CN104528567A - Safe lifting control device for desulfuration stirring head - Google Patents
Safe lifting control device for desulfuration stirring head Download PDFInfo
- Publication number
- CN104528567A CN104528567A CN201510000447.3A CN201510000447A CN104528567A CN 104528567 A CN104528567 A CN 104528567A CN 201510000447 A CN201510000447 A CN 201510000447A CN 104528567 A CN104528567 A CN 104528567A
- Authority
- CN
- China
- Prior art keywords
- pneumatic
- controller
- power
- electronic
- transfer clutch
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/08—Driving gear incorporating fluid motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/42—Control devices non-automatic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
- B66D1/56—Adaptations of limit switches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a safe lifting control device for a desulfuration stirring head. The device comprises a machine frame, a winding drum is arranged on the machine frame and is driven by a speed reducer, the two sides of an output shaft of the speed reducer are provided with band-type brakes, a motor and a pneumatic device can be in transmission with the speed reducer through a clutch, a motor driving gear and a pneumatic driving gear are arranged in the clutch, the clutch can be shifted between the two gears by poking a clutch handle, and a controller is arranged on the machine frame; a switch, a pneumatic ascending button, an electric ascending button, an electric descending button, an indication lamp and an alarm are arranged in the controller, the pneumatic ascending button is used for controlling the pneumatic device, and the electric ascending button and the electric descending button are used for controlling the motor; a travel switch is arranged on the machine frame, and by poking the clutch handle, when the clutch is shifted to the pneumatic driving gear, the clutch handle can touch the travel switch so that the travel switch can work. Operation indications can be provided for operators, and safety of ascending and descending work of the desulfuration stirring head can be greatly improved.
Description
Technical field
The present invention relates to and can make the safe apparatus for controlling of lifting of desulfurization agitator head that in desulfurizer, desulfurization agitator head is elevated safely.
Background technology
In steelworks, desulfurizer is used to equipment molten iron in ladle being carried out to desulfurization, and desulfurization agitator head during work in desulfurizer extend in ladle after declining and carries out desulfurization to molten iron, and after desulfurization work completes, desulfurization agitator head rises again and sets back.The structure controlling the apparatus for controlling of lifting of desulfurization agitator head lifting is: in frame, be provided with reel, reel drives desulfurization agitator head oscilaltion by steel rope, reel is driven by the retarder be installed in frame, also band-type brake is provided with in the output shaft both sides of retarder, when after desulfurization agitator head stop motion, band-type brake can embrace reducer output shaft, prevent desulfurization agitator head from dropping, motor and pneumatics are respectively by power-transfer clutch and the transmission of retarder phase, be provided with motor in power-transfer clutch and drive shelves and pneumatic actuation shelves, dial handle power-transfer clutch can be made to change between two gears by stirring power-transfer clutch, when power-transfer clutch is in motor driving shelves, retarder is driven by motor, when power-transfer clutch is in pneumatic actuation shelves, retarder is driven by pneumatics, frame is also provided with and can controls motor, pneumatics, and the controller of band-type brake work, be provided with change-over swith in the controller, pneumatic raise button, electronic raise button, electronic decline button, wherein change-over swith has normal condition and accident condition two gears, when change-over swith is in normal condition gear, controller actuating motor drive program controls motor, and when change-over swith is in accident condition gear, controller performs pneumatic actuation program and controls pneumatics.
In normal power-up situation, the lifting of desulfurization agitator head is driven by motor.But, when desulfurization agitator head is carrying out in the process of desulfurization to molten iron, during the accident that power-off, frequency converter failure etc. make motor work as occurred, consider in order to safety and desulfurization agitator head need be promoted and remove to keep in repair fault place, at this moment because motor cannot work, so the lifting of desulfurization agitator head need be driven by motor be converted to pneumatics driving; Above-mentioned by motor drive be converted to pneumatics drive control step as follows: first need switch transition switch to make it be converted to accident condition gear by original normal condition gear, then stir power-transfer clutch dial handle make power-transfer clutch by original motor drive shelves be converted to pneumatic actuation shelves, finally pressing pneumatic raise button makes controller perform pneumatic actuation program, the band-type brake of reducer output shaft both sides can be made to open with Time Controller, so just desulfurization agitator head can be driven to rise by pneumatics.
Desulfurization agitator head is driven in the process being converted to pneumatics driving by motor, operating personal is after switching to accident condition gear by change-over swith, often can forget that stirring power-transfer clutch dials handle, such power-transfer clutch just can not drive shelves to be converted to pneumatic actuation shelves from original motor, in this case after operating personal presses pneumatic raise button, controller still can make the band-type brake of reducer output shaft both sides open, but because pneumatics does not drive retarder, desulfurization agitator head will be caused to decline under the effect of deadweight, because the weight of desulfurization agitator head is larger, so huge impact will be produced in decline process, cause great potential safety hazard.
Summary of the invention
Technical matters to be solved by this invention is: will provide a kind of safe apparatus for controlling of lifting of desulfurization agitator head that can improve desulfurization agitator head elevating safety in desulfurizer.
In order to solve the problem, the technical solution adopted in the present invention is: the safe apparatus for controlling of lifting of desulfurization agitator head, comprise: frame, frame is provided with the reel that desulfurization agitator head can be driven to be elevated, reel is driven by the retarder be installed in frame, also be provided with in the output shaft both sides of retarder and can embrace reducer output shaft and the band-type brake preventing desulfurization agitator head from dropping after desulfurization agitator head stop motion, motor and pneumatics are respectively by power-transfer clutch and the transmission of retarder phase, be provided with motor in power-transfer clutch and drive shelves and pneumatic actuation shelves, dial handle power-transfer clutch can be made to change between two gears by stirring power-transfer clutch, when power-transfer clutch is in motor driving shelves, retarder is driven by motor, when power-transfer clutch is in pneumatic actuation shelves, retarder is driven by pneumatics, frame is also provided with and can controls motor, pneumatics, and the controller of band-type brake work, be provided with change-over swith in the controller, pneumatic raise button, electronic raise button, electronic decline button, pneumatic raise button is used for controlling pneumatics, electronic raise button and electronic decline button are used for controlling motor, the incoming end of change-over swith is connected with power supply, two of change-over swith pick out end and are connected with pneumatic drive singal end with the motor drive signal end of controller respectively, when switch transition switch makes motor drive signal termination receive electric signal, controller actuating motor drive program controls motor, when switch transition switch makes pneumatic actuation signal end receive electric signal, controller performs pneumatic actuation program and controls pneumatics, pneumatic raise button is series between the pneumatic rising signals end of controller and power supply, pressing pneumatic raise button can make pneumatic rising signals termination receive electric signal, electronic raise button is series between the electronic rising signals end of controller and power supply, pressing electronic raise button can make electronic rising signals termination receive electric signal, electronic decline button is series between the electronic dropping signal end of controller and power supply, pressing electronic decline button can make electronic dropping signal termination receive electric signal, when controller actuating motor drive program, after pressing electronic raise button, controller can be opened band-type brake and make motor drive desulfurization agitator head to rise, and after pressing electronic decline button, controller can be opened band-type brake and make motor drive desulfurization agitator head to decline, when controller performs pneumatic actuation program, after pressing pneumatic raise button, controller can be opened band-type brake and make pneumatics drive desulfurization agitator head to rise, be characterized in: be also provided with indicator lamp and annunciator in the controller, frame is also provided with travel switch, when stir power-transfer clutch dial handle make power-transfer clutch be converted to pneumatic actuation shelves time, power-transfer clutch dials handle can touch travel switch, makes that the normally closed interlock in travel switch is opened, normally open contact closes, normally closed interlock in indicator lamp, annunciator, travel switch and normally open contact are respectively by connection terminal access controller circuit, wherein: annunciator is connected with pneumatic actuation signal end with the one end of the warning circuit formed after the normally closed interlock series connection in travel switch, the other end ground connection of warning circuit, normally open contact in travel switch is series between pneumatic raise button and power supply, and one end of indicator lamp is connected between normally open contact and pneumatic raise button, the other end ground connection of indicator lamp.
Further, the safe apparatus for controlling of lifting of aforesaid desulfurization agitator head, wherein: connection terminal is band cartridge fuse connection terminal.
