CN113236187A - Oil pumping machine - Google Patents
Oil pumping machine Download PDFInfo
- Publication number
- CN113236187A CN113236187A CN202110434488.9A CN202110434488A CN113236187A CN 113236187 A CN113236187 A CN 113236187A CN 202110434488 A CN202110434488 A CN 202110434488A CN 113236187 A CN113236187 A CN 113236187A
- Authority
- CN
- China
- Prior art keywords
- balance
- crank
- pumping unit
- driving
- moment
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
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- 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
- F04B47/022—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level driving of the walking beam
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- 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
- F04B47/14—Counterbalancing
Abstract
The invention is suitable for the technical field of oil extraction equipment, and provides an oil pumping unit, which comprises: a frame forming a support body; the walking beam is rotatably connected to the rack, and one end of the walking beam is connected with horse head load; the walking beam counterweight piece is fixedly connected to the walking beam, is positioned on two sides of a horse head rotating connection point with the horse head load and is used for balancing the horse head load; the crank beam is rotationally connected with the walking beam through a connecting rod; the balance block is connected to the crank beam in a sliding manner and is driven by the driving structure in a sliding manner; the driving piece is fixedly connected with the crank beam and used for driving the crank beam to rotate, the balance block is driven to slide on the crank beam through the driving structure, the position of the balance block is changed, the moment of the balance connecting rod relative to the tensile moment of the output axis of the driving piece is changed, and the balance beam is coordinated with the swinging moment of the balance block piece.
Description
Technical Field
The invention belongs to the technical field of oil extraction equipment, and particularly relates to an oil pumping unit.
Background
In recent years, with the high importance of people oriented safety production by various oil companies, a novel safe and reliable oil pumping unit which can easily adjust the balance of the oil pumping unit, adapt to different load working conditions in a wide range, reduce the labor intensity of operators is urgently needed.
At present, the most widely applied oil fields at home and abroad are beam pumping units, which can be classified into 3 types of crank balance type, beam balance type and crank + beam composite balance type according to a balance adjustment mode. The crank balance type beam pumping unit has the advantages of mature and reliable structure, low gravity center, stable operation, high reliability and the like, but has the defects of more steel consumption, difficult balance adjustment and large tension load of a connecting rod; the beam-balanced beam-pumping unit has the advantages of less steel consumption and convenient adjustment, but has the defects of unstable operation and the like.
Disclosure of Invention
The embodiment of the invention aims to provide an oil pumping unit, aiming at solving the problem of unstable operation.
The present invention is achieved as such, an oil pumping unit, comprising:
a frame forming a support body;
the walking beam is rotatably connected to the rack, and one end of the walking beam is connected with horse head load;
the walking beam counterweight piece is fixedly connected to the other end of the walking beam and used for balancing the load of the horse head;
the crank beam is rotationally connected with the walking beam through a connecting rod;
the balance block is connected to the crank beam in a sliding manner and is driven by the driving structure in a sliding manner;
the driving piece is fixedly connected with the crank beam and used for driving the crank beam to rotate, the balance block is driven to slide on the crank beam through the driving structure, the position of the balance block is changed, the moment of the balance connecting rod relative to the tensile moment of the output axis of the driving piece is changed, and the balance beam is coordinated with the swinging moment of the balance block piece.
In the embodiment of the invention, a horsehead load is connected with a rope hanger, a driving piece is started, under the driving of the driving piece, a crank beam rotates to pull a connecting rod to swing, so that a walking beam and the horsehead load are pulled to swing, a walking beam counterweight block and the horsehead load are positioned on two sides of a walking beam rotation connection point, so that the horsehead load is balanced, the crank beam rotates, when the crank beam rotates to the side, far away from the walking beam counterweight block, of the driving piece, a driving structure drives a counterweight block to slide far away from the end of the driving piece, when the crank beam rotates to be close to the side, far away from the walking beam counterweight block, of a rack, a driving structure drives a counterweight block box driving piece to be close to the driving piece, so that the position of the counterweight block changes the relative tension moment of a moment balancing connecting rod on the output axis of the driving piece in real time, and the swinging moment of the walking beam counterweight block is coordinated. Through the arrangement of the beam counterweight piece and the counterweight, the load balance of horse head load can be carried out, and meanwhile, the moment of the output axis of the driving piece is balanced and the connecting rod is balanced to the relative tension moment; the balance block is driven to slide on the crank beam through the driving structure, so that the relative positions of the beam balance block and the balance block are changed according to the swing position of the beam balance block, the relative weights of the beam balance block and the balance block are coordinated, and the stress of the oil pumping unit is balanced. The invention has the advantages that: simple structure, convenient operation, wide adjusting range and strong balancing capability.
Drawings
Fig. 1 is a schematic structural diagram of an oil pumping unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second pumping unit according to an embodiment of the present invention;
in the drawings: frame 1, horse head load 2, walking beam 3, walking beam compensating beam 4, surge tank 5, balancing weight 6, connecting rod 7, driving piece 8, crank beam 9, balancing piece 10, gear 11, bolt hole 12, fixed slot 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, a structure diagram of an oil pumping unit provided in an embodiment of the present invention includes:
a frame 1 forming a support body;
the walking beam 3 is rotatably connected to the frame 1, and one end of the walking beam is connected with a horse head load 2;
the walking beam counterweight piece is fixedly connected to the walking beam 3, is positioned on two sides of a rotating connection point of the walking beam 3 with the horse head load 2, and is used for balancing the load of the horse head load 2;
the crank beam 9 is rotationally connected with the walking beam 3 through the connecting rod 7;
the balance weight 10 is connected to the crank beam 9 in a sliding manner and is driven by the driving structure in a sliding manner;
and the driving part 8 is fixedly connected with the crank beam 9 and used for driving the crank beam 9 to rotate, and the balance block 10 is driven to slide on the crank beam 9 through the driving structure, so that the position of the balance block 10 is changed, the relative tension moment of the moment balance connecting rod 7 on the output axis of the driving part 8 is changed, and the balance beam counterweight piece swinging moment is coordinated.
In the embodiment of the invention, a horse head load 2 is connected with a rope hanger, a driving piece 8 is started, under the driving of the driving piece 8, a crank beam 9 rotates to pull a connecting rod 7 to swing, so that a walking beam 3 and the horse head load 2 are pulled to swing, a walking beam counterweight block and the horse head load 2 are positioned on two sides of a rotating connection point of the walking beam 3, so that the load balance of the horse head load 2 is carried out, the crank beam 9 rotates, when the crank beam 9 rotates to the side, far away from the walking beam counterweight block, of the driving piece 10, a balance block 10 is driven to slide away from the end of the driving piece 8 by a driving structure, when the crank beam 9 rotates to the side, close to the walking beam counterweight block, of the driving piece 10, a box driving piece 8 is driven by the driving piece, so that the position of the balance block 10 changes the relative tension moment of the moment balance connecting rod 7 on the output axis of the driving piece 8 in real time, and the balance moment of the walking beam counterweight block is coordinated with the swing moment of the balance block. Through the arrangement of the beam counterweight piece and the counterweight 10, the load balance of the horse head load 2 can be carried out, and the moment balance connecting rod 7 of the output axis of the driving piece 8 is subjected to relative tension moment; the balance weight 10 is driven by the driving structure to slide on the crank beam 9, so that the relative positions of the balance beam weight piece and the balance weight 10 are changed according to the swinging position of the balance beam weight piece, the relative weights of the balance beam weight piece and the balance weight 10 are coordinated, and the pumping unit is balanced in stress.
In one example of the present invention, the frame 1 may include a base and a support frame, the support frame is fixedly connected to the base to form a support structure, and the support frame forms a triangular support, so as to increase the stability of the support. The driving part 8 can include motor, speed reducer, belt conveying structure etc. for prior art, do not describe herein any more, the slip path of balancing piece 10 can set up actually and decide according to walking beam counter weight piece to the flexibility of setting has been increased. The walking beam 3, the frame 1 and the walking beam 3 are all steel castings or iron castings, and can be connected by welding, screws, willow joints and the like, which are not described in detail herein. The driving part 8 and the driving structure are electrically connected with the controller, and the controller can be a PLC system, so that the driving structure automatically turns to and drives, and automatic adjustment is realized. When the walking beam 3 rotates to enable the moment of the walking beam counterweight piece to be maximum relative to the walking beam 3, at the moment, when the crank beam 9 rotates to the side, far away from the walking beam counterweight piece, of the driving piece 8, the counterweight 10 slides on the crank beam 9 and is farthest away from the driving piece 8; when the crank beam 9 is rotated to the side of the driver 8 close to the walking beam weight, the counterweight 10 slides on the crank beam 9 and is closest to the driver 8, the counterweight 10 sliding between the furthest and closest points during rotation of the crank beam 9.
As a preferred embodiment of the present invention, the driving structure includes a power component, a rack and a gear 11, the power component is mounted on the balance weight 10, the output shaft of the power component (as shown in fig. 2) is coaxially and fixedly connected with the gear 11, the rack is fixedly connected to the crank beam 9, and the sliding direction of the balance weight 10 is consistent, the gear 11 is engaged with the rack, the power component drives the gear 11 to rotate, the gear 11 rotates relative to the rack, so as to move the balance weight 10, thereby the control is convenient and fast. Of course, the driving structure can also be a screw rod and screw rod sleeve combined structure, the screw rod is rotatably connected to the crank beam 9, the axis is consistent with the sliding direction of the balance block 10 and is connected with the power part, the screw rod sleeve is arranged inside the balance block 10 and is embedded on the screw rod in a matching manner, and the power part drives the screw rod to rotate so as to drive the balance block 10 to rotate.
As a preferred embodiment of the invention, the beam counterweight piece comprises a beam balance beam 4 and a balance box 5, the beam balance beam 4 is fixedly connected to the beam 3 and is obliquely arranged, the inclination angle is 15-45 degrees, the balance box 5 is fixedly connected to the beam balance beam 4 in an adjustable position, and the beam balance beam 4 is obliquely arranged, so that the beam balance beam 4 can be overlapped with the swinging of the beam 3 by the maximum moment of the beam balance beam 4, and the load can be balanced to the maximum extent. The balance box 5 can be connected in a position adjustable manner through bolts, bolts and the like, and can also be driven through a driving structure, which is not described in detail herein. By changing the position of the balance box 5 on the beam balance beam 4, the moment of the beam balance weight is changed.
As a preferred embodiment of the present invention, the balancing box 5 includes a mounting frame and balancing weights 6, the balancing weights 6 are detachably fixed on the mounting frame, and the weight of the balancing box 5 is changed by changing the number of the balancing weights 6, so that the adjustment is convenient and fast, the balancing weights 6 can be fixed by bolts, placing and limiting positions, and the like, and the weight adjustment is convenient and fast for iron castings, steel castings, or composite concrete pieces, and the like, which is not described herein in detail.
As a preferred embodiment of the present invention, the end of the crank beam 9 is provided with a fixing groove 13, the fixing groove 13 is of a split structure, the split position is pressed and fixed by a pressing component, the transmission shaft of the driving component 8 is nested inside the fixing groove 13, and the fixing groove 13 is clamped by the pressing component, so that the crank beam 9 is fixed conveniently and quickly, and the pressing component can be a bolt, a buckling limiting rod, and the like, which are not described herein. The fixed antiskid circle that is provided with of inner wall of fixed slot 13 has avoided crank beam 9 circumferential direction through the antiskid circle, and fixed slot 13 can be open-ended circular structure, does not describe here any more.
As a preferred embodiment of the invention, the crank beam 9 is provided with a rotary connecting piece, the rotary connecting piece is provided with a plurality of rotary connecting points, and the connecting rod 7 is connected with different connecting points, so that the connecting moment of the connecting rod 7 is adjusted, and the adjustment of the balance weight 10 is facilitated. The rotary connecting piece can be in a groove shape, a protruding strip shape and the like, and the rotary connecting point can be in an array type bolt hole 12, a wave shape and a rack shape.
The embodiment of the invention provides an oil pumping unit, which can balance the load of a horse head load 2 and balance the relative tension moment of a moment balance connecting rod 7 of an output axis of a driving part 8 by arranging a beam balance weight piece and a balance weight 10; the balance weight 10 is driven by the driving structure to slide on the crank beam 9, so that the relative positions of the balance beam weight piece and the balance weight 10 are changed according to the swinging position of the balance beam weight piece, the relative weights of the balance beam weight piece and the balance weight 10 are coordinated, and the pumping unit is balanced in stress.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A pumping unit, comprising:
a frame forming a support body;
the walking beam is rotatably connected to the rack, and one end of the walking beam is connected with horse head load;
the walking beam counterweight piece is fixedly connected to the other end of the walking beam and used for balancing the load of the horse head;
the crank beam is rotationally connected with the walking beam through a connecting rod;
the balance block is connected with the crank beam in a sliding manner and is driven by the driving structure in a sliding manner;
the driving piece is fixedly connected with the crank beam and used for driving the crank beam to rotate; the balance block is driven by the driving structure to slide on the crank beam, so that the position of the balance block is changed; the moment of the output axis of the driving part is balanced by the connecting rod relative tension moment, and the swinging moment of the balance beam weight block part is coordinated.
2. The pumping unit of claim 1, wherein the driving structure comprises a power member, a rack and a gear, the power member is mounted on the balance block, the output shaft of the power member is coaxially and fixedly connected with the gear, the rack is fixedly connected to the crank beam and is in accordance with the sliding direction of the balance block, and the gear is engaged with the rack.
3. The pumping unit of claim 1, wherein the driving structure comprises a screw rod and a screw rod sleeve, the screw rod is rotatably connected to the crank beam, an axis of the screw rod is consistent with a sliding direction of the balance block and is connected with the power part, and the screw rod sleeve is arranged inside the balance block and is fittingly nested on the screw rod.
4. The pumping unit of claim 1, wherein the beam counterweight member comprises a beam balance beam and a balance box, and the balance box is fixedly connected to the beam balance beam in a position-adjustable manner.
5. The pumping unit of claim 4, wherein the beam-balancing beam is fixedly connected to the beam and is arranged obliquely, and the load is balanced by overlapping the maximum moment of the beam-balancing beam with the swing of the beam.
6. The pumping unit of claim 5, wherein the balancing tank comprises a mounting frame and a counterweight block, and the counterweight block is detachably fixed on the mounting frame.
7. The pumping unit of claim 1, wherein the crank beam has a fixing groove formed at an end thereof, the fixing groove is of a split structure, and the split portion is pressed and fixed by a pressing member.
8. The pumping unit of claim 1, wherein the crank beam is provided with a rotary connecting piece, the rotary connecting piece is provided with a plurality of rotary connecting points, and the connecting moment of the connecting rod is adjusted by connecting the connecting rod with different connecting points.
9. The pumping unit of claim 8, wherein the rotational connector is slot-shaped and the rotational connection point is a pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110434488.9A CN113236187A (en) | 2021-04-22 | 2021-04-22 | Oil pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110434488.9A CN113236187A (en) | 2021-04-22 | 2021-04-22 | Oil pumping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113236187A true CN113236187A (en) | 2021-08-10 |
Family
ID=77128872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110434488.9A Pending CN113236187A (en) | 2021-04-22 | 2021-04-22 | Oil pumping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113236187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658127A (en) * | 2023-07-28 | 2023-08-29 | 大庆市华禹石油机械制造有限公司 | Pumping unit driven by voltage cylinder |
-
2021
- 2021-04-22 CN CN202110434488.9A patent/CN113236187A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658127A (en) * | 2023-07-28 | 2023-08-29 | 大庆市华禹石油机械制造有限公司 | Pumping unit driven by voltage cylinder |
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