US1938333A - Journal box - Google Patents

Description

Dec. 5, 1933.

Filed June 17, 1929 2z :fafg

J. J. HENNESSY JOURNAL BOX 2 Sheets-Sheet l Z/2 Ven for c/d/ffw d bn/Yessy Dec. 5, 1933. .1. J. HENNESSY JOURNAL BOX Filed-June 17, 1929 2 Sheets-Sheet 2 Jz/ f v.

Patented Dec. 5, 1933 UNITED STATES PATENT @FFCE 6 Claims.

My invention relates to railway rolling stock and more particularly to journal boxes of the general type illustrated in my co-pending applications Serial No. 212,917, led August 15, 1927, and Serial No. 311,850, led October 11, 1928.

rIhe main object of my present invention is to provide a bearing structure for a joiunal box which will facilitate the application of oil or other lubricant to the surface of the journal.

Another object is to facilitate the application and removal of the bearings to and from the box without dismantling the box from the pedestal in which it is mounted.

Thek co-pending applications referred to above illustrate devices designed for locomotive driver axles. It is one of the objects of my present invention to provide a bearing of this type which may be utilized for car axle journals and may M be substituted for the ordinary A. R. A. box in trucks or other manufacture.

These and other detailed objects of my invention are attained bythe structure illustrated in the accompanying drawings in which- Figure 1 is a vertical section through a driver box with the axle journal and a portion of the Wheel hub assembled therewith.k

Figure'2 is a Vertical transverse section taken on the line 2 2 of Figure 1.

Figure 3 is a detail View showing the lubricant engaging plates provided at one end of the structure.

Figure 4 is a vertical section through a. modified form of the box adapted for use on car journals.

' Figure 5 is a vertical transverse section taken on the line 5-5 of Figure 4.

In the structure shown in Figures 1 to 3, the body of the driver box is indicated at 1, the same being provided with a lubricant reservoir 2 in its lower portion having a lling spout 3. The box has an inner longitudinal wall 4 forming substantially a section of a cone and the lefthand end of the box near the hub of the Wheel has an end Wall 5 provided with an opening which will receive the journal 6. A sleeve 7 is fitted into the box and is split lengthwise, as indicated at 8, into two or more sections. Y The sleeve is also split transversely intennediaterits ends and a separate member 9 is inserted between the forward and rear sections of the sleeve but does not engage the journal. Dowels D project from the box wall into suitable grooves in the sleeve sections to prevent rotation of the latter. A screw S performs a similar function for member 9.

The outer periphery of the sleeve 7 is tapered to correspond to the taper of the inner longitudinal wall 4 of the box and the inner-periphery of sleeve 7 is preferably cylindrical and forms a seat for a series or" rings 10 preferably split, as indicated at 11. A number of these rings are positioned between the end wall 5 and member 9 and another group of rings is positioned between member 9 and the opposite end of thebox. A detachable cover 12 is adjustably fitted into the end of the box most remote from the Wheel and is provided with an element 13 for engaging the end ci sleeve 7 and the outer ring 10. This cover is formed in two pieces to permit application over the axle.

Obviously, tightening of bolts 15 which secure cover 13 to box l will drive the split bushing further into the box and decrease the diameter of its internal periphery thereby adjusting the rings 1D to provide a snug iit on the journal.

The. combined thickness c1 the rings 10 is less than the distance between their retaining elements 9, 13 and 16, leaving them free to more to and from each other so as to rotate more freely, to better seat themselves and to contribute to the distribution of lubricant over the journal.

The inner periphery of member 9 is spaced from the surface of the journal 6 and is recessed as at 19 to receive a chain 18 or other suitable oiling ring loosely applied to the journal. inner portion of member 9 is cut away at and chain 18 extends through the lower portion of the outer wall, as indicated at 9b, down into the reservoir 2 and feeds oil to the upper portion of the journal which oil gradually spreads throughout the length of the journal and iinds its way over the same by following the spaces between rings 10. n

A flange 2i) extends inwardly from the end wall 5 and has a re-entrant lip 21 on its inner end spaced from the journal. A throw-off ring 22 is formed of two or more arcuate pieces fitting the journal and yieldingly held to the journal by a wire 43 having its ends connected by a spring 44. The outer periphery of ring 22 is curved' over lip 21 and guides any oil discharged centi ugally from the journal into the trough formed by flange 29 and lip 21 from whence it is returned to reservoir 2 through a passage 45. A similar throw-off ring 46 is applied to the journal near the inner end of the box and guides any discharged lubricant into the trough 47, formed in the cover 12, from whence it is led into the reservoir through passage 48. Space is provided on both sides of rings 22 and 46 to accommodate 3A inch maximum relative shifting movement of box and journal.

The box is applicable to the journal transversely of the latter by means of the side opening provided by removal of the detachable section 49 which feature is described and claimed in my copending applications referred to above.

In the structure shown in Figures 4 and 5, the box body 25 has an exterior contour corresponding to an A. R. A. journal box with the exception of its end structure which is provided with a removable cap 26 which is recessed, as indicated at 27, to receive a thrust bearing 28 adapted to engage the end of the journal 29.

The member 30 forms the stationary sleeve and is provided with suicient thickness at the top to resist distortion under heavy load and preferably is made in one piece and is provided with a semi-circular grooved member 31 for receiving the oiling chain 32.

A series of rings 33 are mounted in member 30 in spaced relation and form the journal bearing. Since the end of the journal is accessible when cap 26 is removed, it is not necessary to split member 30 or the rings 33 as the same may be slipped on to the journal lengthwise of the latter. The clearance between the top wall 34 of the oil reservoir 35 and the bottom of member 30 is suiiicient to permit the box and truck structure supported thereon to be jacked up far enough to relieve the journal of its load and permit the withdrawal of the bearing elements.

A collar 36 is fitted on to the journal near one end of the box and serves to return oil which tends to iiow along the journal and through the end of the box.

No corresponding collar is needed at the opposite end of the box as the same is closed by cap 26 since the journal terminates with its outer end in the box.

The bearing sleeve 30 has lugs 3'7 to engage recesses in the box and these lugs and recesses correspond to those present in the ordinary box and journal bearing wedge structure. My construction eliminates the bearing wedge usually required in journal boxes for railway cars.

The ring spacer 3l is held in position by the dowel screw 38. Spacer 3l can be entered after the rings on the inner portion of the bearing have been placed in position and before the sleeve 30 has been entered more than half Way into the box. It is not necessary for spacer 31 to encircle the journal if the bearing rings 33 are made as shown, i. e., not formed in two or more parts.

In both forms of my invention, the bearing provided by the plurality of rings accommodates any unevenness of the journal surface and tends to preserve a uniform bearing face and will tend to eliminate undue wear at one point as must result from a stationary bearing.

The details of the construction illustrated are not essential to the embodiment of my invention and I contemplate the exclusive use of such modifications of my invention as come within the scope of my claims.

I claim:

1. A railway axle journal bearing comprising a plurality of narrow metallic rings arranged end to end, each formed of a plurality of parts, a split sleeve surrounding said rings and holding them in axial alignment said sleeve having a tapered exterior, and a journal box having a correspondingly tapered interior whereby said parts are adjusted radially by axial movement of said sleeve.

2. In a railway axle journal bearing, a plurality of narrow rings arranged end to end and provided with aligned inner peripheries forming journal engaging surfaces, an annular member between two of said rings with an inner periphery of greater diameter than the inner peripheries of said rings and provided with an inwardly facing recess, and an oil conveying element positioned in said recess.

3. In combination, a railway journal box having a lubricant reservoir in its lower portion, a plurality of rings mounted in said box and having aligned inner peripheries forming a journal bearing surface, a member between two of said rings and spaced from said bearing surface and provided with a recess on its inner periphery, and an oiling element in said recess and adapted to rest on a journal seated in said bearing surface.

4. In combination, a locomotive journal box including an end wall with an opening for an axle journal and including a longitudinal inner wall converging towards said end wall, a split sleeve fitting said converging wall and having a cylindrical inner periphery, a series of rings fitting in said sleeve and having inner peripheries forming a journal bearing, a detachable cover adjustably inserted in the other end of said box and engaging the corresponding end of said sleeve, said end wall and said cover having elements for engaging the end rings of said series.

5. In combination, a journal box, a sleeve therein split lengthwise and transversely into a plurality of portions, a member spacing the transversely split portions of said sleeve and provided with a groove on its inner periphery, and an oiling ring positioned in said groove.

6. In combination, a journal box having a tapered interior, a sleeve tting therein and split lengthwise and transversely into a plurality of portions, a plurality of rings in said sleeve having inner peripheries forming a journal bearing, and a member spacing certain of said rings and the transversely split portions of said sleeve and provided with a recess for receiving an oiling member and spacing the same from said rings.

JAMES J. HENNESSY.

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