CN214999210U - Device for realizing reciprocating motion of fracturing pump through rotation of screw rod nut - Google Patents
Device for realizing reciprocating motion of fracturing pump through rotation of screw rod nut Download PDFInfo
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- CN214999210U CN214999210U CN202022643697.8U CN202022643697U CN214999210U CN 214999210 U CN214999210 U CN 214999210U CN 202022643697 U CN202022643697 U CN 202022643697U CN 214999210 U CN214999210 U CN 214999210U
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Abstract
The utility model discloses a device through rotatory fracturing pump reciprocating motion that realizes of screw-nut, its device is including brake B, gear C, screw-nut B, motor and lead screw B, gear C is connected with the power take off end of motor, gear C and gear B meshing, screw-nut B suit is on screw-nut B, gear B cover is on screw-nut B, brake B and screw-nut B cooperation, the device realizes fracturing pump reciprocating motion through the rotatory method that realizes fracturing pump reciprocating motion of screw-nut. The utility model has the advantages that: by reducing the moment of inertia in commutation, the commutation impact is smaller in the case of driving a constant rotational speed.
Description
Technical Field
The utility model relates to the field of mechanical equipment, especially a device through the rotatory fracturing pump reciprocating motion that realizes of screw-nut.
Background
The fracturing pump is a machine for conveying fluid or pressurizing fluid, which transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, in the petroleum drilling and production equipment, the fracturing pump belongs to a more important class of equipment, most of the fracturing pumps used in current oil fields are single-acting reciprocating fracturing pumps, the power transmission mode of the fracturing pump in this form is as follows: the motor is driven by a chain or a belt to transmit power to the transmission shaft, then a gear of the transmission shaft is meshed with a large gear ring on the crankshaft to drive the crankshaft to rotate, the power loss is large, the structure is slightly complex, and equal phase angle difference exists among cranks, so that large vibration exists in the running process of the fracturing pump.
The following two common ways of reciprocating a common ball screw are available:
1. the positive and negative raceways are formed on the screw rod, and the positive and negative rotation of the screw rod or the screw nut is further controlled, so that the reciprocating motion of the ball screw is achieved, and the defect of the mode is that: due to the existence of the positive and negative raceways, the thrust is reduced, and simultaneously if the lead screw or the nut is required to always keep constant-speed rotation, the two ends of the raceway can bear very large impact, so that the service life of the ball screw is greatly reduced.
2. The positive and negative rotation of the driving motor is directly controlled, the motor directly drives the screw rod (or the screw rod nut) through a rotation transmission device, and therefore the purpose of reciprocating motion of the ball screw is achieved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a rotatory device that realizes fracturing pump reciprocating motion through screw-nut.
The purpose of the utility model is realized through the following technical scheme: the utility model provides a device through rotatory fracturing pump reciprocating motion that realizes of screw-nut, includes brake B, gear C, screw-nut B, motor and lead screw B, gear C is connected with the power take off end of motor, gear C and gear B meshing, screw-nut B suit is on screw-nut B, gear B cover is on screw-nut B, brake B and the cooperation of screw-nut B.
Preferably, still include gear A, lead screw A, screw-nut A and brake A, gear A cover is on screw-nut A, screw-nut A suit is on screw-nut A, brake A and screw-nut A cooperation, gear A and gear B meshing, screw-nut A and screw-nut B rotate simultaneously, and direction of rotation is opposite, and under the irrotational condition of screw-nut, screw-nut can be simultaneously to a direction linear motion, and gear A and gear B guarantee that screw-nut rotational speed is unanimous.
Preferably, the brake A and the screw nut A are coaxially mounted, and the brake B and the screw nut B are coaxially mounted.
Preferably, the brake A and the screw nut A are mounted in a different shaft mode, the brake B and the screw nut B are mounted in a different shaft mode, and the brake A and the brake B are respectively meshed with gears on the screw nut A and the screw nut B through gears.
The method for using the device comprises the following steps:
s, closing a brake B, not rotating a screw rod nut B, and pushing the screw rod B to advance by the rotation of the screw rod B;
s, the brake B is loosened, the motor does not operate and can be driven reversely by the gear C, the lead screw nut B can rotate along with the lead screw B, so that the linear direction of the lead screw nut B is decelerated, and when the rotating speed of the lead screw nut B is the same as that of the lead screw B, the lead screw nut B does not move in the linear direction;
and S, the brake B is loosened, the motor drives the gear C to rotate, the gear C drives the gear B to rotate, the rotation direction of the screw rod nut B is consistent with the rotation direction of the coaxial screw rod B, when the rotation speed of the screw rod nut B is higher than that of the screw rod B, the screw rod nut B moves linearly in the reverse direction, and the linear motion of the screw rod nut B drives the piston of the fracturing pump to move linearly in a reciprocating mode.
Preferably, the reciprocating component is a piston or plunger.
The utility model has the advantages of it is following: by reducing the moment of inertia in commutation, the commutation impact is smaller in the case of driving a constant rotational speed.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic diagram I of the structure of the present invention;
in the figure, 1-brake A, 2-gear A, 3-screw nut A, 4-gear B, 5-gear C, 6-motor, 7-screw nut B, 8-brake B, 9-screw A, 10-screw B.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended advantageous objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" may not necessarily refer to the same embodiment, and furthermore, particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments:
as shown in fig. 1, the device for realizing reciprocating motion of the fracturing pump through rotation of the lead screw nut comprises a brake B8, a gear B4, a gear C5, a lead screw nut B7, a motor 6 and a lead screw B10, wherein the gear C5 is connected with a power output end of the motor 6, the gear C5 is meshed with the gear B4, the lead screw nut B7 is sleeved on a lead screw B10, the gear B4 is sleeved on a lead screw nut B7, and the brake B8 is matched with the lead screw nut B7.
As an optional implementation mode, the brake device further comprises a gear A2, a lead screw A9, a lead screw nut A3 and a brake A1, wherein the gear A2 is sleeved on the lead screw nut A3, the lead screw nut A3 is sleeved on the lead screw A9, the brake A1 is matched with the lead screw nut A3, the gear A2 is meshed with the gear B4, the lead screw A9 and the lead screw B10 rotate simultaneously, the rotation directions are opposite, when the lead screw nut does not rotate, the lead screw nut can do linear motion to one direction at the same time, and the gear A2 and the gear B4 guarantee that the rotation speeds of the lead screw nut are consistent.
In an alternative embodiment, the brake A1 is coaxially mounted with the lead screw nut A3, and the brake B8 is coaxially mounted with the lead screw nut B7.
In an alternative embodiment, the brake a1 is not mounted coaxially with the lead screw nut A3, the brake B8 is mounted coaxially with the lead screw nut B7, and the brake a1 and the brake B8 are respectively engaged with gears on the lead screw nut A3 and the lead screw nut B7 through gears.
In an alternative embodiment, the reciprocating element is a piston or plunger.
Specific example 1:
as shown in fig. 1:
s1, a brake B8 is closed, the lead screw nut B7 does not rotate, and the lead screw B10 is pushed to advance by rotation of the lead screw B10;
s2 and a brake B8 are loosened, the motor 6 does not operate and can be driven reversely by a gear C5, the lead screw nut B7 can rotate along with the lead screw B10 to enable the lead screw nut B7 to decelerate in the linear direction, and when the rotating speed of the lead screw nut B7 is the same as that of the lead screw B10, the lead screw nut B7 does not move in the linear direction;
s3 and a brake B8 are loosened, the motor 6 drives the gear C5 to rotate, the gear C drives the gear B to rotate, the rotation direction of the lead screw nut B7 is consistent with the rotation direction of the coaxial lead screw B10, when the rotating speed of the lead screw nut B7 is higher than that of the lead screw B10, the lead screw nut B7 moves linearly in the reverse direction, and the linear motion of the lead screw nut B7 drives the piston of the fracturing pump to move linearly in a reciprocating mode.
As an alternative embodiment, during the opening and closing of brake A1 and brake B8, the brakes are opened when moving in a forward direction and closed when moving in a reverse direction.
Specific example 2:
as shown in fig. 2:
s1, a brake A1 and a brake B8 are closed, the lead screw nut A3 and the lead screw nut B7 do not rotate, and the lead screw is pushed to advance by the rotation of the lead screw A9 and the lead screw B7;
s2, a brake A1 and a brake B8 are loosened, if the motor 6 does not operate and can be driven reversely by the gear C5, under ideal conditions, the lead screw nut can rotate along with the lead screw until the rotating speed is the same as that of the lead screw, so that the linear direction of the lead screw nut is decelerated, and when the rotating speed of the lead screw nut is the same as that of the lead screw, the lead screw nut does not move in the linear direction;
s3, a brake A1 and a brake B8 are loosened, the motor 6 drives the gear C5 to rotate, then drives the gear A2 and the gear B4 to rotate, the rotation direction of the screw rod nut is consistent with the rotation direction of a coaxial screw rod, when the rotation speed of the screw rod nut is higher than that of the screw rod, the screw rod nut moves in a reverse linear mode, and the linear motion of the screw rod nut drives a piston of the fracturing pump to move in a linear reciprocating mode.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, as long as they are protected by patent laws within the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a device that realizes fracturing pump reciprocating motion through screw-nut is rotatory which characterized in that: including brake B (8), gear B (4), gear C (5), screw-nut B (7), motor (6) and lead screw B (10), gear C (5) are connected with the power take off of motor (6), gear C (5) and gear B (4) meshing, screw-nut B (7) suit is on lead screw B (10), gear B (4) cover is on screw-nut B (7), brake B (8) and screw-nut B (7) cooperation.
2. The device for realizing the reciprocating motion of the fracturing pump through the rotation of the feed screw nut as claimed in claim 1, wherein: still include gear A, lead screw A, screw-nut A and brake A, gear A (2) cover is on screw-nut A (3), screw-nut A (3) suit is on lead screw A (9), brake A (1) and screw-nut A (3) cooperation, gear A (2) and gear B (4) meshing.
3. The device for realizing the reciprocating motion of the fracturing pump through the rotation of the feed screw nut as claimed 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. The device for realizing the reciprocating motion of the fracturing pump through the rotation of the feed screw nut as claimed in claim 2, wherein: brake A (1) and lead screw nut A (3) different shaft installation, brake B (8) and lead screw nut B (7) different shaft installation, brake A (1) and brake B (8) respectively through the gear respectively with the lead screw nut A (3) with lead screw nut B (7) on the gear mesh mutually.
5. The device for realizing the reciprocating motion of the fracturing pump through the rotation of the feed screw nut as claimed in claim 2, wherein: the number of the gears A (2) and the gears B (4) can be multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022643697.8U CN214999210U (en) | 2020-11-16 | 2020-11-16 | Device for realizing reciprocating motion of fracturing pump through rotation of screw rod nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022643697.8U CN214999210U (en) | 2020-11-16 | 2020-11-16 | Device for realizing reciprocating motion of fracturing pump through rotation of screw rod nut |
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| CN214999210U true CN214999210U (en) | 2021-12-03 |
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| CN202022643697.8U Active CN214999210U (en) | 2020-11-16 | 2020-11-16 | Device for realizing reciprocating motion of fracturing pump through rotation of screw rod nut |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503153A (en) * | 2020-11-16 | 2021-03-16 | 四川宏华电气有限责任公司 | Device and method for realizing reciprocating motion of fracturing pump through rotation of lead screw nut |
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2020
- 2020-11-16 CN CN202022643697.8U patent/CN214999210U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503153A (en) * | 2020-11-16 | 2021-03-16 | 四川宏华电气有限责任公司 | Device and method for realizing reciprocating motion of fracturing pump through rotation of lead screw nut |
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