US3713314A - Retractable gauge control assembly for a rolling mill - Google Patents

Retractable gauge control assembly for a rolling mill Download PDF

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Publication number
US3713314A
US3713314A US00180296A US3713314DA US3713314A US 3713314 A US3713314 A US 3713314A US 00180296 A US00180296 A US 00180296A US 3713314D A US3713314D A US 3713314DA US 3713314 A US3713314 A US 3713314A
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US
United States
Prior art keywords
window
assembly
rolling mill
mill
housing
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
Application number
US00180296A
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English (en)
Inventor
J Adair
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.)
United Engineering Inc
Original Assignee
Wean United Inc
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
Application filed by Wean United Inc filed Critical Wean United Inc
Application granted granted Critical
Publication of US3713314A publication Critical patent/US3713314A/en
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP.OF OH
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP. OH.
Assigned to WEAN UNITED, INC. reassignment WEAN UNITED, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). TO RELEASE SECURTIY DOCUMENT RECORDED AT REEL, FRAME 4792/307 RECORDED FEB. 26, 1987 Assignors: PITTSBURGH NATIONAL BANK
Assigned to UNITED ENGINEERING ROLLING MILLS, INC. reassignment UNITED ENGINEERING ROLLING MILLS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WEAN INCORPORATED
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
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • 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
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting

Definitions

  • ABSTRACT The disclosure of this invention relates to a rolling mill of the hydraulic roll gap control type.
  • the disclosed control includes a bar springload cell assembly that is adjustable to position the spring in various rolling positions by a power jack. This entire assembly is received in the window of the mill and by a piston cylinder assembly is retracted therefrom onto a platform when maintenance is to be performed on the assembly.
  • Rolling mills provided with an hydraulic roll gap control system including a pair of piston cylinder assemblies for adjusting the rolls thereof are sometimes provided with a control system that includes a position indicator, such as, a mechanical spring-load cell ar rangement for each cylinder assembly.
  • the cells measure the deflections of the spring as a function of a change in the rolling load.
  • the spring and load cell arrangements are mounted on mechanical jacks employed to adjust the vertical position of the spring assemblies to compensate for different size rolls being employed in the mill.
  • FIG. 1 is a sectional view of the lower portion of a rolling mill illustrating a portion of the lower roll assembly, one of the force applicator cylinders, and its mechanical gauge control components,
  • FIG. 2 is a sectional view taken on lines 2 2 of FIG. 1, and
  • FIG. 3 is a partial sectional view taken on lines 3 3 of FIG. 2.
  • FIG. 1 there is illustrated the lower portion of one of the housings ll of a 4-high rolling mill, which portion also illustrates the window 12 of the housing into which there is received the roll assemblies of the mill, only the lower backup roll assembly being shown which comprises a lower backup roll 13 and its right-hand bearing-chock assembly 14.
  • the other components of the mill have not been illustrated since they are well known in the art. These include, of course, the standard mechanical screwdown located at the top of the mill which will be employed to initially set the roll gap between the work rolls thereof.
  • Both the left and right bearing-chocks of the lower backup roll 13 are received in and carried by a sled in which in FIG. 1 the chock 14 is shown separated from the supporting surface of the sled by a series of filler plates 16, the sled 15 being employed to remove the backup rolls, which would include the top backup roll, from the mill for the purpose of roll changing.
  • a force applicator piston cylinder assembly 18 Immediately below the portion 17 of the roll changing sled 15 there is provided a force applicator piston cylinder assembly 18, the cylinder of which is movable and engages the portion 17 of the sled, the cylinder being indicated by the reference number 19 in FIG. 1 where it engages the member 17 of the sled. Since the cylinder 19 is the movable element of the piston cylinder assembly 18, as can be seen in FIG.
  • the piston 22 thereof is stationarily mounted on a base member 23.
  • the base member 23 is actually arranged at the bottom of the window 12 of the housing 11.
  • a force applicator cylinder is provided for the other bearing chock assembly of the roll 13.
  • the mechanical portion of the control system is comprised of an integral unit 24 that extends between the cylinder 19 and the base member 23.
  • each side of the cylinder 19, which is'symmetrical about its vertical center, is provided with a projecting portion 25, the outer underside surface of which is provided with a wear plate 26.
  • a rocker 27 secured to support member 28 which is connected to and forms part of a load cell 29.
  • the lower portion of the load cell is provided with another rocker 32 which engages midway between its ends a bar spring 33, the bar spring, as best shown in FIG. 3, having at its ends and underneath its lower surface rockers 34 which engage wear plates 35 carried by a cross support member 36.
  • the cell and bar spring are enclosed by a cartridge 38 so as to keep out contaminants.
  • the cross member 36 at its center is supported by a protruding shaft 42 of a mechanical jack 42a.
  • the jack comprises an internally threaded sleeve 43, which is shown only in FIG. 2 and which is rotatably carried by bearings 44 so that the sleeve 43 is allowed to rotate but is held against axial movement.
  • a mitre gear 45 At the outer periphery of the sleeve 43 there is secured a mitre gear 45.
  • the internal teeth of the sleeve 43 mesh with external teeth formed on an inner sleeve 46. This sleeve is not held against rotation, so it is allowed to move vertically as one views FIG. 2.
  • the sleeve46 is provided with a vertical cylinder opening 47 for receiving a piston 48, the upper portion of which has already been defined by the reference number 42. As shown in FIG.
  • the sleeve 43 is enclosed in an outer case 51, the base of which is received in guideways 52 which are secured to the base member 23.
  • the upper portion of the jack is provided with a cartridge 53 to prevent contaminants from finding their way into the interior of the jack assembly.
  • the cylinder 47 is provided with pressurized fluid through a line 54 having a connection 58.
  • a cooperative mitre gear arranged at right angles to the gear 45 is provided so as to drive the sleeve 43.
  • This latter mitre gear is connected by a coupling 55 shown in FIG. 1 to a drive unit 56.
  • the mitre gears, including the gear 45 will cause rotation of the sleeve 43 and, hence, vertical movement of the sleeve 46 and the piston 48 so as to adjust the bar spring 33 and the cell 29 with respect to the cylinder 19 of the piston cylinder assembly 18.
  • the entire mechanical gauge control component by virtue of the guides52, is adapted to be removed as a unit from the window 12 of the mill.
  • a platform 57 projecting away from the mill and having a supporting surface that is in line with a supporting surface of the base member 23.
  • a movement sensitive means arranged to be engaged by said mechanical means
  • a means on said support member for permitting the remote means tobe retracted from an operative position in said window to an inoperative position removed from said window.
  • an assembly remote from said rolls comprising a mechanical means for detecting movement of one of said ro'llsrelative to a fixed reference point associated with the rolling mill, a load sensitive means arranged to be engaged by said mechanical means, means for moving said load sensitive means,
  • said mill includes a force applicator means for adjusting said rolland wherein said mechanical means includes a bar spring arranged to be deflected by a change in the rolling load of said mill,
  • said load sensitive means comprising a load cell arranged between said force applicator means and said bars ring said load cell and said bar spring being movable as a unit,
  • said means for moving said load sensitive means comprising an externally external threaded sleeve and an internally threaded sleeve, said sleeves being arranged in meshing relationship,
  • a piston cylinder assembly mounted in said opening having its piston arranged to carry said bar spring and cell.
  • said means for permitting the assembly to be retracted comprises a guide member mounted in said-window and supported by said housing, said support member having guiding surfaces formed thereon and received in said guiding member,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Crushing And Grinding (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
US00180296A 1970-10-02 1971-09-14 Retractable gauge control assembly for a rolling mill Expired - Lifetime US3713314A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4696970 1970-10-02

