矿用液压泵变频测试系统设计及应用

Design and application of frequency converter test system of mine-used hydraulic pump

为满足液压泵故障后对备件液压泵或者修复后的液压泵进行性能测试与调试的需求,解决通用的液压泵测试系统自动化水平低、数据记录处理工作量大等问题,提出了一种矿用液压泵变频测试系统,并详细介绍了其液压系统、变频电控系统、信息采集系统和软件系统的设计。该系统可高速采集液压泵压力、流量、转速、转矩信号,能够自动完成液压泵的效率试验、冲击试验、满载试验、超载试验、超速试验。该系统在满载和超载试验时功率回收率达到60%,节能效果明显。

An improved frequency converter test system of mine-used hydraulic pump was proposed in order to meet demands of performance testing and debugging of spare parts and repaired hydraulic pump after hydraulic pump was fault, and solve the problems that common hydraulic pump test system has low automation level, large workload on recorded data processing. Hydraulic system, frequency-conversion control system, information collection system and software system of the system were introduced in details. The system can quickly collect signals of hydraulic pump pressure, flow, rotational speed and torque, and can automatically complete efficiency test, impact test, load test, overload test and speed test of the hydraulic pump. The system has obvious saving effect with power recovery rate of 60% in full load and overload test.