FIELD: machine building.
SUBSTANCE: between the drive engine and pump jacks the central switching coupling, multi-stage central gearbox, angle reduction gearing unit, side switching couplings and cardan drives are installed. Three pairs of gear wheels, easy three-link planetary gear and six switching couplings ensure 18 gears in wide range of gear ratios. The multi-stage gearbox ensures reliable start-up of the pump-jacks due to high gear ratio of low gears and selection of the optimal oscillation frequency of bottom-hole pumps due to distribution of the gear ratios within wide range.
EFFECT: extended operation features of the pump-jacks due to improved balance of their operation.
3 dwg
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