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1台日本加藤公司产NK-400E型汽车起重机,配备了美国产排量分别为100 L/min、100 L/min和40 L/min三联齿轮泵(年代久远,其完整型号看不清)。由于长期使用磨损严重,性能下降,须更换新件。若直接更换进口件,等待时间长,且费用昂贵,为此我们决定用国产件代替。通过对徐州产KP80/80/40型三联齿轮泵与美国产三联齿轮泵比较得知,这2种液压泵的外形尺寸、进出油口与泵轴连接位置基本一样,旋转方向(左旋)、转速(2000 r/min)和工作压力(21 MPa)均相同,徐州产KP80/80/40型三联齿轮泵第1、2联的排量
A Kato NK-400E truck crane manufactured by Japan Kato Company is equipped with a triple gear pump with a displacement of 100 L / min, 100 L / min and 40 L / min in the United States. Due to long-term use of wear and tear, performance degradation, to be replaced with new pieces. If the direct replacement of imported parts, waiting a long time, and expensive, for which we have decided to use domestic-made pieces instead. Through the comparison of the KP80 / 80/40 type triple gear pump in Xuzhou and the triple gear pump in the United States, the external dimensions of the two kinds of hydraulic pumps are basically the same as the connecting positions of the pump shaft, the rotation direction (left-hand rotation) (2000 r / min) and working pressure (21 MPa) are the same, Xuzhou production KP80 / 80/40 type triple gear pump displacement 1,2