Further, the safe apparatus for controlling of lifting of aforesaid desulfurization agitator head, wherein: annunciator is band flashing lamp annunciator.
Further, the safe apparatus for controlling of lifting of aforesaid desulfurization agitator head, wherein: travel switch is Direct Action Type travel switch.
Further, the safe apparatus for controlling of lifting of aforesaid desulfurization agitator head, wherein: indicator lamp is 24V indicator lamp.
Further, the safe apparatus for controlling of lifting of aforesaid desulfurization agitator head, wherein: need mark power-transfer clutch being switched to pneumatic actuation shelves when the below of annunciator is provided with teaching process personnel in alarm equipment alarm.
Further, the safe apparatus for controlling of lifting of aforesaid desulfurization agitator head, wherein: be provided with teaching process personnel power-transfer clutch when indicator lamp is shinny in the below of indicator lamp and be positioned at the mark of pneumatic actuation shelves.
Advantage of the present invention is: the safe apparatus for controlling of lifting of desulfurization agitator head of the present invention can give operating personal operation indicating when desulfurization agitator head is driven be converted to pneumatics driving by motor, and when power-transfer clutch does not switch to pneumatic actuation shelves, pressing pneumatic raise button cannot make the band-type brake of reducer output shaft both sides be opened, such desulfurization agitator head would not drop, and substantially increases the safety of desulfurization agitator head lifting work.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the safe apparatus for controlling of lifting of desulfurization agitator head of the present invention.
Fig. 2 is the circuit theory schematic diagram in the safe apparatus for controlling of lifting of desulfurization agitator head of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is described in further detail.For more clearly reflecting the dependency structure of the safe apparatus for controlling of lifting of desulfurization agitator head, in accompanying drawing, do not draw frame, but this can't hinder the understanding to technical solution of the present invention.
The safe apparatus for controlling of lifting of desulfurization agitator head, as shown in Figure 1, comprise: frame, frame is provided with the reel 7 that desulfurization agitator head can be driven to be elevated, reel 7 can drive desulfurization agitator head to be elevated by steel rope, reel 7 is driven by the retarder 5 be installed in frame, also be provided with in the output shaft both sides of retarder 5 and can embrace retarder 5 output shaft and the band-type brake 6 preventing desulfurization agitator head from dropping after desulfurization agitator head stop motion, motor 1 and pneumatics 2 are respectively by power-transfer clutch 3 and the transmission of retarder 5 phase, in actual applications, pneumatics 2 can be air motor, be provided with motor in power-transfer clutch 3 and drive shelves and pneumatic actuation shelves, handle 31 is dialled by stirring power-transfer clutch, power-transfer clutch 3 can be made to change between two gears, when power-transfer clutch 3 is in motor driving shelves, retarder 5 is driven by motor 1, when power-transfer clutch 3 is in pneumatic actuation shelves, retarder 5 is driven by pneumatics 2, frame is also provided with and can controls motor 1, pneumatics 2, and the controller 9 that band-type brake 6 works, as shown in Figure 1 and Figure 2, change-over swith 82, pneumatic raise button 83, electronic raise button 841, electronic decline button 84 is provided with in controller 9, pneumatic raise button 83 is used for controlling pneumatics 2, and electronic raise button 841 and electronic decline button 84 are used for controlling motor 1, the incoming end of change-over swith 82 is connected with power supply, two of change-over swith 82 pick out end and are connected with pneumatic drive singal end 92 with the motor drive signal end 91 of controller 9 respectively, when switch transition switch 82 makes motor drive signal end 91 receive electric signal, controller 9 actuating motor drive program controls motor 1, usual title now change-over swith 82 is in normal condition gear, when switch transition switch 82 makes pneumatic actuation signal end 92 receive electric signal, controller 9 performs pneumatic actuation program to control pneumatics 2, usual title now change-over swith 82 is in accident condition gear, pneumatic raise button 83 is series between the pneumatic rising signals end 93 of controller 9 and power supply, pressing pneumatic raise button 83 can make pneumatic rising signals end 93 receive