US1839497A - Means for adjusting straightening rolls - Google Patents

Description

Jan. 5, 1932. E. 1-. PETERSON 1,839,497

MEANS FOR ADJUSTING STRAIGHTENING ROLLS le V. 1926 2 Sheets-Sheet 1 INVENTOR.

A TTORNEY.

Jan 5, 1932.

E. T. PETERSON MEANS FOR ADJUSTING STRAIGHTENING ROLLS Filed Nov. 4, 1926 2 Sheets-Sheet 2 [NI-ENTOR.

Patented Jan. 5, 1932 UNITED STATES PATENT OFFICE EDWARD T. PETERSON, OF READING, PENNSYLVANIA, ASSIGNOB TO BIBDSBORO STEEL FOUNDRY AND MACHINE COMPANY, OF BIRDSBORO, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA.

MEANS FOR ADJUSTING STRAIGHTENING ROLLS Application filed November 4, 1926. Serial No. 146,090.

It has been found difiicult in practice to provide a satisfactory practical means for axially adjusting heavy rolls, such as the rolls employed in heat? machinery for straight/ening steel shapes various kinds, such as rods,

' plates, angle plates, I-beams and the like.

a roll might havemay be eliminated. The

said invention also comprises an adjustable thrust bearing which is adapted to cooperate with the means forefi'ecting axial adjustment of the roll to which the means embodying my inventionis attached. I j v The general object of the invention is to provide means of the character indicated which is simple in construction, which may be readily manipulated, and which is eflicient for the purpose for which it is intended.

It also is an object of the invention to provide a novel construction of means for efiecting axial adjustment of rolls, whereby any one of a plurality of rolls may be placed in proper relation with respect to the other rolls of the same series or an opposing cooperating series.

I have shown the invention as applied to the rolls of-a straightening machine comprising two sets of rolls arranged in planes which are in substantial parallel relation to each other. 7 Each set'may include as many rolls as may be desired or as may be found to be practical.

I have not undertaken at this time to point out all of the advantages incident to the invention, because such other advantages as may be incident thereto will be ointed out in the detailed description thereo which follows, or will become apparent from such description.

In order that the invention may be readily understood ;and its many factors of practical advantage understood reference may be had to the accompanying drawings in which I have illustrated one form of a convenient embodiment of the invention as applied to the heavy rolls of a machine adapted for use in the straightening of steel shapes of various kinds.

In the drawings:

Fig. 1 is a view in vertical transverse section of a machine embodying the" invention, the rolls and certain other parts of the machine being shown in elevation;

Fig. 2 is a view in side elevation of a fragmentary portion of a machine embodying the invention, one roll in each set being shown in end elevation;

Fig. 3 is a horizontal sectional view taken on the line 3-3 of Fig. 1, and showing the means embodying my invention;

Fig. 4; is a vertical sectional view taken on the line 4-4 of Fig. 3.; and

Fig. 5 is a similarview taken on the line 55 of Fig. 3.

Referring to the drawings, 1 and 2 respectively designate as a whole the opposite sides of the frame of a straightening machine provided with bearings in which the journals 3 and 4 of the rotatable rolls 5' are mounted. The journals 3 terminate in head portions 6 which in effect form flanges projecting from the ends of thesaid journals, as is clearly indicated in Figs. 1 and 3. of the drawings. The journals 3 are mounted in bearings 10 which are provided withlinings 11 upon their lower and upper sides, with which the said journals contact. Inward movement of the linings 11 with respect to the bearings 10 is limited by flanges 12 which contact with shoulders at the outer ends of the bearings 10.

The bearings 10 are slidably mounted in openings within the frame 1, as is clearly indicated in Fig. 1 of the drawings.

As the devices or means embodying my invention which are associated with the respective rolls are all of the same construction the remaining portion of the description will be directed to a single one of the devices and will be written in the singular number.

The opposite sides of the bearing 10 and of the lining 11 thereof extend upwardly upon opposite sides of the journal 3 to points about half way around the said journal. The bearing 10 is provided with an outwardly projecting portion which is substantially semi-circular in cross section. The said extension extends upwardly and terminates at 16, as indicated in Fig. 1. The upper end portion of the said projection is shouldered, as indicated at 17. cover 18 is provided for cooperation with the projection 15. The outer lower end of said cover is likewise shouldered and is complementary to the upper end portion of the projection 15, so that the two edges or ends fit together, as is clearly shown in Fig. 1. The cover 18 is securely held to the part 15 by the bolts 19. The inner end or edge of the cover 18 is provided with a degpnding flange 20 to the outer side of which (t e term outer being used with respect to the machine as a whole) a liner 21 is secured by means of screws 22. This liner is of half circular formation and fits against the inner side of the upper half portion of the head 6 of the journal 3. The lower half portion of the said head fits against the outer end of the lining 11 and the flange 12. It will be noted that the plane of the surface of Q the outer end of the bearing 11 and the flange 12 is coincident with that of the outer plane of the semi-circular liner 21, previously referred to.

The projection 15 is provided with a screwthreaded opening 25,'the center of which is in axial alinement with the roll to which the means embodying my invention is attached. A member-27 is provided with an enlarged ex-' ternal screw-threaded end portion 28 which is in screw-threaded engagement with the screw-threaded opening 25. Inward adjustment of the member 27 is limited by a flange at 30 which is adapted to engage with the outer side of the upper portion of the projection 15 adjacent the screw-threaded opening 25. The member 27 is provided with an axial opening 31 therethrough, the inner end of which is enlarged, as indicated at 33. The interior surface of the enlarged portion is screw-threaded. A cylindrical rod 35 is mounted within the opening 31 and is provided with an externally screw-threaded head 36 upon its inner end. The 'threadsof the head are in engagement with the threads of the enlarged opening 33 at the inner end of the axial opening 31. Preferably the surface of the inner end of the head 36 is of spherical shape and is seated within a correspondingly shaped recess in a bearingdisk 40 provided upon its inner side with a circular seat 41 within which is mounted a circular flatbearing 42 which is seated against the outer side of the head 6. Adjustment of the thrust rod 35 with respect to the member 27 may be effected by rotating'the same, a squared end 45 being provided for that purpose. After having been adjusted axially to such extent as may be desired the thrust rod 35 is adapted to be locked in position by the lock or binding -nut46. The thrust rod 35 may be adjusted inwardly from the position shown in Fig. 1 of the drawings by rotating the same in the proper direction. After having been adjusted inwardlv, it may be thereafter adjusted outwardly by rotating the same in the opposite direction.

The outwardly extending member 27 is externally screw-threaded, as shown, and extends through an opening 50 provided in a vertical web 51 formed upon the outer end of a bracket 52 which is secured by means of bolts 53 to the frame 1. In the construction as shown the opening50 is open at its top side or end, so that the member 27 may be readily placed therein and removed therefrom. If desired, a ring 54 may be mounted upon the member 27 within the opening 50.

For the purpose of adjusting the member 27 axially I have provided adjusting nuts 56 and 57 which engage the external screwthreads upon the said member upon opposite sides of the vertical web 51. Assuming that it might be necessary to adjust the member 27 outwardly together with the bearing 10 and the projection thereon, such adjustment might be effected by first adjusting the.

nut .57 inwardly the desired distance and thereafter turning the nut 56 to adjust the same in a like direction. The web 51 being stationary it is quite clear that the member 27 must move outwardly. Such outward movement causes a snnilar movement of the bearing 10 and outward movement of the latter causes corresponding axial movement of the roll 5, due to the fact that the outer end of the lining 11 of the bearing contacts with the inner side of the lower half portion of the head 6 upon the outer end of the journal 3.

made, the nut 57 is then adjusted in a like manner. The said nut being in contact with the inner side of the stationary web 51,'it is apparent that the member 27 must move inwardly. Such inward movement of the member 27 causes alike inward movement of the bearing 10. A like inward movement of the roll 5 is also caused because of the contact of the inner end of the thrust rod 35 with the bearing member or block 40 which is seated against the outer s'ideof the head 6 upon the journal 3.

' To those skilled in the art the necessity for adjustment of the rolls 5 is well understood. When the strai htening rolls are used for straightening I- eams, for instance, the said rolls are provided with grooves to receive the flanges of such beams. One purpose, therefore, of providing straightening meansis to adjust the respective rolls of each set so as to bring the grooves in the rolls those of the other in order to bring the grooves into registry with each other.

It will be understood that in the use of machines of the character indicated the rolls are subjected to very great pressure or strains axiallythereof. As a result, there is or is apt to be Wear such as to permit axial play which is objectionable. It is apparent that such play may be eliminated by proper adjustment of the thrust rod 35.

