Output torque sensor and control apparatus

Details Output torque sensor and control apparatus Output torque sensor and control apparatus

1992-03-23

1993-09-21

Herrmann, Allan D.

192 clutches and power-stop control

Stop mechanism

Overload release

74412TA, 192142R, 200 47, 318475, H01H 1918

Patent

active

052460959

ABSTRACT:
An output torque sensing and limiting mechanism, for preventing the continued application of torque to a load when the torque exceeds a selected value. The mechanism is positioned at the end of a gear train, meshed with the final gear and adapted to transmit the output torque to the load, through an output adapter. An input gear assembly includes a sector gear, meshed with the gear train, for receiving the input torque. A housing assembly is rotationally carried on the input gear assembly, with wing members extending to define a wing angle. The sector gear lies in the wing angle, with vertical gear ends adjacent each wing member. A torque sensor subassembly is carried in each wing member, consisting of a bearing button positioned in registration with the sector gear end, biased into position by a wave spring and adjustable by means of a retainer button. Microswitches are carried on the sector gear, located with the switch elements extending into the gap between the sector gear and each wing member. If the torque applied to the sector gear exceeds the resistance of the wave spring, the bearing button deflects and the wing member makes contact with the switch element, which in turn removes power from the gear train.

REFERENCES:
patent: 2222716 (1940-11-01), Mageoch
patent: 2232545 (1941-02-01), Lum
patent: 2403094 (1946-07-01), Lear
patent: 4320317 (1982-03-01), Bowey

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