CN201864442U - Inverter used for controlling alternating-current brake when electromagnetic lifter is in power failure - Google Patents
Inverter used for controlling alternating-current brake when electromagnetic lifter is in power failure Download PDFInfo
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- CN201864442U CN201864442U CN201020581038XU CN201020581038U CN201864442U CN 201864442 U CN201864442 U CN 201864442U CN 201020581038X U CN201020581038X U CN 201020581038XU CN 201020581038 U CN201020581038 U CN 201020581038U CN 201864442 U CN201864442 U CN 201864442U
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- type brake
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Abstract
The utility model provides an inverter for controlling an alternating-current brake when an electromagnetic filter is in power failure, comprising an inversion circuit and a control part, wherein the inversion circuit comprises frequency converters with the same frequency and alternating current, and a boosting transformer connected with the frequency converters, and a storage battery V is connected with the frequency converters; the control part comprises an alternating-current power detection relay 1KC and a band-type brake loosening control module, wherein a coil KC of the alternating-current power detection relay is connected with a power supply loop of a vehicle controller, and a normally-closed contact 1KC of the alternating-current power detection relay 1KC is connected in series in a power supply loop of the band-type brake loosening control module and a power supply loop of a power supply contactor 5KM of the conversion circuit; and the band-type brake loosening control module comprises a band-type brake loosening button SB and a program controller, the band-type brake loosening button SB is connected in series with the program controller, the output of the program controller is connected with a coil of an inversion output control relay 1KM, and the output of the boosting transformer is connected with an alternating-current brake by contacts 1KM1, 1KM2 and 1KM3 of the inversion output control relay 1KM.
Description
Technical field
The utility model relates to a kind of inverter that is used for electromagnetic lifter control ac brake when having a power failure, and belongs to the driving technical field of electric appliances.
Background technology
At present, the electromagnetic lifter that large-scale factories and miness use adopts hoisting of ac brake control driving mostly, when grid power blackout takes place midway in the lifting material, the guarantor's magnetic system that has a power failure will start automatically, the material of crane handling may be parked in the air because of power failure like this, in case the system blackout overlong time, the storage battery electric energy of the UPS of electromagnet exhausts, the material of handling finally can drop, and has serious potential safety hazard and smashes equipment or the material damage.Therefore, before the storage battery electric energy of UPS exhausts, need the surfaceman manually to utilize the continuous switching of drg that material safety is slowly drop to ground to the car brake place, but in use expose following problem:
1, because of drg is installed on the dolly, the operator's is unsighted, needs two the above persons' joint operations.
2, the artificial switching of drg, it is excessive through regular meeting's generation the band-type brake of drg to be unclamped, and it is too fast to cause the absorbate material to descend, thereby has serious potential safety hazard.
3, crane master file operated by rotary motion is a dual brake, and the artificial switching of drg is difficult to synchronously.And in large-scale factory, the task of hundred meters heavy rails of handling is finished jointly with two cranes, if this problem, the control of four drgs adopts artificial switching may finish hardly.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned existing disadvantages of background technology part, designs a kind of inverter that is used for electromagnetic lifter control ac brake when having a power failure.
The technical solution of the utility model: the inverter that is used for electromagnetic lifter control ac brake when having a power failure of the present utility model comprises inverter circuit and control part, its inverter circuit comprises frequency frequency converter identical with alternating current and the step-up transformer that is attached thereto, and storage battery V connects frequency converter; Control part comprises that source of AC detects relay 1KC, unclamps the band-type brake control module, the coil 1KC that source of AC detects relay is connected the current supply circuit of driving controller, and the normally closed contact 1KC1 that source of AC detects relay 1KC is connected in the current supply circuit of power supply contactless switch 5KM of the current supply circuit that unclamps the band-type brake control module and inverter circuit; Unclamping the band-type brake control module comprises and unclamps band-type brake button SB and programming controller, unclamping band-type brake button SB connects with programming controller, the output of programming controller connects the coil of inversion output control relay 1KM, and the output of step-up transformer is connected with ac brake by contact 1KM1,1KM2, the 1KM3 of inversion output control relay 1KM.
Described programming controller is the square-wave pulse generator, the width T=2 second of pulse, the interval T 1=2 second of pulse, unclamps width T2=6～8 second of the pulse of band-type brake button SB.
Advantage of the present utility model: the utility model has overcome the deficiency of original system, and operational effect is good.Have following beneficial effect:
When 1, having a power failure, in operator's compartment, just can control opening of band-type brake, and operate safer reliable by an operating personal.
2, control opening of band-type brake because of the mode that adopts the fixing pulsed output voltage of pulsewidth in unclamping the band-type brake control module, in time inaccurate when having avoided manually opening band-type brake improved the reliability of operation greatly.
Description of drawings
Fig. 1 is the electric simplified schematic diagram of the inversion system that provides of the utility model.
Fig. 2 is the scheme drawing of the pulse voltage control waveform that provides of the utility model.
The specific embodiment
Describe concrete performance of the present utility model in detail below in conjunction with accompanying drawing.
As Fig. 1: inverter bag inverter circuit and the control part that is used for electromagnetic lifter control ac brake when having a power failure of the present utility model, its inverter circuit comprises frequency frequency converter identical with alternating current and the step-up transformer that is attached thereto; Control part comprises that source of AC detects relay 1KC, unclamps the band-type brake control module, the coil 1KC that source of AC detects relay is connected driving controller current supply circuit, the normally closed contact 1KC1 that source of AC detects relay 1KC is connected in the current supply circuit of power supply contactless switch 5KM of the current supply circuit that unclamps the band-type brake control module and inverter circuit, and contact 5KM1, the 5KM2 of contactless switch 5KM is connected between frequency converter and the storage battery V; Unclamp the band-type brake control module and comprise series connected band-type brake button SB and the programming controller of unclamping, the output of programming controller connects the coil of inversion output control relay 1KM, and the output of step-up transformer is connected with ac brake by contact 1KM1,1KM2, the 1KM3 of inversion output control relay 1KM.LK is the electromagnet excitation magnet contactor.
Fig. 2 is the scheme drawing of the pulse voltage control waveform that provides of the utility model:
For preventing that the contingent band-type brake of manual operation from unclamping excessive problem, programming controller adopts the mode of the fixing pulsed output inverter voltage of pulsewidth to control opening of band-type brake.
Described programming controller is the square-wave pulse generator, the width T=2 second of pulse, the interval T 1=2 second of pulse, unclamps width T2=6～8 second of the pulse of band-type brake button SB.
Principle of work:
Normal circumstances, when driving does not have a power failure normal lifting material, electromagnet excitation magnet contactor LK connects, because of the relay 1KC that detects source of AC gets, the normally closed contact 1KC1 of relay disconnects, and contactless switch 5KM does not work, even push the button SB that unclamps band-type brake this moment, inverter circuit does not have voltage output, the controller line of can avoiding and the drive a vehicle phenomenon that is short-circuited yet.
When after the field switch LK of electromagnet connects, beginning suction, in case generation grid power blackout, relay 1KC dead electricity, the normally closed contact 1KC1 of relay 1KC connects, contactless switch 5KM gets, but contact 5KM1 5KM2 connects, the vdc of storage battery becomes direct current (DC) into three plase alternating current behind frequency converter, after boosting, step-up transformer is transformed into three-phase AC380 alternating current again, this moment is if push the button SB that unclamps band-type brake, programming controller will be exported the control by pulses voltage of 2 seconds pulsewidths, the break-make of control contactor 1KM, thus the control ac brake slowly puts down the absorbate material.
The button SB that unclamps band-type brake is located in the operator's compartment, and during power failure, operating personal can unclamp band-type brake button SB by pushing, and absorbate material safety is put to ground.
Claims (2)
1. one kind is used for electromagnetic lifter is controlled ac brake when having a power failure inverter, comprise inverter circuit and control part, it is characterized in that: inverter circuit comprises frequency frequency converter identical with alternating current and the step-up transformer that is attached thereto, and storage battery V connects frequency converter; Control part comprises that source of AC detects relay 1KC, unclamps the band-type brake control module, the coil 1KC that source of AC detects relay is connected the current supply circuit of driving controller, and the normally closed contact 1KC1 that source of AC detects relay 1KC is connected in the current supply circuit of power supply contactless switch 5KM of the current supply circuit that unclamps the band-type brake control module and inverter circuit; Unclamping the band-type brake control module comprises and unclamps band-type brake button SB and programming controller, unclamping band-type brake button SB connects with programming controller, the output of programming controller connects the coil of inversion output control relay 1KM, and the output of step-up transformer is connected with ac brake by contact 1KM1,1KM2, the 1KM3 of inversion output control relay 1KM.
2. the inverter that is used for electromagnetic lifter control ac brake when having a power failure according to claim 1, it is characterized in that: described programming controller is the square-wave pulse generator, the width T=2 second of pulse, the interval T 1=2 second of pulse, unclamp width T2=6～8 second of the pulse of band-type brake button SB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020581038XU CN201864442U (en) | 2010-10-28 | 2010-10-28 | Inverter used for controlling alternating-current brake when electromagnetic lifter is in power failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020581038XU CN201864442U (en) | 2010-10-28 | 2010-10-28 | Inverter used for controlling alternating-current brake when electromagnetic lifter is in power failure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201864442U true CN201864442U (en) | 2011-06-15 |
Family
ID=44135604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020581038XU Expired - Lifetime CN201864442U (en) | 2010-10-28 | 2010-10-28 | Inverter used for controlling alternating-current brake when electromagnetic lifter is in power failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201864442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253776A (en) * | 2015-11-25 | 2016-01-20 | 北京金自天正智能控制股份有限公司 | Semi-automatic control method of gantry crane |
-
2010
- 2010-10-28 CN CN201020581038XU patent/CN201864442U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253776A (en) * | 2015-11-25 | 2016-01-20 | 北京金自天正智能控制股份有限公司 | Semi-automatic control method of gantry crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180119 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Co-patentee after: Dalian Xing Hang mechanical & electronic equipment corporation, Ltd Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Co-patentee before: Dalian Xing Hang mechanical & electronic equipment corporation, Ltd Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |