CN102632112B - Plate strip straightening equipment and precision adjusting method thereof - Google Patents

Plate strip straightening equipment and precision adjusting method thereof Download PDF

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Publication number
CN102632112B
CN102632112B CN201210112605.0A CN201210112605A CN102632112B CN 102632112 B CN102632112 B CN 102632112B CN 201210112605 A CN201210112605 A CN 201210112605A CN 102632112 B CN102632112 B CN 102632112B
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China
Prior art keywords
working roll
wedge
roll
equipment
roller
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CN201210112605.0A
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Chinese (zh)
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CN102632112A (en
Inventor
李良洪
严开勇
陈燕才
柳欣
卢开颜
祝洪川
刘洋
张航
李玉婷
黄炎锋
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武汉钢铁(集团)公司
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Priority to CN201210112605.0A priority Critical patent/CN102632112B/en
Publication of CN102632112A publication Critical patent/CN102632112A/en
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Publication of CN102632112B publication Critical patent/CN102632112B/en

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Abstract

The invention provides plate strip straightening equipment comprising a rack, a main pressing device, a work roller group, a supporting roller group, a roller seat, an upper inclined wedge adjusting device, a transmission mechanism, an upper box body and a lower box body. The main pressing device comprises four main hydraulic cylinders and the four main hydraulic cylinders are used for enabling the upper work roller group to generate different pressing amounts at an operation side and a transmission side. The upper inclined wedge adjusting device is arranged along the axially vertical direction of the upper working roller group. The upper inclined wedge adjusting device comprises a first upper inclined wedge, a first lower inclined wedge and a first oil cylinder. The first oil cylinder is used for driving the first upper inclined wedge and the first lower inclined wedge to move along a radial direction of the upper work roller group so as to increase the pressing amount of the upper work roller group. The plate strip straightening equipment can eliminate edge wave and middle wave defects of a plate strip. The invention further provides a precision adjusting method of the plate strip straightening equipment.

