Design on Speed Control System for Reeling Irrigation Machine Based on Hydraulic Driving and Electrical Control

Aiming at shortcomings of reeling irrigating machine based on water driving and common mechanism, Hebei Nonhaha Company designed an electrical automatic control solution different from that based on water driving．Principle of recovery speed regulation of reeling irrigation machine under this method and mechanical and electrical control scheme involved in speed regulation, was described, and its control circuit, controller function and internal operation program flow was introduced．Deviation ratio mean and coefficient of variation of field test samples were all less than 6%, which were all less than relevant values of test samples of general speed regulation scheme before improvement, which reflected its superiority．