在分析连续混配撬液添泵系统工作特点的基础上，选择负载敏感液压系统作为其液压动力系统。为验证连续混配撬负载敏感液压系统性能，利用AMESim仿真软件搭建连续混配撬液添泵液压系统仿真模型，得到泵出口压力、泵输出流量及功率变化曲线。结果表明：泵输出流量稳定时，泵出口压力与各负载中最大压力的差值为负载敏感阀的设定压力；流量按需分配，在泵最大流量允许范围内，泵输出流量始终随着系统所需流量的变化而变化；负载敏感泵输出功率始终与负载所需功率相匹配，系统具有无溢流损失、节能等优点。
Abstract
After analyzing the working characteristics of adding pump system in continuous mixing pry device, load sensing hydraulic system is selected as its hydraulic power system. Establish the simulation model of liquid pump hydraulic system by using AMESim software, in order to verify the performance of load sensitive hydraulic system in continuous mixing pry device. Obtain the curve of load sensitive pump outlet pressure and pump output flow and power. The Result shows that when the pump output flow is stable, the difference between the pump outlet pressure and the maximum pressure in each load is the set pressure of the load sensing valve. The flow is distributed on demand. Within the maximum flow of the pump, pump output flow varies with the flow required. The load-sensing pump output power is always matched to the power required. The system has advantages of no overflow loss and energy saving.
关键词
负载敏感；AMESim；压力；流量
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Key words
load sensing, AMESim, pressure, flow
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