EP0509136A1 - Walze und Walzgerüst - Google Patents

Walze und Walzgerüst Download PDF

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Publication number
EP0509136A1
EP0509136A1 EP91117673A EP91117673A EP0509136A1 EP 0509136 A1 EP0509136 A1 EP 0509136A1 EP 91117673 A EP91117673 A EP 91117673A EP 91117673 A EP91117673 A EP 91117673A EP 0509136 A1 EP0509136 A1 EP 0509136A1
Authority
EP
European Patent Office
Prior art keywords
rolling
roller
sleeve
roller shaft
shaft
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
EP91117673A
Other languages
English (en)
French (fr)
Other versions
EP0509136B1 (de
Inventor
Takashi Nagamine
Jun Furukawa
Masayoshi Matsuda
Misao Makinohara
Hiroatsu Asari
Masatoshi Fukuda
Ryoichi Yamase
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.)
Kawasaki Heavy Industries Ltd
JFE Engineering Corp
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
NKK Corp
Nippon Kokan Ltd
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
Priority claimed from JP3114079A external-priority patent/JP3024816B2/ja
Application filed by Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK, NKK Corp, Nippon Kokan Ltd filed Critical Kawasaki Heavy Industries Ltd
Publication of EP0509136A1 publication Critical patent/EP0509136A1/de
Application granted granted Critical
Publication of EP0509136B1 publication Critical patent/EP0509136B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21B27/02—Shape or construction of rolls
    • B21B27/028—Variable-width rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • 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
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/18—Adjusting or positioning rolls by moving rolls axially

Definitions

  • the present invention relates to a rolling roller so-called (flat roller) that can adjust the roll width, which means gap of the shoulder of the rolling wheel portion, so as to roll flat steel, and also relates to a rolling mill provided with the rolling roller.
  • Rolling mills for rolling steel have a horizontal roller that comprises a roller shaft and sleeves that engage with the outer side of the roller shaft.
  • Such a configuration makes it possible to roll H-section steels that have different web heights since the position of the sleeve in the axial direction can be changed to alter the roll width, which means the gap between the shoulder of the rolling wheel provided to the sleeve and the shoulder of the rolling wheel provided to the roll shaft, or the gap between the shoulders of each of the rolling wheels of two sleeves.
  • some rolling mills have an adjustment screw and a rotational drive mechanism built into the rolling roller so that the position of the sleeve in the axial direction can be adjusted by turning the screw to feed the sleeve.
  • An object of the present invention is to provide a rolling roller that can have the position of the sleeve adjusted and that does not have a drive mechanism to enable this provided to the roller itself, thereby having a simple structure that facilitates replacement, and a rolling mill that can have the roll width adjusted on line using such a rolling roller.
  • the rolling roller of the present invention engages at least one sleeve with respect to a roller shaft and that includes a rolling wheel in two places in addition to on one sleeve, and is formed so a place other than an inner side of a rolling wheel tightly fits into and engages a sleeve and a roller shaft, and so that hydraulic fluid supply paths to these places of fitting and engagement are formed internally.
  • the hydraulic fluid supply paths are, for example, formed via an internal portion of a roller shaft or sleeve and from a distal end.
  • the rolling roller described above can be fixed so that exchange of the rolling wheel is possible with respect to one sleeve and another portion such as another sleeve or roller shaft.
  • the rolling mill of the present invention can have a rolling roller immovably supported in the axial direction and so as to be freely rotatable by means of chocks at one sleeve and at two places other than the mounting position of the sleeve, and including means assembled into a housing via said chocks and which connects said hydraulic fluid supply means, such as piping that is connected to a pump or the like, to the supply paths and that adjusts a position of engagement in the axial direction of a sleeve and a roll shaft with respect to at least one of the chocks.
  • said hydraulic fluid supply means such as piping that is connected to a pump or the like
  • This adjustment means can be any means as long as it is mounted to the fixed housing or the like, to a structural object on the same floor, or to the facility installation platform, and as long as it exerts a force in with respect to the chock, in the direction of the shaft of the rolling roller.
  • the rolling roller of the present invention With the rolling roller of the present invention, the tightening force at the place of fitting and engagement tightly fixes the sleeve, without the use of any special mechanisms, with respect to the roller shaft.
  • the roller wheels respectively provided at the two places on the one sleeve and the roller shaft that is, the roller wheels respectively provided at the two places of the one sleeve and another sleeve perform the rolling of the formed steel.
  • the adjustment of the roll width which means the gap between the shoulder of the roller wheels at the two places described above, in such a rolling roller can be performed by applying hydraulic pressure to the place of engagement via hydraulic fluid supply paths such as through the implementation of oil injection, and then applying relative movement between the sleeve and the roller shaft at that place. If a hydraulic pressure (so-called surface pressure) that exceeds the tightening force is applied to the entire region of the place of engagement described above, and if that place is not the inner side of the roller wheel, then the internal diameter of the sleeve is effectively increased because of Pascal's Principle for fluid pressure.
  • position adjustment of the sleeve with respect to the roller shaft can be easily performed by one of many means such as a special drive mechanism or a simple fitting or jig of the manual operation type so that it is possible to adjust the roller width even inside the rolling mill while on line, or in the on line status when the rolling roller is taken from the rolling mill.
  • the fluid pressure can be reduced and the sleeve engaged with the roller shaft and fixed.
  • the place for engagement is on the inner side of the roller wheel, then the same portion of thickness can prevent the expansion of the inner diameter of the sleeve, so that during hot rolling, the temperature conditions of that portion are considered whenever roll width adjustment has to be performed. For this reason, a place on the inner side of the rolling wheel should be avoided as the place for engagement.
  • this rolling roller does not require the provision of a drive mechanism such as a sleeve or the like, to the rolling roller itself and so the structure of the portion that is the object of exchange is simplified and there is the advantage of exchange operation being facilitated.
  • the rolling roller can be exchanged by independently exchanging the roller wheel that is easily worn because it is in contact with the material of the object to be rolled, and therefore has a long life as a rolling roller. This is to say that if only the rolling wheel that is easily worn, deformed or cracked is exchanged, the other portions that have relatively little wear will able to be used for a long period.
  • the rolling mill of the present invention is provided with the rolling wheel described above as the flat roller, and is also provided with hydraulic fluid supply means to between the roller shaft and the sleeve, which is the place of tightening and engagement, and means for adjusting the position of engagement of the sleeve via the chock and so the adjustment of the position of the roller width is simple and the maintenability of the rolling roller is also simplified. More specifically, the adjustment of the roller width can be performed by supplying hydraulic fluid from the supply means described above and via the hydraulic fluid supply paths to the place of tightening and engagement and by using the adjustment means described above to change the position between the roller shaft and the sleeve via the chock.
  • the chock that is, the bearing box supports the rolling roller via the bearings and so the roller width adjustment is can be performed, for example, while the rolling roller is rotating.
  • the engagement position adjustment means is not provided to the roller itself, it is possible to remove only the rolling roller itself without removing the adjustment means, and opening the connection between the rolling roller and the hydraulic fluid supply means is simple and so other than the adjustment means described above and the fluid supply means described above, the rolling roller of the present invention can have maintenance, including demounting and mounting, operation performed in an effective status with respect to the cost and the workability.
  • the engagement position adjustment means for between the sleeve and the roller shaft is provided to a portion other than the rolling roller as described above and so the speed and the performance for adjusting the roller width can be easily raised.
  • the limitations of size and weight result in the means having an insufficient performance, and hamper the fast adjustment of the roll width.
  • FIG. 1 is a horizontal sectional drawing taken along the rolling roller and shows one portion of a rolling mill according to a first embodiment of the present invention
  • FIG. 2 is an enlarged drawing of the portion indicated by A in FIG. 1.
  • This rolling mill is a universal mill for rolling H-section steel and, in addition to the roller 1 shown in the figure, has another rolling roller (not shown in the figure) and which is parallel to the roller 1, while two vertical rollers (also not shown in the figure) are vertically provided at each end of the shaft.
  • the gap W1 between the shoulders 11a and 21a on each of the outer sides of the rolling wheels 11 and 21 in the center of the drawing is the rolling width, and becomes the height of the web (inner piece) of the H-section steel that is rolled.
  • the rolling roller 1 engages with the roller shaft 10 and the sleeve 20 as shown in FIG. 1. and so is supported by the chocks 30 and 40 (so-called the bearing box) at two places provided to the two outer sides of the rolling wheels 11 and 21.
  • Engaging the roller shaft 10 and the sleeve 20 allows both to be slid to change the dimension of the gap W1, and enables various types of H-section steel having different web heights to be roller without exchanging the rolling roller 1.
  • the transmission of the rolling torque from the roller shaft 10 to the sleeve 20 is such that there is a sufficient frictional force due to the tightening between the two so that there is no relative movement between the two.
  • the transmission of the rolling torque is made more definite by the gear 12 between the roller shaft 10 and the sleeve 20 although the two can be connected by a spline.
  • the rolling wheels 11 and 21 are made into a single unit by being respectively welded to the outer circumference of the roller shaft 10 and the sleeve 20.
  • the distal end portion 13 of the roller shaft 10 is the connection portion to the rotational drive source (not shown in the figure) and that comprises a motor and the like.
  • the chocks 30 and 40 are inserted into the main body between the fixed housing 101 of the rolling mill so that they do not rotate, but can move in the direction of the shaft, and each support the roller 1 via the bearings 31 and 41 on their inner sides respectively, so that the roller 1 is freely rotatable. Moreover, the chock 30 is directly supported on the outer circumference of the sleeve 20 and the chock 40 supports the roller shaft 10, while each of the chocks 30 and 40 sufficiently supports the thrust load as well as the radial load.
  • the gap W1 described above is freely set, that is, the sleeve 20 can be moved and fixed with respect to the roller shaft 10, and so the rolling mill is made to have the mechanisms 1) and 2) described below.
  • the engagement position adjustment means 110 and 120 have their distal end portions 112 and 122 can be mounted and dismounted to and from their respective brackets and when each of the cylinders 112b and 122b are contracted, the keeper plates 112a and 122a are separated from the brackets 32 and 42 and retreat in the outwards direction.
  • the separation between the piping 51 and the joint 52 for example, enables the rolling roller 1 that is to be exchanged (that is, the sleeve 20 and the rolling wheels 11 and 21 assembled to the rolling roller 10) to be taken from the fixed housing 101 along with the chocks 30 and 40, and independently from the engagement position adjustment means 110 and 120.
  • the engagement position adjustment means 110 and 120 are not removed and remain in fixed the housing 101 and the distal end portions 112 and 122 engage with respect to the chock 30, 40 of the rolling roller 1 that is newly placed in.
  • the rolling roller 1 can be exchanged without any ancillary mechanisms to move it between the roller shaft 10 and the sleeve 20 and to fix it.
  • the chocks 30 and 40 are demounted and mounted with respect to the rolling roller 1 that has been taken from the rolling mill but this work entails no particular difficulty and is performed in the conventional manner.
  • the gaps W1 and W2 of the rolling wheels 11 and 21 (the shoulders 11a and 21a) of the rolling roller 1 is as described below.
  • the engagement position adjustment means 110 and 120 are provided to the fixed housing 101 for either of both of the chocks 30 and 40 but an engagement position adjustment means 110, 120 that has such a contraction and elongation function can perform change of the gap W1 by being provided to either only the chock 30 or the chock 40.
  • FIG. 3 and FIG. 4 show rolling mills of second and third embodiments, and that are provided with an adjustment mechanism for only the gap between the fixed housing and the chock on one side.
  • the adjustment mechanism 110 is provided only with respect to the chock 30 that directly supports the sleeve 20, and there is no contraction and elongation function with respect to the chock 40 on the side that supports the roller shaft 10, and there is only a stopper means 130 fixed to the fixed housing 101 so as to determine the reference position of the chock 40.
  • the stopper means 130 is provided with a hydraulic housing 132b that has mounted to it a keeper plate 132 to the end that contracts and elongates, and has only the function of the distal end portion 122 of the adjustment means 120 described above.
  • the chock 40 and the concave portion 43a of the pair of brackets 43 engage the keeper plate 132a if the cylinder 132b is elongated, and for the plate 132a to be separated from the bracket 43 and retreat to the outer side when the cylinder 132b is contracted.
  • the plate 132a of the stopper means 130 does not engage with the concave portion 43a of the bracket 43 and so the stopping of the movement in the direction of the shaft of the rolling roller 1 and with respect to the fixed housing 101 is due to the force of the adjustment manes 110.
  • the force of the rolling reaction force that moves the absolute position of the rolling roller 1 is small and so no problems occur because of it.
  • roller wheel portion can be fixed with respect to the roller wheel and the sleeve as shown in FIG. 1 (for the first embodiment) so that it can be exchanged but it is also possible for it to be a unit as in the cases shown in FIG. 3 (for the second embodiment) and FIG. 4 (for the third embodiment).
  • the rolling roller of the present invention has simple adjustment of the roller width and also does not require a drive mechanism (engagement position adjustment means) to be provided to the rolling roller itself for adjustment, and therefore has a simple structure. Accordingly, it is possible to eliminate mechanisms for spare rollers and for the cost to be lowered, along with other advantages such as simplified maintenance and exchange operations for the rolling rollers.
  • the rolling roller can be made to have an extended life by exchanging only the rolling wheel in accordance with the conditions of wear. This is an important factor in reduce the costs involved with rolling.
  • the rolling mill of the present invention produces the following effects.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP91117673A 1991-04-17 1991-10-16 Walze und Walzgerüst Expired - Lifetime EP0509136B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3114079A JP3024816B2 (ja) 1990-04-17 1991-04-17 圧延ロールおよび圧延機
JP114079/91 1991-04-17

Publications (2)

Publication Number Publication Date
EP0509136A1 true EP0509136A1 (de) 1992-10-21
EP0509136B1 EP0509136B1 (de) 1995-01-11

Family

ID=14628536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117673A Expired - Lifetime EP0509136B1 (de) 1991-04-17 1991-10-16 Walze und Walzgerüst

Country Status (3)

Country Link
EP (1) EP0509136B1 (de)
KR (1) KR940002747B1 (de)
DE (1) DE69106692T2 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0655283A2 (de) * 1993-11-15 1995-05-31 MANNESMANN Aktiengesellschaft Mehrgerüstige Walzstrasse
EP0721810A1 (de) * 1993-07-21 1996-07-17 Sms Schloemann-Siemag Aktiengesellschaft Richtmaschine für gewalzte Träger, insbesondere Hyper-Beams
DE4442568B4 (de) * 1994-11-30 2004-08-26 Sms Demag Ag Breitenverstellbare Horizontalwalze für ein Universalwalzgerüst
CN106238466A (zh) * 2016-08-27 2016-12-21 济宁市鲁星工程机械有限责任公司 一种轧轮自动调宽装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10159155A1 (de) * 2001-12-01 2003-06-18 Sms Demag Ag Walzenanordnung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3720144A1 (de) * 1986-06-19 1987-12-23 Mitsubishi Metal Corp Walze fuer ein walzengeruest

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3720144A1 (de) * 1986-06-19 1987-12-23 Mitsubishi Metal Corp Walze fuer ein walzengeruest

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, M field, vol. 11, no. 388, December 18, 1987 THE PATENT OFFICE JAPANESE GOVERNMENT page 49 M 652 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0721810A1 (de) * 1993-07-21 1996-07-17 Sms Schloemann-Siemag Aktiengesellschaft Richtmaschine für gewalzte Träger, insbesondere Hyper-Beams
EP0655283A2 (de) * 1993-11-15 1995-05-31 MANNESMANN Aktiengesellschaft Mehrgerüstige Walzstrasse
EP0655283A3 (de) * 1993-11-15 1995-09-06 Mannesmann Ag Mehrgerüstige Walzstrasse.
DE4442568B4 (de) * 1994-11-30 2004-08-26 Sms Demag Ag Breitenverstellbare Horizontalwalze für ein Universalwalzgerüst
CN106238466A (zh) * 2016-08-27 2016-12-21 济宁市鲁星工程机械有限责任公司 一种轧轮自动调宽装置
CN106238466B (zh) * 2016-08-27 2018-07-17 济宁市鲁星工程机械集团有限公司 一种轧轮自动调宽装置

Also Published As

Publication number Publication date
EP0509136B1 (de) 1995-01-11
DE69106692D1 (de) 1995-02-23
KR940002747B1 (ko) 1994-04-02
KR920019435A (ko) 1992-11-19
DE69106692T2 (de) 1995-10-19

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