The invention relates to the technical field of engineering machinery, and provides a loader brake hydraulic system and a control method.The loader brake hydraulic system comprises an oil pump, the oil outlet end of the oil pump is connected with the P end of a prefill valve, and the A end of the prefill valve is connected with an energy accumulator through a first branch; the end A of the prefill valve is connected with a foot brake valve through a second branch, the end A of the foot brake valve is connected with a service brake end, and the end SW of the prefill valve is connected with a service brake pressure sensor; the A end of the prefill valve is connected with a parking braking electromagnetic valve and a differential lock electromagnetic valve through a third branch, the SW end of the parking braking electromagnetic valve is connected with a parking braking end, the SW end of the differential lock electromagnetic valve is connected with a front axle and a rear axle of a vehicle body, the B end of the parking braking electromagnetic valve is connected with a parking braking pressure sensor, and the B end of the differential lock electromagnetic valve is connected with a differential lock pressure sensor. Hydraulic control and mechanical release are independently controlled and do not interfere with each other, and when a muddy or slippery road surface is met, the wheels are prevented from slipping.
本发明涉及工程机械技术领域,提供一种装载机制动液压系统及控制方法,包括油泵,所述油泵出油端连接充液阀P端,充液阀A端通过第一支路连接蓄能器;充液阀A端通过第二支路连接脚制动阀,脚制动阀A端连接行车制动端,充液阀SW端连接行车制动压力传感器;充液阀A端通过第三支路分别连接驻车制动电磁阀和差速锁电磁阀,驻车制动电磁阀SW端连接驻车制动端,差速锁电磁阀SW端连接车体前后桥,驻车制动电磁阀B端连接驻车制动压力传感器,差速锁电磁阀B端连接差速锁压力传感,液压控制和机械解除两者相互独立控制,相互之间不干扰当遇到泥泞或湿滑路面时为防止车轮打滑。
Loader brake hydraulic system and control method
一种装载机制动液压系统及控制方法
2025-03-14
Patent
Electronic Resource
Chinese
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