WO2008017194A1 - Unité de pompage à roue rotative et moment variable entraînée par un moteur - Google Patents

Unité de pompage à roue rotative et moment variable entraînée par un moteur Download PDF

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Publication number
WO2008017194A1
WO2008017194A1 PCT/CN2006/001827 CN2006001827W WO2008017194A1 WO 2008017194 A1 WO2008017194 A1 WO 2008017194A1 CN 2006001827 W CN2006001827 W CN 2006001827W WO 2008017194 A1 WO2008017194 A1 WO 2008017194A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
pumping unit
sucker rod
frame
counterweight
Prior art date
Application number
PCT/CN2006/001827
Other languages
English (en)
Chinese (zh)
Inventor
Shouren Su
Original Assignee
Chengdu Round Oil Extraction Equipment Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Round Oil Extraction Equipment Limited filed Critical Chengdu Round Oil Extraction Equipment Limited
Priority to PCT/CN2006/001827 priority Critical patent/WO2008017194A1/fr
Publication of WO2008017194A1 publication Critical patent/WO2008017194A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level

Definitions

  • the invention relates to a pumping unit for an oil exploitation industry, namely: an electric turret variable torque balance pumping unit. Background technique
  • a direct-drive type fishing wheel pumping unit is disclosed.
  • the invention uses an outer rotor motor mounted on the top of the re-rack to directly drive the rotation of the crown wheel, thereby avoiding the use. High speed drive and reducer.
  • the pumping unit completes the reversing by controlling the steering of the motor, has a simple structure, small footprint, low energy consumption, and is easy to operate.
  • the invention has a large load difference between the no-load condition and the pumping condition, and the motor load varies widely, which is not conducive to the operating condition of the motor.
  • the object of the present invention is to provide an electric turret variable torque balance pumping unit, which has the advantages of simple structure, convenient manufacture, low cost, high efficiency, and convenient use and adjustment.
  • An electric turret variable torque balance pumping unit comprises: a base, a frame, a sucker rod and a counterweight, a sucker rod wheel mounted on the top shaft of the rack, and a driving force for driving the sucker rod wheel
  • the sucker rod is connected to the pumping wheel via a sucking steel wire rope, and is characterized in that: a counterweight wheel is further arranged coaxially with the sucker rod wheel, and the counterweight wheel rotates along the counterweight wheel when the sucker rod rises
  • the circular curve is divided into two parts: The first part is an equal radius arc, and the distance between the second part of the outer circle curve and the center of the weight wheel gradually increases in the direction of rotation; the weight is connected to the weight wheel via the weight wire.
  • the power mechanism is preferably a low-speed, high-torque, outer-rotor motor, the outer part of the motor is an inner ring gear rotor, and the stator winding is internally provided, and the stator winding is composed of a plurality of gears symmetrically distributed about a center of the circle. a claw-shaped winding, and is in meshing engagement with the ring gear rotor, the line of the stator winding
  • the ring is connected to the power supply; the sucker rod wheel is fixed to the outer periphery of the inner ring gear rotor.
  • the bottom end of the two front bracket rods of the rack is a ball head, and the ball head is in dynamic cooperation with the groove of the base; the bottom connecting rod between the two rear bracket rods of the frame
  • the adjusting nut is fixedly connected, and the adjusting nut is screwed with the adjusting bolt fixed to the base.
  • the invention has the advantages of simple structure, convenient manufacture, use and adjustment, mechanical efficiency improved by 2-3 times compared with the original pumping unit, and low manufacturing cost.
  • Figure 1 is a schematic view of the structure of the present invention.
  • Figure 2 is a schematic illustration of a low speed, high torque, outer rotor motor of the present invention.
  • Figure 3 is a schematic view of the structure of the base of the present invention.
  • Figure 4 is a schematic view showing the cooperation of the limit wire guide and the weight block in the present invention.
  • the reference numerals are: 1 is the base, 2 is the front bracket rod, 201 is the ball head, 3 is the sucker rod, 4 is the sucking steel wire rope, 5 is the sucker rod wheel, 6 is the shaft, 7 is the counterweight wheel 8 is the weight wire, 9 is the weight, 10 is the rear bracket, 11 is the bolt, 12 is the adjusting nut, 13 is the frame, 1401 is the gear claw winding, 1402 is the coil, 1403 is the inner ring rotor 1404 is the stator winding, 15 is the telescopic pulley, 16 is the screw, and 17 is the limit wire guide.
  • a preferred embodiment of the present invention is an electric slewing variable torque balancing pumping unit, comprising: a base 1, a frame 13, a sucker rod 3 and a counterweight block 9, mounted on the machine
  • the sucker rod wheel 5 on the top shaft 6 of the frame 13 drives a power mechanism for rotating the sucker rod wheel 5, and an angular displacement sensor for monitoring the rotation angle of the sucker rod wheel 5 is mounted on the shaft 6; the sucker rod 3 is pumped
  • the oil wire rope 4 is connected to the oil pumping wheel 5, and the weight wheel 7 is also mounted coaxially with the sucker rod wheel 5. When the sucker rod is raised, the outer circle curve of the weight wheel 7 is divided into two.
  • the first part is an equal radius arc, and the distance between the outer circle curve of the second part and the center of the weight wheel gradually increases in the direction of rotation; the weight 9 is connected to the weight wheel 7 via the weight wire 8.
