CN106812702B - High stability magnetic centrifugal pump - Google Patents
High stability magnetic centrifugal pump Download PDFInfo
- Publication number
- CN106812702B CN106812702B CN201710137887.2A CN201710137887A CN106812702B CN 106812702 B CN106812702 B CN 106812702B CN 201710137887 A CN201710137887 A CN 201710137887A CN 106812702 B CN106812702 B CN 106812702B
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- Prior art keywords
- pump
- shaft
- sliding bearing
- shaft coupling
- bearing
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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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
Abstract
The invention discloses a high stability magnetic centrifugal pump, comprising: the pump comprises a pump body, a magnetic driver and a motor, wherein a transmission mechanism is arranged in the pump body, a pump shaft and a sliding bearing are arranged in the transmission mechanism, the sliding bearing is arranged on the pump shaft, at least a front support and a rear support are arranged on the outer side of the sliding bearing, the front support is connected with an impeller, the rear support is connected with a reinforcing sleeve on the magnetic driver and a bracket of the pump body, the impeller is arranged at one end of the pump shaft and is connected with the magnetic driver, and the magnetic driver is connected with the motor through a motor sleeve plate; the two ends of the sliding bearing are provided with cover plates, and the cover plates adopt double cover plates. The front support and the rear support are arranged on the sliding bearing, so that a double-support structure is realized, the torque force borne by the pump in the operation process is greatly improved, and the pump has safe reliability in conveying high temperature and high pressure; meanwhile, the arrangement of the double cover plates at the two ends of the sliding bearing greatly improves the safety and the reliability of the sliding bearing.
Description
Technical Field
The invention belongs to a magnetic centrifugal pump, and particularly relates to a high-stability magnetic centrifugal pump.
Background
The magnetic centrifugal pump is a high-tech product which applies the working principle of a permanent magnet coupling to the centrifugal pump, has the characteristics of reasonable design, advanced process, full sealing, no leakage, corrosion resistance and the like, and can be widely used for pumping and delivering acid, alkali liquor, rare heavy liquid of oil, poisonous liquid and volatile liquid, particularly the conveying and pressurizing of easy-to-leak, inflammable and explosive liquid in units of chemical engineering, acid making, alkali making, smelting, rare earth, pesticide, dye, medicine, paper making, electroplating, acid washing, radio, formed foil, petroleum, food, cinematography, scientific research institutions, national defense industry and the like.
Magnetic centrifugal pumps have been widely used for the delivery of various liquid chemicals. Most of the existing magnetic centrifugal pumps are single supports, the bearing torsion of the pump body in the operation process is limited to a certain extent in the actual use process, once the torsion is too large, the bearing and other parts are damaged, the service life of the whole centrifugal pump is seriously influenced, meanwhile, two end cover plates of the existing centrifugal pumps are mostly single cover plates, the stability of the existing centrifugal pumps in the operation process is poor, the operation safety and reliability of the existing magnetic centrifugal pumps are seriously influenced, and therefore the existing magnetic centrifugal pumps are still to be improved.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the high-stability magnetic centrifugal pump which is simple in structure, reasonable in design and easy to produce, greatly improves the torque force borne by the pump body in the operation process, and further greatly improves the stable safety and reliability of the operation of the magnetic centrifugal pump.
The technical scheme is as follows: in order to achieve the above object, the present invention provides a high stability magnetic centrifugal pump, comprising: the pump comprises a pump body, a middle body and a transmission mechanism, wherein a pump shaft, a thrust bearing, a sliding bearing and a coupling are arranged in the transmission mechanism, the pump shaft is arranged in the middle body, the thrust bearing and the coupling are arranged at two ends of the pump shaft, an impeller is arranged on one side, close to the pump body, of the thrust bearing, the sliding bearing is arranged on the pump shaft, a first bearing and a second bearing are arranged on the outer side of the coupling, a bearing gland is arranged on the outer side of the second bearing, a lengthened coupling is arranged at the tail part of the pump shaft, a shaft is arranged in the lengthened coupling, and the middle body;
the sliding bearing adopts a double-support sliding bearing, and both ends of the sliding bearing are provided with cover plates.
