CN101451179B - RH ladle double jacking apparatus - Google Patents
RH ladle double jacking apparatus Download PDFInfo
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- CN101451179B CN101451179B CN2008103065182A CN200810306518A CN101451179B CN 101451179 B CN101451179 B CN 101451179B CN 2008103065182 A CN2008103065182 A CN 2008103065182A CN 200810306518 A CN200810306518 A CN 200810306518A CN 101451179 B CN101451179 B CN 101451179B
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- ladle
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- lifting
- driving arm
- jacking cylinder
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Abstract
The invention relates to a lifting device particularly applied to lifting of a ladle during RH vacuum treatment, and discloses an RH ladle double lifting device. The RH ladle double lifting device comprises a driving support and a lifting oil cylinder, and is characterized in that a bracket is arranged between the ladle and a ladle vehicle; the driving support is arranged in an RH treatment position and positioned on both sides of the ladle vehicle; the head of the lifting oil cylinder can contact the driving support during lifting; and the driving support is lifted by the lifting oil cylinder, so that the driving support contacts bearing pedestals on both sides of the bracket and lifts the bracket and the ladle in the bracket, thereby realizing movement of the bracket and the ladle in the vertical direction. The invention provides a method for realizing lifting of the ladle and the bracket by arranging the lifting oil cylinder on the ground, and solves the problem that an underground lifting device and a winding and lifting device in the prior art can not be adopted under special conditions. Compared with the underground lifting device in the prior art, the lifting device has the advantages of simple structure, convenient assembly, safe operation and good use effect.
Description
Technical field
The present invention relates to a kind of jacking apparatus, specifically be applied to RH vacuum-treat process.
Background technology
What the RH vacuum-treat began to adopt most is the mode of vacuum chamber lifting, and it is static that ladle keeps, and promptly goes up moving method.But this kind mode is because vacuum chamber is not easy to safeguard to be changed, and gas leakage causes vacuum tightness not enough easily, and operating rate is low, eliminates basically.
At present, the mode that prior art adopts has two kinds, and a kind of is to make the ladle lifting carry out refining treatment to handling the position with external force, i.e. moving method down.Than the proven technique scheme be adopt plunger piston fluid pressure cylinder with buggy ladle together with ladle jack-up, this mode need be done a deep basal pit dark more than 7 meters on the ground, plunger case is fixed on the end, hole, because need be with buggy ladle jacking together, the required ability of oil cylinder is bigger, thereby cause cylinder diameter very big, invest higherly, the delivery cycle of main pump is longer in oil cylinder and the hydraulic pressure pump control system.
Another is to go up flowing mode, adopts gantry hook and hoisting mechanism with ladle lifting, finishes vacuum-treat.Because the singularity of some steel mill's transformation project, can't adopt this jacking apparatus because of underground pipe gallery is arranged handling station, and top rail level height is restricted, the mode handling ladle that can not adopt the ladle elevator with finish the RH refining treatment.
Summary of the invention
When realizing the jacking of buggy ladle and ladle for solving employing plunger piston fluid pressure cylinder that prior art exists investment higher, under special field condition, can't adopt underground jacking apparatus and ladle elevator mode handling ladle to finish the problem of RH refining treatment, the invention provides a kind of RH ladle Double Tops and rise device, can address the above problem preferably.
Purpose of the present invention is achieved by the following scheme:
A kind of RH ladle Double Tops rise device, comprise driving arm (1) and jacking cylinder (6), it is characterized in that, be provided with carriage (3) between ladle and the buggy ladle, described driving arm (1) is arranged at RH and handles the both sides that the position is positioned at buggy ladle, the head of described jacking cylinder (6) can touch driving arm (1) in lifting process, by jacking cylinder (6) jack-up driving arm (1), make driving arm (1) contact with the supporting base of carriage (3) both sides, thereby jack-up carriage (3) and the interior ladle (4) of carriage are realized carriage (3) and the motion of ladle (4) in vertical direction.
To further being improved to of above-mentioned foundation structure, jacking cylinder (6) is installed in the casing of rail brackets (2), and driving arm (1) is provided with guide wheel (7,8), and guide wheel (7,8) contacts with the guide rail of rail brackets (2).
To further being improved to of said structure, guide wheel (7,8) is arranged at the both sides of driving arm (1), the guide rail H shaped steel of described rail brackets (2), every group of guide wheel (7) that guide wheel is simultaneously rolled and contacted by the guide rail that constitutes perpendicular to ladle orbital direction and H shaped steel and is parallel to guide rail another side that ladle orbital direction and H shaped steel constitutes guide wheel (8) composition that the different directions that contact is provided with that rolls.
As the preferred construction design be, carriage (3) is the welded type box-structure, and ladle (4) is seated in the carriage (3), and buggy ladle (5) is provided with the liner and the locating device of carriage (3).
To further being optimized for of said structure, driving arm (1) is equipped with the protection isolation near a side of ladle (4).
More preferred design is, the lifting of jacking cylinder (6) synchronously and responsiveness control by the oil cylinder intrinsic displacement transmitter formation closed loop electric-hydraulic proportion of high frequency response proportional valve and each self-acting control independently.
The advantage of the present invention in practice is:
1. the present invention realizes the jacking of ladle and carriage by jacking cylinder is set on the ground of buggy ladle both sides, handle to finish liquid steel refining, compare with the hydraulic lifting hole of routine, need not to be provided with deep foundation, thereby need do a deep basal pit dark more than 7 meters on the ground when having avoided prior art to adopt plunger piston fluid pressure cylinder, plunger case is fixed on the hole problem at the end; And also solved some steel mill and can't adopt underground jacking apparatus because of underground pipe gallery is arranged handling station, and top rail level height is restricted, can not adopt the mode handling ladle of ladle elevator and finish the problem of RH refining treatment.
2. owing between buggy ladle and ladle, increased the ladle carriage, oil cylinder only needs jacking ladle carriage and the ladle that is seated in the carriage, make the required ability of bearing of oil cylinder be reduced, and owing to all be provided with jacking cylinder in the both sides of buggy ladle, thereby further shared the holding capacity of single oil cylinder, so need not the oil cylinder that uses diameter very big, thereby solved the long problem of delivery cycle of main pump in oil cylinder that available technology adopting major diameter oil cylinder brought and the hydraulic pressure pump control system, and reached the purpose that reduces cost.
3. in lifting process, because the guide wheel of driving arm both sides rolls on the guide surface of the both direction of rail brackets, from both direction the lifting of driving arm (1) is led, prevented rocking and, having avoided the molten steel generation of accident such as tumble of driving arm (1) because big displacement takes place the asynchronous carriages that cause of two jacking cylinders (6) (4).
4. hydraulic efficiency system has adopted independently that the oil cylinder intrinsic displacement transmitter of two high frequency response proportional valves and each self-acting control forms two closed loop electro-hydraulic proportional control systems, and the lifting that is used to control two oil cylinders synchronously and responsiveness.
The invention provides a kind of jacking mode that jacking cylinder is realized ladle and carriage that is provided with on the ground, solved the problem that in particular cases can't adopt underground jacking apparatus of the prior art and hoist lifting device, and underground jacking apparatus more of the prior art reduces cost, and simple in structure, easy for installation, operational safety, result of use are good.
Description of drawings
Fig. 1 is a front view of the present invention
Fig. 2 is a side-view of the present invention
Fig. 3 is an axonometric drawing of the present invention
Among the figure: 1-driving arm, 2-rail brackets, 3-carriage, 4-ladle, 5-buggy ladle, 6-jacking cylinder, 7-guide wheel, 8-guide wheel.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing:
With reference to front view synoptic diagram of the present invention shown in Figure 1, the carriage 3 that welds a box-structure is seated and is used to hold ladle 4 on the buggy ladle 5, and the guiding and the locating device of ladle carriage 3 are set on buggy ladle 5.
With reference to side-view synoptic diagram of the present invention shown in Figure 2, the both sides that are positioned at buggy ladle in RH processing position are provided with driving arm 1 and rail brackets 2.Jacking frame foundation is arranged on the ladle car track both sides, compares with the hydraulic lifting hole of routine, need not to be provided with deep foundation, and mechanism is simple.
Jacking cylinder 6 is installed in the casing of rail brackets 2, guide wheel 7,8 is arranged at the both sides of driving arm 1, the guide rail of rail brackets 2 adopts H shaped steel, every group of guide wheel 7 that guide wheel is simultaneously rolled and contacted by the guide rail that constitutes perpendicular to ladle orbital direction and H shaped steel and is parallel to guide rail another side that ladle orbital direction and H shaped steel constitutes guide wheel 8 compositions that the different directions that contact is provided with that roll.In lifting process, the guide wheel of driving arm both sides rolls on the guide surface of the both direction of rail brackets, from both direction the lifting of driving arm 1 is led, can prevent rocking and, effectively avoiding the molten steel generation of accident such as tumble of driving arm 1 because big displacements take place two jacking cylinders, the 6 asynchronous carriages that cause 4.
The head of jacking cylinder 6 can touch driving arm 1 in lifting process, by jacking cylinder 6 jack-up driving arms 1, make driving arm 1 contact, thereby the ladle 4 in jack-up carriage 3 and the carriage 3 is realized carriage 3 and the motion of ladle 4 in vertical direction with the supporting base of carriage 3 both sides., contact with jacking cylinder 6 respectively in the middle of the crossbeam of both sides during at ladle carriage 1, do not bear transverse force with the assurance framework by jacking.
Near a side of ladle 4 protection is installed at driving arm 1 and isolates, preferably adopt steel plate, prevent to cause jacking cylinder 6 to damage because molten steel spills as the isolated device of protection.
Hydraulic efficiency system adopts independently that the oil cylinder intrinsic displacement transmitter of two high frequency response proportional valves and each self-acting control forms two closed loop electro-hydraulic proportional control systems, is used to control the synchronous and responsiveness of lifting of two oil cylinders.
When adopting RH ladle Double Tops provided by the invention to rise device ladle is carried out jacking, when buggy ladle 5 carry ladle 4 arrive together with ladle carriage 3 handle the position after, Hydraulic Station drives jacking cylinder 6 with driving arm 1 jack-up, contact with ladle carriage 3 behind the certain stroke of driving arm 1 rising, subsequently, ladle carriage 3 is extremely handled height together with ladle 4 by jacking; After disposing, the piston rod of jacking cylinder 6 begins to descend, driving arm 1 drives ladle carriage 3 and ladle 4 together drops on the buggy ladle 5, ladle carriage liner on the buggy ladle 5 and locating device can guarantee the 3 decline energy accurate positionings of ladle carriage, and prevent the displacement of ladle 4 ladle carriage 3 in the lifting and the packet procedures that falls.
Need to prove; above-mentioned embodiment just to the exemplary illustration of this patent and and non-limiting its protection domain; those skilled in the art can make some local changes to this patent, so long as just available without creative work, all within the protection domain of this patent.
Claims (9)
1. RH ladle Double Tops rise device, comprise driving arm (1) and jacking cylinder (6), it is characterized in that, also comprise carriage (3) and rail brackets (2), be provided with described carriage (3) between ladle and the buggy ladle, described driving arm (1) is arranged at RH and handles the both sides that the position is positioned at buggy ladle, described jacking cylinder (6) is installed in the casing of rail brackets (2), driving arm (1) is provided with guide wheel (7,8), guide wheel (7,8) guide rail with rail brackets (2) contacts, the head of described jacking cylinder (6) can touch driving arm (1) in lifting process, by jacking cylinder (6) jack-up driving arm (1), make driving arm (1) contact with the supporting base of carriage (3) both sides, thereby jack-up carriage (3) and the interior ladle (4) of carriage are realized carriage (3) and the motion of ladle (4) in vertical direction.
2. a kind of RH ladle Double Tops as claimed in claim 1 rise device, it is characterized in that guide wheel (7,8) is arranged at the both sides of driving arm (1), the guide rail of described rail brackets (2) is a H shaped steel, every group of guide wheel (7) that guide wheel is simultaneously rolled and contacted by the guide rail that constitutes perpendicular to ladle orbital direction and H shaped steel and is parallel to guide rail another side that ladle orbital direction and H shaped steel constitutes guide wheel (8) composition that the different directions that contact is provided with that rolls.
