Crank block type pumping unit

A crank-slider, pumping unit technology, applied in mechanical equipment, production fluids, wellbore/well components, etc., to achieve the effect of simple calculation, easy implementation, and long life

Inactive Publication Date: 2013-07-03
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems existing in the existing beam pumping unit, and provide a new generation of pumping unit with simple structure, reliable use, convenient operation and maintenance, energy saving and high efficiency for oil production engineering

Method used

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  • Crank block type pumping unit

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Experimental program
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Embodiment Construction

[0020] (1) Structural Implementation Description ( figure 1 , figure 2 )

[0021] The crank slider oil pumping unit includes an electric motor (1), a reducer (2), an output shaft of the reducer (3), a double crank (4), a first fixed pulley (5-1), a second fixed pulley (5- 2), steel rope (6), double connecting rod (7), slider (8), guide rail (9), rope rod connector (10), oil well pump plunger rod (11), crank slider mechanism bracket ( 12), bolts (13), counterweight tray (14), counterweight (15), reducer and motor bracket (16).

[0022] A double crank (4) is installed on the output shaft (3) of the reducer, and the double crank (4) is connected with a double connecting rod (7) through a pin shaft; the double connecting rod (7) is connected with a sliding block (8) through a pin shaft, and the sliding The extension shaft at the left end of the block (8) is connected with the balance weight pallet (14) through the rope rod connector (10), the left end steel rope (6) and the f...

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Abstract

The invention relates to the field of oil production equipment, in particular to a new generation oil pumping unit with simple structure, safe use, high efficiency and energy conservation. The aim of the invention is to overcome the inherent defects that the prior walking beam oil pumping unit has larger torque factor, poor balance effect, high energy consumption and the like. The invention provides a crank block type oil pumping unit, which consists of double cranks, double connecting rods and slide blocks; with the linear reciprocating movement of the slide blocks, the upward and downward strokes of the oil pumping unit are realized; a balance weight and the load of the oil pumping unit are directly added to the slide blocks so that the movement law of the balancing load is completely in accordance with that of the load of the oil pumping unit so as to achieve a dynamic balance effect, eliminate the influences on a rod mechanism and a speed reducer gear of the oil pumping unit caused by a rotary inertial load, and improve the service lives of the oil pumping unit and the speed reducer; besides, the oil pumping unit has quite outstanding energy conservation effect and saves about50 percent of the energy compared with the prior walking beam oil pumping unit.

Description

1. Technical field [0001] The invention relates to the field of oil exploitation equipment, and is a beamless new-generation oil pumping equipment with safety, reliability, high efficiency and energy saving. 2. Background technology [0002] At present, in domestic and foreign oilfield oil production projects, the commonly used mechanical oil production equipment is beam pumping unit ( Figure 4 ). The beam pumping unit has been widely used in the oilfield mining process due to its simple structure, reliable use, convenient operation and maintenance, and long-term reliable and safe operation in harsh natural environments. At present, more than 90% of my country's oilfields The beam pumping unit is still used. However, due to its large torque factor, the net torque peak value on the crankshaft is too large, the fluctuation is too large, and the energy consumption is also increased. Therefore, in order to reduce the energy consumption of the beam pumping unit, many technical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00F16H37/12
Inventor 任涛任晓磊
Owner XI'AN PETROLEUM UNIVERSITY
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