US1313466A - Francis e - Google Patents

Description

F. E. BUX'TON.

JOURNAL BEARING.

APPLICATION FILED JUNE 22. 1918.

Patented Aug. 19, 1919.

3 SHEETS-SHEET 1.

fi' F5: INVENTOR." Q) N If E. Hui/011.;

-b- 7 BY M75" A TTORNEY.

'rnlz toLuMnm PL NQGRAPH cm, \VASHINdTON. n. c.

F. E. BUXTONL JOURNAL BEARING.

APPLlCATlQN FILED JUNE 22. I9l8- T1 ,3 1 3,466 Patented Aug. 19, 1919.

3 SHEETSSHEET 2- INVENTOR.

' f? 523mb),-

A TTORNE Y.

THE COLUMBIA PLANODRAPH co.. WASHlNuToN, D. C.

- UNITED .sTATi s PATENT OFFICE.

FRANCIS BUXTONQOF INDIANAPOLIS, INDIANA.

To all whom it may concern. I

cision.

My present inventionhas special reference to heavy duty bearings, wherein the exact alinement of a supported journal or shaft is maintained, the specific feature being the means provided to automatically and posi tively cause the bearings to continuously creep or roll under the revolving journal for the purpose of distributingthe wear evenly within the sleeves and also to cause I the lower section of the same to continuously pass through a head of oil. 4

Another object is to provide a justifying bearing having a plurality ofinner duplicate tapered-sleeves supported by a suitable outer sleeve in a manner that the reduced ends of the inner sleevesmay be drawn together for the purpose of forming a complete wear compensating bearing, relating in particular to a universal type. r Y

In the accompanying drawings, forminga part of this specification,the manner and the means provided to accomplish the desideratum 1s most clearly shown, in which: Fig-.

ure 1 is an end elevation of the bearing, hav

, ing certain parts broken away to show the reducing-drive worms which are mounted therein. Fig. 2 is a side view of the complete bearing, taken partly in section on-the line A--B of Fig. 1. Fig. 3 is an inner end elevation of one ofthe bearing-cage members, the bearing sleeve having been removed and thee-age shown at a. one-eighth turn relative to Fig. 2. Fig. 418 a side elevation of the cage member and also showing, in

. diametrical section, its oil retaining gland and-the position of its filber ring. Fig. 5 is a side elevation of one of the bearing sleeves, the lower portion being shownas broken away and shown in section. Fig. 6

is sacred @leva-tionof the sleeve,

JOURNAL-BEARING.

Specification of Letters ZPatent. PatentedAug. 19,1919.

Application filed June 1918. Serial No. 241,328. i

the lower half being broken away and shown in section, as on the line CD of Fig. 7. Fig. 7 is aside elevation of the container sleeve, the lower half being shown in section to show the means provided to support the bearing sleeves, also showin the position of a pocket thatcarries an elliptical shaped transverse-cut-worm-gear. Fig. 8 is a side elevation, partly in section, of the complete outer casing which is shown partly in elevation, the same having the major part broken away in order to show in section parts of the container sleeve and bearing sleeves, also the internal drive gear. Fig. 9 is a broken portion of certain portions shownin Fig. :8, showing the details of the oil gland closure and other details, the same being in end elevation. Fig. 10 is an enlarged detail view showing certain parts appearing in the left end of Fig. 2. Fig. 11 1s a plan view of a portion of thering locking device. Fig. 12 is an enlarged plan and a projected end elevation of one of the ovoid or double-cone worm gears alone. Fig. 13 is an enlarged detail showing a portion of the bearing sleeve and cage arm, taken as looking at the reduced end. Fig. 14 is an enlarged detail portion of the parts shown in Fig. 13, showing these. parts in side elevation, a portion of the side arm being removed to'more clearly show the series of angle perforations which are disposed in the bearing lining. Fig. 15 is a side elevation of the complete bearing as it would appear assembled in connection witha shaft. Fig l 6 is a plan view of a bro-ken portion of the bearingsleeve, showing same on a greatly enlarged'scale, in order to make clearthe angular weakening slots. Fig. 17 is an end elevation of the bearing assembled. And Fig. 18 is a detail section, as taken on the line E-F of Fig. 16. V

Similar indices denote like parts throughout the several views, the arrows on certain parts indicate the relative direction of rotation of such parts, v I

vThe bearing herein described is carried by a suitable base 1. v The bearing proper comp-rises an outer, relatively stationary casing, which may be of any approved form, which should be farmed in two parts indiqe esllly 2 and. 2;

mediate said grooves 4 a gear portion 5"is" sively, thereby causing the bearing to wear,

. if at all, absolutely true, thereby greatly protracting the life of the bearing and preserving the alinemen-t of the shaft. To further preserve the bearingpro-per it is caused to pass through a head of oil in each revolution, as indicatecl"in'- Fig. 2.

The bearing proper, above referred to,

comprises the bearing sleeves 16, which are formed, which will behereinafter mentioned-.

WVithin the said casingis mounted a revoluble container sleeve, preferably forlnedin two parts, 6 and 6, and thetwopartsare secured together by the screws, 34 and 35.. Intermediate the ends of said container sleeve isformed the diametral flange 9 which slidably fits into the said companion grooves 4. within the casing. The inner wall por-, tions of said container sleeve arereversely tapered, as indicated at 10 in Fig. 7 the same converge toward the center, and intermediate the endsof the containersleeve are provided threaded portions 36, which will be mentioned hereinafter,

Adjacent the longitudinal parting of said sleeve there are provided concentrically located pockets 11in which are mounted suitable doublecut wornrgears 12 in such manner as to freely turn within the sleeve. Said worms are provided with threads 12 that engage with the internal left-hand gear teeth 5. Mounted on the said worm pockets are taper screws 13, which secure the gears 12 in alinement and in revolving position. Secured aroundthe shaft 14, and located be-' tween the worms 12, is a right-hand spiral gear 15, which is secured to the shaft 14 by the screw 15, and it is in meshing gear with the wormteeth 12, to impart motion to the latter. I

It is now; evident that as the shaft 1% is turned, in the direction indicated by the arrows, Figs. 1 and 2, that a transverse rotary movement will be imparted to the worms 12, and then by reason of their lefthand gear connection with the gear 5 carried by the casing, that a greatly reduced but continuous roller motion will be imparted to the bearing mechanism which im'' mediately surround the shaft 14, and this roller motion will be-in the same direction as that of the shaft. 14.

As is well known in practice there is a line of super-pressure-and wear exerted bythe power driven shaft upon the bearing, which when the bearing is stationary soon distorts the inner periphery of the bearing and per Inits the shaft to get out of alineinent, there by greatly hastening the dissolution of hearing. Now by-Inechanically shifting oreausing the bearing proper to creep from under the line of pressure, as in this invention, it is ei ident that all of the surface of the bearing willbe brought 'into service progrescarried with their cages 17, which in turn arerarried' within the tapered walls of the container sleeve 6, all substantially as shown.

The constructiomand operation of the hearing sleeves and the cages, above mentioned,

have beenshown 'and described 'in" Letters Patent No; 1,260,635, issued tome March 26, 1918, and therefore it will not be'necessary to repeat the' sam e in detail in this instance, as in this instance I use practically the same bearing sleeves andcage mechanism, how-.

ever the same isfiinich reduced in relative length, and the same "is duplicated, also 1on gitudinal separation of the bearing sleeve is provided in thisi11stance,"which is merely for the purpose ofnnaking it more easily assembled." I l iave"alsb' shown, in thisin stance, the bearing sleeve 16 asperforated at its reduced parts" 16 by forming aseries of angle slots 18 therein, as in Fig." 3, hereinafter referred to."

. The bars orarms 17 of the bearing cage are formed 'i'na mannerto precisely fit into the reductions formed inthe bearing sleeve as shown, for the purpose of controlling the rotatable longitudinal'and contractive movements of the bearing sleeves. Said bars are also. formed "integral with their annular flange portion 20, the latter being formed in such manner as to normally closethe ends of the bearing casing, and the inner portion of the same reduced, as shown at 20", to slidably fit into the casing ends and to register within the ends ofthe container sleeve 6, as shown in Fig. 10.

Formed centrally withinthe said reduced flange portion of'the cage areannular slots 21in which are carried annular split ring portions'22,and formed cei'itr'ally'within the flat end portions of the rings are the taper holes 23. Located within the portions of the said cage flanges, and directly adjacent the end portionsjof said rings are positioned a plurality of taperscrew-pins 24, the oflice of which will be hereinafter referred to.

Annular, interiorly threaded, recesses 25 are also formed in' thecage flange 20, ad jacent to the shaft openings, in which are thread engaged oil 'ring glands26, and "in conj un ction with the same are 'p r'ovided fiber packing rings 27 the same' having angular surfaces corresponding to the inner contour,

of the glands '26, thus providing positive adjusting 'end closures around the shaft openings. There is also provided the lock' ing pins'28,'a lternating with the taper pins It is nowevidentthat the several members which rotate continuously around the shaft 14 may be placed in or removed from position withinPthe casing by simply remov-' ing the upper member, 2, of the casing, or by assembling jorjremoving them from the ends of, the casing, as wilrbe found most convenient. I f j It is now evident that the container -sleeve 6-6ji's complete as a single unit, while-the bearingv sleeves and the 5 adj oiningf parts are in duplicate and interchangeable, and they maybe entered into the extreme end of the container f sleeve, engaging their companion threads therein, after which they are'turned inwardxsufiiciently to register with the'pinholes 29 where the sleeves are locked to gcther as shown. The bearin cages are also longitudinally separableat t eir'flanged portions thatflthey may be free. tobe removed vertically from theiralining positions with the sleeves.

,I The adjoining portions of the 'split rings 22 are positioned within their companion grooves 3 and 21 and they may be expanded by'the' adjusting screws 24', thus fixing the longitudinal position of the bearing cages.

a It should be understood that having reduced the great cause of inefficiency in par"- allel bearings to a minimum, by the simple mechanism herein described of rotativejreinforcement' and compensation, the'r'will in practice remain a small but'evenly worn and absolutely true clearance after a time, between the shaft and the bearing'sleeves,-the adjustment and compensation -ofjwhich is provided as follows The bearing sleevesare formed sufficiently larger in diameter than the'gshaft carried thereby". Therefore by withdrawing 'jthe' lock-pins '28 from their normal positions, and applying a" suitable spanner wrench to "engage in the holes 32. which are formed in the. cage flanges, it is evident that, the excessplearance between the shaft and thebearing sleeves maybe reducedjby means ofa' forw-ardturn' of the cage members, or increased by a 'reverse turn of the same to facilitate the thickness of 'theoil film as required, this by reason of the, above mentioned taper wall and the right hand thread engagim contact that act in relation to the taper, walls in"a manner-to contact; [or expand radially'flthe bearing sleev'eIelements, The inclosed oil chamber, oe ocketsal, are in 'fact the entireispa'ce within the bearing not occupied by the bearing elements; t a

The bearing sleeve ln'teriors are formed as plaiii'surfa'ces inplaceof the "usual inner grooving of the same which latter ruptures and'destroys the film of oil, while the omis-- sion thereof tends to prolong the life of the bearing, in this connection slots 18 are so ar ranged as to reduce the spanner wrench pressure required to compress the sleeve. that is causing the sleeve to be somewhat re silient, and also pocketing up the oil, in a manner, and permitting the same to. filter evenly by gravity, to the point of least re sistance.

Aseries of channels 33 are provided adja cent, and connecting th groups of angle slots 18, conveying the oil thereto, also ex tending in parallel therewith, but spaced outside and beyond the contour of the inner surfaceof the bearing sleeves.-

Thisbearing may, with suitable pipe connection, beifilled with oil under pressur if desired, but in the present instance a partially filled chamber without pressure is pro vided, as this will answer in most instances.

\ Numeral 38 indicates the small 'openings that perforate the sleeve linings, and they extend radially inward from the'bottom portions of the slots 18, as shown in Fig. 16.

Numeral 37, Fig. 18, designates the angle 8 wall partitions disposed between the several angle-slots '18, allowing the sleeves to more readily compress or expand. Numeral 39 in dicatesthe shallow inner-angle grooves that complete theU-shaped passages through the lining. Numeral l6 denotes diametri'cal reduced portions of the arts 16.

The above describe invention is the climax of a series of inventions in parallel bearings, the former inventions which have previously developed into patents pertained mainly to maintaining the center of axis of the power driven journal, and to so arrange and proportion the lines of the several metals used in bearings in a manner such as to eliminate excessive initial cost to constructbearings, the coefficient of shrinkage audits kindred troubles, providing compensation for wear. a

' I desire that it beunderstood that various changes may be made in the several details of construction, and in the arrangement of the several parts, without departing from the spirit of my invention and without sacrificing any of the advantages'thereof. 5 Having now fully shown and described my invention, what L claim and desire to secure by 'Letters Patent of the 'United States, isa i a "LA j'ournal'bearing comprising in combination with a rotatable shaft, an outer non-rotatable casing surrounding the shaft but spaced therefrom, an inner sleeve fitting around the 'shaft,and means for automati- 'cally andpositively revolving said sleeveat a speedless'than that of'the speed of the bination with a rotatable, shaft, anfouter. non-rotatable casing surrounding the, shaft but spaced therefrom, inner slee'vesfitting around the shaft, a container sleeve ,rotata bly mounted in the casin'gand adapted to carry the inner sleeves therewith, andmeans for automatically and posltlvely revolvmg the container sleeve at a speed less thanthat of the shaft. v a

3. A journal bearing comprising,in combination with a rotatable shaft, an outer relatively stationary casing surrounding the shaft and spaced therefrom, :an. inner. sleeve construction fitting around said shaft, means for adjusting the fitting of said sleeve construction with relation to the shaft, a con taining sleeve slidably connectingrthe inner sleeve and thecasing, means operated automatically by the shaft for; rotating the sleeves within the casing positively but at a speed less than that of the-speed 'of'the shaft. 7

4:. A justifying beari-n comprisingydn combination with a-rotata le shaft, an;outer relative stationary casing surroundin' the shaft, a plurality of inner sleeves tting around the shaft, means for adjusting said sleeves with relation to the shaft, an outer sleeve surrounding the inner sleeves,.means for rotatably connecting the outer sleeve with th inner sleeve, means :fon closing the apertures in the casing around said shaft, and means for causing'all of said sleevesto be rotated positively with the shaft but at a reduced speed with relation thereto. f

5. A rotative bearing comprising, in com bination with a rotatable shaft, anouter relatively stationary casingsurrounding the shaft, inner bearing sleeves fitting on, the shaft and adapted to rotate. independently thereof, an outer sleeve connected with the inner sleeves, worm gears carried by the outer sleeve, an internal gear formed in the casing and meshing with said wormgears,.a

spiral gear carried by the shaft and meshing with said worm gears whereby the ,sail sleeves will'be automatically revolved around inside the casing in the same direction as the shaft but at a less speed than that of the shaft.

6. 'A compensating bearing comprising in combination with a rotatable shaft to be supported, an outer relatively stationary casing formed in' twoparts surrounding the shaft, inner bearing sleeves fitting around the shaft, means for adjusting said sleeves upon the shaft, anouter sleeve connected ;rotatably with th inner sleeves, a fixed-gear rigidly" "secured. to, and projecting from around the shaft, worm gearsj'carried rev= olubly by the outer sleeveand" meshing with said'fixed gear, and aninternal gear formed on the inner face of said casing and meshing with said worm gears whereby-the rotatlon ofthe shaft at-arelatively high speed will automatically and positively rotatethe inner sleeves. and the outer sleeve at a com: paratively low rate of speed, and means for closing the interior of the bearing vvhereby a bodyof. oil may be retained thereimiall substantially as shown and described."

7., A wear-alining bearing comprising'in combination with a rotatable shaft, an outer stationary casin surrounding the shaft,"a plurality of longitudinally sep arable sleeves having, their inner reduced end portions spaced apart and slidably engagingan outer reversed con sleeve, aplurality ,of' longitudinally separable cage devices carried'within the said outer sleeve and disposed in the space not occupied by the bearing sleeves, they being .the means to control the adjustment of "the inner sleeves, closuresdisposed at the extreme ends of the; cages and comprising an annular threaded recess ,within the cage portion, an angular packing ring having. an: inclosing angular. companion gland engaging with=said= annular threaded recess of the cage portion, and means automatically operated by the said shaft to continuously roll the bearing mechanism at a greatly. reduced speed within the casing, sub stantially as set forth. a

8. An automaticwear-alining bearing comprising in combination, with a rotatable shaft, an outer comparatively stationary ca's ing surrounding the shaft, inner. bearing sleeves fitting around the :shaft, said sleeves having a seriesof longitudinally spaced tie portions formed on their inner lining parts and adapted to bridge the several sections of the sleeve into a unit, a container sleeve disposed around the bearing sleeve, a plurality of cage-members disposed within the container sleeve and located reversel-y thereto, means for absolutely closing the ends of the cages around the shaft, means fen-maintaining theexact longitudinal 'alinement" of the case members with relationto the outer casing and comprising a separable flat-ring.- like portion carried slidably within and between adjacentgrooves provided inboththe cage and the casing, screw-conepins carried by the cage portion andv engaging like formedholes provided in the separable margins of thering ,toexpand the, same, and means to automatioally revolve the'entire inner mechanism of the bearin' at a speed less than the speed oftheshaft t at it' supports.

9., In combination with a journalbearing or the 1ike,"a speed reducing mechanism comprising aninternal gear carried by acasing,

.a'fixed worm-gear mounted on a shaft which projects through .said casing, a container sleeve'revolubly ,positioned in said casing and spaced from said shaft, spaced-apart supporting sleeve mechanisms vfitting around said shaft and revolubly attached ,within said container,; a pair of oppositely positionedltransverse out worm gears revolubly attached to the container sleeve in a In testimony whereof I have hereunto submanner such as to mesh wlth said worm scribed my name to this specification 1n the gears and also 1n transverse mesh with the presence of two subscribing witnesses.

internal gear thereby causing the bearing to FRANCIS E. BUXTON. roll in the same direction as the shaft but at Witnesses:

a greatly reduced rate of speed with relation JACOB H. HILKENE,

thereto, all substantially as set forth. GEORGE HARVEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. I

Images