为揭示高压轴向柱塞泵滑靴副摩擦磨损性能,需提供1台高精度、高性能以及主轴转速恒定可靠的滑靴副摩擦磨损试验机。但在测试滑靴副时,试验机主轴的速度调控和位移的精确控制非常难以把握。当试验机主轴转速在3 000 r/min的基础上升高时,试验机油温急剧升高,会对滑靴副性能测试的精度产生极大的影响。针对MCMS10试验机的电控系统,设计出硬件图,采用满意PID算法控制其主轴转速和位移两个参数。最后通过组态软件设计实时监控画面并开展试验分析。结果表明:将满意PID算法运用到MCMS10试验机电控系统中,不但精度非常高,而且在主轴转速约为3 200 r/min时,油温始终保持在65 ℃左右。

In order to reveal the friction and wear performance of the slipper pair of highpressure axial piston pump, a highprecision, highperformance the slipper pair friction tester with electronic control and a stable and reliable spindle speed was required. However, in the slipper pair test, it was very difficult to realize the precise control of the spindle speed and the tester displacement. And when the spindle speed of the tester increased from 3 000 r/min, the oil temperature of the tester rose sharply, which would have a great influence on the accuracy of the slipper pair performance test. Aiming at this problem, the electronic control system for the MCMS10 testing machine was studied, the control scheme of the electrical control system was analyzed, the hardware diagram of the electronic control system was designed, and the satisfactory PID algorithm was used to control the rotation speed and displacement of the testing machine’s main spindle. Finally, through the configuration software realtime monitoring and experiment, it was found that, when the satisfactory PID algorithm was applied to the MCMS10 test control system, not only the accuracy was very high, but 65 ℃ for the spindle speed around 3 200 r/min. This study could be a good reference the oil temperature was always kept at around for similar researches in the future.

TM 34

国家重点基础研究发展计划(973计划)(2014CB046404);贵州省高层次创新型人才培养计划项目(黔科合平台人才【2016】5659)