FLUID STATIC DYNAMICAL SPEED REDUCING DEVICE FOR DRIVING MIXING DRUM

摘要

PURPOSE: A fluid static dynamical-mechanical speed reducing device is provided to suppress the vibration of a concrete carrying-mixing drum. CONSTITUTION: The fluid static dynamical-mechanical speed reducing device has a piston(24) of an oil pressure motor(6) which is contacted with a cam(26) by its roller(25) since the piston receiving a spring load. If an oil pressure pump(2) stops, the working principle of the oil pressure motor can react. Herein, the oil is additionally absorbed into an oil tank by the reaction against the working principle of the oil pressure motor since absorbing valves are connected to a pipe(4, 5) which reaches the oil pressure motor for suppressing the vibration of the mixing drum.