棒材轧机液压系统设计说明书.doc

唐山学院毕业设计PAGEV毕业设计棒材轧机液压系统设计说明书目录1.前言·······································································································12.绪论·······································································································22.1液压技术概况··················································································22.2本课题主要研究内容·········································································22.3设计步骤························································································33.液压系统的工作要求·················································································53.1液压系统的组成···············································································53.2棒材轧机液压系统工作原理·······························································53.3液压系统参数计算············································································53.3.1确定液压缸负载·····································································53.3.2液压缸主要尺寸的确定····························································63.3.3确定液压泵的流量、压力和选择泵的规格·······························73.3.4与液压泵匹配的电动机的选定··············································84.确定液压系统方案、绘制液压系统原理图·····················································94.1确定液压系统方案············································································94.1.1液压基本回路········································································94.1.2选择液压回路········································································94.2绘制液压系统图·············································································104.2.1将基本回路组成系统原理图···················································104.2.2液压元件选择·······································································114.3液压系统的验算·············································································114.3.1系统压力损失计算································································124.3.2系统效率计算·······································································135.液压站的设计·······