Electric control reversing speed reducer-free pumping unit

Abstract

The invention relates to the technical field of oil field oil extraction, in particular to an electric control reversing speed reducer-free pumping unit. The electric control reversing speed reducer-free pumping unit comprises a foundation, a support, a driving assembly and a driving belt; the lower end of the support is fixedly connected with the foundation, and the upper end of the support is rotationally connected with a travelling beam through a travelling beam support; a horsehead is arranged at the near end of a wellhead of the travelling beam, a pulley is arranged at the far end of thewellhead, and a lifting rope is arranged on an outer arc section of the horsehead; the driving assembly comprises a motor and a roller, and the motor is detachably connected with a motor base, a connecting base and the foundation in sequence; a small belt wheel is arranged at the shaft end of the motor, a large belt wheel is arranged at the shaft end of the roller and connected with the small beltwheel through a transmission belt; the driving belt winds around the pulley, one end is connected with an adjuster assembly, and the other end is connected with the roller; and the motor is connectedwith a control cabinet through a signal line and a power line. The transmission belt is dragged forwards and reversely through the driving assembly arranged on the foundation, then the pulley, the travelling beam and the horsehead are driven to swing up and down with the travelling beam support as a fulcrum, and safe and environment-friendly oil extraction is achieved.

Description

technical field [0001] The invention relates to the technical field of oil recovery in oil fields, in particular to an electronically controlled reversing pumping unit without a reducer. Background technique [0002] Oilfield oil production mainly adopts mechanical oil production equipment, among which the pumping units are mainly beam pumping units and beamless pumping units. Small size can be widely used, but in the process of using the existing electronically controlled reversing beamless pumping unit, it is necessary to climb up to the upper platform for motor and drum maintenance, load belt replacement, pumping unit loading operation and pumping unit unloading operation. There are potential safety hazards in this climbing process, and the reducer matched with the beam pumping unit is prone to oil leakage or splashing during use, which will cause environmental pollution on the oil production site and increase the cost of oil production in the oil field. Contents of the...

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Problems solved by technology

[0002] Oilfield oil production mainly adopts mechanical oil production equipment, among which the pumping units are mainly beam pumping units and beamless pumping units. Small size can be widely used, but in the process of using the existing electronically controlled reversing beamless pumping unit, it is necessary to climb up to the upper platform for motor and drum maintenance, load belt replacement, pumping unit loading operation and pumping unit unloading operation. There are potential safety hazards in this climbing process, and the reducer matched with the beam pumping unit is prone to oil leakage or splashing during use, which will cause environmental pollution on the oil production site and increase the cost of oil production in the oil field

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