1、 毕毕 业业 论论 文文 题 目 卧式组合钻孔专用机床液压系统 学 生 姓 名 系 部 名 称 自动化系 专 业 班 级 机电一体化二班 指 导 教 师 起 止 时 间 1 摘要 本文首先对液压系统进行工况分析,通过分析计算,绘制速度、负载循环图,初步选 定液压缸工作压力,并计算加紧液压缸和工作缸尺寸以及各阶段流经液压缸的流量; 其次根据液压系统供油方式、调速方式、速度换接方式以及加紧回路的选择拟定液压 系统图,并且对系统工作状态分析;再次通过对流通各元件的的流量的计算,合理选 择液压系统元件; 最后通过对压力损失和系统升温的验算, 对液压系统进行性能分析, 达到要求。 关键词:工况分析;液压
2、系统原理图;液压泵;液压阀;压力损失 2 AbstractAbstract According to the requirements of the mission statement title, the first condition of the hydraulic system analysis, through analysis and calculation, rendering speed, duty cycle graph, the initial selection of hydraulic cylinders working pressure, and calculated
3、 to intensify the work of hydraulic cylinders and cylinder size and flow of the various stages The hydraulic cylinder of the flow; second oil hydraulic system according to mode, speed mode, the speed-for-access approach and the choice of stepping up the development of hydraulic system circuit diagra
4、m and working status of the system; once again flow through various components of the flow Calculation , a reasonable choice of hydraulic system components; last through the pressure loss and temperature of the checking system, hydraulic system performance analysis, meet the requirements. Key words: Engineering Analysis; hydraulic system diagram; hydraulic pump; hydraulic valve; pressure loss 3 摘要摘要 1 第一章第一章 绪论绪论 . 5 1.1 液压传动的定义及发展概况液压传动的定义及发展概况 . 5 1.1.1 液压传动的定义液压传动的定义 . 5 1.1.2 液压传动的发展