US2008683A - Railway truck - Google Patents

Description

July 23, 1935.

G. F. CQUCH RAILWAY TRUCK 2 Sheets-Sheet 1 Filed May 17, 1932 WN: .M N m v G. F. coUcH 2,008,683

y RAILWAY' TRUCK Filed May 17, 1932 2 Sheets-sheet 2 July 23, 1935.

` lNvEN-ron /e/M F COUCA/z ATTORNEY i PATENT ortica RAILWAY 'raUox v.Glenn F. couch, Rochester, N. Y., asignar to The Symingt on Company, New York, N. Y., a'

corporation ot Maryland l application May 17, 1932, sen-ai No. 611,883

`"l'his invention relates to railway trucks and, more particularly, to such with roller bearings disposed between the wheels and boxes thereof.

The principal object of'my invention, generally considered, is to provide ka railway truck construction in which the axles are mounted withtheir ends received in and non-rotatably connected to oil boxes or. cellars adapted for reception between associated truck pedestals, said wheels having hub portions surrounding the axle and extending inwardly toward one "another, and rollers disposed between the hub portions and boxes and lubricated from said cellars.y

.Another vobject of my invention is the proviit; sion of a railway truck involving an axle with its ends secured to non-rotatable oil cellars or boxes, the exterior surfacesof which are desirably contoured to suit side frame or truck pedestal jaws,

A and wheels mounted on said axleand provided with roller bearings lubricated from said oil boxes. A further object of my invention is to provide for the independent or free mounting of wheels on a railway vehicle axle, the ends` of whichare y secured to oil boxes or cellars, said axle desirably having an intermediate or central oill box or cellar, and the rwheels lriavingA hub portions between the ends of which and said boxes orA cellars are disposed roller bearings lubricated from said cellars.'

Other objects and advantages of the invention relating to the particular arrangement and construction of the various parts will become apparent as the description proceeds.

Referring to the drawings illustrating my in- I vention, the scope whereof is defined by the ap- 35, pended claims:-

Figure 1 is a side elevation of an axle with wheels and associated roller bearing assemblies mounted thereon, one of said wheels, bearing as- 1semblies and associated oilbox' and part of an fifi intermediate oil cellar being shown in section.l Figure 2 is ahalf end elevational view of the oil box, axle and associated wheels shown in Figure l. A

Figure 3 isa half sectional view on the line 4:5 of Figure 1, looking in the Adirection of the arrows. Figure 4 is a half sectional view on theline -e of Figure l, looking in the direction of the arrows. Figure 5 is a half sectional view onv the line 5 5 of Figure 1,1ooking in the direction of the arrows.

` 50 J Figure 6 is a view corresponding to Figure l,

f but showing a modied form of construction -in 'which the wheels are not movable with respect to one another.

. ligure 7 is a half end elevation of the construc- 55 tion shown in Figure 6. l

'i claims., (ci. 295-36) y In my cci-pending application, Serial No. 388,- 748, led August 27, 1929, I have disclosed a rail- Way axle with independently rotatable wheels and rollers between said wheels and axle and lubricated by oil, or the like, enclosed in the space 5 between extended hub portions on said wheels and said axle. There are certain advantages iny having the lubricant-containing members stationary rather than rotating with the wheels, and in the present application Ihave provided sta- E0 tionary oil cellars incorporated in dummy journal boxes to whichA are secured the journals, and which serve for supplyingflubricant to rollers disposed between said boxes and the hubs of the wheels. The oil boxes or cellarsv and axle rel5 tainers may be externally contoured to suit any type of separate box truck or pedestal jaws. With such an arrangement, the wheels or rollers thereof may be lubricated through the oil boxes rather than through a plug on the wheel hub or 20 rotating housing between the wheels. In this way, an oil gauge, if desired, may be provided for the lubricant in the boxes, and there is no centrifugal force in the boxes, due to rotation, to throw the'oil away from the rollers to be lubri- 25 cated.

Referring now to the drawings in detail, like parts being designated by like reference characters, and iirst considering the embodiment of my invention illustrated in Figures l to 5, inclusive, 30 there is shown an axle i of generally plain construction, and the ends of said axle in the present embodiment are received in boxes 2r having oilreceiving portions or cellars 3 desirably provided with plugs i and 5 for supplying lubricant thereto 35 and removing it therefrom. The external surfaces 6 of the boxes 2 may be contoured for reception between truck or pedestal jaws of the usual type (not shown).

- Rotatably mounted onA the axle i are wheels l 40 with rims or tread portions adaptedy to engage rails, and hai/ing hub portions 3 extended toward one another and outwardly for reception between 'inwardly extending housing portions E on the boxes 2. The wheels and hubs t are rotatably mounted with respect to the axle i andboxes 2 by having rollers ill which, in the present embodiment, are conical and desirably disposed within theoutlines of the wheel treads, although I do not wish to be limited to `this showing,

mounted between outer bearing cones ii and inner bearing cones I2, which, in turn, are respectively mounted on the iianges 9 of the boxes 2 and the outwardly extending hub portions i3.

Lubricantis supplied to the rollers i@ fromrthe i555 cellar 3 by means of one or more apertures I d, loss of said lubricant being prevented by annular cover members I5 connected to the flanges 9 by bolts, or the like, suitable packing I6 being desirably provided between the adjacent surfaces of the flanges 9 and the covers I5. Oil thrower rings Il are desirably provided on the hub portions I3 to keep oil from passing through the annular openings between the cover members I5 and the hub portions I3. inasmuch as the flanges or housing portions 9 are subjected to the greatest stress at the top, they are desirably formed of a thickness varying from a maximum at the top to a minimum at the bottom, or thicker at the top than at the bottom, to make the most eiicient use of the metal, as shown most clearly in Figs. 1 and 3.