The interposed bearing block 40, previously referred to, is supported in position by means of the pins 59, the outer end portions of which are mounted in openings in the outwardly extending projection 15. The inner ends thereof are reduced in size and engage openings in the said bearing member 40. The journal 4 of each roll is mounted in bearings mounted in openings 61 in the side frame 2 of the machine.

It will be seen that by my invention I have provided means whereby each roll of a straightening or similar machine may be axially adjusted independently of every other roll, and that the said adjusting means comprises means whereby wear upon the bearing port-ions due to axial thrust of the rolls may be taken up. In other words, axial play of the rolls may be eliminated or prevented. It will also be seen that by the means embodying my invention Iam enabled to effect axial adjustment of the rolls quickly and with a minimum of trouble and delay.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. In a machine of the character described, the combination of a roll having journals, bearings within which the said journals are mounted, one of the said bearings being provided with means for eflecting interlocking of the same with the journal mounted therein, said means includin a thrust member located in alinement wit the axis of said roll and adjustable upon its support in the direction of the said axis, a support for said thrust member, said support being supported by the said bearing, and means for adjusting said support to effect lengthwise adjustments of said roll and bearing and simultaneous equal movements of said thrust member in the same direction.

2. Means for efli'ecting axial adjustment of alinement with the said roll, a member.

mounted in said opening and extending outwardly therefrom, a stationary bracket having an opening through which said member extends, adjustable bearing means interposed between the said member and the outer end of the adjacent journal of the said roll,

and means whereby the said member may be adjusted relatively to the said stationary bracket to thereby efl'ect axial adjustment of the said roll.

3. Means for effecting axial adjustment of a roll of a straightening machine comprising a bearing for one of the journals of said roll, which bearing is provided with an outwardly and upwardly extending projection having an opening in axial alinement with the said roll, a member mounted in said opening and extending outwardly from said projection, the said member having an axial opening therethrough, the inner end of which is enlarged and is screw-threaded, a bearing thrust rod mounted in said axial opening, a

bearing block interposed between the inner end of the said thrust rod. and the outer end of the adjacent journal, the said bearing block contacting with the inner end of the said thrust rod, a stationary bracket having an opening through which the said member extends, adjusting nuts having screw-threaded engagement with external screw-threads upon the said member, one of the said adj usting nuts being located outside of the said bracket and the other being located inside thereof, whereby upon adjustment of the said nuts axial adjustment of the said member may be effected to cause axial adjustment of the said roll. j

4. In a machine of the character described, the combination of a roll having journals, bearings for the said journals, one of which bearings is provided with an outwardly and upwardly extending projection having t e' opening in alinement with the axis 0 said roll, and means for interlocking the said bearing with the said journal to prevent relative axial movement between the two, which means comprises an axially adjustable thrust bearing.

5. In a machine of the character described, the combination of a roll having journals at its opposite ends, one of which terminates at its outer end in a flanged head, bearings for the said journals, the bearing for the journal having a flanged head bein provided with an outwardly extending projection having an opening therein in alinement with the said roll, a lining for the said bearing, the

outer end of which is provided with an outwardly extending flange, the inner side of which is in engagement with the outer end of the said bearing and the outer side of which is in engagement with the inner side of the flange of the said head, a member mounted within the said opening and extending out wardly from the said projection, said member being externally screw-threaded, a stationary bracket having a web portion provided with an opening through which the said member extends, and the said. member being provided with an axial opening extending therethrough, the inner end of which is enlarged and is screw-threaded, an axially adjustable thrust bearing rod mounted in said axlal opening, said rod havin a head located within the enlarged portion 0 the axial open I ing through said member and havin screwthreaded engagement therewith, a earing block interposed between the outer end of the headed journal and the inner end of the said thrust rod, and means whereby the said outwardly extending member may be axially adjusted to effect axial adjustment thereof, togeflher with the said thrust rod and the said r0 6. In a machine of the character described, the combination of a roll having journals, bearings for said journals, one of said bearings being provided with an outwardly and upwardly extending portion which terminates above the axis of the said journal, the said portion having an opening extending therethrough in alinement with the am's of the said journal, and means provided on the said outwardly and upwardly extending portion for adj ustably interlocking the said bearings with the said journal, said means comprising a thrust bearing mounted in said opening.

In testimony that I claim the foregoing as my invention, I have hereunto signed my name this 29th day of October, A. D. 1926.

. EDWARD 'l. PETERSON.

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