US1614423A - Rolling mill - Google Patents

Description

- i 1,614,423- Jan. 11,1927. J. R COE V ROLLING MILL Filed August 7 :92; 3 Sheets-Sheet 1 auventoz Jan. 11, 19271 J. R. COE

ROLLING MILL Filed August 7, 1925 3 Sheets-Sheet 2 Jan. 11 1927. l r 1 4, 23

J. R. co;

ROLLING MILL Filed August '7 1925 3 Sheets-Sheet 5 gwventoz abtmmoqa Patented Jan. 11, 1927.

{UNITED STATES 1,614,423 PATENT OFFICE.

JAMES R. ODE, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE AMERICAN BRASS COMPANY, E WATERBURY, CONNECTICUT, A CORPORATION OF CONNECTICUT.

Bounce MILL.

Application filed August 7, 1925. Serial No. 48,730.

This-invention relates to rolling mills, and has for an object to provide improved means to obtain the necessary stiffness with the use of rolls of comparatively small diameter.

e .[t is also an object of the invention to so Jmount the .working rolls and the stiffening and suppporting means therefor that one of the rolls and its stiffening means may be adjusted as a whole or as a ,unit relative to in the other working roll to secure the required relative ad'ustment between the rolls.

Itis a ,urther object of the invention. to so construct the mounting and stiffening means for the working rolls that they may be mounted in the standard housings used in this typeof device, and therefore, rolls provided with my improved stifiening and supporting means may be substituted for larger rolls mounted-in the housings-with:

out reconstructing the housings.

Withthe foregoing and other objects in view, I have devised the construction illustrated in the accompanying drawings, and which 1 in the preferred construction comprises a air of working rolls each of which is hacked and supported by two sets of r0- tating supportin members, the supporting members for eac roll being mounted on a heavy casting extending between the. housings. The rotating membersare mounted to rotate on stationary shafts mounted on the castings and the shafts are supported thereby at a number of different positions throughout the lengths of the shafts, the

rotating members being mounted between the shaft supports. These elements are so constructed and arranged that a roll, the supporting'casting, the shafts and the rotating supporting members constitute a unit, an

" one of these units is so mounted that it is adjustable asa whole relative to the otherunit in a vertical plane, this adjustment being-secured by the usual means of lifting rods actuated by levers and counterweights or springs, in conjunction with the usual adjusting screws.

Referring to the accompanying drawings, Fig. 1 is a side elevation of a rolling mill showing my improved construction.

through the same substantially on line 2-'2 of Fig. 1 but drawn to a larger scale."

Fig. 3"is an end elevation ofthe mill looking from the. right of'Fig. 1, and

' M Fig. 4 is a detailed view showing one of Fig. 2 .is a transverse vertical section the working rolls in elevation and the stifi'ening and supporting means therefor in vertical section.

In rolling mill practice frequently very high pressures are; required and rolls to withstand these pressures and not yieldor spring an objectionable amount must be of a very I large diameter, which makes them expensive and also difficult to handle. These largerrolls are also objectionable for certain work because, on account-of the small angle at the rolling point, between the rolls, it. is diflicult to secure the required reduction-in the metal being rolled.

To overcome these objections mills have been made with working rolls of relatively small diameter in order to secure a larger angle at the rollingpoint between the rolls an give the required reduction, and these rolls have been backed or supported by means of separate idling rolls to prevent excessive springing of. the working rolls and to givethe required strength, but as these backing rolls are-supported in substantially the sa'me' way as the working rollsthey must be of a large diameter to give the re- 1 quired strength and stiffness, and they reing roll on a plurality o' spaced rotating members mounted on a stationary shaft which is supported throughout its length between" the rotating elements, I can use a relatively. small shaft and can produce a construction 1 which will give the required strength and stiffness to the working roll and which does not require specially designed housings or .framesfbut may be mounted in the regular housings. v In the accompanying drawings is shown a mill involving my, improved construction.

In this mill 10 represents a air of the usual housings or frames mounte in spaced rela-' tion, and the usual supporting rails 11- on which they are longitudinally adjustable,

but may be secured in adjusted position by 0 g any suitable means. Mounted in these housings are 'a pair of working'rolls 12 which are driven from any suitable source of power by the couplings 13, the ends of the roll necks being squared as shown at 14, as in,

the usual construction. These working rolls are each backed and thus stiffened by two sets of rotating supporting members 15.