  • the larger diameter sucker rod wheel 5 and the counterweight wheel 7 can be cast, and the two are fixedly mounted on the shaft 6, and the shaft 6 can be rotated in the bearing seat on the frame 13; the oil sucking wire rope 4 is circumferentially fixed On the sucker rod wheel 5, the weight steel wire 8 is circumferentially fixed on the weight wheel 7, and the other may also be a flexible rope of other materials; the weight 9 and the weight wire 8
  • the free end connection allows the weight 9 to move up and down and produce a change in torque that reduces the change in the output load of the engine.
  • the power mechanism may be a conventional geared motor, or a low-speed, high-torque, outer-rotor motor may be preferably employed.
  • the outer part of the motor is an inner ring gear rotor 1403, and a stator winding 1404 is disposed therein.
  • the stator winding 1404 is composed of a plurality of gear claw-shaped windings 1401 symmetrically distributed with respect to a center of the circle, and is in meshing engagement with the inner ring gear rotor 1403.
  • the coil 1402 of the stator winding 1404 is connected to a power source.
  • the gear-claw windings 1401 in the stator winding 1404 of the outer rotor motor are preferably concentrated in a sector-shaped region having an angle of less than ⁇ 50 degrees with respect to the horizontal direction. Since the inner ring gear rotor 1403 of the motor is subjected to a large radial force in this example, in order to prevent the inner ring gear rotor 1403 and the gear claw-shaped winding 1401 in the vertical direction from being unable to rotate due to load stress deformation, Therefore, the gear claw windings 1401 are distributed in a sector-shaped region within a certain angle with the horizontal direction.
  • the outer rotor motor of the six-gear-claw winding 1401 is preferably used, and the gear-claw winding 1401 can be adjusted, for example, twelve according to actual needs.
  • the inner ring rotor 1403 is formed by inlaying the rotor core and the rotor casing, and the sucker rod wheel 5 is directly fixed outside the rotor casing;
  • the stator winding 1404 is in which the stator core and the stator seat are inlaid and fixed, and the windings of each phase are respectively wound with a coil 1402.
  • the middle shaft of the stator winding 1404 is fixed by bearings, and six circular air convection cooling holes are evenly distributed on the two ends.
  • a limit wire guide 17 is also mounted on the frame 2, as shown in FIG. 4, the limit wire
  • the guide rails 17 are obliquely mounted on the frame 2 on both sides of the weights 9.
  • the weights 9 are restricted by the limit wire guides 17 when moving up and down, and the swing amplitude is reduced to reduce energy loss.
  • the bottom ends of the two front bracket rods 2 of the frame 13 are ball ends 201, and the ball head 201 is in dynamic engagement with the grooves of the base 1;
  • the connecting rod at the bottom of the two rear bracket rods 10 of the frame 13 is fixed to the adjusting nut 12, and the adjusting nut 12 is screw-fitted with the adjusting bolt 11 fixed to the base 1.
  • the frame 13 is swayed by the ball 201 at the bottom end of the two front bracket rods 2, so that the frame 13 is tilted backward to leave the front space.
  • the base 1 of the lower portion of the frame 13 is provided with four telescopic pulleys 15 and a groove of the base 1; the telescopic pulley 15 and the lower screw 16 are upper and lower.
  • the lead screw 16 is disposed in the recess of the base 1, and the screwing mechanism is engaged with the lead screw 16.
  • the screwing mechanism is one of a worm gear mechanism or a hydraulic mechanism or a pneumatic mechanism.
  • the telescopic pulley 15 In the working state, the telescopic pulley 15 is retracted into the base. When the entire frame 13 is moved, the telescopic pulley 15 is unscrewed by the rotating mechanism to rotate the screw 16, so that the frame 13 is conveniently slid on the base 1.
  • the rotating mechanism may adopt a worm gear mechanism, or may be ejected by a hydraulic jack, or a pneumatic jack may be used to eject the lead screw 16 from the recess of the base 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne une unité de pompage à roue rotative et moment variable entraînée par un moteur, comprenant une base (1), un châssis (13), une tige de pompage (3) et un contrepoids (9), une roue de tige (5) montée sur un arbre sur le dessus du châssis (13), et un mécanisme d'entraînement pour entraîner la roue de tige (5). La tige de pompage (3) est fixée sur la roue de tige (5) à travers un câble de pompage (4). Une roue de contrepoids (7) est coaxiale à la roue de tige (5). Lorsque la tige de pompage monte, la courbe en cercle exinscrit de la roue de contrepoids est constituée de deux parties dans la direction de rotation de la roue de contrepoids. La première partie est un arc à rayon constant. La distance entre la seconde partie de la courbe en cercle exinscrit et le centre de la roue de contrepoids augmente graduellement dans la direction de rotation de la roue de contrepoids. Le contrepoids (9) est fixé sur la roue de contrepoids (7) par un câble de contrepoids (8). La structure de l'unité de pompage est simple, et l'unité de pompage est facile à faire fonctionner.
PCT/CN2006/001827 2006-07-24 2006-07-24 Unité de pompage à roue rotative et moment variable entraînée par un moteur WO2008017194A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/001827 WO2008017194A1 (fr) 2006-07-24 2006-07-24 Unité de pompage à roue rotative et moment variable entraînée par un moteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/001827 WO2008017194A1 (fr) 2006-07-24 2006-07-24 Unité de pompage à roue rotative et moment variable entraînée par un moteur

