US1071720A - Rolling-mill. - Google Patents

Description

J. FAWELL.

ROLLING MILL.

APPLICATION FILED we. 13, 1912.

1,071,720.- Patented Sept. 2, 1913.

4 SHEETS-SHEET 1.

FIG. I.

WITNESSES INVENTOR W644 3M M MAO/W m gw J. FAWELL.

ROLLING MILL.

APPLIOATION FILED AUG. 13, 1,912. 1,071,720. Patented Sept. 2, 1913.

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Q Q h Z N a m wnmtsszm a 5 INVENTDR J. FAWBLL.

ROLLING MILL.

APPLIOATION FILED AUG.13, 1912.

1 071,720. Patented Sept.2,1913. 3 4SHEETB-BHEET3.

at M 26 W/ Mam i 3 W x WITNESSES INVENTOR J. FAWELL.

ROLLING MILL.

APPLIGATION FILED AUGJS, 1912.

Patented Sept. 2, 1913.

4 SHEETS-SHEET 4.

w A I W'BQMM t M WITNESSES mm m JOSEPH FAWELL, OF PITTSBURGH, PENNSYLVANIA.

ROLLING-MILL.

Specification of Letters Patent.

Patented Sept. 2, 1913.

Application filed August 18, 1912. Serial No. 714,871;

To all whom it may concern Be it known that I, Josnrn FAWELL, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, have invented or discovered certain new and useful Improvements in Rolling-Mills, of which improvements the following is a specification.

The inventiondescribed herein relates to certain improvements in that class or type .of mill known in the art as a slabbing mill and consisting of horizontal, and vertical rolls.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings forming a part of this specification, Figure 1 is a sec tional plan view of my improved mill; Fig. 2 is a sectional elevation of the same on a plane coincident with the axes of the vertical rolls; Fig; 3 is a sectional view on an enlarged scale illustrating a modification in the mechanism for driving the vertical rolls; Fig. 4 is a sectional view on a plane indicated by the line IVIV, Fig. 3; Fig. 5 is a sectional detail view illustrating a modification in the connection from the vertical roll to its operating beveled gear; Figs. 6, 7 and 8 illustrate modifications of the construction shown in Fig. 3.

In the ractice of the invention, the horizontal rolls 1 are mounted in the usual or any suitable manner in the housings 2, and any suitable means. known in the art are employed for raising and lowering the upper roll.

The housings 3 for the vertical rolls are arranged such a distance apart as to permit the vertical rolls 4 and 5 to be separated a distance apart approximately equal to the length of the reducing surfaces of the horizontal. rolls. The housings 3 have secured thereto the ends of two pairs of rails 6 and 7, between which are arranged the frames carrying the vertical rolls. The bearin s, 8 and 9 for the upper and lower journa s of thevertical roll 5 are connected by and preferably formed integral with the frame 10, the roll journals being held in the bearings is removable caps, 11. The bearings 12 an 13 for the journals of the vertical roll 1, and the bearings 14: and 15 for the shaft 16 employed for driving the roll 4, are formed integral with the vertical frame 17. The journals of theroll 4 are held in their bearings 12 and 13 by removable caps 18 permitting said rolls to be removed lat erally from the frame. The shaft 16 has its upper journal made sufiiciently larger than the lower journal and the intermediate portion of the shaft to permitof the latter being drawn out vertically.

3y reference to Fig. 2, it will be seen that the inner faces of the upper rails or rest bars 6 are formed with ledges 19 on which rest shoulders on the sides of the upper portions of the frames 10 and 17, while the inner faces of the lower rails or guide bars 7 and the sides of the frame extending down between the rails are made plain or without shoulders or rojections so the said frames with the rols and shaft may be drawn upwardly from between the rails. The shaft 20 for rotating the vertical rolls is mounted in bearings 21 on top of the housings 3', and on said shaft the bevel gears 22 and 23 are so mounted as to rotate with the shaft but adapted to move along the same as the rolls are shifted. The gear 28 intermeshes with a bevel gear 2-1 secured on the upper journal of one of the rolls as 5, but as the other roll must be rotated in the reverse direction, it cannot be driven directly from the shaft, as bevel gears so constructed and so arranged on the shaft and journal of roll 1, as to rotate the latter in the proper direction and at the proper speed, would prevent the vertical rolls being adjusted close together. This difliculty is overcome by arranging the bevel gear 22 on the Shaft in the same manner as the gear 23, and causin it to inter-mesh with a similar gear whee 25 on the upper end of the shaft 16, so that the latter will rotate in the same direction as the roll 5. The rotation of the roll 4 in the roper direction, t. (4:, the reverse of that o the roll 5 is effected by intermeshing pinions 26 and 27 secured respectively on the shaft 16 and the roll 4. By properly proportioning the pinions 26 and 27, the proper rotation of the roll can be had even when the gear wheel 25 is made considerably smaller than the gear wheel 24 by pro erly proportioning the dimensions of the lievel gears 22 and'25 or of the pinions 26 and 27 or both. This construction and arrangement of the driving connections from the shaft 20 to the rolls 4 and 5 will permit the latter to be shifted as near to one another as will he required inpractice.

It is characteristic of my improved construction, that the driving mechanism for the rolls is so situated that scale will not lodge therein. And further by suspending the frames carrying the rolls from the upper rails, the bearing surfaces which would be injured by scale, are out of range of the latter. The steps or bearings .for the lower journals of the rolls are protected from scale by enlargements a at the lower ends of the rolls.

I11 order to move the gear wheels 22 and 23 along the shaft and thus keep them in engagement with the corresponding gears 24 and 25, sockets are formed in the'hubs of the gears 24 and 25 for the reception of blocks 29 loosely fitting'in said sockets and provided with studs 30 adapted to engage grooves 31 formed in the hubs of the bevel gears 22 and 23. In order to take up wear one of the walls of the grooves 31 may be formed by rings 32 adjustably mounted on a reduced portion of the hub of the bevel gear, as shown in Fig. 5. The adjustment of the ring,can be effected by any suitable means, as for example by a sleeve 33 screwing onto the hub. In order to lock the ring and sleeve a ring 34 is fitted on the shaft and has a notch engaging the key 35. After the ring 32 has been adjusted the locking ring is secured to the sleeve, as'by bolts 36 or in any other suitable manner.

In lieu',of arranging the countershaft 16 parallel with the roll 4, it may be arranged parallel with the shaft 20 as shown in Fig. 3. In such case, the shaft 16 will be driven througl'f'pinions 26 and 27 from the shaft 20, and the roll 4 will be driven through bevel- gears 22 and 25* by the counter shaft. The bearings for the countershaft 16 are on the ends of brackets 37 on the frame 17*. In this form of mill, the horizontal and vertical rolls are separated such a distance apart as to render desirable the employment of feed rollers to carry the article from one pair of rolls to the other. These feed rollers should be driven at the same rate and in the same direction as the rollers of the main feed table. Heretofore these intermediate rollers 38 have been driven by a series of counter shafts". and beveled pinions 'extending from the driving shaft of the main feed table around one end of the housing for the vertical rolls. In my improved mill, the intermediate rollers 38 are driven by a shaft section 39 which is in alinement with theshaft- 40 of the main feed table and passes inside of one of the end housings 3, as shown in Fig. l.

In the construction shown in Fig. 6, the beveled pinion 22 and the pinion 27 are connected by a neck 41. As both pinions are secured to the shaft 16", this neck is constructed to serve as a journal for the shaft and is mounted in a bearing 42 carried by the frame 17* in which the roll 4 is mounted.

A second bearing 43 for the shaft 16, is formed in an extension 44 from one of the main housings 3, said extension also having a bearing 45 for the driving shaft 20. The hub of the pinion 26" is extended as at 46 and in this extension is formed a reduced portion adapted to serve as a journal which is mounted in a bearing on the upwardly extended portion 37 a of the frame 17*. It will be observed that the bearings for the gearing forming the driving connection from the shaft 20 to the roll 4 are carried by the extension 37 of the frame 17*, so that said gearing will move with the frame 17". In such movement the pinion 26 will slide along the shaft 20 by which the pinion is rotated, and the shaft l6 will slidethrough the bearing 43. In order to prevent any injurious strains it is preferred that the blocks in the bearings 42 and 43 should have their exterior surface-curved and supported in curved seats.

In Fig. 7 the pinion 27" is formed independent of the beveled pinion 22, and is provided with a reduced journal portion mounted in the bearing 43 in the extension 44 of the housing 3. In this arrangement, the pinions 26 and 27 will not move with the frame 17 but that the transmitting shaft 16 will slide through the pinion 27, but will rotate therewith.

As shown in Fig. 8, the transmitting pinions 26 and 27 may be arranged outside of the extension 44 of the housing '3.

I claim herein as my invention: I

1. In a rollingmill, the combination of vertical rolls, frames having bearings for the upper and lower journals of the rolls, housings provided with rest bars passing on opposite sides of the upper portions of the frames and forming supports for. the same, and guide bars secured to'the housings and passing on opposite sides of the lower portions of the-frames for guiding the same.

2. In a rolling mill, the combination of two vertical rolls, a transmitting shaft having a-driving connection to one of said rolls, apower shaft having a driving connection with the other roll and with the transmitting shaft, movable frames having bearings for the upper and lower journals of the rolls formed integraltherewith, and bearings for said transmitting, shaft integral with the frame carrying the roll operated by the transmitting shaft.

3. a rolling mill, the combination of two vertical rolls, a power shaft, bevel gears for transmitting power from the shaft to one of the rolls, a transmitting shaft, bevel gears connecting the power and transmitting shaft and pinions forming a driving connection between the upper journal of the second roll and the transmitting shaft.

4. In a rolling mill, the combination of two vertical rolls, a power shaft, pairs of bevel gears for transmitting motion from the shaft to the rolls, one member of, each pair of gears being keyed to the shaft but movable along the same, the other member being movable with the rolls and having axial sockets, blocks fitting in said sockets and having lugs adapted to engage grooves in the hubs of the gears on the power shaft, said grooves having adjustable side Walls.

5. In a rolling mill, the combination of vertical rolls, a ower shaft, bevel gears connecting one 0 said rolls to the power shaft, a transmitting shaft, bevel gears connecting said transmitting shaft to the other roll, and interineshing pinions mounted respectively on the power and transmitting shafts.

In testimony whereof, I have hereunto set my hand.

JOSEPH FAWELL.

Witnesses OsoAn BRASHEAR, Tnos. B. Joyce.

Copies 0; thia patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C."

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