CN2561756Y - Maximum value indicator for electric magnets of crane - Google Patents
Maximum value indicator for electric magnets of crane Download PDFInfo
- Publication number
- CN2561756Y CN2561756Y CN 02265732 CN02265732U CN2561756Y CN 2561756 Y CN2561756 Y CN 2561756Y CN 02265732 CN02265732 CN 02265732 CN 02265732 U CN02265732 U CN 02265732U CN 2561756 Y CN2561756 Y CN 2561756Y
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- CN
- China
- Prior art keywords
- maxim
- magnetizes
- lifting electromagnet
- lifting
- suggestion device
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- Expired - Lifetime
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Abstract
A magnetizing maximum value prompt device of a lifting magnet is used for the control of electromagnetic lifting, including a magnetizing maximum value detection part, a time controller and a prompt part which are connected sequentially in a circuit; the magnetizing maximum value detection part includes a magnetic conductive metal frame, the upper part thereof is provided with a through hole, the lower part thereof and the lifting magnet body can be detachably connected; a magnetic conductive regulating part penetrates the through hole; a non-magnetic conductive thermal insulation lining pad for isolation is fixed above the lower part of the frame; and a Hall magnetic-sensitive sensor is fixed above the lining pad for isolation and is just opposite to the end part of the regulating part. The prompt device greatly improves the lifting efficiency and the safety performance.
Description
Technical field
The utility model relates to hoisting crane, particularly relates to the electromagnetism lifting.
Background technology
It is that iron pan is inhaled in the electromagnetism lifting that iron and steel enterprise is used for the loading and unloading handling mobile device of ingot iron bar, crop, steel scrap etc. most popular.The absorption tonnage scope that iron pan is inhaled in the electromagnetism lifting is the 1--20 ton.The lifting electromagnet of prior art behind the closed starting switch of work beginning, generally all be by operating personal roughly estimated time be the pull-up electromagnet, unload through handling and drop on ground or the transport trolley.
Because lifting electromagnet is equivalent to a big inductance and inductance energising after-current can not suddenly change, the principle that needs a time delay is similar, and lifting electromagnet needs one and magnetizes the phase, is generally 3-5 second.Just be not eager to lift by crane if lifting electromagnet reaches magnetic saturation, the just utilization fully of crane capacity to electromagnet is certain to influence lifting efficient, also can not reach the generation that predicted value causes the accident owing to the crane capacity of electromagnet sometimes in lifting.If instead lifting electromagnet the unloading phase time waiting long, it is excessive also not all right to magnetize.This be since lifting electromagnet the unloading phase programming control be to use high-voltage large current, magnetize and excessively can quicken the electromagnet heating, and can have a strong impact on the life-span of lifting electromagnet.And operating personal can also can be subjected to the influence of emotional factor, thereby this artificial reading the clock mode can't accurately be estimated the lifting time because frequent operation or working time grow and weaken to the estimated capacity of time.So time control that retry must have strictness that rises for lifting electromagnet.
Summary of the invention
The purpose of this utility model is to provide a kind of direct device that the magnetic saturation of lifting electromagnet is detected and points out, and can make full use of the crane capacity of lifting electromagnet, increases the work efficiency that uses lifting electromagnet, the generation of minimizing accident.
Substantially be envisioned for: detect the magnetic strength maxim by the hall magnetic sensor that is close to lifting electromagnet, and produce an energizing signal, remove trigger delayer by this energizing signal again, and the synchronous triggering acousto-optic hint, the cable that this moment, operating personal should the be strained lifting electromagnet rapidly lifting shape of preparing.Delay number finishes the back acousto-optic hint and also finishes, and operating personal should lift by crane the lifting lifting electromagnet rapidly and make mobile lifting job at this moment.
The technical solution of the utility model is achieved in that
Be included in the circuit successively bonded assembly one magnetize maxim detection part, paragraph controller and for the moment
The prompting parts.
The described maxim detection part that magnetizes comprises again:
One magnetic conductive metal framework, its top has through hole, and the bottom becomes detachable with the lifting electromagnet body
Connect
Connect;
One magnetic conduction regulating part passes described through hole;
One isolates the non-magnetic conduction insulation blanket of usefulness, is fixed in top, framework bottom; And
One hall magnetic sensor is fixed in described isolation with above the liner, and over against described regulating part.
Described prompting parts are auditory tone cues parts or light prompting parts or both combinations.
Paragraph controller or can connect the R/G of two time control sections when paragraph controller is able to programme when described.
