Volume adjustable air spring auxiliary air chamber

An additional air chamber and air spring technology, applied in the direction of springs, springs/shock absorbers, shock absorbers, etc., can solve the problems of poor air spring effect, complex volume structure, prone to failure, etc., and improve the ride comfort. and ride comfort, widening the range of changes, and the effect of less failure

CN103307188BInactive Publication Date: 2015-04-22JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-04-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a volume adjustable air spring auxiliary air chamber, relates to the technical field of vehicle air spring auxiliary air chamber, and comprises an auxiliary air chamber, a top cover, a first fan blade, a second fan blade, and a stepping motor, wherein the stepping motor is connected with a controller ECU (Engine Control Unit) through an amplifying circuit. Eight vent grooves are formed in the bottom of the auxiliary air chamber at equal intervals and distributed in a circle, and the interval between each two vent grooves is equal with the thickness of the fan blades. The structure guarantees that the air pressure is constant when the air spring auxiliary air chamber is adjusted. The change of volume of the auxiliary air chamber can be realized by controlling the rotation of the second fan blade, so as to enable the effective volume of the air spring engaged in working to be changed, and the rigidity of the air spring system is changed accordingly to adapt to various traveling condition of the vehicle, and achieve the purpose of improving the comprehensive performance of the suspension system. The chamber provided by the invention has a simple structure, is convenient to adjust and fast in adjusting speed, and less likely to break.
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Description

technical field

[0001] The invention relates to the technical field of an additional air chamber of an air spring for a vehicle, in particular to an additional air chamber of an air spring with a 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 parameters affecting 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 can be 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 changes. Larger, the stiffness of the air spring becomes smaller. The existing patent literature "An additional air chamb...

Examples

Embodiment Construction

[0016] specific implementation plan

[0017] A specific embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the present invention includes a cylindrical additional air chamber cavity 1, the cavity 1 is cup-shaped, and the upper end is connected with the top cover 4 with three bolts 6, and the bolts are equally spaced circumferentially; the top cover 4 is circular, The diameter is the same as the upper end of the cavity 1, and its function is to ensure the sealing of the cavity 1. A circular hole is opened at the center of the bottom of the cavity 1 . One end of the connecting pipeline 5 is connected to the top cover 4, so that one end of the connecting pipeline 5 communicates with the cavity 1, and the other end of the connecting pipeline 5 communicates with the air spring body; the center of the top cover 4 is axially connected with a shaft for The first fan blade 3 and the s...