The invention belongs to the technical field of hydraulic control, and particularly relates to a loader steering hydraulic system, a control method and a loader. Comprising a steering gear, a steering cylinder, a steering pump connected with an oil tank, a flow amplifying valve, a pilot oil source valve, a stop valve and a proportional electromagnetic valve, an oil outlet of the steering pump is connected with a port P of the flow amplifying valve and a port P of the pilot oil source valve; a port L and a port R of the steering gear are respectively connected with a port a and a port b of the flow amplification valve, and a port L and a port R of the proportional electromagnetic valve are respectively connected with a port a and a port b of the flow amplification valve. According to the invention, the steering cylinder can still be controlled when the steering gear is blocked, so that the purpose of ensuring the steering reliability and safety of the loader is achieved.
本发明属于液压控制技术领域,具体涉及一种装载机转向液压系统、控制方法及装载机。包括转向器、转向缸、以及连接油箱的转向泵,还包括流量放大阀、先导油源阀、切断阀、比例电磁阀;所述转向泵的出油口与所述流量放大阀的P口和先导油源阀的P口均相连;所述转向器的L口和R口分别与所述流量放大阀的a口和b口相连,所述比例电磁阀的L口和R口分别与所述流量放大阀的a口和b口相连。本发明通过能够在转向器出现卡滞时仍然能够对转向缸进行控制,以达到确保装载机转向可靠性及安全性的目的。
Steering hydraulic system of loading machine, control method and loading machine
一种装载机转向液压系统、控制方法及装载机
2025-02-18
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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