Through above-mentioned improvement, forcibly point out with the standard operation personnel and control lifting electromagnet effectively beginning the stage of magnetizing.There has been the magnetic strength that begins the stage of magnetizing to guarantee, could have guaranteed the lifting efficient of whole overall process.Thereby the lifting characteristic of lifting electromagnet improves, and lifting efficient and safety performance improve greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is electric control theory figure of the present utility model.The number in the figure explanation
1 framework
2 adjusting metal bolts
3 fixedly use metal bolts
4 hall magnetic sensors
41 power supply anodes
42 power supply negative terminals
43 mouths
5 liners
6 lifting electromagnet bodies
7 paragraph controllers when able to programme
71 working power input ends
72 working power input ends
73 working power input ends
74 mouths
75 power supply anodes
76 power supply negative terminals
77 control ends
The specific embodiment
Provide better embodiment of the utility model according to Fig. 1 and Fig. 2 below, and described in detail, enable to understand better architectural feature of the present utility model and function, characteristics.
See also Fig. 1 and Fig. 2, as shown in the figure, the lifting electromagnet maxim prompting device of present embodiment mainly comprises electric controling part and the maxim detection part that magnetizes.Electric controling part mainly contains relay, paragraph controller 7 and prompting parts when able to programme.The maxim that magnetizes detection part mainly contains metal frame 1, regulates with metal bolts 2, and is fixing with metal bolts 3, hall magnetic sensor 4 and liner 5.Wherein: metal frame 1 is made for permeability magnetic material, be positioned at the lifting electromagnet body above, the upper and lower is the horizontal metal plate that is parallel to each other, between use with both vertical metal sheets and be connected.Metal frame 1 bottom is used to fix with lifting electromagnet body 6 and is connected with metal bolts 3, is connected with the horizontal liner 5 of a bakelite on it.The hall magnetic sensor 4 of captive joint one Access Control circuit on the horizontal liner 5 of bakelite.Have a tapped bore in the middle of the metal frame 1 upper level metal sheet, one adjusting is passed tapped bore with bolt 2, and hole employing screw thread fit is regulated the distance between bolt 2 and the hall magnetic sensor 4, the magnetic flow of hall magnetic sensor 4 is changed, thereby make hall magnetic sensor 4 in the lifting electromagnet triggering of overturning immediately during towards the magnetic maxim.Relay constitutes the loop in the K4 back of closing with control power supply BA, BB, makes relay K 2 contacts, the while adhesive of relay K 1 contact of relay, and circuit is started working.Paragraph controller 7 models are DHC6 when able to programme.71 ends of paragraph controller 7,72 ends and 73 ends are the working power input end when able to programme, and 74 ends are mouth, and 77 ends are control end.71 ends link to each other with 72 ends.Exit 75,76 provides the power supply of hall magnetic sensor.The hall magnetic sensor model is UGN3020, and its 41 end is a power positive end, connects 75 ends of paragraph controller 7 when able to programme, and 42 ends are power supply negative terminals, connects 76 ends of paragraph controller 7 when able to programme.43 ends of hall magnetic sensor are mouths, when the setting magnetic strength of lifting electromagnet makes the hall magnetic sensor conducting, the mouth 43 of hall magnetic sensor becomes active potential by high potential, active potential impels the emitter and collector conducting of aerotron BG to make that the control end 77 of paragraph controller 7 obtains high potential when able to programme, paragraph controller 7 is started working when able to programme thus, and buzzer phone B relay, indicator lamp W send acousto-optic hint simultaneously.After the time delay that paragraph controller 7 is provided with when able to programme arrived, mouth 74 was closed in paragraph controller 7 inside when able to programme, and acousto-optic hint is finished.When lifting electromagnet promote, move, this circuit after the starting switch K4 of lifting electromagnet disconnects, enters next the circulation all at " locking " state again during other cycle of operations such as discharging.
In order to ensure the smooth implementation of control circuit, in control circuit, also added the wire fuse RW of power supply; And pizo-resistance PTC, the two ends that are connected in parallel on power supply reach disturbance rejection and protective effect to absorb the high pressure crest in the electrical network.
