chamber cavity 2 is equipped with a piston sealing device 14, and the surface of the piston 3 close to the cover plate 12 is equipped with an elongated pipeline 13 and The control valve 4 and the slender pipeline 13 are wound into a "snake" shape and fixed on the surface of the piston 3, and the control valve 4 is a normally closed valve. Such as figure 2 As shown, the slender p...