electric signal, electronic raise button 841 is series between the electronic rising signals end 94 of controller 9 and power supply, pressing electronic raise button 841 can make electronic rising signals end 94 receive electric signal, electronic decline button 84 is series between the electronic dropping signal end 95 of controller 9 and power supply, pressing electronic decline button 84 can make electronic dropping signal end 95 receive electric signal, when controller 9 actuating motor drive program, after pressing electronic raise button 841, controller 9 can be opened band-type brake 6 and make motor 1 drive desulfurization agitator head to rise, and after pressing electronic decline button 84, controller 9 can be opened band-type brake 6 and make motor 1 drive desulfurization agitator head to decline, when controller 9 performs pneumatic actuation program, after pressing pneumatic raise button 83, controller 9 can be opened band-type brake 6 and make pneumatics 2 drive desulfurization agitator head to rise, indicator lamp 81 and annunciator 8 is also provided with in controller 9, frame is also provided with travel switch 4, when stir power-transfer clutch dial handle 31 make power-transfer clutch 3 be converted to pneumatic actuation shelves time, power-transfer clutch dials handle 31 can touch travel switch 4, makes that the normally closed interlock 41 in travel switch 4 is opened, normally open contact 42 closes, normally closed interlock 41 in indicator lamp 81, annunciator 8, travel switch 4 and normally open contact 42 are respectively by connection terminal access controller 9 circuit, wherein: the one end of the warning circuit that annunciator 8 is formed after connecting with the normally closed interlock 41 in travel switch 4 is connected with pneumatic actuation signal end 92, the other end ground connection of warning circuit, normally open contact 42 in travel switch 4 is series between pneumatic raise button 83 and power supply, and one end of indicator lamp 81 is connected between normally open contact 42 and pneumatic raise button 83, the other end ground connection of indicator lamp 81.Following function can be realized: when change-over swith 82 switches to accident condition gear after indicator lamp 81, annunciator 8, travel switch 4 are set in controller 9, because the normally closed interlock 41 in travel switch 4 is closed and normally open contact 42 is opened, annunciator 8 will be switched on, indicator lamp 81 is not switched on, and because normally open contact 42 is opened, so pneumatic rising signals end 93 can not receive electric signal after pressing pneumatic raise button 83, thus controller 9 can not open band-type brake 6; When change-over swith 82 is still in accident condition gear, now dial handle 31 make travel switch 4 be dialled handle 31 by power-transfer clutch to touch when stirring power-transfer clutch, normally closed interlock 41 then in travel switch 4 can be opened normally open contact 42 and then can close, disconnection, indicator lamp 81 will be switched on by such annunciator 8, and because normally open contact 42 closes, so after pressing pneumatic raise button 83, pneumatic rising signals end 93 can receive electric signal, thus controller 9 can be opened band-type brake 6 and make pneumatics 2 drive desulfurization agitator head to rise.
In the present embodiment, each connection terminal is band cartridge fuse connection terminal, adopts band cartridge fuse connection terminal can play the effect of overload protection.Annunciator 8 is band flashing lamp annunciator, and band flashing lamp annunciator warning function is stronger, more can cause the attention of operating personal.Travel switch 4 is Direct Action Type travel switch, Direct Action Type travel switch simple and reliable for structure, low price.Indicator lamp 81 is 24V indicator lamp, and 24V indicator lamp meets the voltage of controller 9 circuit most.Also be provided with energy teaching process personnel need power-transfer clutch 3 to switch to pneumatic actuation shelves mark when annunciator 8 is reported to the police in the below of annunciator 8, the content in this mark can be " power-transfer clutch is please switched to pneumatic actuation shelves by accident condition "; Be provided with in the below of indicator lamp 81 and can be positioned at the mark of pneumatic actuation shelves by teaching process personnel power-transfer clutch 3 when indicator lamp 81 is shinny, content in this mark can be " when indicator lamp is shinny; power-transfer clutch has been positioned at pneumatic actuation shelves ", below annunciator 8 and indicator lamp 81, arrange mark can instruct operating personal to carry out next step operation, increases work efficiency and processing safety.
