Vehicle, vehicle leveling system, vehicle leveling method and oil-gas suspension leveling device

A technology of oil and gas suspension and leveling device, which is used in vehicle parts, transportation and packaging, suspension, etc., can solve the problem of not being able to achieve uniform load distribution, and achieve simple structure, balanced load distribution, and reduce excessive tire wear. Effect

Inactive Publication Date: 2014-11-05
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to provide a vehicle, a vehicle leveling system, a vehicle leveling method and an oil-pneumatic suspension leveling device to solve the problem that the vehicle leveling system in the prior art cannot achieve uniform load distribution

Method used

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  • Vehicle, vehicle leveling system, vehicle leveling method and oil-gas suspension leveling device

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Embodiment Construction

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0028] According to the first aspect of the present invention, a kind of oil and gas suspension leveling device is provided, please refer to figure 1 , the oil-pneumatic suspension leveling device includes at least one first oil cylinder 11, at least one second oil cylinder 12, the first oil cylinder control valve group 20 and the second oil cylinder control valve group 30, at least one first oil cylinder 11 and at least one second oil cylinder 12 are arranged in one-to-one correspondence, and the first oil cylinder 11 and the second oil cylinder 12 arranged in one-to-one correspondence are symmetrically installed between the axle 70 and the vehicle frame of the vehicle, and the first working oil port of the first oil cylinder controls the valve group ...

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Abstract

The invention provides a vehicle, a vehicle leveling system, a vehicle leveling method and an oil-gas suspension leveling device. In the oil-gas suspension leveling device, a first oil cylinder and a second oil cylinder which are correspondingly arranged are symmetrically mounted between a vehicle shaft and a vehicle frame of the vehicle, a first working oil opening of a control valve group of the first oil cylinder is respectively communicated with a rodless cavity of the first oil cylinder and a rod cavity of the second oil cylinder, and a first working oil opening of a control valve group of the second oil cylinder is respectively communicated with a rodless cavity of the second oil cylinder and a rod cavity of the first oil cylinder; and the oil-gas suspension leveling device also comprises a pressure balancing valve, wherein one end of the pressure balancing valve is communicated with the first working oil opening of the control valve group of the first oil cylinder, and the other end of the pressure balancing valve is communicated with the first working oil opening of the control valve group of the second oil cylinder. The pressure difference between the first oil cylinder and the second oil cylinder is over the set value, the first working oil opening of the control valve group of the first oil cylinder is communicated with the first working oil opening of the control valve group of the second oil cylinder through the pressure balancing valve.

Description

technical field [0001] The invention relates to an engineering vehicle system, and more specifically, to a vehicle, a vehicle leveling system, a vehicle leveling method and an oil-pneumatic suspension leveling device. Background technique [0002] At present, more and more heavy-duty engineering vehicles adopt the oil-pneumatic suspension system, and its height-adjustable function greatly improves the off-road passing ability and side slope driving ability of the vehicle. Generally, the oil-pneumatic suspension system has an automatic leveling function. Before driving, the telescopic rod of the suspension cylinder of the vehicle is extended to the same length to maintain the vehicle's posture balance. [0003] The vehicle leveling system in the prior art realizes attitude adjustment such as raising and lowering the vehicle body by controlling the valve group. Generally, there is a control valve group at the front left, front right, rear left, and rear right. Combined with t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/015
Inventor 郭堃
Owner ZOOMLION HEAVY IND CO LTD
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