CN210714622U - Automatic balancing device of oil pumping unit - Google Patents
Automatic balancing device of oil pumping unit Download PDFInfo
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- CN210714622U CN210714622U CN201921062493.6U CN201921062493U CN210714622U CN 210714622 U CN210714622 U CN 210714622U CN 201921062493 U CN201921062493 U CN 201921062493U CN 210714622 U CN210714622 U CN 210714622U
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- crank
- pumping unit
- fixing
- automatic balancing
- balancing device
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Abstract
The utility model discloses a beam-pumping unit automatic balancing unit belongs to oil production equipment technical field. The utility model has the advantages that the rotating mechanism and the power mechanism are arranged on the oil pumping unit, the sliding crank in the rotating mechanism can rotate under the driving of the power mechanism, and meanwhile, the balance slide block in the rotating mechanism can also slide relative to the sliding crank; because power unit drives this slip crank pivoted angular velocity invariant for this balanced slider is located this slip crank's second end, and this slip crank is in horizontal position, and when this slip crank was in the counterbalance structure among the prior art, the balanced slider in the structure that this embodiment provided is the arm of force longer at the rotation in-process, and the linear velocity is great, so kinetic energy is great, at the downward pivoted in-process of this slip crank's second end, provide power unit with above-mentioned kinetic energy, supplementary power unit drives the horse head motion, the motor power consumption has been reduced, the life of motor has been improved.
Description
Technical Field
The utility model relates to an oil production equipment technical field, in particular to beam-pumping unit automatic balancing unit.
Background
In current oil field production, a crank pumping unit is generally used for oil extraction, and the working principle of the crank pumping unit is as follows: the motor supplies power to drive the mule head to reciprocate up and down, and the mule head drives the deep-well pump piston to reciprocate up and down through the sucker rod string, so that crude oil is lifted to the ground from the well bottom.
The pumping unit is characterized by bearing alternating load. During the upstroke, the load born by the horsehead of the pumping unit is larger, and during the downstroke, the load born by the horsehead is smaller. Because the load difference of the up stroke and the down stroke is very large, the pumping unit can not work normally, and the motor is easy to burn out. In order to solve the problems, a balance block is usually arranged on a crank, when the pumping unit strokes upwards, the balance block runs downwards, the gravitational potential energy of the balance block is converted into kinetic energy to assist the motor to rotate, so that the motor can overcome the load on the horse head without consuming larger power; during the down stroke, the balance block moves upwards to convert part of the energy of the motor into the gravitational potential energy of the balance block, so that the actual load difference born by the motor during the up-down stroke of the pumping unit is reduced, and the motor is protected.
However, since the load on the horse head is not a fixed value, for example, when the horse head is located between the middle position and the top dead center during the up stroke of the pumping unit, the load on the horse head is large, the kinetic energy required by the horse head is large, even under the action of the above balance weight, the motor still needs to output large power to drive the horse head, which can reduce the service life of the motor, and there is also much energy waste during the down stroke.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a beam-pumping unit automatic balancing unit, the easy loss of motor and the easy extravagant problem of energy when can solving the balancing piece device commonly used at present. The technical scheme is as follows:
the utility model provides an automatic balancing unit of beam-pumping unit, this automatic balancing unit of beam-pumping unit includes: the device comprises a power mechanism, a rotating mechanism and a fixing mechanism;
the power mechanism comprises: the motor and the reduction gearbox are positioned on the fixing mechanism;
this slewing mechanism includes: the sliding crank, the balance slide block and the auxiliary crank;
the first end of the sliding crank is vertically connected with the output shaft of the reduction gearbox;
the balance slide block is arranged on the sliding crank in a sliding way;
the first end of the auxiliary crank is rotatably connected with the balance slide block, and the second end of the auxiliary crank is rotatably connected with the fixing mechanism;
in the up stroke, when the horse head of the pumping unit is positioned at the middle position between the bottom dead center and the top dead center, the sliding crank rotates downwards to be parallel to the ground, and meanwhile, the balance slide block slides to the second end of the sliding crank;
when the horse head of the pumping unit continues to move upwards, the sliding crank rotates downwards.
In one possible design, the balancing slider includes: the connecting plate is provided with a plurality of U-shaped grooved wheels which are rotatably connected with the connecting plate;
the connecting plate is rotatably connected with the auxiliary crank;
the plurality of U-shaped grooved wheels can slide along the sliding crank.
In one possible design, the sliding crank comprises two rods parallel to each other and a plurality of connecting pieces arranged between the two rods;
at least one of the two rod bodies is rotatably connected with the reduction gearbox;
the plurality of U-shaped sheaves includes: a first U-shaped groove wheel set and a second U-shaped groove wheel set;
the first U-shaped groove wheel set can slide along one rod body, and the second U-shaped groove wheel set can slide along the other rod body.
In one possible design, the automatic balancing device of the oil pumping unit further comprises a first bearing;
the inner ring of the first bearing is fixed on the side wall of the balance slide block, and the outer ring of the first bearing is connected with the first end of the auxiliary crank.
In one possible design, the fixing mechanism comprises a first fixing piece and a second fixing piece which are connected with a base of the pumping unit;
the first fixing piece is used for fixing the motor and the reduction gearbox;
the second fixing piece is used for connecting the second end of the auxiliary crank.
In a possible design, a second bearing is arranged on a side wall of the second fixing piece opposite to the first fixing piece, and an inner ring of the second bearing is fixed on the second fixing piece;
the second end of the auxiliary crank is connected with the outer ring of the second bearing.
In one possible design, the second fixing member includes: the device comprises a fixed frame, at least one first adjusting cylinder and at least one first adjusting rod;
the at least one first adjusting cylinder is arranged on the top of the fixed frame;
each first adjusting rod is slidably sleeved in the corresponding first adjusting cylinder;
the second bearing is fixed on the at least one first adjusting rod.
In one possible design, the second fixing member further includes: at least one first fixing bolt;
the wall of the at least one first adjusting cylinder is provided with a threaded through hole;
the at least one first fixing bolt penetrates through the corresponding threaded through hole in the first adjusting cylinder until the at least one first fixing bolt abuts against the first adjusting rod in the first adjusting cylinder so as to fix the first adjusting rod.
In one possible design, the second fixing member is horizontally slidably disposed on the base.
In one possible design, the second fixing member further includes: the at least one second adjusting rod is positioned on the base, the at least one second adjusting cylinder is horizontally arranged at the bottom of the at least one second fixing piece, and the at least one second fixing bolt is arranged on the second adjusting rod;
the at least one second adjusting cylinder is sleeved on the at least one second adjusting rod;
the at least one second adjusting cylinder is provided with a threaded through hole, and the end part of the at least one second fixing bolt penetrates through the corresponding threaded through hole and abuts against the at least one second adjusting rod.
The rotating mechanism and the power mechanism are arranged on the oil pumping unit, the sliding crank in the rotating mechanism can rotate under the driving of the power mechanism, and meanwhile, the balance slide block in the rotating mechanism can also slide relative to the sliding crank; because power unit drives this slip crank pivoted angular velocity invariant for this balanced slider is located this slip crank's second end, and this slip crank is in horizontal position, and when this slip crank was in the counterbalance structure among the prior art, the balanced slider in the structure that this embodiment provided is the arm of force longer at the rotation in-process, and the linear velocity is great, so kinetic energy is great, at the downward pivoted in-process of this slip crank's second end, provide power unit with above-mentioned kinetic energy, supplementary power unit drives the horse head motion, the motor power consumption has been reduced, the life of motor has been improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an automatic balancing device of a pumping unit provided by an embodiment of the present invention.
The various reference numbers in the drawings are illustrated below:
1-a power mechanism;
11-motor, 12-reduction box;
2-a rotation mechanism;
21-a sliding crank;
211-rod body, 212-connecting piece;
22-a balancing slide block;
221-connecting plate, 222-U-shaped grooved wheel;
23-an auxiliary crank;
3-a fixing mechanism;
31-a first fixture;
32-a second fixture;
321-a fixed frame, 322-a first adjusting cylinder, 323-a first adjusting rod, 324-a first fixing bolt, 325-a second adjusting rod, 326-a second adjusting cylinder and 327-a second fixing bolt;
4-a first bearing;
5-second bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a structural schematic diagram of an automatic balance device of a pumping unit provided in the embodiment of the present invention, the automatic balance device of a pumping unit includes: the device comprises a power mechanism 1, a rotating mechanism 2 and a fixing mechanism 3; this power unit 1 includes: the motor 11 and the reduction box 12 are connected with the output shaft of the motor 11, and the motor 11 and the reduction box 12 are positioned on the fixing mechanism 3; the rotating mechanism 2 includes: a slide crank 21, a balance block 22, and an auxiliary crank 23; the first end of the sliding crank 21 is vertically connected with the output shaft of the reduction gearbox 12; the balance slide block 22 is slidably disposed on the slide crank 21; a first end of the auxiliary crank 23 is rotatably connected with the balance slide block 22, and a second end of the auxiliary crank 23 is rotatably connected with the fixing mechanism 3; in the up stroke, when the horse head of the pumping unit is located at the middle position between the bottom dead center and the top dead center, the sliding crank 21 rotates downwards to be parallel to the ground, and simultaneously the balance slide block 22 slides to the second end of the sliding crank 21; when the horse head of the pumping unit continues to move upward, the sliding crank 21 rotates downward.
Following the embodiment of the utility model provides a beam-pumping unit automatic balancing unit's theory of operation details:
the motor 11 and the reduction box 12 are located on the fixing mechanism 3, the motor 11 drives the sliding crank 21 to rotate through the reduction box 12, the sliding crank 21 drives the balance slider 22 and the first end of the auxiliary crank 23 to rotate, and meanwhile, as the auxiliary crank 23 rotates relative to the fixing mechanism 3 through the second end, the balance slider 22 moves relative to the sliding crank 21, so that the force arm of the balance slider 22 in the rotating process is changed continuously.
In the upper stroke of the pumping unit, the horse head moves from the bottom dead center to the top dead center, and the sliding crank 21 rotates from the top to the bottom, wherein when the horse head of the pumping unit is located at the middle position between the bottom dead center and the top dead center, the sliding crank 21 is parallel to the ground, and the balance slider 22 is located at the second end of the sliding crank 21, at this time, the moment arm of force of the balance slider 22 is the longest in the rotating process, and compared with the balance block structure in the prior art, in the process that the horse head of the pumping unit moves from the middle position to the top dead center, and the sliding crank 21 rotates downwards to the bottom in parallel to the ground, the structure can provide more kinetic energy to the power mechanism 1, so that the power mechanism 1 drives the horse head to move. In the down stroke of the oil pumping unit, the donkey head moves from the top dead center to the bottom dead center, and meanwhile, the sliding crank 21 rotates from the bottom to the top, so that the kinetic energy provided by the motor is converted into gravitational potential energy for output in the up stroke period.
The rotating mechanism and the power mechanism are arranged on the oil pumping unit, the sliding crank in the rotating mechanism can rotate under the driving of the power mechanism, and meanwhile, the balance slide block in the rotating mechanism can also slide relative to the sliding crank; because power unit drives this slip crank pivoted angular velocity invariant for this balanced slider is located this slip crank's second end, and this slip crank is in horizontal position, and when this slip crank was in the counterbalance structure among the prior art, the balanced slider in the structure that this embodiment provided is the arm of force longer at the rotation in-process, and the linear velocity is great, so kinetic energy is great, at the downward pivoted in-process of this slip crank's second end, provide power unit with above-mentioned kinetic energy, supplementary power unit drives the horse head motion, the motor power consumption has been reduced, the life of motor has been improved.
In one possible design, the balancing slider 22 comprises: a connection plate 221, a plurality of U-shaped grooved wheels 222 rotatably connected with the connection plate 221; the connecting plate 221 is rotatably connected with the auxiliary crank 23; the plurality of U-shaped sheaves 222 are slidable along the slide crank 21.
The connecting plate 221 may be a steel plate with a rectangular cross section for fixing the rotation shafts of the U-shaped grooved wheels 222, and the U-shaped grooves of the U-shaped grooved wheels 222 are engaged with both sides of the slide crank 21. The number of the connection plates 221 may be one, and is provided at one side of the plurality of U-shaped grooved wheels 222; the number of the connecting plates 221 can also be two, the connecting plates are arranged on two side surfaces of the plurality of U-shaped grooved wheels 222 in parallel, and the plane of the two connecting plates 221 is perpendicular to the axes of the plurality of U-shaped grooved wheels 222.
In a possible design, the sliding crank 21 comprises two rods 211 parallel to each other and a plurality of connectors 212 arranged between the two rods 211; at least one of the two rod bodies 211 is rotatably connected with the reduction gearbox 12; the plurality of U-shaped grooved wheels 222 includes: a first U-shaped groove wheel set and a second U-shaped groove wheel set; the first U-shaped groove wheel set can slide along one rod body, and the second U-shaped groove wheel set can slide along the other rod body.
The U-shaped groove of the first U-shaped groove wheel set is clamped on one rod body, and the U-shaped groove of the second U-shaped groove wheel set is clamped on the other rod body. The two rod bodies 211 of the sliding crank 21 are relatively fixed, and the plane formed by the two rod bodies 211 is parallel to the rotation plane of the sliding crank 21, so that the planes where the axes of the U-shaped pulleys 222 of the balance sliding block 22 are located are always overlapped with the rotation plane of the sliding crank 21, and the torsion of the balance sliding block 22 is avoided.
In one possible design, the automatic balancing device of the oil pumping unit further comprises a first bearing 4; the inner race of the first bearing 4 is fixed to the side wall of the balancing slider 22 and the outer race is connected to the first end of the auxiliary crank 23. For rotatably connecting a first end of the auxiliary crank 23 to the balancing slide 22. For example, the first bearing 4 may be a deep groove ball bearing.
In a possible design, the fixing mechanism 3 comprises a first fixing member 31 and a second fixing member 32 connected with the base of the pumping unit; the first fixing member 31 is used for fixing the motor 11 and the reduction box 12; the second fixing member 32 is used to connect the second end of the auxiliary crank 23.
The first fixing member 31 and the first fixing member 31 may be formed by welding a metal rod to form a frame body, and have a function of fixing or supporting each member thereon.
In a possible design, a second bearing 5 is arranged on a side wall of the second fixing member 32 opposite to the first fixing member 31, and an inner ring of the second bearing 5 is fixed on the second fixing member 32; the second end of the auxiliary crank 23 is connected to the outer ring of the second bearing 5. For rotatably connecting the second end of the countercrank 23 to the fixing means 3. For example, the second bearing 5 may be a deep groove ball bearing.
In one possible design, the second attachment member 32 includes: a fixed frame 321, at least one first adjusting cylinder 322 and at least one first adjusting rod 323; the at least one first adjusting cylinder 322 is disposed on the top of the fixing frame 321; each first adjusting rod 323 can be slidably sleeved in the corresponding first adjusting cylinder 322; the second bearing 5 is fixed to the at least one first adjustment lever 323.
The fixing frame 321 may include a triangular frame body and a T-shaped reinforcing rod disposed inside the triangular frame body, for reinforcing the structure of the fixing frame 321. The first adjusting lever 323 is movable within the first adjusting cylinder 322 to adjust the relative position between the second end of the auxiliary crank 23 and the second fixing member 32 in the up-down direction, so that the rotating mechanism 2 operates smoothly and accurately.
In one possible design, the second fixing member 32 further includes: at least one first fixing bolt 324; the at least one first adjustment barrel 322 has a threaded through-hole in a wall; the at least one first fixing bolt 324 passes through the corresponding threaded through hole of the first adjusting cylinder 322 until abutting against the first adjusting rod 323 in the first adjusting cylinder 322, so as to fix the first adjusting rod 323.
The threaded through hole on the wall of the first adjusting cylinder 322 may be directly formed on the wall of the first adjusting cylinder 322, or a through hole may be formed on the wall of the first adjusting cylinder 322, and then a nut of a corresponding type may be welded to the through hole. By screwing the first fixing bolt 324, the first adjusting lever 323 is fixed, and when the first adjusting lever 323 needs to be moved, the first fixing bolt 324 is loosened, and then the position of the first adjusting lever 323 is adjusted.
In one possible design, the second fixing member 32 is horizontally slidably disposed on the base. Thereby facilitating adjustment of the relative position in the horizontal direction between the second end of the auxiliary crank 23 and the second fixing member 32 to allow smooth and accurate operation of the rotating mechanism 2.
In one possible design, the second fixing member 32 further includes: at least one second adjusting rod 325 on the base, at least one second adjusting cylinder 326 horizontally arranged at the bottom of the at least one second fixing member 32, and at least one second fixing bolt 327; the at least one second adjustment cylinder 326 is mounted around the at least one second adjustment rod 325; the at least one second adjusting cylinder 326 is provided with a threaded through hole, and an end of the at least one second fixing bolt 327 passes through the corresponding threaded through hole to abut against the at least one second adjusting rod 325.
The second adjustment rod 325 can move in the second adjustment cylinder 326, and the threaded through hole on the wall of the second adjustment cylinder 326 can be directly formed on the wall of the second adjustment cylinder 326, or a through hole can be formed on the wall of the second adjustment cylinder 326, and then a nut of a corresponding type is welded on the through hole. By screwing the second fixing bolt 327, the second adjusting lever 325 is fixed, and when the second adjusting lever 325 needs to be moved, the second fixing bolt 327 needs to be loosened, and then the position of the second adjusting lever 325 is adjusted.
Above-mentioned all optional technical scheme can adopt arbitrary combination to form the optional embodiment of this utility model, and the repeated description is no longer given here.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a beam-pumping unit automatic balancing unit which characterized in that, beam-pumping unit automatic balancing unit includes: the device comprises a power mechanism (1), a rotating mechanism (2) and a fixing mechanism (3);
the power mechanism (1) comprises: the motor (11) and the reduction gearbox (12) are connected with an output shaft of the motor (11), and the motor (11) and the reduction gearbox (12) are positioned on the fixing mechanism (3);
the rotating mechanism (2) comprises: a slide crank (21), a balance slide block (22) and an auxiliary crank (23);
the first end of the sliding crank (21) is vertically connected with the output shaft of the reduction gearbox (12);
the balance slide block (22) is slidably arranged on the sliding crank (21);
the first end of the auxiliary crank (23) is rotatably connected with the balance slide block (22), and the second end of the auxiliary crank (23) is rotatably connected with the fixing mechanism (3);
in the up stroke, when the horse head of the pumping unit is positioned at the middle position between the bottom dead center and the top dead center, the sliding crank (21) rotates downwards to be parallel to the ground, and meanwhile, the balance slide block (22) slides to the second end of the sliding crank (21);
when the horse head of the oil pumping unit continues to move upwards, the sliding crank (21) rotates downwards.
2. The automatic balancing device of a pumping unit according to claim 1, characterized in that the balancing slider (22) comprises: a connecting plate (221), a plurality of U-shaped sheaves (222) rotatably connected with the connecting plate (221);
the connecting plate (221) is rotatably connected with the auxiliary crank (23);
the plurality of U-shaped sheaves (222) are slidable along the slide crank (21).
3. The automatic balancing device of a pumping unit according to claim 2, characterized in that the sliding crank (21) comprises two rods (211) parallel to each other and a plurality of connectors (212) arranged between the two rods (211);
at least one of the two rod bodies (211) is rotatably connected with the reduction gearbox (12);
the plurality of U-shaped sheaves (222) comprises: a first U-shaped groove wheel set and a second U-shaped groove wheel set;
the first U-shaped groove wheel set can slide along one rod body, and the second U-shaped groove wheel set can slide along the other rod body.
4. The automatic balancing device for pumping unit according to claim 1, characterized in that it further comprises a first bearing (4);
the inner ring of the first bearing (4) is fixed on the side wall of the balance slide block (22), and the outer ring of the first bearing is connected with the first end of the auxiliary crank (23).
5. The automatic balancing device of a pumping unit according to claim 1, characterized in that the fixing mechanism (3) comprises a first fixing member (31) and a second fixing member (32) connected to the base of the pumping unit;
the first fixing piece (31) is used for fixing the motor (11) and the reduction box (12);
the second fixing piece (32) is used for connecting the second end of the auxiliary crank (23).
6. The automatic balancing device of the oil pumping unit according to claim 5, characterized in that a second bearing (5) is arranged on the side wall of the second fixed part (32) opposite to the first fixed part (31), and the inner ring of the second bearing (5) is fixed on the second fixed part (32);
the second end of the auxiliary crank (23) is connected with the outer ring of the second bearing (5).
7. The automatic balancing device of a pumping unit according to claim 6, characterized in that the second fixed member (32) comprises: a fixed frame (321), at least one first adjusting cylinder (322) and at least one first adjusting rod (323);
the at least one first adjusting cylinder (322) is arranged on the top of the fixed frame (321);
each first adjusting rod (323) can be sleeved in the corresponding first adjusting cylinder (322) in a sliding manner;
the second bearing (5) is fixed to the at least one first adjusting lever (323).
8. The automatic balancing device of a pumping unit according to claim 7, characterized in that the second fixed member (32) further comprises: at least one first fixing bolt (324);
the wall of the at least one first adjusting cylinder (322) is provided with a threaded through hole;
the at least one first fixing bolt (324) penetrates through a corresponding threaded through hole in the first adjusting cylinder (322) until the at least one first fixing bolt abuts against a first adjusting rod (323) in the first adjusting cylinder (322) so as to fix the first adjusting rod (323).
9. The automatic balancing device of a pumping unit according to claim 5, characterized in that the second fixed member (32) is horizontally slidably disposed on the base.
10. The automatic balancing device of a pumping unit according to claim 9, characterized in that the second fixed member (32) further comprises: at least one second adjusting rod (325) positioned on the base, at least one second adjusting cylinder (326) horizontally arranged at the bottom of the at least one second fixing piece (32), and at least one second fixing bolt (327);
the at least one second adjusting cylinder (326) is sleeved on the at least one second adjusting rod (325);
the at least one second adjusting cylinder (326) is provided with a threaded through hole, and the end part of the at least one second fixing bolt (327) penetrates through the corresponding threaded through hole to abut against the at least one second adjusting rod (325).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921062493.6U CN210714622U (en) | 2019-07-08 | 2019-07-08 | Automatic balancing device of oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921062493.6U CN210714622U (en) | 2019-07-08 | 2019-07-08 | Automatic balancing device of oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210714622U true CN210714622U (en) | 2020-06-09 |
Family
ID=70964276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921062493.6U Active CN210714622U (en) | 2019-07-08 | 2019-07-08 | Automatic balancing device of oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210714622U (en) |
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2019
- 2019-07-08 CN CN201921062493.6U patent/CN210714622U/en active Active
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