In order to make the wheels independently movable with respect to one another, an oil cellar or box I8 is desirably secured to, or non-rotatably mounted on, the axle I between the adjacent ends of the wheel hubs 8, preferably by pressing it on an enlarged seat portion I9 of said axle. The cellar' I8 comprises a central or intermediate lubricant compartment 20 opening through one or more apertures 2| in each wall 22 to a roller bearing space defined by annular flanges 23. The adjacent ends of the hubs 8 are received within the flanges 23, as shown most clearly in Figure l, and rollers 24 mounted between outer cones 25 and inner cones 26, respectively, connected to the flanges 23 and the hubs 8 serve for anti-frictionally mounting said hubs with respect to the cellar I8 and axle I. desirably oppositely arranged as compared with the rollers Ill, that is, their large ends are disposed outward, rather than inward, so that the rollers I0 and 24 cooperate for taking end thrusts, without the necessity of auxiliary end thrust members. one or more lubricant plugs 21 are provided. Said cellar or drum type double-ended center casting I8 may be pressed in place on its seat adjacent the center of the axle, rather than being connected to said axle like the cellars 3 by means of pins 28 passing through corresponding apertures in the connected parts.

The rollers 24 which, in the present embodiment, are conical, although I do not wish to be limited to this showing, may be smaller than the rollers I0 because they do not take as great a load. They are desirably enclosed, like the rollers I0, by annular cover members 29 connected to the ange's 23 by means of bolts, or the like, 30, packing l3l being desirably provided between the adjacent faces of the covers 29 and flanges 23. Packing 32 may also be provided between the adjacent surfaces of the covers 29 and hubs 8 for minimizing loss of lubricant, and oil throwers 33 are desirably provided on said hubs for a similar purpose.

Referring now to the embodiment of my invention illustrated in Figures 6 and '7, a construction is there disclosed which is similar to that of Figures l to 5, inclusive, except that the wheels 'Ia mounted on the axle la are rigidly connected by the extended hub portions 8n so that the arrangement is not free-wheeling, the boxes 2 are of different construction, and the axles Ia are connected thereto by means of bolts 28a and nuts 34, rather than the pins 28 of the preceding embodiment, which are retained in place by the equalizer plates 35 and associated equalizer (not shown). Except for these differences, the construction is substantially identical with that of The rollers 24 are,

As in connection with the cellars 3,

the preceding embodiment, the oil cellar portion 3a of the box 2a supplying lubricant to the rollers Illet through one or more apertures Ida, as in thev ends between wheel hubs and adjacent portions of the oil boxes, said bearings being lubricated from the oil boxes which are non-rotatable, but, if desired, adapted to move up and down in associated truck pedestals.

Although preferred embodiments of my invention have been illustrated, it will be understood that modifications may be made within the spirit and scope of the appended claims.

I claimz- 1. In a railway truck, an axle with its ends secured thereto, a pair of wheels mounted on said axle between said ends, each wheel having a hub portion surrounding the axle and extending inwardly toward, but terminating short of, the hub portion of the other wheel, rollers positioned exteriorly of, and acting as bearings for, said hub portions, and oil boxes housing and supplying lubricant to said rollers.

2. In a railway truck, a pair of non-rotatable oil cellars, an axle with its ends secured thereto, a pair of wheels adapted to rotate on said axle independently of one another, each wheel having a hub portion, and roller bearings disposed between said hub portions and oil cellars, said oil cellars being adapted to supply lubricant to said rollers.

3. In a railway truck, a pair of non-rotatable oil boxes, each box being externally contoured to t between associated truck pedestals, an axle with its ends secured to said boxes, a pair of wheels with tread portions mounted on said axlebetween said boxes, each wheel having a hub portion surrounding the axle and extending inwardly toward the other wheel, and rollers disposed between said hub portions and oil boxes and within the outlines of the tread portions of said Wheels, said boxes being formed to supply lubricant to said rollers.

4. In a railway truck, a pair of non-rotatable oil boxes, an axle with its ends secured to said boxes, Ia pair of wheels mounted on said axle between said ends, each wheel having a hub portion surrounding said axle and extending inwardly toward the other wheel, an oil cellarl secured to said axle between the adjacent ends rof said hub portions, and rollers disposed between said hub por-'- tions and said boxes and cellar, said boxes and cellar being adapted to supply lubricant to said rollers.

5. In a railway truck, a nonrotatable axle, a pair of wheels mounted on said axle, each wheel having a hub portion extending inwardly toward the other wheel, an oil cellar secured to said axle between the adjacent ends ofl said hub portions, and rollers disposed between said hub portions and cellar, said cellar being adapted to supply lubrieol axle with its ends ttlng therein, a pin passing through the upper portion of each box and the corresponding portion of the axle for preventing rotation therebetween, a pair of wheels mounted on said axle between said boxes, said wheels having hub portions extending outwardly toward said boxes, said boxes having flange portions housing said hub portions, and rollers disposed between said ange portions and hub portions, the lower portion of each box being hollow for receiving lubricant and communicating with the space between said ange portions and hub portions for supplying lubricant to said rollers. A

GLENN F'. COUCH.

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