CN101628697A - Controller for preventing brake contactors of crane from being adhered - Google Patents
Controller for preventing brake contactors of crane from being adhered Download PDFInfo
- Publication number
- CN101628697A CN101628697A CN200810140769A CN200810140769A CN101628697A CN 101628697 A CN101628697 A CN 101628697A CN 200810140769 A CN200810140769 A CN 200810140769A CN 200810140769 A CN200810140769 A CN 200810140769A CN 101628697 A CN101628697 A CN 101628697A
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- China
- Prior art keywords
- brake
- controller
- contactor
- contactors
- adhered
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- 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.)
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- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a controller for preventing brake contactors of a crane from being adhered, which comprises a power supply, a raising master controller, a phase change contactor, the brake contactors, a braking device and a raising motor. The controller is characterized in that main contact serial lines of two brake contactors are connected with a fault display of a single brake contactor, the power supply is taken from a lower joint of the phase change contactor of the raising motor, then the master controller is at the zero position at the moment, the phase change contactor is not electrified, and the contactor is in a non-operating state; and if the two brake contactors are adhered at the same time, a band-type brake is still closed because the braking device is not electrified, and the raising motor cannot acquire a signal so as not to work. The controller can prompt adhesion alarm of the brake contactors in time, and prompt a driver and a maintenance man to replace the adhered contactors so as to avoid falling accidents caused by an incontrollable heavy object.
Description
Technical field
The present invention relates to a kind of ladle carne braking contactor adhesion controller that prevents, be specially adapted to use on the hoister in large tonnage lifting mechanism.
Background technology
Existing classical QR2S circuit diagram (see figure 1), drg contactless switch power supply is taken from mounted head on the reversing contactor on the lifting motor, the master controller that hoists outputs signal to reversing contactor, drg contactless switch, as the master controller that hoists is in zero-bit, reversing contactor not electric, be in not attracting state, if this moment, braking contactor sticked together, brake equipment gets electric, and it is out of control that band-type brake is opened weight, and (see figure 1) will have an accident.
Summary of the invention
Task of the present invention is to propose can in time point out warning when a kind of circuit sticks together, the accident of stopping takes place, prevent ladle carne braking contactor adhesion controller, task of the present invention is finished like this: it comprises power supply, master controller hoists, the commutation contactless switch, the drg contactless switch, brake equipment, lifting motor, it is characterized in that: adopt two braking contactor main contact series circuits and separate unit drg contactless switch fault to show and connect, power supply is taken from the lower adaptor of lifting motor reversing contactor, this moment, master controller was in zero-bit, reversing contactor is not, contactless switch is in not attracting state, as the adhesion simultaneously of two drg contactless switchs, because of brake equipment not, band-type brake is still closed, and lifting motor can not get signal and can not work.The present invention has following effect: this controller can in time point out the braking contactor adhesion to report to the police, and prompting driver and maintainer in time change the contactless switch of adhesion, stop to take place weight whereabouts out of control accident.
Description of drawings
Fig. 1 is the prior art electrical block diagram
Fig. 2 is an electrical block diagram of the present invention
The drawing explanation
1, power supply 2, the master controller 3 that hoists, reversing contactor 4, drg contactless switch 5, lifting motor 6, brake equipment 7, separate unit drg contactless switch fault detector
The specific embodiment
Describe embodiment in detail in conjunction with above accompanying drawing, adopt 380V during power supply 1, power supply is taken from reversing contactor 3 lower adaptors on the lifting motor 5, the master controller 2 that hoists outputs signal to reversing contactor 3 and drg contactless switch 4 (4-1) (4-2), braking contactor adopts two main contact series circuits, this moment, master controller 2 was in zero-bit, lifting motor reversing contactor 3 is not, reversing contactor is in not attracting state, even two drg contactless switch adhesions simultaneously, because of drg 5 at this moment not, band-type brake is still closed, and at this moment lifting motor 4 does not have incoming signal can not work, and has increased separate unit drg contactless switch fault detector 7 in addition in two drg contactless switch circuits, as the adhesion meeting occurs and in time report to the police, prompting driver and maintainer in time change the contactless switch of adhesion.
Claims (1)
1, prevent brake contactors of crane adhesion controller, it comprises power supply, master controller hoists, the commutation contactless switch, the drg contactless switch, brake equipment, lifting motor, it is characterized in that: adopt two braking contactor main contact series circuits and separate unit drg contactless switch fault to show and connect, power supply is taken from the lower adaptor of lifting motor reversing contactor, this moment, master controller was in zero-bit, reversing contactor is not, contactless switch is in not attracting state, as the adhesion simultaneously of two drg contactless switchs, because of brake equipment not, band-type brake is still closed, and lifting motor can not get signal and can not work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810140769A CN101628697A (en) | 2008-07-18 | 2008-07-18 | Controller for preventing brake contactors of crane from being adhered |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810140769A CN101628697A (en) | 2008-07-18 | 2008-07-18 | Controller for preventing brake contactors of crane from being adhered |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101628697A true CN101628697A (en) | 2010-01-20 |
Family
ID=41574008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810140769A Pending CN101628697A (en) | 2008-07-18 | 2008-07-18 | Controller for preventing brake contactors of crane from being adhered |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101628697A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730565A (en) * | 2012-06-27 | 2012-10-17 | 河南起重机器有限公司 | Crane controller for detecting normal operation of brake |
| CN108803430A (en) * | 2018-07-06 | 2018-11-13 | 攀钢集团西昌钢钒有限公司 | A kind of converter inclining brake control circuit and converter brake |
-
2008
- 2008-07-18 CN CN200810140769A patent/CN101628697A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730565A (en) * | 2012-06-27 | 2012-10-17 | 河南起重机器有限公司 | Crane controller for detecting normal operation of brake |
| CN108803430A (en) * | 2018-07-06 | 2018-11-13 | 攀钢集团西昌钢钒有限公司 | A kind of converter inclining brake control circuit and converter brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100120 |