Power allocation analysis of hydraulic system with single pump and multiple motors of multifunctional snow-plough

In order to investigate the power allocation characteristics of the multifunctional snow-plough’s hydraulic system that with the single hydraulic pump and the multiple hydraulic motors, it was simulated with AMESIM that is the professional numerical analysis software for the hydraulic system. And the numerical analysis is based on the theoretical analysis and the established shunt displacement equations of the gear flow divider and the established pressure control equations of the hydraulic transformer. The flow characteristics and the pressure characteristics and the rotating speed characteristics and the rotating torque characteristics of all hydraulic motors are directly showed by the numerical analysis curves. Comparing the numerical analysis curves with the experiment data, the absolute value of the maximum relative error is less than 15.5%, and the power allocation eigenvalue of the multifunctional snow-plough’s hydraulic system that with the single hydraulic pump and the multiple hydraulic motors. The power allocation can be realized and the power interference can be effectively avoided by using the low divider and the hydraulic transformer in the hydraulic system that with the single hydraulic pump and the multiple hydraulic motors. The distributive power has the migration character to the negative direction, the maximum negative error is -12.5%. The problems of the power allocation and the load power interference are effectively solved by using the low divider and the hydraulic transformer in the hydraulic system.