Concrete transfer system for use in concrete pump car, has rod sensing sensor to sense movement of rods of drive cylinders, and control unit to perform preset control operation by receiving sensed signal

摘要

The system has two drive cylinders mounted on concrete input tubes to suck and transfer concrete by forward and backward movements of pressure pistons. An oil pressure pump supplies fluid to the cylinders, and a rod sensing sensor senses movement of rods of the cylinders. A control unit (180) performs a preset control operation by receiving sensed signal. An oil path change drive unit supplies the fluid based on the signal.