Torque measuring apparatus for rotating body
View Patent ↗A torque measuring apparatus includes a rotor having a hollow body portion formed between a drive-side flange portion and a load-side flange portion. Light emitting elements are disposed on a periphery of the rotor, for emitting optical signals based on an output from a torque detection unit attached to a hollow portion of the hollow body portion. A transparent plate attached to a chassis is disposed outside the rotor, for allowing the optical signals to pass therethrough, and a signal receiving unit is arranged on the chassis, for receiving the optical signals via the transparent plate, wherein the transparent plate is detachable from the chassis.
1. A torque measuring apparatus comprising:
a rotor having a hollow body portion formed between a drive-side flange portion and a load-side flange portion;
light emitting elements disposed on a periphery of the rotor, for emitting optical signals based on an output from a torque detection unit arranged on a hollow portion of the hollow body portion;
a transparent plate attached to a chassis disposed outside the rotor, for allowing the optical signals to pass therethrough;
a signal receiving unit attached to the chassis, for receiving the optical signals via the transparent plate, wherein the transparent plate is detachable from the chassis; and
a slide mechanism for sliding the transparent plate.
2. The torque measuring apparatus according to claim 1 , wherein the slide mechanism comprises a manually operated element.
3. The torque measuring apparatus according to claim 1 , wherein the slide mechanism comprises a motor for sliding the transparent plate by operation of an operating switch.
4. The torque measuring apparatus according to claim 3 , wherein the transparent plate is caused to slide by means of the motor driven slide mechanism when contamination is detected on the transparent plate.