Study on Piston Cushion Structure of High-speed Hydraulic Cylinder

Abstract

Abstract:

The theoretical analysis and experimental research for the cushion process of a high-speed hydraulic cylinder with a piston cushion structure was introduced. The whole cushion process was divided into two stages, the orifice throttle cushion and the tapered gap throttle cushion. A mathematical model of the cushion process was established, based upon the mathematical model, the influence of the structural parameters on the cushion velocity and the pressure of cushion chamber was analyzed. The experiment for the cushion process of two sets of prototypes with different structural parameters was done. The theoretical and experimental results are consistent with each other basically.

Key words: hydraulic system, high-speed hydraulic cylinder, cushion structure, cushion process

摘要：

对采用活塞式缓冲机构的高速液压缸的缓冲过程进行了理论分析和实验研究。将整个缓冲过程分为孔口节流缓冲、锥形缝隙节流缓冲两个阶段,建立了该过程的数学模型,利用数学模型,分析了结构参数对缓冲速度及缓冲腔压力的影响。对两组不同结构参数的样机的缓冲过程进行了试验,理论分析结果与试验结果基本一致。

关键词: 液压系统, 高速液压缸, 缓冲机构, 缓冲过程

CLC Number:

TH137

Zhao Wei, Huang Yuzhao, Yu Zheqing, Ruan Jian. Study on Piston Cushion Structure of High-speed Hydraulic Cylinder[J]. China Mechanical Engineering, 2014, 25(8): 1033-1036.

赵伟, 黄钰曌, 俞浙青, 阮健. 高速液压缸活塞式缓冲机构的研究[J]. 中国机械工程, 2014, 25(8): 1033-1036.

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Study on Piston Cushion Structure of High-speed Hydraulic Cylinder

高速液压缸活塞式缓冲机构的研究

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