WIRING DEVICE FOR AN EXCAVATOR EQUIPPED WITH AN AC MOTOR TO STABLY SUPPLY ELECTRICITY TO AN EXCAVATOR

摘要

PURPOSE: A wiring device for an excavator equipped with an AC motor is provided to prevent accidents due to cable interferences by maintaining the uniform tension of a cable.;CONSTITUTION: A wiring device for an excavator equipped with an AC motor comprises a wireless transmitter(11), a wireless receiving and functional component driving part(12), and a magnet clutch(13). The wireless transmitter is installed within the engineer's cabin of an excavator and senses that a lever of the excavator is converted into a driving mode and generates a driving signal to a drum drive motor(8) and a magnet clutch of a cable reel assembly(6). The wireless receiving and functional component driving part are installed in an electric power supply panel(10) or the cable reel assembly. If the tension of a cable(3) is greater than a frictional force, the magnet clutch blocks the driving force of the drum drive motor delivered to a drum(7) and operates the cable to be released from the drum. If the tension of the cable is smaller than a frictional force, the magnet clutch delivers the driving force of the drum drive motor to the drum and operates the cable to be wound in the drum.;COPYRIGHT KIPO 2012