Publications (1)

Publication Number Publication Date
WO2008017194A1 true WO2008017194A1 (fr) 2008-02-14

Family

ID=39032596

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/001827 WO2008017194A1 (fr) 2006-07-24 2006-07-24 Unité de pompage à roue rotative et moment variable entraînée par un moteur

Country Status (1)

Country Link
WO (1) WO2008017194A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758489A (zh) * 2014-01-03 2014-04-30 浙江德清西传电气科技有限公司 一种新型节能立式抽油机
CN110863802A (zh) * 2019-12-26 2020-03-06 祁晨龙 一种游梁式抽油机支臂结构及其使用方法
CN116181248A (zh) * 2023-01-17 2023-05-30 山东爱特机电技术有限责任公司 一种储能式电动钻修井机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6194554A (ja) * 1984-10-16 1986-05-13 Japan Servo Co Ltd アウタロ−タ形ステツピングモ−タ
CN2236032Y (zh) * 1995-11-13 1996-09-25 石油大学(华东) 双变径摆轮式抽油机
CN2325555Y (zh) * 1997-12-06 1999-06-23 阎书文 螺旋式换向抽油机
CN2371367Y (zh) * 1998-12-07 2000-03-29 大庆石油管理局第五采油厂 渐开线型双天轮抽油机
CN1425845A (zh) * 2002-12-09 2003-06-25 大港油田集团有限责任公司 直驱式天轮抽油机
CN1456828A (zh) * 2003-03-11 2003-11-19 尹万春 转动变力臂机构
CN2802077Y (zh) * 2005-04-18 2006-08-02 苏首人 电动回转轮变力矩平衡抽油机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6194554A (ja) * 1984-10-16 1986-05-13 Japan Servo Co Ltd アウタロ−タ形ステツピングモ−タ
CN2236032Y (zh) * 1995-11-13 1996-09-25 石油大学(华东) 双变径摆轮式抽油机
CN2325555Y (zh) * 1997-12-06 1999-06-23 阎书文 螺旋式换向抽油机
CN2371367Y (zh) * 1998-12-07 2000-03-29 大庆石油管理局第五采油厂 渐开线型双天轮抽油机
CN1425845A (zh) * 2002-12-09 2003-06-25 大港油田集团有限责任公司 直驱式天轮抽油机
CN1456828A (zh) * 2003-03-11 2003-11-19 尹万春 转动变力臂机构
CN2802077Y (zh) * 2005-04-18 2006-08-02 苏首人 电动回转轮变力矩平衡抽油机

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758489A (zh) * 2014-01-03 2014-04-30 浙江德清西传电气科技有限公司 一种新型节能立式抽油机
CN110863802A (zh) * 2019-12-26 2020-03-06 祁晨龙 一种游梁式抽油机支臂结构及其使用方法
CN116181248A (zh) * 2023-01-17 2023-05-30 山东爱特机电技术有限责任公司 一种储能式电动钻修井机

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