直动式液压往泵设计.doc

直动式液压往复泵设计 摘 要:该毕业设计是对直动式液压往复泵的设计。往复泵借助于活塞（柱塞）在液缸工作腔内的往复运动，使工作腔容积产生周期性变化来达到输送液体的目的，它是把机械能转化为压力能的装置。此种泵的流量只取决于工作腔容积变化值及在单位时间内的变化次数（频率），而在理论上与排出压力无关。液压往复泵以有压液体作为动力源，具有效率高、吸入性好、输送介质广泛等优点，在石油钻井、油田注化学剂等方面发挥着不可替代的作用。目前在石油钻机上广泛使用的是机动往复泵，这种往复泵体积大、重量大、维护难度高、流量不均度高，不再能满足现代生产要求。 本次设计是通过对已知数据的分析以及参考相关资料完成的，该往复泵系缸作用泵主要由部分组成。The Design of Hydraulically-actuated Reciprocating Pump Abstract: This graduation project is to the hydraulically-actuated reciprocating pump design. The reciprocating pump is draws support the piston/plunger in fluid cylinder work cavity reciprocal motion, causes the work cavity volume to have the periodic variation toachieve the transportation liquid the goal. It is the equipment transforms the mechanical energy as the fluid pressure energy. This kind pumps the current capacity is only decided by the work cavity volume change value and in the unit time change number of times, and in theoretically has nothing to do with the delivery pressure. Hydraulic reciprocating pump is driven by variable pumps and pressure liquid. In oil drilling, oil field injection of chemical agents hydraulically-actuated reciprocating pump play an irreplaceable role. However, the conventional single-acting piston triplex reciprocating pump too bulky, difficult to maintain, and has a high flow inequality. It has less function to be used for current industrial development. This design through completes to the known data analysis aswell as the reference correlation data, this hydraulically-actuated reciprocating pump is the three-cylinder single-acting pump, mainly partially is composed by the fluid body and the Hydraulic cylinder. Through its pump tube, valve and other parts and complete machine for specific analysis and calculation, has completed this design task. Key word: Hydraulically-actuated reciprocating pump；Pump valve；lunger；design 目 录 绪 论 1 往复泵的结构和工作原理 1 往复泵的特点 3 往复泵的分类 4 液压往复泵 5 往复泵的应用于发展 5 液压往复泵总体方案设计 8 液压往复泵的工作原理 8 往复泵整体结构设计 11 液压泵的选择 11 液力端结构形式的选择 11 动力端和液力端的链接