There may be but a single set for each roll, but I prefer to use two sets, as shown in Fig. 2, positioned on opposite sides of'the vertical plane through the axis of the roll to carry the lateral thrust as well as the vertical thrust. There may be any desired number of these rotating members engaging the surface of the working rolls and-spacedat suitable distances throughout the-length of'theserolls, in" the present drawing five supports may be integral with the support 17 or may be separate blocks as desired, and the rotating members 15 preferably rotate being shown, and each' set of these members is mounted to rotate on a stationary shaft 16 carried by a support 17 mounted in the hous ings and extending between them. The shafts are preferably reduced in diameter somewhat between these rotating members ,as indicated at 18, and they are supported at these reduced portions directly on the support 17 as'shown at 19' in Fig. 4. These on antifriction' bearings on the shaft, such as ballor roller bearings 20.

The supports 17 are shown asheavy castings which extend longitudinally between the two housings. In the present construction the lower casting is seated at its opposite ends in the housings and rests on--the housings. The upper casting 17 is. guided-- I maintain it in proper position. These two; castlngs are of slmllar construction and are i strengthened to give them the requlred ver-- lower walls 21 of the openings 22 in the at its opposite ends for vertical movement in these openings, the side walls of the open ings forming guides for the casting and strain on the roll incident to the rolling operation tending to bend it laterally is transmitted to the rotating members 15, by these members to the shaft 16, and by the shaft to the heavy castings or suppo Thus the'working rolls may be given any diameter which isthe most suitable for the particular work to be performed, having in mind the desired angle between the rolls at. the rolling space, and the strains are taken up bythe' heavy castings 17.

The shaft 16 may be held in position in It will be ape the support 17 by suitable means such as caps 25 and 26, which are secured to the casting by any suitable means, such as the screws 27, and extend over the reduced por tions of the shaft to hold the shaft in position. They mayalso be used to assist in retaining the roller bearings 20 in proper position.

' The supports for the two rolls are so constructed and arranged that each working roll, the rotatable supporting members, the shafton which th se members are mounted and the supporti g casting therefor comprise a separate unit, and one of these units, the upper one in the present instant, is mounted so that it is adjustable as a whole relative to the lower unit to give the required adjustments between the two work.- ing rolls for rolling various thicknesses of metal and so forth. To accomplish this.in the present construction the upper bearing block 28 for the reduced necks of'the upper-roll, which blocks are guided .in the openings 22 in the housing, are supported by rods 29 which extend upwardly from below thehousing where they are supported by the usual lever and counterweights or the heavy springs 30. These springs are mounted on asup ort 31 carried. on the under side casting 17. It will thus be apparent that the springs30 acting through the rods 29,

maintain. the upper working -rollagainst Lthe backing members 15, and maintain the.

roll, these members and the supporting castlng therefor in the same relative position, and that these elements by the coaction of the adjusting screw with 'these rods "springs allow adjustment of this unit as a whole and without chan ing in any way the relative positions of the elements in the unit, and furthermore, that this unit may be adjusted in a vertical lane relative to the lower working roll. he lower blocks 36 are provided to form upper bearings for the necks of the lower working roll through thatwith the construction andarrangement the roll mounted to rotateon said shaft, and

described I can use working rolls of relative ly small diameter, and can secure the necesaig stiffness by .means' of the supporting an backing members 15 supported in proper position by the" supporting castings 17.- By mounting the cluster or group consisting of a working roll and its rotating backing members in one big casting,they can be adjusted as a whole and the various elements can be held in proper relation to each other, and the change in the relative positions of the various elements under stress is reduced to a minimum. 4

Having thus set forth the nature of my invention, what I claim is:

1. In a rolling mill, a working roll, a

plurality of spaced supporting members for said roll arranged to engage the surface thereof, a shaft extending longitudinall of the roll on which said supporting 'mem rs are mounted to rotate, and supporting means for the shaft between said members.

2. In a rollin mill, a working roll, a support at one si e of said roll, a stationa shaft extending longitudinally of the ro'l mounted on said support and supported thereby at a plurality of spaced positions,

and a plurality of spaced supporting members for the roll mounted to rotate on the. shaft between said supporting positions.

