Torque measuring device

Details Torque measuring device Torque measuring device

G - Physics

01

L

73/88

G01L 3/00 (2006.01) E21B 43/12 (2006.01) E21B 44/00 (2006.01) G01L 3/14 (2006.01)

Patent

CA 1233668

ABSTRACT OF THE DISCLOSURE A device for measuring the torque of a rotating shaft when the torque exceeds a predetermined level includes adjacent drive and follower hubs on the shaft, the drive hub being connected to the shaft and the follower hub being rotatable on the shaft; a plurality of helical springs extending perpendicular to the longitudinal axis of the hubs interconnecting the hubs; an indicator ring on the side of the drive hub opposite to the follower hub; and a plurality of pins connected at one end to the indicator ring and extending through bushings in the drive hub into engagement with inclined cams in the follower hub. When the torque on the shaft exceeds the predetermined level, the force of the springs is overcome, and the pins ride up the cams to move the indicator ring away from the drive hub a distance directly proportional to the amount by which the torque exceeds such predetermined level.

483518

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