US20090126442A1 - Support Roll For A Rolling Mill - Google Patents
Support Roll For A Rolling Mill Download PDFInfo
- Publication number
- US20090126442A1 US20090126442A1 US11/921,582 US92158206A US2009126442A1 US 20090126442 A1 US20090126442 A1 US 20090126442A1 US 92158206 A US92158206 A US 92158206A US 2009126442 A1 US2009126442 A1 US 2009126442A1
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- United States
- Prior art keywords
- shell
- roll
- accordance
- journal
- support roll
- 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.)
- Abandoned
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- B21B27/03—Sleeved rolls
- B21B27/032—Rolls for sheets or strips
-
- 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
-
- 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
-
- 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
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
-
- 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
- B21B27/03—Sleeved rolls
-
- 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
-
- 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
- Y10T29/49544—Roller making
- Y10T29/49547—Assembling preformed components
Definitions
- the invention concerns a support roll for a rolling mill, such as a plate rolling mill, sheet rolling mill or the like, which consists of a shell and a roll shaft/roll spindle, and a method for producing a support roll of this type.
- the support roll is cast by composite casting techniques and consists of hard, wear-resistant material in the barrel region and of high-grade tough material with high bending fatigue strength in the neck and core regions. This is followed by mechanical working.—multiple-component roll—
- the entire roll body must be scrapped when the useful barrel region (constructed to be wear-resistant) becomes worn.
- multipart support rolls are also known.
- EP 1 056 553 B1 describes a rolling mill with work rolls and multipart support rolls that consist of a main roll body with several roller bearings installed on it side by side in its longitudinal direction, whose outer rings support a rotatable shell that encompasses the roller bearings.
- the inner surface of the shell rests with full contact on the outer surfaces of the outer rings of the roller bearings.
- the outer surface forms the roll barrel of the support roll, and three roller bearings are provided on the length of the main roll body, of which the middle roller bearing is designed as a conical roller bearing.
- the two outer roller bearings are designed as cylindrical roller bearings, and an eccentric bushing that can be rotated by a motor about the longitudinal axis of the main roll body is installed between each of the two cylindrical roller bearings and the main roll body, such that a self-adjustable tilting segment that allows skewing of the cylindrical roller bearing is provided in the load region of the main roll body between the main roll body and each eccentric bushing.
- German Early Disclosure 1 602 121 describes a multipart support roll for four-high rolling stands for rolling out flat metal products, in which the rolling forces to be absorbed by the support roll are transmitted from the cylindrical surface of the support roll to the spindle or shaft in only two places within the width range of the roll barrel.
- EP 0 896 841 A2 discloses a rolling mill with work rolls and multipart support rolls that consist of a main roll body with several roller bearings installed on it side by side in its longitudinal direction, whose outer rings support a rotatable shell that encompasses the roller bearings.
- the outer surface forms the roll barrel of the support roll, where the main roll body can rotate about its longitudinal axis and is divided into cylindrical sections that have approximately the same width as the roller bearings.
- the parallel axes of these adjacent cylindrical sections are offset relative to each other.
- the inner surface of the shell rests with full contact on the outer surfaces of the outer rings of the roller bearings and in this way is provided with an eccentricity that results from the eccentricity of the sections of the main roll body, reduced by the opposing bending effect of the shell.
- DE 197 02 325 A1 discloses a method for producing vibration-damped rolls.
- this method to change the values of the natural frequencies of at least one roll, at least one cavity that is parallel to the axis is formed in at least one support roll and/or an associated work roll.
- a set of rolls of the invention which consists of at least a work roll and support roll, at least one roll is provided with at least one cavity that is parallel to the axis.
- EP 0 937 515 B1 discloses a roll that consists of a rotating roll jacket and means, which are installed inside the roll jacket, for controlling the flexural rigidity of the roll jacket.
- the control means consist of a sliding bearing in the form of a rotatable body, which can be rotatably adjusted and is shaped in such a way that its load-bearing surface corresponding to the loaded zone of the roll jacket is part of the cylindrical outer surface of a rotationally symmetric body, and the boundary of this cylindrical outer surface is formed in such a way that the width and/or position of the load-bearing surface varies along the circumference of the rotatable body.
- the rotatable body In the region of its load-bearing surface, the rotatable body has at least one recess. The course of the boundary of this recess and its inner contour can be shaped in any desired way.
- support rolls are constructed as shell rolls, i.e., an outer sleeve or the like rotates about an inner shaft, spindle or the like.
- Support rolls with a large total weight that are produced by these previously known methods have the same disadvantages with respect to shipping, etc., as a single-part support roll.
- the objective of the invention is to simplify production of the known support rolls, shorten the delivery time, increase the service life, and reduce the aforementioned disadvantages, such as high shipping costs.
- the solution to this problem is characterized by the fact that, in a support roll for a rolling mill, such as a plate rolling mill, sheet rolling mill or the like, which consists of a shell and a roll shaft/roll spindle, the roll shaft/roll spindle is constructed from multiple parts.
- one or more bores are provided in the half-journals.
- the half-journals run parallel to the axis and are, for example, symmetrically arranged. If only one bore is provided, the axis of the bore is identical with the longitudinal axis of the half-journal.
- both half-journals are formed with through bores, into which a tension bar/tie rod is inserted to pretension the two half-journals with respect to each other.
- one half-journal is provided with through bores, and the other half-journal is provided with threaded bores, into which threaded rods/pretensioning bolts are turned.
- the half-journals are cylindrically shaped in the region that is surrounded by the shell.
- this region is designed in the form of a conical frustum.
- a conical seat is provided, which has a small conical angle and a self-locking design.
- a bushing is provided between the two half-journals. This bushing makes it possible to produce support rolls of different lengths with the same half-journals. The different lengths of the shells are bridged by one or more adapted bushings.
- a bushing can be designed with the threaded bore or threaded bores.
- the half-journals are then designed only with through bores.
- the invention also concerns a method for producing a support roll that consists of a shell and a multipart roll shaft/roll spindle.
- the shell is internally heated and thus expands.
- the half-journals are then inserted into the shell and pushed up against the right and left end walls of the shell.
- the half-journals have, for example, at least one locating edge on their circumference.
- the support roll which consists of the shell, right half-journal, and left half-journal, is held together by a shrink fit after the shell has been cooled. A support roll of high flexural rigidity is obtained.
- the two half-journals and, if necessary, the pretensioning bolt or bolts are removed from the shell. Due to the construction of the support roll in accordance with the invention, the right half-journal, the left half-journal, and the pretensioning bolt or bolts can be reused.
- FIG. 1 shows a perspective sectional view of a multipart support roll.
- FIG. 2 shows a perspective sectional view of a support roll of the invention, in which the shell is designed with a journal.
- FIG. 3 shows a perspective sectional view of a support roll of the invention with barrel or shrink rings.
- FIG. 4 shows a perspective sectional view of a support roll with a cavity.
- FIG. 5 shows a perspective sectional view of a two-part embodiment.
- FIG. 6 shows a sectional front view of a variant of a support roll according to FIG. 4 .
- FIG. 1 shows a perspective sectional view of a support roll 1 .
- the support roll 1 consists of a shell 2 and a roll shaft/roll spindle 3 .
- the roll shaft/roll spindle 3 is formed by a left journal 4 and a right journal 5 .
- Holding fixtures for bearings are formed at the outer ends.
- the inside of the shell 2 is designed in the form of a conical frustum, starting at each of the end faces 6 , 7 .
- the journals 4 , 5 are provided with a stop edge 8 , 9 .
- the left journal 4 has a threaded bore 10
- the right journal 5 is provided with a through bore 11 , through which a pretensioning bolt (not shown) is passed.
- FIG. 2 Another embodiment is shown in FIG. 2 .
- the left journal 4 is designed in such a way that it is installed in the shell 2 over a great length.
- the shell 2 is formed at its right end, for example, with a journal 12 , which is cast on or forged on at one end.
- the left journal 4 and the shell 2 are joined by means of combined conical shrink fit 14 and/or cylindrical shrink fit 15 .
- This three-part support roll is held together by a pretensioning bolt 13 .
- the left journal 4 directly receives a journal bearing (not shown).
- barrel or shrink rings 16 are shrink-fitted over the entire length of the barrel, as shown in FIG. 3 .
- several equally wide or variably wide barrel or shrink rings 16 are shrink-fitted onto graduated cylindrical diameters of the shell 2 .
- An advantage of this is the possibility of shrink-fitting new barrel or shrink rings 16 when these have reached the end of their usable diameter after repeated regrinding. The shell 2 can be used again.
- the support roll 1 consists of the shell 2 and the journals 4 , 5 , which are inserted only a short distance into the shell 2 . This results in the formation of a cavity 17 in the shell 2 .
- the journals 4 , 5 are, for example, pressed in by means of an easy cylindrical or conical fit in the shell 2 .
- the journals 4 , 5 are bolted with the shell at both ends by a sufficient number of bolts 18 .
- the advantage of this embodiment is the possibility of reusing the left journal 4 and the right journal 5 when the outside diameter of the shell has been ground down to the point that it has reached the end of its predetermined usable diameter.
- the equipment for changing the support roll 1 can be designed with smaller dimensions, because the whole support roll 1 is lighter than a solid roll.
- a multipart roll shaft/roll spindle 3 in a support roll 1 is realized by forming the left journal 4 as a single part with the shell 2 .
- the right journal 5 has a stop face 19 to allow proper positioning of the two parts.
- the two parts are joined after the cylindrical shell has first been heated. After insertion of the journal 5 , followed by cooling, a strong joint is present in the form of a transverse press fit. Due to the action of friction, sufficient fixation of the axial position is guaranteed.
- the connection is additionally secured, as described above, by means of a pretensioning bolt or several pretensioning bolts. The use of a pretensioning bolt or bolts is helpful during the assembly of the support roll.
- FIG. 6 shows a possible variant of the embodiment of a support roll shown in FIG. 4 .
- the shell 2 consists of a cast hollow body or a hollow body that is forged over a mandrel.
- the ends of the shell are already formed as a single part with regions for holding bearings.
- the actual journals of the roll shaft/roll spindle 3 (not shown) are again secured by means of bolts and/or a joint seat.
- the advantage of this embodiment is that the weight of the support roll is reduced.
Abstract
Description
- The invention concerns a support roll for a rolling mill, such as a plate rolling mill, sheet rolling mill or the like, which consists of a shell and a roll shaft/roll spindle, and a method for producing a support roll of this type.
- Previously known support rolls for multiple-high rolling stands for hot rolling or cold rolling on a flat track are produced as a single part. To produce support rolls that weigh more than 120 t, which are used especially in plate rolling stands, two possible means of production are known:
- (a) The support roll is cast and then forged in an open-die forge and then worked.—single-component roll—
- (b) The support roll is cast by composite casting techniques and consists of hard, wear-resistant material in the barrel region and of high-grade tough material with high bending fatigue strength in the neck and core regions. This is followed by mechanical working.—multiple-component roll—
- There are only a few manufacturers of single-part support rolls that weigh more than 170 t, and this means long delivery times and high prices.
- Support rolls of this type have the further disadvantage of high shipping costs due to the large weights.
- Furthermore, the entire roll body must be scrapped when the useful barrel region (constructed to be wear-resistant) becomes worn.
- Besides the single-part support rolls, multipart support rolls are also known.
