CN2037359U - High-temperature crane electromagnet - Google Patents
High-temperature crane electromagnet Download PDFInfo
- Publication number
- CN2037359U CN2037359U CN 88209428 CN88209428U CN2037359U CN 2037359 U CN2037359 U CN 2037359U CN 88209428 CN88209428 CN 88209428 CN 88209428 U CN88209428 U CN 88209428U CN 2037359 U CN2037359 U CN 2037359U
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- CN
- China
- Prior art keywords
- magnetic
- electromagnet
- cooled type
- type lifting
- coil
- 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.)
- Withdrawn
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Abstract
The utility model relates to a high temperature lifting electromagnet, which is an improvement of the existing high temperature lifting electromagnet. So far, forcedly air-cooled type lifting electromagnets or natural air-cooled type lifting electromagnets can carry out effective heat rejection by utilizing a structure of an inner magnetic pole with a cooling air casing, but the forcedly air-cooled type lifting electromagnets and the natural air-cooled type lifting electromagnets have a common defect that vents which are arranged at magnetic yokes can affect the areas of magnetic circuits to reduce, and the magnetic force can be reduced. The utility model adopts the method that the thickness of a part of the magnetic circuit of the magnetic yoke is enlarged, so the loss of opening a vent is compensated.
Description
Existing lifting electromagnet for prevent coil 4 unlikely be subjected to temperatures involved and burn, mainly be to adopt high-grade insulating materials high temperature resistant, that coefficient of thermal conductivity is low to protect coil.Although the service life of high temperature lifting electromagnet is still very low so.
Though occurred adopting internal magnetic pole stem stem 9 bands to cool off the way of the ventilation and heat of air-casings 8 in recent years, improve " environment " of lifting electromagnet coil, reduce the degree of heat of coil, to prolong the life-span of lifting electromagnet.When but opening breather port 2 at yoke 3 places, hole Ruo Kaide is very few, can influence its ventilation cooling performance.But hole Ruo Kaide is too much, then will definitely reduce the magnetic circuit sectional area, increases the magnetic resistance and the reduction that influences magnetic flow and suction at this place.
In order to solve above-mentioned contradiction, the utility model purpose is to propose to increase this to locate the thickness 1 of local magnetic circuit, opens the electromagnet structure of breather port 2 losses with compensation.
Open the thickness δ of the local magnetic circuit in breather port place in order to increase magnetic, can utilize following formula to calculate, and can adopt steel plate Combination Welding (as the accompanying drawing example) or as cast way to realize it.
For square type electromagnet, suppose that the thickness at original yoke breather port place is B, the diameter of breather port is d, the hole count of a side is N, and the thickness of thickening is δ, length is L, then has:
BL＝（B＋δ）（L－Nd）
BL＝B（L－Nd）＋δ（L－Nd）
δ＝ (BNd)/(L－Nd) ……（1）
For the collar plate shape electromagnet, suppose that it is B that yoke is opened the thickness at breather port place, the diameter of breather port is d, and hole count is N, and the thickness of thickening is δ, and the diameter of the circumference of uniform breather port is D, then has:
BπD＝B（πD－Nd）＋δ（πD－Nd）
δ＝ (BNd)/(πD－Nd) ……（2）
Fig. 1 is the utility model structure master cutaway view.
Fig. 2 is the utility model structure birds-eye view.
Parts are among the figure: 1, yoke thickens plate 2, breather port 3, yoke 4, coil 5, outer magnetic pole 6, filler 7, the outer utmost point palm 8, cooling air-casing 9, internal magnetic pole stem stem 10, inner polar palm 11, the coil sealing utmost point 12, non-magnetic guard plate.
Claims (1)
- The high temperature lifting electromagnet, form by coil, yoke, outer magnetic pole, internal magnetic pole stem stem, outer utmost point palm inner polar palm, coil closing plate and non-magnetic guard plate, the cold gas nested structure is housed between coil and internal magnetic pole stem stem and on yoke position cooresponding, has breather port and lead to the electromagnet upper surface, it is characterized in that: open the local magnetic circuit thickening in breather port place at the electromagnet upper surface with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209428 CN2037359U (en) | 1988-08-07 | 1988-08-07 | High-temperature crane electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209428 CN2037359U (en) | 1988-08-07 | 1988-08-07 | High-temperature crane electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2037359U true CN2037359U (en) | 1989-05-10 |
Family
ID=4843078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88209428 Withdrawn CN2037359U (en) | 1988-08-07 | 1988-08-07 | High-temperature crane electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2037359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106458530A (en) * | 2014-06-20 | 2017-02-22 | Sgm台架股份公司 | Electromagnetic lifter for hot materials |
-
1988
- 1988-08-07 CN CN 88209428 patent/CN2037359U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106458530A (en) * | 2014-06-20 | 2017-02-22 | Sgm台架股份公司 | Electromagnetic lifter for hot materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |