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Air spring appending air chamber structure with variable volume

An additional air chamber and air spring technology, applied in the direction of springs, springs/shock absorbers, gas shock absorbers, etc., can solve the problems of complicated changes, improve ride comfort and ride comfort, and reduce the space occupied. The effect of small, widened variation

Inactive Publication Date: 2012-01-04
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the current situation that the volume of the additional air chamber of the existing air spring is changed in a complicated manner during the changing process, and provides an additional air chamber of the air spring with a simple structure and variable volume

Method used

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  • Air spring appending air chamber structure with variable volume
  • Air spring appending air chamber structure with variable volume
  • Air spring appending air chamber structure with variable volume

Examples

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Embodiment Construction

[0013] see Figure 1-2 , the present invention includes a cylindrical additional air chamber cavity 1, the two ends of the additional air chamber cavity 1 are open, the lower opening is sealed and connected to the lower sealing cover plate 5, and the upper opening is sealed and connected to the upper sealing cover plate 9 to ensure that the additional air chamber The airtightness of chamber cavity 1. The lower sealing cover plate 5 is connected to one end of the connecting pipeline 4, so that one end of the connecting pipeline 4 communicates with the additional air chamber cavity 1, and the other end of the connecting pipeline 4 communicates with the air spring body.

[0014] A lead screw 6 is arranged at the central axis of the inner cavity of the additional air chamber cavity 1, the lower end of the lead screw 6 is fixedly connected to the lower sealing cover 5, the upper end of the lead screw 6 passes through the hole on the sealing cover 9, and extends Out of the addition...

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Abstract

The invention discloses an air spring appending air chamber structure with variable volume for a vehicle, and the structure comprises a cylindrical appending air chamber cavity body of which the two ends are provided with openings, wherein the middle axle of the inner cavity of the appending air chamber cavity body is provided with a screw rod of which the upper end is connected with an external driving device; the screw rod in the appending air chamber cavity body is sheathed with a piston by a screw rod pair, the outer wall of the piston is tightly matched with the inner wall of the appending air chamber cavity body, and the appending air chamber cavity body is divided into an effective volume cavity and a spare volume cavity; the whole inner wall of the appending air chamber cavity body is provided with a piston rotation-limiting groove along the axial direction, and the edge of the piston is provided with a protruding part which is clamped in the piston rotation-limiting groove; the inner wall of the appending air chamber cavity body is provided with three vent grooves at interval along the axial direction; and a gap between every two vent grooves and the thickness of the piston are equal. The air chamber structure provided by the invention has the advantages of simple structure and small volume, and can be used for effectively and reliably achieving the variable volume ofthe appending air chamber.

Description

technical field [0001] The invention relates to an additional air chamber of an air spring for vehicles, in particular to an air spring additional air chamber with variable volume. Background technique [0002] The air spring utilizes the compressibility of the gas to achieve its elastic effect, and has the functions of buffering and vibration isolation. The stiffness of the air spring is one of the key components that affect the comfort of the car. In order to make the automobile air suspension adapt to various complex working conditions of the vehicle, the stiffness characteristics of the spring are changed by changing the volume of the additional air chamber of the air spring. The volume of the additional air chamber has a significant impact on the stiffness characteristics, and the volume of the additional air chamber becomes larger. The air spring stiffness becomes smaller. [0003] The patent application number is 201010549005.1, the name is "a kind of variable volume...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/02F16F9/46
Inventor 李仲兴江洪王静王申旭高明宏黄定师张伟龙
Owner JIANGSU UNIV
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