矿车液压悬挂系统研究

Study on hydraulic suspension system in mine trucks

为了探求具有较高动态响应和低能耗的矿车悬挂系统,利用负载传感液压系统和蓄能器相结合的技术,构建了一种新型矿车液压悬挂系统。该悬挂系统的负载传感液压系统能使输出压力与流量自动适应负载需求,提高系统工作效率;而蓄能器能大大提高系统的动态响应。根据系统组成,建立矿车液压悬挂系统数学模型,利用MATLAB软件进行仿真分析。仿真结果表明:与传统方式的悬挂系统相比,该液压悬挂系统具有较好的动态性能和节能效果,有利于矿车液压悬挂系统的进一步研究。

In order to obtain the hydraulic suspension system in mine trucks with fast dynamic response and low energy consumption, a new-type hydraulic suspension system was constructed by combining load-sensing hydraulic system with accumulator. The load-sensing hydraulic system enabled output pressure and flow to automatically adapt to the load requirements so as to enhance the system efficiency, while the accumulator was contributive to great improvement of system dynamic response. Moreover, the mathematical model of the hydraulic suspension system was built according to the system constitution, and MATLAB was applied to conduct simulation and analysis. The simulation results showed the hydraulic suspension system was superior to the traditional suspension system in dynamic performance and energy-saving effects, which benefited further study on the hydraulic suspension system in mine trucks.