一、前言液压支架立柱端盖拆装机是维修综采设备时用来拆装液压支架立柱端盖的专用工装设备。因其可显著减轻工人的劳动强度,提高工作效率而受到维修现场工人的欢迎,并广泛使用。目前应用较多的机型是低速大扭矩马达直接驱动卡盘推移千斤顶推进立柱,定量泵节流调速运转时的稳定性很差,有时会出现爬行现象;由于马达的输出功率较大,采用效率低的开式节流调速系统,也会造成较大功率损失;端盖和立柱缸体间是螺纹 I. Introduction Hydraulic support column end cap disassembly machine is used to disassemble the hydraulic support column cover dedicated tooling equipment for maintenance of fully mechanized mining equipment. Because it can significantly reduce the labor intensity of workers, improve work efficiency by the repair site workers welcome, and widely used. At present, more models are low-speed high-torque motors directly drive the jack to push the jacks to promote the column, the metering pump throttling speed stability when running poor, and sometimes there will be crawling phenomenon; due to the motor output power is larger, the use of Low efficiency open throttling speed control system, will result in greater power loss; End cap and column cylinder thread between