Description

A kind of strip equipment for straightening and precision regulation method thereof
Technical field
The present invention relates to a kind of equipment for straightening of sheet metal strip, relate in particular to a kind of strip equipment for straightening and precision regulation method thereof.
Background technology
The Main Current of hot-rolled product is to being roughly two aspects: supply cold rolling, silicon steel deep processing as raw material on the one hand, form flat cold-rolled sheet product; Hot rolled plate is directly used as merchantable timber and is supplied on the other hand.But owing to being subject to the impact of thermal stress, original hot rolled plate in various degree there is the defects such as deflection, wooden dipper song, wave, camber and twisted and internal residual stress, surface quality is not fine, therefore, generally need to carry out could supplying market after finishing.Hot rolling traverse is exactly one of important process means of alignment hot rolling original plate surface quality defect, and production line generally has 2 equipment for straightening, and 1 straightener is mainly responsible for uncoiler and is carried the continuous belt steel leveling of coming; Another straightener is mainly responsible for the leveling of plates after flying shear is sheared, 2 straightener structural principles are basic identical, be subject to the impact of traditional equipment for straightening structure, straightener is in the time of aligning high strength, wide plate width, thick size hot-rolled plate, often there is the defects such as wave is curved in steel plate edge and middle part, surface of steel plate also exists slivering problem simultaneously.
In addition, the plate shape of steel plate depends primarily on the precision of leveller equipment, and the precision of straightener depends on working roll roll surface precision and position adjustment precision, working roll roll surface precision can be processed solution by precision machine tool, determines that the key of working roll positional precision is backing roll assembly precision and testing calibration precision thereof.Because smoothing roll is worked for a long time under higher load condition, unavoidably cause wearing and tearing, pit and the backing roll of working roll roll surface to damage, in order to guarantee the precision of straightening steel plate, straightener need to regularly carry out inspection and maintenance, therefore, the precision adjustment of straightener is a large problem concerning steel sheet product quality.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of and can eliminate the limit wave of strip and strip equipment for straightening and the precision regulation method thereof of middle unrestrained defect.
The present invention for solving the problems of the technologies described above taked technical scheme is:
A kind of strip equipment for straightening, it comprises frame, main screwdown gear, working roll group, backing roll group, roller seat, transmission mechanism, upper box and lower box, described working roll group comprise top working roll group and with the staggered bottom working roll group of described top working roll group, described backing roll group comprises upper backup roll group and lower backing roll group, described roller seat comprises roller seat and lower roller base, it is characterized in that, described upper box comprises entablature, described lower box comprises sill, described main screwdown gear comprises four main hydraulic cylinders, described four main hydraulic cylinders are for making described top working roll group produce different drafts at fore side and transmission side, described strip equipment for straightening also comprises wedge adjusting equipment, described upper wedge adjusting equipment is arranged between entablature and upper roller seat, described upper wedge adjusting equipment is along the axially vertical direction setting of described top working roll group, the perspective plane of described upper wedge adjusting equipment is positioned at the middle part of strip, described upper wedge adjusting equipment comprises wedge on first, first time wedge, and first oil cylinder, described the first oil cylinder is for driving on described first wedge along moving with the axial vertical direction of described top working roll group, thereby increase the drafts of top working roll group to strip middle part by the motion of first time wedge.
In such scheme, described strip equipment for straightening also comprises multiple lower wedge adjusting equipments, described multiple lower wedge adjusting equipment is arranged between sill and lower roller base, the corresponding lower wedge adjusting equipment of each bottom working roll of bottom working roll group, each lower wedge adjusting equipment is along the axial direction setting of corresponding with it bottom working roll, each lower wedge adjusting equipment comprises wedge on second, second time wedge, and second oil cylinder, described the second oil cylinder moves along the axial direction of corresponding with it bottom working roll for promoting described second time wedge, thereby by wedge on second drive described bottom working roll along with bottom working roll axially vertical direction move towards strip.
A precision regulation method for above-mentioned strip equipment for straightening, is characterized in that, it comprises the following steps:
1) off-line precision is adjusted:
Pull down top working roll group or bottom working roll group, upper roller seat or lower roller base are placed on the workbench of numerical control gantry mill, roller seat or lower roller base reference position on centering, numerical control shows zero clearing, then detects one by one the peak data of each backing roll of upper backup roll group or lower backing roll group with amesdial, levels up supporting roller bearing seat bottom according to detecting data correspondence, its roll surface is reached unanimity, return to numerical control gantry milling workbench and again detect, check that whether data are consistent, until meet the requirements;
Top working roll group after reconditioning or bottom working roll group are assembled on upper roller seat or lower roller base; Two benchmark leveling ruler symmetries parallel with working roll group axis are placed on to roller seat reference position, make the definite plane of two benchmark leveling rulers parallel with the datum plane of working roll group; Again the two ends of measuring leveling ruler are placed on benchmark leveling ruler, make to measure leveling ruler vertical with benchmark leveling ruler; Spacing distance between testing roll surface and measurement leveling ruler, regulates adjusting nut according to detecting data, to reach the object of working roll roll surface level;
2) online precision adjustment:
In the plane of bottom working roll group, place a standard detection plate, regulate second time wedge in each lower wedge adjusting equipment by the second oil cylinder, make the height and position H of the bottom working roll corresponding with it in setting during by unit with steel lower surface, keep each bottom working roll to contact with standard detection plate, after accurate detection height and position H is errorless, lock the second oil cylinder position, main screwdown gear slowly moves down, make top working roll group and standard detection plate close contact, the position of top working roll group is recorded, main screwdown gear is raised to straightener maximum open position, precision is adjusted complete.
The invention has the beneficial effects as follows:
1. in the time that " limit wave " defect appears in a certain side of straightening steel plate, utilize the active side of main screwdown gear different with the drafts of transmission side master cylinder, reach the object of aligning " limit wave "; In the time there is " middle wave " defect in straightening steel plate middle part, upper wedge adjusting equipment moves, thereby increase working roll drafts reaches the object of straightening steel plate " middle wave ", therefore, this strip equipment for straightening can be eliminated limit wave and the middle unrestrained defect of strip, improves strip quality.
2. go up wedge adjusting equipment and can compensate working roll in aligning process and entablature thereof and affected by straightening force and the flexural deformation that produces, make working roll in aligning process, keep the body of roll to be parallel to each other the leveling effect that reaches desirable.
3. coordinate precision machine tool by special tooling, offline inspection is adjusted backing roll, working roll flatness error, then adjusts online straightener lower wedge adjusting device, and calibration operation roller reference position reaches the object of recovering straightener precision.
Accompanying drawing explanation
The front view of the strip equipment for straightening that Fig. 1 provides for the embodiment of the present invention.
The side view of the strip equipment for straightening that Fig. 2 provides for the embodiment of the present invention.
The backing roll flatness of the strip equipment for straightening that Fig. 3 provides for the embodiment of the present invention detects schematic diagram.
The working roll flatness of the strip equipment for straightening that Fig. 4 provides for the embodiment of the present invention detects schematic diagram.
Fig. 5 is the schematic diagram of Fig. 4 along another view directions.
The specific embodiment
Below in conjunction with accompanying drawing and case study on implementation, the invention will be further described, and certain following embodiment should not be construed as limitation of the present invention.
As depicted in figs. 1 and 2, a kind of strip equipment for straightening that it provides for the embodiment of the present invention, it comprises frame 1, main screwdown gear 2, working roll group, backing roll group, roller seat, upper wedge adjusting equipment 3, four lower wedge adjusting equipments 4, transmission mechanism 8, upper box 9 and lower boxes 10.
Working roll group comprise top working roll group 6-1 and with the staggered bottom working roll group of top working roll group 6-1 7-1.In this enforcement, top working roll group 6-1 comprises three top working rolls, and bottom working roll group 7-1 comprises four bottom working rolls.Backing roll group comprises upper backup roll group 6-2 and lower backing roll group 7-2.Roller seat comprises roller seat 6 and lower roller base 7.Transmission mechanism 8, to top working roll group 6-1 and bottom working roll group 7-1 transmitting power, for aligning process provides required moment, and makes to be with steel to pass equipment for straightening.
Main screwdown gear 2 comprises four main hydraulic cylinder 2-1.Four main hydraulic cylinder 2-1 are distributed in the two ends of fore side and the two ends of transmission side.Upper box 9 comprises entablature 9-1.Four main hydraulic cylinder 2-1 are connected with entablature 9-1.The axle of top working roll group 6-1 is all connected with upper box 9 with the axle of upper backup roll group 6-2.Four main hydraulic cylinder 2-1 promote entablature 9-1 and move downward, thereby drive upper backup roll group 6-2 and top working roll group 6-1 to move downward.Regulate stroke and the pressure of four main hydraulic cylinder 2-1 diverse locations, can make top working roll group 6-1 produce different drafts at fore side and transmission side, reach the object of aligning " limit wave ".
Upper wedge adjusting equipment 3 is arranged between entablature 9-1 and upper roller seat 6.Upper wedge adjusting equipment 3 along with axially vertical direction setting of top working roll group 6-1.The perspective plane of upper wedge adjusting equipment 3 is positioned at the middle part with steel.Upper wedge adjusting equipment 3 comprises wedge 3-1 on first, first time wedge 3-2 and the first oil cylinder 3-3.The first oil cylinder 3-3 is for driving on first wedge 3-1 along moving with the axial vertical direction of top working roll group 6-1, thereby increase the drafts of top working roll group 6-1 to steel plate middle part by the motion of first time wedge 3-2, reach the object of straightening steel plate " middle wave ".
The corresponding lower wedge adjusting equipment 4 of each bottom working roll of bottom working roll group 7-1.The quantity of lower wedge adjusting equipment 4 is corresponding with bottom working roll quantity, is four in the present embodiment.Lower box 10 comprises sill 10-1.Four lower wedge adjusting equipments 4 are arranged between sill 10-1 and lower roller base 7.Each lower wedge adjusting equipment 4 is along the axial direction setting of corresponding with it bottom working roll.Each lower wedge adjusting equipment 4 comprises wedge 4-1 on second, second time wedge 4-2 and the second oil cylinder 4-3.The second oil cylinder 4-3 moves along the axial direction of corresponding with it bottom working roll for promoting second time wedge 4-2, thus by wedge 4-1 on second drive this bottom working roll along with bottom working roll axially vertical direction move towards steel plate.
The precision regulation method of this strip equipment for straightening comprises the following steps:
1) off-line precision is adjusted:
Pull down top working roll group or bottom working roll group, upper roller seat or lower roller base are placed on the workbench of numerical control gantry mill, roller seat or lower roller base reference position on centering, numerical control shows zero clearing, then with amesdial detect one by one upper backup roll group or lower backing roll group each backing roll peak data (as shown in Figure 3, the present embodiment is take upper backup roll group as example, the direction of arrow is steel plate Way in), level up supporting roller bearing seat bottom according to detecting data correspondence, its roll surface is reached unanimity, returning to numerical control gantry milling workbench detects again, check that whether data are consistent, until meet the requirements,
Top working roll group after reconditioning or bottom working roll group are assembled on upper roller seat or lower roller base; Two benchmark leveling ruler 12 symmetries parallel with working roll group axis are placed on to roller seat reference position, make the definite plane of two benchmark leveling rulers 12 parallel with the datum plane of working roll group; Again the two ends of measuring leveling ruler 13 are placed on benchmark leveling ruler 12, make to measure leveling ruler 13 vertical with benchmark leveling ruler 12; Spacing distance (as shown in Figure 4 and Figure 5) between testing roll surface and measurement leveling ruler 13, regulates adjusting nut according to detecting data, to reach the object of working roll roll surface level;
2) online precision adjustment:
In the plane of bottom working roll group, place a standard detection plate 11, regulate second time wedge in each lower wedge adjusting equipment by the second oil cylinder, make the height and position H(of the bottom working roll corresponding with it in setting during by unit with steel lower surface as shown in Figure 1), keep each bottom working roll to contact with standard detection plate 11, after accurate detection height and position H is errorless, lock the second oil cylinder position, main screwdown gear slowly moves down, make top working roll group and standard detection plate 11 close contacts, the position of top working roll group is recorded, main screwdown gear is raised to straightener maximum open position, precision is adjusted complete.

Claims (1)

1. strip equipment for straightening and a precision regulation method thereof, is characterized in that: strip equipment for straightening comprises frame, main screwdown gear, working roll group, backing roll group, roller seat, transmission mechanism, upper box and lower box, described working roll group comprise top working roll group and with the staggered bottom working roll group of described top working roll group, described backing roll group comprises upper backup roll group and lower backing roll group, described roller seat comprises roller seat and lower roller base, it is characterized in that, described upper box comprises entablature, described lower box comprises sill, described main screwdown gear comprises four main hydraulic cylinders, described four main hydraulic cylinders are for making described top working roll group produce different drafts at fore side and transmission side, described strip equipment for straightening also comprises wedge adjusting equipment, described upper wedge adjusting equipment is arranged between entablature and upper roller seat, described upper wedge adjusting equipment is along the axially vertical direction setting of described top working roll group, the perspective plane of described upper wedge adjusting equipment is positioned at the middle part of strip, described upper wedge adjusting equipment comprises wedge on first, first time wedge, and first oil cylinder, described the first oil cylinder is for driving on described first wedge along moving with the axial vertical direction of described top working roll group, thereby increase the drafts of top working roll group to strip middle part by the motion of first time wedge,
Described strip equipment for straightening also comprises multiple lower wedge adjusting equipments, described multiple lower wedge adjusting equipment is arranged between sill and lower roller base, the corresponding lower wedge adjusting equipment of each bottom working roll of bottom working roll group, each lower wedge adjusting equipment is along the axial direction setting of corresponding with it bottom working roll, each lower wedge adjusting equipment comprises wedge on second, second time wedge, and second oil cylinder, described the second oil cylinder moves along the axial direction of corresponding with it bottom working roll for promoting described second time wedge, thereby by wedge on second drive described bottom working roll along with bottom working roll axially vertical direction move towards strip,
The precision regulation method of strip equipment for straightening comprises the following steps:
1) off-line precision is adjusted:
Pull down top working roll group or bottom working roll group, upper roller seat or lower roller base are placed on the workbench of numerical control gantry mill, roller seat or lower roller base reference position on centering, numerical control shows zero clearing, then detects one by one the peak data of each backing roll of upper backup roll group or lower backing roll group with amesdial, levels up supporting roller bearing seat bottom according to detecting data correspondence, its roll surface is reached unanimity, return to numerical control gantry milling workbench and again detect, check that whether data are consistent, until meet the requirements;
Top working roll group after reconditioning or bottom working roll group are assembled on upper roller seat or lower roller base; Two benchmark leveling ruler symmetries parallel with working roll group axis are placed on to roller seat reference position, make the definite plane of two benchmark leveling rulers parallel with the datum plane of working roll group; Again the two ends of measuring leveling ruler are placed on benchmark leveling ruler, make to measure leveling ruler vertical with benchmark leveling ruler; Spacing distance between testing roll surface and measurement leveling ruler, regulates adjusting nut according to detecting data, to reach the object of working roll roll surface level;
2) online precision adjustment:
In the plane of bottom working roll group, place a standard detection plate, regulate second time wedge in each lower wedge adjusting equipment by the second oil cylinder, make the height and position H of the bottom working roll corresponding with it in setting during by unit with steel lower surface, keep each bottom working roll to contact with standard detection plate, after accurate detection height and position H is errorless, lock the second oil cylinder position, main screwdown gear slowly moves down, make top working roll group and standard detection plate close contact, the position of top working roll group is recorded, main screwdown gear is raised to straightener maximum open position, precision is adjusted complete.
CN201210112605.0A 2012-04-17 2012-04-17 Plate strip straightening equipment and precision adjusting method thereof CN102632112B (en)

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Application Number Priority Date Filing Date Title
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104148449A (en) * 2014-08-16 2014-11-19 张家港市金邦铝业有限公司 Upper roller stand adjusting device for precise leveler
CN104942048B (en) * 2015-06-30 2017-04-19 中国二十冶集团有限公司 Disassembling method for upper slanting wedge of roller type cold straightening machine
CN106363042B (en) * 2015-07-21 2018-10-02 宝山钢铁股份有限公司 Withdrawal straightening machine drafts accuracy control method
CN106991266A (en) * 2016-01-21 2017-07-28 宝山钢铁股份有限公司 A kind of roll surface optimization of profile method of hot rolling straightener back up roll system
CN105817499B (en) * 2016-03-22 2018-02-13 重庆钢铁(集团)有限责任公司 A kind of 11 roller straightener roller system school zero method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2502816Y (en) * 2001-09-28 2002-07-31 中国第二重型机械集团公司 Variable roller spacing straightening machine for medium plate
EP1372879A1 (en) * 2001-03-21 2004-01-02 SMS Demag Aktiengesellschaft Pre-straightening machine for straightening, in particular, the beginning and end of rolled metal strips or sheet metal strips
CN1814367A (en) * 2006-03-02 2006-08-09 太原科技大学 15.Roll combined straightening machine
CN201394595Y (en) * 2009-03-19 2010-02-03 宝山钢铁股份有限公司 Wide-thick plate finishing straightening machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1372879A1 (en) * 2001-03-21 2004-01-02 SMS Demag Aktiengesellschaft Pre-straightening machine for straightening, in particular, the beginning and end of rolled metal strips or sheet metal strips
CN2502816Y (en) * 2001-09-28 2002-07-31 中国第二重型机械集团公司 Variable roller spacing straightening machine for medium plate
CN1814367A (en) * 2006-03-02 2006-08-09 太原科技大学 15.Roll combined straightening machine
CN201394595Y (en) * 2009-03-19 2010-02-03 宝山钢铁股份有限公司 Wide-thick plate finishing straightening machine

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Effective date of registration: 20170712

Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan

Patentee after: Wuhan iron and Steel Company Limited

Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang

Patentee before: Wuhan Iron & Steel (Group) Corp.

Effective date of registration: 20170712

Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan

Patentee after: Wuhan iron and Steel Company Limited

Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang

Patentee before: Wuhan Iron & Steel (Group) Corp.

CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20140528

Termination date: 20190417