EP3150291A1 - Procede et dispositif destines au refroidissement d'un cylindre dispose dans une cage de laminoir - Google Patents

Procede et dispositif destines au refroidissement d'un cylindre dispose dans une cage de laminoir Download PDF

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Publication number
EP3150291A1
EP3150291A1 EP16187319.5A EP16187319A EP3150291A1 EP 3150291 A1 EP3150291 A1 EP 3150291A1 EP 16187319 A EP16187319 A EP 16187319A EP 3150291 A1 EP3150291 A1 EP 3150291A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
roll
roller
movement
nozzle bar
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
Application number
EP16187319.5A
Other languages
German (de)
English (en)
Other versions
EP3150291B1 (fr
Inventor
Axel Barten
Faruk Niksic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Achenbach Buschhetten GmbH and Co KG
Original Assignee
Achenbach Buschhetten GmbH and Co KG
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.)
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Publication of EP3150291A1 publication Critical patent/EP3150291A1/fr
Application granted granted Critical
Publication of EP3150291B1 publication Critical patent/EP3150291B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally

Definitions

  • the present invention relates to a method for cooling and / or lubricating at least one roll arranged in a roll stand, in which at least one nozzle bar associated with the roll is arranged with at least one row of spray nozzles for impinging a roll surface of the roll with a fluid parallel to a roll axis is changed by means of at least one adjusting gear in its axial distance from the roller, such that the distance between the spray nozzles and the roller surface remains constant with decreasing due to wear of the roller roll diameter.
  • the invention relates to a device for carrying out the method.
  • Devices of the type mentioned serve to act on the roll surfaces of the nip defining work rolls defined with a cooling and / or lubricating medium, which is output from the spray nozzles of the nozzle beam.
  • the spray cone formed by the spray nozzles and the distance between the individual spray nozzles are coordinated so that the on the Rolling surface resulting wetting surfaces form the desired spray pattern, which may be formed depending on the specification in the horizontal direction largely constant or even changing in the horizontal direction, for example by a differentiated loading defined surface areas in the longitudinal axis of the work rolls uneven cooling to define a "thermal roll bale" and thus to influence the flatness of rolled strip material.
  • the spray pattern is formed consistently, so for example overlapping wetting surfaces of adjacent nozzles regardless of the roll diameter always the same size, so that can effectively be prevented as a result of increasing the distance between the nozzle bars and the roll surface of the work rolls, the coverage areas of the wetting surfaces are correspondingly larger and thereby local coolant surplus can arise on the roll surface, which can lead to an undesirable influence on the cooling and a corresponding impairment of the rolling track quality.
  • WO 2010/057610 A8 a method and a device for relative positioning of a rolling mill arranged in a nozzle beam is known, wherein the adjustment of the relative position of the nozzle beam relative to a roll surface of a roller arranged in the roll takes place in that the nozzle beam is changed by means of a rolling mill arranged on the adjusting gear in its axial distance from the roller.
  • This is intended to ensure that the distance between the spray nozzles and the roll surface remains constant, in particular when the roll diameter decreases due to wear of the roll.
  • Known actuating mechanism allows movement of the nozzle beam, in which two each effected with different adjusting cylinders, independent of each other pivotal movements of the nozzle beam are performed.
  • the first of the two actuating cylinders is arranged on the rolling stand and acts on a relative to the rolling stand pivotable first adjusting lever.
  • the second actuating cylinder is arranged on the first adjusting lever and acts on a second lever which can be pivoted relative to the first adjusting lever and which is connected to the nozzle bar.
  • the known complex kinematic arrangement for installing the adjusting gear in the mill requires a considerable installation space.
  • the known actuating gear is only suitable for use with the nozzle bar associated with the upper roller of a pair of work rolls. Due to the regularly installed in the lower roll inlet fitting arise in the area of the lower nozzle beam cramped installation conditions, so that for the lower roller associated nozzle beam only a simple built-up cooling device is used with a correspondingly simpler operating gear with limited movement possibilities.
  • the upper nozzle beam associated actuating gear of the known cooling device only a pivoting of the nozzle bar in the direction of the roll axis of the roller by means of the first actuating cylinder, wherein the second actuating cylinder allows a vertical position correction of the nozzle beam to adjust the desired distance of the spray nozzles relative to the roll surface of the roller.
  • the present invention seeks to propose a method or a device that allows a more precise alignment of the spray nozzles relative to the roll surface and a space-saving design of the adjusting gear.
  • the invention has the features of claim 1.
  • a movement of the nozzle beam which is composed of a straight-line translational movement of the nozzle beam in the direction of the roller and a pivoting movement about a longitudinal axis of the nozzle beam in the opposite direction.
  • the present invention composed of a pivoting movement and a translational movement feed offers the opportunity simultaneously with the supply of the nozzle bar in the direction of the roll surface to set a defined pivot position of the nozzle beam, such that a defined by the main spray axis of the spray nozzles spray axis remains aligned during wear of the roller on the roll axis.
  • the translational movement of the pivotal movement of the nozzle bar is superimposed, such that the pivoting movement of the nozzle bar is carried out eccentrically to a bearing axis of the nozzle beam on a side plate of the rolling stand, wherein the longitudinal axis of the nozzle bar moves during the pivoting movement to the roll axis, and the nozzle bar during the eccentric pivoting movement for changing a spray axis formed between the spray axis and the horizontal axis performs the rotation about its longitudinal axis in the opposite direction.
  • the translational movement of the nozzle bar takes place simultaneously with the pivoting movement of the nozzle bar, so that a drive device for carrying out the movement with the actuating mechanism is sufficient.
  • Serving for the storage of the nozzle beam side plate can be fixedly arranged on the rolling stand or be movable or pivotable relative to the rolling stand.
  • two actuating gear are coupled by a linkage to perform a synchronous movement, wherein the actuating gear are each associated with one of two defining a nip rollers of a work roll assembly, such that the movement of the nozzle beam symmetrical to a running through the nip Rolling line is done.
  • the coupling gear allows in addition to a synchronous execution of the feed movements of the upper nozzle beam and the lower nozzle beam drive both actuating gear via a common drive means.
  • both nozzle bars are moved by means of a drive device acting on the coupling gear.
  • the drive of the coupling mechanism is effected by means of a drive device acting in the rolling line, since a setting cylinder can thus be arranged in the roll gap plane in a particularly space-saving design.
  • the inventive device for cooling and / or lubricating at least one roller arranged in a roll stand has the features of claim 6.
  • the actuating mechanism is designed such that a directed away from the roller Schwenkbwegung of the nozzle beam is superimposed on a bearing axis in the rolling mill a linear translational movement of the longitudinal axis of the nozzle beam in the direction of the roll axis.
  • the nozzle bar for carrying out the pivoting movement is rotatably mounted on a rotatably mounted on a side plate of the rolling stand, driven by a rotary drive eccentric, and the nozzle bar is movably connected to the rolling mill to perform the translational movement via a slotted to the nip guide link with the rolling mill.
  • the eccentric When the eccentric is designed as an eccentric pin, which rotatable with an outer pin member on the side plate of the rolling mill and is arranged with an inner pin member rotatably mounted on the nozzle beam, the eccentric can be carried out in a particularly space-saving manner.
  • the slotted guide has a arranged on the side plate of the roll stand groove and arranged on the nozzle bar sliding block, so that the design of the slotted guide without a substantial increase in the mass of the moving by means of the actuating gear nozzle bar.
  • the device comprises a second actuating gear, wherein both actuating gears each interact with one of two parallel nozzle bars, the nozzle bars are each associated with one of two defining a nip rollers of a work roll assembly, and wherein the actuating gear via a coupling gear of a common drive means are driven, such that the movement of the nozzle bars takes place symmetrically to a nip plane, both the upper roller and the lower roller of the work roll assembly can be applied in the same way defined with a cooling fluid.
  • a translational drive device acting on the coupling gear in the rolling line is provided for executing a common drive device of the nozzle bar, so that, for example, a setting cylinder can be arranged in the plane of the rolling line to save space.
  • a work roll assembly 11 arranged in a roll stand 10 is shown with two rolls 12, 13 which are each supported by a support roll 14.
  • rollers 12, 13 of the work roll assembly 11 define by their distance from each other a nip 15 through which a material web not shown here is conveyed.
  • inlet region 41 is located upstream of the roll gap, for example, in the Fig. 3 and 6 recognizable inlet fitting 16, which in the present case in addition to a plurality of predominantly below a plane defined by a rolling line 43 guide rollers 25 comprises an air slide 17, which allows the application of a rolling line in the rolling line 43 fed material web with a Tragluftpolster to the threading a material web start into the nip 15 to simplify.
  • a roll cooling device 18 With an upper nozzle beam 19 and a lower nozzle beam 20, which, as in Fig. 3 illustrated three each horizontally, ie in the present case perpendicular to the plane of the drawing aligned rows of nozzles 21, 22 and 23, each having a plurality of spray nozzles 24, which allow loading of a roller surface 52 of the rollers 12, 13 with a cooling fluid.
  • FIG. 3 shows, in particular because of the adjacent to the nip 15 required arrangement of the roll nip valve 16 narrow space for the arrangement of the nozzle bars 19, 20 in the inlet region 41 of the nip 15th
  • the nozzle bars 19, 20 are rotatably mounted in bearing receivers 26 which are fixedly connected to a side plate 27 of the roll stand 10.
  • bearing receivers 26 For rotatably supporting the nozzle bars 19, 20 are formed in the bearing receivers 26 designed as sleeves eccentric pin 28 which rotatably received with an outer pin member 29 rotatably in the bearing holder 26 and with an inner pin member 30 in a bearing end 31 of the nozzle beam 19, 20.
  • eccentric drive lever 32 With the outer pin member 29 of the eccentric pin 28 formed here as an eccentric drive lever 32 is fixedly connected via a hinge 33 articulated to a first lever member end 36 of a lever member 34 via a second lever member end 37 and a connector 38 is a non-positive connection a positioning cylinder 39 of a translational drive device 40 which is arranged on a side plate 27 of the roll stand 10. To define a rectilinear translational movement of the actuating cylinder 39, this is provided with a parallel guide 49.
  • lever member 34 forms a first element of a here designed as a toggle coupling mechanism 35, the one second lever member 34 for frictionally pivotal connection with a drive lever 32 of a provided for supporting the lower nozzle beam 20 eccentric pin 28 has.
  • a gate groove 42 is formed on the bearing seat 26, wherein in the present case, the bearing seat 26 for forming the slide groove 42 a particular in Fig. 2 having gate block 54 which simultaneously forms a traverse connecting the bearing receptacle 26 of the upper nozzle bar 19 with the bearing receptacle 26 of the lower nozzle bar 20.
  • the nozzle bar 19 has a sliding block 44 designed here as a guide roller in the present case at the bearing end 31 of the nozzle bar 19.
  • Fig. 6 shows, due to the eccentric mounting of the nozzle beam 19 in the bearing seat 26, a longitudinal axis 45 of the nozzle beam 19 offset by the eccentricity e with respect to a bearing axis 46 of the nozzle beam 19 in the bearing seat 26.
  • a spray axis 48 corresponding to one of the main spray axis directions becomes Spray nozzles 24 and the horizontal H trained Sprühachsenwinkel ⁇ 1 at a feed movement of the nozzle beam 19 in the direction of the roller 12 continuously larger.
  • the roller cooling device 18 cooperates with the upper nozzle bar 19 via the actuating gear 50 and with the lower nozzle bar 20 with a second actuating gear 51.
  • the actuating gears 50, 51 are driven by a coupling mechanism 35 designed here as a toggle lever with a common drive device 40 arranged in the rolling line 43.
  • the actuating gear 50, 51 allow both an adjustment of the distance of the spray nozzles 24 of the nozzle bars 19, 20 of a roller surface 52 and an adjustment of the Sprühachsenwinkels to different roller diameters d 1 and d 2 of the rollers 12, 13th
  • Fig. 2 and 3 the positioning of the nozzle bars 19, 20 is shown, which is aligned with the larger roller diameter d1, that is, for example, a rolling diameter corresponding to the new condition of the rollers 12, 13.
  • Fig. 3 shows, between a spray nozzle plane 53 of the nozzle bar 19, 20 and the roller surface 52 of the rollers 12, 13 respectively with respect to the upper nozzle bar 19 and the lower nozzle bar 20 coincident the distance a1 formed.
  • a spray axis angle ⁇ 1 is formed, such that the spray axis 48 is aligned with a roll axis 55, or this cuts.
  • Fig. 4 and 5 is the relative positioning of the nozzle beam 19, 20 with respect to the rollers 12, 13 shown at a reduced roller diameter d2, so after reaching a corresponding wear of the rollers 12, 13.
  • a distance a 2 is set between a roller surface 56 and the spray nozzle plane 53 which is identical to the distance a 1 in order to substantially maintain the size of spray cones 57 of the spray nozzles 24 and thus a correspondingly substantially uniform wetting surface on the reduced roller surface 56 train. If the size of the spray cone 57 is to be more precisely adapted to the smaller roll diameter d 2 , the distance a 2 can even be reduced slightly compared to the distance a 1 , so that the wetting area is correspondingly reduced.
  • a spray axis angle ⁇ 2 is now formed between the spray axis 48 of the spray nozzles 24 of the middle nozzle row 22 and the horizontal, which is increased relative to the spray axis angle ⁇ 1 , so that the spray axis 48 still on the roll axis 55 of the now reduced in diameter rolls 12, 13 is aligned or the roller axes 55 intersects.
  • the nozzle bars 19, 20 are provided with a series arrangement of additional hot nozzles 58, which allow influencing the flatness of rolled strip material, especially in bank areas.
  • the hot nozzles 58 further increase the overall volume of the nozzle bars 19, 20 and further restrict the space available for accommodating the actuating gears 50, 51 in the region of the inlet fitting 16, the actuating gears 50, 51 can be accommodated without function restriction, as shown in the exemplary embodiment.
  • a Wegmesssytem can be used, the nozzle bars 19, 20 depending on the current roll diameter of the rollers 12, 13 for reducing the axial distance between the nozzle bars 19, 20 and the rollers 12, 13, so that virtually a In situ relative positioning of the nozzle bars 19, 20 is possible, which allows even during the ongoing operation of a rolling mill, a change in the distance between the nozzle bars 19, 20 and the roller surface 52.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP16187319.5A 2015-10-01 2016-09-06 Procede et dispositif destines au refroidissement d'un cylindre dispose dans une cage de laminoir Active EP3150291B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015219053.6A DE102015219053A1 (de) 2015-10-01 2015-10-01 Verfahren und Vorrichtung zum Kühlen einer in einem Walzgerüst angeordneten Walze

Publications (2)

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EP3150291A1 true EP3150291A1 (fr) 2017-04-05
EP3150291B1 EP3150291B1 (fr) 2018-08-01

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EP16187319.5A Active EP3150291B1 (fr) 2015-10-01 2016-09-06 Procede et dispositif destines au refroidissement d'un cylindre dispose dans une cage de laminoir

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EP (1) EP3150291B1 (fr)
DE (1) DE102015219053A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112317542A (zh) * 2020-10-28 2021-02-05 洛阳万基铝加工有限公司 一种用于轧辊的雾化喷油装置
CN115488168A (zh) * 2022-09-26 2022-12-20 马鞍山延隆新材料科技有限公司 一种大压下量高延性冷轧带肋钢筋生产用润滑冷却装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4912955A (en) * 1988-12-05 1990-04-03 Norandal Usa Inc. Spray system for rolling mill
JPH02241605A (ja) * 1989-03-14 1990-09-26 Nippon Steel Corp 圧延ロールのウォータージャケット式冷却装置
DE102009040876A1 (de) * 2008-11-18 2010-05-20 Sms Siemag Ag Vorrichtung zum Kühlen einer Walze in einem Walzgerüst

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4206542B2 (ja) * 1999-02-01 2009-01-14 株式会社Ｉｈｉ ロール冷却装置とこれを備えた圧延設備
DE102009053074A1 (de) * 2009-03-03 2010-09-09 Sms Siemag Ag Verfahren und Kühlvorrichtung zum Kühlen der Walzen eines Walzgerüstes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4912955A (en) * 1988-12-05 1990-04-03 Norandal Usa Inc. Spray system for rolling mill
JPH02241605A (ja) * 1989-03-14 1990-09-26 Nippon Steel Corp 圧延ロールのウォータージャケット式冷却装置
DE102009040876A1 (de) * 2008-11-18 2010-05-20 Sms Siemag Ag Vorrichtung zum Kühlen einer Walze in einem Walzgerüst

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112317542A (zh) * 2020-10-28 2021-02-05 洛阳万基铝加工有限公司 一种用于轧辊的雾化喷油装置
CN112317542B (zh) * 2020-10-28 2022-05-31 洛阳万基铝加工有限公司 一种用于轧辊的雾化喷油装置
CN115488168A (zh) * 2022-09-26 2022-12-20 马鞍山延隆新材料科技有限公司 一种大压下量高延性冷轧带肋钢筋生产用润滑冷却装置

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EP3150291B1 (fr) 2018-08-01
DE102015219053A1 (de) 2017-04-06

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