CN112814627A

CN112814627A - Electrically controlled reversing direct-drive beam pumping unit

Info

Publication number: CN112814627A
Application number: CN202110301994.0A
Authority: CN
Inventors: 刘超; 王胜辉; 周治江; 侯有超; 滕枝娜; 刘雅楠; 王大伟; 高中正; 张恒龙; 朱玥
Original assignee: Shandong Innovation Petroleum Technology Co ltd
Current assignee: Shandong Innovation Petroleum Technology Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-05-18

Abstract

The invention relates to the technical field of oil extraction in oil fields, in particular to an electric control reversing direct-drive beam pumping unit which comprises a base, a support and a synchronous belt, wherein the lower end of the support is fixedly connected with the base, the upper end of the support is rotatably connected with a walking beam through a support, a horse head is arranged at the near end of a well mouth of the walking beam, a motor is arranged at the far end of the well mouth, a lifting rope is arranged at the outer arc section of the horse head, the motor is fixedly connected with the walking beam, the synchronous belt bypasses belt pulleys arranged on two sides of the motor and is meshed with the belt pulleys, one end of the synchronous belt is fixedly connected with the base, the other end of the synchronous belt is fixedly connected with a weight box, the motor is connected with a control cabinet through a signal wire and a power wire, the synchronous.

Description

Electrically controlled reversing direct-drive beam pumping unit

Technical Field

The invention relates to the technical field of oil extraction in oil fields, in particular to an electric control reversing direct-drive beam-pumping unit.

Background

Mechanical oil extraction equipment is mainly adopted for oil extraction in an oil field, wherein the oil pumping unit mainly comprises a beam pumping unit and a non-beam pumping unit, and the electrically-controlled reversing non-beam pumping unit is widely applied in terms of long stroke, low stroke frequency, energy conservation, environmental protection and low noise.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides an electric control reversing direct-drive walking beam pumping unit, a synchronous belt 4 is driven by a motor 6 arranged on a walking beam 7 to pull the walking beam 7, and the walking beam 7 and a horse head 8 swing up and down by taking a support 10 as a fulcrum, so that oil extraction is realized safely and environmentally.

The technical scheme adopted by the invention is as follows: the utility model provides an automatically controlled switching-over directly drives beam-pumping unit, includes base 1, support 2 and hold-in range 4, 2 lower extremes of support and 1 fixed connection of base, the upper end is rotated with walking beam 7 through supporting 10 and is connected, the well head near-end of walking beam 7 is equipped with horse head 8, and the well head distal end is equipped with motor 6 the outer circular arc section of horse head 8 is equipped with lifting rope 9, motor 6 and 7 fixed connection of walking beam, hold-in range 4 is walked around and is set up in the band pulley 5 of motor 43 both sides, meshes with band pulley 5 mutually, 4 one end of hold-in range and 1 fixed connection of base, the other end and 3 fixed connection of weight box, motor 6 is connected with switch board 11 through signal line and power line.

The above technical solution can be further optimized as follows:

the motor 6 is a permanent magnet synchronous motor.

The number of the synchronous belts 4 is two.

The base 1 is equipped with two guide rails 12, two guide rails 12 and weight box 3 clearance fit.

The weight box 3 is a cylinder or a cuboid.

The electric control reversing direct-drive walking beam pumping unit provided by the invention has the advantages that the synchronous belt 4 is driven by the motor 6 arranged on the walking beam 7 to pull the walking beam 7, the walking beam 7 and the horse head 8 swing up and down by taking the support 10 as a fulcrum, and the oil extraction is realized safely and environmentally.

Drawings

FIG. 1 is a main view of an electrically controlled reversing direct-drive beam pumping unit;

FIG. 2 is a left side view of the motor pulley;

in the figure: 1-base, 2-support, 3-weight box, 4-synchronous belt, 5-belt wheel, 6-motor, 7-walking beam, 8-horse head, 9-lifting rope, 10-support, 11-control cabinet, 12-guide rail.

Detailed Description

Referring to fig. 1, the electric control reversing direct-drive walking beam pumping unit comprises a base 1, a support 2 and a synchronous belt 4, wherein the lower end of the support 2 is fixedly connected with the base 1, the upper end of the support is rotatably connected with a walking beam 7 through a support 10, a horse head 8 is arranged at the near end of a well mouth of the walking beam 7, a motor 6 is arranged at the far end of the well mouth, a lifting rope 9 is arranged at the outer arc section of the horse head 8, the motor 6 is fixedly connected with the walking beam 7, the synchronous belt 4 bypasses belt pulleys 5 arranged at two sides of a motor 43 and is meshed with the belt pulleys 5, one end of the synchronous belt 4 is fixedly connected with the base 1, the other end of the synchronous belt 4 is fixedly connected with a weight box 3, the motor 6 is connected with a control cabinet 11 through a signal wire and a power wire, when the pumping unit operates, the lifting rope 9 is connected with a polish rod of an oil well, due to the meshing relation with the synchronous belt 4, the meshing part of the synchronous belt 4 and the belt wheel 5 synchronously starts to rotate anticlockwise, the fixed end parts of the synchronous belt 4 and the base 2 are shortened, the motor 6 is driven to move downwards, the horse head 8 and the lifting rope 9 synchronously move upwards, the polish rod of the oil well is driven to move upwards, and the weight box 3 moves downwards; when the polish rod moves upwards to the upper dead point, the rotating speed of the motor 6, the belt wheel 5 and the synchronous belt 4 is zero; the motor 6 receives the descending signal of the control cabinet 11 and starts to rotate clockwise, under the action of the motor 6, the belt wheel 5 starts to rotate clockwise, due to the meshing relation with the synchronous belt 4, the synchronous belt 4 and the meshing part of the belt wheel 5 synchronously start to rotate clockwise, the synchronous belt 4 and the fixed end part of the base 2 are lengthened, the motor 6 is driven to ascend, the horse head 8 and the lifting rope 9 synchronously descend, the oil well polished rod is driven to descend, the weight box 3 ascends, when the oil well polished rod descends to a bottom dead center, the rotating speeds of the motor 6, the belt wheel 5 and the synchronous belt 4 are zero, and an oil extraction stroke of the oil pumping unit is finished.

In a preferred embodiment, the motor 6 is a permanent magnet synchronous motor, which can realize low rotation speed, large torque, energy saving and high efficiency.

The number of the carbon fiber polyurethane synchronous belts of the synchronous belt 4 is two, the carbon fiber polyurethane synchronous belts are symmetrical and balanced relative to the motor 6, the stress is uniform, the tensile strength is high, and the service life is long.

Base 1 is equipped with two guide rails 12, two guide rails 12 and weight box 3 clearance fit do benefit to weight box 3 and keep relatively stable at ascending and descending in-process, reduce the swing range, guarantee beam-pumping unit safe and stable operation.

The weight box 3 is a cylinder or a cuboid, and wind resistance is reduced in the descending or descending process of the weight box 3.

Claims

1. The utility model provides an automatically controlled switching-over directly drives beam-pumping unit, includes base (1), support (2) and hold-in range (4), support (2) lower extreme and base (1) fixed connection, the upper end is rotated with walking beam (7) through supporting (10) and is connected, the well head near-end of walking beam (7) is equipped with horse head (8), and the well head distal end is equipped with motor (6) outer circular arc section of horse head (8) is equipped with lifting rope (9), its characterized in that: motor (6) and walking beam (7) fixed connection, hold-in range (4) are walked around and are set up in band pulley (5) of motor (43) both sides, mesh mutually with band pulley (5), hold-in range (4) one end and base (1) fixed connection, the other end and weight box (3) fixed connection, motor (6) passing signal line and power line are connected with switch board (11).

2. The electrically controlled reversing direct-drive walking beam pumping unit of claim 1, which is characterized in that: the motor (6) is a permanent magnet synchronous motor.

3. The electrically controlled reversing direct-drive walking beam pumping unit of claim 2, wherein: the number of the synchronous belts (4) is two.

4. The electrically controlled reversing direct-drive walking beam pumping unit of claim 3, wherein: the base (1) is provided with two guide rails (12), and the two guide rails (12) are in clearance fit with the weight box (3).

5. The electrically controlled reversing direct-drive walking beam pumping unit of claim 4, wherein: the weight box (3) is a cylinder or a cuboid.