CN101846094B - Magnetic centrifugal pump - Google Patents
Magnetic centrifugal pump Download PDFInfo
- Publication number
- CN101846094B CN101846094B CN2010101909780A CN201010190978A CN101846094B CN 101846094 B CN101846094 B CN 101846094B CN 2010101909780 A CN2010101909780 A CN 2010101909780A CN 201010190978 A CN201010190978 A CN 201010190978A CN 101846094 B CN101846094 B CN 101846094B
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- CN
- China
- Prior art keywords
- section
- cross
- drive shaft
- centrifugal pump
- live axle
- 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 invention relates to a magnetic centrifugal pump, which comprises a drive shaft (1) and an outer magnetic steel (2) which is connected with the drive shaft (1), wherein the right end of the drive shaft (1) is provided with a scalariform which is formed by a first step section (4) and a second step section (3), wherein the cross section of one of the first step section (4) and the second step section (3) is of a circular shape, the cross section of another section is of a polygonal shape, and the left end of the outer magnetic steel (2) is sleeved on the right end of the drive shaft (1) and is provided with a cross section which is matched with the first step section (4) and the second step section (3). The front end of the drive shaft in the magnetic centrifugal pump is processed into a structure with circular front and square back, and the left end of the outer magnetic steel is sleeved on the right end of the drive shaft and is processed into a structure with square exterior and circular interior; a central circle positioning is realized, so the concentricity is improved. With the outer hexagonal driving, the stress is uniform, so the concentricity of the outer magnetic steel and the drive shaft is improved, and the stable and vibration-free state is realized.
Description
Technical field
The present invention relates to chemical machinery field, relates to a kind of magnetic centrifugal pump specifically.
Background technique
Growing and the continuous progress in science and technology along with chemical machinery; Requirement to chemical centrifugal pump is also increasingly high, and totally-enclosed magnetic pump is the higher relatively special equipment of latest model, practicability in known technology, but the magnetic centrifugal pump live axle is connected thin with outer magnetic; Positioning hole is tiny; The concentricity stability of the outer magnetic structure of cantilever is relatively poor always, cause outer magnetic vibration to cause often wearing and tearing in a short time of separation sleeve, thereby the damage of driving bearing case causes complete machine all to be scrapped.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned existing technology, a kind of magnetic centrifugal pump be provided, solved the magnetic centrifugal pump live axle be connected with outer steel thin, the problem of the concentricity less stable of the outer magnetic structure of cantilever.
In order to achieve the above object; The invention a kind of magnetic centrifugal pump is provided, comprise live axle and the outer steel that is connected with live axle, the right-hand member of live axle have by the first ladder section and the second ladder section constitute stepped; The first ladder section and the second ladder section wherein one section cross section are circular; The cross section of another section is a polygonal, and the left end of outer steel is enclosed within the right-hand member of live axle, and has the cross section of matching with the first ladder section and the second ladder section.
The cross section of the first ladder section is a polygonal for the cross section of circular and the said second ladder section, and perhaps, the cross section of the first ladder section is that the cross section of polygonal and the said second ladder section is circle.
Above-mentioned polygonal can be Hexagon.
Live axle is that bolt is connected with the Placement of outer steel.
Circle rear structure before live axle front end in the magnetic centrifugal pump of the present invention is processed as, the outer steel left end is enclosed within the live axle right-hand member, presses square-outside and round-inside processing; Constituted the center circle location, improved concentricity, outer-hexagonal drives, and is stressed even, thereby improved the concentricity of outer steel and live axle, reaches steady friction state.
Description of drawings
Fig. 1 is the structural representation of magnetic centrifugal pump live axle of the present invention and outer steel joint.
Mark among the figure: 1, live axle; 2, outer steel; 3, the second ladder section; 4, the first ladder section.
Embodiment
As shown in Figure 1; The first ladder section 4 of live axle 1 right-hand member is processed into circle; The second ladder section 3 is processed into Hexagon, and outer steel 2 left ends are enclosed within the right-hand member of live axle 1, and processes the cross section of matching with the first ladder section 4 and the second ladder section 3; Shaft center is beaten tapped hole, with hexagon socket head cap screw live axle 1 is connected with outer steel.
Claims (4)
1. magnetic centrifugal pump; Comprise live axle (1) and the outer steel (2) that flexibly connects with said live axle (1); It is characterized in that; The right-hand member of said live axle (1) have by the first ladder section (4) and the second ladder section (3) constitute stepped, the said first ladder section (4) and the said second ladder section (3) wherein one section cross section are circle, the cross section of another section is a polygonal; The left end of said outer steel (2) is enclosed within the right-hand member of said live axle (1), and has the cross section of matching with said first ladder section (4) and the said second ladder section (3).
2. centrifugal pump as claimed in claim 1 is characterized in that, the cross section of the said first ladder section (4) is circular, and the cross section of the said second ladder section (3) is a polygonal.
3. centrifugal pump as claimed in claim 1 is characterized in that, the cross section of the said first ladder section (4) is a polygonal, and the cross section of the said second ladder section (3) is circular.
4. like claim 1 or 2 or 3 described centrifugal pumps, it is characterized in that said polygonal is a Hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101909780A CN101846094B (en) | 2010-06-03 | 2010-06-03 | Magnetic centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101909780A CN101846094B (en) | 2010-06-03 | 2010-06-03 | Magnetic centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101846094A CN101846094A (en) | 2010-09-29 |
| CN101846094B true CN101846094B (en) | 2012-08-22 |
Family
ID=42770849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101909780A Expired - Fee Related CN101846094B (en) | 2010-06-03 | 2010-06-03 | Magnetic centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101846094B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928369A (en) * | 2006-10-20 | 2007-03-14 | 蔡国华 | Magnetic centrifugal pump |
| CN101657643A (en) * | 2007-03-20 | 2010-02-24 | 欧瑞康纺织有限及两合公司 | Gear pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20312292U1 (en) * | 2003-08-05 | 2003-11-13 | Ksb Ag | Flow machine, especially centrifugal pump, with magnetic coupling drive has hysteresis coupling between drive motor in form of asynchronous three-phase motor and flow machine |
| JP4197286B2 (en) * | 2003-09-16 | 2008-12-17 | 愛三工業株式会社 | Rotating shaft of rotating body and manufacturing method thereof |
| JP2005256822A (en) * | 2004-03-15 | 2005-09-22 | Nidec Shibaura Corp | Mounting structure of rotary member |
| CN2864200Y (en) * | 2005-08-19 | 2007-01-31 | 杨和平 | Axle neck for mounting large-scale rolling bearing |
| CN100494693C (en) * | 2007-06-27 | 2009-06-03 | 丹东克隆集团有限责任公司 | High performance magnetic pump |
| CN201116532Y (en) * | 2007-08-23 | 2008-09-17 | 上海连成（集团）有限公司 | Bearing body applied for open-type impeller chemical pump |
| CN201757077U (en) * | 2010-06-03 | 2011-03-09 | 蓝星化工有限责任公司 | Magnetic centrifugal pump |
-
2010
- 2010-06-03 CN CN2010101909780A patent/CN101846094B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928369A (en) * | 2006-10-20 | 2007-03-14 | 蔡国华 | Magnetic centrifugal pump |
| CN101657643A (en) * | 2007-03-20 | 2010-02-24 | 欧瑞康纺织有限及两合公司 | Gear pump |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-256822A 2005.09.22 |
| JP特开2005-90587A 2005.04.07 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101846094A (en) | 2010-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20140603 |