CN108217415A - A kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck - Google Patents
A kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck Download PDFInfo
- Publication number
- CN108217415A CN108217415A CN201611149327.0A CN201611149327A CN108217415A CN 108217415 A CN108217415 A CN 108217415A CN 201611149327 A CN201611149327 A CN 201611149327A CN 108217415 A CN108217415 A CN 108217415A
- Authority
- CN
- China
- Prior art keywords
- magnet
- permanent
- yoke
- magnetic chuck
- leakage field
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
Abstract
The present invention relates to a kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck, including Acetabula device and signal supervisory instrument.The Acetabula device includes yoke, every magnet, permanent magnet, coil；The coil is nested in the permanent magnetism external surface, and is rotated with the permanent magnet in yoke inner surface with being formed in the range of 90 ° of circular cavity every magnet inner surface；The signal supervisory instrument includes Hall sensor, data collecting card, A/D converter, PC.The present apparatus detects the surplus magnetic leakage signal on permanent magnetic chuck surface by Hall sensor, the size of purpose control coil reverse current, can avoid permanent magnet demagnetized boundary the phenomenon that, so as to reduce the surplus leakage field of permanent magnetic chuck.
Description
Technical field
The present invention relates to lifting magnet devices, and in particular to a kind of refitting that leakage field phenomenon is remained based on reduction permanent magnetic chuck
It puts.
Background technology
It is very promising work before a project that the grinding of permanent magnetic lifting device, which makes internal disorder or usurp, high-coercive force, high remanent magnetism, high energy product
The fast development of permanent-magnet material so that permanent magnetic chuck instead of magnechuck, saves a large amount of electric energy, avoid completely
Sucker is during the ferromagnetic materials such as handling steel scrap because of power-off or the low generation safety accident of permanent magnet performance, at present permanent magnet hoisting
Device in the industrial production, plays positive effect.
But permanent magnet lifting device is when unloading steel scrap that there is also defects.First, the magnetic line of force penetrates magnetic separator and forms leakage
Magnetic causes hoisting suction cup adsorption iron filings to influence normal work；Second, permanent magnetic chuck is mainly by permanent magnet, mild steel and every magnetic
Material inlays composition, due to remanent magnetism phenomenon existing for mild steel magnetic hysteresis, easily adsorbs iron filings in magnetic pole surfaces, causes hoisting apparatus
Next time use when its magnetic force can be cut down, so as to cause attract weight loosely cause operation reliability and safety not
Good, this is a pendulum urgent problem in the field of business, although domestic had some solutions, effect is not very
It is good.
Therefore developing a permanent magnetic lifting device for reducing surplus leakage field phenomenon in the market is very important.
Invention content
The main object of the present invention is to provide a kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck, the present invention
It can realize the surplus leakage field for reducing permanent magnetic chuck, and permanent magnet can be avoided to move back by the reverse current of Hall sensor control coil
Ci Guo circle.
In order to achieve the above objectives, the present invention takes following technical scheme：One kind remains leakage field phenomenon based on permanent magnetic chuck is reduced
Hoisting apparatus include Acetabula device and signal supervisory instrument；The Acetabula device includes yoke, every magnet, permanent magnet, coil；
The yoke totally two, including left yoke, right yoke, and symmetrical distribution；It is described every magnet totally two, every magnetic including on
Body, under every magnet, and in up and down distribution；The yoke inner surface every magnet inner surface with forming circular cavity；The coil packet
It is rolled in permanent magnetism external surface, and is rotated in the range of 90 ° of circular cavity with the permanent magnet.
Wherein, the signal supervisory instrument includes Hall sensor, data collecting card, A/D converter, PC.
The advantage of the invention is that：Sucker lower surface sets Hall sensor to detect surplus magnetic leakage signal, when permanent magnet and
Coil rotates 90 °, and close to when magnet, linear straight-adjustable galvanic electricity is reversely led to coil.By surplus magnetic leakage signal acquisition conversion with
Reverse current size is controlled, achieve the purpose that reduce the surplus leakage field of sucker magnetic pole surfaces and permanent magnet is avoided to demagnetize boundary.
Description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing.
With reference to Fig. 1 the present invention provides a kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck, feature exists
In：Including Acetabula device and signal supervisory instrument；The Acetabula device includes yoke（1）, every magnet（3）, permanent magnet（4）, line
Circle（2）；The yoke（1）Totally two, including left yoke（11）, right yoke（12）, and symmetrical distribution；It is described every magnet
（3）Totally two, every magnet including on（31）, under every magnet（32）, and in distribution up and down；The yoke（1）Inner surface with every magnetic
Body（3）Inner surface forms circular cavity；The coil（2）It is wrapped in permanent magnet（4）Outer surface, and with the permanent magnet（4）
It is rotated in the range of 90 ° of circular cavity.
The signal supervisory instrument includes Hall sensor with reference to described in Fig. 1（6）, data collecting card（7）, A/D converter
（8）, PC（9）.
The operation principle of the present invention is as follows：Work as permanent magnet（4）And coil（2）When going to 90 ° of positions, permanent magnet（4）It generates
Most of magnetic flux by every magnet（3）It blocks, therefore steel scrap（5）Chuck surface is detached to be unloaded.In order to unload chuck surface
Iron filings, for coil（2）Certain reverse dc is passed to, makes the electromagnetic field that it is generated to offset the big of sucker magnetic pole strength
The surplus leakage field in part.Simultaneously using Hall sensor（6）The surplus leakage field size of detection, passes through data collecting card（7）Receive surplus leakage field letter
Number, through A/D converter（8）Surplus magnetic leakage signal is imported PC by conversion（9）On interface, realize the size of control reverse current, avoid
The influence that boundary causes it reversely to magnetize is crossed in permanent magnet demagnetization.
The foregoing is merely the preferred embodiment of the present invention, not thereby limit the patent of the present invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other correlation necks
Domain is included within the scope of the present invention.
Claims (2)
1. a kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck, it is characterised in that：Including Acetabula device and signal
Detection device；The Acetabula device includes yoke, every magnet, permanent magnet, coil；The yoke totally two, including left yoke, the right side
Yoke, and symmetrical distribution；It is described every magnet totally two, including on every magnet, under every magnet, and in distribution up and down；Institute
Yoke inner surface is stated with forming circular cavity every magnet inner surface；The coil is wrapped in permanent magnetism external surface, and with it is described forever
Magnet rotates in the range of 90 ° of circular cavity.
2. a kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck according to claim 1, it is characterised in that：
The signal supervisory instrument includes Hall sensor, data collecting card, A/D converter, PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611149327.0A CN108217415A (en) | 2016-12-14 | 2016-12-14 | A kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611149327.0A CN108217415A (en) | 2016-12-14 | 2016-12-14 | A kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108217415A true CN108217415A (en) | 2018-06-29 |
Family
ID=62638090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611149327.0A Pending CN108217415A (en) | 2016-12-14 | 2016-12-14 | A kind of hoisting apparatus that leakage field phenomenon is remained based on reduction permanent magnetic chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108217415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075195A (en) * | 2022-05-13 | 2022-09-20 | 上海理工大学 | Electric control permanent magnet mooring system for wharf |
-
2016
- 2016-12-14 CN CN201611149327.0A patent/CN108217415A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075195A (en) * | 2022-05-13 | 2022-09-20 | 上海理工大学 | Electric control permanent magnet mooring system for wharf |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |
|
| WD01 | Invention patent application deemed withdrawn after publication |