According to the high-stability magnetic centrifugal pump, the sliding bearing adopts the double-support bearing, so that a double-support structure is realized, the torsion borne by the pump in the operation process is greatly improved, the operation stability of the whole pump body is also greatly improved, and the pump has safe reliability in high-temperature and high-pressure conveying; meanwhile, the two ends of the sliding bearing are respectively provided with the cover plate, so that the operation safety and reliability of the magnetic centrifugal pump are greatly improved compared with those of a magnetic centrifugal pump with a single cover plate, and the requirement for production is better met.
The shaft coupling comprises an inner shaft coupling and an outer shaft coupling, the inner shaft coupling and the outer shaft coupling are arranged on the pump shaft, an isolation sleeve is arranged between the inner shaft coupling and the outer shaft coupling, and the inner shaft coupling and the outer shaft coupling are matched with each other, so that the transmission performance of the centrifugal pump is greatly improved.
According to the invention, two ends of the isolation sleeve are connected with the middle body, and the sealing ring is arranged between the two ends, so that the sealing performance between the coupler and the middle body can be effectively improved.
The suspension is arranged on the outer side of the coupler, one end of the suspension is connected with the middle body through the connecting piece, the end cover is arranged on the other end of the suspension, and the suspension can play a good role in protecting the coupler.
The pump also comprises a bracket, wherein the bracket is composed of a front bracket and a rear bracket, the front bracket is arranged below the pump body, the rear bracket is arranged below the suspension, the bracket is triangular, and the stability of the bracket can be greatly improved due to the arrangement of the triangular bracket.
The sliding bearing is provided with a shaft sleeve, and the inside and the outside of the shaft sleeve are respectively matched with the pump shaft and the sliding bearing.
According to the invention, the sealing ring is arranged between the pump body and the impeller, the sealing gasket is arranged at the joint of the pump body and the middle body, and the sealing performance between the pump body and the impeller and between the pump body and the middle body is respectively and effectively improved by the arrangement of the sealing ring and the sealing gasket.
The inner coupler is I-shaped, the diameter of the inner wall of the inner coupler is matched with the diameter of a pump shaft, the outer coupler is inverted convex, openings are formed in two ends of the outer coupler, and the outer coupler is matched with the inner coupler.
The cover plate adopts a double-sided cover plate, the reinforcing ribs are arranged on the cover plate, the sealing performance of the double-sided cover plate is greatly improved due to the arrangement of the reinforcing ribs, the quality of the double-sided cover plate is effectively improved due to the arrangement of the reinforcing ribs, and the service life of the double-sided cover plate is prolonged.
The technical scheme shows that the invention has the following beneficial effects:
1. according to the high-stability magnetic centrifugal pump, the sliding bearing adopts the double-support bearing, so that a double-support structure is realized, the torsion borne by the pump in the operation process is greatly improved, the operation stability of the whole pump body is also greatly improved, and the pump has safe reliability in high-temperature and high-pressure conveying; meanwhile, the two ends of the sliding bearing are respectively provided with the cover plate, the cover plates adopt double-faced cover plates, and the operation safety and reliability of the magnetic centrifugal pump are greatly improved compared with those of a single-cover-plate magnetic centrifugal pump, so that the production requirement is better met.
2. The shaft coupling comprises an inner shaft coupling and an outer shaft coupling, the inner shaft coupling and the outer shaft coupling are arranged on the pump shaft, an isolation sleeve is arranged between the inner shaft coupling and the outer shaft coupling, the inner shaft coupling is I-shaped, the diameter of the inner wall of the inner shaft coupling is matched with the diameter of the pump shaft, the outer shaft coupling is inverted-convex, openings are formed in two ends of the outer shaft coupling, the outer shaft coupling is matched with the inner shaft coupling, the supporting performance of the inner shaft coupling and the outer shaft coupling can be greatly improved, the transmission performance of the centrifugal pump is greatly improved, and the transmission stability of the centrifugal pump is further improved.
3. The cover plate adopts a double-sided cover plate, the reinforcing ribs are arranged on the cover plate, the sealing performance of the double-sided cover plate is greatly improved due to the arrangement of the reinforcing ribs, the quality of the double-sided cover plate is effectively improved due to the arrangement of the reinforcing ribs, and the service life of the double-sided cover plate is prolonged.
Drawings
FIG. 1 is a schematic structural view of a high stability magnetic centrifugal pump according to the present invention;
in the figure: the pump comprises a pump body-1, a middle body-2, a pump shaft-3, a thrust bearing-4, a sliding bearing-5, a first bearing-6, a second bearing-7, a bearing gland-8, a lengthened coupler-9, a shaft-10, an inner coupler-11, an outer coupler-12, an isolation sleeve-13, a suspension-14, a bracket-15, an impeller-16 and a shaft sleeve-51.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Examples
As shown in fig. 1, a high stability magnetic centrifugal pump includes: the pump comprises a pump body 1, a middle body 2 and a transmission mechanism, wherein the transmission mechanism is internally provided with a pump shaft 3, a thrust bearing 4, a sliding bearing 5 and a shaft coupling, the pump shaft 3 is arranged in the middle body 2, the thrust bearing 4 and the shaft coupling are arranged at two ends of the pump shaft 3, one side of the thrust bearing 4 close to the pump body 1 is provided with an impeller 16, the sliding bearing 5 is arranged on the pump shaft 3, the outer side of the shaft coupling is provided with a first bearing 6 and a second bearing 7, the outer side of the second bearing 7 is provided with a bearing gland 8, the tail part of the pump shaft 3 is provided with a lengthened shaft coupling 9, the lengthened shaft coupling 9 is internally provided with a shaft 10, and; the sliding bearing 5 adopts a double-support sliding bearing, and both ends of the sliding bearing are provided with cover plates.
In this embodiment, the shaft coupling is composed of an inner shaft coupler 11 and an outer shaft coupler 12, the inner shaft coupler 11 and the outer shaft coupler 12 are arranged on the pump shaft 3, and an isolation sleeve 13 is arranged between the inner shaft coupler 11 and the outer shaft coupler 12.
In this embodiment, the two ends of the isolation sleeve 13 are connected with the middle body 2, and a sealing ring is arranged between the two ends.
In this embodiment, a suspension 14 is disposed on the outer side of the coupler, one end of the suspension 14 is connected to the middle body 2 through a connecting member, and the other end is provided with an end cover.
The present embodiment further includes a bracket 15, where the bracket 15 is composed of a front bracket and a rear bracket, the front bracket is disposed below the pump body 1, and the rear bracket is disposed below the suspension 14.
In this embodiment, the sliding bearing 5 is provided with a shaft sleeve 51, and the inside and the outside of the shaft sleeve 51 are respectively matched with the pump shaft 3 and the sliding bearing 5.
In this embodiment, a sealing ring is arranged between the pump body 1 and the impeller 16, and a sealing gasket is arranged at the joint of the pump body 1 and the middle body 2.
In this embodiment, the inner coupling 11 is i-shaped, the diameter of the inner wall thereof is matched with the diameter of the pump shaft 1, the outer coupling 12 is inverted convex, openings are formed at both ends thereof, and the outer coupling 12 is matched with the inner coupling 11.
