DEVICE FOR MOVEMENT PREVENT OF CRANE WITH TROLLEY

摘要

An apparatus for preventing a movement of a trolley crane is provided to restrain vibration generated due to the movement of a trolley by adding a mass damper section to the rear side of a crane boom. An apparatus for preventing a movement of a trolley crane includes a mass body(210), a plurality of hydraulic cylinders(220), a rubber ring(230), a lower cover(250), and an upper cover(240). The mass body controls vibration of the crane generated when a trolley is moved. The hydraulic cylinders are connected to the mass body to reduce the vibration of the crane. The rubber ring reduces the vibration due to a collision of the hydraulic cylinders and the lower cover. The lower cover protects the mass body, the hydraulic cylinder, and a rubber ring. The upper cover is located at an upper portion of the lower cover and is connected to a crane boom.