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Wheel type oil pumping unit

A pumping unit and wheeled technology, applied in the direction of wellbore/well components, construction, production fluid, etc., can solve the problems of low reversing efficiency, large reversing impact, difficult balance adjustment, etc., and achieve high reversing efficiency, The impact of reversing is small and the strokes are easy

Inactive Publication Date: 2012-08-15
金成群
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the beam pumping unit commonly used in oilfields, such as the CYJ type pumping unit, relies entirely on the mechanical reversing mechanism of the four-bar linkage. The reversing efficiency is low, the reversing impact is large, the stroke is difficult to adjust, and the balance also difficult

Method used

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  • Wheel type oil pumping unit
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  • Wheel type oil pumping unit

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Experimental program
Comparison scheme
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Embodiment 1

[0011] refer to figure 1 , figure 2 , the present invention comprises a base 1, a hinge shaft 2, a drive wheel frame 3, a brake 4, a small pulley 5, a motor 6, a sucker rod 7, a rope hanger 8, a belt 9, a pull rope 10 for the sucker rod, a drive rope 11, a support Frame 12, sky wheel shaft 13, small counterweight 14, sky wheel 15, position detector 16, counterweight traction rope 17, counterweight 18, driving wheel 19, large pulley 20, driving wheel shaft 21, electric control cabinet 22, encoder 23. The sky wheel 15 is installed on the supporting frame 12 through the sky wheel shaft 13, and the supporting frame 12 is installed on the base 1. The driving wheel 19 is installed on the driving wheel frame 3 through the driving wheel shaft 21, and the driving wheel frame 3 is installed through the hinge shaft 2. On the base 1, the sucker rod 7 is connected to one side of the wheel circumference of the sky wheel 15 through the rope hanger 8 and the oil rod traction rope 10, and th...

Embodiment 2

[0018] refer to image 3 , Figure 4 The difference between embodiment 2 and embodiment 1 is: in embodiment 2, counterweight 18 is fixed on the sky wheel 15 by rocking arm, so there is no counterweight traction rope 17 and small counterweight 14, and others are identical to embodiment 1.

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Abstract

A wheel type oil pumping unit comprises a supporting frame, a base, an oil pumping rod, a rod pulling rope, a counterweight, a counterweight pulling rope, a drive wheel, a drive wheel frame, a power device and an electric control device. The wheel type oil pumping unit is characterized in that: the top of the supporting frame is provided with a head sheave, the bottom of the supporting frame is arranged at the base which is connected with the drive wheel frame by a hinge axis, the drive wheel is arranged at the drive wheel frame, the oil pumping rod is connected with one side of the head sheave circumference, the counterweight is connected with the other side of the head sheave circumference, the middle part of the drive rope is fixed at the drive wheel, and the two ends of the drive ropewind around the drive wheel in opposite direction and are respectively connected with the two sides of the head sheave circumference. The electric motor of the invention replaces the four-linkage direction changing mechanism of a beam type oil pumping unit in a way of forward-backward direction changing according to the procedure under the control of the electric control device, and the oil pumping rod and the counterweight are respectively hung at the two sides of the head sheave to realize static balance, therefore, the balance quality of the unit is high, the direction changing efficiencyis high, the impact of direction changing is small, and stroke length and frequency are easy to be regulated.

Description

technical field [0001] The invention relates to an oil production device, in particular to a wheeled oil pumping unit. Background technique [0002] At present, the beam pumping unit commonly used in oilfields, such as the CYJ type pumping unit, relies entirely on the mechanical reversing mechanism of the four-bar linkage. The reversing efficiency is low, the reversing impact is large, the stroke is difficult to adjust, and the balance It is also difficult. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a motor under the control of the electric control device, which replaces the four-link reversing mechanism of the beam pumping unit in the way of forward and reverse reversing according to the program, and the sucker rod and The counterweight is hung on both sides of the sky wheel to achieve static balance, so the machine has high balance precision, high reversing efficiency, small reversing impact, and easy str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00
CPCE21B43/127E21B43/126
Inventor 金成群洪正录
Owner 金成群