Device for detecting the torque and the angle of rotation of a rotating shaft
First Claim
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).
2 Assignments
0 Petitions
Accused Products
Abstract
A device for detecting torque features of an electric screwer comprises a clutch for coupling with the electric screwer and a clutch for applying a resisting torque. The two clutches (11, 13) are connected to one another by a shaft (14) on which there are arranged extensometers (15) for measuring the torque transmitted by the shaft. On the shaft there is splined a disc (18) that bears on at least one face circular tracks (19, 20, 21, 22) that are coaxial to the shaft and to which the extensometers are electrically connected. Sliding contacts (23, 24, 25, 26) rest elastically on said circular tracks in a direction that is substantially parallel to the axis of the shaft to pick up the electric signals from the extensometers. An encoder (17) is provided to detect shaft rotation.
-
Citations
9 Claims
- 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).
Specification