CN101159389A - Permanent-magnet motor for elevator traction machine - Google Patents
Permanent-magnet motor for elevator traction machine Download PDFInfo
- Publication number
- CN101159389A CN101159389A CNA2007101902756A CN200710190275A CN101159389A CN 101159389 A CN101159389 A CN 101159389A CN A2007101902756 A CNA2007101902756 A CN A2007101902756A CN 200710190275 A CN200710190275 A CN 200710190275A CN 101159389 A CN101159389 A CN 101159389A
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- permanent
- magnet
- permanent magnetic
- magnetic ferrite
- ferrite
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a component of an elevator tractor, in particular to a permanent magnet motor for the elevator tractor. The permanent magnet motor of the tractor comprises a rotor of a permanent magneto pole made of permanent magnetic ferrite. The invention has the advantages that: 1. the Curie temperature of the magnet is over 450 DEG C, which is enough to meet the requirement for operation temperature rise of the elevator tractor; 2. since the ferrite magnet material is an oxide, the magnet body can endure oxygen and corrosion, without need of surface treatment, and the magnet body can provide a permanent magnetic field; 3. as the raw material, the permanent magnetic ferrite is abundant and cheap. The essential ingredient of the permanent magnetic ferrite is ferroso-ferric oxide contained in waste residues and mill scales or liquid waste recovered from the acid washing liquid for billet. Compared with the traditional materials, such as the NdFeB, the permanent magnetic ferrite can save large quantities of rare earths resources; 4. during the manufacturing process, an electric machine rotor of the permanent magneto pole can be magnetized firstly and then installed. The permanent magneto pole can be fully magnetized and located accurately while the manufacturing process is simple and reliable.
Description
Technical field
The present invention relates to the parts of elevator traction machine, specifically is a kind of permanent-magnet motor for elevator traction machine.
Background technology
In the employed magneto of the traction machine of elevator industry, its rotor magnetic pole all adopts neodymium iron boron magnetic body, and neodymium iron boron magnetic body is a strong permanent magnet material, but from use angle, neodymium iron boron magnetic body has major hidden danger.One, about 180 degrees centigrade of the Curie temperature of neodymium iron boron magnetic body, promptly in the time of 180 degrees centigrade, neodymium iron boron magnetic body will demagnetize fully, and motor can't be worked.They are two years old, inevitably there is relatively poor relatively air atmosphere in the internal environment of elevator(lift) machine room, neodymium iron boron magnetic body is very easily oxidation exactly, the pulverize powder also loses magnetism fully, even there are protective coating or coating in the surface, also can can't completely cut off and oxidation deterioration fully with air because of the microcosmic capillary hole of coating or coating, oxidation rate was faster when especially air humidity was higher.In addition, because neodymium iron boron magnetic body magnetic field is strong, produce the method that must adopt first installing and locating to magnetize again when installing, magnetizing easily, unsaturated or magnetic pole departs from.
Summary of the invention
Technical problem to be solved by this invention provides a kind of stable performance, long service life, manufacturing is easy for installation, cost is low traction machine magneto.
Traction machine of the present invention comprises the rotor that permanent magnetism magnetic pole is installed with magneto, it is characterized in that: described permanent magnetism magnetic pole material is a ferrite permanent-magnet materials.
The present invention compares with traditional ndfeb magnetic pole owing to adopt ferrite as permanent magnetism magnetic pole, and its advantage applies exists: 1, the Curie temperature of magnet is enough to resist the work temperature rise requirement of elevator traction machine greater than 450 degrees centigrade; 2, ferrimagnet itself is exactly an oxide, and good non-oxidizability and corrosion resistance are arranged, and does not need surface treatment, and stable magnetic field forever is provided; 3, the abundant raw materials of ferrimagnet and cheapness mainly are di-iron trioxides, are the waste residue iron scale of steel rolling or the di-iron trioxide in the steel billet pickling recovery waste liquid, compare with traditional NdFeB material and can save a large amount of rare earth resources; 4, the rotor of ferrite magnetic pole can magnetize earlier in manufacture process and install, saturated magnetizing and accurate positioning, and manufacturing process is simple and reliable.
Description of drawings
Fig. 1 is the structural representation of traction machine of the present invention with stator, rotor and the permanent magnetism magnetic pole of magneto.
Embodiment
As shown in the figure, traction machine of the present invention comprises stator 1, rotor 2 and is installed in epitrochanterian permanent magnetism magnetic pole 3 that the material of permanent magnetism magnetic pole is a ferrite permanent-magnet materials with magneto.
Following table adopts the parameter comparison of the traction machine magneto of ndfeb magnetic pole with magneto embodiment and tradition for traction machine of the present invention:
| Pole material | Ferrite | Neodymium iron boron |
| Rated power | 7.9kw | ?7.9kw |
| Rated current | 16.9A | ?16.9A |
| Rated frequency | 25.6Hz | ?25.6Hz |
| Nominal load capacity | 1000kg | ?1000kg |
| Rated voltage | 334V | ?334V |
| Vibration | 51.2db | ?52.3db |
| Rated efficiency | 0.93 | ?0.915 |
| Useful life | More than 20 years | Be lower than 10 years |
| The machine operation temperature | 220 ℃ | ＜150 ℃ |
| Environmental suitability (humidity and sour gas) | Good, stable performance does not have influence | Difference, easily oxide etch loss of excitation rated power descends gradually |
| Manufacturing process | Simply, the location is reliable | Complexity, magnetic pole easily is shifted. |
Claims (1)
1. a traction machine magneto comprises the rotor that permanent magnetism magnetic pole is installed, and it is characterized in that: described permanent magnetism magnetic pole material is a ferrite permanent-magnet materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101902756A CN101159389A (en) | 2007-11-26 | 2007-11-26 | Permanent-magnet motor for elevator traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101902756A CN101159389A (en) | 2007-11-26 | 2007-11-26 | Permanent-magnet motor for elevator traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101159389A true CN101159389A (en) | 2008-04-09 |
Family
ID=39307357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101902756A Pending CN101159389A (en) | 2007-11-26 | 2007-11-26 | Permanent-magnet motor for elevator traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101159389A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11691851B2 (en) * | 2016-10-14 | 2023-07-04 | Inventio Ag | Linear drive system for an elevator installation |
-
2007
- 2007-11-26 CN CNA2007101902756A patent/CN101159389A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11691851B2 (en) * | 2016-10-14 | 2023-07-04 | Inventio Ag | Linear drive system for an elevator installation |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |