CN102042303A - High-speed active controlled magnetic suspension bearing main shaft - Google Patents
High-speed active controlled magnetic suspension bearing main shaft Download PDFInfo
- Publication number
- CN102042303A CN102042303A CN2009100358631A CN200910035863A CN102042303A CN 102042303 A CN102042303 A CN 102042303A CN 2009100358631 A CN2009100358631 A CN 2009100358631A CN 200910035863 A CN200910035863 A CN 200910035863A CN 102042303 A CN102042303 A CN 102042303A
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- Prior art keywords
- main shaft
- magnetic
- suspension bearing
- magnetic suspension
- electromagnet
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- 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.)
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- 239000000725 suspension Substances 0.000 title claims abstract description 17
- 230000005415 magnetization Effects 0.000 description 7
- 230000006698 induction Effects 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003050 axon Anatomy 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a high-speed active controlled magnetic suspension bearing main shaft, which consists of a magnetic conducting main shaft (1), axial magnetizing rings (2), electromagnets (3) and the like, wherein the two axial magnetizing rings (2) are sleeved on the magnetic conducting main shaft (1) and have opposite polarities; and the four electromagnets (3) are arranged on four sides of the magnetic conducting main shaft (1).
Description
Affiliated technical field
The present invention relates to a kind of high speed ACTIVE CONTROL magnetic suspension bearing main shaft, this main shaft is that a plurality of magnetic devices are installed on the magnetic conduction axon, makes main shaft itself from carrying magnetic, inhales with ACTIVE CONTROL electromagnetism iron phase, realizes the suspension of main shaft under the high speed rotating state.Belong to the magnetic levitation technology field.
Background technique
The aerial motion speed of electromagnetic wave is 300,000 kilometer per seconds, but magnet case is when being magnetized by electromagnetic wave, and its speed that magnetizes does not reach 300,000 kilometer per seconds certainly.Magnet case only is magnetized, and after the magnetization, just might produce suction with electromagnet.After magnet case main axis rotation speed surpassed the magnet case magnetizing velocity, the magnet case main shaft just can not be magnetized (reduction of magnetization efficient) fully, will influence and electromagnet between suction.The magnet case main shaft is when high speed rotating simultaneously, and its circumferential surface and the electromagnet magnetic line of force produce movement in vertical direction, and just cutting magnetic line can produce induction field, and this induction field also can influence the magnetizing velocity of magnetic conduction main shaft and fully magnetization.Strengthen the magnetic field of electromagnet in order to keep the state of suspension of main shaft this moment, and original idea is in order to improve the Suspension Control power of electromagnet to main shaft.But the electromagnetic field that strengthens can make the induction field of main shaft further increase, and also just further reduces the magnetizing velocity and the magnetization efficient of main shaft, and electromagnet is reduced the Suspension Control power of main shaft.So the whole world does not all have 100,000 rev/mins magnetic suspension motor.
Summary of the invention
Principle of the present invention is on the magnetic conduction main shaft magnetic devices to be installed, and makes the magnetic conduction main shaft be magnetized in advance, magnetize, and utilizes this main shaft that had magnetized then, inhales with ACTIVE CONTROL electromagnetism iron phase, the suspension after the realization electromagnet is inhaled mutually to main shaft.
Thisly magnetize, there are two kinds in the magnet ring mode, a kind of is the permanent magnetism mode, a kind of is electromagnetic mode.Utilize the permanent magnetism mode that the magnetic conduction main shaft is magnetized, magnetizes, have two kinds of discharge capacity forms; Utilize electromagnetism that the magnetic conduction main shaft is magnetized, magnetizes, also have two kinds of spread patterns.
Utilize the permanent magnetism mode that the magnetic conduction main shaft is magnetized, magnetizes, can not be subjected to the restriction of speed.But can be drawn onto on the electromagnet after the main shaft band magnetic.The way of dealing with problems is to utilize disturbing wave radial suspension bearing, stops main shaft to be drawn onto with electromagnet.
Utilize electromagnetism that the magnetic conduction main shaft is magnetized, magnetizes, main shaft did not have magnetic before rotation, produced magnetic after the rotation, can avoid like this inhaling together with electromagnet before rotation; But, can not determine after the high speed rotating that can power supply that main shaft carries or power generation system normal power supply owing to do not pass through high-speed test (HST).
Utilize said method, can both make the magnetic conduction main shaft after rotation, can not produce induction field.Realize that the stable ACTIVE CONTROL under the high speed rotating state suspends.
Description of drawings
Fig. 1 is the radial section tectonic maps of permanent magnetism symmetry magnetization high speed ACTIVE CONTROL magnetic suspension bearing main shaft of the present invention.
Fig. 2 is the radial section tectonic maps of the asymmetric magnetization high speed of permanent magnetism of the present invention ACTIVE CONTROL magnetic suspension bearing main shaft.
Fig. 3 is the radial section tectonic maps of electromagnetism symmetry magnetization high speed ACTIVE CONTROL magnetic suspension bearing main shaft of the present invention.
The present invention will be further described below in conjunction with accompanying drawing.
Among Fig. 1, magnetic conduction main shaft (1), axial charging magnet ring (2), electromagnet (3) etc.; Two axial charging magnet rings (2) are enclosed within on the magnetic conduction main shaft (1), and polarity is relative; Four electromagnet (3) be installed in magnetic conduction main shaft (1) around.
Among Fig. 2, an axial charging magnet ring (2) go up to be installed at magnetic conduction main shaft (1), four electromagnet (3) be installed in magnetic conduction main shaft (1) around.
Among Fig. 3, the two circles coil (2) that magnetizes go up to be installed, to be required after the energising at magnetic conduction main shaft (1), the electromagnetic field that two circle coils (2) produce is relative with extreme direction; Four electromagnet (3) be installed in magnetic conduction main shaft (1) around.
By that analogy, two circle coils among Fig. 3 can reduce one, become to have only a circle coil (2) to generate an electromagnetic field, and magnetic conduction main shaft (1) is magnetized.
The basis of above-mentioned design stems from the disturbing wave radial magnetic bearing, and through slow-speed test, the tentative confirmation magnet case just can not produce induction field after being magnetized.
Claims (3)
1. a high speed ACTIVE CONTROL magnetic suspension bearing main shaft is characterized in that: magnetic conduction main shaft (1), axial charging magnet ring (2), electromagnet (3) etc.; Two axial charging magnet rings (2) are enclosed within on the magnetic conduction main shaft (1), and polarity is relative; Four electromagnet (3) be installed in magnetic conduction main shaft (1) around.
2. high speed ACTIVE CONTROL magnetic suspension bearing main shaft according to claim 1, it is characterized in that: two axial charging magnet rings (2) can be reduced to one.
3. high-speed mixing magnetic suspension bearing according to claim 1 is characterized in that: two axial charging magnet rings (2) can both be obtained with the coil that produces electromagnetism; Simultaneously can reduce one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100358631A CN102042303A (en) | 2009-10-09 | 2009-10-09 | High-speed active controlled magnetic suspension bearing main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100358631A CN102042303A (en) | 2009-10-09 | 2009-10-09 | High-speed active controlled magnetic suspension bearing main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102042303A true CN102042303A (en) | 2011-05-04 |
Family
ID=43908732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100358631A Pending CN102042303A (en) | 2009-10-09 | 2009-10-09 | High-speed active controlled magnetic suspension bearing main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102042303A (en) |
-
2009
- 2009-10-09 CN CN2009100358631A patent/CN102042303A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110504 |