毕业设计说明书---低压液压泵试验台及液压系统设计

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1、 I 低压液压泵试验台及液压系统 摘要 液压泵作为液压系统的动力源， 这的性能对整个液压系统的性能起着关键作 用，有着巨大的影响。因此，液压泵的性能测试系统研究的意义极为重要。 液压泵是液压系统中将机械能转换为液压能的能量转换元件， 它是由原动机 驱动把输入的机械能转换成液压能再以压力和流量的形式输送到系统中去。 液压 泵作为液压系统的动力源(或动力元件) 是整个液压系统的心脏它的性能的好坏 对整个液压系统有重要的影响并将直接影响到系统的稳定性。 随着液压技术和计 算机控制技术的进一步发展船舶工程与各类机械工程对高性能高品质液压泵的 要求量越来越大，因此对液压泵动态性能测试研究有重要的实际意义

2、。 本课题是液压泵变频调速试验台及液压系统的设计， 即要按照液压泵出厂试 验台的标准来设计，设计精度为 GB7936-87 中规定的 B 级精度。其是属于液压泵 出厂试验检测的最高标准。其主要的测试内容为：气密性试验、排量检查试验、 容积效率检查试验、超载试验、冲击试验。在试验台中选用最合理的液压元件、 成熟的测量系统、 经典的电气控制系统等一系列的系统来最终完成液压泵试验台 及其液压系统，以使其性能达到最优。 关键字：液压泵，试验台，液压系统，液压泵试验台，变频调速 II Low pressure hydraulic pump test platform and hydraulic syst

3、em Abstract The hydraulic pump as hydraulic systems power supply, this performance is playing the crucial role to the entire hydraulic systems performance, has the huge influence. Therefore, hydraulic pumps performance test system research significance great importance. The hydraulic pump is that hy

4、draulic pressure system Lieutenant General mechanical energy changes into the energy conversion component that hydraulic pressure can , it is that hydraulic pressure can be transported to going to in system again with pressure and the rate of flow form drive input mechanical energy from the prime mo

5、ver changing Cheng. The hydraulic pump is the systematic hydraulic pressure driving force source (or the driving force component) is the entire systematic hydraulic pressure heart its function goodness and badness has important effect will have direct impact to the stability to system together to en

6、tire hydraulic pressure system. Amounts are more and more big with the fact that the hydraulic pressure technology and computer cntrol technology going a step further develop demand of boat and ship project and mechanical engineering of all kinds to high-quality hydraulic pump of high-performance , performance test go into has important actual meaning therefore to hydraulic pump development. This topic is the hydraulic pump frequency conversion velocity modulation test platform and hydrauli