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水平定向钻机回转液压系统驱动动力头主轴旋转,主轴带动回转进行钻进作业。回转液压系统分为开式系统和闭式系统,开式系统结构简单、制造成本低,但传动效率较低,主要用于小吨位水平定向钻机;闭式系统结构复杂,但传动效率较高,广泛应用于中、大吨位水平定向钻机。本文介绍闭式回转液压系统工作原理及回转无力排查方法。1.工作原理水平定向钻机闭式回转液压系统主
Horizontal Directional Drilling Rig Hydraulic system drives the power head to rotate the spindle, and the spindle drives the turn for drilling operation. The swing hydraulic system is divided into an open system and a closed system. The open system has the advantages of simple structure, low manufacturing cost but low transmission efficiency, and is mainly used for a small tonnage horizontal directional drilling machine. The closed system has a complicated structure but a high transmission efficiency, Widely used in medium and large tonnage horizontal directional drilling machine. This article describes the closed-loop hydraulic system working principle and rotary weakness investigation method. 1. Working principle Horizontal directional drilling rig closed rotary hydraulic system main