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Air spring with static stiffness and dynamic stiffness adjusted by using volume occupying and floating throttle plate

An air spring, throttle adjustment technology, applied in the direction of spring, spring/shock absorber, gas shock absorber, etc., can solve the problem of non-continuous adjustment of stiffness, achieve smooth and continuous adjustment, improve stiffness characteristic curve, and act quickly Effect

Inactive Publication Date: 2012-04-04
杨洁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This adjustment of stiffness is not continuous

Method used

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  • Air spring with static stiffness and dynamic stiffness adjusted by using volume occupying and floating throttle plate
  • Air spring with static stiffness and dynamic stiffness adjusted by using volume occupying and floating throttle plate

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Embodiment Construction

[0009] The specific embodiment of the present invention is: its static stiffness adjustment method is: unclamp lock nut 9, twist bolt 8 to make piston 7 move upwards; The upward movement of piston 7 occupies the internal space of lower mount 5, expands Between the bottom plane of the piston 7 in the lower limiting support 6 and the bottom plate of the lower mounting seat 5, the space volume connected to the atmosphere through the gap of the bolt 8 reduces the volume of compressed air of the same volume and improves the static stiffness of the air spring; On the contrary, if the bolt 8 is screwed in the opposite direction, the piston 7 will move down under the pressure of the compressed air, increasing the volume of the same volume of compressed air and reducing the static stiffness of the air spring. Its dynamic stiffness adjustment process is: when the vehicle is stationary and in a relatively stable running state, the body does not move up and down much, the airflow flowing t...

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Abstract

The invention discloses an air spring with static stiffness and dynamic stiffness adjusted by using volume occupying and floating throttle plate. An air spring in a modern automobile suspension system plays an important role of improving the smoothness and the control stability of an automobile and protecting a road and goods. For effectively adjusting the dynamic stiffness of the air spring by people, a main air chamber is connected with an auxiliary air chamber and the adjustment of the dynamic stiffness is realized by changing a throttling valve on a channel between the main air chamber and the auxiliary air chamber. A control signal for stiffness adjustment is acquired by a multi-path sensor and is transmitted to a computer for processing and then an action instruction is transmitted; and the stiffness of the air spring is adjusted. However, the control mode has the defects of great lag during response and high cost. The novel air spring with dynamic stiffness adaptively adjusted according to pressure difference, which is disclosed by the invention, is developed for solving the difficult problem. According to the air spring, the throttling pressure difference on the channel between the main air chamber and the auxiliary air chamber is controlled by directly using a pressure signal in the airbag, so that the aim of continuously adjusting the stiffness is achieved. The throttling valve is controlled by using a reverse impact pressure difference between the main air chamber and the auxiliary air chamber, so that the impact caused by a convex block on the automobile body is weakened. The air spring has the advantages of simple structure, quick and reliable response, low cost and convenience in adjustment of the static stiffness.

Description

1. Technical field: [0001] The invention relates to an air spring with a volumetric occupancy adjustment static stiffness and a floating throttling plate adjustment dynamic stiffness used for a vehicle air suspension. This air spring is especially suitable for passenger buses, city public buses, freight vehicles, as well as rail transit vehicles, special vehicles and high-end cars. 2. Background technology: [0002] In order to improve the ride comfort of the car, improve ride comfort and handling stability, and reduce vehicle damage to roads and goods, air springs are widely used in the suspension systems of their transport vehicles in developed countries. 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 people's continuous improvement of vehicle performance,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/04F16F9/44F16F9/50
Inventor 杨洁
Owner 杨洁
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