以K3V63DT-1QOR-HNOV液压泵为例介绍K3V系列液压泵的结构及控制变量原理,该液压泵由主泵、先导泵、泵调节器和转矩控制电磁阀组成,可实现总功率控制、负流量控制和功率转换控制的功能。总功率控制可实现执行机构的轻载高速、重载低速动作,既能保证液压泵充分利用发动机功率又能防止发动机过载;负流量控制可最大限度地减小溢流功率损失和系统发热;利用功率转换控制功能,在实际工作中可根据负载情况改变输入电流大小,调整液压泵的输出功率,提高工作效率,节省发动机功率。 Take K3V63DT-1QOR-HNOV hydraulic pump as an example to introduce the structure and control variable principle of K3V series hydraulic pump, which consists of main pump, pilot pump, pump regulator and torque control solenoid valve, which can achieve total power control, negative Flow control and power conversion control functions. The total power control can realize the light-load high-speed implementing agencies, low-speed heavy-duty action, both to ensure that the hydraulic pump to make full use of engine power and prevent engine overload; negative flow control can minimize the overflow power loss and system heating; Power conversion control function, in the actual work can change the size of the input current according to the load, adjust the output power of the hydraulic pump to improve work efficiency and save engine power.