CN114593070A - Ceramic bearing fluoroplastic magnetic pump - Google Patents
Ceramic bearing fluoroplastic magnetic pump Download PDFInfo
- Publication number
- CN114593070A CN114593070A CN202011297322.9A CN202011297322A CN114593070A CN 114593070 A CN114593070 A CN 114593070A CN 202011297322 A CN202011297322 A CN 202011297322A CN 114593070 A CN114593070 A CN 114593070A
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- China
- Prior art keywords
- pump
- magnetic steel
- main
- pump shaft
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000000919 ceramic Substances 0.000 title claims abstract description 49
- 229920002313 fluoropolymer Polymers 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 69
- 239000010959 steel Substances 0.000 claims abstract description 69
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims abstract description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 13
- 229910052731 fluorine Inorganic materials 0.000 claims description 13
- 239000011737 fluorine Substances 0.000 claims description 13
- 238000005461 lubrication Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000002585 base Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/026—Details of the bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/027—Details of the magnetic circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/049—Roller bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a ceramic bearing fluoroplastic magnetic drive pump, solves the structure complicacy that current magnetic drive pump exists, and the vibration is big, the noise is high, maintains frequently, uses the big problem of limitation. Be provided with the main pump shaft of impeller including one end, its characterized in that: the other end of the main pump shaft is provided with internal magnetic steel; a main ceramic ball bearing is arranged at the middle part of the main pump shaft and close to one side of the impeller, and a ceramic thrust bearing is arranged at the middle part of the main pump shaft and close to one side of the inner magnetic steel; a magnetic pump cover is arranged between the impeller and the inner magnetic steel and outside the middle part of the main pump shaft; the sealing cover seat arranged outside the inner magnetic steel is connected with the pump cover of the magnetic pump through a pressing plate; and a secondary pump shaft is arranged on the inner side of the end part of the sealing cover seat, and a secondary ceramic ball bearing is arranged between the secondary pump shaft and the inner magnetic steel. The device has the advantages of reasonable design, compact structure, stable operation, no vibration, low noise, long service life and low maintenance cost, and can operate for a long time under the condition of no lubrication.
Description
Technical Field
The invention belongs to the technical field of magnetic pumps, and particularly relates to a ceramic bearing fluoroplastic magnetic pump which is stable in operation, free of vibration, low in noise, capable of running for a long time under a non-lubrication condition, long in service life and low in maintenance cost.
Background
Most of the existing magnetic pumps and fluoroplastic magnetic pumps in the market adopt a structural form that a pair of friction pairs is arranged between the rear part of an impeller and the front part of inner magnetic steel, and a group of shaft sleeves and bushings are arranged between a pump shaft and a pump cover. After the magnetic pump and the fluoroplastic magnetic pump with the traditional structures are used for a short period of time, serious abrasion can occur between the friction pairs and between the shaft sleeve and the bushing, and further, due to the increase of gaps among all parts, the pump shaft rotates eccentrically, the pump body vibrates greatly, the noise is high, and the using effect of the magnetic pump is influenced; therefore, the friction pair, the shaft sleeve and the bushing need to be frequently replaced, so that the working efficiency is low, the labor intensity is high, and the production cost is increased. In addition, the friction pairs, the shaft sleeves and the bushings of the existing magnetic pumps can normally operate only when liquid exists; therefore, before the pump is started, the pump body needs to be filled with liquid, the pump body cannot be operated (idling) in a liquid-free state absolutely, and the phenomenon of medium cutoff (evacuation) cannot occur in operation, so that the application limitation is large. There is a need for improvements in prior art magnetic pumps and fluoroplastic magnetic pumps.
Disclosure of Invention
Aiming at the problems, the invention provides the ceramic bearing fluoroplastic magnetic pump which has the advantages of stable operation, no vibration, low noise, long service life and low maintenance cost, and can operate for a long time under the condition of no lubrication.
The technical scheme adopted by the invention is as follows: this ceramic bearing fluoroplastic magnetic drive pump includes main pump shaft, its characterized in that: one end of the main pump shaft is provided with an impeller, and the other end of the main pump shaft is provided with internal magnetic steel; a main ceramic ball bearing is arranged at the middle part of the main pump shaft and close to one side of the impeller, and a ceramic thrust bearing is arranged at the middle part of the main pump shaft and close to one side of the inner magnetic steel; a magnetic pump cover is arranged between the impeller and the inner magnetic steel and outside the middle part of the main pump shaft; a sealing cover seat is arranged outside the inner magnetic steel, and the sealing cover seat is connected with the pump cover of the magnetic pump through a pressing plate; and a secondary pump shaft coaxially arranged with the main pump shaft is arranged on the inner side of the end part of the sealing cover seat, and a secondary ceramic ball bearing is arranged between the secondary pump shaft and the inner magnetic steel.
The magnetic pump cover is composed of a pump cover main body, a main shaft through hole is formed in the middle of the pump cover main body, a ball bearing mounting groove I is formed in one end, close to the impeller, of the main shaft through hole, and a thrust bearing mounting groove is formed in one end, close to the inner magnetic steel, of the main shaft through hole; and a pump cover fluorine lining layer is arranged outside the pump cover main body. The structure strength and the use reliability of the pump cover of the magnetic pump are ensured while the arrangement of the main ceramic ball bearing and the ceramic thrust bearing is convenient.
The inner magnetic steel is composed of a cylindrical magnetic steel main body, and a magnet is arranged on the outer side wall of the magnetic steel main body; one end of the magnetic steel main body, which is connected with the main pump shaft, is provided with a main shaft connecting hole, and the other end of the magnetic steel main body is provided with a ball bearing mounting groove II; and a magnetic steel fluorine lining layer is arranged outside the magnetic steel main body. So as to facilitate the connection of the inner magnetic steel and the main pump shaft and facilitate the arrangement of the secondary ceramic ball bearing.
The sealing cover seat is composed of a cover seat main body, a magnetic steel accommodating cavity is arranged inside the cover seat main body, and a secondary shaft mounting hole is formed in the end wall of the inner side of the magnetic steel accommodating cavity; a connecting flange is arranged at one end of the cover seat main body connected with the magnetic pump cover; and a cover seat fluorine lining layer is arranged outside the cover seat main body.
One end of the secondary pump shaft is provided with a bearing connecting end, and the other end of the secondary pump shaft is provided with a fixed connecting end; the secondary pump shaft is fixedly connected with a secondary shaft mounting hole in the sealing cover seat magnetic steel accommodating cavity through a fixed connecting end, and the secondary pump shaft is rotatably connected with the secondary ceramic ball bearing through a bearing connecting end.
The invention has the beneficial effects that: because the invention adopts the main pump shaft with one end provided with the impeller, the other end of the main pump shaft is provided with the inner magnetic steel; a main ceramic ball bearing is arranged at one side of the middle part of the main pump shaft close to the impeller, and a ceramic thrust bearing is arranged at one side of the middle part of the main pump shaft close to the inner magnetic steel; a magnetic pump cover is arranged between the impeller and the inner magnetic steel and outside the middle part of the main pump shaft; the sealing cover seat arranged outside the inner magnetic steel is connected with the pump cover of the magnetic pump through a pressing plate; the inner side of the end part of the sealing cover seat is provided with the secondary pump shaft, and a secondary ceramic ball bearing is arranged between the secondary pump shaft and the inner magnetic steel, so that the sealing cover seat has reasonable design and compact structure, eliminates a friction pair, a shaft sleeve and a bush of the traditional magnetic pump, and has few components; and the rear part of the impeller and the pump body are not provided with screws, so that the use reliability is high. The main ceramic ball bearing arranged in the middle of the main pump shaft and the secondary ceramic ball bearing arranged at the rear end part of the inner magnetic steel are utilized, so that the radial force borne by the main pump shaft is effectively balanced, and the phenomena of eccentricity and vibration during the operation of the pump shaft are avoided. Meanwhile, the ceramic thrust bearing arranged in the middle of the main pump shaft solves the problem of axial movement of the rotor. The ceramic bearing fluoroplastic magnetic pump has the advantages of stable operation, no vibration, low noise, long service life and low maintenance cost, and can operate for a long time under the condition of no lubrication.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of a pump cover of the magnetic pump of fig. 1.
Fig. 3 is a schematic view of the internal magnetic steel of fig. 1.
Fig. 4 is a schematic view of a configuration of the boot seal of fig. 1.
Fig. 5 is a schematic view of a construction of the secondary pump shaft of fig. 1.
The sequence numbers in the figures illustrate: the pump comprises a main pump shaft 1, an impeller 2, a main ceramic ball bearing 3, a magnetic pump cover 4, a ceramic thrust bearing 5, a pressure plate 6, an inner magnetic steel 7, a seal cover seat 8, a secondary ceramic ball bearing 9, a secondary pump shaft 10, a pump cover main body 11, a pump cover fluorine lining layer 12, a ball bearing mounting groove 13I, a main shaft through hole 14, a thrust bearing mounting groove 15, a magnetic steel main body 16, a magnet 17, a main shaft connecting hole 18, a magnetic steel fluorine lining layer 19, a ball bearing mounting groove 20 II, a cover seat main body 21, a connecting flange 22, a cover seat fluorine lining layer 23, a magnetic steel accommodating cavity 24, a secondary shaft mounting hole 25, a bearing connecting end 26 and a fixed connecting end 27.
Detailed Description
The specific structure of the present invention will be described in detail with reference to FIGS. 1 to 5. The ceramic bearing fluoroplastic magnetic pump comprises a main pump shaft 1, wherein one end of the main pump shaft is provided with an impeller 2; and the other end of the main pump shaft 1 is provided with an inner magnetic steel 7 which is matched with the outer magnetic assembly to rotate. A magnetic pump cover 4 is arranged between the impeller 2 and the inner magnetic steel 7 and on the outer side of the middle part of the main pump shaft 1, the magnetic pump cover 4 is composed of a cover main body 11, and a main shaft through hole 14 for the main pump shaft 1 to pass through is arranged in the middle part of the cover main body 11; the pump cover main body 11 is provided with a through hole and a groove which are convenient for fixing a fluorine lining layer, and a rib plate used for increasing structural strength is further arranged at the main shaft through hole 14. The main shaft through hole 14 of the pump cover main body 11 is provided with a ball bearing mounting groove I13 for arranging the main ceramic ball bearing 3 at one end close to the impeller 2, and the main shaft through hole 14 is provided with a thrust bearing mounting groove 15 for arranging the ceramic thrust bearing 5 at one end close to the inner magnetic steel 7. The pump cover main body 11 is provided with a pump cover fluorine lining layer 12 on the outside. And then make things convenient for main ceramic ball bearing 3 and ceramic thrust bearing 5 to arrange, ensure the intensity of magnetic drive pump cover 4 structure, promote the use reliability.
The middle part of the main pump shaft 1, close to one side of the impeller 2, and a ball bearing mounting groove I13 of the magnetic pump cover 4 are internally provided with a main ceramic ball bearing 3; and a ceramic thrust bearing 5 is arranged in the thrust bearing mounting groove 15 of the magnetic pump cover 4, on one side of the middle part of the main pump shaft 1 close to the inner magnetic steel 7. The inner magnetic steel 7 arranged at the end part of the main pump shaft 1 consists of a cylindrical magnetic steel main body 16, and a magnet 17 is arranged on the outer side wall of the magnetic steel main body 16. A spindle connecting hole 18 with threads is formed at one end of the magnetic steel main body 16 connected with the main pump shaft 1; the other end of the magnetic steel main body 16 is provided with a ball bearing mounting groove II 20 for arranging the secondary ceramic ball bearing 9. The magnetic steel body 16 is provided with a magnetic steel fluorine lining layer 19 on the outside.
A sealing cover seat 8 is arranged outside the inner magnetic steel 7, the sealing cover seat 8 is composed of a cover seat main body 21, and a magnetic steel accommodating cavity 24 is arranged inside the cover seat main body 21; and a secondary shaft mounting hole 25 for fixing the secondary pump shaft 10 is formed in the end wall of the inner side of the magnetic steel accommodating cavity 24 of the seal cover seat 8. A connecting flange 22 is arranged at one end of the cover seat main body 21 of the sealing cover seat 8, which is connected with the magnetic pump cover 4; the mask base body 21 is provided with a mask base fluorine lining layer 23 on the outside. The connecting flange 22 of the sealing cover seat 8 is connected with the magnetic pump cover 4 through the pressing plate 6. A secondary pump shaft 10 which is coaxially arranged with the main pump shaft 1 is arranged on the inner side of the end part of the sealing cover seat 8, a bearing connecting end 26 is arranged at one end of the secondary pump shaft 10, and a fixed connecting end 27 is arranged at the other end of the secondary pump shaft 10; the secondary pump shaft 10 is fixedly connected with a secondary shaft mounting hole 25 in the magnetic steel accommodating cavity 24 of the seal cover seat 8 through a fixed connecting end 27, and the secondary pump shaft 10 is rotatably connected with a secondary ceramic ball bearing 9 arranged in the inner magnetic steel 7 ball bearing mounting groove II 20 through a bearing connecting end 26.
