论文部分内容阅读
本文所介绍的水下机械手液压控制系统为一典型的具有变回油压力封闭式系统。文中阐述了此种系统液压动力机构的设计原理及静、动态参数的分析计算方法。对于在变回油压力下,由四通阀控制的非对称油缸的静态特性进行了详细的分析。给出了在不同回油压力下,不同面积比的非对称油缸、阀的负载压降及最大空载流量的变化规律。这对于确定水下机械手的液压动力机构的参数提供了依据。
The underwater manipulator hydraulic control system introduced in this paper is a typical closed system with variable oil pressure. The paper describes the design principle of the system hydraulic power mechanism and the analysis and calculation method of static and dynamic parameters. The static characteristics of an asymmetric cylinder controlled by a four-way valve are analyzed in detail under the condition of changing back to oil pressure. The variation of load pressure drop and maximum no-load flow of asymmetric cylinders and valves with different area ratios under different oil return pressures are given. This provides a basis for determining the parameters of the hydraulic power mechanism of the underwater manipulator.