The invention discloses an unmanned mining dump truck hydraulic braking system and a control method. The unmanned mining dump truck hydraulic braking system comprises a service brake valve set and a parking brake valve set. The service brake valve group comprises a first hydraulic proportional pressure reducing valve, a second hydraulic proportional pressure reducing valve, a first shuttle valve and a first pressure sensor; the first hydraulic proportional pressure reducing valve and the second hydraulic proportional pressure reducing valve are connected in parallel; oil outlets of the first hydraulic proportional pressure reducing valve and the second hydraulic proportional pressure reducing valve are communicated with an oil inlet of a first shuttle valve; an oil outlet of the first shuttle valve is connected with a first pressure sensor; the parking brake valve group comprises an electromagnetic directional valve, a redundant electromagnetic directional valve and a pressure switch; the electromagnetic directional valve is a normally closed valve, and the redundant electromagnetic directional valve is a normally open valve; the electromagnetic directional valve and the redundant electromagnetic directional valve are connected in series, the electromagnetic directional valve is connected with an oil inlet pipeline, the redundant electromagnetic directional valve is connected with an oil outlet pipeline and a parking brake caliper, and a pressure switch is arranged on the oil outlet pipeline.
本发明公开了一种无人驾驶矿用自卸车液压制动系统及控制方法,包括行车制动阀组和驻车制动阀组;所述的行车制动阀组包括第一液压比例减压阀、第二液压比例减压阀、第一梭阀和第一压力传感器;所述的第一液压比例减压阀、第二液压比例减压阀并联;所述的第一液压比例减压阀、第二液压比例减压阀的出油口与第一梭阀的进油口连通,第一梭阀的出油口连接第一压力传感器;所述的驻车制动阀组,包括电磁换向阀、冗余电磁换向阀、压力开关;所述的电磁换向阀为常闭阀,冗余电磁换向阀为常开阀;所述的电磁换向阀、冗余电磁换向阀串联,电磁换向阀连接进油管道,所述的冗余电磁换向阀连接出油管路连接驻车制动钳,且在出油管路上设施压力开关。
Hydraulic braking system of unmanned mining dump truck and control method
一种无人驾驶矿用自卸车液压制动系统及控制方法
09.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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