Patent ID: 8040130
Filing Date: 2011-10-18
Classification: B25B,G01L

Abstract:
1. Device for detecting torque features of an electric screwer comprising a clutch for coupling with the electric screwer and a clutch for applying a resisting torque, the two clutches ( 11 , 13 ) being mutually connected by a shaft ( 14 ) on which there are arranged extensometers ( 15 ) for measuring the torque transmitted by the shaft, a rotating contact assembly ( 16 ) providing an electrical connection to the extensometers that rotate with the shaft and an encoder being connected to the shaft to detect the angular rotation thereof, characterized in that the encoder comprises an electronic sensor ( 33 ) with a Hall effect that detects the angular position of a facing magnet ( 34 ) rotated by the shaft wherein the magnet ( 34 ) is fixed axially on a pulley ( 35 ) connected by a belt ( 36 ) to a pulley ( 37 ) splined on the shaft ( 14 ).