CN211852144U - Submersible single-screw pump and hollow rotor for submersible single-screw pump - Google Patents
Submersible single-screw pump and hollow rotor for submersible single-screw pump Download PDFInfo
- Publication number
- CN211852144U CN211852144U CN201922330378.9U CN201922330378U CN211852144U CN 211852144 U CN211852144 U CN 211852144U CN 201922330378 U CN201922330378 U CN 201922330378U CN 211852144 U CN211852144 U CN 211852144U
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- Prior art keywords
- hollow
- rotor
- screw pump
- single screw
- hollow spiral
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a dive single screw pump is with hollow rotor, including the rotor connector and be located the hollow spiral pipe of rotor connector tip, the inside of this hollow spiral pipe is equipped with the well casement that runs through its length, and rotor connector and hollow spiral pipe one side fixed connection are sealed with well casement one side of its tip. The utility model discloses still disclose a dive single screw pump. The utility model provides a hollow rotor for single screw pump dives, the vibrations that reducible dive single screw pump produced in the course of the work have improved pump efficiency.
Description
Technical Field
The utility model relates to a screw pump technical field especially relates to a dive single-screw pump and hollow rotor thereof.
Background
The single-screw pump is a displacement pump, a moving sealing cavity is formed by eccentric rotary motion of a metal rotor in a rubber cavity of a stator to push out liquid, and the eccentric motion of the rotor can impact the stator to form vibration in work. The submersible single-screw pump mainly comprises a submersible motor, a connecting shaft and a single-screw pump. The submersible motor is connected with the rotor of the single-screw pump through a connecting shaft to transmit power and drive the rotor to rotate.
The rated rotating speed of the submersible single screw pump is higher in operation, and the highest rated rotating speed can reach more than 3000 revolutions per minute. The submersible single screw pump using the solid rotor can generate large vibration in the starting acceleration stage and the stable working stage, so that the service life of a bearing of the submersible motor can be shortened, and the fault rate of the whole pump is increased. In the submersible screw pump driven by partial new energy sources such as solar energy and wind energy, as the solid rotor has large mass, more energy is needed in starting and working, the requirement of the submersible single screw pump on the use environment is improved, and the efficiency of the submersible pump is reduced.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a submersible single-screw pump and a hollow rotor thereof, which can reduce the vibration of the submersible single-screw pump during the operation.
In order to achieve the above object, the utility model provides a hollow rotor for dive single screw pump, including the rotor connector and be located the hollow spiral pipe of rotor connector tip, the inside of this hollow spiral pipe is equipped with the well hollow bore that runs through its length, and rotor connector and hollow spiral pipe one side fixed connection are sealed with well hollow bore one side of its tip.
Preferably, the rotor connector is of a cylindrical structure, a threaded blind hole is formed in the end portion, deviating from the hollow spiral tube, of the rotor connector, and the axis of the threaded blind hole is coaxial with the axis of the rotor connector.
Preferably, a sealing cover is further fixed on one side, away from the rotor connector, of the hollow spiral pipe, and the sealing cover seals the end face of the hollow hole of the hollow spiral pipe.
Preferably, the sealing cover is of a circular sheet structure, and the diameter of the sealing cover is between the diameter D of the inner cavity of the section of the hollow spiral pipe and the diameter D of the outer diameter of the section of the hollow spiral pipe.
Preferably, the sealing cover and the rotor connector are both fixedly connected with the hollow spiral pipe through welding.
Preferably, the thickness of the sealing cover is 0.3-4 mm.
Preferably, the hollow spiral pipe is made of a hollow metal pipe, and the wall thickness of each position in the length direction of the hollow spiral pipe is equal.
Preferably, the wall thickness of the hollow spiral pipe is 1 mm-8 mm.
Preferably, a connecting column is arranged on the end part, on one side, deviating from the hollow spiral tube, of the rotor connector in a protruding mode, and external threads are arranged on the connecting column.
The utility model discloses further provide a dive single screw pump, including foretell dive single screw pump hollow rotor for pump.
The utility model provides a hollow rotor for single screw pump dives adopts hollow spiral pipe can reduce the weight of rotor to reduce the vibrations of dive screw pump, and then improved pump efficiency. In addition, the pump is relatively easy to start, thereby reducing the requirements of the pump on the use environment. The hollow rotor for the submersible single screw pump also has the advantages of simple structure, reliable work and easy realization.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of a hollow rotor for a submersible single screw pump according to the present invention;
FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;
fig. 3 is a schematic structural diagram of a second embodiment of the hollow rotor for the submersible single screw pump according to the present invention.
In the figure, 1-rotor connector, 2-hollow spiral tube and 3-sealing cover.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, the present invention provides a first embodiment of a hollow rotor for a submersible single screw pump. In this embodiment, dive single screw pump is with hollow rotor includes rotor connector 1 and is located the hollow spiral pipe 2 of 1 tip of rotor connector, and the inside of this hollow spiral pipe 2 is equipped with the cavity hole that runs through its length, and rotor connector 1 seals with cavity hole one side (the left side is sealed shown in figure 1) of its tip with hollow spiral pipe 2 one side fixed connection. The rotor connector is connected with the connecting shaft.
Further, a sealing cover 3 is fixed on one side, away from the rotor connector 1, of the hollow spiral pipe 2, and the sealing cover 3 seals the end face (the right end of the hollow hole of the hollow spiral pipe 2 in fig. 1) of the hollow spiral pipe 2. No liquid enters the sealed rotor cavity, so that the vibration generated in the motion of the rotor is further reduced. 1
Specifically, referring to fig. 1 and 2 in combination, the cover 3 is a circular sheet structure, and the diameter of the cover 3 is between the diameter D of the inner cavity of the hollow spiral tube 2 and the diameter D of the outer hollow spiral tube 2.
The sealing cover 3 and the rotor connector 1 are fixedly connected with the hollow spiral tube 2 through welding. The welding fixing mode has the advantages of simple operation and good connection sealing performance.
The thickness of the sealing cover 3 is 0.3-4 mm. The hollow spiral tube 2 is made of a hollow metal tube by adopting a special process, and the wall thickness of each position in the length direction of the hollow spiral tube 2 is equal. The wall thickness of the hollow spiral tube 2 is 1-8 mm.
The diameter of the rotor connector 1 is less than or equal to the outer diameter D of the section of the hollow spiral tube 2.
The hollow rotor for the submersible single screw pump provided by the embodiment adopts the hollow spiral tube 2, so that the weight of the rotor can be reduced, the vibration of the submersible screw pump is reduced, and the pump efficiency is improved. In addition, the pump is relatively easy to start, thereby reducing the requirements of the pump on the use environment. The hollow rotor for the submersible single screw pump also has the advantages of simple structure, reliable work and easy realization.
Referring to fig. 3, the utility model provides a dive single screw pump is with hollow rotor's second embodiment. The difference between this embodiment and the first embodiment is that, in this embodiment, a connection column is convexly arranged at one side end of the rotor connector 1 departing from the hollow spiral tube 2, and an external thread is arranged on the connection column. The connecting column is connected with the connecting shaft through threads. Namely, the connection structure of the rotor connector 1 and the connection shaft is different from the first embodiment.
The utility model discloses a dive single-screw pump is further provided.
In this embodiment, a dive single screw pump, includes a dive single screw pump hollow rotor, and this dive single screw pump hollow rotor's concrete structure and beneficial effect refer to above-mentioned embodiment, no longer describe herein.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a hollow rotor for dive single screw pump which characterized in that, includes the rotor connector and is located the hollow spiral pipe of rotor connector tip, and the inside of this hollow spiral pipe is equipped with the cavity hole that runs through its length, and rotor connector and hollow spiral pipe one side fixed connection are sealed with cavity hole one side of its tip.
2. The hollow rotor for the submersible single screw pump according to claim 1, wherein the rotor connector is of a cylindrical structure, a threaded blind hole is formed in the end of the rotor connector, which is away from the hollow spiral tube, and the axis of the threaded blind hole is coaxial with the axis of the rotor connector.
3. The hollow rotor for a submersible single screw pump according to claim 1, wherein a sealing cover is further fixed to a side of the hollow spiral tube facing away from the rotor connector, and the sealing cover seals an end face of a hollow hole of the hollow spiral tube.
4. The hollow rotor for a submersible single screw pump according to claim 3, wherein the cover is a circular sheet-like structure having a diameter between the diameter D of the hollow spiral tube cross-sectional inner cavity and the diameter D of the hollow spiral tube cross-sectional outer diameter.
5. The hollow rotor for a submersible single screw pump according to claim 4, wherein the cap and the rotor connector are fixedly connected to the hollow spiral tube by welding.
6. The hollow rotor for a submersible single screw pump according to claim 3, wherein the cover has a thickness of 0.3 to 4 mm.
7. The hollow rotor for a submersible single screw pump according to claim 1, wherein the hollow spiral tube is formed by processing a hollow metal tube, and the wall thickness of the hollow spiral tube is equal at each position in the length direction.
8. The hollow rotor for a submersible single screw pump according to claim 7, wherein the wall thickness of the hollow spiral tube is 1mm to 8 mm.
9. The hollow rotor for a submersible single screw pump according to claim 1, wherein a connecting column is provided on the end of one side of the rotor connector facing away from the hollow spiral tube, and an external thread is provided on the connecting column.
10. A submersible single screw pump comprising a hollow rotor for a submersible single screw pump according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922330378.9U CN211852144U (en) | 2019-12-23 | 2019-12-23 | Submersible single-screw pump and hollow rotor for submersible single-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922330378.9U CN211852144U (en) | 2019-12-23 | 2019-12-23 | Submersible single-screw pump and hollow rotor for submersible single-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211852144U true CN211852144U (en) | 2020-11-03 |
Family
ID=73217130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922330378.9U Expired - Fee Related CN211852144U (en) | 2019-12-23 | 2019-12-23 | Submersible single-screw pump and hollow rotor for submersible single-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211852144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483385A (en) * | 2020-12-09 | 2021-03-12 | 耐驰（兰州）泵业有限公司 | Welded thin-wall hollow rotor for screw pump and machining method and application |
-
2019
- 2019-12-23 CN CN201922330378.9U patent/CN211852144U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483385A (en) * | 2020-12-09 | 2021-03-12 | 耐驰（兰州）泵业有限公司 | Welded thin-wall hollow rotor for screw pump and machining method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |
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| CF01 | Termination of patent right due to non-payment of annual fee |