CN218563993U - Impeller mechanism for pump capable of preventing loosening - Google Patents
Impeller mechanism for pump capable of preventing loosening Download PDFInfo
- Publication number
- CN218563993U CN218563993U CN202222663304.9U CN202222663304U CN218563993U CN 218563993 U CN218563993 U CN 218563993U CN 202222663304 U CN202222663304 U CN 202222663304U CN 218563993 U CN218563993 U CN 218563993U
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- impeller
- nut
- main shaft
- pump
- base
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- 238000007789 sealing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model discloses a can prevent not hard up impeller mechanism for pump, including main shaft (1), its characterized in that: the impeller (2) has been cup jointed outward in main shaft (1), just be provided with parallel key (3) on main shaft (1), parallel key (3) are located and set up keyway (4) on impeller (2) inner wall, threaded connection between the tip of main shaft (1) and impeller nut (5), then be provided with connection pad (6) between impeller nut (5) and impeller (2), connection pad (6) include a circular annular base (7), be provided with thin wall drum (8) on base (7), the root of impeller nut (5) is the hexagon, and thin wall drum (8) are the circumscribed circle of hexagon root on impeller nut (5), the pinhole has been seted up to one side that impeller nut (5) were kept away from in base (7), has worn to connect in the pinhole connecting pin (9), a part of connecting pin (9) is located keyway (4).
Description
Technical Field
The utility model relates to a production, the design field of pump, especially a can prevent not hard up impeller mechanism for pump.
Background
The pumps are widely used and classified according to their operating principles into positive displacement pumps and vane pumps. The positive displacement pump comprises a gear pump, a plunger pump, a screw pump, a sliding vane pump and the like, the vane pump comprises a centrifugal pump, a mixed flow pump, an axial flow pump, a partial flow pump, a vortex pump and the like, and the number of the vane pumps in the positive displacement pump and the vane pump can be 70 to 80 percent of the total displacement pump and the vane pump.
The vane pump is divided into two types according to the bearing support mode: cantilever type and both ends support formula, and cantilever type impeller pump use amount is many, and the fixed mode of its impeller of cantilever type impeller pump is as follows basically: the impeller is connected with the shaft into a whole through a flat key, and the impeller nut is screwed on the shaft through threads, so that the shaft, the impeller and the impeller nut are combined into a whole. Due to the vane typeOf pumpsThe pump impeller rotates according to a certain direction, so that the spiral direction of the impeller nut is opposite to the rotation direction of the impeller, and the design can lead the impeller nut to rotate more and more tightly when the impeller nut rotates, thereby achieving the purpose of preventing the impeller from loosening.
However, in some vane pumps, in some special cases, the rotation direction of the impeller may be opposite to the design direction, and the nut for fixing the impeller is easy to loosen, so that once the nut becomes loose, the impeller rotating at high speed may interfere with the pump body, and once the nut becomes loose, the pump must be stopped and repaired immediately, thereby affecting production. Particularly, in some important enterprises, such as power plants, petrochemical plants and other fields, the pump needs to work continuously for 24 hours every day, the maintenance time of the pump is relatively long, and once unplanned shutdown occurs, the whole system cannot produce, so that the normal production of the enterprises is seriously influenced.
There is therefore a need for a method or apparatus that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit, rationally distributed, can be at any kind revolve down can both guarantee that the impeller can not become flexible for the pump impeller mechanism.
The technical solution of the utility model is that: the utility model provides a can prevent not hard up impeller mechanism for pump, includes main shaft 1, its characterized in that: the utility model discloses a novel impeller structure, including main shaft 1, flat key 3, connection pad 6, connecting pad 7, pivot pin 9, connecting pin 9, impeller 2, impeller nut 5, connecting pin 9, the main shaft 1 has cup jointed impeller 2 outward, just be provided with flat key 3 on the main shaft 1, flat key 3 is located sets up in keyway 4 on impeller 2 inner wall, threaded connection between the tip of main shaft 1 and impeller nut 5 then is provided with connecting pad 6 between impeller nut 5 and impeller 2, connecting pad 6 includes the annular base 7 of a circle, be provided with thin wall drum 8 on the base 7, the root of impeller nut 5 is the hexagon, and the internal diameter of thin wall drum 8 is greater than the circumscribed circle of hexagonal root on impeller nut 5, the pinhole has been seted up to one side that impeller nut 5 was kept away from to base 7, has worn to have connect in the pinhole 9, a part of connecting pin 9 is located keyway 4.
A sealing ring 10 is arranged between the base 7 and the impeller 2.
And a sealing ring 10 is arranged between the base 7 and the impeller nut 5.
Compared with the prior art, the utility model, have following advantage:
the impeller mechanism for the pump is simple in structure, ingenious in design and reasonable in layout, and aims to solve the problems existing in the use process of the traditional impeller for the pump. And the impeller mechanism has simple manufacturing process and low manufacturing cost, so the impeller mechanism has multiple advantages, is particularly suitable for popularization and application in the field, and has very wide market prospect.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of a thin-walled cylindrical portion (before knocking deformation) in an embodiment of the present invention.
Fig. 3 is a schematic structural view of a thin-walled cylindrical portion (after being deformed by knocking) in an embodiment of the present invention.
Detailed Description
The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1 to 3: the utility model provides a can prevent not hard up impeller mechanism for pump, includes main shaft 1, has cup jointed impeller 2 outside main shaft 1, just be provided with parallel key 3 on main shaft 1, parallel key 3 is located sets up in keyway 4 on 2 inner walls of impeller, threaded connection between the tip of main shaft 1 and impeller nut 5 then is provided with connection pad 6 between impeller nut 5 and impeller 2, connection pad 6 includes the annular base 7 of a circle, be provided with thin wall drum 8 on the base 7, the root of impeller nut 5 is the hexagon, and the internal diameter of thin wall drum 8 is greater than the circumscribed circle of hexagonal root on impeller nut 5, the pinhole has been seted up to one side that impeller nut 5 was kept away from to base 7, has worn to have connect in the pinhole connecting pin 9, a part of connecting pin 9 is located keyway 4.
And sealing rings 10 are arranged between the base 7 and the impeller 2 and between the base 7 and the impeller nut 5.
The utility model discloses can prevent not hard up impeller mechanism for pump's working process as follows: during assembly, firstly, the impeller 2 is sleeved outside the main shaft 1, the flat key 3 on the main shaft 1 is positioned in the key groove 4 formed in the inner wall of the impeller 2, the flat key and the key groove are connected to transmit torque, then the connecting disc 6 is sleeved on the end of the main shaft 1, specifically, the annular base 7 is sleeved on the end of the main shaft 1, and finally the impeller nut 5 is screwed on the end of the main shaft 1 and is screwed, and because the screwing direction of the impeller nut 5 is opposite to the rotating direction of the impeller 2 in the conventional working state, the impeller nut 5 cannot be loosened in the conventional working state of the pump, so that the stable connection between the main shaft 1 and the impeller 2 is ensured;
after the impeller nut 5 is screwed, the thin-wall cylinder 8 is knocked by a hammer and other tools to be deformed and tightly attached to the hexagonal outer wall at the root of the impeller nut 5, after a circle of the thin-wall cylinder 8 is knocked, the thin-wall cylinder 8 can form a shape similar to a regular hexagon and is wrapped on the hexagonal outer side at the root of the impeller nut 5, namely the connecting disc 6 is connected with the impeller nut 5 into an integral structure through the deformed thin-wall cylinder 8, and meanwhile, the connecting disc 6 is connected with the key groove 4 formed in the inner wall of the impeller 2 through the connecting pin 9, namely, the impeller 2 is fixedly connected with the impeller nut 5 through the connecting disc 6 besides being connected through a threaded structure, so that even if the impeller 2 rotates reversely under certain working conditions, the impeller nut 5 cannot be loosened due to the reverse rotation, and the reliability of connection between the impeller 2 and the main shaft 1 is guaranteed.
Claims (3)
1. The utility model provides a can prevent not hard up impeller mechanism for pump, includes main shaft (1), its characterized in that: the utility model discloses a novel impeller structure, including main shaft (1), impeller (2) has cup jointed outward, just be provided with parallel key (3) on main shaft (1), parallel key (3) are located key groove (4) seted up on impeller (2) inner wall, threaded connection between the tip of main shaft (1) and impeller nut (5), then be provided with connection pad (6) between impeller nut (5) and impeller (2), connection pad (6) include a circular annular base (7), be provided with thin wall drum (8) on base (7), the root of impeller nut (5) is the hexagon, and the internal diameter of thin wall drum (8) is greater than the circumscribed circle of hexagonal root on impeller nut (5), the pinhole has been seted up to one side that impeller nut (5) was kept away from in base (7), has worn to connect in the pinhole connecting pin (9), a part of connecting pin (9) is located key groove (4).
2. The anti-loosening pump impeller mechanism of claim 1, wherein: a sealing ring (10) is arranged between the base (7) and the impeller (2).
3. The anti-loosening pump impeller mechanism of claim 1, wherein: and a sealing ring (10) is arranged between the base (7) and the impeller nut (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663304.9U CN218563993U (en) | 2022-10-11 | 2022-10-11 | Impeller mechanism for pump capable of preventing loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663304.9U CN218563993U (en) | 2022-10-11 | 2022-10-11 | Impeller mechanism for pump capable of preventing loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218563993U true CN218563993U (en) | 2023-03-03 |
Family
ID=85314989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222663304.9U Active CN218563993U (en) | 2022-10-11 | 2022-10-11 | Impeller mechanism for pump capable of preventing loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218563993U (en) |
-
2022
- 2022-10-11 CN CN202222663304.9U patent/CN218563993U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A pump impeller mechanism that can prevent loosening Granted publication date: 20230303 Pledgee: Agricultural Bank of China Limited Dalian Lvshunkou Sub-branch Pledgor: Dalian Shuanglong Pump Group Co.,Ltd. Registration number: Y2024980014155 |