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介绍了热模锻液压机的结构、主要性能参数和使用要求,设计出滑块动作回路,并详细论述了其组成部分的工作原理。回路的集成控制阀块采用二通插装阀控制油路中的油流方向、压力和流量,具有流阻小、响应快、内泄漏少、启闭特性和过载保护性能好的特点。采用比例柔性泄压技术将比例溢流阀的设定压力按一定曲线缓慢调整为0,达到缓慢卸压的目的,使压机运行平稳,降低震动和噪音;并设有防止滑块支承失效的双阀支承阀组及可靠的压力安全保险装置,使滑块动作可靠和稳定。各控制阀按程序动作,实现滑块0~15 mm·s-1工作速度的无级可编程控制,压机效率可提高到40 s完成一次压制循环,满足设备使用和各项性能参数的要求。实践证明设计合理、性能可靠,可在相关行业上使用。
The structure, main performance parameters and requirements of the hot die forging hydraulic press are introduced. The slide action loop is designed and the working principle of its components is discussed in detail. The integrated control valve block of the circuit adopts the two-way cartridge valve to control the flow direction, pressure and flow in the oil circuit. It has the characteristics of small flow resistance, fast response, less internal leakage, good opening and closing characteristics and overload protection performance. Proportional pressure relief valve technology will be used to set the proportional relief valve pressure slowly adjusted to 0 according to a certain curve to achieve the purpose of slow pressure relief so that the smooth operation of the press to reduce vibration and noise; and to prevent the slider support failure Double valve support valve and reliable pressure safety devices, the slider action reliable and stable. Each control valve moves according to the program, realizing the stepless programmable control of the operating speed of the slider from 0 to 15 mm · s-1. The press efficiency can be increased to 40s to complete a pressing cycle to meet the requirements of equipment usage and various performance parameters . Practice has proved that the design is reasonable, reliable performance, can be used in related industries.