In this embodiment, the cover plate 1 is a double-sided cover plate, and reinforcing ribs are arranged on the cover plate.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (1)
1. The utility model provides a high stability magnetic force centrifugal pump which characterized in that: the method comprises the following steps: the pump comprises a pump body (1), a middle body (2) and a transmission mechanism, wherein the transmission mechanism is internally provided with a pump shaft (3), a thrust bearing (4), a sliding bearing (5) and a shaft coupling, the pump shaft (3) is arranged in the middle body (2), the thrust bearing (4) and the shaft coupling are arranged at two ends of the pump shaft (3), an impeller (16) is arranged on one side, close to the pump body (1), of the thrust bearing (4), the sliding bearing (5) is arranged on the pump shaft (3), a first bearing (6) and a second bearing (7) are arranged on the outer side of the shaft coupling, a bearing gland (8) is arranged on the outer side of the second bearing (7), a lengthened shaft coupling (9) is arranged at the tail part of the pump shaft (3), a shaft (10) is arranged in the lengthened shaft coupling (9), and the middle body (2);
the sliding bearing (5) adopts a double-support sliding bearing, and both ends of the sliding bearing are provided with cover plates; the shaft coupling is composed of an inner shaft coupling (11) and an outer shaft coupling (12), the inner shaft coupling (11) and the outer shaft coupling (12) are arranged on the pump shaft (3), and an isolation sleeve (13) is arranged between the inner shaft coupling (11) and the outer shaft coupling (12); two ends of the isolation sleeve (13) are connected with the middle body (2), and a sealing ring is arranged between the two ends; a suspension (14) is arranged on the outer side of the coupler, one end of the suspension (14) is connected with the middle body (2) through a connecting piece, and an end cover is arranged at the other end of the suspension; the pump further comprises a bracket (15), wherein the bracket (15) consists of a front bracket and a rear bracket, the front bracket is arranged below the pump body (1), and the rear bracket is arranged below the suspension (14); the sliding bearing (5) is provided with a shaft sleeve (51), and the inside and the outside of the shaft sleeve (51) are respectively matched with the pump shaft (3) and the sliding bearing (5); a sealing ring is arranged between the pump body (1) and the impeller (16), and a sealing gasket is arranged at the joint of the pump body (1) and the middle body (2); the inner coupler (11) is I-shaped, the diameter of the inner wall of the inner coupler is matched with the diameter of the pump shaft (1), the outer coupler (12) is inverted convex, openings are formed in two ends of the outer coupler, and the outer coupler (12) is matched with the inner coupler (11); the cover plate (1) is a double-faced cover plate, and reinforcing ribs are arranged on the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137887.2A CN106812702B (en) | 2017-03-09 | 2017-03-09 | High stability magnetic centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137887.2A CN106812702B (en) | 2017-03-09 | 2017-03-09 | High stability magnetic centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106812702A CN106812702A (en) | 2017-06-09 |
| CN106812702B true CN106812702B (en) | 2020-07-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710137887.2A Active CN106812702B (en) | 2017-03-09 | 2017-03-09 | High stability magnetic centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106812702B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0431332B1 (en) * | 1989-11-08 | 1995-11-02 | Sanwa Tokushu Seiko Co., Ltd. | Magnetically driven pump |
| CN101392763A (en) * | 2008-10-29 | 2009-03-25 | 顾建军 | High-temperature and high-pressure magnetic pump |
| CN102465885A (en) * | 2010-11-18 | 2012-05-23 | 黄佳华 | Horizontal high-speed magnetic pump |
| CN104564702A (en) * | 2014-12-24 | 2015-04-29 | 安徽南方化工泵业有限公司 | Magnetic pump with high-temperature structure |
| CN106151056A (en) * | 2016-08-05 | 2016-11-23 | 江苏亚梅泵业集团有限公司 | A kind of clamping plate type desulfurization pump and installation method thereof |
-
2017
- 2017-03-09 CN CN201710137887.2A patent/CN106812702B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0431332B1 (en) * | 1989-11-08 | 1995-11-02 | Sanwa Tokushu Seiko Co., Ltd. | Magnetically driven pump |
| CN101392763A (en) * | 2008-10-29 | 2009-03-25 | 顾建军 | High-temperature and high-pressure magnetic pump |
| CN102465885A (en) * | 2010-11-18 | 2012-05-23 | 黄佳华 | Horizontal high-speed magnetic pump |
| CN104564702A (en) * | 2014-12-24 | 2015-04-29 | 安徽南方化工泵业有限公司 | Magnetic pump with high-temperature structure |
| CN106151056A (en) * | 2016-08-05 | 2016-11-23 | 江苏亚梅泵业集团有限公司 | A kind of clamping plate type desulfurization pump and installation method thereof |
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| Publication number | Publication date |
|---|---|
| CN106812702A (en) | 2017-06-09 |
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