CN202520570U - Magnetic drive pump with built-in permanent magnet bearing - Google Patents
Magnetic drive pump with built-in permanent magnet bearing Download PDFInfo
- Publication number
- CN202520570U CN202520570U CN2012200798319U CN201220079831U CN202520570U CN 202520570 U CN202520570 U CN 202520570U CN 2012200798319 U CN2012200798319 U CN 2012200798319U CN 201220079831 U CN201220079831 U CN 201220079831U CN 202520570 U CN202520570 U CN 202520570U
- Authority
- CN
- China
- Prior art keywords
- bearing
- permanent magnet
- pump
- axle sleeve
- bearing shell
- 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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Abstract
The utility model discloses a magnetic drive pump with a built-in permanent magnet bearing. The magnetic drive pump with the built-in permanent magnet bearing is characterized in that a permanent magnet is respectively installed inside a shaft sleeve and a bearing bush of a sliding bearing, adjacent magnetic poles of the permanent magnets are the same, namely a cylindrical permanent magnet which is of the same axis as the sliding bearing is respectively embedded in the shaft sleeve and the bearing bush, and adjacent magnetic poles of two permanent magnets, namely an outer ring surface of the shaft sleeve permanent magnet and an inner ring surface of the bearing bush permanent magnet, are the same. According to the magnetic drive pump with the built-in permanent magnet bearing, the sliding bearing is provided with the function of automatic centering, safe and reliable operation of the magnetic drive pump is ensured, service life of the sliding bearing is prolonged, a certain amount of radial load is capable of being borne, and bearing capacity of the bearing is improved.
Description
Technical field
The utility model relates to a kind of magnetic drive pump.
Background technique
At present, though that magnetic drive pump has is a variety of, agent structure is basic identical, promptly
The live axle that can link to each other with motor is located in the bearing box assembly, and this bearing housing one end links to each other with an end of link press span barrel-type casing, and this link press span the other end links to each other with the pump housing that is provided with fluid inlet and outlet.Be provided with impeller in this pump housing, this impeller is located at an end of pump shaft, in the other end of this pump shaft is located in the magnet rotor assembly and through fastening piece fixing with its on.Pump shaft is provided with sliding bearing outward; Its bearing shell is located in the pump cover frame; This pump cover frame one end inboard is movably connected through choma and impeller, and the outside is stuck on the pump cover, and the other end of this pump cover links to each other through fastening piece with separation sleeve; Between separation sleeve and link press span, be provided with the outer magnet rotor corresponding with interior magnet rotor, this outer magnet rotor assembly links to each other through fastening piece with live axle.Above-mentioned pump shaft peripheral hardware has fixing axle sleeve on it, and this axle sleeve outside has corresponding with it and is located at the bearing shell on the pump cover frame, and both constitute sliding pair, 0.5 millimeter the running clearance of having an appointment between while axle sleeve and the bearing shell.Its deficiency is: pump shaft operation deflection can make movement clearance dwindle or convergence zero, pump is rotated with axle be obstructed, and causes the magnetic drive pump cisco unity malfunction.
Summary of the invention
The purpose of the utility model is to provide a kind of magnetic drive pump that can keep establishing in constant a kind of of running clearance between sliding bearing axle sleeve and the bearing shell magneto bearing.
The live axle that the utility model can link to each other with motor is located in the bearing box assembly, and this bearing housing one end links to each other with an end of link press span barrel-type casing, and this link press span the other end links to each other with the pump housing that is provided with fluid inlet and outlet.Be provided with impeller in this pump housing, this impeller is located at an end of pump shaft, in the other end of this pump shaft is located in the magnet rotor assembly and through fastening piece fixing with its on.Pump shaft is provided with sliding bearing outward; Its bearing shell is located in the pump cover frame; This pump cover frame one end inboard is movably connected through choma and impeller, and the outside is stuck on the pump cover, and the other end of this pump cover links to each other through fastening piece with separation sleeve; Between separation sleeve and link press span, be provided with the outer magnet rotor assembly corresponding with interior magnet rotor assembly, this outer magnet rotor assembly links to each other through fastening piece with live axle.
The utility model mainly is in the axle sleeve of sliding bearing and bearing shell, to be respectively equipped with permanent magnet; And their adjacent magnetic poles are identical; Promptly in axle sleeve and bearing shell, be inlaid with cylindrical permanent-magnet body respectively with the sliding bearing coaxial line; And the magnetic pole that two permanent magnets are adjacent is that axle sleeve permanent magnet outer ring surface is identical with the inner ring surface magnetic pole of bearing shell permanent magnet, or all is the N utmost point; Or all be the S utmost point.Because the identical mutual repulsion of both magnetic poles can keep running clearance constant.Be preferably in the relative part of axle sleeve and bearing shell, promptly the inner ring surface of axle sleeve permanent magnet outer ring surface and bearing shell permanent magnet is provided with wear-resisting pottery or alloy material layer, to improve axle sleeve and wear-resistance of bearing pad and to reduce their friction factor.
When turn round in pump shaft deviation theory center, can cause the gap width between the sliding pair to change a less side in the gap; The like pole repulsive force of permanent magnet increases; The bigger side in the gap, the like pole repulsive force of permanent magnet reduces, and the repulsive force of permanent magnet can move by the axial theoretical center of driving pump; Make little gap become big, and big gap smaller.
The utility model compared with prior art has following advantage:
1, the sliding bearing of this magnetic drive pump has the automatic centering function, has guaranteed that magnetic drive pump moves safely and reliably, has improved the working life of sliding bearing.
2,, therefore can improve the bearing capacity of bearing because the existence of the like pole repulsive force between permanent magnet can be born certain radial load.
