CN204817455U - Finishing mill unit - Google Patents
Finishing mill unit Download PDFInfo
- Publication number
- CN204817455U CN204817455U CN201520313262.3U CN201520313262U CN204817455U CN 204817455 U CN204817455 U CN 204817455U CN 201520313262 U CN201520313262 U CN 201520313262U CN 204817455 U CN204817455 U CN 204817455U
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- China
- Prior art keywords
- roll
- finishing mill
- working roll
- mill unit
- milling train
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Abstract
The utility model provides a finishing mill unit comprises five rolling mills, single rolling mill is by last screwdown gear and the frame of being in proper order under to, the screwdown gear is by lower outer backing roll, the speed reducer, and pneumatic cylinder 2, motor 2, 2 components of speed reducer, establishing the roll device in the frame, being pneumatic cylinder 1 from top to bottom in proper order, outer backing roll is gone up to the rack, upward middle roller, and burden roller piece, upper work roll, the roll change bracket, positive roller piece, the bottom working roll, down middle roller, the rolling mill respectively by the bolt fastening on a base, can realize not cutting the belted steel roll change during working roll roll change, 5 exports in 1 entry in the rolling mill and export, the rolling mill are equipped with the calibrator, and the calibrator is given the signal feedback 1 number and no. 5 rolling mill hydraulic pressure are pushed down the hydro -cylinder and are carried out thickness closed -loop control, be equipped with the tensimeter at rolling mill 2, before 3, 4, 5, with the tension control system formation closed loop. The device simple structure, it is wide to use the face, is suitable for the popularization.
Description
Technical field
The utility model relates to a kind of corollary equipment of deep ocean work band steel hot continuous rolling technology production field, and more particularly, the utility model relates to a kind of finishing mill unit.
Technical background
Usually, in order to improve utilization ratio and the production efficiency of equipment, each metalloid material of mixed production has become a kind of development trend that hot continuous rolling is produced, that is, article one, hot continuous rolling production line is both for the production of common iron kind, also for the production of stainless steel or some special non-ferrous metal.But, when utilizing the band steel of traditional mm finishing mill unit rolling special kinds (such as: deep ocean work band steel), being nipped by the top working roll rotated and bottom working roll along rolling direction with steel, there will be strip steel head " nose " situation when passing frame.Particularly, when rolling non-ferrous metal A, band steel head when passing frame occurs that the main conditions of " nose " are:
(1) thickness range of the product of hot continuous rolling production line rolling is general very wide, is generally 1.20mm-12.7mm (six frame mm finishing mill unit), 1.20mm-25.4mm (seven frame mm finishing mill unit).In rolling crossing process, all there is nose in various degree in the finishing stand passed in mm finishing mill unit with steel, and exist by the cumulative trend of frame nose degree, when nose degree exceed to a certain degree and directly cause entering downstream frame time, threading failure will be there is, roll the situations such as useless, even if threading success reluctantly, also there will be the phenomenon that head folds, rolls brokenly, seriously affects the quality of product and the safety of equipment.
(2) though because the upper and lower roll system of each frame of hot-tandem unit is respectively as a separate machine dynamical system, be all same motor by gear-box central driving, the angular speed of upper and lower working roll is equal.Normal, when top working roll is different with the diameter of bottom working roll, in rolling ordinary steel product process, band steel there will be to the little curving of diameter or there is warp tendency.But, when this non-ferrous metal of rolling A, but there is contrary situation, and occur the top roll of working roll be press-fitted put larger, the more serious trend of band steel " nose " degree.
(3) under the prerequisite of precision ensureing relevant device, phenomenon in above-mentioned (2) and the interaction of rolling kind and roll shop building, material characteristic, operational characteristic etc. have close relationship, when adopting the mm finishing mill unit of the roll-in of rolling common variety configuration to carry out rolling non-ferrous metal A, the special substance of non-ferrous metal A obviously can affect the change of the roll surface roughness of roll, and (diameter of working roll is larger, described change is more obvious), final generation a kind of " adhesion ", and show with the form of serious " nose ".
In sum, due to the band steel of different cultivars material characteristic, operational characteristic and differ greatly with the interaction of roll shop building, so traditional mm finishing mill unit can not meet or adapt to rolling deep ocean work flat product, especially in some non-ferrous metal of rolling or stainless process, there is serious " nose " problem, band steel is caused can not normally to enter downstream frame, directly can cause threading failure, roll the problems such as useless, even relevant device is caused damage, also can reduce operating efficiency simultaneously, affect whole production line and cause great economic loss.
Utility model content
For solving the problems referred to above that prior art exists, the utility model aims to provide a kind of finishing mill unit, and this apparatus structure is simple, wide application, is suitable for promoting.
For solving the problems of the technologies described above, the utility model have employed following technical scheme: a kind of finishing mill unit is made up of five rolling mills, described single milling train is followed successively by screwdown gear and frame from top to bottom, described screwdown gear is by lower outside backing roll, reductor, hydraulic cylinder 2, motor 2, reductor 2 forms, roll device is established in described frame, be followed successively by hydraulic cylinder 1 from top to bottom, tooth bar, upper outside backing roll, upper intermediate calender rolls, negative roller bending block, top working roll, roll change bracket, positive roller bending block, bottom working roll, lower intermediate calender rolls, described milling train is bolted respectively on a base, can realize during work roll changing not cutting off the roll change of band steel, described milling train 1 entrance and exit, milling train 5 outlet is provided with calibrator, signal feedback is carried out closed loop thickness control to No. 1 and No. 5 rolling mill hydraulic depress oil cylinders by calibrator, before milling train 2,3,4,5, be provided with tensometer, form closed loop with tension control system.
Described single milling train respectively by two motors through reductor, realize upper and lower intermediate roller driven.
Described rolling mill screw down is made upper outside backing roll rotate by hydraulic cylinder 1 with carry-over bar, gear thus realizes the pressure of upper intermediate calender rolls and top working roll.
The Height Adjustment of described bottom working roll by hydraulic motor driven gear, lower outside backing roll is rotated, thus the lower intermediate calender rolls of adjustment and bottom working roll roll surface absolute altitude.
The axial float of described working roll is realized by the hydraulic cylinder being contained in mill drive side.
Described five rolling mills are all equipped with the positive roller of working roll, working roll is born roller, working roll roll shifting etc. and controlled plate shape.
Described upper intermediate calender rolls and the minimum roll gap of topping roll are 2mm, and between described top and bottom rolls, minimum roll gap is 7mm, and described lower intermediate calender rolls and the minimum roll gap of bottom roll are 3mm.
The utility model beneficial effect
1, after adopting hot-tandem unit described in the utility model, significantly " nose " phenomenon is there will not be in the process of rolling deep ocean work band steel, thus efficiently solve " nose " problem of the special kinds rolled pieces such as rolling non-ferrous metal and stainless steel, make the band steel of special kinds be rolled into power and lumber recovery is improved.
2, on-stream, drive disk assembly rotates flexible, steady, and the sound without exception and jam phenomenon, bearing temperature should be normal, and rolling bearing temperature rise is less than 40 DEG C, and maximum temperature is less than 80 DEG C.Sliding bearing temperature rise is less than 35 DEG C, and maximum temperature is less than 70 DEG C, and each securing member, connector are fastening, do not loosen.
3, this apparatus structure is simple, wide application, is suitable for promoting.
Accompanying drawing explanation
Fig. 1 the utility model structure chart
Fig. 2 the utility model structure chart
Wherein 1-screwdown gear, 2-frame, the upper outside backing roll of 3-, the upper intermediate calender rolls of 4-, 5-bears roller bending block, 6-top working roll, 7-roll change bracket, the positive roller bending block of 8-, 9-bottom working roll, intermediate calender rolls under 10-, the lower outside backing roll of 11-, 12-reductor 1, 13-motor 2, 14-reductor 2, 15-hydraulic cylinder 1, 16-tooth bar, 17-hydraulic cylinder 2, 18-motor 1, 19-calibrator 1, 20-calibrator 2, 21-tensometer 1, 22-tensometer 2, 23-tensometer 3, 24-tensometer 4, 25-calibrator 3, 26-milling train 5, 27-milling train 4, 28-milling train 3, 29-milling train 2, 30-milling train 1, 31-base, 32-topping roll, 33-bottom roll.
Detailed description of the invention
A kind of finishing mill unit is by five rolling mills 30, 29, 28, 27, 26 compositions, described single milling train is followed successively by screwdown gear 1 and frame 2 from top to bottom, described screwdown gear 1 is by lower outside backing roll 11, reductor 112, hydraulic cylinder 217, motor 213, reductor 214 forms, roll device is established in described frame 2, be followed successively by hydraulic cylinder 115 from top to bottom, tooth bar 16, upper outside backing roll 3, upper intermediate calender rolls 4, negative roller bending block 5, top working roll 6, roll change bracket 7, positive roller bending block 8, bottom working roll 9, lower intermediate calender rolls 10, described milling train is bolted respectively on same base 31, can realize during work roll changing not cutting off the roll change of band steel, described milling train 1 entrance and exit, milling train 5 outlet is provided with calibrator 19, 20, 25, signal feedback is carried out closed loop thickness control to No. 1 and No. 5 rolling mill hydraulic depress oil cylinders by calibrator, before milling train 2,3,4,5, be provided with tensometer 21,22,23,24, form closed loop with tension control system.
Described single milling train respectively by two motors 13,18 through reductor 12,14, realize the transmission of upper and lower intermediate calender rolls 4,10.
Described rolling mill screw down 1 is with carry-over bar 16 by hydraulic cylinder 115, and gear makes upper outside backing roll 3 rotate thus realize the pressure of intermediate calender rolls 4 and top working roll 6.