The lifting electromagnet of present embodiment magnetizes after the maxim prompting device adds lifting electromagnet, and the hoisting heavy process is as follows:
Operating personal control lifting electromagnet is opened starting switch K4 near the weight that needs lifting, and relay promptly constitutes the loop with control power supply BA, BB, makes relay K 2 contacts, the while adhesive of relay K 1 contact of relay, and circuit is started working.This moment, the setting magnetic strength of lifting electromagnet made the hall magnetic sensor conducting, the mouth 43 of hall magnetic sensor becomes active potential by high potential, active potential impels the emitter and collector conducting of aerotron BG to make that the control end 77 of paragraph controller 7 obtains high potential when able to programme, paragraph controller 7 is started working when able to programme thus, buzzer phone B relay sends the sound simultaneously, and indicator lamp W is bright.The lifting cable of operating personal tension lifting electromagnet, the lifting shape of preparing.Warming-up exercise by the tension cable, can further make lifting electromagnet do the balance adjustment, owing to iron and steel further closely arrangement under the effect in magnetic field that the balance adjustment makes lifting electromagnet adsorb below again, consequently absorption is more, with the magnetic energy foot of electromagnet.After the time delay that paragraph controller 7 is provided with when able to programme arrived, mouth 74 was closed in paragraph controller 7 inside when able to programme, and indicator lamp W and buzzer phone are all stopped, and operating personal lifts by crane the lifting lifting electromagnet immediately and hangs high moving until discharging.Disconnect the starting switch K4 of lifting electromagnet at last, prepare to carry out next one circulation.
Since the utility model product has been installed, the lifting improved properties of lifting electromagnet, and lifting efficient and safety performance improve greatly.
Claims (9)
1. the lifting electromagnet maxim suggestion device that magnetizes is characterized in that, is included in the circuit successively bonded assembly one magnetize maxim detection part, paragraph controller and prompting parts for the moment.
2. the lifting electromagnet as claimed in claim 1 maxim suggestion device that magnetizes, it is further characterized in that the described maxim detection part that magnetizes comprises:
One magnetic conductive metal framework, its top has through hole, and the bottom becomes detachably to connect with the lifting electromagnet body
Connect;
One magnetic conduction regulating part passes described through hole;
One isolates the non-magnetic conduction insulation blanket of usefulness, is fixed in top, framework bottom; And
One hall magnetic sensor is fixed in described isolation with above the liner, and over against described regulating part.
3. the lifting electromagnet as claimed in claim 2 maxim suggestion device that magnetizes, it is further characterized in that described removably connecting used metal bolts.
4. the lifting electromagnet as claimed in claim 2 maxim suggestion device that magnetizes, it is further characterized in that described through hole is a tapped through hole.
5. the lifting electromagnet as claimed in claim 4 maxim suggestion device that magnetizes, it is further characterized in that described regulating part is the threaded connector of matching thread through hole.
6. the lifting electromagnet as claimed in claim 5 maxim suggestion device that magnetizes, it is further characterized in that described threaded connector is a metal bolts.
7. the lifting electromagnet as claimed in claim 1 maxim suggestion device that magnetizes, it is further characterized in that, paragraph controller when paragraph controller is able to programme when described.
8. the lifting electromagnet as claimed in claim 1 maxim suggestion device that magnetizes, it is further characterized in that paragraph controller is for connecting the R/G of two time control sections when described.
9. the lifting electromagnet as claimed in claim 1 maxim suggestion device that magnetizes, it is further characterized in that described prompting parts are auditory tone cues parts or light prompting parts or both combinations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02265732 CN2561756Y (en) | 2002-07-24 | 2002-07-24 | Maximum value indicator for electric magnets of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02265732 CN2561756Y (en) | 2002-07-24 | 2002-07-24 | Maximum value indicator for electric magnets of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2561756Y true CN2561756Y (en) | 2003-07-23 |
Family
ID=33731702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02265732 Expired - Lifetime CN2561756Y (en) | 2002-07-24 | 2002-07-24 | Maximum value indicator for electric magnets of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2561756Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836271B (en) * | 2007-08-10 | 2013-03-13 | Sgm台架股份公司 | Electromagnetic lifter for moving coils of hot-rolled steel and relevant operating method |
| WO2021157336A1 (en) * | 2020-02-03 | 2021-08-12 | コベルコ建機株式会社 | Notification system |
-
2002
- 2002-07-24 CN CN 02265732 patent/CN2561756Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836271B (en) * | 2007-08-10 | 2013-03-13 | Sgm台架股份公司 | Electromagnetic lifter for moving coils of hot-rolled steel and relevant operating method |
| WO2021157336A1 (en) * | 2020-02-03 | 2021-08-12 | コベルコ建機株式会社 | Notification system |
| EP4074645A4 (en) * | 2020-02-03 | 2023-06-28 | Kobelco Construction Machinery Co., Ltd. | Notification system |
| JP7415619B2 (en) | 2020-02-03 | 2024-01-17 | コベルコ建機株式会社 | Notification system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120724 Granted publication date: 20030723 |