CN112502931B - Ball screw type fracturing pump based on unidirectional motor drive - Google Patents
Ball screw type fracturing pump based on unidirectional motor drive Download PDFInfo
- Publication number
- CN112502931B CN112502931B CN202011279112.7A CN202011279112A CN112502931B CN 112502931 B CN112502931 B CN 112502931B CN 202011279112 A CN202011279112 A CN 202011279112A CN 112502931 B CN112502931 B CN 112502931B
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- China
- Prior art keywords
- gear
- screw
- clutch
- piston
- pressure manifold
- 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.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Reciprocating Pumps (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a ball screw type fracturing pump based on unidirectional motor driving, which comprises a motor, a transmission case, a piston, a screw nut, a screw support piece, a cylinder sleeve, a valve seat, a high-pressure manifold and a low-pressure manifold, wherein the transmission case is connected with the motor, the screw is connected with the transmission case, the screw nut is connected with the screw in a matched manner, one end of the piston is connected with the screw nut, the other end of the piston is connected with the cylinder sleeve, the cylinder sleeve is respectively connected with the low-pressure manifold and the high-pressure manifold through the valve seat, when the piston moves towards the motor, mud of the low-pressure manifold is sucked into the cylinder sleeve through the valve seat, and when the piston moves towards the direction far away from the motor, mud in the cylinder sleeve is pressed into the high-pressure manifold through the valve seat. The beneficial effects of the invention are as follows: the forward and reverse rotation of the screw rod or screw rod nut is controlled through the transmission of a series of gears and the opening and closing of the clutch, so that the rotational inertia in reversing is reduced, the number of cylinders of any number of pumps is theoretically obtained through the expansion of the number of the gears, the ball screw drive with high thrust is met, and the constant-speed rotation of the drive motor is ensured.
Description
Technical Field
The invention relates to the field of petroleum drilling equipment, in particular to a ball screw type fracturing pump based on unidirectional motor driving.
Background
The pump is a fluid conveying or fluid pressurizing machine, which transmits mechanical energy of a prime motor or other external energy to liquid to increase the energy of the liquid, in petroleum drilling and production equipment, a fracturing pump belongs to an important equipment, and most of fracturing pumps used in the oil field at present are single-acting reciprocating fracturing pumps, and the power transmission mode of the fracturing pump is as follows: the motor transmits power to the transmission shaft through chain transmission or belt transmission, then the gear of the transmission shaft is meshed with the large gear ring on the crankshaft to drive the crankshaft to rotate, the power loss is large, the structure is slightly complicated, and an equal phase angle difference exists between the cranks, so that larger vibration exists in the running process of the fracturing pump; therefore, it has been proposed to use a ball screw instead of a chain or a belt to reciprocate, but to drive the screw forward and backward by using a motor to rotate forward and backward in a conventional manner, so as to achieve the reciprocating motion of the screw.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a ball screw type fracturing pump based on unidirectional motor driving.
The aim of the invention is achieved by the following technical scheme: the ball screw type fracturing pump based on unidirectional motor driving comprises a motor, a transmission box, a piston, a screw nut, a screw rod supporting piece, a cylinder sleeve, a valve seat, a high-pressure manifold and a low-pressure manifold, wherein the transmission box is connected with the motor, one end of the screw rod is connected with the transmission box, the other end of the screw rod is connected with the screw rod supporting piece, the screw rod nut is connected with the screw rod in a matched mode, one end of the piston is connected with the screw nut, the other end of the piston is connected with the cylinder sleeve, the cylinder sleeve is respectively connected with the low-pressure manifold and the high-pressure manifold through the valve seat, when the piston moves towards the direction far away from the motor, mud in the cylinder sleeve is pressed into the high-pressure manifold through the valve seat;
The transmission case comprises a gear A, a gear B, a gear C, a gear D, a gear E, a clutch A, a clutch B, a shaft A and a shaft B, wherein the gear A is meshed with the gear B, the gear B and the gear D are the same in rotation direction, one half of the clutch A is coaxially and rigidly connected with the gear B, the other half of the clutch A is coaxially and rigidly connected with the gear C, one half of the clutch B is coaxially and rigidly connected with the gear D, the other half of the clutch B is coaxially and rigidly connected with the gear E, the shaft A is coaxially and rigidly connected with the gear C, the shaft B is coaxially and rigidly connected with the gear E, and the screw rod is connected with the shaft A and the shaft B.
Preferably, the piston may be replaced by a plunger.
Preferably, the motor can be connected with the transmission case after being accelerated and decelerated through the intermediate mechanism.
Preferably, the gear a is meshed with the gear B through a series of gears, and the gear a is also meshed with the gear B directly.
Preferably, the screws are paired in such a way that the screw rotation directions are opposite.
Preferably, during the opening and closing process of the clutch a and the clutch B, when one of the clutches is closed, the other clutch must be released first.
Preferably, the clutch A and the clutch B can be coaxially arranged with the screw rod or not, and only the clutch can control the screw rod to rotate along with the gear or not, if the clutch is not coaxial with the screw rod, the transition gear can be added to drive the screw rod to rotate.
Preferably, the cylinder sleeve passes through the screw rod supporting piece and is connected with the piston.
Preferably, the number of gears of the transmission case can be increased or decreased, so long as the screw rod realizes forward rotation and reverse rotation, thereby driving the screw rod nut to reciprocate.
Preferably, the gear B and the gear D are engaged by other gears, so that the rotation direction of the gear B is the same as that of the gear D.
The invention has the following advantages: the motor always rotates towards one steering direction without frequent reversing, and the forward and reverse rotation of the screw rod or the screw nut is controlled through the transmission of a series of gears and the opening and closing of the clutch, so that the screw rod or the screw nut reciprocates in a straight line, the rotational inertia in reversing is reduced, the reversing impact is smaller, the number of cylinders of any number of pumps can be theoretically obtained through the expansion of the number of gears, the ball screw drive with high thrust is met, and the constant-speed rotation of the driving motor is ensured.
Drawings
FIG. 1 is a schematic illustration of the structure of the present invention;
FIG. 2 is an internal schematic view of a transmission case of the present invention;
In the figure, 1-motor, 2-transmission case, 3-screw nut, 4-piston, 5-screw, 6-screw support, 7-cylinder sleeve, 8-valve seat, 9-high pressure manifold, 10-low pressure manifold, 11-gear a, 12-gear B, 13-gear C, 14-clutch a, 15-gear D, 16-gear E, 17-clutch B, 18-shaft a, 19-shaft B.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended beneficial purpose of the invention, the following detailed description of the specific implementation, structure, features and effects according to the present invention will be given with reference to the accompanying drawings and preferred embodiments. In the following description, the various "an embodiment" or "embodiments" are not necessarily the same embodiment, and furthermore, particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner:
As shown in fig. 1-2, the fracturing pump comprises a motor 1, a transmission case 2, a piston 4, a screw nut 3, a screw 5, a cylinder sleeve 7, a valve seat 8, a high-pressure manifold 9 and a low-pressure manifold 10, wherein the transmission case 2 is connected with the motor 1, one end of the screw 5 is connected with the transmission case 2, the other end of the screw 5 is connected with a screw support 6, the screw nut 3 is connected with the screw 5 in a matched manner, one end of the piston 4 is connected with the screw nut 3, the other end of the piston is connected with the cylinder sleeve 7, the cylinder sleeve 7 is respectively connected with the low-pressure manifold 10 and the high-pressure manifold 9 through the valve seat 8, when the piston 4 moves towards the motor 1, the slurry in the low-pressure manifold 10 is sucked into the cylinder sleeve 7 through the valve seat 8, and when the piston 4 moves towards the direction far away from the motor 1, the slurry in the cylinder sleeve 7 is pressed into the high-pressure manifold 9 through the valve seat 8;
The gear box 2 comprises a gear A11, a gear B12, a gear C13, a gear D15, a gear E16, a clutch A14, a clutch B17, a shaft A18 and a shaft B19, wherein the gear A11 is meshed with the gear B12 through a series of gears and can also be directly meshed with the gear B12, the gear B is not meshed with the gear D, the gear B12 and the gear D15 rotate in the same direction at any time through the meshing of the other gears, when the gear A11 rotates, the gear B12 and the gear D15 rotate along with the gear A in a different way through the meshing of the gears, one half of the clutch A14 is coaxially and rigidly connected with the gear B12, and the other half of the clutch A14 is coaxially and rigidly connected with the gear C13, so that when the clutch A14 is disconnected, the rotation of the gear B12 cannot influence the rotation of the gear C13; half of the clutch B17 is rigidly connected coaxially with the gear D15, and the other half is rigidly connected coaxially with the gear E16, so that when the clutch B17 is disengaged, the rotation of the gear D15 cannot affect the rotation of the gear E16, the shaft A18 is rigidly connected coaxially with the gear C13, the shaft B19 is rigidly connected coaxially with the gear E16, and the screw 5 is connected with the shaft.
As an alternative embodiment, the piston 4 may be replaced by a plunger.
As an alternative embodiment, the motor 1 may be connected to the transmission case 2 after being accelerated and decelerated by an intermediate mechanism.
As an alternative embodiment, the screw rods 5 are present in pairs in opposite directions of rotation of the screw threads.
As an alternative embodiment, during the process of opening and closing the clutch a14 and the clutch B17, when one clutch is closed, the other clutch must be firstly opened, and when both the clutch a14 and the clutch B17 are opened, the screw rod does not rotate, and the screw rod nut is stopped; when the clutch A14 is released and the clutch B17 is closed, the gear E16 is used as a driving wheel to drive the gear C13 to rotate, so that the shafts A18 and B19 simultaneously drive the corresponding screw rod 5 in opposite rotation directions to make the screw rod nut 3 do linear motion, and the piston 4 or the plunger of the pump is driven to move; when the clutch a14 is closed and the clutch B17 is disengaged, the gear C13 rotates as a drive wheel drive gear E16 in a direction exactly opposite to the direction of rotation in which the clutch a14 is disengaged and the clutch B17 is closed, thereby driving the piston 4 or plunger of the pump to move in the direction.
As an alternative embodiment, the clutch a14 and the clutch B17 may be coaxially installed with the screw 5, or may not be coaxially installed with the screw 5, and only the clutch may be required to control whether the screw 5 rotates along with the gear, if the clutch is not coaxial with the screw 5, the transition gear may be added to drive the screw to rotate.
As an alternative embodiment, the cylinder sleeve 7 is connected to the piston 4 through the screw support 6.
As an alternative embodiment, the number of gears of the transmission case 2 may be increased or decreased, so long as the screw 5 is rotated forward and backward.
As an alternative embodiment, the gear B12 and the gear D15 are engaged by other gears.
As an alternative embodiment, the clutch form of the present invention is not limited.
As an alternative embodiment, the number of cylinders of the pump may be increased or decreased by the number of gears.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications which do not creatively contribute to the present embodiment may be made by those skilled in the art after reading the present specification as long as they are protected by patent laws within the scope of claims of the present invention.
Claims (6)
1. Ball screw type fracturing pump based on unidirectional motor drive, its characterized in that: the device comprises a motor (1), a transmission case (2), a piston (4), a screw nut (3), a screw (5), a screw support (6), a cylinder sleeve (7), a valve seat (8), a high-pressure manifold (9) and a low-pressure manifold (10), wherein the transmission case (2) is connected with the motor (1), one end of the screw (5) is connected with the transmission case (2), the other end of the screw is connected with the screw support (6), the screw (5) is in a pair in a mode of opposite screw rotation direction, the screw nut (3) is connected with the screw (5) in a matched mode, one end of the piston (4) is connected with the screw nut (3), the other end of the piston is connected with the cylinder sleeve (7), the cylinder sleeve (7) is respectively connected with the low-pressure manifold (10) and the high-pressure manifold (9) through the valve seat (8), when the piston (4) moves towards the motor (1), mud of the low-pressure manifold (10) is sucked into the cylinder sleeve (7) through the valve seat (8), and when the piston (4) moves away from the motor (1) towards the direction, the mud is pressed into the high-pressure manifold (9) through the valve seat (8); the motor (1) is connected with the transmission case (2) after being accelerated and decelerated through the intermediate mechanism;
The transmission case (2) comprises a gear A (11), a gear B (12), a gear C (13), a gear D (15), a gear E (16), a clutch A (14), a clutch B (17), a shaft A (18) and a shaft B (19), wherein the gear A (11) is meshed with the gear B (12), the gear B (12) and the gear D (15) are in the same rotation direction, one half of the clutch A (14) is coaxially and rigidly connected with the gear B (12), the other half of the clutch A (14) is coaxially and rigidly connected with the gear C (13), one half of the clutch B (17) is coaxially and rigidly connected with the gear D (15), the other half of the clutch B is coaxially and rigidly connected with the gear E (16), the shaft A (18) is coaxially and rigidly connected with the gear C (13), the shaft B (19) is coaxially and rigidly connected with the gear E (16), and the screw rod (5) is connected with the shaft A (18) and the shaft B (19). During the process of releasing and closing the clutch A (14) and the clutch B (17), when one clutch is closed, the other clutch must be released first; the gear B (12) and the gear D (15) are meshed through other gears, so that the rotation direction of the gear B (12) and the rotation direction of the gear D (15) are the same, the gear C (13) and the gear E (16) are meshed with each other, and the rotation direction of the gear C (13) and the rotation direction of the gear E (16) are opposite.
2. The unidirectional motor drive-based ball screw fracturing pump of claim 1, wherein: the piston (4) is replaced by a plunger.
3. The unidirectional motor drive-based ball screw fracturing pump of claim 1, wherein: the gear A (11) is meshed with the gear B (12) through a series of gears, or the gear A (11) is directly meshed with the gear B (12).
4. The unidirectional motor drive-based ball screw fracturing pump of claim 1, wherein: the clutch A (14) and the clutch B (17) are coaxially arranged with the screw rod (5) or are not coaxially arranged with the screw rod (5), and only the clutch is required to control whether the screw rod can rotate along with the gear or not, if the clutch is not coaxial with the screw rod, the transition gear can be added to drive the screw rod (5) to rotate.
5. The unidirectional motor drive-based ball screw fracturing pump of claim 1, wherein: the cylinder sleeve (7) penetrates through the screw rod supporting piece (6) and is connected with the piston (4).
6. The unidirectional motor drive-based ball screw fracturing pump of claim 1, wherein: the number of gears of the transmission case (2) can be increased or decreased, so long as the screw rod (5) realizes forward rotation and reverse rotation, and the screw rod nut (5) is driven to reciprocate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279112.7A CN112502931B (en) | 2020-11-16 | 2020-11-16 | Ball screw type fracturing pump based on unidirectional motor drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279112.7A CN112502931B (en) | 2020-11-16 | 2020-11-16 | Ball screw type fracturing pump based on unidirectional motor drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112502931A CN112502931A (en) | 2021-03-16 |
| CN112502931B true CN112502931B (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011279112.7A Active CN112502931B (en) | 2020-11-16 | 2020-11-16 | Ball screw type fracturing pump based on unidirectional motor drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112502931B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717582B (en) * | 2022-11-28 | 2024-02-27 | 德帕姆(杭州)泵业科技有限公司 | Reciprocating pump |
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| CN102022457A (en) * | 2010-12-21 | 2011-04-20 | 浙江万里扬变速器股份有限公司 | Electro-hydraulic vehicle clutch automatic control mechanism |
| CN103397997A (en) * | 2013-08-02 | 2013-11-20 | 胜利油田泰峰机电有限责任公司 | Motor reversing driving reciprocating pump |
| CN204096763U (en) * | 2014-10-13 | 2015-01-14 | 浙江日发纺织机械股份有限公司 | Double lead guide traverse gear |
| CN105673378A (en) * | 2016-01-13 | 2016-06-15 | 江苏汉龙环保科技有限公司 | Two-way metering pump system |
| CN205350220U (en) * | 2015-10-08 | 2016-06-29 | 杨靖康 | Reversing speed reducer |
| CN106523318A (en) * | 2016-10-31 | 2017-03-22 | 深圳市世椿智能装备股份有限公司 | Two-way piston pump and control method thereof |
| CN110714906A (en) * | 2019-10-28 | 2020-01-21 | 西南石油大学 | Screw rod drive is oil jack in pit |
| CN214998066U (en) * | 2020-11-16 | 2021-12-03 | 四川宏华电气有限责任公司 | Ball screw rod type fracturing pump based on one-way motor drive |
-
2020
- 2020-11-16 CN CN202011279112.7A patent/CN112502931B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2839634Y (en) * | 2005-11-15 | 2006-11-22 | 武汉昌辉科技开发有限公司 | Grouting pump |
| CN201470679U (en) * | 2009-09-04 | 2010-05-19 | 胡卫文 | Steel pipe rotary feeding mechanism of pipe mill |
| CN102022457A (en) * | 2010-12-21 | 2011-04-20 | 浙江万里扬变速器股份有限公司 | Electro-hydraulic vehicle clutch automatic control mechanism |
| CN103397997A (en) * | 2013-08-02 | 2013-11-20 | 胜利油田泰峰机电有限责任公司 | Motor reversing driving reciprocating pump |
| CN204096763U (en) * | 2014-10-13 | 2015-01-14 | 浙江日发纺织机械股份有限公司 | Double lead guide traverse gear |
| CN205350220U (en) * | 2015-10-08 | 2016-06-29 | 杨靖康 | Reversing speed reducer |
| CN105673378A (en) * | 2016-01-13 | 2016-06-15 | 江苏汉龙环保科技有限公司 | Two-way metering pump system |
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| CN110714906A (en) * | 2019-10-28 | 2020-01-21 | 西南石油大学 | Screw rod drive is oil jack in pit |
| CN214998066U (en) * | 2020-11-16 | 2021-12-03 | 四川宏华电气有限责任公司 | Ball screw rod type fracturing pump based on one-way motor drive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112502931A (en) | 2021-03-16 |
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