The invention provides a steering hydraulic system and a crane. The steering hydraulic system comprises a steering gear which is connected with a steering axle and is configured to open or close a channel according to a steering signal, a control valve body which is connected with the steering gear and is constructed to open or close a valve according to pilot oil so as to open or close a corresponding oil way, a steering oil cylinder which is connected with the steering gear and the control valve body, and a power mechanism which is connected with the steering gear and the control valve body, and the power mechanism is configured to provide power for the steering oil cylinder through the channel and the oil way; the control valve body and the steering gear are arranged in parallel, and the steering gear sends the pilot oil to the control valve body. The problem that the sensitivity cannot be considered when large flow is allowed to pass through can be solved.
本发明提供了一种转向液压系统及起重机,包括:转向器,所述转向器与所述转向桥连接,所述转向器构造为根据转向信号开启或关闭通道;控制阀体,所述控制阀体与所述转向器连接,所述控制阀体构造为根据先导油开启或关闭阀门,以开启或关闭对应的油路;转向油缸,所述转向油缸与所述转向器和所述控制阀体连接;以及动力机构,所述动力机构与所述转向器和所述控制阀体连接,所述动力机构构造为通过所述通道和所述油路为所述转向油缸提供动力;其中,所述控制阀体与所述转向器并联设置,且所述转向器向所述控制阀体发送所述先导油。本发明可以解决无法在允许较大流量通过时兼顾灵敏度的问题。
Steering hydraulic system and crane
一种转向液压系统及起重机
2022-01-04
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |