CN112503153B - Device and method for realizing reciprocating motion of fracturing pump through rotation of lead screw nut - Google Patents
Device and method for realizing reciprocating motion of fracturing pump through rotation of lead screw nut Download PDFInfo
- Publication number
- CN112503153B CN112503153B CN202011279169.7A CN202011279169A CN112503153B CN 112503153 B CN112503153 B CN 112503153B CN 202011279169 A CN202011279169 A CN 202011279169A CN 112503153 B CN112503153 B CN 112503153B
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- screw nut
- gear
- brake
- lead screw
- fracturing pump
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- 230000033001 locomotion Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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- 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
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a device and a method for realizing reciprocating motion of a fracturing pump through screw nut rotation, wherein the device comprises a brake B, a gear C, a screw nut B, a motor and a screw rod B, wherein the gear C is connected with a power output end of the motor, the gear C is meshed with the gear B, the screw rod nut B is sleeved on the screw rod B, the gear B is sleeved on the screw rod nut B, the brake B is matched with the screw rod nut B, and the device realizes reciprocating motion of the fracturing pump through the method for realizing reciprocating motion of the fracturing pump through screw rod nut rotation. The beneficial effects of the invention are as follows: by reducing the moment of inertia in commutation, the commutation shock is smaller in the case of a constant drive speed.
Description
Technical Field
The invention relates to the field of mechanical equipment, in particular to a device and a method for realizing reciprocating motion of a fracturing pump through screw nut rotation.
Background
The fracturing pump is a fluid conveying or fluid pressurizing machine, and transmits mechanical energy of a prime motor or other external energy to liquid to increase the energy of the liquid, and in petroleum drilling equipment, the fracturing pump belongs to an important equipment, and most of the fracturing pumps used on the oil field at present are single-acting reciprocating fracturing pumps, and the power transmission mode of the fracturing pump in the form 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 larger, the structure is slightly complicated, and equal phase angle differences exist among the cranks, so that larger vibration exists in the running process of the fracturing pump, although some patents realize the operation of the pump in a ball screw mode, the operation is realized only through the combination of the gears, the reciprocating operation mode of the ball screw is still carried out conventionally, and no practical fracturing pump in a ball screw mode exists at present.
The common ball screw reciprocates in two ways:
1. The forward and reverse rollaway nest is made on the screw, and then the forward and reverse rotation of the screw or screw nut is controlled, so that the purpose of the ball screw reciprocating motion is achieved, and the disadvantage of the mode is that: because of the existence of the front and back rollaway nest, the thrust is reduced, and meanwhile, if the screw or the nut is required to always rotate at a constant speed, the two ends of the rollaway nest can bear very large impact, so that the service life of the ball screw is greatly reduced.
2. The motor directly controls the forward and reverse rotation of the driving motor, and the motor directly drives the screw rod (or screw nut) through a rotary transmission device, so that the purpose of ball screw reciprocating motion is achieved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and a method for realizing reciprocating motion of a fracturing pump through screw nut rotation.
The aim of the invention is achieved by the following technical scheme: the device comprises a brake B, a gear C, a screw nut B, a motor and a screw B, wherein the gear C is connected with a power output end of the motor, the gear C is meshed with the gear B, the screw nut B is sleeved on the screw B, the gear B is sleeved on the screw nut B, and the brake B is matched with the screw nut B.
Preferably, the device further comprises a gear A, a screw rod nut A and a brake A, wherein the gear A is sleeved on the screw rod nut A, the screw rod nut A is sleeved on the screw rod A, the brake A is matched with the screw rod nut A, the gear A is meshed with the gear B, the screw rod A and the screw rod B rotate simultaneously, the rotation directions are opposite, and when the screw rod nut does not rotate, the screw rod nut can do linear motion in one direction simultaneously, and the rotation speed of the screw rod nut is guaranteed to be consistent by the gear A and the gear B.
Preferably, the brake A is coaxially arranged with the screw nut A, and the brake B is coaxially arranged with the screw nut B.
Preferably, the brake A is arranged in a different axis from the screw nut A, the brake B is arranged in a different axis from the screw nut B, and the brake A and the brake B are respectively meshed with the gears on the screw nut A and the screw nut B through gears.
A method for implementing reciprocating motion of a fracturing pump through screw-nut rotation, comprising the following steps:
s, closing a brake B, wherein the screw nut B does not rotate, and the screw B is pushed to advance by the rotation of the screw B;
S, a brake B is loosened, the motor does not run and can be driven reversely by a gear C, a screw nut B can rotate along with the screw B, the screw nut B is decelerated in the linear direction, and when the rotating speed of the screw nut B is the same as that of the screw nut B, the screw nut B does not move in the linear direction;
S, the brake B is loosened, the motor drives the gear C to rotate, the gear C drives the gear B to rotate, the steering direction of the screw nut B is consistent with the coaxial rotating direction of the screw rod B, when the rotating speed of the screw nut B is higher than that of the screw rod B, the screw nut B moves in a reverse straight line mode, and the straight line motion of the screw nut B drives the piston of the fracturing pump to reciprocate in a straight line mode.
Preferably, the reciprocating assembly is a piston or plunger.
The invention has the following advantages: by reducing the moment of inertia in commutation, the commutation shock is smaller in the case of a constant drive speed.
Drawings
FIG. 1 is a schematic illustration of the structure of the present invention;
FIG. 2 is a schematic diagram I of the structure of the present invention;
In the figure, a 1-brake A, a 2-gear A, a 3-screw nut A, a 4-gear B, a 5-gear C, a 6-motor, a 7-screw nut B, an 8-brake B, a 9-screw A and a 10-screw 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, the device and the method for realizing the reciprocating motion of the fracturing pump through the rotation of the screw nut comprise a brake B8, a gear B4, a gear C5, a screw nut B7, a motor 6 and a screw rod B10, wherein the gear C5 is connected with the power output end of the motor 6, the gear C5 is meshed with the gear B4, the screw nut B7 is sleeved on the screw rod B10, the gear B4 is sleeved on the screw nut B7, and the brake B8 is matched with the screw nut B7.
As optional implementation mode, still include gear A2, lead screw A9, lead screw nut A3 and brake A1, gear A2 cover is on lead screw nut A3, lead screw nut A3 suit is on lead screw A9, brake A1 cooperates with lead screw nut A3, gear A2 and gear B4 meshing, lead screw A9 and lead screw B10 rotate simultaneously, and the rotation direction is opposite, and when the lead screw nut not rotatory circumstances, lead screw nut can do rectilinear motion to a direction simultaneously, and gear A2 and gear B4 guarantee that lead screw nut rotational speed is unanimous.
As an alternative embodiment, the brake A1 is coaxially installed with the screw nut A3, and the brake B8 is coaxially installed with the screw nut B7.
As an alternative embodiment, the brake A1 is mounted on a different axis from the screw nut A3, the brake B8 is mounted on a different axis from the screw nut B7, and the brake A1 and the brake B8 are respectively meshed with the gears on the screw nut A3 and the screw nut B7 through gears.
Alternatively, the reciprocating assembly is a piston or plunger.
Specific example 1:
As shown in fig. 1:
S1, closing a brake B8, wherein the screw nut B7 does not rotate, and the screw nut B7 is pushed to advance by the rotation of the screw B10;
S2, a brake B8 is loosened, the motor 6 does not operate and can be reversely driven by the gear C5, the screw rod nut B7 can rotate along with the screw rod B10, the screw rod nut B7 is decelerated in the linear direction, and when the rotating speed of the screw rod nut B7 is the same as that of the screw rod B10, the screw rod nut B7 does not move in the linear direction;
S3, the brake B8 is loosened, the motor 6 drives the gear C5 to rotate, the gear C drives the gear B to rotate, the steering direction of the screw nut B7 is consistent with the coaxial rotating direction of the screw rod B10, when the rotating speed of the screw nut B7 is higher than that of the screw rod B10, the screw nut B7 moves in a reverse straight line mode, and the straight line motion of the screw nut B7 drives the piston of the fracturing pump to reciprocate in a straight line mode.
As an alternative embodiment, during the process of opening and closing the brake A1 and the brake B8, the brake is opened during the forward movement and closed during the reverse movement.
Specific example 2:
As shown in fig. 2:
s1, a brake A1 and a brake B8 are closed, a screw nut A3 and a screw nut B7 do not rotate, and the screw nut A3 and the screw nut B7 are pushed to advance by the rotation of the screw A9 and the screw B7;
S2, the brake A1 and the brake B8 are loosened, if the motor 6 does not operate and can be reversely driven by the gear C5, the screw nut can rotate along with the screw rod under ideal conditions until the rotating speed is the same as that of the screw rod, so that the screw nut is decelerated in the linear direction, and when the rotating speed of the screw nut is the same as that of the screw rod, the screw nut does not move in the linear direction;
S3, the brake A1 and the brake B8 are loosened, the motor 6 drives the gear C5 to rotate, the gear A2 and the gear B4 are further driven to rotate, meanwhile, the rotation direction of the screw nut is guaranteed to be consistent with the coaxial screw rotation direction, and when the rotation speed of the screw nut is higher than that of the screw, the screw nut moves in a reverse direction in a linear mode, and the linear motion of the screw nut drives the piston of the fracturing pump to reciprocate in a linear mode.
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 (7)
1. The utility model provides a device through rotatory realization fracturing pump reciprocating motion of lead screw nut which characterized in that: including brake B (8), gear B (4), gear C (5), lead screw nut B (7), motor (6) and lead screw B (10), gear C (5) are connected with the power take off end of motor (6), gear C (5) and gear B (4) meshing, lead screw nut B (7) suit is on lead screw B (10), gear B (4) cover is on lead screw nut B (7), brake B (8) and lead screw nut B (7) cooperation.
2.A device for effecting reciprocating movement of a fracturing pump by rotation of a lead screw nut as recited in claim 1, wherein: still include gear A, lead screw nut A and brake A, gear A (2) cover is on lead screw nut A (3), lead screw nut A (3) suit is on lead screw A (9), brake A (1) cooperates with lead screw nut A (3), gear A (2) and gear B (4) meshing.
3. A device for effecting reciprocating movement of a fracturing pump by rotation of a lead screw nut as recited in claim 2, wherein: the brake A (1) and the screw nut A (3) are coaxially arranged, and the brake B (8) and the screw nut B (7) are coaxially arranged.
4. A device for effecting reciprocating movement of a fracturing pump by rotation of a lead screw nut as recited in claim 2, wherein: the brake A (1) and the screw nut A (3) are arranged in a different shaft, the brake B (8) and the screw nut B (7) are arranged in a different shaft, and the brake A (1) and the brake B (8) are respectively meshed with gears on the screw nut A (3) and the screw nut B (7) through gears.
5. A device for effecting reciprocating movement of a fracturing pump by rotation of a lead screw nut as recited in claim 2, wherein: the number of the gears A (2) and the gears B (4) is a plurality.
6. A method for realizing reciprocating motion of a fracturing pump through screw nut rotation, which is realized based on the device for realizing reciprocating motion of the fracturing pump through screw nut rotation according to claims 1-5, and is characterized in that: the method comprises the following steps:
S1, closing a brake B (8), wherein a screw nut B (7) does not rotate, and the screw nut B (7) is pushed to advance by the rotation of a screw B (10);
S2, a brake B (8) is loosened, a motor (6) does not operate and can be reversely driven by a gear C (5), a screw nut B (7) can rotate along with a screw B (10), the screw nut B (7) is enabled to be decelerated in the linear direction, and when the rotating speed of the screw nut B (7) is the same as that of the screw B (10), the screw nut B (7) does not move in the linear direction;
S3, a brake B (8) is loosened, a motor (6) drives a gear C (5) to rotate, the gear C drives the gear B to rotate, a screw nut B (7) turns to be consistent with the coaxial screw B (10) in the rotating direction, when the rotating speed of the screw nut B (7) is higher than that of the screw B (10), the screw nut B (7) moves in a reverse direction in a linear mode, and the linear motion of the screw nut B (7) drives a reciprocating motion assembly of the fracturing pump to reciprocate in a linear mode.
7. A method of effecting reciprocating movement of a fracturing pump by rotation of a lead screw nut as recited in claim 6, wherein: the reciprocating motion component is a piston or a plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279169.7A CN112503153B (en) | 2020-11-16 | 2020-11-16 | Device and method for realizing reciprocating motion of fracturing pump through rotation of lead screw nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279169.7A CN112503153B (en) | 2020-11-16 | 2020-11-16 | Device and method for realizing reciprocating motion of fracturing pump through rotation of lead screw nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112503153A CN112503153A (en) | 2021-03-16 |
| CN112503153B true CN112503153B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011279169.7A Active CN112503153B (en) | 2020-11-16 | 2020-11-16 | Device and method for realizing reciprocating motion of fracturing pump through rotation of lead screw nut |
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| Country | Link |
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| CN (1) | CN112503153B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1557964A (en) * | 1976-05-28 | 1979-12-19 | Cotton Ltd W | Flat bed or straight bar knitting machines having lead screw control |
| CN1061267A (en) * | 1991-11-22 | 1992-05-20 | 浙江大学 | Positive and negative rotation hold concurrently reciprocating device and stirrer |
| CN102518770A (en) * | 2011-09-16 | 2012-06-27 | 田雷 | Variable-radius continuously variable transmission |
| CN110645274A (en) * | 2019-09-29 | 2020-01-03 | 天津津航计算技术研究所 | Gear-driven gapless high-rigidity linear actuator |
| CN214999210U (en) * | 2020-11-16 | 2021-12-03 | 四川宏华电气有限责任公司 | Device for realizing reciprocating motion of fracturing pump through rotation of screw rod nut |
-
2020
- 2020-11-16 CN CN202011279169.7A patent/CN112503153B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1557964A (en) * | 1976-05-28 | 1979-12-19 | Cotton Ltd W | Flat bed or straight bar knitting machines having lead screw control |
| CN1061267A (en) * | 1991-11-22 | 1992-05-20 | 浙江大学 | Positive and negative rotation hold concurrently reciprocating device and stirrer |
| CN102518770A (en) * | 2011-09-16 | 2012-06-27 | 田雷 | Variable-radius continuously variable transmission |
| CN110645274A (en) * | 2019-09-29 | 2020-01-03 | 天津津航计算技术研究所 | Gear-driven gapless high-rigidity linear actuator |
| CN214999210U (en) * | 2020-11-16 | 2021-12-03 | 四川宏华电气有限责任公司 | Device for realizing reciprocating motion of fracturing pump through rotation of screw rod nut |
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| Publication number | Publication date |
|---|---|
| CN112503153A (en) | 2021-03-16 |
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