SYSTEM FOR DETECTING AND INDICATING PULLING LOAD OF CRANE AND CRANE HOOK

摘要

PURPOSE: A system is provided to indicate the present pulling load in a digital type by installing a detecting unit in a hook unit and by transmitting a signal from the detecting unit. CONSTITUTION: A system is composed of a load detecting sensor(16), a conversion control unit(2) converting the detected signal from the load detecting sensor to a proper signal for transmitting, and transmitter transmitting the converted signal with returning wave. When pulling a load, a hook receives load so that the load detecting sensor in the hook and an operator checks the present load displayed on an indicating unit. The operator decides if the present pulling load is over a maximum allowable load by the length of a boom.