FIELD: oil industry.
SUBSTANCE: air-operated drive comprises electropneumatic control device, fluidic motor, mechanical reduction gear with stroke nut, device of end switches, and stroke screw that is connected with the output spindle. The drive is additionally provided with the device for informing about the current position of the output spindle which has the disk with staggered grooves and teeth over periphery. The disk is mounted in the housing of the device on the roller with gearing wheel and rotates the stroke nut by means of the gearing transmission. The periphery of the disk with grooves and teeth is mounted for permitting cooperation with the pickup members. The outputs of the pickups are connected with the inputs of the local personal computer for permitting automatic control of the drive.
EFFECT: enhanced reliability.
4 dwg
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