Publications (1)

Publication Number Publication Date
US3713314A true US3713314A (en) 1973-01-30

Family

ID=10443258

Family Applications (1)

Application Number Title Priority Date Filing Date
US00180296A Expired - Lifetime US3713314A (en) 1970-10-02 1971-09-14 Retractable gauge control assembly for a rolling mill

Country Status (8)

Country Link
US (1) US3713314A (de)
JP (1) JPS51953B1 (de)
BE (1) BE773395A (de)
CA (1) CA944195A (de)
DE (1) DE2148449C3 (de)
ES (1) ES395611A1 (de)
FR (1) FR2112242B1 (de)
GB (1) GB1354680A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851480B4 (de) * 1998-11-09 2007-09-13 Sms Demag Ag Positionsgeber zur Anstellhubwegmessung der Walzen eines Walzgerüstes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431762A (en) * 1965-07-05 1969-03-11 United Eng Foundry Co Constant gap rolling mill
US3496743A (en) * 1966-09-09 1970-02-24 United Eng Foundry Co Rolling mill for producing constant gauge

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431762A (en) * 1965-07-05 1969-03-11 United Eng Foundry Co Constant gap rolling mill
US3496743A (en) * 1966-09-09 1970-02-24 United Eng Foundry Co Rolling mill for producing constant gauge

Also Published As

Publication number Publication date
FR2112242A1 (de) 1972-06-16
DE2148449B2 (de) 1974-01-31
DE2148449C3 (de) 1974-08-22
GB1354680A (en) 1974-06-05
CA944195A (en) 1974-03-26
DE2148449A1 (de) 1972-04-06
JPS51953B1 (de) 1976-01-12
BE773395A (fr) 1972-01-31
ES395611A1 (es) 1973-11-16
FR2112242B1 (de) 1974-05-31

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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