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Air spring adjusting static stiffness and dynamic stiffness through volume and displacement and having pressure-limiting and impact-reducing functions

An air spring, displacement adjustment technology, applied in the direction of spring, spring/shock absorber, shock absorber, etc., can solve the problem that the adjustment of stiffness is not continuous, and achieve the improvement of stiffness characteristic curve, no response time lag, and stiffness adjustment ability. improved effect

Inactive Publication Date: 2012-03-28
杨洁
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Problems solved by technology

This adjustment of stiffness is not continuous

Method used

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  • Air spring adjusting static stiffness and dynamic stiffness through volume and displacement and having pressure-limiting and impact-reducing functions
  • Air spring adjusting static stiffness and dynamic stiffness through volume and displacement and having pressure-limiting and impact-reducing functions

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Embodiment Construction

[0008] The specific embodiment of the present invention is: the static stiffness adjustment of the air spring: loosen the lock nut 10, turn the adjustment screw 9, and move the piston 8 upwards, which reduces the effective volume of the gas in the air bag 1 and improves the air spring. On the contrary, it reduces the static stiffness of the air spring; tighten the lock nut 10 after the adjustment; the dynamic stiffness adjustment of the air spring: when the vehicle is at the set height, the movable cover 4 and the auxiliary air chamber 3 The axial sleeve length is the smallest, and the radial orifices of each sub-air chamber of the auxiliary air chamber 3 are connected with the airbag 1. The stiffness of the air spring is determined by the inflation pressure in the airbag 1 according to the load requirement and the effective volume of air in the airbag 1. ; When the dynamic load of the vehicle in motion increases, the upper mounting plate 2 of the airbag 1 will move downward un...

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Abstract

The invention discloses an air spring adjusting static stiffness and dynamic stiffness through volume and displacement and having pressure-limiting and impact-reducing functions, and the air spring is designed to improve smoothness and comfortability of a vehicle and protect a road and goods. For the matching type of the static stiffness characteristic of the air spring, people ignore the adjustment static rigidity required for the difference of an optional standard series gasbag rigidity and specific vehicle type requiring rigidity. The static rigidity of the gasbag is mismatched so as to cause an adjusting difficulty of dynamic stiffness; in a passive air suspension system, the mismatching static rigidity of the gasbag is an important reason of the seriously side sway in the vehicle operation; in the existing dynamic stiffness adjustment, a main air chamber and an auxiliary air chamber are connected, a throttling port on a channel is adjusted to change differential pressure between the main air chamber and the auxiliary air chamber when gas flows; and a rigidity regulating system does not change the volume of the air chambers in an adjustment process, and the rigidity adjustive difficulty is large. The air spring is a novel spring aims at these problems, the air spring provided by the invention has the advantages that the static stiffness is adjustable, the structure is simple, the cost is cheap, and the air spring is convenient and practical.

Description

1. Technical field: [0001] The invention relates to an air spring for a vehicle air suspension. The combined air spring with static stiffness volume adjustment, dynamic stiffness adjustment with displacement plus pressure limiting and shock reduction is especially suitable for passenger buses, urban public transport buses, and large freight trucks. And rail transit vehicles, and special vehicles and limousines. 2. Background technology: [0002] In order to improve the ride comfort of the car, improve the comfort of the ride, and reduce the damage of the vehicle to the road and goods, developed countries have widely used air springs in the suspension systems of their transport vehicles. In recent years, my country is also vigorously promoting and mandating the use of air springs. In the continuous development of air spring technology, in order to further improve the stiffness adjustment characteristics of air spring, so that it is more suitable for the change of vehicle loa...

Claims

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Application Information

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IPC IPC(8): F16F9/02F16F9/34F16F9/44F16F9/512
Inventor 杨洁
Owner 杨洁
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