FIELD: oil producing industry.
SUBSTANCE: invention is designed to control reciprocation of sucker-rod pump. Inlet and outlet mechanisms are made in form of coaxial shafts on ends of which friction wheels are secured. Transmission is made in form of two-disk friction variable-speed drive whose disks are coaxial relative to each other and are secured on movable holder installed for displacement along axis of inlet and outlet mechanisms. Gear ratio changer is made in form of lever shifting rectilinearly movable holder of friction variable-speed drive.
EFFECT: possibility of control of movable speed of oil-well sucker-rod pump within wide range at manual and automatic mode of operation.
1 dwg
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