DEVICE FOR DETECTING FRACTURE OF SHEAR PIN

摘要

A device for detecting fracture of shear pins of a driving screen is provided to inform the fracture of the shear pins in a driving condition room or a spot control panel by sensing the fracture by overload of a motor. A device for detecting fracture of shear pins of a driving screen includes a motor-operated plate(4), a striker(5), and a limit switch(6). The driving screen includes a driving gear(1), a gearing(2), and the shear pin(3). A driving unit includes a motor(10) and a reducer(11) connected to the motor. The gearing comprises a sprocket(21) and a chain(20) mounted on an output axis of the reducer.