Oil sucking machine with small torque and low energy consumption

A low energy consumption, pumping unit technology, applied in the direction of mining fluid, wellbore/well components, earthwork drilling and production, etc., to achieve good stability, reduce driving power, and facilitate popularization and application

Inactive Publication Date: 2011-07-13
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In order to overcome the problems of increased energy consumption and poor stability caused by the large torque of the existing pumping unit

Method used

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  • Oil sucking machine with small torque and low energy consumption
  • Oil sucking machine with small torque and low energy consumption

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing:

[0014] As shown in the accompanying drawings, the low-torque and low-energy pumping unit includes a motor 1, a reducer 2, a crank 3, a connecting rod 4, a counterweight 5, a pulley 6, a movable pulley 7, a base 8, a bracket 9, a fixed pulley 10 and Buffer 11. The support 9 is fixed on the base 8, and there are slideways in the four corners of the support 9, and the fixed pulley 10 is connected to the top side of the support 9 through a bearing seat. There are multiple grooves on the fixed pulley 10, and the fixed pulley 10 grooves are respectively wound Lifting chain 12 and lifting chain 13 are arranged, or steel wire rope is used to replace lifting chain 12 and lifting chain 13, one end of lifting chain 13 is fixed on the fixed pulley 10, and the other end of lifting chain 13 is connected with the polished rod through a rope hanger. One end of the bit chain 12 is fixed on...

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PUM

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Abstract

The invention discloses an oil sucking machine with small torque and low energy consumption, which mainly solves the problems of increase in energy consumption and poor stability caused by large torque of the conventional oil sucking machine. The oil sucking machine is characterized in that a bracket (9) is fixed on a base (8); a fixed pulley (10) on which a lifting chain (12) and an elevating chain (13) are wound respectively is connected to one side of the top end of the bracket (9); the other end of the elevating chain (13) is connected with a feed rod through a beam hanger; the other end of the lifting chain (12) is connected with a buffer (11) across a movable pulley (7); the movable pulley (7) and a balancing weight (5) are connected above and below a travelling trolley (6) in the bracket (9) respectively; two ends of a connecting rod (4) are connected with a crank (3) and the travelling trolley (6) through hinges respectively; the other end of the crank (3) is connected with an output shaft of a speed reducer (2); and the speed reducer (2) fixed on a base (8) in the bracket (9) is connected with a motor (1). The oil sucking machine with small torque and low energy consumption has the characteristics of low energy consumption and high stability.

Description

Technical field: [0001] The invention relates to a lifting device used in an oil well in the field of oil production in an oil field, in particular to a low-torque and low-energy-consumption pumping unit. Background technique: [0002] In the field of oil production, due to the drop in formation pressure, the crude oil in the oil layer cannot flow to the ground, so it is necessary to use a mechanical lifting device to lift the crude oil to the ground. The mechanical lifting device that lifts crude oil to the ground is called a pumping unit. With the development of oil fields and the continuous development of technology, there are various types of pumping units to meet the needs of different production periods. And there is a common problem in existing pumping unit, and that is exactly the problem of big torque. The torque is the product of the moment arm and the force acting on the moment arm. A large moment means that either the moment arm is large or the force acting o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00
Inventor 梁宏宝陈颖赵玲李冰孟庆伟孙旭东夏山狄向东
Owner NORTHEAST GASOLINEEUM UNIV
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