摘 要四柱液压机由主机与控制机构两大部分组成。液压机主机部分包括液压缸、横梁、立柱与充液装置等。动力机构由油箱、高压泵、控制系统、电动机、压力阀、方向阀等组成。液压机采纳 PLC 控制系统，通过泵和油缸与各种液压阀实现能量的转换，调节和输送，完成各种工艺动作的循环。该系列液压机具有独立的动力机构和电气系统，并采纳按钮集中控制，可实现搬运和自动两种操作方式。该液压机结构紧凑，动作灵敏可靠，速度快、能耗小、噪音低，压力和行程可在规定的围任何调节，操作简单。在本设计中，通过查阅大量文献资料，设计了液压缸的尺寸，拟订了液压原理图，按压力和流量的大小选择了液压泵，电动机、控制阀、过滤器等液压元件和辅助元件。关键词：四柱 液压机 PLCAbstractThe four-pillars hydraulic press is divided into two parts, host machine and control mechanism. Hydraulic press host machine is make up of hydraulic cylinder, beam, upright, prefull valve and so on Dynamic mechanism is make up of tank, high pressurepump, control systems, electromoto,pressure valve, direction valve and so on Hydraulic press control systems adopt plcil will be come true enrgy conversion, regulate and transport, all kinds of technical motions cyle, through control pump, hydraulic sylinder and all kinds of hydraulic valve. The series hydraulic machine is an independent body and the electrical power system and centralized control buttons used achieve both manual and automatic operation mode.This hydraulic system framework is compact, movement keen reliable, the speed is quick, the energy consumption is small, the noise is low, the pressuer and the traveling schedule may adjust willfully in the stipulation scope, the operation is simple. In this design, through the consult massive literature material, has designed the hydraulic cylinder size, has drafted the hydraulic perssure schematic diagram. According to the pressure and the current capacity size choose ...
