CN202468424U - Permanent magnet thrust bearings of vertical magnetic pump - Google Patents
Permanent magnet thrust bearings of vertical magnetic pump Download PDFInfo
- Publication number
- CN202468424U CN202468424U CN2012200642921U CN201220064292U CN202468424U CN 202468424 U CN202468424 U CN 202468424U CN 2012200642921 U CN2012200642921 U CN 2012200642921U CN 201220064292 U CN201220064292 U CN 201220064292U CN 202468424 U CN202468424 U CN 202468424U
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- China
- Prior art keywords
- bearing
- pump
- permanent magnet
- thrust
- vertical magnetic
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model relates to permanent magnet thrust bearings of a vertical magnetic pump. The permanent magnet thrust bearings of the vertical magnetic pump are characterized in that a pair of permanent magnet thrust bearings at a certain interval is symmetrically arranged on a pump shaft; each permanent magnet thrust bearing consists of bearings and bearing seats, wherein each bearing consists of a shaft sleeve with the L-shaped section and permanent magnets which are arranged in the shaft sleeve and arranged along the circumference, the bearings are arranged in the sealed bearing seats, one bearing seat is connected with the pump shaft, and the other bearing seat is connected with a last-stage guide vane. The permanent magnet thrust bearings of the vertical magnetic pump have the characteristics that thrust generated by the permanent magnetic thrust bearings is utilized to balance downward gravity of a pump rotor, resistance can not be generated during starting and stopping of the pump, and the pump is easy to start and stop, therefore, stability and reliability in operation is ensured, and the service life of the pump is prolonged.
Description
Technical field
The utility model relates to a kind of bearing structure, particularly a kind ofly is used for the vertical magnetic force pump permanent magnet thrust-bearing that rotor gravity carries out balance.
Background technique
The especially multistage vertical magnetic drive pump of vertical magnetic drive pump is because of the weight of its rotor is bigger, at the pump startup initial stage; Hydrodynamic pressure is not also set up, and the weight of magnetic drive pump rotor is all carried by Balance disc, produces the bigger resistance of start thus; Therefore, the startup of pump is relatively more difficult.Even can start smoothly, also can cause the wearing and tearing of Balance disc wear ring.Particularly in the occasion of frequent starting, the degree of wear of thrust-bearing Balance disc wear ring is even more serious.
Summary of the invention
The purpose of the utility model is to provide a kind of magnetic force pump permanent magnet thrust-bearing, and this bearing can be realized the axial suspension of vertical magnetic drive pump rotor, and its bearing capacity is strong, and the startup of pump is easy, and it is reliable to operate steadily.
The technical solution of the utility model is: a kind of vertical magnetic force pump permanent magnet thrust-bearing; It is characterized in that on pump shaft, being symmetrical set a pair of thrust magnetic bearing at a distance of a determining deviation; Thrust magnetic bearing is to be made up of bearing and bearing support, bearing by the cross section be the L type axle sleeve be arranged in the axle sleeve and constitute along the permanent magnets of circumferential array, bearing is arranged in the bearing support of sealing; One of them bearing support is connected with pump shaft, and another bearing support is connected with the final stage stator.
The shape of the permanent magnets of two thrust magnetic bearings is identical with quantity.
The utility model is employed in installs a pair of thrust magnetic bearing on the pump shaft, utilize the magnetic principle that there is a natural attraction between the sexes, the same sex is repelled each other, and rationally adjusts two spacings between the thrust magnetic bearing; Make the thrust of thrust magnetic bearing equal the gravity of rotor, like this, when magnetic drive pump start or shutdown; Thrust and the downward gravity of rotor that thrust magnetic bearing produces balance each other, and realize the axial suspension of pump rotor, and the weight of pump rotor can not exert an influence to the startup and the operation of pump; There is not surface friction drag between parts yet; The startup of pump is easy, operates steadily, and needing to be particularly suitable for the occasion of frequent start-stop to use.
The characteristics of the utility model are: the downward gravity of thrust-balancing pump rotor that utilizes thrust magnetic bearing to produce, the startup of pump and close closed procedure and can not produce resistance opens and closes easily, guarantees steady reliable operation, prolongs pump working life.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to detail:
As shown in the figure, a pair of thrust magnetic bearing 11,12 at a distance of a determining deviation is set on the vertical magnetic force pump shaft 9.Thrust magnetic bearing is that the bearing support by bearing and sealing constitutes, bearing by the cross section be the L type axle sleeve 2 be arranged in the axle sleeve and constitute along the permanent magnets 1 of circumferential array.Bearing is arranged in the annular groove of bearing support, and its bottom bracket 4 is through pedestal cap 3 sealings, and bearing support 10 is through 13 sealings of bearing support cover.Bearing support 4 is connected with magnetic force pump shaft 9 keys, and fixing with snap ring gland 7 and link 8 through the snap ring 6 at its top, and thrust magnetic bearing can be rotated with pump shaft.Bearing support 10 is fixed on the final stage guide vane 5.The shape of the permanent magnets of two thrust magnetic bearings is identical with quantity, and is oppositely arranged, and regulates the spacing of two thrust magnetic bearings, makes its thrust that satisfies thrust magnetic bearing equal the gravity of rotor.
Claims (2)
1. vertical magnetic force pump permanent magnet thrust-bearing; It is characterized in that on pump shaft, being symmetrical set a pair of thrust magnetic bearing at a distance of a determining deviation; Thrust magnetic bearing is to be made up of bearing and bearing support, bearing by the cross section be the L type axle sleeve be arranged in the axle sleeve and constitute along the permanent magnets of circumferential array, bearing is arranged in the bearing support of sealing; One of them bearing support is connected with pump shaft, and another bearing support is connected with the final stage stator.
2. a kind of vertical magnetic force pump permanent magnet thrust-bearing according to claim 1 is characterized in that the shape of permanent magnets of two thrust magnetic bearings is identical with quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200642921U CN202468424U (en) | 2012-02-24 | 2012-02-24 | Permanent magnet thrust bearings of vertical magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200642921U CN202468424U (en) | 2012-02-24 | 2012-02-24 | Permanent magnet thrust bearings of vertical magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468424U true CN202468424U (en) | 2012-10-03 |
Family
ID=46916584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200642921U Expired - Fee Related CN202468424U (en) | 2012-02-24 | 2012-02-24 | Permanent magnet thrust bearings of vertical magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468424U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410770A (en) * | 2013-07-24 | 2013-11-27 | 黄佳华 | Axial force and magnetic force self-balancing device |
| CN104564706A (en) * | 2015-01-07 | 2015-04-29 | 丹东克隆先锋泵业有限公司 | Vertical magnetic pump |
| CN110701094A (en) * | 2019-10-16 | 2020-01-17 | 大连金石泵业有限公司 | Axial force balance magnetic device for pump |
-
2012
- 2012-02-24 CN CN2012200642921U patent/CN202468424U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410770A (en) * | 2013-07-24 | 2013-11-27 | 黄佳华 | Axial force and magnetic force self-balancing device |
| CN103410770B (en) * | 2013-07-24 | 2015-09-16 | 黄佳华 | Axial force magnetic force self balancing device |
| CN104564706A (en) * | 2015-01-07 | 2015-04-29 | 丹东克隆先锋泵业有限公司 | Vertical magnetic pump |
| CN110701094A (en) * | 2019-10-16 | 2020-01-17 | 大连金石泵业有限公司 | Axial force balance magnetic device for pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20170224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |