US1762412A - Journal bearing - Google Patents

Description

June 10, 1930. J, F QQQNNQR 1,762,412

JOURNAL BEARING Filed Sept. 28. 1927 r llllllll'/r Patented June 19,1930 f NUNrnezo STATES,

JOHN-1?. OCONNOR, 0F CHICAGO, ILLINOIS, ASSIGNOB T0 PATENT OFI-IcaA W. H. EINER, INC., 0l'

emanato, ILLINOIS, A CORPORATION or DELAWARE e i JOURNAL BEARING Application l:tiled September 28, 1927. Serial No. 222,416.'

This invention relates to journal bearings.

An object of the invention is to provide an yantifriction4 arrangement, more particularly adapted for use in connection with a journal 5 box and a` journal of a railway car, and

l wherein thejournal box and journal are provided with suitable conical race members between which are interposed spaced annular series of opposite disposed conical rollers in conjunction with retaining means for said rollers having spherical surfaces adapted to engage spherical surfaces ormed at the oppositeends of said rollers whereby the latter are at all times maintained in proper alignment. I

Other and further objects of the invention will more clearly appear from the description and claims hereinafter following.

Inthe drawings forming a part ofthis specication, Figure 1 is aside elevational I view of a fragment of a railway car truck showing a pedestal` member and a journal box, embodying the invention, mounted in said pedestal member. Figure 2 is a transverse veltical sectional view corresponding to the line 2 2 of Figure 1. Figure 3' is a. vertical sectional view, `corresponding substantially to the line 3-3 of Figure 2. And Figure 4 is an'enlarged detail view of a roller. As shown in the drawing, 10 represents a fragment ofl the body portion of the car truck and llrepresents a common type of pedestal member mounted thereon, having the usual spaced .jaws between which is slidably disposed a journal box 12 embodying the A invention.

end of an equalizer bar which bears upon the top of the journal box 12 and transmits the load from-,the frame of the truck to the top of the journal box whichin'turn transmits l Y Vthe load to the journal. j 'v n ,"The inventioubroadl contemplates the' lprovision Y01E a journal x members B',.con1cal rollers C, and retaining aligning means D'. t

' `strap 22. The journal l5 is formed to pro- ,nieans, and has its circumferential periphery The numeral '13' indicates .one

A, conical race l' The top Wall of the journal box A is provided 4with spaced flanges 19-,'19, and an equalizer seat 2() adapted to be engaged by the rooved end of the equalizer bar 13. The si e walls of the journal box A are provided with spaced flanges indicated at 21-21 which lit upon o posite sides of the' pedestal box of the peli estal `member to provide guides, the journal box A being retained in its position between the jaws of the pedestal member by the usual vide an annular shoulder 23, a cylindrical portion 24, anda reduced threaded end portion 25.

The race members B comprise a sleeve 26 mounted upon the cylindrical portion 24 upon the journal 15, and the two spaced rings 27 and 28 associated with the journal box. The sleeve 26 is slidably but non-rotatably mounted upon the journal 15 by any suitable formed to provide a cylindrical portion 29,v and outwardly tapering cone surfaces 30 and 31, the'opposite ends o? the sleeves being reduced to provide cylindrical portions indi-. cated at 32. The ring 28 is provided withl a conical surface 33 adapted to co-operate withv `the conical ortion 31 of the sleeve 26, and

said ring is 'sposed in theannular recess 14 of the journal box A in such manner as to bear upon an annular shoulder 34 formed ad- 'acent the rear wall of the journal box as best shown in Figure 2.l The race ring' 27 is of a character similar to the race ring 28 but oppositely disposed with reference there- Y j to, and mounted in the recess 14 so as to be i0 capable of some axial movement for pur oses of adjustment as hereinafter referre tof The ring 27 is provided with a tapered surface 35 adapted to cogoperate' with the conical surface 30 of the sleeve 26. l

I The conical rollers C are arranged in two annular series 36 and`37, the series 36 being adapted to co-operate wit'hthe surfaces 30 and 35 of the ring 27 and sleeve 26, and the annular series 37 being adapted to co-operate with the surfaces 3l and 33 of the sleeve and ring 28. The annular series of rollers 36 and 37 are arranged in spaced relation, and each rollerof each series upon adjacent ends is formed to provide a convex spherical surface 38, the spherical surfaces of the inner j ends of the rollers being similar in character, and adapted to co-operate with the retaining and aligning meansD. The outer or smaller end of each roller of each annular series of rollers is formed to provide a concave spherical surface 380, the spherical sur'- faces 380 of the rollers also being adapted to co-operate with the retaining and aligning means D.

The retaining and aligning means D com prise a central element 39 and end elements 40 and 41. The central element 39 is disposed between the yinner ends of the two annular series of rollers, and includes an annular web 42 of somewhat greater diameter than the cylindrical portion 29 of the sleeve 26, so as to'be spaced therefrom, and formed upon the lweb 42 are spaced angularly disposed flanges 43 and 44, said flanges diverging toward their outer ends and being connected by laterally extending braces. 'Each of the flanges 43 and 44 is so formed as to'provide a concave spherical bearing surface 45 of such curvature as to conform to the curvature of the convex spherical surfaces 38 of the adjacent annular series of rollers C', said spherical surfaces being so formed that the inner end Iof each of,

Vthe rollers C is adapted tofit the spherical surface 45 provided by each of the flanges 43 and 44, it being noted that the retaining member 39 is supported by the rollers C in spaced relation with reference to the sleeve 26 on the journal. The retaining members 41 and 410 are exactly similar,v except for their opposite disposition. The member 41 is in the form of a ring.. which fitsabout the reduced end portion 32 of the sleeve 26 and is spaced therefrom, the surface of \the ring 41 being formed with a convex spherical surface 47 corresponding in ,curva-ture to the spherical surfacev 45 of the flange :of the central member 39, the convex spherical surface 47 being of such curvature as to fit the concave spherical surface 380 of each of the rollers of the annularv series 37 The surface of the member 41 opposite to the 'spherical surface is provided with an 'annular groove corresponding with an annular groove formed in a collar 48 mounted upon the jourber 41 and collar 48, which balls maintain the member 41 inthe desired position and reduce friction between the parts. The member 410 at theouter ends of the annular series of rollers 36, is oppositely disposed with reference to the member 41 `but otherwise is identical therewith, having a convex spherical surface adapted for co-op'eration with the concave spherical surfaces of the ends of the rollers of the series `36. A series of balls 50 is interposed betweenthe outer face of the member 410 and a collar 51 on theA journal -15, the balls being disposed in an nular grooves in the adjacent surfaces of said members. journal by means of a lock nut 52,.which serves to maintain the various parts of the arrangement in assembled condition with reference. to the journal. A cover 53-is provided for the journal box having a vflange 54 adapted to be secured-to the journal box by bolts 55, there being a plurality of shims 56 interposed between the flange 54 and the adjacent edge ofthe journal box. Thecover 53 is'alsol provided with an annular flange 57 which telescopieally fits within the recess 14 and bears upon vthe race ring 27. When itl is 'desired to adjust the arrangement, `one or more 'of the shims 56 is removed, bringing causing corresponding movement of the sleeve and annular series of rollers to the right, as viewed 1n F1gure 2, thereby-adjustf ing the various elements with reference to c'ach other from the .outer end of the journal when thesame is in position in the journal box.

By the above described arrangement, it will be appreciated that the spherical surfaces upon the retaining members,39, 41, and 410, eo-operating with the spherical surfaces upon the rollers D, will have the effect of positively maintaining saidv rollers in alignment laterally as Well as in other directions.

-The retaining members 39, 41 and 410 move with the rollers, while'the rollers rotate upon their individual axes with reference to said members. The member 39 is carried by the rollers and hence develops no friction with reference to the sleeve on the journal, and the end members 41 and 410 are supported by the anti-friction balls 49 and 50 so that fric-v tion between the end members is reduced to the minimum.

While I have hereinshown arid described -What I consider the preferred manner of car.- Arymg out the invention, the same -is merely les . rollers;

faces the combination with relatively ,movable race members, providing oppositely disposed conij cal bearin surfaces; of an annular series of conical ro 1ers co-operating with each of the oppositely disposed bearing surfaces of said race members, said annular series of rollers being spaced apart, the adjacent inner ends of said rollers being provided with oppositely disposed convex spherical surfaces, and the outer ends of each of said rollers being provided with a concave spherical surface; re-

taining means interposed between the inner .ends of the annular series of rollers, said retaining means having concave hearing sur-v faces engageable with the convex bearing surfaces of the adjacent ends of said rollers; and additional retaining means associated with the outer ends of each annular series ofl rollers and being provided with convex.

spherical bearing surfaces engageable with the concave spherical bearlng surfaces of said rollers; and anti-friction means for support-L ing said additional retaining means in operative condition with reference to said rollers.

2. In a structure of the character de.- scribed, the combination with relatively m0v able race members,providin`g oppositely disposed conical bearing surfaces; of an annular series of conical rollers co-operating with each of the oppositely disposed bearing surof said race members, said annular series of rollers being spaced apart, the adjacent inner ends of said rollers being provided with oppositely disposed convex spherical surfaces, and the outer ends of each of said rollers being provided with a concave spherical surface; retainingmeans interposed between the inner ends of the annular series of rollers, bearing bearing said" retaining means having concave surfaces engageable with the convex surfaces of the adjacent ends of said additonal retaining means associated with the outer ends of each annular series of rollers and being Y provided with convex spherical bearing surfaces engageable with the concave sphericalbearing surfaces; and means-for adjusting the racemembers and rollers with reference to each other.

3. In a structure of the character described, the combination with a journal, box and a journal; of a sleeve mounted on said journal andl provided with oppositely' disposed cone surfaces; spaced race rings associated Vwith said journal box and provided with bearing surfaces co-operating with the conical lsurfaces of said sleeve to provide raceways for-conical rollers; twoannular series of conical rollers inter osedbetweensaid race members, said serieso same'direction and arranged in facing relation; a retainer disposed etween the annu- ,in'g annular raceways lar series of rollers and having op ositel disposed spherical surfaces engagea le wit the spherical end surfaces of said rollers; and additional retaining rings arranged at the outer ends of said rollers and provided with convex spherical bearing surfaces adapted to co-operate with the conca-ve spherical surfaces of the ends of said rollers. l Y

4.1In a structure of the character described, the combination with a journal box and a journal; of a sleeve mounted on said journal and provided with oppositely disL posed cone surfaces; spaced race rings associated with said journal box and provided with bearin surfaces co-operating with the conical sur aces of said sleeve to provide race-ways for conical rollers; two annular series of conical rollers interposed between 4 faces a'dapted to co-operate with the concave sphericalsurfaces of the ends of said rollers, said additional; retaining means being supported `by anti-friction elements, an said first named retaining means being carriedby said rollers.

'5; In a journal bearing for railway cars the combination with a journal box provided with annular spaced raceways; of an axle rotatable within said 'ournal box, said axle being provided with a caring sleeve presentopposed to said first named raceways; two annular series of antifriction rollers interposed between said journalbox and axle race-ways; spacing means for said two series of rollers; a retaining ring having shouldered engagement with the axle; a second retaining ring at the outer end of the axle, said retaining rings embracing the two series of rollers; and means for adjusting said last named retaining ring lengthwise of the axle to compensate for wear of the ends of the rollers.

6. In a journal bearing for railway cars, the combination with a journal box provided with annular spaced raceways; of an axle rotatable within said journal box, said axle being provided with a bearing lsleeve resenting annularraceways opposed to said rst named raceways; two annular ,series of anti-friction rollers interposed between said journal box and axle racefways; spacing means between said rollers engaging the inner ends thereof; a retaining ring having shouldered engage- 4 v e v a 1,762,412

. ment with the axle; a. second retaining ring lat the outer end of the axle; bearing rings engagin the outer ends of the rollers; antifriction all bearing Aelements interposed bel 5 tween each of said retainingrings and the lli corresponding bearing` ring; and means for adjusting the retaining ring at theouter end of the axle lengthwise thereof, to take up for endwise wear of the rollers and cooperating lo parts., l i

In witness that I claim the foregoing I have hereunto subscribed my name this 24th day of September, 1927.

. v JOHN F. OCONNOR.

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