汽车板簧分选实验压力机液压传动课程设计.docVIP

液压传动课程设计 合肥工业大学宣城校区 设计题目：汽车板簧分选实验压力机（立式）的设计 专业班级： 机械设计制造及其自动化12-3班 学 号： 姓 名： 指导老师： 2015年6月25日 目录 1、课程设计的任务与安排·······································2 1.1 设计题目·····················································2 1.2 设计要求·····················································2 1.3 进度安排·····················································2 2、工况分析·····················································3 3、液压缸主要参数的确定·······································4 3.1 初选液压缸的工作压力·········································4 3.2 计算液压缸的尺寸·············································4 3.3 绘制液压缸的工况图···········································5 4、拟订液压系统原理图·········································7 5、选取液压元件················································9 6、验算液压系统的性能·········································11 6.1液压系统压力损失的验算和泵压力调整····························11 6.2液压系统发热温升的验算········································12 7、主要零件强度校核············································13 7.1缸筒壁厚校核··················································13 7.2活塞杆直径校核················································13 7.3螺栓校核······················································13 总结·····························································15 参考文献·························································16 1、课程设计的任务与安排 1.1 设计题目 汽车板簧分选实验压力机（立式），液压缸对试件（汽车板簧）施加的最大压力为30KN，动作为：快进→工进→加载→保压→慢退→快退， 快进速度14mm/s，工进速度0.4mm/s，要求液压缸上位停止、下行时、保压后慢退不能失控。最大行程600mm。试完成： （1）系统工况分析； （2）液压缸主要参数确定； （3）拟订液压系统原理图； （4）选取液压元件； （5）集成原理图； （6）集成块零件图。 1.2 设计要求 （1）设计说明书1份，不少于6页，A4纸，打印或手写 （2）集成块回路图2张，A4。一张原理图，一张集成原理图，CAD或手工绘制。 （3）下列图纸之一：（CAD或手工绘制） 集成块零件图1张，A2或A3； 上述文件资料装入课程设计档案袋，档案袋封面写明内装资料的明细表。 1.3 进度安排（1周 ） 第1天：上午：讲课、明确课题要求、借参考资料，计算（工况、主参数等）。 第2天：原理图拟定、元件选择 第3天：集成块回路图，分工完成（集成块零件图） 第4天：绘制集成块三维图，工程图，编写设计说明书。 第5天：上午：编写设计说明书。下午：交设计档案袋，答辩。 工况分析 暂不考虑回油腔的背压负载、惯性负载和摩擦阻力，因此，需要考虑的负载有： 工作负载 F = 30000N ：液压缸的