3. a kind of RH ladle Double Tops as claimed in claim 1 or 2 rise device, it is characterized in that described carriage (3) is the welded type box-structure, and ladle (4) is seated in the carriage (3), and buggy ladle (5) is provided with the liner and the locating device of carriage (3).
4. a kind of RH ladle Double Tops as claimed in claim 1 or 2 rise device, it is characterized in that, described driving arm (1) is equipped with the protection isolation near a side of ladle (4).
5. a kind of RH ladle Double Tops as claimed in claim 3 rise device, it is characterized in that, described driving arm (1) is equipped with the protection isolation near a side of ladle (4).
6. a kind of RH ladle Double Tops as claimed in claim 1 or 2 rise device, it is characterized in that, the lifting of described jacking cylinder (6) synchronously and responsiveness control by the oil cylinder intrinsic displacement transmitter formation closed loop electric-hydraulic proportion of high frequency response proportional valve and each self-acting control independently.
7. a kind of RH ladle Double Tops as claimed in claim 3 rise device, it is characterized in that, the lifting of described jacking cylinder (6) synchronously and responsiveness control by the oil cylinder intrinsic displacement transmitter formation closed loop electric-hydraulic proportion of high frequency response proportional valve and each self-acting control independently.
8. a kind of RH ladle Double Tops as claimed in claim 4 rise device, it is characterized in that, the lifting of described jacking cylinder (6) synchronously and responsiveness control by the oil cylinder intrinsic displacement transmitter formation closed loop electric-hydraulic proportion of high frequency response proportional valve and each self-acting control independently.
9. a kind of RH ladle Double Tops as claimed in claim 5 rise device, it is characterized in that, the lifting of described jacking cylinder (6) synchronously and responsiveness control by the oil cylinder intrinsic displacement transmitter formation closed loop electric-hydraulic proportion of high frequency response proportional valve and each self-acting control independently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103065182A CN101451179B (en) | 2008-12-25 | 2008-12-25 | RH ladle double jacking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103065182A CN101451179B (en) | 2008-12-25 | 2008-12-25 | RH ladle double jacking apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101451179A CN101451179A (en) | 2009-06-10 |
| CN101451179B true CN101451179B (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008103065182A Active CN101451179B (en) | 2008-12-25 | 2008-12-25 | RH ladle double jacking apparatus |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201485193U (en) * | 2009-08-26 | 2010-05-26 | 上海宝钢工程技术有限公司 | Ladle hydraulic lifting device |
| CN101709354B (en) * | 2009-12-25 | 2012-09-05 | 中冶南方工程技术有限公司 | Transversal arrangement of ladle car track and vacuum chamber trolley replacing track |
| CN201694756U (en) * | 2010-07-01 | 2011-01-05 | 宝钢工程技术集团有限公司 | Ladle lifting device driven by hydraulic cylinder |
| CN102061360B (en) * | 2010-12-17 | 2012-07-18 | 中冶南方工程技术有限公司 | Method for lowering installation height of Ruhstahl Hausen (RH) vacuum processing device under low rail surface elevation condition |
| CN103981336B (en) * | 2014-05-24 | 2015-10-14 | 北京首钢国际工程技术有限公司 | The RH method for arranging technological process of form is gone out under a kind of vacuum chamber |
| CN106744498B (en) * | 2017-01-17 | 2019-03-29 | 北京无线电计量测试研究所 | Lifting device for laboratory and the method using device lifting test equipment |
| CN107400755B (en) * | 2017-06-21 | 2019-07-05 | 中冶南方工程技术有限公司 | Hoisting formula RH application of vacuum system and its hoisting structure and supporting arrangement |
| CN107840282A (en) * | 2017-11-30 | 2018-03-27 | 广州市远能物流自动化设备科技有限公司 | A kind of fluid pressure type lifting structures for AGV dollies |
| EP3566795A1 (en) * | 2018-05-07 | 2019-11-13 | Primetals Technologies Germany GmbH | Lifting device for a metallurgical ladle and treatment device for liquid metal |
| CN111471835A (en) * | 2020-04-10 | 2020-07-31 | 北京首钢股份有限公司 | RH furnace ladle lifting control method and system |
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| CN101451179A (en) | 2009-06-10 |
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