When the ceramic bearing fluoroplastic magnetic pump is used, an external driving force drives the external magnetic assembly to rotate, a magnetic field penetrates through the air gap and nonmagnetic substances, and drives the internal magnetic steel 7 to synchronously rotate together with the impeller 2 connected with the internal magnetic steel through the main pump shaft 1, so that the non-contact synchronous transmission of power is realized. In the operation process of the magnetic pump, the main ceramic ball bearing 3 arranged at the middle part of the main pump shaft 1 and the secondary ceramic ball bearing 9 arranged at the rear end part of the inner magnetic steel 7 can balance the radial force borne by the main pump shaft, so that the phenomena of eccentricity throwing and vibration during the operation of the pump shaft are solved. In addition, the ceramic thrust bearing 5 arranged in the middle of the main pump shaft 1 can effectively solve the problem of axial movement of the rotor. The ceramic bearing fluoroplastic magnetic pump has strong acid and alkali resistance, stable operation, no vibration, low noise, long service life and capability of operating for a long time under the condition of no lubrication.
Claims (5)
1. The utility model provides a ceramic bearing fluoroplastics magnetic drive pump, includes main pump shaft (1), its characterized in that: an impeller (2) is arranged at one end of the main pump shaft (1), and an inner magnetic steel (7) is arranged at the other end of the main pump shaft (1); a main ceramic ball bearing (3) is arranged at the middle part of the main pump shaft (1) and close to one side of the impeller (2), and a ceramic thrust bearing (5) is arranged at the middle part of the main pump shaft (1) and close to one side of the inner magnetic steel (7); a magnetic pump cover (4) is arranged between the impeller (2) and the inner magnetic steel (7) and outside the middle part of the main pump shaft (1); a sealing cover seat (8) is arranged outside the inner magnetic steel (7), and the sealing cover seat (8) is connected with the magnetic pump cover (4) through a pressing plate (6); and a secondary pump shaft (10) which is coaxial with the main pump shaft (1) is arranged on the inner side of the end part of the sealing cover seat (8), and a secondary ceramic ball bearing (9) is arranged between the secondary pump shaft (10) and the inner magnetic steel (7).
2. The ceramic bearing fluoroplastic magnetic pump of claim 1, wherein: the magnetic pump cover (4) is composed of a cover main body (11), a main shaft through hole (14) is formed in the middle of the cover main body (11), a ball bearing mounting groove I (13) is formed in one end, close to the impeller (2), of the main shaft through hole (14), and a thrust bearing mounting groove (15) is formed in one end, close to the inner magnetic steel (7), of the main shaft through hole (14); and a pump cover fluorine lining layer (12) is arranged outside the pump cover main body (11).
3. The ceramic bearing fluoroplastic magnetic pump of claim 1, wherein: the inner magnetic steel (7) is composed of a cylindrical magnetic steel main body (16), and a magnet (17) is arranged on the outer side wall of the magnetic steel main body (16); a main shaft connecting hole (18) is formed in one end, connected with the main pump shaft (1), of the magnetic steel main body (16), and a ball bearing mounting groove II (20) is formed in the other end of the magnetic steel main body (16); and a magnetic steel fluorine lining layer (19) is arranged outside the magnetic steel main body (16).
4. The ceramic bearing fluoroplastic magnetic pump of claim 1, wherein: the sealing cover seat (8) is composed of a cover seat main body (21), a magnetic steel accommodating cavity (24) is arranged inside the cover seat main body (21), and a secondary shaft mounting hole (25) is formed in the end wall of the inner side of the magnetic steel accommodating cavity (24); a connecting flange (22) is arranged at one end of the cover seat main body (21) connected with the magnetic pump cover (4); the cover seat main body (21) is externally provided with a cover seat fluorine lining layer (23).
5. The ceramic bearing fluoroplastic magnetic pump of claim 4, wherein: one end of the secondary pump shaft (10) is provided with a bearing connecting end (26), and the other end of the secondary pump shaft (10) is provided with a fixed connecting end (27); the secondary pump shaft (10) is fixedly connected with a secondary shaft mounting hole (25) in the magnetic steel accommodating cavity (24) of the sealing cover seat (8) through a fixed connecting end (27), and the secondary pump shaft (10) is rotatably connected with the secondary ceramic ball bearing (9) through a bearing connecting end (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011297322.9A CN114593070A (en) | 2020-11-19 | 2020-11-19 | Ceramic bearing fluoroplastic magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011297322.9A CN114593070A (en) | 2020-11-19 | 2020-11-19 | Ceramic bearing fluoroplastic magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114593070A true CN114593070A (en) | 2022-06-07 |
Family
ID=81813442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011297322.9A Pending CN114593070A (en) | 2020-11-19 | 2020-11-19 | Ceramic bearing fluoroplastic magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114593070A (en) |
-
2020
- 2020-11-19 CN CN202011297322.9A patent/CN114593070A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220607 |
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| WD01 | Invention patent application deemed withdrawn after publication |