3. In a rolling mill, a workm roll, a support at one side of said roll, a pair. of'stationary spaced shafts carried by said support extendin and supporte thereby at a plurality of spaced positions, and aplurality of spaced I supporting members for the roll mounted ing sp, ced from eac to rotate. on each shaft between: the-supports for the shaft.

- 4-,, In a rolling mill, a working roll, a support at one side of the roll, a lurality of rotating supporting members or the roll mounted on said sup ort, said members beother and engaging the su ace of the roll at spaced positions throughout its length, and supporting means for the members on the support located between adjacent members.

5. In a rolling mill,'a working roll, a support at one side-of the roll, aipair of spaced shafts mounted on the support and extending longitudinally of the roll, a plurality of supporting members for the roll mounted to rotate on each shaft and spaced from each other longitudinally of the roll, and means for supporting the shafts between adjacent members.

6. In a rolling mill, a pair of spaced- I and extending lon 'tudinally-of the roll, a plurality of space supporting members for plurality of spaced on the sup longitudinally of the roll' means on the support for supporting the shaft between adjacent members.

7. In a rolling mill, a pair of spaced housings, a pair of superimposed working rolls mounted in said housings, a support extending betwee the housings at one side of eachroll, a plurality of individual supporting members for each roll spaced from each other longitudinally of the rolls and rotatably mounted on the supports, supporting means on the sup ort for the members and located between a jacentmembers, and means for adjusting one of the rolls, its sup orting members and the support for sai members as a unit.

8. 'In a rolling mill, a pair of spaced housings, a. working roll mounted in said housings, a support extending between the housings at oneside of the roll, a shaft extending longitudinally of the roll mounted on the support and supported thereby at a sitions throughout its length, and a pluralit of supporting members'rotatably mounte on the shaft between said. supports for the shaft and engaging the surface of the roll.

housings, a working roll mounted in said housings, a suppp'rt extending between the housings, at one side of the roll, a shaft extending longitudinally of-the roll mounted rt and supported thereby at a plurality o spaced positions throughout its length, a plurality of supporting members for the roll'rotatably mounted on the shaft between said supports for the shaft, and means for adjusting the roll, the support, the shaft and the supporting members as a unit.

' 10. In a rolling mill, a pair of spaced housings, a working roll mounted in the housings, a support extending between the housings at one side of the roll, a shaft extending longitudinall of the roll reduced in diameter-at a plura ity of spaced positions and supported on the supportat said reduced portions, and a plurality of supporting members engaging the roll and mounted to rotate on the shaft between said reduced ortions.

11,. In a rollin mill, a pair o spaced housings, a working roll mounted in the housings, a support extending between the housings at one side ofthe roll, a stationary shaft mounted on the support at a plurality of spaced positions throughout, its length and extending longitudinally of the roll, a plurality of supporting members for the "roll mounted to rotate about the shaft between said positions, and antifriction bearings between said members and the shaft.

12. In a rolling mill, a pair of superimposed working rolls, a pair of spaced housings, a support extending between the housmgs above and below the rolls, a pair of spaced stationary shafts -carried bi each support extendinglongitudinally oft e rolls and supported onthe support at spaced positions along their lengths, supporting mem- 5 bers for the rolls mounted to rotate 'on said shafts between said supporting positions; and means for, adjusting one of the rolls, the supporting members therefor and their support'asaunit.

13.;In a rollingmill a pair of spaced housings, a work ng roll between the hous-- mgs a rigid support extending. between the housings, a workingroll between the thereof and mounted to rotateon the shaft 20 between said supports for the shaft.

14.111121 rolling 'mill, a pair of s aced ousings, a rigid support extendingbetween the housings at one side of the roll andmounted at'its ends in the housings, two sets of backing members for the roll engaging the surface thereof and mounted to rotate independently about axes extending longitudinally of the roll and the individual'elements ofeach" set being spaced from each other longitudinally of the roll, said backing elements being provided, to support the roll throughout substantially its entire length, and means between the individual elements 35 forsupporting them on said support.

In testimony whereof I affix my signature.

' JAMES R. COE

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