SE507106C2 - Ways of mounting and dismantling a bearing on a heavy roller and device for carrying out the method - Google Patents

Ways of mounting and dismantling a bearing on a heavy roller and device for carrying out the method

Info

Publication number
SE507106C2
SE507106C2 SE9701549A SE9701549A SE507106C2 SE 507106 C2 SE507106 C2 SE 507106C2 SE 9701549 A SE9701549 A SE 9701549A SE 9701549 A SE9701549 A SE 9701549A SE 507106 C2 SE507106 C2 SE 507106C2
Authority
SE
Sweden
Prior art keywords
bearing
roller
bed
support
weight
Prior art date
Application number
SE9701549A
Other languages
Swedish (sv)
Other versions
SE9701549D0 (en
SE9701549L (en
Inventor
Henrik Skoglund
Original Assignee
Ssab Oxeloesund Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ssab Oxeloesund Ab filed Critical Ssab Oxeloesund Ab
Priority to SE9701549A priority Critical patent/SE507106C2/en
Publication of SE9701549D0 publication Critical patent/SE9701549D0/en
Priority to AU73528/98A priority patent/AU7352898A/en
Priority to PCT/SE1998/000592 priority patent/WO1998049454A1/en
Publication of SE9701549L publication Critical patent/SE9701549L/en
Publication of SE507106C2 publication Critical patent/SE507106C2/en

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • 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
    • B21B31/07—Adaptation of roll neck bearings
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

One dismounts a bearing (12) on a steel work roll (11) by lifting the roll on to a roll support (13) which has wheels (17-20) on which the roll will rest. The bearing (12) is then fixed in a support (41) which is movable towards and away from the roll support. Then, one applies a lifting force on the bearing for substantially balancing the weight of the bearing. By means of a hydraulic cylinder (32) applied between the roll support and the bearing support, one forces the bearing out of the roll journal while slowly rotating the roll in its support. A bearing is mounted in a corresponding manner. The bearing support (41) is carried by a truck (40) that rests on air cushions (43-46) and these air cushions are used to balance the weight of the bearing.

Description

507 106 2 rad inne i stålstativet och ansluts till elförsörjning med en standardkontakt när rota- tionen skall börja. 507 106 2 rows inside the steel frame and is connected to the power supply with a standard contact when the rotation is to begin.

Upplagshjulen 17-20 är så placerade att bädden kan ta både stora stödvalsar och små arbetsvalsar utan att hjulen flyttas. Den variation som uppstår i upplagshöjd tas upp genom att vissa lagerhus roteras innan de placeras på upplagspall.The support wheels 17-20 are placed so that the bed can take both large support rollers and small work rollers without the wheels being moved. The variation that occurs in storage height is addressed by rotating certain bearing housings before placing them on storage pallets.

Under bädden finns fyra st kassettmonterade luftkuddeelement 24-27, vilka kan tas ut för inspektion utan att lasten lyfts från bädden och två ej visade drivenheter med vilka valsbädden kan flyttas och positioneras fritt i valsverkstaden. Luftkuddefunk- tionen och drivenheterna styrs från en bärbar pneumatisk styrlåda 28 av en operatör.Under the bed there are four cassette-mounted air cushion elements 24-27, which can be taken out for inspection without the load being lifted from the bed and two drive units (not shown) with which the rolling bed can be och moved and positioned freely in the rolling workshop. The airbag function and drive units are controlled from a portable pneumatic control box 28 by an operator.

Valsbädden är på undersidan försedd med stötupptagande landningsställ 7 som ef- fektivt dämpar stöten mot golvet när valsen ll sänks ner på bädden med en travers.The roller bed is provided on the underside with shock-absorbing landing gear 7 which effectively dampens the impact against the floor when the roller ll is lowered onto the bed with a traverse.

Landningsställen skadar inte heller golvytan och ger en hög friktion mot golvet så att bädden står stilla under det fortsatta arbetet.Landing points also do not damage the floor surface and provide a high friction against the floor so that the bed stands still during further work.

Runt valsbädden löper en oljebeständig borstlist som hindrar lösa föremål från att hamna inunder bädden och störa luftkuddefunktionen. Samtidigt fungerar borstlisten som klämskydd, det går inte att få in fingrar eller fötter under vagnen och den däm- par effektivt de eventuella ljud som drivenheter och luftkuddeelement kan ge upp- hov till.An oil-resistant brush strip runs around the roller bed which prevents loose objects from falling under the bed and disturbing the air cushion function. At the same time, the brush strip acts as a pinch protection, it is not possible to get fingers or feet under the pram and it effectively attenuates any noise that drive units and air cushion elements can give rise to.

Valsbädden har två kraftiga hydraulcylindrar 3l, 33 med utåtriktade kolvstänger 32, 34.The roller bed has two powerful hydraulic cylinders 3l, 33 with outwardly directed piston rods 32, 34.

Lagerbädden 15 består av en luftkuddetruck 40 som bär en upplagspall 41.The storage bed 15 consists of an air cushion truck 40 which carries a storage pallet 41.

Luftkuddetrucken 40 visas på figur 4. Den består av en lastbärande stålram under vilken det finns fyra st kassettmonterade luftkuddeelement 43-46, vilka kan tas ut for inspektion utan att lyfta trucken. 3 507 106 Runt trucken 40 löper en oljebeständig borstlist som hindrar lösa föremål att hamna inunder trucken och störa luftkuddefunktionen. Samtidigt hindrar borstlísten att operatörema kan få in fötterna under trucken. Borstlisten förhindrar också att det dammar och håller ljudnivån på en låg nivå.The airbag truck 40 is shown in figure 4. It consists of a load-bearing steel frame under which there are four cassette-mounted airbag elements 43-46, which can be taken out for inspection without lifting the truck. 3 507 106 An oil-resistant brush strip runs around the truck 40 and prevents loose objects from falling under the truck and interfering with the airbag function. At the same time, the brush strip prevents operators from getting their feet under the truck. The brush strip also prevents it from dusting and keeping the noise level at a low level.

Längs truckens 40 centrumlinje finns två ej visade pneumatiska friktionsdrivenheter placerade, vilka ger tillräcklig dragkraft åt trucken för förflyttning. Drivenheterna och luftkuddefunktionen styrs från truckens styrpulpet 44, där alla styrkomponenter finns placerade.Along the center line of the truck 40 are two pneumatic friction drive units (not shown), which provide sufficient traction for the truck to move. The drive units and airbag function are controlled from the truck's control panel 44, where all control components are located.

För att ställa in trucken exakt rätt i förhållande till valsens centrumlinje regleras truckens luftkuddar 43-46 manuellt fram/bak vid demontering/montering, medan tryckregleringen är automatisk vid transport. Tillförselslangen för tryckluft har be- tecknats 47.To set the truck exactly correctly in relation to the center line of the roller, the truck's airbags 43-46 are manually adjusted front / rear during disassembly / assembly, while the pressure control is automatic during transport. The supply hose for compressed air has been designated 47.

För att operatören skall kunna justera in rätt lyftkraft hos luftkuddama 43-46 (dvs lyfta precis så mycket att lagret blir så obelastat som möjligt) är trucken försedd med ett vågsystem som registrerar den vikt som luftkuddevagnen bär. Med den ma- nuella tryckregleringen kan trycket i luftkuddeelementen regleras så att trucken bär lika mycket som lager med lagerhus väger så att förutsättningarna för lagerdemon- tage blir de bästa.In order for the operator to be able to adjust the correct lifting force of the airbags 43-46 (ie lift just enough so that the bearing is as unloaded as possible), the truck is equipped with a weighing system that registers the weight that the airbag cart carries. With the manual pressure control, the pressure in the airbag elements can be regulated so that the truck carries as much as the bearing with the bearing housing weighs so that the conditions for bearing disassembly are the best.

Elasticiteten i luftkuddeelementet gör att ”flythöjden” kan variera så att elementet flyter på en lyfthöjd som kan variera 6 - 8 mm från den nominella lyfthöjden på 35 mm. För att kunna hantera valsar inom hela toleransområdet är trucken också för- sedd med ett extra hydrauliskt lyft som kan lyfta upplagspallen i samma mån som valsen slipats ner. Den består av fyra små hydraulcylindrar 48-52, som manövreras parvis manuellt från styrpulpeten för att kompensera diameterreduktionen på val- sarna. Styrpulpeten 44 på trucken är placerad i ena hörnet för att ge operatören fri sikt vid montering/ demontering. 507 106 4 Upplagspallama 41 är tillverkade i fyrkantbalk och undertill försedda med land- ningsställ i PehD för att inte skada golvytan vid start och stopp. Deras övre yta är försedd med tvâ st bearbetade balkar (endast ena balken S4 visas) som positionerar lagerhuset centriskt på lastpallen när truck 40 med pall 41 körs in under lagerhuset 12 fór demontage/montage. Lagerhuset 12 vilar alltid på de bearbetade upplags- ytorna. Pallama förses också med dränering så att ev olja som rinner ur lagret vid demontage samlas upp i pallen och kan tappas av på lämplig plats.The elasticity of the airbag element means that the “floating height” can vary so that the element fl surfaces at a lifting height that can vary 6 - 8 mm from the nominal lifting height of 35 mm. To be able to handle rollers within the entire tolerance range, the truck is also equipped with an extra hydraulic lift that can lift the pallet to the same extent as the roller has been ground down. It consists of four small hydraulic cylinders 48-52, which are operated in pairs manually from the control console to compensate for the diameter reduction on the rollers. The control console 44 on the truck is located in one corner to give the operator a clear view during assembly / disassembly. 507 106 4 The support pallets 41 are made of square beams and at the bottom are equipped with landing gear in PehD so as not to damage the floor surface at start and stop. Their upper surface is provided with two machined beams (only one beam S4 is shown) which positions the bearing housing centrally on the pallet when truck 40 with pallet 41 is driven in under the bearing housing 12 for disassembly / assembly. The bearing housing 12 always rests on the machined bearing surfaces. The pallets are also provided with drainage so that any oil that flows out of the warehouse during disassembly is collected in the pallet and can be drained to a suitable place.

Upplagspallen 41 är försedd med ett stabilt fäste för hydraulcylindem med vilken lagerhusen demonteras/monteras från valsarna. De bearbetade upplagsbalkama 54 är olika för stödlagerhus och arbetsvalslagerhus, men upplagspallen 41 är identisk för båda typerna av balkar. Alla upplagspallar är bearbetade på båda iniästningsytoma så att balkama 54 som är fástade med skruvförband kan flyttas vid behov. En upp- lagspall 41 med demonterat lager kan ställas av och trucken 40 kan då användas för en annan pall.The support pallet 41 is provided with a stable bracket for the hydraulic cylinder with which the bearing housings are disassembled / mounted from the rollers. The machined support beams 54 are different for support bearing housings and work roll bearing housings, but the support pallet 41 is identical for both types of beams. All support pallets are machined on both loading surfaces so that the beams 54 which are fastened with screw joints can be surfaceed if necessary. A storage pallet 41 with disassembled bearing can be parked and the truck 40 can then be used for another pallet.

För att demontera lagret 12 lyfter man således på valsen på valsbäddens 13 hjul 17- 20, och fixerar lagret i upplagspallen 41 och balanserar lagrets tyngd med truckens 40 luftkuddar 43-46. Därefter roterar man valsen sakta med hjälp av motorerna 22, 23 medan rnan med hydraulcylindem 33 trycker ut upplagspallen 41 och därmed lagret ll i lagerhuset 12 som är ñxerat i upplagspallen. Trucken 40 som bär upp- lagspallen flyter då på sina luftkuddar 43-46. På motsvarande sätt monterar man ett lager med lagerhus och låter då hydraulcylindem 33 dra upplagspallen 41 mot vals- bädden 13.In order to dismantle the bearing 12, the roller 17 17-20 of the roller bed 13 is thus lifted, and the bearing is fixed in the support pallet 41 and the weight of the bearing is balanced with the air cushions 43-46 of the truck 40. Then the roller is rotated slowly by means of the motors 22, 23 while the tube with the hydraulic cylinder 33 pushes out the support pallet 41 and thus the bearing 11 in the bearing housing 12 which is axed in the support pallet. The truck 40 carrying the pallet fl then surfaces on its airbags 43-46. Correspondingly, a bearing with bearing housing is mounted and the hydraulic cylinder 33 is then allowed to pull the support pallet 41 against the roller bed 13.

Claims (6)

5 507 106 Patentkrav5,507,106 Patent claims 1. l. Sätt att montera respektive demontera ett lager ( 12) på en tung vals (11) k ä n n e t e c k n at av att man lyfter på valsen (11) på en valsbädd (13) som har hjul (17-20) på vilka valsen kommer att vila, fixerar lagret (12) i en upplagspall (41) som är rörlig till och från valsbädden, trycker lagret uppåt för att väsentligen ba- lansera lagrets tyngd, och pressar på lagret på respektive pressar av lagret av valsens axeltapp medan man sakta roterar valsen i valsbädden.1. l. Method of mounting or dismounting a bearing (12) on a heavy roller (11) characterized by lifting the roller (11) on a roller bed (13) having wheels (17-20) on which the roller will rest, fixes the bearing (12) in a support pallet (41) movable to and from the roller bed, pushes the bearing upwards to substantially balance the weight of the bearing, and presses the bearing on the respective presses of the bearing of the roller shaft journal. slowly rotate the roller in the roller bed. 2. Sätt enligt patentkrav 1, k ä n n e t e c k n at av att man pressar på respektive av lagret (12) med hjälp av kraftorgan (33) kopplat mellan valsbädden (13) och upplagspallen (41).2. A method according to claim 1, characterized in that pressure is applied to each of the bearings (12) by means of force means (33) coupled between the roller bed (13) and the support pallet (41). 3. Sätt enligt patentkrav 1 eller 2, k ä n n e t e c k n a t av att man låter upplagspallen (41) flyta på en luftkudde- anordning (40, 43-46) medan man pressar på respektive av lagret (12) och balanse- rar lagrets (12) tyngd med luftkuddeanordningen.Method according to claim 1 or 2, characterized in that the support pallet (41) is allowed to float on an air cushion device (40, 43-46) while pressing on each of the bearings (12) and balancing the bearing (12). ) weight with the airbag device. 4. Anordning för att montera respektive demontera ett lager (12) på en tung vals (11) innefattande en bädd (13) för valsen, k ä n n e t e c k n a d av att bädden (13) innefattar hjul eller rullar (17-20) för att uppbära valsen och en anordning (22-23) för att rotera valsen i valsbädden, en upp- lagsanordning (40, 41) för valslagret (12) är rörlig relativt valsbädden (13) och inne- fattar en anordning för att väsentligen balansera lagrets tyngd, och kraftorgan (33) är anordnade för att pressa på lagret på respektive pressa av lagret från valsens axel- tapp.Device for mounting or dismounting a bearing (12) on a heavy roller (11) comprising a bed (13) for the roller, characterized in that the bed (13) comprises wheels or rollers (17-20) for supporting the roller and a device (22-23) for rotating the roller in the roller bed, a bearing device (40, 41) for the roller bearing (12) is movable relative to the roller bed (13) and comprises a device for substantially balancing the weight of the bearing, and force means (33) are arranged to press the bearing on the respective press of the bearing from the shaft journal of the roller. 5. Anordning enligt patentkrav 4, k ä n n e t e c k n a d av att sagda anordning för att balansera lagrets tyngd innefat- tar luftkuddar (43-46). 507 106 6Device according to claim 4, characterized in that said device for balancing the weight of the bearing comprises air cushions (43-46). 507 106 6 6. Anordning enligt patentkrav 5, k ä n n e t e c k n a d av att upplagsanordningen innefattar en luftkuddeburen vagn 40) som uppbär en upplagspall (41), och organ (48-52) är anordnade fór justering av upplagspallens höjdläge på vagnen så att vagnens luftkuddar (43-46) kan användas för att balansera lagrets tyngd.Device according to claim 5, characterized in that the storage device comprises an air cushion-carried carriage 40) which carries a storage pallet (41), and means (48-52) are arranged for adjusting the height position of the storage pallet on the carriage so that the air cushions of the carriage (43-) 46) can be used to balance the weight of the bearing.
SE9701549A 1997-04-25 1997-04-25 Ways of mounting and dismantling a bearing on a heavy roller and device for carrying out the method SE507106C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9701549A SE507106C2 (en) 1997-04-25 1997-04-25 Ways of mounting and dismantling a bearing on a heavy roller and device for carrying out the method
AU73528/98A AU7352898A (en) 1997-04-25 1998-03-30 An arrangement and a method for mounting and dismounting a bearing of a heavy roll
PCT/SE1998/000592 WO1998049454A1 (en) 1997-04-25 1998-03-30 An arrangement and a method for mounting and dismounting a bearing of a heavy roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9701549A SE507106C2 (en) 1997-04-25 1997-04-25 Ways of mounting and dismantling a bearing on a heavy roller and device for carrying out the method

Publications (3)

Publication Number Publication Date
SE9701549D0 SE9701549D0 (en) 1997-04-25
SE9701549L SE9701549L (en) 1998-03-30
SE507106C2 true SE507106C2 (en) 1998-03-30

Family

ID=20406715

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9701549A SE507106C2 (en) 1997-04-25 1997-04-25 Ways of mounting and dismantling a bearing on a heavy roller and device for carrying out the method

Country Status (3)

Country Link
AU (1) AU7352898A (en)
SE (1) SE507106C2 (en)
WO (1) WO1998049454A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103569919B (en) * 2012-07-23 2016-12-21 金东纸业（江苏）股份有限公司 Hoisting apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4943855B1 (en) * 1970-04-17 1974-11-25
US3627388A (en) * 1970-09-08 1971-12-14 Morgan Construction Co Hydraulic locking and loosening device for bearing
GB1273964A (en) * 1971-04-21 1972-05-10 Inst Elektroswarki Patona Support bearing for rotary furnaces
US4286830A (en) * 1979-09-24 1981-09-01 Morgan Construction Company Combination roll neck and bearing assembly

Also Published As

Publication number Publication date
AU7352898A (en) 1998-11-24
SE9701549D0 (en) 1997-04-25
SE9701549L (en) 1998-03-30
WO1998049454A1 (en) 1998-11-05

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