原文：
泥浆泵是在钻探过程中，向钻孔输送泥浆或水等冲洗液的机械。泥浆泵是钻探机械设备的重要组成部分。它的主要作用是在钻进过程中将泥浆随钻头钻进注入井下，起着冷却钻头，清洗钻具、固着井壁、驱动钻进，并将打钻后岩屑带回地面的作用。在常用的正循环钻探中﹐泥浆泵是将地表冲洗介质─清水﹑泥浆或聚合物冲洗液在一定的压力下﹐经过高压软管﹑水龙头及钻杆柱中心孔直送钻头的底端﹐以达到冷却钻头﹑将切削下来的岩屑xx并输送到地表的目的。常用的　泥浆泵是活塞式或柱塞式的﹐由动力机带动泵的曲轴回转﹐曲轴通过十字头再带动活塞或柱塞在泵缸中做往復运动。在吸入和排出阀的交替作用下﹐实现压送与循环冲洗液的目的。

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译文：
Is in the process of drilling mud to the drilling mud or water transmission fluid mechanics. Drilling mud is an important part of mechanical equipment. Its main role is in the drilling mud during the process of drilling with the drill bit into the pit, playing the bit cool, clean drilling, fixing shaft, driven drilling, and drilling cuttings back to the ground after the role. Are in common circulation drilling, the mud is fresh water surface flushing medium ─ ﹑ mud or polymer fluids in a certain pressure, through high-pressure hose taps and drill column ﹑ direct-drill the center hole of the bottom, in order to achieve cooling the bit to cut down ﹑ debris removal and the purpose of conveying to the surface. Common mud pump is a piston or plunger, driven by the power machine rotary pump crankshaft, pistons drove the crankshaft through the crosshead or piston in the pump cylinder reciprocating motion to do. In the alternating suction and discharge valve under the action of pressure delivery and achieve the purpose of circulating fluid.