CA2300028C - Device for controllably influencing the friction forces between the guide surfaces and contact surfaces of bearing chocks of the rolls guided in the housing windows of roll stands - Google Patents
Device for controllably influencing the friction forces between the guide surfaces and contact surfaces of bearing chocks of the rolls guided in the housing windows of roll stands Download PDFInfo
- Publication number
- CA2300028C CA2300028C CA002300028A CA2300028A CA2300028C CA 2300028 C CA2300028 C CA 2300028C CA 002300028 A CA002300028 A CA 002300028A CA 2300028 A CA2300028 A CA 2300028A CA 2300028 C CA2300028 C CA 2300028C
- Authority
- CA
- Canada
- Prior art keywords
- contact surfaces
- housing
- friction forces
- guide
- roll stands
- 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.)
- Expired - Fee Related
Links
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
-
- 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
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B2031/206—Horizontal offset of work rolls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Metal Rolling (AREA)
- Treatment Of Fiber Materials (AREA)
- Machine Tool Units (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
A device for controllably influencing the friction forces between the guide surfaces and the contact surfaces of bearing chocks of the rolls guided in the housing windows of roll stands includes planar support plates for supporting the guide surfaces, wherein the support plates are guided so as to be slidable perpendicularly relative to the guide or contact surfaces of the housing window and the bearing chock, and wherein a device is provided for applying pressure to the rear side of each support.
Description
BETWEEN THE GUIDE SURFACES AND CONTACT SURFACES OF BEARING
CHOCKS OF THE ROLLS GUIDED IN THE HOUSING WINDOWS OF ROLL STANDS
1. FIELD OF THE J[NV N ON
The present invention relates to a device for controllably influencing the friction forces between the guide surfaces and the contact surfaces of bearing chocks of the rolls guided in the housing windows of roll stands.
CHOCKS OF THE ROLLS GUIDED IN THE HOUSING WINDOWS OF ROLL STANDS
1. FIELD OF THE J[NV N ON
The present invention relates to a device for controllably influencing the friction forces between the guide surfaces and the contact surfaces of bearing chocks of the rolls guided in the housing windows of roll stands.
2. DESCRIPTION OF THE RI_LATED ART
Devices of this type have the purpose of counteracting vibrations which occur frequently during rolling of sheet metal strips in cluster roll stands, particularly at high rolling speeds resulting in the danger of the occurrence of vibration problems. These vibrations may lead to surface damage, such as chatter marks on the strips and may also negatively affect the service life of the rolls. If it is necessary to roll at lower rolling speeds in order to avoid these vibrations, the productivity of the rolling train decreases and the operational costs increase.
It has already been propcised in the past to counteract these vibration problems by producing a friction force between the guide and contact surfaces of housing windows and bearing chocks by using hollow bodies which were expandable by means of hydraulic pressure. These expandable hollow bodies are mounted in the housing windows of the roll stands and act on the contact surfaces of the bearing chocks. While these hollow bodies result in an increase of the friction forces between the guide and contact surfaces of housing windows and bearing chocks, they have the disadvantage that they act only spherically on the contact surfaces of the bearing chocks and do not act uniformly over the entire surfaces thereof. A change of the contact pressures cannot be carried out or is very difficult to carry out. A defined contact pressure and friction force cannot be achieved or is very difficult to achieve.
SUNIIhIARY OF THE INI/ENTION
Therefore, it is the primary object of the present invention to improve the roll stand arrangement of the devices of the type described above in such a way that a variable force application over the entire contact surfaces of the bearing chocks is made possible in order to produce defined friction forces, independently of the conditions at any given time with respect to rolling technology.
In accordance witti the present invention, this object is met by planar support plates for suppoirting the guide surfaces, wherein the support plates are guided so as to be slidable perpendicularly relative to the guide or contact surfaces of the housing window and the bearing chock, and wherein means are provided for applying pressure to the rear side of each support plate.
In accordance with another feature of the present invention, a piston/cylinder unit for applying pressure on the rear side of the support plate is rnounted in the roll housing.
Devices of this type have the purpose of counteracting vibrations which occur frequently during rolling of sheet metal strips in cluster roll stands, particularly at high rolling speeds resulting in the danger of the occurrence of vibration problems. These vibrations may lead to surface damage, such as chatter marks on the strips and may also negatively affect the service life of the rolls. If it is necessary to roll at lower rolling speeds in order to avoid these vibrations, the productivity of the rolling train decreases and the operational costs increase.
It has already been propcised in the past to counteract these vibration problems by producing a friction force between the guide and contact surfaces of housing windows and bearing chocks by using hollow bodies which were expandable by means of hydraulic pressure. These expandable hollow bodies are mounted in the housing windows of the roll stands and act on the contact surfaces of the bearing chocks. While these hollow bodies result in an increase of the friction forces between the guide and contact surfaces of housing windows and bearing chocks, they have the disadvantage that they act only spherically on the contact surfaces of the bearing chocks and do not act uniformly over the entire surfaces thereof. A change of the contact pressures cannot be carried out or is very difficult to carry out. A defined contact pressure and friction force cannot be achieved or is very difficult to achieve.
SUNIIhIARY OF THE INI/ENTION
Therefore, it is the primary object of the present invention to improve the roll stand arrangement of the devices of the type described above in such a way that a variable force application over the entire contact surfaces of the bearing chocks is made possible in order to produce defined friction forces, independently of the conditions at any given time with respect to rolling technology.
In accordance witti the present invention, this object is met by planar support plates for suppoirting the guide surfaces, wherein the support plates are guided so as to be slidable perpendicularly relative to the guide or contact surfaces of the housing window and the bearing chock, and wherein means are provided for applying pressure to the rear side of each support plate.
In accordance with another feature of the present invention, a piston/cylinder unit for applying pressure on the rear side of the support plate is rnounted in the roll housing.
Finally, exchangeable wear plates provided with the contact surface may be placed on the support plates.
The device according to the present invention makes it possible to produce defined contact forces and friction forces at the bearing chocks in the housing window of the roll stand while bridging the operational play, i.e., to produce in a targeted manner defined contact forces and friction forces independently of the conditions with respect to rolling technology.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of the disclosure.
For a better understanding of the invention, its operating advantages, specific objects attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
In one aspect, the present invention resides in a device for regulable influencing of the friction forces between the guide surfaces and contact surfaces of bearing chocks, which are guided in the housing windows of roll stands, of the rolls, wherein one of the two contact surfaces of the bearing chock bears against a guide surface of the housing window and the other contact surface is formed by a flat plate which is inserted in the wall of the housing window to be displaceable and which is loadable with pressure at the rear side in pre-calculated and adjustable manner.
; .. r BRIEF DESCRIPTION OF THE DRAWING
In the drawing:
Figure 1 is a sectional view of the device according to the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
The drawing is a schematic partial view of a housing window SF formed in the housing posts SH1, SH2 of a roll stand, otherwise not illustrated in detail, as seen in the axial direction of the rolls. The bearing chock LE of the roll W is guided on the housing window SF between the guide surfaces FF1 and FF2 of the window so as to be movable up and down in the direction of the double arrow DP. A recess AS
is provided in the surface of the housing window SF of the housing post SH1 on the left as seen in the drawing. A planar plate PL is placed in the recess AS so as to be slidable perpendicularly of the guide surface FF1. The plate PL has on its side facing and bearing chock and the contact surface AF1 thereof the corresponding guide surface FF1 and the piston of a piston/cylinder unit KZA mounted in the housing post SH acts on the rear side of the plate PL. A wear plate, not shown in the drawing, can be placed on the surface of the plate PL facing the contact surface AF1 of the bearing chock LE, wherein one side of the wear plate then forms the guide surface FF1.
Using hydraulic control units, not shown, the piston/cylinder unit KZA can move the plate PL in the recess AS over the adjustment distance AW against the bearing chock LE.
The device according to the present invention makes it possible to produce defined contact forces and friction forces at the bearing chocks in the housing window of the roll stand while bridging the operational play, i.e., to produce in a targeted manner defined contact forces and friction forces independently of the conditions with respect to rolling technology.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of the disclosure.
For a better understanding of the invention, its operating advantages, specific objects attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
In one aspect, the present invention resides in a device for regulable influencing of the friction forces between the guide surfaces and contact surfaces of bearing chocks, which are guided in the housing windows of roll stands, of the rolls, wherein one of the two contact surfaces of the bearing chock bears against a guide surface of the housing window and the other contact surface is formed by a flat plate which is inserted in the wall of the housing window to be displaceable and which is loadable with pressure at the rear side in pre-calculated and adjustable manner.
; .. r BRIEF DESCRIPTION OF THE DRAWING
In the drawing:
Figure 1 is a sectional view of the device according to the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
The drawing is a schematic partial view of a housing window SF formed in the housing posts SH1, SH2 of a roll stand, otherwise not illustrated in detail, as seen in the axial direction of the rolls. The bearing chock LE of the roll W is guided on the housing window SF between the guide surfaces FF1 and FF2 of the window so as to be movable up and down in the direction of the double arrow DP. A recess AS
is provided in the surface of the housing window SF of the housing post SH1 on the left as seen in the drawing. A planar plate PL is placed in the recess AS so as to be slidable perpendicularly of the guide surface FF1. The plate PL has on its side facing and bearing chock and the contact surface AF1 thereof the corresponding guide surface FF1 and the piston of a piston/cylinder unit KZA mounted in the housing post SH acts on the rear side of the plate PL. A wear plate, not shown in the drawing, can be placed on the surface of the plate PL facing the contact surface AF1 of the bearing chock LE, wherein one side of the wear plate then forms the guide surface FF1.
Using hydraulic control units, not shown, the piston/cylinder unit KZA can move the plate PL in the recess AS over the adjustment distance AW against the bearing chock LE.
5 This produces the previously calculated contact forces FP and, resulting from these contact forces FP, the friction forces FR between the guide surfaces FF1 and of the housing window SF and the contact surfaces AF1 and AF2 of the bearing chock LE.
The plate PL can be used on the drive side or on the operator side in back-up rolls, intermediate rolls and also the work rolls of a roll stand.
The invention is not limited by the embodiments described above which are presented as examples only but can be modified in various ways within the scope of protection defined by the appended patent claims.
The plate PL can be used on the drive side or on the operator side in back-up rolls, intermediate rolls and also the work rolls of a roll stand.
The invention is not limited by the embodiments described above which are presented as examples only but can be modified in various ways within the scope of protection defined by the appended patent claims.
Claims (2)
1. Device for regulable influencing of the friction forces between the guide surfaces and contact surfaces of bearing chocks, which are guided in the housing windows of roll stands, of the rolls, wherein one of the two contact surfaces (AF2) of the bearing chock (LE) bears against a guide surface (FF2) of the housing window (SF) and the other contact surface (AF1) is formed by a flat plate (PL) which is inserted in the wall of the housing window (SF) to be displaceable and which is loadable with pressure at the rear side in pre-calculated and adjustable manner.
2. Device according to claim 1, whereby wear plates are exchangeably placeable on the flat plates (PL).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19911638.5 | 1999-03-16 | ||
| DE19911638A DE19911638A1 (en) | 1999-03-16 | 1999-03-16 | Device for controllably influencing the frictional forces between the guide surfaces and contact surfaces of bearing chocks of the rollers guided in the stator windows of roll stands |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2300028A1 CA2300028A1 (en) | 2000-09-16 |
| CA2300028C true CA2300028C (en) | 2009-12-22 |
Family
ID=7901132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002300028A Expired - Fee Related CA2300028C (en) | 1999-03-16 | 2000-03-06 | Device for controllably influencing the friction forces between the guide surfaces and contact surfaces of bearing chocks of the rolls guided in the housing windows of roll stands |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1036605B1 (en) |
| JP (1) | JP2000263107A (en) |
| AT (1) | ATE238850T1 (en) |
| BR (1) | BR0001315A (en) |
| CA (1) | CA2300028C (en) |
| DE (2) | DE19911638A1 (en) |
| ES (1) | ES2198235T3 (en) |
| RU (1) | RU2237532C2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10062489A1 (en) * | 2000-12-14 | 2002-06-20 | Sms Demag Ag | Roll stand for hot or cold rolling of metal strip material |
| JP3526554B2 (en) * | 2001-02-13 | 2004-05-17 | 株式会社日立製作所 | Tandem rolling equipment and rolling method |
| DE10261077B4 (en) * | 2002-12-20 | 2014-10-16 | Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH | Flat guide module, in particular for a rolling stand, and rolling method for a rolling stand with flat guide module |
| KR100813480B1 (en) * | 2005-06-08 | 2008-03-13 | 에스엠에스 데마그 악티엔게젤샤프트 | Pressing device for pressing the guide surfaces of the bearing mounting pieces guided in the housing area of the roll stand |
| DE102005042168A1 (en) * | 2005-06-08 | 2006-12-14 | Sms Demag Ag | Device for acting on the guide surfaces of guided in the stator windows of rolling stands bearing chocks |
| CN102847717A (en) * | 2012-09-08 | 2013-01-02 | 中色科技股份有限公司 | Device and method for improving steady operation of roll system of rolling mill |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1527618C3 (en) * | 1966-12-21 | 1973-11-29 | Blaw-Knox Co., Pittsburgh, Pa. (V.St.A.) | Roll stand |
| JPS542246A (en) * | 1977-06-08 | 1979-01-09 | Hitachi Ltd | Rolling mill |
| GB2141959A (en) * | 1983-06-23 | 1985-01-09 | Davy Mckee | Rolling mill |
| DE3807654A1 (en) * | 1988-03-09 | 1989-09-28 | Kloeckner Stahl Gmbh | Method and device for changing and/or (re-)starting up rolls, rollers, shears or the like mounted in chocks |
| JPH03285708A (en) * | 1990-04-02 | 1991-12-16 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling equipment |
| JP3060691B2 (en) * | 1991-03-29 | 2000-07-10 | 株式会社日立製作所 | Rolling mill, hot rolling equipment, rolling method, and remodeling method of rolling mill |
-
1999
- 1999-03-16 DE DE19911638A patent/DE19911638A1/en not_active Withdrawn
-
2000
- 2000-02-16 DE DE50001930T patent/DE50001930D1/en not_active Expired - Lifetime
- 2000-02-16 ES ES00103117T patent/ES2198235T3/en not_active Expired - Lifetime
- 2000-02-16 EP EP00103117A patent/EP1036605B1/en not_active Expired - Lifetime
- 2000-02-16 AT AT00103117T patent/ATE238850T1/en active
- 2000-03-06 CA CA002300028A patent/CA2300028C/en not_active Expired - Fee Related
- 2000-03-13 JP JP2000068348A patent/JP2000263107A/en active Pending
- 2000-03-15 BR BR0001315-3A patent/BR0001315A/en not_active IP Right Cessation
- 2000-03-15 RU RU2000106642A patent/RU2237532C2/en active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000263107A (en) | 2000-09-26 |
| ES2198235T3 (en) | 2004-02-01 |
| EP1036605B1 (en) | 2003-05-02 |
| DE19911638A1 (en) | 2000-09-21 |
| CA2300028A1 (en) | 2000-09-16 |
| ATE238850T1 (en) | 2003-05-15 |
| DE50001930D1 (en) | 2003-06-05 |
| EP1036605A1 (en) | 2000-09-20 |
| BR0001315A (en) | 2000-10-17 |
| RU2237532C2 (en) | 2004-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160307 |