Volume-variable air spring auxiliary air chamber

Abstract

The invention discloses a volume-variable air spring auxiliary air chamber, and relates to the technical field of automobile air spring auxiliary air chambers. The volume-variable air spring auxiliaryair chamber mainly comprises a first-stage air chamber body, a second-stage air chamber and a third-stage air chamber body and further comprises a connecting pipeline connected with a main air chamber body, a top cover, a separation plate, a ratchet wheel, a rotary disc, a ratchet wheel shaft and the like. According to the auxiliary air chamber, changing of the volume of the auxiliary air chambercan be achieved by controlling rotation of the rotary disc, and a driving mechanism drives the ratchet wheel shaft to rotate. The ratchet wheel on the ratchet wheel shaft rotates through the ratchetwheel shaft to interact with a pawl on the rotary disc, and then the rotary disc is driven to do circling motion. When a hole in the rotary disc is coaxial with a hole in a separation plate, the effective volume of the auxiliary air chamber changes, the rigidity of an air spring system is finally changed to meet various running working conditions of a vehicle, and the aim of improving the comprehensive performance of an air suspension system is achieved.

Description

technical field [0001] The invention relates to the technical field of an additional air chamber for an air spring of an automobile, in particular to an additional air chamber for an air spring with a variable volume. technical background [0002] Air spring is an important part of air suspension. It uses the compressibility of air in a closed container to realize its elastic performance, and has the functions of support, buffer, brake, height adjustment and angle adjustment. The stiffness of the air spring is an important factor affecting the comfort of the car. During the driving process of the car, various complex working conditions will be encountered. In order to adapt the car air suspension to different driving conditions, the stiffness characteristics of the air spring can be changed by changing the volume of the additional air chamber of the air spring. When the volume of the additional air chamber is 0 to 3 times the volume of the main air chamber of the air spring...

AI Technical Summary

Problems solved by technology

The existing patent document "A variable additional air chamber air spring structure" (application number 201520817980.4) divides the additional air chamber into three "sub-air chambers", and changes the volume of the additional air chamber by adjusting the inflation control valve of the additional air chamber , its disadvantages are: there are many control valves, the control process is complicated, and it is prone to failure

The patent "A volume-adjustable air spring additional air chamber" (application number 201310235464.6) uses the rotation of the fan blade to change the effective volume of the additional air chamber. The problem is that the effective volume cannot be accurately determined, and the sealing not guaranteed

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