CN104249139A - Method for controlling gap between upper framework and lower framework of continuous casting hydraulic fan-shaped section - Google Patents
Method for controlling gap between upper framework and lower framework of continuous casting hydraulic fan-shaped section Download PDFInfo
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- CN104249139A CN104249139A CN201310261079.9A CN201310261079A CN104249139A CN 104249139 A CN104249139 A CN 104249139A CN 201310261079 A CN201310261079 A CN 201310261079A CN 104249139 A CN104249139 A CN 104249139A
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Abstract
The invention relates to a method for controlling a gap between an upper framework and a lower framework of a continuous casting hydraulic fan-shaped section. The method comprises the following steps of arranging guide mounting plates and guide blocks at the front and back sides, corresponding to the front and back sides of the lower framework, of the upper framework of the hydraulic fan-shaped section; taking the upper framework and the lower framework of the fan-shaped section off line, putting the upper framework and the lower framework on a standard maintenance table, and arranging a maintenance framework and a jack at the two sides of the standard maintenance table; opening a jack to jack up the upper framework to the outlet direction of the fan-shaped section, stopping jacking when an upper roll system and a lower roll system of the fan-shaped section are aligned, and measuring a gap value between each guide block of the upper framework and the inside surface of a guide plate of the lower framework; disassembling the fan-shaped section, and hoisting the upper framework away; loosening a fixing bolt of each guide block, selecting an adjusting gasket by using the gap value as the thickness value, inserting the adjusting gasket between each guide block and the corresponding guide mounting plate of the upper framework, and tightening each fixing bolt, so as to close the fan-shaped section. The method has the advantages that on the premise of aligning the roll systems of the upper framework and the lower framework of the fan-shaped section, the influence on the lifting operation and the implementation of the slight pressing function is avoided, and the purposes of improving the accuracy control level of the roll gap and overcoming the defect of a gap between toothed rolls are realized.
Description
Technical field
The present invention relates to conticaster technical field, particularly a kind of continuous casting hydraulic fan-shaped section of upper and lower frames clearance control method.
Background technology
Conticaster is for realizing soft reduction technique, segment roll gap adopts hydraulic control mode, the upper and lower frames of fan-shaped section is connected by 4 columns with hoist cylinder, and the spherical bearing of connected mode employing activity between column and framework, centering (i.e. the centering of up-down rollers system) before and after fan-shaped section upper and lower frames and between left and right is by being arranged at the guiding composition of fan-shaped section upper and lower frames respectively, for considering zeroing, the demand of the fan-shaped section lifting process such as slighter compress enforcement, the control of these guiding clearances is just fuzzyyer in the design process, fan-shaped section install and reach the standard grade after because upper frame is from the reason in weight and various gap, define the zigzag defect of serious roll gap.
This structural design of fan-shaped section is conducive to protecting hoist cylinder not damage by the impact of radial load in casting process or exception handling procedure; but the defect of zigzag roll gap; the cold conditions of casting machine roll gap is managed very difficult; roll gap precision controlling is relatively poor and unstable; in casting process, the local pressure phenomenon of fan-shaped section and roller is serious, causes very large impact service life to slab quality and fan-shaped section.
Along with the development of world's continuous casting process, many conticasters all have employed the form of hydraulic fan-shaped section, hydraulic fan-shaped section of various design all have employed certain technology to control the generation of this zigzag roll gap, the Smart fan-shaped section comprising VAI employs flexible link structure, the powerful side guide frame of the Syberlink fan-shaped section of western mark and three articulated structures of Da Nieli fan-shaped section etc.The mode that these fan-shaped section control zigzag roll gap is different, and the effect reached also has larger difference.And the situation of fan-shaped section in actual production, use procedure is also therefore different.
Summary of the invention
The object of the present invention is to provide a kind of continuous casting hydraulic fan-shaped section of upper and lower frames clearance control method, not only fan-shaped section upper and lower frames is issued in the precondition that roller system aligns and does not affect descending operation and slighter compress Function implementation simultaneously but also dentation roll gap defect can be eliminated, improve the object of roll gap precision controlling level.
For achieving the above object, technical scheme of the present invention is:
A kind of continuous casting hydraulic fan-shaped section of upper and lower frames clearance control method, before and after described hydraulic fan-shaped section of upper frame, the side, side, front and back of the corresponding underframe in side is established guiding installing plate and is connected guide pad thereon by set bolt; Be positioned on standard repair platform by fan-shaped section upper and lower frames off-line, these standard repair platform both sides establish maintaining frame, and wherein establish can the jack of jacking upper frame on the maintaining frame top of corresponding fan-shaped section entrance side; Open jack, by upper frame progressively to the jacking of fan-shaped section Way out, when the upper roller system of fan-shaped section upper frame aligns with the lower roll system center of underframe, stop jack jacking, the guide pad simultaneously on measurement upper frame guiding installing plate and the gap width between underframe guide plate medial surface; Then carry out fan-shaped section disintegration, upper frame is hung; Unscrew fixing upper frame guiding installing plate on guide pad set bolt, select adjustment pad according to gap width as one-tenth-value thickness 1/10, and will adjust pad insertion guide pad and upper frame lead between installing plate, then tighten set bolt, finally make fan-shaped section close up.
Further, the guiding installing plate top outside the upper frame of corresponding fan-shaped section outlet side arranges upper frame measuring basis block; Outside guide plate outside the underframe of corresponding fan-shaped section outlet side, measurement pedestal is set, and, measure pedestal lateral surface and vertically establish dip stick; Based on being a definite value between dip stick and upper frame measuring basis block after continuous casting hydraulic fan-shaped section of normal mounting; Open jack, by upper frame progressively to the jacking of fan-shaped section Way out, measure the spacing between dip stick and upper frame measuring basis block simultaneously, when this spacing equals described definite value, stop jack jacking.
Again, the guide pad Cross section Design that described hydraulic fan-shaped section of upper frame of corresponding fan-shaped section outlet side leads on installing plate becomes semicircle cylinder.
In addition, described guide pad offers to fat hole and be communicated with it, be positioned at surface give fat groove.
On described adjustment pad, corresponding described guide pad offers grease holes to fat hole, and on adjustment pad, the corresponding described guide pad set bolt in both sides offers slot.
The invention has the beneficial effects as follows:
Cause the defect mainly mode of fan-shaped section upper and lower frames connection and the control of guiding clearance, front and back of casting stream zigzag roll gap; Connected mode is difficult to change, even if use the flexible link as VAI, also can cause the sequelae such as the abnormal plastic deformation of radial force lower link and the damage of oil cylinder.And guiding clearance control difficulty is larger, when outlet gap is larger, fan-shaped section is installed to after on casting machine, the basic framework of its underframe and casting machine is fixed, and because the upper frame that setting angle problem causes always makes upper frame tilt to cast direction from the throwing resistance of gravity and casting process, cause dislocation and the zigzag roll gap defect of up-down rollers system.
Therefore, the raising of the present invention to the gap preset precision of hydraulic fan-shaped section with zigzag roll gap defect characteristic is very crucial, by simulating online stressed tendency in off-line maintenance process, and by measuring, the zigzag defect that adjustment ensures the alignment that fan-shaped section is installed to up-down rollers system after on casting machine and therefore causes, favourable to equipment protection time extremely stressed in the roll gap accuracy control under the non-casting condition of casting stream and casting process, simultaneously, the elimination of serious zigzag roll gap, also be conducive to alleviating the stressed uneven roller caused of fan-shaped section in casting process, the mass defects such as the implosion that the damage of bearing and slab discontinuity cause, thus improve the service life of fan-shaped section, ensure slab quality, improve caster work rate.
Accompanying drawing explanation
Fig. 1 is online or the schematic diagram of fan-shaped section upper and lower frames under casting condition.
Fig. 2 is the schematic diagram of fan-shaped section upper and lower frames under off-line maintenance state.
Fig. 3 is the close-up schematic view of dip stick and upper frame measuring basis block in the inventive method.
Fig. 4 is the cooperation schematic diagram of guide pad of the present invention and adjustment pad.
Fig. 5 is the side view of guide pad of the present invention.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is the front view that the present invention adjusts pad.
Detailed description of the invention
See Fig. 1 ~ Fig. 7, a kind of continuous casting of the present invention hydraulic fan-shaped section of upper and lower frames clearance control method, before and after described hydraulic fan-shaped section of upper frame, the side, side, front and back of the corresponding underframe 2 in side is established guiding installing plate 3 and is connected guide pad 4 thereon by set bolt; Be positioned on standard repair platform 100 by fan-shaped section upper and lower frames off-line, maintaining frame 200 is established in these standard repair platform 100 both sides, and wherein establish can the jack 300 of jacking upper frame 1 maintaining frame 200 top of corresponding fan-shaped section entrance side; Open jack 300, by upper frame 1 progressively to the jacking of fan-shaped section Way out, when the upper roller system 10 of fan-shaped section upper frame 1 aligns with lower roll system 20 center of underframe 2, stop jack 300 jacking, measure the gap width L that upper frame 1 leads between guide pad 4 on installing plate 3 and underframe 2 guide plate 5 medial surface simultaneously; Then carry out fan-shaped section disintegration, upper frame 1 is hung; Unscrew the guide pad set bolt that fixing upper frame 1 leads on installing plate 3, adjustment pad 6 is selected as one-tenth-value thickness 1/10 according to gap width L, and adjustment pad 6 is inserted guide pad 4 and upper frame leads between installing plate 3, then tighten set bolt, finally make fan-shaped section close up.
Further, guiding installing plate 3 top outside the upper frame 1 of corresponding fan-shaped section outlet side arranges upper frame measuring basis block 7; Arrange outside guide plate 5 outside the underframe 2 of corresponding fan-shaped section outlet side and measure pedestal 8, and, measure pedestal 8 lateral surface and vertically establish dip stick 9; Based on being a definite value l between dip stick 9 and upper frame measuring basis block 7 after continuous casting hydraulic fan-shaped section of normal mounting
0; Open jack 300, by upper frame 1 progressively to the jacking of fan-shaped section Way out, measure the spacing l between dip stick 9 and upper frame measuring basis block 8 simultaneously
1, as this spacing l
1equal described definite value l
0time, stop jack 300 jacking.
See Fig. 5, Fig. 6, guide pad 4 Cross section Design on described hydraulic fan-shaped section of upper frame guiding installing plate 3 of corresponding fan-shaped section outlet side becomes semicircle cylinder.
Described guide pad 4 offers fixed bolt hole 41, to fat hole 42 and be communicated with it, be positioned at surface give fat groove 43.
See Fig. 7, on described adjustment pad 6, corresponding described guide pad offers grease holes 61 to fat hole 41, and on adjustment pad 6, the corresponding described guide pad set bolt in both sides offers slot 62.
Technology used in the present invention, equipment are ripe, and processing technology is not difficult.The use of the precision controlled segment roll gap, the assurance of casting machine state, the control of slab quality and sector section equipment is significant.
Claims (5)
1. continuous casting hydraulic fan-shaped section of upper and lower frames clearance control method, before and after described hydraulic fan-shaped section of upper frame, the side, front and back of the corresponding underframe in side is established guiding installing plate and is connected guide pad thereon by set bolt; Be positioned on standard repair platform by fan-shaped section upper and lower frames off-line, these standard repair platform both sides establish maintaining frame, and wherein establish can the jack of jacking upper frame on the maintaining frame top of corresponding fan-shaped section entrance side; Open jack, by upper frame progressively to the jacking of fan-shaped section Way out, when the upper roller system of fan-shaped section upper frame aligns with the lower roll system center of underframe, stop jack jacking, the guide pad simultaneously on measurement upper frame guiding installing plate and the gap width between underframe guide plate medial surface; Then carry out fan-shaped section disintegration, upper frame is hung; Unscrew fixing upper frame guiding installing plate on guide pad set bolt, select adjustment pad according to gap width as one-tenth-value thickness 1/10, and will adjust pad insertion guide pad and upper frame lead between installing plate, then tighten set bolt, finally make fan-shaped section close up.
2. continuous casting hydraulic fan-shaped section of upper and lower frames clearance control method as claimed in claim 1, it is characterized in that, the guiding installing plate top outside the upper frame of corresponding fan-shaped section outlet side arranges upper frame measuring basis block; Outside guide plate outside the underframe of corresponding fan-shaped section outlet side, measurement pedestal is set, and, measure pedestal lateral surface and vertically establish dip stick; Based on being a definite value between dip stick and upper frame measuring basis block after continuous casting hydraulic fan-shaped section of normal mounting; Open jack, by upper frame progressively to the jacking of fan-shaped section Way out, measure the spacing between dip stick and upper frame measuring basis block simultaneously, when this spacing equals described definite value, stop jack jacking.
3. continuous casting hydraulic fan-shaped section of upper and lower frames clearance control method as claimed in claim 1, is characterized in that, the guide pad Cross section Design on described hydraulic fan-shaped section of upper frame guiding installing plate of corresponding fan-shaped section outlet side becomes semicircle cylinder.
4. the hydraulic fan-shaped section of upper and lower frames clearance control method of the continuous casting as described in claim 1 or 3, is characterized in that, described guide pad offers to fat hole and be communicated with it, be positioned at surface give fat groove.
5. the hydraulic fan-shaped section of upper and lower frames clearance control method of the continuous casting as described in claim 1 or 3, it is characterized in that, on described adjustment pad, corresponding described guide pad offers grease holes to fat hole, and on adjustment pad, the corresponding described guide pad set bolt in both sides offers slot.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310261079.9A CN104249139B (en) | 2013-06-26 | 2013-06-26 | A kind of company casts hydraulic fan-shaped section of upper and lower frames clearance control method |
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| CN201310261079.9A CN104249139B (en) | 2013-06-26 | 2013-06-26 | A kind of company casts hydraulic fan-shaped section of upper and lower frames clearance control method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708302A (en) * | 2015-02-15 | 2015-06-17 | 莱芜钢铁集团有限公司 | Method for adjusting fan-shaped section roller assembly parts offline |
| CN109731475A (en) * | 2019-02-20 | 2019-05-10 | 江苏康微纳米科技有限公司 | A kind of nanofiltration membrane film wire preparation facilities and production technology |
| CN110686508A (en) * | 2018-07-04 | 2020-01-14 | 中国二十冶集团有限公司 | Method for mounting lower frame of annular heating furnace |
| CN111438344A (en) * | 2019-01-16 | 2020-07-24 | 宝山钢铁股份有限公司 | Measuring device and measuring method for hot roll gap of hydraulic fan-shaped section of continuous casting machine |
| CN113118397A (en) * | 2021-03-15 | 2021-07-16 | 上海二十冶建设有限公司 | Integral base of vertical continuous casting machine light pressure module and adjusting method thereof |
| CN113976849A (en) * | 2021-11-09 | 2022-01-28 | 山东钢铁集团日照有限公司 | Zero calibration method and device for inner arc frame of slab continuous casting sector section |
| CN115090840A (en) * | 2022-06-28 | 2022-09-23 | 武汉钢铁有限公司 | Continuous casting machine fan-shaped section mounting base deformation online monitoring and out-of-tolerance judging system |
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| CN201653331U (en) * | 2010-04-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Gap measuring gauge of upper frame and lower frame of hydraulic fan-shaped section |
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| CN101210809A (en) * | 2006-12-28 | 2008-07-02 | 上海建设路桥机械设备有限公司 | Continuous casting machine sector section centering measurement method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708302A (en) * | 2015-02-15 | 2015-06-17 | 莱芜钢铁集团有限公司 | Method for adjusting fan-shaped section roller assembly parts offline |
| CN110686508A (en) * | 2018-07-04 | 2020-01-14 | 中国二十冶集团有限公司 | Method for mounting lower frame of annular heating furnace |
| CN110686508B (en) * | 2018-07-04 | 2023-11-21 | 中国二十冶集团有限公司 | Method for installing lower frame of annular heating furnace |
| CN111438344A (en) * | 2019-01-16 | 2020-07-24 | 宝山钢铁股份有限公司 | Measuring device and measuring method for hot roll gap of hydraulic fan-shaped section of continuous casting machine |
| CN109731475A (en) * | 2019-02-20 | 2019-05-10 | 江苏康微纳米科技有限公司 | A kind of nanofiltration membrane film wire preparation facilities and production technology |
| CN113118397A (en) * | 2021-03-15 | 2021-07-16 | 上海二十冶建设有限公司 | Integral base of vertical continuous casting machine light pressure module and adjusting method thereof |
| CN113118397B (en) * | 2021-03-15 | 2023-01-31 | 上海二十冶建设有限公司 | Integral base of vertical continuous casting machine light pressure module and adjusting method thereof |
| CN113976849A (en) * | 2021-11-09 | 2022-01-28 | 山东钢铁集团日照有限公司 | Zero calibration method and device for inner arc frame of slab continuous casting sector section |
| CN113976849B (en) * | 2021-11-09 | 2023-02-28 | 山东钢铁集团日照有限公司 | Zero calibration method and device for inner arc frame of slab continuous casting sector section |
| CN115090840A (en) * | 2022-06-28 | 2022-09-23 | 武汉钢铁有限公司 | Continuous casting machine fan-shaped section mounting base deformation online monitoring and out-of-tolerance judging system |
| CN115090840B (en) * | 2022-06-28 | 2023-06-16 | 武汉钢铁有限公司 | Online monitoring and out-of-tolerance judging system for deformation of sector section mounting base of continuous casting machine |
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| CN104249139B (en) | 2016-06-01 |
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