-
EP 1 056 553 B1 describes a rolling mill with work rolls and multipart support rolls that consist of a main roll body with several roller bearings installed on it side by side in its longitudinal direction, whose outer rings support a rotatable shell that encompasses the roller bearings. The inner surface of the shell rests with full contact on the outer surfaces of the outer rings of the roller bearings. The outer surface forms the roll barrel of the support roll, and three roller bearings are provided on the length of the main roll body, of which the middle roller bearing is designed as a conical roller bearing. The two outer roller bearings are designed as cylindrical roller bearings, and an eccentric bushing that can be rotated by a motor about the longitudinal axis of the main roll body is installed between each of the two cylindrical roller bearings and the main roll body, such that a self-adjustable tilting segment that allows skewing of the cylindrical roller bearing is provided in the load region of the main roll body between the main roll body and each eccentric bushing. - German
Early Disclosure 1 602 121 describes a multipart support roll for four-high rolling stands for rolling out flat metal products, in which the rolling forces to be absorbed by the support roll are transmitted from the cylindrical surface of the support roll to the spindle or shaft in only two places within the width range of the roll barrel. - EP 0 896 841 A2 discloses a rolling mill with work rolls and multipart support rolls that consist of a main roll body with several roller bearings installed on it side by side in its longitudinal direction, whose outer rings support a rotatable shell that encompasses the roller bearings. The outer surface forms the roll barrel of the support roll, where the main roll body can rotate about its longitudinal axis and is divided into cylindrical sections that have approximately the same width as the roller bearings. The parallel axes of these adjacent cylindrical sections are offset relative to each other. The inner surface of the shell rests with full contact on the outer surfaces of the outer rings of the roller bearings and in this way is provided with an eccentricity that results from the eccentricity of the sections of the main roll body, reduced by the opposing bending effect of the shell.
- An arrangement of this type is also described in
EP 1 058 616 B1. - DE 197 02 325 A1 discloses a method for producing vibration-damped rolls. In this method, to change the values of the natural frequencies of at least one roll, at least one cavity that is parallel to the axis is formed in at least one support roll and/or an associated work roll. In a set of rolls of the invention, which consists of at least a work roll and support roll, at least one roll is provided with at least one cavity that is parallel to the axis.
- EP 0 937 515 B1 discloses a roll that consists of a rotating roll jacket and means, which are installed inside the roll jacket, for controlling the flexural rigidity of the roll jacket. The control means consist of a sliding bearing in the form of a rotatable body, which can be rotatably adjusted and is shaped in such a way that its load-bearing surface corresponding to the loaded zone of the roll jacket is part of the cylindrical outer surface of a rotationally symmetric body, and the boundary of this cylindrical outer surface is formed in such a way that the width and/or position of the load-bearing surface varies along the circumference of the rotatable body. In the region of its load-bearing surface, the rotatable body has at least one recess. The course of the boundary of this recess and its inner contour can be shaped in any desired way.
- These previously known multipart embodiments or designs of support rolls are constructed as shell rolls, i.e., an outer sleeve or the like rotates about an inner shaft, spindle or the like.
- Support rolls with a large total weight that are produced by these previously known methods have the same disadvantages with respect to shipping, etc., as a single-part support roll.
- Therefore, the objective of the invention is to simplify production of the known support rolls, shorten the delivery time, increase the service life, and reduce the aforementioned disadvantages, such as high shipping costs.
- In accordance with the invention, the solution to this problem is characterized by the fact that, in a support roll for a rolling mill, such as a plate rolling mill, sheet rolling mill or the like, which consists of a shell and a roll shaft/roll spindle, the roll shaft/roll spindle is constructed from multiple parts.
- Additional embodiments of the support roll are revealed in the pertinent dependent claims.
- In a further development of the invention, one or more bores are provided in the half-journals. The half-journals run parallel to the axis and are, for example, symmetrically arranged. If only one bore is provided, the axis of the bore is identical with the longitudinal axis of the half-journal. In a first embodiment, both half-journals are formed with through bores, into which a tension bar/tie rod is inserted to pretension the two half-journals with respect to each other.
- In another embodiment, one half-journal is provided with through bores, and the other half-journal is provided with threaded bores, into which threaded rods/pretensioning bolts are turned.
- In a first embodiment, the half-journals are cylindrically shaped in the region that is surrounded by the shell. In another embodiment, this region is designed in the form of a conical frustum. In this regard, for example, a conical seat is provided, which has a small conical angle and a self-locking design. In another embodiment, a bushing is provided between the two half-journals. This bushing makes it possible to produce support rolls of different lengths with the same half-journals. The different lengths of the shells are bridged by one or more adapted bushings.
- For further simplification, a bushing can be designed with the threaded bore or threaded bores. The half-journals are then designed only with through bores.
- The invention also concerns a method for producing a support roll that consists of a shell and a multipart roll shaft/roll spindle.
- In accordance with the production method of the invention, the shell is internally heated and thus expands. The half-journals are then inserted into the shell and pushed up against the right and left end walls of the shell. To achieve exact positioning, the half-journals have, for example, at least one locating edge on their circumference. The support roll, which consists of the shell, right half-journal, and left half-journal, is held together by a shrink fit after the shell has been cooled. A support roll of high flexural rigidity is obtained.
- Additional embodiments of the method are revealed in the pertinent dependent claims.
- When the shell has reached an established wear limit, the two half-journals and, if necessary, the pretensioning bolt or bolts are removed from the shell. Due to the construction of the support roll in accordance with the invention, the right half-journal, the left half-journal, and the pretensioning bolt or bolts can be reused.
- Due to the embodiments of the support roll in accordance with the invention with a shell, right half-journal, left half-journal, and pretensioning bolt or bolts, etc., there is the further advantage that these individual parts can be shipped separately to the installation site, a rolling mill or the like. The support roll is then put together/assembled on site.
- Specific embodiments of the invention will now be explained in greater detail with reference to the highly schematic drawings.
-
FIG. 1 shows a perspective sectional view of a multipart support roll. -
FIG. 2 shows a perspective sectional view of a support roll of the invention, in which the shell is designed with a journal. -
FIG. 3 shows a perspective sectional view of a support roll of the invention with barrel or shrink rings. -
FIG. 4 shows a perspective sectional view of a support roll with a cavity. -
FIG. 5 shows a perspective sectional view of a two-part embodiment. -
FIG. 6 shows a sectional front view of a variant of a support roll according toFIG. 4 . -
FIG. 1 shows a perspective sectional view of asupport roll 1. Thesupport roll 1 consists of ashell 2 and a roll shaft/roll spindle 3. In accordance with the invention, the roll shaft/roll spindle 3 is formed by aleft journal 4 and aright journal 5. Holding fixtures for bearings are formed at the outer ends. - The inside of the
shell 2 is designed in the form of a conical frustum, starting at each of the end faces 6, 7. To achieve better positioning of thejournals shell 2, thejournals stop edge 8, 9. - In the illustrated embodiment, the
left journal 4 has a threadedbore 10, while theright journal 5 is provided with a throughbore 11, through which a pretensioning bolt (not shown) is passed. - Another embodiment is shown in
FIG. 2 . Theleft journal 4 is designed in such a way that it is installed in theshell 2 over a great length. Theshell 2 is formed at its right end, for example, with ajournal 12, which is cast on or forged on at one end. Theleft journal 4 and theshell 2 are joined by means of combined conical shrink fit 14 and/orcylindrical shrink fit 15. This three-part support roll is held together by apretensioning bolt 13. Theleft journal 4 directly receives a journal bearing (not shown). - The advantage of this design is that due to the long joint of the parts with each other (left
journal 4 in the shell 2), the deflection curve bending lines of the two parts are compensated, and thus the stresses and deformations are within permissible limits. - To avoid having to make a complete exchange of a damaged or
worn shell 2, barrel or shrinkrings 16 are shrink-fitted over the entire length of the barrel, as shown inFIG. 3 . In this regard, several equally wide or variably wide barrel or shrinkrings 16 are shrink-fitted onto graduated cylindrical diameters of theshell 2. An advantage of this is the possibility of shrink-fitting new barrel or shrinkrings 16 when these have reached the end of their usable diameter after repeated regrinding. Theshell 2 can be used again. - In
FIG. 4 , thesupport roll 1 consists of theshell 2 and thejournals shell 2. This results in the formation of acavity 17 in theshell 2. Thejournals shell 2. To secure the connection, thejournals bolts 18. The advantage of this embodiment is the possibility of reusing theleft journal 4 and theright journal 5 when the outside diameter of the shell has been ground down to the point that it has reached the end of its predetermined usable diameter. The equipment for changing thesupport roll 1 can be designed with smaller dimensions, because thewhole support roll 1 is lighter than a solid roll. - As illustrated in
FIG. 5 , a multipart roll shaft/roll spindle 3 in asupport roll 1 is realized by forming theleft journal 4 as a single part with theshell 2. Theright journal 5 has astop face 19 to allow proper positioning of the two parts. The two parts are joined after the cylindrical shell has first been heated. After insertion of thejournal 5, followed by cooling, a strong joint is present in the form of a transverse press fit. Due to the action of friction, sufficient fixation of the axial position is guaranteed. The connection is additionally secured, as described above, by means of a pretensioning bolt or several pretensioning bolts. The use of a pretensioning bolt or bolts is helpful during the assembly of the support roll. -
FIG. 6 shows a possible variant of the embodiment of a support roll shown inFIG. 4 . Theshell 2 consists of a cast hollow body or a hollow body that is forged over a mandrel. The ends of the shell are already formed as a single part with regions for holding bearings. The actual journals of the roll shaft/roll spindle 3 (not shown) are again secured by means of bolts and/or a joint seat. The advantage of this embodiment is that the weight of the support roll is reduced. -
- 1 support roll
- 2 shell
- 3 roll shaft/roll spindle
- 4 left half-journal
- 5 right half-journal
- 6 end face
- 7 end face
- 8 stop edge
- 9 stop edge
- 10 threaded bore
- 11 through bore
- 12 journal
- 13 pretensioning bolt
- 14 conical shrink fit
- 15 cylindrical shrink fit
- 16 barrel or shrink rings
- 17 cavity
- 18 bolts
- 19 stop face
Claims (16)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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DE102005032126 | 2005-07-07 | ||
DE102005032126.7 | 2005-07-07 | ||
DE102006002773.6 | 2006-01-20 | ||
DE102006002773A DE102006002773A1 (en) | 2005-07-07 | 2006-01-20 | Back-up roll for a rolling mill |
PCT/EP2006/006557 WO2007006467A1 (en) | 2005-07-07 | 2006-07-05 | Support roll for a rolling mill |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/006557 A-371-Of-International WO2007006467A1 (en) | 2005-07-07 | 2006-07-05 | Support roll for a rolling mill |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/086,700 Division US8789401B2 (en) | 2005-07-07 | 2011-04-14 | Method for producing a support roll for a rolling mill |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090126442A1 true US20090126442A1 (en) | 2009-05-21 |
Family
ID=37027839
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/921,582 Abandoned US20090126442A1 (en) | 2005-07-07 | 2006-07-05 | Support Roll For A Rolling Mill |
US13/086,700 Active US8789401B2 (en) | 2005-07-07 | 2011-04-14 | Method for producing a support roll for a rolling mill |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/086,700 Active US8789401B2 (en) | 2005-07-07 | 2011-04-14 | Method for producing a support roll for a rolling mill |
Country Status (20)
Country | Link |
---|---|
US (2) | US20090126442A1 (en) |
EP (1) | EP1838469B1 (en) |
JP (1) | JP4923047B2 (en) |
KR (1) | KR100951561B1 (en) |
AR (1) | AR054546A1 (en) |
AT (1) | ATE433351T1 (en) |
AU (1) | AU2006268933B2 (en) |
BR (1) | BRPI0608811A2 (en) |
CA (1) | CA2608544C (en) |
DE (2) | DE102006002773A1 (en) |
DK (1) | DK1838469T3 (en) |
EA (1) | EA010897B1 (en) |
EG (1) | EG25019A (en) |
ES (1) | ES2325128T3 (en) |
MX (1) | MX2007012583A (en) |
MY (1) | MY147103A (en) |
PL (1) | PL1838469T3 (en) |
RS (1) | RS51361B (en) |
TW (1) | TWI354588B (en) |
WO (1) | WO2007006467A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110171309A1 (en) * | 2008-04-10 | 2011-07-14 | Board Of Regents, The University Of Texas System | Compositions and Methods for Composite Nanoparticle Hydrogels |
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DE102008027494A1 (en) * | 2007-06-14 | 2008-12-18 | Sms Demag Ag | Multi-part roller |
DE102010047471A1 (en) * | 2010-10-06 | 2012-04-12 | Sms Siemag Ag | Method for processing a bearing arrangement and bearing arrangement |
JP6312491B2 (en) * | 2014-03-27 | 2018-04-18 | Jxtgエネルギー株式会社 | Web manufacturing roll |
KR102042838B1 (en) * | 2017-09-18 | 2019-11-08 | 주식회사 엔티아이 | Coupling Structure of Rolled Roll Shaft and Roll Sleeve |
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- 2006-07-05 PL PL06776129T patent/PL1838469T3/en unknown
- 2006-07-05 MX MX2007012583A patent/MX2007012583A/en active IP Right Grant
- 2006-07-05 EP EP06776129A patent/EP1838469B1/en not_active Not-in-force
- 2006-07-05 RS RSP-2007/0469A patent/RS51361B/en unknown
- 2006-07-05 CA CA2608544A patent/CA2608544C/en not_active Expired - Fee Related
- 2006-07-05 AU AU2006268933A patent/AU2006268933B2/en not_active Ceased
- 2006-07-05 ES ES06776129T patent/ES2325128T3/en active Active
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- 2006-07-05 US US11/921,582 patent/US20090126442A1/en not_active Abandoned
- 2006-07-05 KR KR1020077021140A patent/KR100951561B1/en not_active IP Right Cessation
- 2006-07-05 DE DE502006003934T patent/DE502006003934D1/en active Active
- 2006-07-05 DK DK06776129T patent/DK1838469T3/en active
- 2006-07-05 WO PCT/EP2006/006557 patent/WO2007006467A1/en active Application Filing
- 2006-07-07 AR ARP060102950A patent/AR054546A1/en active IP Right Grant
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Also Published As
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BRPI0608811A2 (en) | 2010-01-26 |
AU2006268933A1 (en) | 2007-01-18 |
CA2608544A1 (en) | 2007-01-18 |
ATE433351T1 (en) | 2009-06-15 |
US20110192029A1 (en) | 2011-08-11 |
EA200702011A1 (en) | 2008-02-28 |
TWI354588B (en) | 2011-12-21 |
PL1838469T3 (en) | 2009-11-30 |
RS20070469A (en) | 2009-03-25 |
DE502006003934D1 (en) | 2009-07-23 |
WO2007006467A1 (en) | 2007-01-18 |
EP1838469B1 (en) | 2009-06-10 |
EG25019A (en) | 2011-06-12 |
CA2608544C (en) | 2012-05-01 |
JP2008544857A (en) | 2008-12-11 |
KR20070110879A (en) | 2007-11-20 |
JP4923047B2 (en) | 2012-04-25 |
EP1838469A1 (en) | 2007-10-03 |
DK1838469T3 (en) | 2009-09-21 |
EA010897B1 (en) | 2008-12-30 |
RS51361B (en) | 2011-02-28 |
MY147103A (en) | 2012-10-31 |
DE102006002773A1 (en) | 2007-01-18 |
US8789401B2 (en) | 2014-07-29 |
AU2006268933B2 (en) | 2009-07-23 |
AR054546A1 (en) | 2007-06-27 |
MX2007012583A (en) | 2007-12-10 |
TW200714382A (en) | 2007-04-16 |
KR100951561B1 (en) | 2010-04-09 |
ES2325128T3 (en) | 2009-08-26 |
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