CN100467152C - Strip mill of using combined type hydraulic cylinder of bending roller - Google Patents
Strip mill of using combined type hydraulic cylinder of bending roller Download PDFInfo
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- CN100467152C CN100467152C CNB2007100122846A CN200710012284A CN100467152C CN 100467152 C CN100467152 C CN 100467152C CN B2007100122846 A CNB2007100122846 A CN B2007100122846A CN 200710012284 A CN200710012284 A CN 200710012284A CN 100467152 C CN100467152 C CN 100467152C
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Abstract
The invention relates to a hoop rolling mill that adopts compound bowed roller hydro-cylinder. The upper and down working rollers of rolling machine are installed in the middle of the housing window through upper and down roller base. The hydro-cylinder is installed between upper and down roller base. The structure contains four compound bowed roller hydro-cylinders. Upper and lower ends of the hydro-cylinder identity are installed upper pressure board and down pressure board, which has piston rod and connecting stick. While working, the upper pressure board holds the upper working roller shaft base and the down pressure board holds the down working roller shaft base. The invention has the advantages of novel structure, small maintaining working and convenient to replace the roller.
Description
Technical field
The strip mill of employing combined type roller hydraulic cylinder of the present invention belongs to the hot-rolled strip steel equipment in the metallurgy industry.
Background technology
The present traditional strip mill of metallurgy industry is made up of upper and lower working roll and upper and lower backing roll and memorial archway, upper and lower working roll bearing block, hydraulic cylinder.Upper and lower working roll bearing block is supported by hydraulic cylinder respectively, and the inlet of each working roll bearing block or outlet side need be arranged two hydraulic cylinders arranged side by side.Cylinder head withstands the bearing block of working roll during hydraulic cylinder works, because working roll has upper and lower backing roll to support, bearing block is subjected to the top power of hydraulic cylinder, forces working roller bending.Crooked working roll owing to the adding of being rolled the band steel becomes directly, makes the steel band that rolls out evenly smooth when milling train is worked.Each working roll supports with regard to 8 hydraulic cylinders of needs like this, and whole rolling just needs 16 hydraulic cylinders that roller is used are installed, shown in accompanying drawing 5, accompanying drawing 6.Because hydraulic cylinder quantity is more, causes pipeline various, increase the trouble point, and maintenance is difficulty very.At existing problem in the above-mentioned prior art, the strip mill of a kind of novel employing combined type roller hydraulic cylinder of research and design, existing problem is very necessary in the prior art thereby overcome.
Summary of the invention
In view of existing problem in the above-mentioned prior art, the strip mill that the objective of the invention is a kind of novel employing combined type roller hydraulic cylinder of research and design, thus solve that the existing hydraulic cylinder quantity pipelines that cause various more in the prior art, the trouble point is many, overhaul problems such as difficulty.The strip mill of employing combined type roller hydraulic cylinder of the present invention, its top working roll and bottom working roll are installed in the middle part of memorial archway by top working roll bearing block and bottom working roll bearing block.Upper support roller and lower support roller are installed in the upper and lower both sides of top working roll and bottom working roll.The hydraulic cylinder that roller is used then is installed between top working roll bearing block and the bottom working roll bearing block.Its structure is that combined type roller hydraulic cylinder has four, is installed in respectively in the center hole of the fixed block between top working roll bearing block and the bottom working roll bearing block, can slide up and down along the fixed block endoporus when flexible.Fixed block puts together on the window middle part of memorial archway.Gripper shoe is equipped with by the memorial archway side in the top of fixed block of the present invention.Between fixed block and the lower platen feather key is set.
Top board is housed respectively the upper and lower end of the cylinder body of combined type roller hydraulic cylinder of the present invention and lower platen is formed oil cylinder, piston rod is equipped with in the inside, the Lower Half of piston rod is a cover tubular, the part of connecting rod is embedded in the inside, lower platen is withstood in the lower end of connecting rod, ball ring is equipped with in contact position between connecting rod upper/lower terminal and piston rod and the lower platen, and the upper side edge of top board is equipped with the oil-feed plate.During combined type roller hydraulic cylinder works, top board withstands the top working roll bearing block, and lower platen withstands the bottom working roll bearing block under the effect of piston rod, connecting rod.
During pair rolling, because the effect of roll-force, the working roll intermediate deformation is bigger, causes the band steel thick middle that shuts out, and both sides are thin, as shown in Figure 3.Adopt roll-bending device now, make working roll crooked in the other direction in advance, as shown in Figure 4.Treat that working roll keeps straight under the synergy of bending roller force and roll-force when rolling, be pressed against on the backing roll, make the belt steel thickness that shuts out even.
The strip mill of employing combined type roller hydraulic cylinder of the present invention, every rolling mill are only established 4 combined type roller hydraulic cylinders, and combined type roller hydraulic cylinder is contained in the middle fixed block center hole of mill housing window, and it is flexible to fluctuate.Combined type roller hydraulic cylinder extends simultaneously and compresses upper and lower working roll bearing block during steel rolling, impels working roll slight curving.Combined type roller hydraulic cylinder is withdrawn simultaneously during roll change, and hangs on the fixed block by the effect of gripper shoe.
The strip mill of employing combined type roller hydraulic cylinder of the present invention and the comparison of traditional milling train:
When 1, a rolling mill adopts the combined type roll-bending device, only need 4 roller hydraulic cylinders, and need 16 hydraulic cylinders when adopting traditional roll-bending device;
2, combined type roller hydraulic cylinder acts on upper and lower working roll bearing block simultaneously, the bending roller force equal and opposite in direction, direction is opposite, mill housing is not produced additional forces, and traditional roller hydraulic cylinder is because of upper and lower independent effect, and the difference of its bending roller force produces additional force to memorial archway;
When 3, working roll moved axially, combined type roller hydraulic cylinder was motionless, and traditional roller hydraulic cylinder needs servo-actuated, and slideway need be set, and influences the memorial archway rigidity.
The strip mill of employing combined type roller hydraulic cylinder of the present invention has following feature:
1, four roller hydraulic cylinders are only established in the roll-bending device setting of whole rolling mill.
2, only adopt a combined type roller hydraulic cylinder between the upper and lower working roll bearing block of every side.
3, complete combined type roller hydraulic cylinder can freely stretch in the fixed block center hole.
4, adopt ball ring between piston rod, connecting rod and the lower platen, can automatic aligning.
5, between combined type roller hydraulic cylinder and the fixed block feather key is set, prevents that combined type roller hydraulic cylinder from rotating.
The advantage and the effect of the strip mill of employing combined type roller hydraulic cylinder of the present invention:
1, hydraulic cylinder quantity is few, and pipeline quantity is few, is difficult for taking place seepage, and it is stable that bending roller force is easy to keep.
2, simple and compact for structure, do not influence memorial archway rigidity.
3, maintenance capacity is little, and roll change is convenient.
4, bending roller force equal and opposite in direction up and down, direction is opposite, memorial archway is not produced additional force.
The present invention has novel structure, simple and compact for structure, advantage such as maintenance capacity is little, roll change is convenient, and it puts goods on the market in enormous quantities and will produce positive social benefit and remarkable economic efficiency.
Description of drawings
The present invention has eight accompanying drawings, wherein
Accompanying drawing: the strip mill structural representation front view that 1, adopts combined type roller hydraulic cylinder
Accompanying drawing: the strip mill vertical view that 2, adopts combined type roller hydraulic cylinder
Accompanying drawing: working roll view when 3, not establishing roll-bending device steel rolling
Accompanying drawing: the strip mill work roll bending view that 4, adopts combined type roller hydraulic cylinder
Accompanying drawing: 5, traditional rolling mill structure sketch front view
Accompanying drawing: 6, traditional rolling mill structure sketch vertical view
Accompanying drawing: the strip mill structure diagram front view that 7, adopts combined type roller hydraulic cylinder
Accompanying drawing: the strip mill structure diagram vertical view that 8, adopts combined type roller hydraulic cylinder
Among the figure: 1, oil-feed plate 2, top board 3, support plate 4, fixed block 5, cylinder body 6, piston rod 7, lower platen 8, connecting rod 9, feather key 10, ball ring memorial archway 11, memorial archway 12, top working roll bearing block 13, bottom working roll bearing block 14, top working roll 15, bottom working roll 16, upper support roller 17, lower support roller 18, roller hydraulic cylinder 19, former hydraulic cylinder
The specific embodiment
Specific embodiments of the invention as shown in drawings, adopt the strip mill of combined type roller hydraulic cylinder only to use four combined type roller hydraulic cylinders 18, be installed in respectively in the center hole of the fixed block 4 between the upper and lower working roll bearing block 12,13 at entrance and exit place of fore side and transmission side, and it is flexible to fluctuate, four combined type roller hydraulic cylinder structures are identical, see accompanying drawing 2, accompanying drawing 8.Each combined type roller hydraulic cylinder mainly partly is made up of oil-feed plate 1, top board 2, support plate 3, fixed block 4, cylinder body 5, piston rod 6, lower platen 7, connecting rod 8, feather key 9, ball ring 10 etc., sees accompanying drawing 1, accompanying drawing 7.
The bed rearrangement milling train is the middle part that top working roll 14 and bottom working roll 15 is installed in memorial archway 11 by top working roll bearing block 12 and bottom working roll bearing block 13.Upper support roller 16 and lower support roller 17 are installed in the both sides up and down of top working roll 14 and bottom working roll 15.Combined type roller hydraulic cylinder 18 then is contained in the center hole of the fixed block 4 between top working roll bearing block 12 and the bottom working roll bearing block 13.Cylinder body 5 upper/lower terminals of combined type roller hydraulic cylinder 18 are equipped with the oil cylinder of top board 2 and lower platen 7 compositions respectively, piston rod 6 is equipped with in the inside, the Lower Half of piston rod 6 is cover tubulars, and the part of connecting rod 8 is embedded in the inside, and lower platen 7 is withstood in the lower end of connecting rod 8.Combined type roller hydraulic cylinder 18 is contained in the center hole of fixed block 4, can slide up and down along the fixed block endoporus when flexible.Fixed block 4 puts together on the window middle part of memorial archway 11.Wherein the contact position between connecting rod 8 and piston rod 6 and the lower platen 7 adopts ball ring 10 to carry out automatic aligning, between fixed block 4 and lower platen 7 feather key 9 is set simultaneously, prevents the hydraulic cylinder rotation.
The upper side edge of the top board 2 on combined type roller hydraulic cylinder 18 tops is equipped with oil-feed plate 1.Oil-feed plate 1 when the fuel feeding of hydraulic cylinder piston chamber, the hydraulic cylinder two-way extension, top board 2 compresses top working roll bearing block 12, lower platen 7 compresses bottom working roll bearing block 13 simultaneously under the effect of piston rod 6, connecting rod 8, produce bending roller force, make the upper working rolls and lower working rolls distortion, as shown in Figure 4.This acts on the bending roller force equal and opposite in direction of upper and lower working roll bearing block simultaneously, and direction is opposite, can not produce additional force to memorial archway.Gripper shoe 3 is equipped with by memorial archway 11 sides in the top of fixed block 4.Rod end chamber fuel feeding during roll change, hydraulic cylinder shrink, and oil-feed plate by putting together on top board 21 is discharged hydraulic oil, and hydraulic cylinder tangles by the support plate 3 that puts together on fixed block 4, as shown in Figure 1.
Claims (3)
1, a kind of strip mill that adopts combined type roller hydraulic cylinder, its top working roll (14) and bottom working roll (15) are installed in the middle part of memorial archway (11) by top working roll bearing block (12) and bottom working roll bearing block (13); Upper support roller (16) and lower support roller (17) are installed in the both sides up and down of top working roll (14) and bottom working roll (15); The hydraulic cylinder that roller is used then is installed between top working roll bearing block (12) and the bottom working roll bearing block (13); It is characterized in that combined type roller hydraulic cylinder (18) has four, be installed in respectively in the center hole of the fixed block (4) between top working roll bearing block (12) and the bottom working roll bearing block (13), can slide up and down along the endoporus of fixed block (4) when flexible; Fixed block (4) puts together on the window middle part of memorial archway (11); Top board (2) is housed respectively the upper and lower end of the cylinder body (5) of combined type roller hydraulic cylinder (18) and lower platen (7) is formed oil cylinder, piston rod (6) is equipped with in the inside, the Lower Half of piston rod (6) is a cover tubular, the part of connecting rod (8) is embedded in the inside, lower platen (7) is withstood in the lower end of connecting rod (8), ball ring (10) is equipped with in contact position between connecting rod (8) upper/lower terminal and piston rod (6) and the lower platen (7), and the upper side edge of top board (2) is equipped with oil-feed plate (1); During combined type roller hydraulic cylinder (18) work, top board (2) withstands top working roll bearing block (12), and lower platen (7) withstands bottom working roll bearing block (13) under the effect of piston rod (6), connecting rod (8).
2, the strip mill of employing combined type roller hydraulic cylinder according to claim 1 is characterized in that gripper shoe (3) is equipped with by memorial archway (11) side in the top of fixed block (4).
3, the strip mill of employing combined type roller hydraulic cylinder according to claim 1 is characterized in that between fixed block (4) and the lower platen (7) feather key (9) being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100122846A CN100467152C (en) | 2007-07-26 | 2007-07-26 | Strip mill of using combined type hydraulic cylinder of bending roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100122846A CN100467152C (en) | 2007-07-26 | 2007-07-26 | Strip mill of using combined type hydraulic cylinder of bending roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101091963A CN101091963A (en) | 2007-12-26 |
| CN100467152C true CN100467152C (en) | 2009-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100122846A Active CN100467152C (en) | 2007-07-26 | 2007-07-26 | Strip mill of using combined type hydraulic cylinder of bending roller |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954381B (en) * | 2010-09-15 | 2012-07-25 | 中冶京诚工程技术有限公司 | Working roll bending device of plate band rolling mill |
| CN101966532A (en) * | 2010-11-03 | 2011-02-09 | 大连华锐股份有限公司 | Composite positive and negative roller bending device based on six-high mill |
| CN103063450A (en) * | 2012-12-25 | 2013-04-24 | 青岛四方车辆研究所有限公司 | Buffer static pressure test stand |
| CN103157666B (en) * | 2013-04-11 | 2015-05-20 | 中冶赛迪工程技术股份有限公司 | Plate strip rolling mill roller adjusting device |
| CN106694551B (en) * | 2016-12-05 | 2018-04-27 | 一重集团大连设计研究院有限公司 | Section-variable rolling machine undisturbed roller structure |
| CN109441909A (en) * | 2018-12-27 | 2019-03-08 | 中冶南方工程技术有限公司 | Double diameter hydraulic cylinders and strip calendering device |
| JP6979437B2 (en) * | 2019-10-25 | 2021-12-15 | Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 | Rolling machine and rolling method |
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| CN101091963A (en) | 2007-12-26 |
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Assignee: Dalian Huarui Heavy Industry Special Spare Parts Manufacturing Co., Ltd. Assignor: Huarui Co., Ltd., Dalian Contract record no.: 2010210000088 Denomination of invention: Strip mill of using combined type hydraulic cylinder of bending roller Granted publication date: 20090311 License type: Exclusive License Open date: 20071226 Record date: 20100618 |
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Owner name: DALIAN HUARUI HEAVY INDUSTRIAL SPECIAL SPARE PARTS Free format text: FORMER OWNER: HUARUI CO., LTD., DALIAN Effective date: 20100729 |
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Free format text: CORRECT: ADDRESS; FROM: 116013 NO.169, BAYI ROAD, XIGANG DISTRICT, DALIAN CITY, LIAONING PROVINCE TO: 116052 NO.29, SHUNDA ROAD, LVSHUN ECONOMIC DEVELOPMENT ZONE, DALIAN CITY, LIAONING PROVINCE |
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Effective date of registration: 20100729 Address after: 116052 No. 29 Shunda Road, Lushun Economic Development Zone, Liaoning, Dalian Patentee after: Dalian Huarui Heavy Industry Special Spare Parts Manufacturing Co., Ltd. Address before: 116013 Bayi Road, Xigang District, Liaoning, China, No. 169, No. Patentee before: Huarui Co., Ltd., Dalian |