TORQUE CONTROLLING DEVICE OF HOISTING MACHINE MAIN SHAFT BASED ON TORSION ANGLE MEASURING

摘要

FIELD: machine engineering.;SUBSTANCE: claimed invention relates to the torque controlling device of the hoisting machine main shaft based on the torsion angle measuring. The claimed torque controlling device of the hoisting machine main shaft includes the first base, the second base, a light source generating unit, a baffle and a photosensitive element, wherein the light source, the first lens and the first diaphragm are located in the light source generating unit, the second diaphragm and the second lens are on the baffle, and the photosensitive element forms a path for generating, transmitting and receiving of the light. At the same time, when the main shaft of the hoisting machine is subjected to the certain torque, a corresponding offset occurs between the first and the second diaphragm, and thus, the shaft torsion angle can be determined by measuring the change in the light amount that reaches the second optical diaphragm, and, finally, the torque on the shaft can be calculated.;EFFECT: measurement of the shaft torque using the light detection principle.;3 cl, 3 dwg