US1630026A - Journal box - Google Patents

Description

May 24 1927.

J. H. REEDY JOURNAL Box Filed Aus. 8,] 1924 2 Sheets-Sheet 1 ATTFAEKS.

May 24,1927. 1,630,026

l J. H. REr-:DY

JOURNAL BOX Filed A112. 8. 1924 2 Sheets-Sheet 2 f UaNlf'r ED" S TAT ES COMPANY, OIE*` HAMILTON, OHIO, A CORPORATION OF OHIO. i

JoUnNALfBox.

Application ined Agast s, i924. seriailNe. 730.799.

"33V invention relates to an. adjustable,

` water-cooled journal lbearing having bearing surfaces that are adjustable to accommodate shafts of varying dimensions and-adjustable toV compensate for vwear of the shaft or of the bearing surfaces of the journal box. Furthermore, by means of theseveral adjustyments possible in `1ny invention the shaftl may be kept in perfect alignment .with other elements of the machine, to which it isa'pplied and wear in them coinpensateclvrfor from time totime by re-adjustments inthe journal box. Y l f 'i It is also myobjcct to provide an adjustable means for locating the journal box iny a.

desired place and @Specially where a sliding or shifting journal is required tovperm'it close contact with the runways in which the' journal operates. l

My invention as shown in the drawings and described in the specifications is mainly intended for use in a webr calender'machine commonly used in paper `millsy for finishing and surfacing paper, but I do not wish this to be 'construed to limit'my invention to this particular use, and desire the full benefit and' protection under `the laws` ofthe VUnited States, for. its use in any vother mechanism where such a journal maybe desirable and practical... In further of `my. invention and its usefpermit me" to explain that a web calender machine isra device for the purpose of finishing the surfaces of certain paper' and providing it with a highlyV vsmooth rand vgloosy surface suitable for certain classes` ofV printing to be ,done thereon. This is accomplished by passing the paper between a series of rolls stacked one above the other and rotatably journaledjin a framework. n j l These rolls `are made of chilled Cast iron and have highly' polished surfaces and their "will show. considerable wear, 'and the resultant play in the journal will throw the `and more detailedv description roll out of alignment. VIn calenders now in use these journal bearings are either perma- `nently fixed in the journal and not ycapable 'of adjustment, in which' case the entire journal box hasto be` removed in order to resurface `these bearings, or where the bearings are"adjustable,l they are difficult of'access andinfeither case require not only a. great Vdeal of labor and .time for making these repairs, besides necessitating the shutting downl offthe calender during the timefrepairs of this kind are made. In viewof the `fact that the rolls run in contact .and thus j y 1,630,026 e PATENT OFFICE.

JOHN H. vREEDY, OF HAMILTON; OHIO,ASSIGNOR TO THE CHAMPION COATED FABER in` opposite directions, the ltendency is to .wear one side of the journal more than the dering machines.

e It is vthe purpose of my invention to permit. adjustments of bearing surfaces of the journals to ybe made effectively and rapidly eration. e i i The wear in the rolls themselves moreover, will at some time-necessitate the refinishing `and, if'ydesired, while the: machine ism opof their surfaces and'in this process it is ob` vious that the circumferential dimensions of the roll will bereducechso thatfin ,order that the rolls may be allowed to vbear one upon the other, the journal boxes must be compactly constructed, thus` permitting them to be closely stackedv in the framework. In my invention I have accomplished this desired degree of compactness thus assuring long useand repeated possibility of refinishing the rolls before replacement byV new-rolls becomes necessary.

As the above stated calenders of this type are necessarily run at'high speed to accomplish the best results in the finished product and the matter of cooling and lubricating,

the bearings under such conditions become aV factor inv the life of these-bearingsand in the economy of operation of the machine. Y

It is,etherefore, the purpose of my invention to provide a water cooling system by means of which water is circulated under pressure through channels adjacent to the main-bearing surfaces. Furthermore, the construction of the housing of'my journal boxis designed to permit theV shaft ends of the rolls to run in an oil bath, kthe oil being suppliedbymeans of a pump to the upper- Vmost journal and passed 'byk gravityto each Btl Sii

line 3 3 inFigure 1.

Figure et is ak perspective view of one of the.adjustablebearing blocks, and its water acket.

Y Figure 5 is a perspective view of the cam used in adjusting the bearing block shown in Figure 4p Figure 6 isa fractional elevation of the roll side of the journal box housing showing theoil gate, employed to prevent the oil from creeping along the shaft land' out of the housing. Y

i' Referring now to the drawings in detail7 I have shown the Yframe 1. of a calendering machine which is provided with 'verticalv runways @constructed in the sidesofa' slot running froiii'top to bottom `of the frame.

The journal box 3 has ways 4 fashioned in the end walls of the journal housing 5, which operate against the runways 2 and hold the journal slidably in the frame. Vertical gui'deways 6 on the ends ofthe journal box housing and gibs 7 bolted to the housing opposite Ito the guideways engage the framework and serve to holdfthe journal box in the lftanjie of the machine. Adjustment screws 8 are provided in the journal housing and extending through the ways in the end walls thereof serve in taking up the wear between tlie runways in the frame and the ways on the housing.

The journal box housing 5 is composed of a vrectangular lbox-like vportion 9 having upper and . lower walls 10 and 11, end walls 12 and 13, and a rear wall 14 and is open at the front. The rear wall has an opening 15 lto admit the shaft end of a roll. A cover 1G is provided for the front of the housing and is secured to the housing by means of the Abolts 17. The cover is provided with openings 18 to permit access to the housing for minor repairs and inspection. said openings being closed by means of plates 19 held in place by the bolts Q0 when the machine is in operation.

Dispose-d within the housing are the bea ring blocks 21 constructed with walls enclosing a cavity 22 thus forming a water jacket for cooling the bearing by means ofthe circulation'of watei therein. The inner wall :23 of the bearing block is fashioned with a semieircular face and provided with a bearing sui-face Qshaving oil grooves 25 to admit oil betweenthe shaft and the bearing. In the front wall of the bearingmblock are two Figure 2 is a horizontal longitudinal,sec-l `'and are provided with links offlexible tubing 29 connecting the outlet of the block of one journal with the inlet of that next bellow.

rllhe bearing blocks aie furthermore provided with channels() runninglengthwise of the-blocks and fashioned to receive and fcontact with the cams 31, said cams being fashioned into shafts 32 at their ends which shafts are jouriialed inl openings 33 in the housing and 3l in the cover respectively. The cains are rotatably held in the channels of the bearing blocks by means of the plates which are attached to the bearing blocks by means of screws. The outer end of the cam .shaft is squared to receive a crank or wrench necessary to operate the cams. The cam shafts extend through the cover of the housing and by rotating the cams as desired the bearing blocks may be adjusted into contact with the shaft of the roll. When the desired `adjustment is obtained the cam is locked in place by means of a set screw 36 in the cover of the journal oi by a pawl and ratchet arrangen'ient on the cani shaft.

A bronze bearing block is inserted in the upper part of the housing and allowed to rest upon the shaft end of the roll. An oblong opening 38 is provided in the upper wall of the housing by means of which oil is supplied to the housing. The lower wall of the housing is 4fashioned into a semicircular depiessioii along the median vline into which this oil is 4held at a sufficient height to provide an oil bath for the shaft end of the .calender roll. Holes drilled in the higher portionsof the lower wall of the housing .permit the oil to overflow and `drip through the opening 38 of the housing bclow, and finally into a. reservoir at ythe hase of the machine from whence it is returned to the topinost journal by means of a pump. The bronze 'bearing block 37 besides serving as an additional bearing surface for the Vsha-ft end ,of the calender roll, also serves to partly close the opening 3S against the intrusion of foreign mattei', into the journal box.

The cover of the housing furthermore. proif'ided with a central opening 3f) threaded t0 -receive the threaded shaft Ll() of the end thrust bearing 4l. The iniiei end of the shaft 40 is provided with a flanged head l2 having atlange i3 fashioned to support the ball race of the end thrust bearing. The outer end of the shaft is squared to i'eceive a crank by means of which the shaft is turne-d and the thrust bearing brought into contact with the end of the shaft of the calender i'oll. lVhen the desired adjustment is obtained, the bearing shaft is llt) `iooded` lubrication of the shaft end of the calender roll and its relation to the location of the opening in the rear of the housing for purpose of admitting the shaft end, must of necessity be such as to nullify its intended purpose of retaining a necessary quantity of the oil, unless some means is provided to close the gap which remains between the shaft and the rim of the openingv iny the housing. For thispurpose I have devised an oil gate 47 which is held in a mortise in the outer surface of the rear wall of the hous ing by means of bolts. f

The fixed portion 48 of thetoil gate is shaped into a pocket 49Vin the bottom of which `isa flat bow spring 50. A wiperV 51 having a semicircular bearing surface to conform to the circumference of the shaft of the calender roll is inserted into the pocket 49 and is held in contact with the shaft end of the calender roll by the pressure of the spring 50. By this means any oil which may creep along the shaft is diverted and returned back into the journal box housing. i

In practical operation, when the bearing` in the journal becomes sufficiently worn to require realignment of the calender roll, this `may be done by rotating one or both of the cams with the*k aid of a crank or wrench from f the outside of the journal housing, likewise any inequality in the wear of the bearings may bei compensated in this manner.

Excessive end play may be compensated by a slight readjustment of the end thrust bearing in a similar manner, and without disturbing the journal box or its contents. i

Repairs or replacements in the end thrust bearing maybe made by simply removing one or both of the plates covering the openings in the cover of the journal box, while in case of repairs or renewal of the bearing blocks and their machanism the cover of the housing may be removed first .disconnecting `the water supply pipes, when the bearing which said blocks may be adjusted into de-` sired contact with said rotating shaft, means for connecting misallgnm-ent of said shaft by operation of said cams, an oil-tight housing enclosingall of said bearings `and parts and providing Hooded lubrication of the moving parts contained therein, an oil gate provided at the open end of said housing having a wiper in contact with said rotating shaft, and suitable means for holding said. wiper in contact with said shaft and retaining the lubricant within the housing.

2. In a calender machine, a journal box for -calender'rolls comprising van oilltight housing, a plurality of lateral bearing blocks, bearing surfaces on said bearing blocks, said bearing blocks beingprovided housing, bearing surfaces on said bearing blocks capable ofholding the shaft of a calender roll in jou-rnaled suspension, recesses in said blocks, cams operating in saidsrecesses by means of which said blocks are brought and held in contact with the shaftV journaled therein, portions of said bearing blocks being fashioned into water jackets, meansfor supplying and circulating water in said water jackets for cooling said bearings, means for adjusting and controlling said cams externally of ,the housing of said journal box, means for preventing leakage of Y oil supplies from said housing, and means for locking said cams 1n a desired adjustment.

4. In a calendering machine, wherein a series of rolls rest on eachother, guides for journal boxes, boxes in the guides, and engaging the spindles of the rolls, said boxes having bearing blocks therein, adjustable laterally within the boxes, said blocks being formed with water passages, means opening into the passages 'through the housings for supplying water thereto, said means being interconnected in vertical series, so as to set up lines of flow of cooling water through the bearing blocks of the series.

5. A journal for the spindle of a calender roll comprising a journal box having bear ing blocks therein adjustable laterally within the box, said blocks being formed with water passages, means for supplying waterto said passages, and a supporting member for the box provided with a vertically allgning VJOHN H. REEDY

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