Scissors fork type extended-range pumping unit

Abstract

A scissors fork type extended-range pumping unit comprises a motor, a motor supporting base, a speed reducer, a crank, a rocker, an installing support, a scissors fork supporting arm hinged shoe, an upper supporting platform, a horsehead hinged shoe, a horsehead, a scissors fork type lifting mechanism, a hydraulic device, a polished rod lifting rope, a lower supporting platform and a supporting base. Structures of a double-action wheel type pumping unit and a pedal single-arm walking beam extended-range pumping unit are used for reference, a range extending device is improved by adopting the scissors fork type lifting mechanism, and the stroke of the pumping unit is effectively lengthened by using the characteristics of providing enough lifting height and saving space of the scissors fork type lifting mechanism. The characteristics that the scissors fork type mechanism bears heavy loads and moves stably are used, and the mechanism moves more smoothly, and the oil pumping efficiency is improved. Different performance requirements of pumping units in large, medium and small sizes can be met by changing the structure of the scissors fork type lifting mechanism.

Description

technical field [0001] The invention belongs to the technical field of oil exploitation equipment, in particular to a scissor type extended-range oil pumping unit. Background technique [0002] Pumping unit is a kind of machinery and equipment for oil extraction, commonly known as "kowtow machine", which makes oil out of the well by pressurizing. By investigating the market shares and application prospects of various types of pumping units, it is found that long-stroke pumping units have developed rapidly. Although long-stroke pumping units are suitable for my country’s future oil production needs, after the stroke increases, the The overall structure will become larger, and the weight will also increase in a certain proportion, thus affecting the stability of equipment operation. At the same time, the load of the motor driving the pumping unit is increased, and a motor with higher power needs to be configured, resulting in increased energy consumption. Contents of the inv...

AI Technical Summary

Problems solved by technology

By investigating the market shares and application prospects of various types of pumping units, it is found that long-stroke pumping units have developed rapidly. Although long-stroke pumping units are suitable for my country’s future oil production needs, after the stroke increases, the The overall structure will become larger, and the weight will also increase in a certain proportion, which will affect the stability of equipment operation

At the same time, the load of the motor driving the pumping unit is increased, and a motor with higher power needs to be configured, resulting in increased energy consumption

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