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轴向柱塞泵(马达)是重要的液压元件之一,国外现已向高速、高压、高效发展。其配油面与配油盘、柱塞孔和柱塞形成两对摩擦副。该缸体在高速、高压下工作,承受着复杂的高频率的多变载荷。因此要求缸体具有较高的疲劳强度和良好的减磨性。缸体采用单一材质难以满足这些要求。由于北京液压件二厂引进西德海卓玛蒂克公司弯轴泵生产的需要,我所与北京液压件二厂合作进行了双金属缸体的研制,经过三年多的研制已投入批量生产。该种缸体各种性能和寿命考核如下:
Axial piston pump (motor) is one of the important hydraulic components, foreign countries are now to high-speed, high-pressure, efficient development. Its oil level with the oil pan, plunger hole and plunger to form two pairs of friction pair. The cylinder in high-speed, high-pressure work, to withstand the complex high-frequency variable load. Therefore, the cylinder body with high fatigue strength and good wear resistance. Cylinder with a single material difficult to meet these requirements. Due to the introduction of the Beidai Hydraulic Pieces Plant’s need for the production of curved shaft pumps by the West German company Hai Zhuomadike, I developed the double metal cylinder with the cooperation of Beijing No.2 Hydraulic Plant. After more than three years of development, it has been put into mass production . The kinds of cylinder performance and life expectancy assessment are as follows: