CN109779554B - Screw power device for sand suction pump - Google Patents
Screw power device for sand suction pump Download PDFInfo
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- CN109779554B CN109779554B CN201910215109.XA CN201910215109A CN109779554B CN 109779554 B CN109779554 B CN 109779554B CN 201910215109 A CN201910215109 A CN 201910215109A CN 109779554 B CN109779554 B CN 109779554B
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- falling
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- assembly
- shell
- transmission shaft
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- 239000004576 sand Substances 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Vibration Prevention Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to a screw power device for a sand suction pump, which comprises an upper joint, a shell and a lower joint which are sequentially arranged, wherein an upper substitute joint is sequentially arranged in an inner cavity of the shell, and a first motor assembly, a universal shaft assembly, a shockproof transmission shaft assembly, a universal shaft assembly and a second motor assembly are sequentially arranged in the inner cavity of the shell; the upper substitute joint is fixedly connected with a rotor on the first motor assembly through an anti-falling stable assembly; the anti-falling stable assembly comprises an anti-falling joint, an anti-falling connecting rod and an anti-falling nut; the anti-falling connecting rod passes through the anti-falling connector to be connected with the rotor and is locked by an anti-falling nut; the anti-falling connector comprises a fixed positioning bolt, a shock-proof transmission shaft assembly and a shock-proof transmission shaft, wherein the fixed positioning bolt is respectively embedded into two ends of the anti-falling connector, and the shock-proof transmission shaft assembly comprises a bearing assembly shell and a transmission shaft arranged in the bearing assembly shell; needle bearings and ball bearings are sequentially arranged at two ends of the transmission shaft. The invention takes the screw drilling tool as a power source, achieves ideal effect in the process of lost circulation and sand fishing, and greatly shortens the construction period.
Description
Technical Field
The invention relates to the field of sand fishing and well workover operation, in particular to a screw power device for a sand suction pump.
Background
According to the condition that most of the stratum in the middle and later stages of the existing oil field has larger original pressure loss, and a plurality of lost returns are long in construction period by using a conventional sand fishing scheme in sand fishing and well repairing operation, the construction cost is high and the success rate is low, and the period and the efficiency of engineering are affected.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a screw power device for a sand suction pump, which takes a screw drilling tool as a power source, achieves ideal effect in the process of lost circulation well sand fishing, compresses the construction period to 1/4 time of the conventional construction period, greatly reduces the construction cost and achieves the technical innovation purpose of new products.
In order to achieve the above purpose, the present invention provides the following technical solutions: the screw power device for the sand suction pump comprises an upper joint, a shell and a lower joint which are sequentially arranged, wherein an upper substitute joint is sequentially arranged in an inner cavity of the shell, and the screw power device comprises a first motor assembly, a universal shaft assembly, a shockproof transmission shaft assembly, a universal shaft assembly and a second motor assembly; the upper substitute joint is fixedly connected with a rotor on the first motor assembly through an anti-falling stable assembly; the anti-falling stable assembly comprises an anti-falling joint, an anti-falling connecting rod and an anti-falling nut; the anti-falling connecting rod passes through the anti-falling connector to be connected with the rotor and is locked by an anti-falling nut; the two ends of the anti-drop connector are respectively embedded into a fixed positioning bolt, and the end parts of the positioning bolts are fixedly connected with the lining; the lining is arranged on a positioning plate, and the positioning plate is positioned between the anti-falling joint and the upper substitute joint; the shockproof transmission shaft assembly comprises a bearing assembly shell and a transmission shaft arranged in the bearing assembly shell; the two ends of the transmission shaft are respectively connected and fixed with a universal shaft on the universal shaft assembly, and the two ends of the transmission shaft are respectively provided with a needle bearing and a ball bearing in sequence; wherein O-shaped rings are arranged on grooves on the outer surface of the bearing assembly shell.
Preferably, limiting plates are arranged at two ends of the anti-drop joint; one end of the spring rod is fixedly connected with the lining, and the other end of the spring rod is locked on the limiting plate, so that the upper substitute joint is fixedly connected with the anti-drop joint.
Preferably, the lower joint is fixedly connected with a lower substitute joint in the shell.
Preferably, at least four O-shaped rings are arranged on the surface of the bearing assembly shell, so that the sealing performance is improved.
Preferably, the limiting plate is made of hard alloy plates, so that the strength of the structure is improved.
Compared with the prior art, the invention provides the superfine screw drilling tool, which has the following beneficial effects:
1. the positive displacement underground power tool is provided with the first motor assembly and the second motor assembly, the power strength and the stability of a power source are effectively improved, hydraulic energy is converted into mechanical energy, a certain pressure difference is formed at an inlet of the motor, the rotor and the axis of the stator are pushed to rotate, and the rotating speed and the torque drive the screw pump through the transmission shaft, so that the up-rotation and the down-suction are formed.
2. Wherein the universal shaft assembly is connected with the rotor at the upper part and connected with the transmission shaft at the lower part. Its function is a special connector for transmitting the mechanical properties of the planetary motion of the motor to the drive shaft.
3. Shockproof transmission shaft assembly: the transmission shaft transmits the rotation power of the motor to the screw pump, the shockproof outer diameter is matched with the inner hole of the shell, and rubber is used for playing a shockproof sealing role.
4. The anti-falling connecting rod in the anti-falling stable assembly is fixedly connected with the rotor; the binding force between the upper substitute joint and the anti-drop joint is improved through the positioning bolt, so that stress generated in the rotating process is prevented; meanwhile, the limiting plate and the spring rod are arranged, so that the installation and the positioning can be conveniently realized, and meanwhile, a certain buffering force is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of a drive shaft assembly;
Fig. 3 is a partial enlarged view of a in fig. 1.
Fig. 4 is a partial enlarged view of B in fig. 3.
In the figure: 1. an upper joint; 2. a housing; 3. a lower joint; 3-1-lower surrogate linker; 4. a substitute joint is arranged; 5. a first motor assembly; 5-1, a rotor; 6. a universal shaft assembly; 6-1-, a cardan shaft; 7. a shockproof transmission shaft assembly; 7-1, a bearing assembly housing; 7-2, a transmission shaft; 7-3, needle roller bearings; 7-4, ball bearings; 8. a second motor assembly; 9. an anti-drop joint; 10. a connecting rod is prevented from falling; 11. an anti-drop nut; 12. a positioning bolt; 13. a backing; 14. a positioning plate; 15. an O-ring; 16. a limiting plate; 17. a spring rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, a screw power device for a sand sucking pump comprises an upper joint 1, a shell 2 and a lower joint 3 which are sequentially arranged, wherein an inner cavity of the shell 2 is sequentially provided with an upper substitute joint 4, a first motor assembly 5, a universal shaft assembly 6, a shockproof transmission shaft assembly 7, the universal shaft assembly 6, a second motor assembly 8 and a lower substitute joint 3-1.
The upper substitute joint 4 is fixedly connected with a rotor 5-1 on the first motor assembly 5 through an anti-falling stabilizing assembly; the anti-falling stable assembly comprises an anti-falling joint 9, an anti-falling connecting rod 10 and an anti-falling nut 11; the anti-falling connecting rod 10 passes through the anti-falling joint 9 to be connected with the rotor 5-1 and is locked by an anti-falling nut 11; wherein, the two ends of the anti-drop joint 9 are respectively embedded into a fixed positioning bolt 12, and the end parts of the positioning bolts 12 are fixedly connected with a lining 13; the spacer 13 is arranged on a positioning plate 14, and the positioning plate 14 is positioned between the drop-proof joint 9 and the upper substitute joint 4.
Limiting plates 16 are arranged at two ends of the anti-drop joint 9; one end of a spring rod 17 is fixedly connected with the cushion 13, and the other end of the spring rod is locked on the limiting plate 16; mounting and positioning are realized, and effective buffering is realized; the limiting plate 16 is made of hard alloy plates.
The anti-falling connecting rod 10 in the anti-falling stable assembly is fixedly connected with the rotor 5-1; the binding force between the upper substitute joint 4 and the anti-drop joint 9 is improved through the positioning bolt 12, so that stress generated in the rotating process is prevented; and meanwhile, the limiting plate 16 and the spring rod 17 are arranged, so that the installation and the positioning can be facilitated, and a certain buffering force can be realized.
The shockproof transmission shaft assembly comprises a bearing assembly shell 7-1 and a transmission shaft 7-2 arranged in the bearing assembly shell 7-1; the two ends of the transmission shaft 7-2 are respectively connected and fixed with a universal shaft 6-1 on the universal shaft assembly 6, wherein the two ends of the transmission shaft 7-2 are respectively provided with a needle bearing 7-3 and a ball bearing 7-4 in sequence; wherein O-rings 15 are arranged on grooves on the outer surface of the bearing assembly shell 7-1.
Meanwhile, large-particle sand prevention is required to be installed at the position of the lower joint 3 connected with the oil pipe in operation, and a sand prevention pipe is required to be installed, if the large-particle sand prevention pipe is not used, the water hole of the screw power sand fishing pump can be blocked, and the stator rubber is damaged, so that the power device cannot be used.
The first motor assembly 5 and the second motor assembly 8 are arranged, so that the power strength and the stability of a power source are effectively improved, hydraulic energy is converted into mechanical energy, a certain pressure difference is formed at an inlet of the motor, a rotor and a stator axis are pushed to rotate, and the rotating speed and the torque drive a screw pump through a transmission shaft, so that the up-rotation and down-suction are formed; wherein the universal shaft assembly is connected with the rotor at the upper part and connected with the transmission shaft at the lower part. The special connecting piece is used for transmitting the mechanical property of the planetary motion of the motor to the transmission shaft; the shockproof transmission shaft assembly is matched, and the transmission shaft transmits the rotation power of the motor to the screw pump.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A screw power device for a sand suction pump, characterized by: the anti-vibration device comprises an upper joint (1), a shell (2) and a lower joint (3) which are sequentially arranged, wherein an upper substitute joint (4) is sequentially arranged in an inner cavity of the shell (2), and a first motor assembly (5), a universal shaft assembly (6), a vibration-proof transmission shaft assembly (7), the universal shaft assembly (6) and a second motor assembly (8) are sequentially arranged in the inner cavity of the shell; the upper substitute joint (4) is fixedly connected with a rotor (5-1) on the first motor assembly (5) through an anti-falling stable assembly; the anti-falling stable assembly comprises an anti-falling joint (9), an anti-falling connecting rod (10) and an anti-falling nut (11); the anti-falling connecting rod (10) passes through the anti-falling joint (9) to be connected with the rotor (5-1) and is locked by an anti-falling nut (11); wherein, the two ends of the anti-drop joint (9) are respectively embedded into a fixed positioning bolt (12), and the end parts of the positioning bolts (12) are fixedly connected with a gasket (13); the lining (13) is arranged on a positioning plate (14), and the positioning plate (14) is positioned between the anti-falling joint (9) and the upper substitute joint (4); the shockproof transmission shaft assembly comprises a bearing assembly shell (7-1) and a transmission shaft (7-2) arranged in the bearing assembly shell (7-1); two ends of the transmission shaft (7-2) are respectively connected and fixed with a universal shaft (6-1) on the universal shaft assembly (6), wherein needle bearings (7-3) and ball bearings (7-4) are sequentially arranged at two ends of the transmission shaft (7-2); wherein O-shaped rings (15) are arranged on grooves on the outer surface of the bearing assembly shell (7-1); limiting plates (16) are arranged at two ends of the anti-drop joint (9); one end of a spring rod (17) is fixedly connected with the cushion (13) and the other end is locked on the limiting plate (16); the lower joint (3) is fixedly connected with the lower substitute joint (3-1) in the shell (2); at least four O-shaped rings (15) are arranged on the surface of the bearing assembly shell (7-1).
2. A screw power unit for a sand pump as claimed in claim 1, wherein: the limiting plate (16) is made of hard alloy plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215109.XA CN109779554B (en) | 2019-03-21 | 2019-03-21 | Screw power device for sand suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215109.XA CN109779554B (en) | 2019-03-21 | 2019-03-21 | Screw power device for sand suction pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109779554A CN109779554A (en) | 2019-05-21 |
| CN109779554B true CN109779554B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910215109.XA Active CN109779554B (en) | 2019-03-21 | 2019-03-21 | Screw power device for sand suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109779554B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117418775B (en) * | 2023-12-18 | 2024-03-01 | 盐城市新永佳石油机械制造有限公司 | Mining ultra-short large-torque screw drilling tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4669555A (en) * | 1986-04-28 | 1987-06-02 | Conoco Inc. | Downhole circulation pump |
| CN101487385A (en) * | 2009-02-21 | 2009-07-22 | 西南石油大学 | Downhole tool for reducing equivalent circulation density |
| CN108086922A (en) * | 2017-12-30 | 2018-05-29 | 贵州高峰石油机械股份有限公司 | A kind of method for improving helicoid hydraulic motor performance and super helicoid hydraulic motor |
| CN210217674U (en) * | 2019-03-21 | 2020-03-31 | 盐城市荣嘉机械制造有限公司 | Screw power device for sand suction pump |
-
2019
- 2019-03-21 CN CN201910215109.XA patent/CN109779554B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4669555A (en) * | 1986-04-28 | 1987-06-02 | Conoco Inc. | Downhole circulation pump |
| CN101487385A (en) * | 2009-02-21 | 2009-07-22 | 西南石油大学 | Downhole tool for reducing equivalent circulation density |
| CN108086922A (en) * | 2017-12-30 | 2018-05-29 | 贵州高峰石油机械股份有限公司 | A kind of method for improving helicoid hydraulic motor performance and super helicoid hydraulic motor |
| CN210217674U (en) * | 2019-03-21 | 2020-03-31 | 盐城市荣嘉机械制造有限公司 | Screw power device for sand suction pump |
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|---|---|
| CN109779554A (en) | 2019-05-21 |
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