US1935763A - Railway journal box mounting - Google Patents

Description

Nov. 21, 1933. H. A. BERGERT RAILWAY JOURNAL BOX MOUNTING Filed Aug. 29. 1931 2 Sheets-Sheet 1 22 M #16 9 7-1-0 PA/EKS.

Nov. 21, 1933. H. A. BERGERT RAILWAY JOURNAL BOX MOUNTING Filed Aug. 29, 1931 2 Sheets$heet 2 Patented Nov. 2 1 1933 UNITED STATES.-

mm OFFICE RAILWAY JOURNAL Box.. 1vioU1 1'rING Henry A. Bergert, Canton, Ohio, assignor to The Timken Roller Bearing Company, Canton, Ohio, acorporation of Oh io Application August 29, 1931. f Serial No. 560,061

10 Claims. (01. 105 -225) My invention relates to railway rolling stock truck and journal box constructions. In present day rolling stock construction, the car and locomotive tru'ck frames are cast in one large in- 5 tegral piece and the vertical side members or pedestals comprising the sides of the journal box receiving openings are subject to continual wear due to the vertical and lateral movement of the journal boxes resulting from uneven track, crossovers, and the like. Consequently, these 1 side members or pedestals must be protected-by special parts readily capable of being adjusted to compensate for such wear; and in locomotive construction particularly, this adjustment is further spect to the frame in order to obtain proper alinement of the driving mechanism. Furthermore,

with the application of anti-friction bearings to axle journals of locomotives, it is important that close clearance between the journal boxes and frames be maintained and this clearance is' so close, that it is exceedingly difficult andexpensive to machine the large locomotive main frame"- castings to meet such requirements; and the? principal object of the present invention is to provide a simple and inexpensive'i aiiway, truckframe and journal box construction wherein the journal boxes are readily capable 'of idelicate; longitudinal adjustment within theside frame 341 openings for the purpose of obtaining proper alignment of the driving mechanism {during assembly of the journal boxes in theframegand thereafter to compensate for wear.

My invention consists principally in providing of parts hereinafter described and claimed. In the accompanying drawings, which form "part of this specification, and wherein like reference numerals refer to like parts wherever they occur. j

Fig.1 is an end view, with parts brokenaway 65 and'wheel removed, of anaxlejand journal box j necessary to correctly locate the axles with re-' around the pedestal'fl.

My invention also consists in -the" truck frame and journal box construction and inv the parts, and combinations and arrangements assembled in a railway truck frame opening in a manner conforming to my invention,

Fig. 21s a. plan view of one end of an axle mounted in a'railway truck frame opening and showing part of thejournal box, wear plates and a frame in section, V I

v Fig. 3 "is an enlarged endview of the left end portion'of Fig. 1 being substantially a vertical sectional view taken through the middle of the side frame and journal box showing the Cohnection between'fit and the pedestal, and.

Fig. 4-is an enlarged view of the left hand portion of Fig. 2 being substantially a horizontal sectional view taken through the middle of one half of the journal box and frame showing the connection between the two. In theconstruction illustrated, a locomotive truck frame l'is provided with a jaw opening 2 defined by channel-shaped pedestals 3 having their web portions 4 constituting the side walls of the jaw opening. Assembled in the jaw opening 2"is1a'journal box 5 carrying an axle 6 having a wheel T'pr'ovided' thereon. Protruding from each side of the journal box 5 is a cylindrical trunnion 8 which extends into an opening pro so vided therefor in a slidably mounted channelshaped guide block 9 on each side of the journal box; and theseguide blocks are fitted around a. channel-shaped wear plate 10 of special hardened 'steel or 'the' like which is likewise fitted The wear plates are provided with a series of openings through their web portions for receiving cap screws 11 having their head portions 12 counter=sunkfiri the 'weafplate and their stem portions'"1'3 extending' into threadedholesl l provided' in'" the Web portion 4 of the pedestal 3; andinterposed between the wear plate and the pedestal are suitable shims 15 for setting the wear.

plate to give as close a clearance between-it and "the contacting journal box parts as may be rej quiied."' Preferably the shims 15 may be arran'ged'to vary in thickness by progressive steps as -(.060", .040", .030", 020", .015) so that a {particular combination therof may be used to give variations of .005 to compensate for any very slight error in the machining of the frame,

and also, to compensate for wear thereafter. Obviously, a single shim may be used instead of i a plurality of shims, if desired. we

" The web portion of the wearplate is provided in its cente'rtwith a cylindrical opening in alignment with a corresponding opening through the web portion of the pedestal for receiving a dowel pin' l fi' ha ving an annular rib 17 for abutting limiting the distance which the dowel pin extends into the wear plate and preventing the pin from extending entirely through the same. The center of the dowel pin has a longitudinal opening 18 therethrough constituting a lubricant duct; and provided on the outer end of the dowel pin 16 between the side flanges of the pedestal 3 is a suitable fitting 19 for attaching a lubricant device (not shown). drical trunnion extending from the journal box is a recess or cavity 20 located adjacent to the inner end of the dowel pin and constituting a,

lubricant reservoir communicating with the lubricant duct through the dowel pin; and the trunnion and guide block has a vertical groove 21 communicating with the recess 20 to assist inpromoting proper distribution of the lubricant between the contacting surfaces of the trunnion, guide block and wear plate. 7

The advantages of my invention are obvious as the use of the shims constitutes a simple and inexpensive means for compensating for errors in the horizontal spacing between the center lines of the frame openings during initial assembly of the journalboxes in the frame in order to give proper alinement to. the driving mechanism; and

they also provide simple means for adjustment of the frame to compensate for wear of the pedestal and journal box parts. Also, the use of the round dowel pin to prevent vertical movement of the wear plates is much more satsifactory than the old method forpreventing such movement by the use of lugs extending from the pedestal above the top and bottom of the wear plates, since the round dowel-fitting offers the advantage of having only one point for close machine fitting as distinguished from the old arrangement wherein two fitting points. must be carefully machined for close and proper fitting.

Furthermore, my novel dowel pin arra ngement,

besides taking the vertical shearing force placed on the wear plates to relieve the cap screws from taking careof such force, also affords a simple means of lubricating thecontacting surfaces of thewear plates and the journal box and related parts; and also by securing my wear plates directly to the inner face of the pedestal web by means ofthe recessed cap screws, this obviates any tendency of the piston thrust fromshearing thefastening means of the wear plates to the pedestal and, as a matter of fact, any tendency whatsoever, to loosen them.

-Obviously, the construction hereinabove de-.

scribed admits of considerable variation without departing from the spirit of my invention; and

accordingly, I do not wish to limit my invention to the precise construction shown and -de scribed. 1 WhatIclaimisz v v l. The combination of a railway truck frame having a journal box receiving opening, a wear plate positioned adjacent to the wall of said open-, ing so'that shimming means may be inserted therebetween, adjustable fastening means for, securing said wear plate to said frame and hold ing any such shimming means in place, and means extending from said frame and into said wear plate to relieve said fastening means of excessive shearing forces. t

2; The combination of a railway truck frame having ajaw opening defined by a pedestal, a wear plate for said pedestal, shimming means interposed between said wear plate and said pedestal, adjustable fastening means extending Provided in the end of the cylin- 1,985,763 against the outer face of the pedestal web 1dr through said wear plate and into said pedestal for securing said wear plate to said pedestal and holding said shimming means in place, and a dowel pin extending through said pedestal and into said wear plate to prevent shearing said fastening means.

3. The combination of a railway truck frame having a jaw opening defined by a pedestal, a channel-shaped wear plate fitted around said pedestal, shimming means interposed between said wear plate and said pedestal, cap screws extending through said wear plate and into threaded holes provided therefor in said pedestal,

.said cap screws having their heads countersunk in said wear plate, and means extending through said pedestal and into said wear plate to prevent shearing said cap screws.

