US1370998A

US1370998A - Rolling-mill

Info

Publication number: US1370998A
Application number: US374284A
Authority: US
Inventors: Henry A Roemer
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-04-16
Filing date: 1920-04-16
Publication date: 1921-03-08
Anticipated expiration: 1938-03-08

Description

H. A. ROEMER.

ROLLING MILL.

APPLICATION FILED APR. 16. 1920.

Patented Mar. 8, 1921.

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H. A. ROEMER.

ROLLING MILL.

APPLICATION FILED APR. 16, I920- 1,370,9 98, Patented Mar. 8, 1921.

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H. A. ROEMER.

ROLLING MILL.

APPLICATION FILED APR. 16. 1920.

Patented Mar. 8,1921.

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HENRY A. ROEMER, OF CANTON, OHIO.

ROLLING-MILL.

Specification of Letters ."Patent.

Patented Mar. 8, 1921.

Application filed April 16, 1920. Serial No. 374,284.

To all whom it may concern:

Be it known that I, HENRY A. RonMnR,'a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented a new and useful Rolling-Mill, of which the following is a speci: fication.

This invention relates to rolling mills and more particularly to the driving mechanism for balance roughing mills such as are used for roughing or rolling sheets, bars, plates or slabs in sheet, tin, jobbing and plate mills.

The objects of the invention are the provision of a driving mechanism for driving the upper roll of a balance roughing mill from the lower roll, regardless of the distance apart the rolls may be.

The above and ancillary objects are attained by providing a fixed gear upon the end of the lower roll shaft arranged to mesh at all times with an idle gear, said idle gear meshing with a second idle gear, both of which are mounted upon fixed bearings upon the mill housing, the second idle gear meshing with a gear which is frictionally mounted upon the end of the upper roll shaft, the center of the upper roll being below the center of the second idle gear when the roll is in its lowered position, and above the center ofsaid idle gear when the roll is in its raised position, said frictionally mounted gear at all times meshing with said second idle gear.

With these objects. in view the invention consists in the novel construction and arrangement of parts, herein after described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size and "minor details of construction may be made within the scope of the appended claims, without departing from the spirit or menficing any of the advantages of the in vention.

The invention thus set forth in general terms is illustrated in the accompanying drawings, forming part hereof, in which:

Figure 1 represents a side elevation of a rolling mill embodying the invention.

Fig. 2 is a front elevation thereof. Fig. 3 is a fragmentary s de elevation, partly in section of an end portion of the'upper roll shaft showing the gear rrictionally mounted thereon; and

Fig. 4 is an end view thereof.

A practical embodiment of the invention is disclosed in the accompanying drawings, forming a part of this specification in which similar numerals of reference indicate corresponding parts throughout the several views.

Referring to the drawings the housing of a mill of any usual and well known construction is indicated generally by the numeral 1. The lower roll 2 is provided with the usual shaft 3, which is journaled in a suitable permanent bearing provided in the housing and the shaft 4 of the upper roll 5 is journaled in a suitable sliding bearing 6 mounted in guides 7 provided upon the housing and arranged to be raised or lowered in the usual manner by means of screws 8, or other well known means or devices used in balance mills.

A gear 9 is fixedly mounted upon the shaft of the lower roll 2 upon the outside of the housing. A bracket 10 is fixedly attached to the housing at one side of the

roll shafts

3 and 4 and is provided with

bearings

11 and 12 within which are journaled the

shafts

13 and 14 of the lower and

upper gears

15 and 16 respectively, said gears meshing with each other, the lower gear 15 meshing at all times with the gear 9 upon the lower roll. The neck of the upper roll is provided with a conical or tapered portion 17 upon which is mounted the internally coned ring 18 provided around its periphery with the gear teeth 19, said teeth meshing at all, times with the gear wheel 16. A disk 20, provided with a central aperture, shaped to receive the end of the upper roll shaft 4, is slidably mounted upon said upper roll shaft and normally holds the coned ring 18 in frictional engagement with the coned or tapered portion 17 of the neck. Pins 21 are fixed in the outer extremity of the conical portion 17 of the neck and extend outwardly to the end of the shaft 4, a disk 22 similar to the disk 20 being slidably mounted upon the end portion of the shaft'4 and upon said pins, nuts 23 being provided upon the screw threaded extremities 24. of said pins to prevent outward movement of the disk 22, coil springs 25 being interposed between the

disks

20 and 22 to normally urge the disk 20 inwardly against the coned ring 18 and hold the same in frictional engagement with the coned portion 17 of the neck.

Each of the pins 21 is squared for a portion of its length as shown at 21 and the apertures in the disk 20 are similarly squared to receive the squared portions of the pins and lock them against movement after the disk is placed in position thereon, thus preventing the pins from becoming accidentally loosened owing to the jarring of the mill.

