CN2698479Y - Working roll bidirectional movement type four rolls cold rolling machine - Google Patents
Working roll bidirectional movement type four rolls cold rolling machine Download PDFInfo
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- CN2698479Y CN2698479Y CN 200320116451 CN200320116451U CN2698479Y CN 2698479 Y CN2698479 Y CN 2698479Y CN 200320116451 CN200320116451 CN 200320116451 CN 200320116451 U CN200320116451 U CN 200320116451U CN 2698479 Y CN2698479 Y CN 2698479Y
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- roller
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Abstract
The utility model discloses a working roll axial bidirectional movement type four rolls cold rolling machine which is composed of a machine frame, a working roll and a supporting roll and a working roll traversing mechanism. The working roll traversing mechanism of the utility model is a hydraulic working roll traversing mechanism. The axial positions of an upper working roll and a lower working roll can carry out bidirectional dynamic pre-adjustment according to the width of rolled strip material. A displacement sensor is provided in the hydraulic cylinder of the working roll traversing mechanism, making the traversing position accuracy of the working roll attain (+/-) 0. 50 mm and the synchronizing accuracy of the working roll attain (+/-) 0. 20 mm. A ' E ' shape block is adopted to provide a sliding way for a traversing block. An independent positive hydraulic pressure curve roll cylinder and an independent negative hydraulic pressure curve roll cylinder are equipped, realizing the smooth transition of the non-dead area of positive curve roll force and negative curve roll force. The strip steel produced by adopting the utility model has the advantages of small strip material edge falling, high finishing ratio, large plate shape controlling ability, prolonged roll using cycle period, etc. The lengthways thickness tolerance of the product attains (+/-) 0. 005 mm, the transverse thickness tolerance of the product attains 0. 001 mm, and the plate shape of the product <= 8 I. The utility model can replace imported equipments and quicken the reconstruction course of domestic old rolling machines.
Description
Technical field the utility model relates to a kind of 4-roller cold rolling mill, particularly working roll can axially two-way mobile 4-roller cold rolling mill.
Background technology up to the present, the homemade 4-roller cold rolling mill that each big steel company of China uses substantially all is medium-sized, promptly working roll can not move axially.The first phase in 1992 " heavy-duty machinery " magazine has carried out detailed argumentation to this.Although this cold-rolling mill is relatively simple for structure, there is fatal weakness.Exceed the wide zone of band plate between normal four-roller cold rolling mill work roller and the backing roll and exist harmful contact zone, contact stress is too high between this contact area roller, the working roll end wear is serious, the work roll bending effect is subjected to great constraint, and will cause the overbending of working roll, rolling with this understanding band strip crown is big, plate shape is poor, and lateral thickness difference can only reach 0.12mm.Heavy group company was on the basis of experimental mill in 1992 one, manufactured and designed the cold rolling unit of 1200mm of a cover band roll shifting mechanism for Nanjing Steel Rolling Mill, its roll shifting mechanism is located at fore side, simpler and easy, lateral thickness difference can only reach 0.08mm, still can not satisfy the requirement that cold-strip lateral thickness difference precision will reach 0.01mm.
The summary of the invention the purpose of this utility model is exactly to manufacture and design a kind of two-way portable 4-roller cold rolling mill of working roll that can production high accuracy cold-strip, to improve band plate shape precision and lumber recovery, to reduce production costs.
In order to eliminate working roll that the normal four-roller cold-rolling mill exists and the harmful contact area between the backing roll, the utility model has increased fluid pressure type work roll shifting mechanism, the axial location of upper working rolls and lower working rolls can carry out two-way dynamic pre-adjustment according to the width of institute's strip.In order to improve the precision of work roll shifting, the utility model is provided with displacement transducer in the hydraulic cylinder of work roll shifting mechanism, and the positional precision that makes work roll shifting reaches ± 0.20mm up to ± 0.50mm, synchronization accuracy.In order to realize the no dead band smooth transition of positive and negative bending roller force, i.e. the variation of positive and negative bending roller force is continuous, and the utility model adopts " E " shape piece to provide slideway for traversing, and is equipped with independently positive and negative hydraulic bending roll cylinder.In order to make final drive shaft satisfy the axial traversing requirement of working roll when transmitting moment of torsion, final drive shaft of the present utility model is designed to telescopic arc toe joint axle.
In order to make the 4-roller cold rolling mill structure more compact, the utility model is arranged on work roll shifting mechanism the transmission side of milling train, organically combine together with final drive shaft, final drive shaft carriage and working roll locking device etc., reduced taking up room, made the milling train fore side is attractive in appearance succinctly, help milling train maintenance and roller replacing operation.
Owing to adopted above-mentioned measure, the band steel of the utility model production have the band limit fall little, lumber recovery is high, plate shape control ability is big and prolong advantage such as roll life cycle, can satisfy the rolling requirement of high accuracy cold-strip, its product longitudinal thickness tolerance up to ± 0.005mm, transverse gage tolerance up to 0.01mm, plate shape≤8I.Can substitute import equipment, accelerate the transformation process of homemade old milling train.
Description of drawings
Fig. 1 is a principal section view of the present utility model.
Fig. 2 is the cross section view of bowing of the present utility model.
Fig. 3 moves design sketch for working roll of the present utility model.
The specific embodiment is described further the utility model below in conjunction with accompanying drawing.As shown in Figure 1, frame of the present utility model is made up of fore side and two memorial archways 8 of transmission side, memorial archway 8 is installed on the ground by foundation bolt, top backing up roll 1, the two ends of lower support roller 7 are installed in upside and downside in memorial archway 8 windows by compensating cylinder and axle head locking device respectively, top working roll 2, the two ends of bottom working roll 6 are installed in centre position in memorial archway 8 windows by compensating cylinder and axial moving mechanism respectively, top backing up roll 1, top working roll 2, bottom working roll 6 and lower support roller 7 from top to bottom join by roll surface successively, the axial line of top backing up roll 1 and lower support roller 7, the axial line of top working roll 2 and bottom working roll 6 is respectively in vertical plane separately, medianly zygomorphic E type piece 4 is installed in the left and right sides in memorial archway 8 windows by bolt, two last traversing 3 and two down are symmetrical structure up and down for traversing 5, be installed in the E type piece 4 of the left and right sides by T-slot respectively, positive roller cylinder 9 and negative roller cylinder 10 are installed in each cylinder barrel of traversing by cylinder cap respectively.
Figure 2 shows that the axially movable transverse-moving mechanism schematic diagram of the utility model control working roll, top working roll 2 and bottom working roll 6 axially movable transverse-moving mechanisms be about symmetrical mechanism, be positioned at the transmission side of milling train.Working roll bearing block 16 is installed in the window of transmission side memorial archway 8 by compensating cylinder and axial moving mechanism, its driving end links to each other with final drive shaft 18 by the roll homalocephalus, the other end links to each other with top working roll 2 by four row conical bearings and semi-ring, traversing hook 15 is installed in last traversing 3 by bearing pin, its front end is hinged by bearing pin and dislodging hook hydraulic cylinder 14, the bump position of working roll bearing block 16 is hooked in the rear end by hook, dislodging hook hydraulic cylinder 14 is installed in last traversing 3 outside by bolt, carriage hydraulic cylinder 13 is installed on the support 12 by bolt, support 12 is installed in the transmission side of memorial archway 8 by bolt, connecing shaft tray 17 is installed in last traversing 3 by bearing pin, four traversing hydraulic cylinder 11 inside are equipped with displacement transducer and are installed on the support 12 by bolt, its piston rod by bearing pin and last traversing 3 hinged.Final drive shaft 18 of the present utility model is telescopic arc toe joint axle, simultaneously Motor torque is passed to working roll in that roll is axially movable, is power resources of the present utility model.
During the utility model work, main motor drives top working roll 2 by final drive shaft 18 and bottom working roll 6 rotates.The utility model can be set the axial location of working roll according to the width of roll band steel, thereby eliminates harmful contact area of roll shop building, strengthens the roller effect of working roll.Under band plate shape condition of poor, according to technological requirement, two of four traversing cylinder 11 push-and-pulls last traversing 3 and two traversing 5 and working roll bearing blocks 16 down, thus drive top working roll 2 and bottom working roll 6 carries out axially oppositely moving.Equivalent oppositely the moving with roller of upper working rolls and lower working rolls is used, and greatly improved the quality and the roll wear situation of band steel.
When top working roll of the present utility model 2 was traversing, last traversing 3 was connected as a single entity by traversing hook 15 and working roll bearing block 16 and top working roll 2, guaranteed that the two nothing relatively moves when traversing, and in like manner, bottom working roll 6 and also not having between traversing 5 down relatively moves.
Final drive shaft 18 built-in springs of the present utility model keep the same moved further with top working roll 2 and bottom working roll 6 under the effect of spring force.
The utility model when changing working roll, the decoupling device under the driving of dislodging hook hydraulic cylinder 14 of traversing hook 15, working roll bearing block 16 separates with last traversing 3 and time traversing 5, working roll can be pulled out from memorial archway 8.Connect shaft tray 17 before the withdrawing roll and under carriage hydraulic cylinder 13 drives, hold final drive shaft 18, be located.
Fig. 3 is an operation principle schematic diagram of the present utility model, P represents to act on the draught pressure on top backing up roll 1 and the lower support roller 7, F represents to act on the bending roller force on top working roll 2 and the bottom working roll 6, S represents the moving direction of top working roll 2 and bottom working roll 6, σ represents the roll shop building contact stress, L represents the roll contact length, as can be seen from the figure in roll contact length L scope, contact stress between roller has obtained redistribution and smooth-out, heavily stressed harmful contact zone disappears, basic goal that the utility model will reach that Here it is.
Claims (5)
1, a kind of mainly by frame, working roll, the two-way portable 4-roller cold rolling mill of working roll that backing roll and work roll shifting mechanism form, its frame is made up of fore side and two memorial archways of transmission side (8), memorial archway (8) is installed on the ground by foundation bolt, top backing up roll (1), the two ends of lower support roller (7) are installed in memorial archway (8) window interior upside and downside by compensating cylinder and axle head locking device respectively, top working roll (2), the two ends of bottom working roll (6) are installed in the interior centre position of memorial archway (8) window by compensating cylinder and axial moving mechanism respectively, top backing up roll (1), top working roll (2), bottom working roll (6) and lower support roller (7) from top to bottom join by roll surface successively, the axial line of top backing up roll (1) and lower support roller (7), the axial line of top working roll (2) and bottom working roll (6) is respectively in vertical plane separately, it is characterized in that: the left and right sides in memorial archway (8) window is equipped with the E type piece (4) of symmetry by bolt, in the E of left and right sides type piece (4), by T-slot two last traversing (3) and two following traversing (5) are installed respectively, and two last traversing (3) and two traversing (5) down are symmetrical structure up and down, in each cylinder barrel of traversing, by cylinder cap positive roller cylinder (9) and negative roller cylinder (10) are installed respectively, described top working roll (2) and the axially movable transverse-moving mechanism of bottom working roll (6) are symmetrical mechanism up and down, be positioned at the transmission side of milling train, working roll bearing block (16) is installed in the window of transmission side memorial archway (8) by compensating cylinder and axial moving mechanism, its driving end links to each other with final drive shaft (18) by the roll homalocephalus, the other end links to each other with top working roll (2) by four row conical bearings and semi-ring, traversing hook (15) is installed in last traversing (3) by bearing pin, its front end is hinged by bearing pin and dislodging hook hydraulic cylinder (14), the bump position of working roll bearing block (16) is hooked in the rear end by hook, dislodging hook hydraulic cylinder (14) is installed in the outside of last traversing (3) by bolt, carriage hydraulic cylinder (13) is installed on the support (12) by bolt, support (12) is installed in the transmission side of memorial archway (8) by bolt, connecing shaft tray (17) is installed in last traversing (3) by bearing pin, four traversing hydraulic cylinders (11) are installed on the support (12) by bolt, and its piston rod is hinged by bearing pin and last traversing (3).
2, the two-way portable 4-roller cold rolling mill of working roll according to claim 1 is characterized in that: described final drive shaft (18) is telescopic arc toe joint axle.
3, the two-way portable 4-roller cold rolling mill of working roll according to claim 1, it is characterized in that: described traversing (3) are connected as a single entity by traversing hook (15) and working roll bearing block (16) and top working roll (2), and following traversing (5) traversing hook and working roll bearing block and bottom working roll (6) by correspondence is connected as a single entity.
4, the two-way portable 4-roller cold rolling mill of working roll according to claim 1 is characterized in that: the built-in spring of described final drive shaft (18).
5, the two-way portable 4-roller cold rolling mill of working roll according to claim 1, it is characterized in that: the inside of described four traversing hydraulic cylinders (11) all is equipped with displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320116451 CN2698479Y (en) | 2003-11-12 | 2003-11-12 | Working roll bidirectional movement type four rolls cold rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320116451 CN2698479Y (en) | 2003-11-12 | 2003-11-12 | Working roll bidirectional movement type four rolls cold rolling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2698479Y true CN2698479Y (en) | 2005-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320116451 Expired - Fee Related CN2698479Y (en) | 2003-11-12 | 2003-11-12 | Working roll bidirectional movement type four rolls cold rolling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2698479Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101264482B (en) * | 2007-03-14 | 2010-09-01 | Ihi金属生产设备科技株式会社 | Series changing multi-stage rolling machine |
| CN102172639A (en) * | 2010-12-30 | 2011-09-07 | 东北大学 | Dynamic substitution regulating method for excessive bending of working roll of cold rolling mill |
| CN104924043A (en) * | 2014-03-17 | 2015-09-23 | 五冶集团上海有限公司 | Manufacturing method of die for correcting spindle carriage of rolling mill body |
| CN111360076A (en) * | 2018-12-25 | 2020-07-03 | 宝山钢铁股份有限公司 | Simple rolling test foundation platform |
| CN111801173A (en) * | 2018-03-09 | 2020-10-20 | 首要金属科技德国有限责任公司 | Edge wear prevention during rolling of flat rolling stock |
| CN113118242A (en) * | 2021-04-25 | 2021-07-16 | 中冶赛迪工程技术股份有限公司 | Four roller levelling machines of super high strength steel |
-
2003
- 2003-11-12 CN CN 200320116451 patent/CN2698479Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101264482B (en) * | 2007-03-14 | 2010-09-01 | Ihi金属生产设备科技株式会社 | Series changing multi-stage rolling machine |
| CN102172639A (en) * | 2010-12-30 | 2011-09-07 | 东北大学 | Dynamic substitution regulating method for excessive bending of working roll of cold rolling mill |
| CN102172639B (en) * | 2010-12-30 | 2013-01-30 | 东北大学 | Dynamic substitution regulating method for excessive bending of working roll of cold rolling mill |
| CN104924043A (en) * | 2014-03-17 | 2015-09-23 | 五冶集团上海有限公司 | Manufacturing method of die for correcting spindle carriage of rolling mill body |
| CN104924043B (en) * | 2014-03-17 | 2017-04-19 | 五冶集团上海有限公司 | Manufacturing method of die for correcting spindle carriage of rolling mill body |
| CN111801173A (en) * | 2018-03-09 | 2020-10-20 | 首要金属科技德国有限责任公司 | Edge wear prevention during rolling of flat rolling stock |
| CN111801173B (en) * | 2018-03-09 | 2022-06-14 | 首要金属科技德国有限责任公司 | Edge wear prevention during rolling of flat rolling stock |
| CN111360076A (en) * | 2018-12-25 | 2020-07-03 | 宝山钢铁股份有限公司 | Simple rolling test foundation platform |
| CN113118242A (en) * | 2021-04-25 | 2021-07-16 | 中冶赛迪工程技术股份有限公司 | Four roller levelling machines of super high strength steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |