文档介绍：摘 要
水平定向钻机铺管技术是目前应用最广泛的非开挖铺管技术之一，可用于穿越道路、河流、建筑物等障碍物铺设管线，具有快速、高效、不破坏环境及影响交通等突出优点。在当今中国基础设施建设如火如荼的大环境下，拥有广泛的市场前景。目前，对比与国外先进的水平定向钻机研发水平，我国的钻机研发还处于一个比较落后的水平，因此加快水平定向钻机的研发工作具有明显的社会意义和经济意义。
钻机的液压系统直接负责整机的控制和传动系统，直接影响到系统的各项性能指标，是钻机的关键技术。本文叙述了水平定向钻机液压系统设计过程。首先，比较详尽地描述了水平定向钻机的工作原理、各项性能指标、设计参数、结构组成，同时分析了各机构的工况和负载情况，为下一步液压系统的设计提供设计依据。然后根据前面分析的结果，对液压系统进行设计，并合理选择各子系统的液压元件，最后，进行液压系统的性能验算。本文设计的液压系统可以使发动机-液压系统的性能达到较好的状态，发动机功率利用率、液压系统传动效率以及钻机的作业效率也比较高。
关键词：水平定向钻机；液压系统设计；液压元件选择；性能验算
Abstract
Horizontal Directional Drill pipe laying technology is currently the most widely used technique for trenchless pipe-laying can be used across the roads, rivers, buildings, obstacles such as laying pipelines, with a fast, efficient, without damaging the environment and highlight the advantages of traffic. Infrastructure construction in China today in full swing environment, have broad market prospects. At present, the comparison with foreign advanced level of research and development of horizontal directional drilling, drilling rig in China is still in a backward R & D levels, accelerate research and development of horizontal directional drilling has obvious social significance and economic significance.
Drilling machine hydraulic system is directly responsible for the control and transmission system, directly affect the system performance is the key technology of drilling rig. This paper describes the design of the hydraulic system of horizontal directional drilling process. First, more detailed description of the horizontal directional cobalt machine works, the performance indicators, design parameters, structure, and analyzes the various agencies working conditions and load conditions, for the next design of the hydraulic system design basis. Then the previous results of the analysis of the hydraulic system design, and a reasonable choice of hydraulic components of each subsystem, and finally, checking the performance of the hydraulic system. This design al