It will of course be understood that frictional adjustment of the gearing 18 is obtained by placing the desired amount of tension upon the springs 25 to allow the gear rin to slip upon the tapered portion of, the neo of the upper roll under any desired pressure. This adjustment is obtained by adjusting the nuts 23 upon the threaded portions of the pins 21 to move the disk 22 toward .or from the tapered portion 17 thus providing for compression or expansion of the springs 25 as desired and allowing the gear ring to slip upon the tapered portion of the neck of the upper roll at the proper time to prevent injury to the rolls and gearing.

The upper roll 5 is adjustable vertically with reference to the lower roll 2 and the center of the upper roll is initially located in the same horizontal plane with the center of the shaft 14.- of the the rolls begin to wear the center of the upper roll 5 will be normally located below the C811t6I--0f the shaft 14: when the upper roll is located at the lower limit of its movement as shown in Fig. 1 of the drawings. When the roll 5 is raised to the upper limit of its movement the center thereof will be above the center of the shaft 14:, the teeth 19 being always in mesh with the gear 16 in an adjusted position of the upper roll 5.

ith the construction of gearing illustrated and above described it will be seen that there will be no danger of serious injury to the mill or to the gearing in the event that a slab, plate or bar becomes jammed between the rolls as the frictionally mounted gear ring 18 will be permitted to rotate upon the conical or tapered portion of the upper roll independently of the roll, in this event, preventing damage to the mill or caring.

he gearing may be provided upon one end of the rolls or upon both ends as shown in F ig. 2, if desired, and other changes may be made which come within the scope of the invention.

I claim: 7

1. A roughing mill including a housing, a lower roll journaled therein, an upper roll adjustable in the housing toward and from the lower roll, a gear fixed upon one of said rolls, a second gear frictionally mounted upon the other roll, journal bearings fixed with relation to the housing and a train of gears journaled in said bearings and meshgear 16 but when' lower rolls.

2. A roughing mill including a housing, a lower roll journaled in said housing, an upper roll adjustable in said housing toward and from said lower roll, a gear fixed upon the lower roll, journal bearings fixed with relation to the housing, a pair of idler gears journaled in said bear ngs and meshing with each other, one of said idler gears meshing with the gear upon the lower roll and a gear frictionally mounted upon the upper roll and meshlng with the other of said idler gears. V

3. A roughing mill including a housing, a lower roll journaledin said housing, an upper roll adjustable in said housing toward and from said lower roll, a gear fixed upon the lower roll, journal bearmgs fixed upon the housing, a pair of idler gears journaled in said bearings and meshing with each other, one of said idler gears meshing with the gear upon the lower roll and a gear frictionally mounted upon 'the up er roll and meshing with the other of said idler gears.

4:. A roughing mill including a housing, a lower roll journaled in said housing, an upper roll adjustable in said housing toward and from said lower roll, a gear fixed upon one of said rolls, a ear frictionally mounted upon the other rol journal bearings fixed with relation to the housing and a pair of idler gears journaled in said journal bearings and meshing with each other, one of said idler gears meshing with the gear upon the upper roll and the other idler gear meshing with the gear upon the lower roll.

5. Aroughing mill including a housing, a lower roll journaled in said housing, an upper roll adjustable insaid housing toward and from the lower roll, a gear fixed upon the lower roll, a gear frictionally mounted upon the upper roll, a bracket fixed upon the housing and a pair of idler gears journaled in fixed hearings in said bracket and meshing with each other, one of said idler gears meshing with the gear upon the upper roll and the other idler gear meshing with the gear upon the lower roll. a

6. A roughing mill including a housing, a roll journaled in said housing, a second roll adjustable in the housing toward and from the first roll, a gear fixed upon .one of said rolls, a gear frictionally mounted upon the other roll, journal bearings fixed with relation to the housing and a pair of idler gears journaled in said bearings and meshing with each other, one of said idler gears meshing with the fixed ear and the other idler gear meshing with t e frictionally mounted gear.

7 A rou hing mill including'a housing, a lower roll ournaled in said housing, an upper roll adjustable in the housing toward and from the lower roll, a conical neck upon the upper roll, a gear-ring mounted upon roll journaled in said housing, a-second roll said conical neck, means for holding the adjustable in the housing toward and from gear-ring in frictional engagement with said the first roll, a gear mounted upon each roll, conical neck, a gear fixed upon the lower journal bearings fixed with relation to the 15 5 roll, journal bearings fixed with relation to housing and gears journaled in said bearthe housing and a pair of idler gears jourings and meshing with each other and with naled in said bearings and meshing with the gears upon the rolls, one of said gears each other, one of said idler gears meshing being frictionally mounted. with said gear-ring and the other idler gear In testimony that I claim the above, I 20 10 meshing with the gear upon the lower roll. have hereunto subscribed my name. 8. A roughing mill including a housing, a HENRY A. ROEMER.