CN201395466Y - Power failure magnet keeping device for electromagnetic crane - Google Patents
Power failure magnet keeping device for electromagnetic crane Download PDFInfo
- Publication number
- CN201395466Y CN201395466Y CN2009200369881U CN200920036988U CN201395466Y CN 201395466 Y CN201395466 Y CN 201395466Y CN 2009200369881 U CN2009200369881 U CN 2009200369881U CN 200920036988 U CN200920036988 U CN 200920036988U CN 201395466 Y CN201395466 Y CN 201395466Y
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- China
- Prior art keywords
- switch
- electromagnet
- power failure
- leading
- cart
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a power failure magnet keeping device for an electromagnetic crane, aiming at providing the power failure magnet keeping device which can arrange a back up power supply tomaintain the short-term running of an electromagnet, a large cart, a small cart and a primary hook of the electromagnetic crane, place a hanged object at a safe position and prevent the accident thatthe hanged object falls off, and pertaining to the technical field of lifting equipment .The power failure magnet keeping device comprises an electromagnet, a rectification assembly, a storage batterybank, an inversion assembly, a switch K1, a switch K2 and a switch K3. The leading-in terminal of the switch K1 is connected with three-phase alternating current and the leading-out terminal thereofis respectively connected with the circuits of the big cart, the small cart and the primary hook, the leading-in terminal of the switch K2 and the input terminal of the rectification assembly; the output terminal of the rectification assembly passes through the switch K3 and is connected with the electromagnet which is connected with the storage battery bank; the storage battery bank is connectedwith the input terminal of the inversion assembly; and the output terminal of the inversion assembly is connected with the leading-out terminal of the switch K2. The power failure magnet keeping device can arrange the backup power supply of the storage battery during power failure to maintain the short-term running of the electromagnet, the large cart, the small cart and the primary hook of the electromagnetic crane.
Description
Technical field
The utility model relates to a kind of crane cut protection device, relates in particular to a kind of lifting magnet crane power failure and protects magnetic device, belongs to the weight-lifting equipment technical field.
Background technology
The lifting magnet crane of existing employing soft magnetism electromagnet, when lifting electromagnet was in running order, during as if chance grid power blackout or main rectifying circuit fault, the electromagnet loss of excitation can cause suspended object to drop, generation personnel or equipment breakdown.Therefore must transform the lifting magnet crane of existing employing soft magnetism electromagnet, avoid taking place to cause personnel or equipment breakdown because of the electromagnet loss of excitation.
The utility model content
The purpose of this utility model is to provide a kind of lifting magnet crane to have a power failure and protects magnetic device, when having a power failure, drop into backup power, the electromagnet of lifting magnet crane and cart, dolly, main hook are moved in short-term, suspended object is put into perch, the accident of avoiding suspended object to drop.
The purpose of this utility model is achieved by the following technical programs:
A kind of lifting magnet crane has a power failure and protects magnetic device, comprises electromagnet 1, rectifier stack 2, battery pack 3, inversion assembly 4, switch I K1, switch I I K2, switch I II K3.The end of incoming cables input three-phase alternating-current supply of described switch I K1, its leading-out terminal links to each other with big or small car owner's hook circuit, switch I I K2 end of incoming cables, rectifier stack 2 input ends respectively, rectifier stack 2 mouths link to each other with electromagnet 1 through switch I II K3, electromagnet 1 links to each other with battery pack 3, battery pack 3 links to each other with inversion assembly 4 input ends, and inversion assembly 4 mouths link to each other with switch I I K2 leading-out terminal.
Compared with prior art, the beneficial effects of the utility model are:
The utility model can drop into the storage battery backup power when having a power failure, storage battery is powered to electromagnet, accumulator direct current supply is reverse into three-phase alternating-current supply through the inversion assembly and supplies with cart, dolly, main hook simultaneously, the electromagnet of electromagnetic lifter and cart, dolly, main hook are moved in short-term, suspended object is put into perch, the accident of avoiding suspended object to drop.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, lifting magnet crane has a power failure and protects magnetic device, comprises electromagnet 1, rectifier stack 2, battery pack 3, inversion assembly 4, switch I K1, switch I I K2, switch I II K3.The end of incoming cables input three-phase alternating-current supply of described switch I K1, its leading-out terminal links to each other with big or small car owner's hook circuit, switch I I K2 end of incoming cables, rectifier stack 2 input ends respectively, rectifier stack 2 mouths link to each other with electromagnet 1 through switch I II K3, electromagnet 1 links to each other with battery pack 3, battery pack 3 links to each other with inversion assembly 4 input ends, and inversion assembly 4 mouths link to each other with switch I I K2 leading-out terminal.
Three-phase alternating-current supply is powered just often, and switch I K1, switch I II K3 connect, and switch I I K2 disconnects, and rectifier stack 2 becomes direct current (DC) to deliver to electromagnet 1 and battery pack 3 AC rectification, and 1 work of power supply magnet and battery pack 3 charge; During the three-phase alternating-current supply outage, switch I K1, switch I II K3 disconnect, and switch I I K2 connects, battery pack 3 discharges, direct current (DC) is delivered to electromagnet 1 and inversion assembly 4, its work of electromagnet 1, inversion assembly 4 is reverse into three plase alternating current with it and gives big or small car owner's hook circuit supply.Guarantor's magnetic time of the present utility model can reach more than 15 minutes.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (1)
1. magnetic device is protected in a lifting magnet crane power failure, comprise electromagnet (1), rectifier stack (2), switch I K1, it is characterized in that, also comprise battery pack (3), inversion assembly (4), switch I I K2, switch I II K3, the end of incoming cables input three-phase alternating-current supply of described switch I K1, its leading-out terminal respectively with big or small car owner's hook circuit, switch I I K2 end of incoming cables, rectifier stack (2) input end links to each other, and rectifier stack (2) mouth links to each other with electromagnet (1) through switch I II K3, and electromagnet (1) links to each other with battery pack (3), battery pack (3) links to each other with inversion assembly (4) input end, and inversion assembly (4) mouth links to each other with switch I I K2 leading-out terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200369881U CN201395466Y (en) | 2009-03-03 | 2009-03-03 | Power failure magnet keeping device for electromagnetic crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200369881U CN201395466Y (en) | 2009-03-03 | 2009-03-03 | Power failure magnet keeping device for electromagnetic crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201395466Y true CN201395466Y (en) | 2010-02-03 |
Family
ID=41617968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200369881U Expired - Fee Related CN201395466Y (en) | 2009-03-03 | 2009-03-03 | Power failure magnet keeping device for electromagnetic crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201395466Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876107A (en) * | 2014-02-28 | 2015-09-02 | 大连星航机电设备有限公司 | Anti-steel-plate-falling lifting electromagnet equipment on ship unloader |
| CN108705533A (en) * | 2018-05-16 | 2018-10-26 | 塞伯睿机器人技术（长沙）有限公司 | The automatic cut-off protection maintaining method of industrial robot and the industrial robot for realizing this method |
-
2009
- 2009-03-03 CN CN2009200369881U patent/CN201395466Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876107A (en) * | 2014-02-28 | 2015-09-02 | 大连星航机电设备有限公司 | Anti-steel-plate-falling lifting electromagnet equipment on ship unloader |
| CN108705533A (en) * | 2018-05-16 | 2018-10-26 | 塞伯睿机器人技术（长沙）有限公司 | The automatic cut-off protection maintaining method of industrial robot and the industrial robot for realizing this method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20140303 |