US1701707A - Lubricating bearing for journal boxes - Google Patents

Description

- Feba l2, 1929 1,701,767

G: EVENO LUBRICATING BEARING FOR JOURNAL BOXES Filed May 15, 1920 2 Shets-Sheet 1 1 Febo E2, 1929 1,701,707

G. EVENO LUBRIGATING BEARING FOR JOURNAL BOXES Filed May 13- 1920 2 Sheets-Sheet 2 ATTY.

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Patented ch. 12, 1929.

UNITED STATES 1,101,101" PATENT; oFrIcE.

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Application filed liay 18, 1920, Serial No. 381,050, and in France May 16, 1918.

My invention relates to journal boxes for railway cars and the like, and has as its chief object the provision of means for distribut .ing and retaining the lubricant within the box. With this in view it is my object to provide a lubricating device capable of'supply- 'ing a journal with a regular and continuous amount of lubricant in suitable quantities at all speeds; and also to prevent, or reduce to I a minimum, loss of lubricant from the box.

It is further my object to utilize both the, force of gravity andcentrifugal force to ac-' Fig. 1 shows a form in which the collecting member overhangs the bearing;

Fig. 2 shows an arrangement similar to Fig. 1, in which the collecting member is provided with a' coned edge;

Fig. 3 shows a' similar arrangement in whichthe collecting member is provided with interior partitions Fig. 4, shows an. arrangement in which the collectingmember serves also as a bearing r for the dust cap; and, Fig. 5 shows a complete journal box ineluding means for distributing the lubricant, and showing an arrangement in which the collecting member does not overhang the bearing. I

Referring to these drawings and particularly to Fig.5, the journal 1 supports the box through the brass 8 which rests. thereon, the brass 8 preferably being provided with grooves in the usual manner for. the distribu 5 tion of the lubricant suppliedto the brass;

(in the end of the journal I secure, by suit: able means such as the bolts shown, a pallet a, preferably formed of a strip of metal extending to both sides, and bent at b and 0 so as to extend overthe end of the brass 8, the portion be 0nd the 'bend a being of sufiiclent length to ip into the oilreservoir 4 at the bottom of the-"box as the journal revolves. The width of the pallet to be used depends ,3 until a relatively on the size of the journal and the viscosity of the lubricant, being made suflicient to pick up enough lubricant to supply the bearing with its needs.

The'upper part of the box above the path of the pallet a is inclined-and provided with a series of pockets (1, the dividlng edges eof which lead the lubricantthrown thereon by centrifugal force fromthe pallets to the wall 7 ofthe box, which the lubricant runs down onto the brass Swhence it is distributed bythe said grooves in the usual manner. In viewof the bends in the pallet, bring mg the ends over the brass, when the speed is not sufficient to cause the oil to be thrown off. against the pockets (1' by centrifugal force, it drips directly on the brass from the bend 0, so that either at high speed under centrifugal force or at low speed under the force of gravity oil is supplied to the brass.

Lubricant being provided in quantity to the journal it is important to provide elliclent means'for preventing loss of lubricant along the-shaft. While discs have been used for this purpose, such have not proven entirely satisfactory, and I have devised a collooting member? fixed to theshaft and havs,

ing a-cavity 3 facingtoward the journal of. such dimensions that the capacity thereof" corresponds to the quantity of oil or grease recelvedby the part lubricated, which oil or grease has a tendency to escape by the opening of the bearing during rotation of j the axle between two stops of the vehicle. Lubricant passing along the journal I from under the brass 8 has a tendency to be thrown outward by centrifugal force, and also to flow along the shaft. The collecting member 2 maybe disposed as shown in Figs. 1-4 to overhang the end of the brass and collect the oil thrown 03 by centrifugal force, which is retained in the cavity 3 while the shaft rotates rapidly, butas the Vehicle comes to 'a 'stop, thecollected lubricant flows gently from the bottom edge of the collecting member 2 into the oil reservoir 4:. Experience has demonstrated that the lubricant will be maintained by centrifugal action in the. cavity to cause projection is attained.

To facilitate flowing of the lubricant when the vehicle stops and in order to prevent slow speed insuflicient the small quantity which may be found on i the edge of the member 2 at the moment break the adherence and the cohesion of the liquid, separation chambers 6 (Figs. 3, 4 and 5) may be provided formed by the interposition of rings or partitions 7 integral with the internal surface of the member 2. The chambers 6 act not only becausethe contact surface is very great but also because the Weight of the liquid in suspension is dimin= ished. 0n the other hand, the resistance to shocks combined with the'centrifugai action is found to augment proportionately to the surface.

Figures 4 and 5 show the member 2 in two diflerent positions relatively'to the brass 8, the first overhanging the brass and the sec- 0nd removed from it, but in both of which the member; 2 serves as a bearing for the dust cap 9 while it is preferable, generally speaking, to cause the member 2 to overhang the brass 8. This second arrangement may be used advantageously where the space is limited for the adaptation of the lubricating bearing to the axle.

ceive centrifugally thrown lubricant, andmeansfor leading'such lubricant-to the said passa 'e's.

2. fn a journal box, means for retaining the lubricant comprising a collecting member secured to the shaft and having a cavity facing toward the'journal, and inward and outward conical flanges formed at the edge of said member.

3. In a journal box, means for retaining the lubricant comprising a collecting member secured to the shaft and having a cavity facing toward the journal, said cavity being divided by internal annular partitions.

4:. In a journal box, means for retaining the lubricant comprising a collecting member secured to the shaft and having a cavity fac ing toward the g'ournal, said member forming a bearing for the dust guard.

In witness whereof it have hereunto setmy hand.

G. EVENO.

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