The principle of work of the safe apparatus for controlling of lifting of the desulfurization agitator head described in the present embodiment is: as shown in Figure 1 and Figure 2, when change-over swith 82 is positioned at normal condition gear, controller 9 actuating motor drive program controls motor, and electronic raise button 841 and electronic decline button 84 now can be used to control the lifting of desulfurization agitator head, when change-over swith 82 is positioned at accident condition gear, annunciator 8 can be reported to the police, then operating personal can notice the mark below this alarm condition and annunciator 8, operating personal is again according to the prompting in mark, stir power-transfer clutch dial handle 31 make power-transfer clutch 3 by original motor drive shelves be converted to pneumatic actuation shelves, now retarder 5 be can't help motor 1 and is driven, but driven by pneumatics 2, after power-transfer clutch 3 is converted to pneumatic actuation shelves, indicator lamp 81 can be shinny, annunciator 8 meeting stop alarm, finally press pneumatic raise button 83, controller 9 can be opened band-type brake 6 and make pneumatics 2 drive desulfurization agitator head to rise.Note, if operating personal is not converted to pneumatic actuation shelves power-transfer clutch 3, namely power-transfer clutch is dialled handle 31 and is not touched travel switch 4, now not shinny, the annunciator 8 of indicator lamp 81 is still reported to the police, in this case, after operating personal presses pneumatic raise button 83, controller 9 can not open band-type brake 6, and at this moment desulfurization agitator head can not fall because of not having pneumatics 2 to drive.
Beneficial effect of the present invention is: the safe apparatus for controlling of lifting of desulfurization agitator head of the present invention can give operating personal operation indicating when desulfurization agitator head is driven be converted to pneumatics driving by motor, and when power-transfer clutch does not switch to pneumatic actuation shelves, pressing pneumatic raise button cannot make the band-type brake of reducer output shaft both sides be opened, such desulfurization agitator head would not drop, and substantially increases the safety of desulfurization agitator head lifting work.
Claims (7)
1. the safe apparatus for controlling of lifting of desulfurization agitator head, comprise: frame, frame is provided with the reel that desulfurization agitator head can be driven to be elevated, reel is driven by the retarder be installed in frame, also be provided with in the output shaft both sides of retarder and can embrace reducer output shaft and the band-type brake preventing desulfurization agitator head from dropping after desulfurization agitator head stop motion, motor and pneumatics are respectively by power-transfer clutch and the transmission of retarder phase, be provided with motor in power-transfer clutch and drive shelves and pneumatic actuation shelves, dial handle power-transfer clutch can be made to change between two gears by stirring power-transfer clutch, when power-transfer clutch is in motor driving shelves, retarder is driven by motor, when power-transfer clutch is in pneumatic actuation shelves, retarder is driven by pneumatics, frame is also provided with and can controls motor, pneumatics, and the controller of band-type brake work, be provided with change-over swith in the controller, pneumatic raise button, electronic raise button, electronic decline button, pneumatic raise button is used for controlling pneumatics, electronic raise button and electronic decline button are used for controlling motor, the incoming end of change-over swith is connected with power supply, two of change-over swith pick out end and are connected with pneumatic drive singal end with the motor drive signal end of controller respectively, when switch transition switch makes motor drive signal termination receive electric signal, controller actuating motor drive program controls motor, when switch transition switch makes pneumatic actuation signal end receive electric signal, controller performs pneumatic actuation program and controls pneumatics, pneumatic raise button is series between the pneumatic rising signals end of controller and power supply, pressing pneumatic raise button can make pneumatic rising signals termination receive electric signal, electronic raise button is series between the electronic rising signals end of controller and power supply, pressing electronic raise button can make electronic rising signals termination receive electric signal, electronic decline button is series between the electronic dropping signal end of controller and power supply, pressing electronic decline button can make electronic dropping signal termination receive electric signal, when controller actuating motor drive program, after pressing electronic raise button, controller can be opened band-type brake and make motor drive desulfurization agitator head to rise, and after pressing electronic decline button, controller can be opened band-type brake and make motor drive desulfurization agitator head to decline, when controller performs pneumatic actuation program, after pressing pneumatic raise button, controller can be opened band-type brake and make pneumatics drive desulfurization agitator head to rise, it is characterized in that: be also provided with indicator lamp and annunciator in the controller, frame is also provided with travel switch, when stir power-transfer clutch dial handle make power-transfer clutch be converted to pneumatic actuation shelves time, power-transfer clutch dials handle can touch travel switch, makes that the normally closed interlock in travel switch is opened, normally open contact closes, normally closed interlock in indicator lamp, annunciator, travel switch and normally open contact are respectively by connection terminal access controller circuit, wherein: annunciator is connected with pneumatic actuation signal end with the one end of the warning circuit formed after the normally closed interlock series connection in travel switch, the other end ground connection of warning circuit, normally open contact in travel switch is series between pneumatic raise button and power supply, and one end of indicator lamp is connected between normally open contact and pneumatic raise button, the other end ground connection of indicator lamp.
