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Air-pressure-adjustable type oil gas suspension system, air pressure adjusting method thereof and engineering vehicle

An oil-pneumatic suspension and air pressure adjustment technology, which is applied to suspensions, elastic suspensions, vehicle components, etc., can solve the problems of complex control, increased cost, and difficulty in vehicle layout space, so as to improve work performance, increase air pressure, and effectively Conducive to the effect of smooth running and ride comfort

Active Publication Date: 2013-04-03
ZOOMLION HEAVY IND CO LTD
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AI Technical Summary

Problems solved by technology

This technical solution has obvious disadvantages. Configuring multiple air-filled accumulators for vibration damping for each suspension valve not only greatly increases the cost, but also makes it difficult to meet the layout space of the vehicle with multiple air-filled accumulators for vibration damping. Multiple valves to switch, which is very complicated to control

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  • Air-pressure-adjustable type oil gas suspension system, air pressure adjusting method thereof and engineering vehicle
  • Air-pressure-adjustable type oil gas suspension system, air pressure adjusting method thereof and engineering vehicle

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Embodiment Construction

[0052] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the following specific embodiments. .

[0053] Generally speaking, the main technical concept of the air pressure adjustable oil-pneumatic suspension system of the present invention is to increase the air pressure adjustment unit ingeniously on the basis of the existing oil-pneumatic suspension mechanism of engineering vehicles, so as to realize the inflation of the oil-pneumatic suspension mechanism for vibration reduction. The air pressure adjustment of the air-filled accumulator makes the air-filled accumulator for shock absorption of the oil-pneumatic suspension mechanism basically maintain a relatively ideal air pressure state. That is to s...

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Abstract

The invention discloses an air-pressure-adjustable type oil gas suspension system, which comprises an oil gas suspension mechanism which is provided with inflatable energy accumulators (16 and 17) for reducing vibration, and also comprises an air pressure adjusting unit, wherein the air pressure adjusting unit comprises an air chamber serving as an air source, and the volume of the air chamber can be adjusted; inflation openings of the inflatable energy accumulators (16 and 17) for reducing the vibration are respectively connected onto the air chamber through respective branch air channels (8); and a branch air channel on-off valve (18) is arranged on each branch air channel (8). Besides, the invention also discloses an air pressure adjusting method for the air-pressure-adjustable type oil gas suspension system and an engineering vehicle. The air-pressure-adjustable type oil gas suspension system has the advantages that through additionally arranging the air pressure adjusting unit in the oil gas suspension mechanism, when the air pressure drops due to leakage and the like of the inflatable energy accumulators for reducing the vibration of the oil gas suspension mechanism, the energy accumulators can be conveniently inflated through the air pressure adjusting unit to increase the air pressure, so the working performance of the oil gas suspension mechanism is relatively effectively improved.

Description

technical field [0001] The invention relates to a vehicle suspension, in particular to an air pressure adjustable oil-pneumatic suspension system. On this basis, the present invention relates to an air pressure adjustment method of the air pressure adjustable oil-pneumatic suspension system. In addition, the present invention also relates to an engineering vehicle comprising the air pressure adjustable oil-pneumatic suspension system. Background technique [0002] Construction vehicles such as wheel loaders, mine dump trucks, wheel excavators, and mobile cranes (typically all terrain cranes) widely employ hydro-pneumatic suspension mechanisms. The oil-pneumatic suspension mechanism used on engineering vehicles usually has the function of driving the lifting of the frame or body and the function of rigid-flexible switching. The oil-pneumatic suspension mechanism is already a relatively mature chassis suspension technology. Its main principle is to absorb the vertical impact...

Claims

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Application Information

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IPC IPC(8): B60G17/04
Inventor 郭堃宁介雄
Owner ZOOMLION HEAVY IND CO LTD
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