由于液压机械采用了大功率的液压系统,液压系统的流量与工作压力都随之提高,这就要求该液压系统的控制功率也增大。作为对整个液压系统进行液流分配的多路换向阀,在其系统的流量与工作压力提高后,就使在换向过程中阀杆位移所需克服的轴向液动力、机械阻力及保证滑阀可靠地回到中立位置的复位弹簧力也都随 Because the hydraulic machinery adopts the high-powered hydraulic system, the hydraulic system’s flow and the working pressure all raise along with it, therefore it requires the control power of this hydraulic system to increase too. As a multi-way directional control valve for distributing the flow of the entire hydraulic system, axial flow dynamics, mechanical resistance and warpages to be overcome to displace the valve stem during commutation are obtained after the flow rate and working pressure of the system are increased The return spring, which returns the spool valve reliably to the neutral position, also follows