煤矿井下大流量泥浆泵车液压系统设计与研究

针对煤矿井下大流量泥浆泵车的使用要求以及开式液压系统和闭式液压系统的特点，提出了大流量泥浆泵车液压系统的总体方案。详细叙述了液压系统中泥浆泵马达回转系统和履带行走系统的组成元件、工作原理及主要液压部件功能。根据泥浆泵车的性能要求对液压系统中重要元件进行了参数计算和选型。考虑到煤矿井下工作环境及闭式液压系统的应用，在液压系统中采取了三种相应的冷却措施来提高系统的散热效果，并对冷却器进行了计算选型以满足大流量泥浆泵车液压系统的散热需求，能较好地适应于煤矿井下应用。

Design and Research on Hydraulic System of Large Flow Mud Pump in Coal Mine Underground

According to the application requirements of large flow mud pump truck and the characteristics of open hydraulic system and closed hydraulic system, the hydraulic system of large flow mud pump truck is designed, and the working principle and functions of main hydraulic components are described in detail. Based on the performance parameters of mud pump truck, the important hydraulic components are calculated and selected. Considering the requirements of working environment and closed hydraulic system heat dissipation in coal mine underground, three corresponding cooling measures are adopted to improve the heat dissipation effect of the system, which can be well adapted to underground application in coal mine.