巴赫曼CPU模块MPC240现货MPC240

MPC240

MPC240

液压系统原理图就是用图形符号来表示液压技术领域的图形，就像机械制图一样，目的是便于阅读、分析、设计和绘制，用规定的元件图形符号和线条来表达液压系统工作原理。

一个完整的液压系统原理图由工作介质、动力部分、执行部分、控制部分、辅助部分共五部分组成，工作原理是液压油在封闭的系统中进行了两次能量转换，静压力能和机械能的转换，而转换的过程是由控制元件完成的。

(1)了解液压系统的用途，将液压系统原理图依次分成执行元件、动力元件、控制元件三大块，再根据主机要求，掌握执行元件的动作及要求。

(2弄清楚各种液压元件的类型，性能，相互间的联系和功用。先弄清楚动力元件的种类:单泵，多泵;定量，变量;单供，合流;再阅读明白液压缸或液压马达;再次阅读并了解各种控制装置及变量机构;后阅读和掌握辅助装置。在此基础上，根据工作循环和工作性能要求分析将系统分为对应数量的基本回路，并在液压传动原理图上逐一地查找出每个回路。

(3)按照工作循环表，仔细分析并依次写出完成各个动作的相应进油路油和回头路液流经路线。为了便于分析，在分析之前好将液压系统中的每个液压原件和各条油路编上号码。这样，对分析复杂油路，动作较多的系统尤为重要。写油液流经路线时要分清主油路和控制油路。对主油路，应从液压泵开始写，一直写到执行元件，这就构成了进油路线;然后再从执行元件回油写到油箱闭式系统回到液压泵。这样分析，目标明确，不易混乱。

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