4. The combination of a railway truck frame having a jaw opening defined by a pedestal hav ing an opening therethrough, a wear plate for said pedestal, said wear plate having an opening therethrough adjacent to the opening through said pedestal, screws for holding said wear plate to ,said pedestal, and a dowel pin extending through the opening in said pedestal and fitting into the opening in said wear plate. I

5. The combination of a railway truck frame defined by a channel-shaped pedestal whose web portion thereof constitutes the side wall of said jaw opening, said web portion having a series of threaded holes and a cylindrical opening therethrough, a channel-shaped wear plate fitted around saidpedestal and having openings therethrough adjacent to the openings through the web portion of the pedestal, a dowel pin extending through the cylindrical opening in'the Web portion of said pedestal and into the adjacent opening in the wear plate, and cap screws ex- ;tending through the openings in the wear plate. and into the threaded holes in the web portion of the pedestal.

V 6. The combination of a railway truck frame having a jaw opening defined by a channelshaped pedestal whoseweb portion thereof constitu tes the side wall of the jaw opening, said web portion having an opening therethrough, a channel shaped wear plate fitted around said pedestal and having an opening in alinement with the opening throughthe web portion of the pedestal, means extending through said wear plate and into the web portion of said pedestal for fastening said wear plate to said pedestal,

, and a dowel pin extending through the opening in theweb portion of the pedestal and into the opening in the wear plate, said dowel pin having .an opening therethrough for supplying lubricant 'to the wearing face of the wear plate.

7. The combination of a railway truck frame having a jaw opening defined by a. channelshaped pedestal having its web portion constituting the sidewall of the jaw opening and havprotruding therefrom and extending into the opening providedtherefor in said guide block, "150 journal box in said opening having a trunnion and a dowel pin extending through the opening in the web portion of said pedestal and into the opening in said wear plate, said dowel pin having a lubricant duct therethrough and said journal box trunnion having a recess in its end located adjacent to the inner end of said dowel pin and constituting a lubricant reservoir for lubricant delivered through the opening through the dowel pin.

8. The combination of a railway truck frame having a jaw opening defined by a pedestal having an opening therethrough, a journal box in said jaw opening, a wear plate interposed between said journal box and said pedestal, said wear plate having an opening therethrough adjacent to the opening through the pedestal, shimming means interposed between said pedestal and said wear plate, fastening means extending through said wear plate and into said pedestal, a dowel member having a lubricant opening therethrough and extending through the opening in said pedestal and into the opening in said wear plate, said journal box having a recess in the side portion thereof adjacent to the dowel member for receiving lubricant and means communicating with said recess for distributing lubricant along the surface of said wear plate.

9. The combination of a railway truck frame having a jaw opening defined by a pedestal having an opening therethrough, a wear plate for said pedestal having an opening therethrough in alinement with the opening through the pedestal, shims between said wear plate and said pedestal, adjustable fastening means extending through said wear plate and into said pedestal, a dowel member extending through the opening in the pedestal and into the opening in the wear plate and having a lubricant opening therethrough, a journal box having a trunnion in said jaw opening, a member slidably mounted with respect to said wear plate and having an opening therethrough for receiving said journal box trunnion,

said journal box trunnion having a cavity located adjacent to said dowel member for receiving lubricant delivered through the lubricant opening in the dowel member and means provided in said trunnion and said slidably mounted member and communicating with said cavity for distributing lubricant along the wearing surface of said wear plate.

10. The combination of a railway truck frame having a jaw opening defined by a channelshaped pedestal having its web portion constituting the side wall of said jaw opening and said web portion having an opening extending therethrough, a channel-shaped wear plate fitted around said pedestal and having an opening therethrough adjacent to the opening through the pedestal, shims interposed between said wear plate and said pedestal, cap screws extending through said wear plate and into threaded holes in the web portion of the pedestal, said cap screws having their head portions countersunk in the wear plate, a dowel pin having a lubricant opening therethrough and extending through the opening in the pedestal and into the opening in the wear plate, means for preventing said dowel pin from extending entirely through said wear plate, a channel-shaped guide block fitted around said wear plate and having a cylindrical opening therethrough and a journal box assembled in said jaw opening and having a trunnion extending into the opening in said guide block, said trunnion having a lubricant recess in its end adjacent to the lubricant opening through the dowel pin and said trunnion and said guide block having a lubricant groove along their faces adjacent to said wear plate and communicating with said lubricant recess.

' HENRY A. BERGERT.

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