2. the safe apparatus for controlling of lifting of desulfurization agitator head according to claim 1, is characterized in that: connection terminal is band cartridge fuse connection terminal.
3. the safe apparatus for controlling of lifting of desulfurization agitator head according to claim 1 and 2, is characterized in that: annunciator is band flashing lamp annunciator.
4. the safe apparatus for controlling of lifting of desulfurization agitator head according to claim 1 and 2, is characterized in that: travel switch is Direct Action Type travel switch.
5. the safe apparatus for controlling of lifting of desulfurization agitator head according to claim 1 and 2, is characterized in that: indicator lamp is 24V indicator lamp.
6. the safe apparatus for controlling of lifting of desulfurization agitator head according to claim 1 and 2, is characterized in that: when the below of annunciator is provided with teaching process personnel in alarm equipment alarm, needs switch to power-transfer clutch the mark of pneumatic actuation shelves.
7. the safe apparatus for controlling of lifting of desulfurization agitator head according to claim 1 and 2, is characterized in that: be provided with teaching process personnel power-transfer clutch when indicator lamp is shinny in the below of indicator lamp and be positioned at the mark of pneumatic actuation shelves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000447.3A CN104528567B (en) | 2015-01-04 | 2015-01-04 | Safe lifting control device for desulfuration stirring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000447.3A CN104528567B (en) | 2015-01-04 | 2015-01-04 | Safe lifting control device for desulfuration stirring head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104528567A true CN104528567A (en) | 2015-04-22 |
| CN104528567B CN104528567B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000447.3A Active CN104528567B (en) | 2015-01-04 | 2015-01-04 | Safe lifting control device for desulfuration stirring head |
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| Country | Link |
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| CN (1) | CN104528567B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819357A (en) * | 2016-06-16 | 2016-08-03 | 周玉红 | Intelligent marine winch capable of being remotely controlled |
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| CN202897891U (en) * | 2012-10-12 | 2013-04-24 | 兰州兰石国民油井石油工程有限公司 | Novel chain transmission heavy load boring winch |
| CN204454390U (en) * | 2015-01-04 | 2015-07-08 | 江苏永钢集团有限公司 | The safe apparatus for controlling of lifting of desulfurization agitator head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639439A (en) * | 2002-02-27 | 2005-07-13 | 维尔特机器和钻孔工具制造厂有限公司 | Draw works |
| CN201264856Y (en) * | 2008-09-10 | 2009-07-01 | 济南重工股份有限公司 | Slow hoister |
| CN201626796U (en) * | 2009-12-15 | 2010-11-10 | 中国石油集团长城钻探工程有限公司 | Skid-mounted AC electric suction and sand-bailing winch |
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| CN204454390U (en) * | 2015-01-04 | 2015-07-08 | 江苏永钢集团有限公司 | The safe apparatus for controlling of lifting of desulfurization agitator head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819357A (en) * | 2016-06-16 | 2016-08-03 | 周玉红 | Intelligent marine winch capable of being remotely controlled |
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| Publication number | Publication date |
|---|---|
| CN104528567B (en) | 2017-01-25 |
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Effective date of registration: 20190705 Address after: 215600 Yonglian Village, Nanfeng Town, Zhangjiagang City, Jiangsu Province Patentee after: Lian Feng Steel (Zhangjiagang) Co., Ltd. Address before: 215628 Yonglian Jiangsu Yonggang Group Co., Ltd., Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: Jiangsu Yonggang Group Co., Ltd. |
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