The Height Adjustment of described bottom working roll by hydraulic motor driven gear, lower outside backing roll 11 is rotated, thus the lower intermediate calender rolls 10 of adjustment and bottom working roll 9 roll surface absolute altitude.
The axial float of described working roll is realized by the hydraulic cylinder 17 being contained in mill drive side.
Described five rolling mills are all equipped with the positive roller 8 of working roll, roller 5 born by working roll, working roll 6,9 roll shifting etc. controls plate shape.
Described upper intermediate calender rolls 4 is 2mm with the minimum roll gap of topping roll 32, and described lower intermediate calender rolls 10 is 3mm with the minimum roll gap of bottom roll 33.
Described tooth bar 16 liang of side clearances are equal, and one-sided running clearance is 0.2mm.
Claims (8)
1. a finishing mill unit, be made up of five rolling mills, described single milling train is followed successively by screwdown gear and frame from top to bottom, it is characterized in that, described screwdown gear is by lower outside backing roll, reductor, hydraulic cylinder 2, motor 2, reductor 2 forms, roll device is established in described frame, be followed successively by hydraulic cylinder 1 from top to bottom, tooth bar, upper outside backing roll, upper intermediate calender rolls, negative roller bending block, top working roll, roll change bracket, positive roller bending block, bottom working roll, lower intermediate calender rolls, described milling train is bolted respectively on a base, can realize during work roll changing not cutting off the roll change of band steel, described milling train 1 entrance and exit, milling train 5 outlet is provided with calibrator, signal feedback is carried out closed loop thickness control to No. 1 and No. 5 rolling mill hydraulic depress oil cylinders by calibrator, before milling train 2,3,4,5, be provided with tensometer, form closed loop with tension control system.
2. a kind of finishing mill unit according to claim 1, is characterized in that, described single milling train respectively by two motors through reductor, realize upper and lower intermediate roller driven.
3. a kind of finishing mill unit according to claim 1, is characterized in that, described rolling mill screw down is made upper outside backing roll rotate by hydraulic cylinder 1 with carry-over bar, gear thus realizes the pressure of upper intermediate calender rolls and top working roll.
4. a kind of finishing mill unit according to claim 1, it is characterized in that, the Height Adjustment of described bottom working roll by hydraulic motor driven gear, lower outside backing roll is rotated, thus the lower intermediate calender rolls of adjustment and bottom working roll roll surface absolute altitude.
5. a kind of finishing mill unit according to claim 1, is characterized in that, the axial float of described working roll is realized by the hydraulic cylinder being contained in mill drive side.
6. a kind of finishing mill unit according to claim 1, it is characterized in that, described five rolling mills are all equipped with the positive roller of working roll, roller born by working roll, working roll roll shifting controls plate shape.
7. a kind of finishing mill unit according to claim 1, it is characterized in that, described upper intermediate calender rolls and the minimum roll gap of topping roll are 2mm, and described lower intermediate calender rolls and the minimum roll gap of bottom roll are 3mm.
8. a kind of finishing mill unit according to claim 1, it is characterized in that, described tooth bar two side clearance is equal, and one-sided running clearance is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313262.3U CN204817455U (en) | 2015-05-15 | 2015-05-15 | Finishing mill unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313262.3U CN204817455U (en) | 2015-05-15 | 2015-05-15 | Finishing mill unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204817455U true CN204817455U (en) | 2015-12-02 |
Family
ID=54675097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520313262.3U Expired - Fee Related CN204817455U (en) | 2015-05-15 | 2015-05-15 | Finishing mill unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204817455U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424135A (en) * | 2016-09-01 | 2017-02-22 | 中北大学 | Variable cross-section thickness thin plate hot roll forming device for vertical hydraulic machine |
| CN106552862A (en) * | 2016-09-01 | 2017-04-05 | 中北大学 | The variable cross-section thickness thin plate hot rolling manufacturing process of vertical hydraulic press |
| CN108971231A (en) * | 2018-09-21 | 2018-12-11 | 中冶赛迪技术研究中心有限公司 | A kind of milling train high rigidity fast replacing device |
-
2015
- 2015-05-15 CN CN201520313262.3U patent/CN204817455U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424135A (en) * | 2016-09-01 | 2017-02-22 | 中北大学 | Variable cross-section thickness thin plate hot roll forming device for vertical hydraulic machine |
| CN106552862A (en) * | 2016-09-01 | 2017-04-05 | 中北大学 | The variable cross-section thickness thin plate hot rolling manufacturing process of vertical hydraulic press |
| CN106552862B (en) * | 2016-09-01 | 2018-02-02 | 中北大学 | The variable cross-section thickness thin plate hot rolling manufacturing process of vertical hydraulic press |
| CN108971231A (en) * | 2018-09-21 | 2018-12-11 | 中冶赛迪技术研究中心有限公司 | A kind of milling train high rigidity fast replacing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180515 |