US3651679A - Rolling mill - Google Patents
Rolling mill Download PDFInfo
- Publication number
- US3651679A US3651679A US883522A US3651679DA US3651679A US 3651679 A US3651679 A US 3651679A US 883522 A US883522 A US 883522A US 3651679D A US3651679D A US 3651679DA US 3651679 A US3651679 A US 3651679A
- Authority
- US
- United States
- Prior art keywords
- chocks
- work roll
- roll
- connecting bars
- work
- 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 - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
- B21B31/106—Vertical displacement of rolls or roll chocks during horizontal roll changing
Definitions
- the work r0 Chocks and the backup roll chocks are constructed with a minimum of irregu- [52] US. Cl ..72/238 1 and difficult to machine surfaces
- the rails and [51] Int. Cl ....B21b 31/08 wheels used to quickly remove and replace the work rolls are [58] connected in a very simple and economical manner to the Field of Search ..72/237, 238, 239
- PATENTEDMARZB I972 sum 2 OF 2 I INVENTOR. CHARLES S. SHUMA/(ER BY 147 7' ORA E VS.
- the chocks of the backup rolls in many occasions they were provided with long legs to receive one or both of the chocks of the work rolls in addition to upwardly extending projections or legs to which the balance mechanism was attached.
- the chocks of the work rolls they, too, in many cases were formed to have an interrelated or interfitted relationship so that one of the work roll chocks was provided with extending legs to receive the other.
- the downwardly extending legs formed on the backup and work roll chocks necessitated the drastic relieving of the top of the lower backup roll chock to provide a clearance for the legs of the chocks to accommodate the chocks when they are moved vertically as a result of a change in roll diameter, particularly of the work rolls.
- an object of the present invention to provide a mill construction which will overcome each and every one of the aforesaid objects ina manner which will greatly simplify the roll changing and reduce the initial cost of the mill.
- FIG. 1 is a plan view, partly in section, of a rolling mill incorporating the present invention
- FIG. 2 is a sectional view taken on lines llIl of FIG. 1 showing the parts in the positionthey assume during rolling, the right-hand portion indicating minimum diameter rolls, whereas the left-hand portion indicates the relation of the parts when employing maximum diameter rolls; and
- FIG. 3 is a sectional view similar to FIG. 2 showing the rolls and other parts in the roll changing position.
- FIG. 1 there are illustrated two pairs of housings l0 and 11 having windows 12 adapted to receive the rolls of a mill. Since the components that go into each housing are identical, reference will be made to only one of the housings and its components. As best shown in FIGS. 2 and 3, in the center of the windows 12 the housings are indented towards the center of the mill on both sides forming portions 13 and 14, the length of which portions substantially equals that of the combined height of the work roll chocks l5 and 16. Portions l3 and 14, in the usual manner, are provided with liners 17 which engage liners 18 formed on the work roll chocks 15 and 16.
- the chocks 15 and 16 rotatably mount work rolls 19 and 21, respectively, and the lower chock 16 includes two balance cylinder assemblies, one of which is shown at 22, it being appreciated that a similar cylinder is mounted on the right-hand side of the chock 16, which, although not shown in FIGS. 2 and 3, is shown in FIG. 1.
- the upper and lower portions of the windows 12 receive in a usual manner the backup chocks 23 and 24 which rotatably support the backup rolls 25 and 26 making the mill a 4-high mill in which the work rolls are supported by the backup rolls in the customary manner.
- the upper and lower portions of the windows 12 have liners 27 and 28 which engage liners 29 and 31 secured to the backup chocks 23 and 24.
- the lower chock 24 is mounted on a filler block 25 which, in turn, is carried by the bottom of the housing.
- the upper backup roll chock is engaged by a bearing block 33 which, in turn, engages the bottom of the mill screw 34 rotatably mounted in the top of the housing.
- the upper backup chock 23 is connected to the legs 35 of a backup roll balance cylinder assembly, the legs being urged upwardly to effect the balancing of a piston cylinder assembly
- its lower end is provided with projections 37 and 38 which are engaged separately by vertically extending bars 39 and 41.
- the bars have projections 42 and 43 which engage the projections 37 and 38 during the roll changing operation for the work rolls.
- the bars 39 and 41 are provided with stops 44 and 45 which prevent the bars from moving below a predetermined point, at which point the stops 44 and 45 engage the portions 13 and 14 of the housing.
- the bars 39 and 41 project through the portions 13 and 14 and, at their lower ends, are provided with rails 46 and 47 which, as shown in FIG. 1, extend through both housings 10 and 11 and, at the operating side of the mill, extend past the housing where they cooperate with a roll changing apparatus, not shown, which could take the form of a turntable shown in the aforesaid United States and British patents.
- the lower backup chock 24 is relieved in the vicinity of the rails 46 and 47 to accommodate the lowermost position of the rails, which is shown at the right of FIG. 2.
- This position is the position the parts assume when minimum diameter rolls are being employed and, it will be noted in again referring to the right-hand side of FIG. 2, that the bar 41 is out of engagement with the upper backup chock 23 and is carried by the stop 45, which is in engagement with the portion 14 of the housing 11.
- the chocks 15 and 16 of the work rolls are connected to each other by means of separate bars 49 and 51, the bars being secured to the upper work roll chock 15 and extending through the lower work roll chock 16, although the lower work roll chock is allowed to move relative to the bars.
- wheels 50 are rotatably secured.
- the bars 49 and 51 are provided with openings 52 and the lower chock 16 is provided with pins 53 which serve as stops when the lower work roll chock, by gravity, is allowed to fall away from the upper chock which is still being held by the bars 49 and 51.
- connection FIGS. 2 and 3 allow a ready comparison of the operating position of the elements as distinguished from the roll changing position which is shown in FIG. 3.
- the bars 39 and 41 are either supported by the backup chock 23, as shown at the left-hand side of FIG. 2, or by the stops 44 and 45, as shown at the right-hand side of FIG. 2,
- the rails 46 and 47 are held out of engagement with the wheels 50 supported by the work roll chocks l5 and 16 so that during the operation of the mill the wheels are never in engagement with the rails.
- the balance cylinder assembly 22 urges the work roll chocks apart in which the top work roll chock 15 is allowed to move by reason of the openings 52 formed in the bars 49 and 51. This movement is defined by the maximum roll gap that may be set by the screw 34.
- the balance cylinder 36 is in operation to raise the backup chock 23 against the screw.
- the screw 34 When it is desired to change the work rolls, the screw 34 is raised and with the pressure in the cylinder 36 the upper backup roll 25 is also raised so as to positively engage the projections 42 and 43 and lift the bars 39 and 41 so that the rails 46 and 47 will come into a supporting relationship with the wheels 50 of the work roll chocks 15 and 16, this relationship being shown in FIG. 3.
- the bars 49 and 51 are caused to rise which affects displacement of the top work roll chock 15 away from the lower work roll chock 16 an amount determined by the stops 53 engaging the bottom of the openings 52 of the bars 49 and 51.
- the work rolls are separated and may be rotated relative to each other, particularly relative to the spindle coupling so as to align them with the couplings when the rolls are brought back into the mill.
- a rolling mill comprising a pair of spaced-apart housings, vertical windows formed in said housings for receiving upper and lower work roll assemblies and upper and lower backup roll assemblies,
- connecting bars for each upper backup bearing chock having one of their ends supported by said bearing chocks in a manner that the connecting bars are displaceable on vertical movement of said upper backup bearing chocks
- each housing includes a pair of opposed projections extending into said windows and providing support surfaces for the bearing chocks of said work rolls
- the construction being such that the openings provide for relative movement between work roll bearing chocks until the pins are brought into engagement with the sur' faces formed by said openings.
- stroke of said backup roll balancing system is such as to take up said clearance to cause the rails to engage said support means and lift the lower work roll off the lower backup roll and allow the upper work roll to separate itself from the lower work roll.
Abstract
Description
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB585/69A GB1292331A (en) | 1969-01-03 | 1969-01-03 | Improvements in rolling mills |
Publications (1)
Publication Number | Publication Date |
---|---|
US3651679A true US3651679A (en) | 1972-03-28 |
Family
ID=9706971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US883522A Expired - Lifetime US3651679A (en) | 1969-01-03 | 1969-12-09 | Rolling mill |
Country Status (6)
Country | Link |
---|---|
US (1) | US3651679A (en) |
DE (1) | DE1965337A1 (en) |
ES (1) | ES375138A1 (en) |
FR (1) | FR2027726A1 (en) |
GB (1) | GB1292331A (en) |
NL (1) | NL6919687A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3869898A (en) * | 1973-02-22 | 1975-03-11 | Secim | Roll changing device for a mill or a similar machine |
US4038856A (en) * | 1975-10-08 | 1977-08-02 | Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft | Driven roller assembly for supporting, conveying, bending, straightening or deforming a continuously cast strand |
US4162626A (en) * | 1978-05-03 | 1979-07-31 | Wean United, Inc. | Rolling mill |
US6408667B1 (en) * | 2000-10-26 | 2002-06-25 | Bethlehem Steel Corporation | Four-high mill stand roll change device, a method of retrofit, and a roll change device therefrom |
CN102553928A (en) * | 2012-01-09 | 2012-07-11 | 宁波大学 | Roll system of replaceable-roll type cross wedge rolling mill |
CN104858238A (en) * | 2015-05-26 | 2015-08-26 | 中冶陕压重工设备有限公司 | Roll changing mechanism for working roll of rolling mill |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3211378A1 (en) * | 1982-03-27 | 1983-12-29 | Mannesmann AG, 4000 Düsseldorf | ROLLER SUPPORT DEVICE FOR WORKING ROLLER CHANGE ON ROLLING DEVICES |
DE4140876C2 (en) * | 1991-12-11 | 1994-04-21 | Voith Gmbh J M | Roller press |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3208260A (en) * | 1960-08-18 | 1965-09-28 | United Eng Foundry Co | Rolling mill |
US3312096A (en) * | 1963-10-03 | 1967-04-04 | Davy & United Eng Co Ltd | Rolling mills |
-
1969
- 1969-01-03 GB GB585/69A patent/GB1292331A/en not_active Expired
- 1969-12-09 US US883522A patent/US3651679A/en not_active Expired - Lifetime
- 1969-12-29 DE DE19691965337 patent/DE1965337A1/en active Pending
- 1969-12-31 FR FR6945626A patent/FR2027726A1/fr not_active Withdrawn
- 1969-12-31 NL NL6919687A patent/NL6919687A/xx unknown
-
1970
- 1970-01-02 ES ES375138A patent/ES375138A1/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3208260A (en) * | 1960-08-18 | 1965-09-28 | United Eng Foundry Co | Rolling mill |
US3312096A (en) * | 1963-10-03 | 1967-04-04 | Davy & United Eng Co Ltd | Rolling mills |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3869898A (en) * | 1973-02-22 | 1975-03-11 | Secim | Roll changing device for a mill or a similar machine |
US4038856A (en) * | 1975-10-08 | 1977-08-02 | Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft | Driven roller assembly for supporting, conveying, bending, straightening or deforming a continuously cast strand |
US4162626A (en) * | 1978-05-03 | 1979-07-31 | Wean United, Inc. | Rolling mill |
US6408667B1 (en) * | 2000-10-26 | 2002-06-25 | Bethlehem Steel Corporation | Four-high mill stand roll change device, a method of retrofit, and a roll change device therefrom |
CN102553928A (en) * | 2012-01-09 | 2012-07-11 | 宁波大学 | Roll system of replaceable-roll type cross wedge rolling mill |
CN102553928B (en) * | 2012-01-09 | 2014-04-16 | 宁波大学 | Roll system of replaceable-roll type cross wedge rolling mill |
CN104858238A (en) * | 2015-05-26 | 2015-08-26 | 中冶陕压重工设备有限公司 | Roll changing mechanism for working roll of rolling mill |
Also Published As
Publication number | Publication date |
---|---|
ES375138A1 (en) | 1972-03-16 |
DE1965337A1 (en) | 1970-07-16 |
GB1292331A (en) | 1972-10-11 |
FR2027726A1 (en) | 1970-10-02 |
NL6919687A (en) | 1970-07-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3208260A (en) | Rolling mill | |
US3651679A (en) | Rolling mill | |
US3171304A (en) | Rolling mills | |
US3180125A (en) | Roll changing apparatus | |
US3212314A (en) | Beam and plate rolling mill | |
US3394576A (en) | Rolling mill | |
US2525687A (en) | Separation device for rolling mills | |
US3583195A (en) | Roll changing apparatus | |
US3446050A (en) | Rolling mills | |
CN102989774B (en) | Combined three-roller continuous rolling mill | |
US3459023A (en) | Rolling mill | |
US3164044A (en) | Rolling mills | |
US3779062A (en) | Roll positioning means for a rolling mill | |
US3736785A (en) | Rolling mill | |
US4238947A (en) | Work roll chock assembly for a rolling mill | |
US3738142A (en) | Rolling mill | |
US3593554A (en) | Rolling mills | |
US4059002A (en) | Multi-roll rolling mill stand | |
RU2402394C2 (en) | Roll bending device | |
US2835021A (en) | Roll stand lock | |
US3541830A (en) | Rolling mill roll changing | |
US6217081B1 (en) | Device for coupling and uncoupling the media supply lines at bearing chocks of rolls, particularly back-up rolls, mounted in roll housings | |
GB1075701A (en) | An improvement in or relating to rolling mills | |
US3307386A (en) | Four-high rolling mill | |
US3319450A (en) | Rolling mills |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: PITTSBURGH NATIONAL BANK Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP.OF OH;REEL/FRAME:004458/0765 Effective date: 19850610 |
|
AS | Assignment |
Owner name: PITTSBURGH NATIONAL BANK,PENNSYLVANIA Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307 Effective date: 19860630 Owner name: PITTSBURGH NATIONAL BANK Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307 Effective date: 19860630 |
|
AS | Assignment |
Owner name: WEAN UNITED, INC. Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:PITTSBURGH NATIONAL BANK;REEL/FRAME:004925/0218 Effective date: 19880509 |
|
AS | Assignment |
Owner name: UNITED ENGINEERING ROLLING MILLS, INC. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WEAN INCORPORATED;REEL/FRAME:004920/0256 Effective date: 19880610 |