EP1951452A1 - Method and device for changing rolls - Google Patents
Method and device for changing rollsInfo
- Publication number
- EP1951452A1 EP1951452A1 EP07702623A EP07702623A EP1951452A1 EP 1951452 A1 EP1951452 A1 EP 1951452A1 EP 07702623 A EP07702623 A EP 07702623A EP 07702623 A EP07702623 A EP 07702623A EP 1951452 A1 EP1951452 A1 EP 1951452A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- locomotive
- rolls
- rolling
- changing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 81
- 230000003137 locomotive effect Effects 0.000 claims abstract description 58
- 230000008859 change Effects 0.000 claims description 43
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 230000032258 transport Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 4
- 210000003746 feather Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
- B21B31/103—Manipulators or carriages therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
- Y10T29/49721—Repairing with disassembling
- Y10T29/4973—Replacing of defective part
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T483/00—Tool changing
- Y10T483/17—Tool changing including machine tool or component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T483/00—Tool changing
- Y10T483/17—Tool changing including machine tool or component
- Y10T483/1733—Rotary spindle machine tool [e.g., milling machine, boring, machine, grinding machine, etc.]
- Y10T483/1748—Tool changer between spindle and matrix
- Y10T483/1783—Tool changer between spindle and matrix including linearly translatable tool changer [e.g., shuttle, ram, etc.]
Definitions
- the invention relates to a method and a device for changing rolls, in particular of work rolls and / or intermediate rolls in a roll stand, such as roughing stand or finishing stand for rolling heavy plate, each having support and work roll sets, by supporting each other and then extending in the axial direction of the rolls on the operating side of the rolling stands, from a rolling hall to a rolling mill and driving back and installing new sets of rollers.
- a device for the change of pairs of work rolls and / or pairs of support rollers on rolling stands wherein the support rollers and the work rolls are each guided in raised or lowered chocks in the stand frame, the pair of work rolls supported on the chocks a Geradschubantriebs is extendable.
- the pair of support rollers can be extended or retracted by means of a lower support roller supported on a guide track and wheels and a roll change chair supported thereon with an upper support roller supported.
- the pair of work rolls on the drive side of the roll stand with a dimensioned for the expansion or the installation path in the stroke length hydraulic piston-cylinder drive can be coupled and disengaged in the Ausfahrabstand.
- a retracted in the altitude between the support rollers roll changing chair to the same piston-cylinder drive can be coupled and after supporting the upper support roller and the roll changing chair on the lower support roller extendable or retractable the backup roller pair.
- a corresponding method is known from this.
- a tractor is known from WO 2004/039 512 A1, with which roller sets are drawn into a roller workshop WW or are returned from there. be ren.
- the tractor is moved by gears of the tractor engage in racks.
- WO 03/015 949 A1 discloses a device for changing the working and support rollers of a strip rolling mill, wherein the roller change carriage, which can be displaced transversely to the rolling stand, receives the withdrawn old roller sets and permits replacement with new roller sets.
- the device consists of a stationary arranged on Wilsontenflurière change cylinder, the piston rod is transversely to the rolling stand and extendable, a Ausziehwagen, which is arranged at the front end of the piston rod of the change cylinder, slidably on the roll change carriage and coupled with this, that the Ausziehwagen to - Is slid transversely to the roll stand together with the roll changing car through the change cylinder.
- a roller change carriage arranged in the transverse displacement table, which is displaceable transversely to the direction of movement of the roller change carriage by a roll changing car independent displacement cylinder and through which the exchanged roller sets in and out of the frame center aligned (n) change position can be brought. Furthermore, an associated method will be described.
- WO 2005/089 972 A1 describes a method for changing sets of rolls in rolling stands of a rolling mill with several rolling stands, each having support and work roll sets, by supporting and then extending in the axial direction of a work roll set or a support roll set on the operator side in a roll workshop and subsequent retraction and installing new sets of rollers.
- the number of separate transverse transfer carriages transported on the operator side of the number of rolling mills are then brought to the roller workshop on a single connecting track in succession by a single locomotive, from where the work roller sets are moved back and interchanged on the respective transverse transfer carriages the rolling stands are discontinued and that after releasing the operator side by the Querverschiebewagen each extended to a worn-out set of work rolls worn support rolls and brought by crane in the roll workshop, maintained, transported back and re-installed in the associated rolling stands. Further described is an associated device.
- the invention has for its object to propose a flexible method for changing the sets of rolls from the rolling stands at device complexity and a device for carrying out the method according to the invention.
- This object is achieved in that a single locomotive is used in a method according to the preamble of claim 1 for changing the work rolls and / or changing the support rollers and / or for retraction and extension of a roll changing chair.
- the previously used or required second locomotive with all its facilities such as - 4 electric motors, a 50 kW - 4 gear ratios
- the invention also relates to a device for carrying out the method according to the invention.
- the only locomotive with a coupling device for coupling of support rollers and for coupling of work rolls and for coupling a roll change chair is formed.
- roller sets The entire transport of the roller sets is done with only one hydraulic roller change - locomotive. All sets of rolls are transported from the roll stand to the roll shop or back into the roll stand.
- the work roll changing device is located on the operating side of the rolling mill.
- the tasks of the work rolls - changing device is to pull used sets of work rolls from the rolling stand and then, for example, to transport to the roll workshop or to transport the newly ground sets of work rolls from the rolling mill to the rolling mill.
- the platforms on both sides, on which the sets of work rolls are transported, are welded steel structures and serve as a roadway underlay during the roll change.
- the work roll sets are moved to get from the rolling stand to the rolling mill or back into the rolling stand.
- Sliding strips / slide rails are screwed on these platforms, which serve as slideways for the drawbar with an attached work roll set.
- the platforms simultaneously cover the area of the roll change pit. They are hinged and held by a pivot point. For load suspension, they are supported on the side of the foundation.
- Such platforms allow a work roll change with a hydraulic roll change locomotive, which is arranged in the lower part of the roll change pit.
- the used sets of work rolls are now transported by the locomotive from the rolling stand to the roller workshop or the new sets of work rolls in the rolling stand.
- Support roller sets are designed.
- a trolley for transporting the sets of rolls from the rolling hall to the roller workshop or back to the rolling hall is no longer needed.
- the platforms have a weight reduction of about 50%. Furthermore, 30 1 racks with mounting material and feather keys are no longer needed. The elaborate processing on the platforms for attaching the racks is eliminated.
- the side shifting is arranged in the rolling hall in the area of the roll change pit.
- the task of the side shifting is to move the used work roll set pulled out of the rolling mill stand so far out of the roll center / center roll change pit until the new work roll set can be positioned in the center of the roll.
- the back-up roll changing device is arranged in the lower area of the roll change legs.
- the tasks of the back-up roll changing device are to transport used back-up roll sets from the rolling stand to the roll shop or the new back-up roll sets from the roll shop to the rolling mill stand.
- the platforms on both sides, on which the work rolls are transported, also serve as a roadway underlay for the back-up roll changing chair.
- the back up roller - changing chair is moved to the roll stand by means of the locomotive to change the support rollers.
- the currently used work roll shuttle locomotive is no longer needed.
- the trolley with drive between rolling hall and roller workshop is no longer needed.
- the roller change locomotive is located in the lower part of the roller change pit and consists essentially of the housing (car body): - 4 hydraulic motors with gearbox and pinion shaft 2 hydraulic cylinders
- the support roll change, the work roll change and the retraction of the support roll changing chair into the rolling mill stand are carried out by the hydraulic roll change locomotive.
- the currently used work roll shuttle locomotive is no longer needed. Even when using side shifting in the rolling hall or roller workshop, this locomotive transports the backup roller and work roll sets to the roll shop or back to the mill stand.
- the platforms arranged on both sides, on which the work rolls are transported, also serve as a roadway pedestal for the backup roll change-over chair. On these platforms, the backup roller changing chair is moved to the roll stand in the rolling stand with the help of the locomotive. The previously used for separate work roll shuttle locomotive is no longer needed.
- Figure 1 in cross section a rolling hall with a rolling mill and one of them separated by a wall roller workshop and a roll change pit.
- a rolling hall 1 in the rolling direction and on the right side of a rolling mill 2 is shown on the left side. Both areas are separated by a wall 3.
- a rolling mill 4 an upper and a lower support roller 5, 6 and an upper and a lower work roll 7, 8 are arranged.
- a locomotive 9 is used for transport from the roll stand 4 in the rolling hall 2 into the roll workshop 2, for example, to reground the rolls.
- This is located in a pit 10, which connects the rolling hall 1 and the roller workshop 2. All devices such as rails, etc. are built on a foundation or several foundations11. The locomotive 9 can thus be moved from a waiting position 12 at the right end of the pit 10 to the rolling stand 4 out.
- the pit 10 is in a lower narrow area 16 and an upper wide rich 17 divided.
- the lower narrow region 16 is only slightly wider than the locomotive 9.
- the upper wide region 17 has platforms 20 at its two edges 18, 19. These are folded down during removal or transport of the work rolls 7, 8 and have at their top guide rails 21 on which the work rolls 7, 8 can be moved.
- the platforms 20 have a distance that allows a mounted on the locomotive 9 at the top 13 coupling device 14 a pass through. For transporting the larger diameter support roll set 5, 6, the platforms 20 are folded up, thus widening the passage.
- the work rolls 7, 8 are located in the rolling hall 1 next to the roll stand 4 for further transport.
- the work rolls 7, 8 are connected via a push rod 15 with the locomotive 9 and are pulled with this from the rolling stand 4.
- the push rod 15 is released from the locomotive 9 and the lower work roll 7 and removed. Now the locomotive 9 can be coupled directly to the lower work roll 7. By a method of the locomotive 9 in the pit 10 of the set of work rolls 7, 8 enters the roll workshop. 2
- FIG. 3 is shown how a roll changing chair 25 is pushed by means of the locomotive 9 and the push rod 15 between the lower support roller 5 and the upper support roller 6 in the rolling stand 4. After the roll changing chair 25 is arranged between the support rollers 5, 6, this complete unit is pulled out of the roll stand 4 by means of the locomotive. In an intermediate stop, the push rod 15 is removed. This is followed by a direct coupling of the locomotive 9 to the lower support roller. 5
- the locomotive 9 pulls the complete unit into the roller workshop 2, as seen in FIG.
- the platforms 20 are folded up along the right and left edges of the pit 10 in order to leave a free space for the above-mentioned unit of support rollers 5, 6 and roll changing chair 25 and locomotive. to have motives 9.
- the folded-up platforms 20 are in
- the space is spanned over the roll change pit 10 and it can both the used work rolls and a new set of work rolls in the rolling hall 1, in or against the rolling direction, be moved.
- This process is also known as side-shifting.
- An embodiment of this kind means that the handling of the work rolls takes place when exchanging in the rolling hall.
- FIG. 5 shows a design in which the work rolls 7, 8 are drawn directly into the roll workshop 2.
- the platforms 20 are folded down to allow a run over.
- a support structure 26 which simplifies the handling in the processing of the individual work and support rollers.
- the work rolls 7, 8 are moved into the support structure 26 for this purpose.
- An exchange carriage 31, which can be moved on the support structure 26 in or counter to the rolling direction, exchanges used and new work rolls.
- no side-shifting is provided in the rolling hall 1. Shown is, as in Figure 4, an embodiment in which the work rolls 7, 8, located in the rolling stand 4, are coupled to the locomotive 9 (left side). On the right side is shown how the same locomotive 9 has already arrived in the roll workshop 2 in its parking / waiting position.
- Figure 6 shows an embodiment in which the support rollers 5, 6 are pulled with the locomotive 9 from the framework 4.
- no displacement platform 23 is present 8 (to replace the work rolls) be in the roll workshop 2, the support structure 26 with the movable there change carriage 31.
- no support structure 26 is constructed and allows the locomotive 9, the support rollers 5, 6 with the roll changing chair 25 between a left part and a right part of the support structure 26th transported in the roller workshop 2 and positioned for further handling.
- the back-up rolls 5, 6 are, for example, reground and have to be disassembled in the rolling shop 2 and taken to certain processing machines.
- the support rollers 5, 6 are pulled out, all the platforms 20 are folded upwards, as can be seen in cross section in FIG. 6a.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610001316 DE102006001316A1 (en) | 2006-01-09 | 2006-01-09 | Method for exchanging working rollers and/or intermediate rollers in mill stands of a rolling mill comprises transporting working roller sets and/or support roller sets from the mill stand to the roller workshop and back using a locomotive |
DE200610030934 DE102006030934A1 (en) | 2006-07-05 | 2006-07-05 | Method for changing working rolls and/or support rolls in a roll stand used in a plate rolling mill comprises using a single locomotive |
PCT/EP2007/000107 WO2007080086A1 (en) | 2006-01-09 | 2007-01-09 | Method and device for changing rolls |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1951452A1 true EP1951452A1 (en) | 2008-08-06 |
EP1951452B1 EP1951452B1 (en) | 2009-04-15 |
Family
ID=37909776
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07702628A Active EP1954416B1 (en) | 2006-01-09 | 2007-01-09 | Method and device for handling/transporting working rolls and/or support rolls |
EP07702623A Active EP1951452B1 (en) | 2006-01-09 | 2007-01-09 | Method and device for changing rolls |
EP07711324A Active EP1951453B1 (en) | 2006-01-09 | 2007-01-09 | Device for changing/transporting rolls |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07702628A Active EP1954416B1 (en) | 2006-01-09 | 2007-01-09 | Method and device for handling/transporting working rolls and/or support rolls |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07711324A Active EP1951453B1 (en) | 2006-01-09 | 2007-01-09 | Device for changing/transporting rolls |
Country Status (10)
Country | Link |
---|---|
US (5) | US8511127B2 (en) |
EP (3) | EP1954416B1 (en) |
JP (3) | JP5121721B2 (en) |
KR (3) | KR101078258B1 (en) |
AT (3) | ATE428514T1 (en) |
CA (1) | CA2635081C (en) |
DE (3) | DE502007000562D1 (en) |
ES (1) | ES2321668T3 (en) |
RU (3) | RU2379143C1 (en) |
WO (5) | WO2007080091A1 (en) |
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ATE428514T1 (en) * | 2006-01-09 | 2009-05-15 | Sms Demag Ag | METHOD AND DEVICE FOR HANDLING / TRANSPORTING WORK ROLLS AND/OR BACKUP ROLLS |
CN101879527B (en) * | 2009-05-07 | 2011-12-07 | 鞍钢股份有限公司 | Method for treating roll breakage of finish rolling working roll |
DE102009037665A1 (en) * | 2009-08-14 | 2011-02-17 | Sms Siemag Ag | Device for handling and / or transporting rolls of a roll stand |
DE102010046476A1 (en) | 2010-04-26 | 2011-10-27 | Sms Siemag Ag | Supporting roll changing device |
DE102010033753A1 (en) * | 2010-06-04 | 2011-12-08 | Sms Siemag Ag | Device for cleaning and drying rolling stands |
CN102419553A (en) * | 2010-09-28 | 2012-04-18 | 华东理工大学 | Hydraulic servo system digital model of cold continuous rolling temper mill and fault indicating method |
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DE10138588A1 (en) * | 2001-08-06 | 2003-02-20 | Sms Demag Ag | Device for exchanging the working and supporting rollers of a rolling mill comprises an exchanging cylinder, a withdrawing car, and a cross-displacement table arranged in the car which can slide through a displacement cylinder |
JP3330371B1 (en) * | 2002-03-12 | 2002-09-30 | 有限会社大野設計事務所 | Roll changer for rolling mill |
DE10223000A1 (en) | 2002-05-24 | 2003-12-04 | Sms Demag Ag | Method and device for changing pairs of work rolls and / or pairs of backup rolls on roll stands |
DE20320404U1 (en) * | 2002-09-30 | 2004-06-24 | Kocks Technik Gmbh & Co | Roll stand for rolling rod or tubular material |
DE10250431A1 (en) * | 2002-10-30 | 2004-05-13 | Sms Demag Ag | Rolling mill with support plates |
DE10256749A1 (en) | 2002-12-05 | 2004-06-17 | Sms Demag Ag | Rolling mill with means for changing rolls |
DE102004007831A1 (en) * | 2004-02-18 | 2005-09-01 | Sms Demag Ag | Replacing sets of rollers mounted in frames in rolling mill comprises bringing replacement rollers in trucks pulled by single locomotive along frames, worn rollers then being removed and replaced |
ATE428514T1 (en) * | 2006-01-09 | 2009-05-15 | Sms Demag Ag | METHOD AND DEVICE FOR HANDLING / TRANSPORTING WORK ROLLS AND/OR BACKUP ROLLS |
DE102009037665A1 (en) * | 2009-08-14 | 2011-02-17 | Sms Siemag Ag | Device for handling and / or transporting rolls of a roll stand |
DE102010046476A1 (en) * | 2010-04-26 | 2011-10-27 | Sms Siemag Ag | Supporting roll changing device |
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2007
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- 2007-01-09 RU RU2008132862/02A patent/RU2379143C1/en active
- 2007-01-09 JP JP2008543855A patent/JP5121721B2/en active Active
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- 2007-01-09 JP JP2008548998A patent/JP4988763B2/en active Active
- 2007-01-09 WO PCT/EP2007/000112 patent/WO2007080088A1/en active Application Filing
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