3, because permanent magnet is encapsulated in the stainless steel axle sleeve or bearing shell of media-resistant corrosion, permanent magnet is not contacted with external environment, guaranteed permanent magnet proper functioning for a long time.
Description of drawings
Fig. 1 is that the utility model master looks generalized section.
Fig. 2 is the local enlarged diagram of I among Fig. 1.
EmbodimentLook in the generalized section the master who establishes the magnetic drive pump of magneto bearing in a kind of shown in Figure 1; The live axle 1 that can link to each other with motor is located in the bearing box assembly 2; This bearing housing one end links to each other with an end of link press span 3 barrel-type casings, and this link press span the other end links to each other with the pump housing that is provided with fluid inlet and outlet 4.Be provided with impeller 5 in this pump housing, this impeller is located at an end of pump shaft 6, in the other end of this pump shaft is located in the magnet rotor assembly 7 and through fastening piece fixing with its on.Pump shaft is provided with sliding bearing 8 outward; Its bearing shell is located in the pump cover frame 9; This pump cover frame one end inboard is movably connected through choma 10 and impeller, and the outside is stuck on the pump cover 11, and the other end of this pump cover and separation sleeve 12 link to each other through fastening piece; Between separation sleeve and link press span, be provided with the outer magnet rotor assembly corresponding with interior magnet rotor assembly, this outer magnet rotor assembly 13 links to each other through fastening piece with live axle.In the axle sleeve 14 of sliding bearing and bearing shell 15, be respectively equipped with permanent magnet 16; And their adjacent magnetic poles are identical; Promptly in axle sleeve and bearing shell, be inlaid with cylindrical permanent-magnet body respectively with the sliding bearing coaxial line; And the magnetic pole that two permanent magnets are adjacent is that axle sleeve permanent magnet outer ring surface is identical with the inner ring surface magnetic pole of bearing shell permanent magnet, is the N utmost point all, and is as shown in Figure 2.In the axle sleeve part relative with bearing shell, promptly the inner ring surface of axle sleeve permanent magnet outer ring surface and bearing shell permanent magnet is provided with wear-resisting pottery or alloy material layer in addition.
Claims (2)
1. establish the magnetic drive pump of magneto bearing in one kind, its live axle that can link to each other with motor is located in the bearing box assembly, and this bearing housing one end links to each other with an end of link press span barrel-type casing; This link press span the other end links to each other with the pump housing that is provided with fluid inlet and outlet, is provided with impeller in this pump housing, and this impeller is located at an end of pump shaft; In the other end of this pump shaft is located in the magnet rotor assembly and through fastening piece fixing with its on; Pump shaft is provided with sliding bearing outward, and its bearing shell is located in the pump cover frame, and this pump cover frame one end inboard is movably connected through choma and impeller; The outside is stuck on the pump cover; The other end of this pump cover links to each other through fastening piece with separation sleeve, between separation sleeve and link press span, is provided with the outer magnet rotor assembly corresponding with interior magnet rotor assembly, and this outer magnet rotor assembly links to each other through fastening piece with live axle; It is characterized in that: be respectively equipped with permanent magnet in the axle sleeve of sliding bearing and the bearing shell; And their adjacent magnetic poles are identical, promptly in axle sleeve and bearing shell, be inlaid with the cylindrical permanent-magnet body with the sliding bearing coaxial line respectively, and the adjacent magnetic pole of two permanent magnets are that axle sleeve permanent magnet outer ring surface is identical with the inner ring surface magnetic pole of bearing shell permanent magnet.
2. the magnetic drive pump of establishing the magneto bearing in a kind of according to claim 1, it is characterized in that: in the axle sleeve part relative with bearing shell, promptly the inner ring surface of axle sleeve permanent magnet outer ring surface and bearing shell permanent magnet is provided with wear-resisting pottery or alloy material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200798319U CN202520570U (en) | 2012-03-06 | 2012-03-06 | Magnetic drive pump with built-in permanent magnet bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200798319U CN202520570U (en) | 2012-03-06 | 2012-03-06 | Magnetic drive pump with built-in permanent magnet bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520570U true CN202520570U (en) | 2012-11-07 |
Family
ID=47103522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200798319U Expired - Fee Related CN202520570U (en) | 2012-03-06 | 2012-03-06 | Magnetic drive pump with built-in permanent magnet bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520570U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100878A (en) * | 2017-05-02 | 2017-08-29 | 浙江腾宇泵阀设备有限公司 | A kind of magnetic drive pump with magnetic suspension bearing |
| CN114427537A (en) * | 2022-01-20 | 2022-05-03 | 江苏冠裕流体设备有限公司 | Permanent magnet variable frequency synchronous liquid pumping device and assembling process thereof |
-
2012
- 2012-03-06 CN CN2012200798319U patent/CN202520570U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100878A (en) * | 2017-05-02 | 2017-08-29 | 浙江腾宇泵阀设备有限公司 | A kind of magnetic drive pump with magnetic suspension bearing |
| CN107100878B (en) * | 2017-05-02 | 2023-09-01 | 浙江腾宇泵阀设备有限公司 | Magnetic pump with magnetic suspension bearing |
| CN114427537A (en) * | 2022-01-20 | 2022-05-03 | 江苏冠裕流体设备有限公司 | Permanent magnet variable frequency synchronous liquid pumping device and assembling process thereof |
| CN114427537B (en) * | 2022-01-20 | 2023-12-22 | 江苏冠裕流体设备有限公司 | Permanent magnet variable-frequency synchronous liquid pumping device and assembly process thereof |
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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: 20121107 Termination date: 20150306 |
|
| EXPY | Termination of patent right or utility model |