The hydraulic braking system of the mining dump truck comprises an electric control pump, an outlet of the electric control pump is connected with a braking oil way and a cooling oil way, the braking oil way is sequentially connected with a one-way valve, a braking energy accumulator and a braking control assembly, and the cooling oil way is sequentially connected with an electromagnetic proportional valve, a motor pump, a radiator and a cooling cavity of a wet brake. The fan motor and the fan are used for cooling the radiator; the input end of the controller is connected with a pressure sensor and a temperature sensor, and the output end is connected with the electric control pump, the electromagnetic switch valve and the electromagnetic proportional valve. According to the hydraulic braking system of the mining dump truck and the control method, the controller is switched among different working modes according to the pressure of the energy accumulator and the temperature of oil liquid, so that the system consumes least energy to meet the requirements of working conditions, and the energy-saving effect is achieved; the controller enables the output pressure of the electric control pump to fluctuate stably by limiting the variation amplitude of the control signal, so that pressure impact on the system is avoided, the fault risk is reduced, and the service life of the system is prolonged.
一种矿用自卸车液压制动系统及控制方法,包括电控泵,电控泵的出口连接制动油路和冷却油路,制动油路依次连接有单向阀、制动蓄能器和制动控制组件,冷却油路依次连接有电磁比例阀、马达泵、散热器和湿式制动器的冷却腔,还包括为散热器散热的风扇马达和风扇;控制器的输入端连接有压力传感器和温度传感器,输出端与电控泵、电磁开关阀和电磁比例阀。本发明的矿用自卸车液压制动系统及控制方法,控制器根据蓄能器压力和油液温度,在不同的工作模式之间切换,使系统消耗最少的能源来满足工况的需要,达到节能的效果;控制器通过限制控制信号的变化幅度使电控泵的输出压力平稳波动,以避免对系统产生压力冲击,降低了故障风险,增加系统的使用寿命。
Hydraulic braking system of mining dump truck and control method
一种矿用自卸车液压制动系统及控制方法
2024-06-18
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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