CN2058668U - Parallel move lifting rare-earth permanent magnet - Google Patents
Parallel move lifting rare-earth permanent magnet Download PDFInfo
- Publication number
- CN2058668U CN2058668U CN 89209146 CN89209146U CN2058668U CN 2058668 U CN2058668 U CN 2058668U CN 89209146 CN89209146 CN 89209146 CN 89209146 U CN89209146 U CN 89209146U CN 2058668 U CN2058668 U CN 2058668U
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- CN
- China
- Prior art keywords
- permanent magnet
- magnetic
- rare
- earth permanent
- sucked
- 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.)
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model discloses a new lifting rare-earth permanent magnet, which makes use of a magnetic field superposition principle to design intelligently a magnetic circuit into the upper and the lower two magnetic system with identical structural forms. The upper magnetic system is driven by a driving device to move in parallel for loading weight and unloading weight. The suction force of the permanent magnet satisfies the requirements of maximal lifting cranes. Iron filings are not sucked by a working magnetic yoke, and therefore, the sucked objects are sucked firmly, so the working is safe. The sucked objects can be unloaded without other mechanisms, so cost can be reduced.
Description
Technical field of hoisting equipment under the utility model.
The hoisting permanent magnet of producing has reinforcement five to defend the strontium calcium ferrite hoisting permanent magnet and the excitatory hoisting permanent magnet that increases and decreases magnetic-field intensity of pulse of mechanism both at home and abroad.Their common shortcomings are that the weight of lifting is less, and the magnetic-field intensity when laying down weight and picking up weight is constant and change little.Suct a large amount of iron filings in work easily on the yoke like this, not only cause and inhale great amount and reduce, and attract that weight is not firm to cause permanent magnet functional reliability and safety bad, safety misadventure takes place easily.
Purpose of the present invention overcomes the above-mentioned shortcoming of existing hoisting permanent magnet exactly, gives full play to the advantage of permanent magnet.By magnetic Circuit Design dexterously, can make permanent magnet when picking up and lay down weight, the work magnetic-field intensity doubles and hangs down to disappear.Thereby make it inhale Beijing South Maxpower Technology Co. Ltd's power increase and safe and reliable.
The main contents and the technical characterictic of parallel-moving type hoisting permanent magnet of the present invention are: the work magnetic-field intensity is bordering on null value when increasing hoisting permanent magnet and inhaling Beijing South Maxpower Technology Co. Ltd's power and lay down weight in order to reach (1), causes not suct iron filings in the work yoke and make it safe and reliable.Adopting the magnetic field superposition principle, is magnetic Circuit Design that two magnetic are up and down.Permanent magnet is picking up and is laying down when inhaling thing, and it is translation one unit composite permanent magnet width that last magnetic system descends magnetic relatively, is not subjected to the restriction of structure and principle and safe and reliable thereby the work magnetic-field intensity of reaching doubles or offset the increase that makes its suction Beijing South Maxpower Technology Co. Ltd power.
(2) system of two magnetic up and down of magnetic circuit closely links to each other by the identical unit composite permanent magnet of several structures and arranges and form.The magnet direction of magnetization in the adjacent cells composite permanent magnet is opposite.The unit composite permanent magnet is by nd-fe-b or 2:17 rare-earth permanent magnet and ingot iron or A
3The yoke that steel is done is formed.
(3) between the magnetic up and down of the magnetic circuit system several mm clearance are arranged, and the unit composite permanent magnet that last magnetic is is to Duo one than following magnetic, instantly each unit composite permanent magnet of magnetic system overlaps on upper-lower position with the corresponding unit composite permanent magnet that last magnetic is, when its direction of magnetization is identical or opposite, two magnetic system doubles the suction of inhaling thing or disappears mutually.
Parallel-moving type rare earth permanent magnet hoisting permanent magnet of the present invention compared with prior art, the advantage that is had is that its inhales the heavy load-carrying ability that is not subjected to its structural principle restriction can reach any large tonnage crane.Owing to adopt the magnetic field superposition principle, institute of the two magnetic system work magnetic-field intensity that produces doubles inhaling when weighing up and down, is null value when laying down the suction thing.So when laying down the suction thing, do not inhale on the work yoke iron filings arranged.So just can make the solid and reliable weight that holds of permanent magnet, accomplish safe and reliable.Owing to form magnetic circuit by two magnetic systems up and down, magnet is used the rare-earth permanent magnets such as nd-fe-b of high magnetic energy and high-coercive force again again, so designed permanent magnet degree of utilization height, volume is little, and the life-span is long, and is easy to use, safe and reliable, cost-cutting.
Fig. 1 is a parallel-moving type rare earth permanent magnet hoisting permanent magnet structural representation
1 is actuating device, and 2 is housing, and 3 is magnetic circuit
Fig. 2 is the magnetic structure scheme drawing of parallel-moving type rare earth permanent magnet hoisting permanent magnet
(a) be that last magnetic system (b) is that magnetic is down, ↑ be the direction of magnetization of magnet, 4 is yoke, 5 is rare-earth permanent magnet.
Claims (4)
1, by actuating device, the parallel-moving type rare earth permanent magnet hoisting permanent magnet that housing and magnetic circuit are formed, it is characterized in that its magnetic circuit comprises by essentially identical two the magnetic systems up and down of version, two magnetic systems are respectively by some identical unit adjacent magnetic reversals of composite permanent magnet and are formed, and last magnetic is to be the parallel width that moves the one unit composite permanent magnet relative to following magnetic.
2,, it is characterized in that the unit composite permanent magnet is to be placed with by ingot iron or A by rare-earth permanent magnet with on two end faces perpendicular to the rare-earth permanent magnet direction of magnetization according to the described hoisting permanent magnet of claim 1
3Yoke that steel is made is formed.
3,, it is characterized in that the rare-earth permanent magnet in the unit composite permanent magnet is a Fe-B rare-earth permanent magnet according to the described hoisting permanent magnet of claim 1.
4,, it is characterized in that the rare-earth permanent magnet in the unit composite permanent magnet is the 2:17 rare-earth permanent magnet according to the described hoisting permanent magnet of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209146 CN2058668U (en) | 1989-07-04 | 1989-07-04 | Parallel move lifting rare-earth permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209146 CN2058668U (en) | 1989-07-04 | 1989-07-04 | Parallel move lifting rare-earth permanent magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2058668U true CN2058668U (en) | 1990-06-27 |
Family
ID=4865718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89209146 Withdrawn CN2058668U (en) | 1989-07-04 | 1989-07-04 | Parallel move lifting rare-earth permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2058668U (en) |
-
1989
- 1989-07-04 CN CN 89209146 patent/CN2058668U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: HE JINGCHEN TO: SCIENCE + TECH DEVELOPMENT AND RESEARCH CENTER OF COLLEGESAND UNIVERSITIES OF JILIN PROVINCE |
|
| CP03 | Change of name, title or address |
Address after: No. 115 Stalin street, Jilin, Changchun Patentee after: Scientific and Technical Development Research Centre, Jilin Colleges and Univers Address before: No. 11, 104 street, MTR East, Liaoning, Anshan Patentee before: He Jingchen |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |