【摘要】 为了提高现有废钢剪切机工作效率低、剪切频率慢等问题,在原有龙门剪的基础上设计10 MN龙门剪切机液压系统。此次设计采用了多泵耦合系统,以及间歇和连续供油相结合的方式和各剪切动作转换无时间间隔的控制方式,并用AMESim对剪切回路液压系统进行仿真分析。仿真结果显示:施加10 MN负载,除了剪切机在动作转换时液压缸流量有一定的波动外,剪切频率比原来提高了22.1%,系统的压力和流量均满足要求。更多还原

【Abstract】 In order to improve the working efficiency and shear frequency of the existing steel scrap shearing machine,a 10 MN gantry shear hydraulic system was designed based on the original gantry shear.In this design,a multi-pump coupling system,the combination of intermittent and continuous oil supply and the control method of each shearing action without time interval were used.AMESim simulation analysis of the shear circuit hydraulic system was carried out.The simulation results show that under 10 MN load,the shearing frequency is increased by 22.1%,and the pressure and flow rate of the system meet the requirements,except that the hydraulic cylinder flow rate has a certain fluctuation when the shearing machine action switching.更多还原