CN102862916A - Method for controlling brakes of hoisting mechanism of crown block - Google Patents
Method for controlling brakes of hoisting mechanism of crown block Download PDFInfo
- Publication number
- CN102862916A CN102862916A CN2012103148213A CN201210314821A CN102862916A CN 102862916 A CN102862916 A CN 102862916A CN 2012103148213 A CN2012103148213 A CN 2012103148213A CN 201210314821 A CN201210314821 A CN 201210314821A CN 102862916 A CN102862916 A CN 102862916A
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- CN
- China
- Prior art keywords
- brakes
- hoisting mechanism
- contactor
- crown block
- original
- 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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- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention relates to a method for controlling brakes of a hoisting mechanism of a crown block, and belongs to the field of the control of crown blocks. The other set of contactor is arranged below a contactor of a magnetic force control disc of a hoisting mechanism of the original bridge crane, and power supplies of the two original brakes are connected to contacts of the two contactors, so that the two brakes are controlled by two sets of contactors respectively. According to the method, the two brakes are controlled by the two sets of contactors respectively; and when one set of contactor breaks down, the other set of contactor can also control one brake to ensure the normal running of the hoisting mechanism. The brakes are stable and reliable in running and good in effect, so that the normal running of the crown block is ensured further, and the obvious benefit is created for enterprises.
Description
Technical field
The invention belongs to the overhead traveling crane control field.
Background technology
The lifting mechanism drg of crane in bridge type is the vitals of overhead traveling crane, also be to guarantee that overhead traveling crane normally moves, one of important component that tries to avert accidents, the lifting mechanism drg control of using on the overhead traveling crane at present all is two drgs controlling simultaneously lifting mechanism by the cover of one on Magnetic Control dish contactless switch, this control design comparison is simple, might as well keep in repair, but there is serious hidden danger, working as exactly contactless switch sticks together, or two drgs of lifting mechanism will be simultaneously malfunctioning during the short circuit of contactless coil circuit ground, causes suspension hook not brake, and hangs the major accident of thing free falling, personal injury accident very likely occurs, and loses larger.
Summary of the invention
In order to improve the use safety of lifting mechanism drg, guarantee the normal operation of overhead traveling crane, reduce labor strength, for enterprise creates larger benefit, the invention provides overhead traveling crane lifting mechanism drg control method.
Technical scheme of the present invention is: be below the contactless switch of original bridge crane hoisting mechanism Magnetic Control dish another set of contactless switch to be installed, the power supply of original two drgs is connected on respectively on two probe of contactor, and realization two cover contactless switchs are controlled respectively two drgs.
The present invention adopts two cover contactless switchs to control respectively two drgs, and when a cover contactless switch et out of order wherein, another set of contactless switch can also be controlled a drg, and actv. guarantees the normal operation of lifting mechanism.
Drg stable and reliable operation of the present invention, effect are very good.Thereby further guaranteed the normal operation of overhead traveling crane, for enterprise has created remarkable benefit.
Description of drawings
Fig. 1 is circuit diagram of the present invention.
Among the figure, 1, motor, 2, contactless switch.
The specific embodiment
Below the contactless switch ZDC1 of original lifting mechanism Magnetic Control dish, a cover contactless switch ZDC2 is being installed, the power supply of original two drgs is being connected on respectively on two probe of contactor, realizing that two cover contactless switchs respectively control a drg.
Claims (1)
1. overhead traveling crane lifting mechanism drg control method, it is characterized in that below the contactless switch of original bridge crane hoisting mechanism Magnetic Control dish, another set of contactless switch being installed, the power supply of original two drgs is connected on respectively on two probe of contactor, and realization two cover contactless switchs are controlled respectively two drgs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103148213A CN102862916A (en) | 2012-08-30 | 2012-08-30 | Method for controlling brakes of hoisting mechanism of crown block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103148213A CN102862916A (en) | 2012-08-30 | 2012-08-30 | Method for controlling brakes of hoisting mechanism of crown block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102862916A true CN102862916A (en) | 2013-01-09 |
Family
ID=47442101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103148213A Pending CN102862916A (en) | 2012-08-30 | 2012-08-30 | Method for controlling brakes of hoisting mechanism of crown block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102862916A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058062A (en) * | 2013-01-15 | 2013-04-24 | 山西太钢不锈钢股份有限公司 | Online detecting method for brake of lifting mechanism of crane |
| CN115092787A (en) * | 2022-06-23 | 2022-09-23 | 上海新时达电气股份有限公司 | Elevator brake detection system and method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203694Y (en) * | 1994-11-18 | 1995-07-19 | 金国钜 | Four-wire grabbing single handle operating controlling apparatus |
| CN101205567A (en) * | 2007-12-18 | 2008-06-25 | 北京金自天正智能控制股份有限公司 | Brake control device |
| CN101723251A (en) * | 2009-12-29 | 2010-06-09 | 太原重工股份有限公司 | Electrical control system of crane of nuclear power plant |
-
2012
- 2012-08-30 CN CN2012103148213A patent/CN102862916A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203694Y (en) * | 1994-11-18 | 1995-07-19 | 金国钜 | Four-wire grabbing single handle operating controlling apparatus |
| CN101205567A (en) * | 2007-12-18 | 2008-06-25 | 北京金自天正智能控制股份有限公司 | Brake control device |
| CN101723251A (en) * | 2009-12-29 | 2010-06-09 | 太原重工股份有限公司 | Electrical control system of crane of nuclear power plant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058062A (en) * | 2013-01-15 | 2013-04-24 | 山西太钢不锈钢股份有限公司 | Online detecting method for brake of lifting mechanism of crane |
| CN115092787A (en) * | 2022-06-23 | 2022-09-23 | 上海新时达电气股份有限公司 | Elevator brake detection system and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130109 |