Патент USA US2132890код для вставки
Oct. 11, 1938. ‘ v. A. BARY 2,132,890 LUBRICATING MEANS FOR BEARINGS Filed'July 9, 1934 2. Sheets-Sheet 1 ‘ Jn yen for : Oct. 11, 1938. ‘ V/A. BARY ' 2,132,890 LUBRICATING MEANS FOR BEARINGS Filed July 9, 1934 2 Sheets-Sheet 2 Jn ven for : 2,132,890 ' Patented Oct. 11, 1938 UNITED STATES PATENT OFFICE " . 2,132,890‘ LUBRZIOATIVNG MEANS FOR BEARINGS Victor Alexander Bary, London, England, as .signor to Walter Peyinghaus, trading as Eisen und Stahlwerk Walter Peyinghaus, Egge, near Volmarstein', Ruhr, Germany . . Application July 9, 1934, Serial No. 734,293 ‘ In Germany July "17.71933 ’ _ 1' Claim. ' (stats-as) This invention relates to axle‘ bearings for rail . v v'of ‘rotation so that‘an agitation‘ of the store ' of lubricant during the passage‘of the feed blade by a feeding'member rotating with the axis‘ is completely avoided. ‘The feed blade may be This feeding member consists in the. kept very thin and provided. with sharpened vehicles with'mechanical feed of the lubricant ' journal. . . usual manner of a feed rod to which feed blades are attached. According to the present inven-' tion, the feeding member comprises a rod-shaped ‘ center piece with feed blades arranged thereon, , the feed blades having the shape'of segments of 10 a ring and enlarged in the form of a T\ over the Width of the rod-shaped center piece. ‘The V edges. However, the feed rod must bew'compara tively strong 'to take up the centrifugalforces of the feedblade- so that should it pass through the store of lubricant it produces a strong emul sification, oxidation and premature aging of the lubricant. The passage of the feed rod through the store of lubricant was hitherto unavoidable inner edge of the feed blades, which faces the if the whole feed blade had to dip into the store axis of rotation, extends over the feed rod in of lubricant. According to the present invention, the dipping of?the whole feed blade is effected without it being necessary for the feed rod to a length corresponding to at least one half of the width of the feed rod, and. the inner edges of the feed blade, which extend over the feed rod, have with increasing distance from the center of the feed blade a decreasing ‘dis tance from the axisof rotation.~ ' ' V ' Feeding members designed according-to the invention have the special advantage ‘that 'owé ing to the peculiar shape or form'of the‘ feed blade, the lubricant taken up by‘ the feed blade during its passage through the store of lubri dip into the store of lubricant. , If the feed blades are constructed as ‘polygons ' and‘the ‘arrangement of the corner points of the polygons,’ differs according to the diiferent feed blades, ‘there results therefrom the advantageous 20 feature that the feed blades cannot assume at certain speed of the axle journal critical states ofequilibrium to‘, which the feed of the lubri cant~is subjected. ‘, These critical states of equi cant reaches the inner edge vof the feed blade librium are produced by the fact that the forces when the feed blade. has reached the highest causing; thejseparation of the lubricant and point of its path of rotation and is‘ located keeping it against the feed blade can maintain . above the collecting member ‘for the'lubricant. an equilibrium at certain velocities of rotation This collecting member is usually formed from. ' of the feed blade because centrifugal force is a projection of the bearing brass around'which the feed rod is bent. Thiscollecting member. is therefore reached by the- vlubricant with cer dependent on the velocity 'of rotation. ity acting on the lubricant draws the lubricant toward the lower corner points of'ithe feed blade. The lubricant is thereby accumulated at bounding’ edges. Owing to the different relative positions of the corner pointshthev bounding, edges of the feed blades ‘ tainty because owing to the‘,:peculiarcoursefof - have a different distance from the center of ro g the inner edge of the feed blade extendingxover tation and .a different length so‘ that the cen trifugalpfor'rces'j areneverv the same ‘at these 35 the feed rod 2. component’ of‘ the force ofrgrav _ points on the inner edge of the feed blade and the force of gravity of this ,accumulationat points is adapted to overcome theadhesion and cohesion forces with certainty'and ease ‘although the latter forces are known to be very, high in connection with the lubricant. In the caseiof 45 low speeds, the lubricant must drip down with certainty and thereby Vreachthe 0il.,.collecting member in the uppermost‘ point of the path vof rotation. V The delivered amounts of lubricant , The critical conditions of equi librium cannot occur at the same time in con-v nection with both ‘the feed blades. ‘ Inv order. to give the ‘feed blades the correct size,‘ it“ is advantageous vto provide a constant axle-‘journal diameter. The surprising fact re sults therefromthat when keeping this ratio con 45 stant the bearing surface‘ always receives the lubricantwhich is required for an adequate lubricationlfa ' I ;~* \ . _, ' ' ' The drawings, show by way of example the are comparatively large because the T-shaped enlarged feed blade has a comparatively large construction of an oil feed-rod formed according surface whereby lubricant can be taken up to to the invention, an adequate extent. ’ ‘ The bend of the feed rod may be; as shown, a less distance from the axis of rotation than 55 the inner edge of the feed blade facing the axis 40 ratiobetween‘the effective feed-blade face and the axle-journal" surface independently of the ’ ' . Fig. '1 showing a side elevation of the oil feed rod, while ~ ' Fig. 2 represents a front elevation of the same. Fig. 3, shows ‘in vertical longitudinal section 55 2 2,132,890 through an axle-bearing the arrangement of the the resultant forces which lead to the centri blade according to Figs. 1-2. fuging of the lubricant arise in the case of the The oil feed rod is according to the invention two feed blades in such a different way that one characterized the feature that the distance feed blade throws off the lubricant before the of the inner edges ‘I’, 3', 9’. and II!’ of each of other feed blade throws it off. Finally, Figs. 1 and 2 show that the feed blades the two feed blades I, 2 from the axis of rotation is smaller’ the greater the distance from the are constructed as narrow segments of a ring, so that the paths along which the lubricant slips, centre of the feed blade. In other words the dis— tance of the inner edges of the feed blades from measured in the radial direction, are shorter than the axis of rotation is gradually reduced toward" the paths, along which it is drawn, meas 10 the inner apices I8, I9 and 20, 2| so that these ured in the peripheral direction. This is worthy apices'are located closer to the axis of rotation of ‘consideration in so far as in consequence of than the remaining portion .of the edges of the , forces of inertia arising in the case of an insuffi ‘ blades. Incidentally the outer: edges of the blades cient ratio between'the paths along which the 15 are situated on the same arc with respect to the lubricant is drawn and those aiong which 15 axis of rotation. Moreover the distance of any it slips the lubricant is discharged from the feed radial line drawn from the inner ‘edge to the outer I blades before the latter have reached their posi edge of each blade is only approximatelyone- v tion above the collecting member; the lubricant half of the width of the rod support I 3. The feed consequently passes back unused into the lubri 20 blades are consequently cut back in the direction cant store, while lubricant is supplied insufficient 20 of rotation at 3, 4, Eand 8 drip-tips ‘I, 8, 9 and It ly to the bearing surface. Fig. 2 shows that the being formedsand the surface of the feed blade realization 0f a satisfactory relationship is pos beingperpendicular to thevrod-face, I I, I2 sup porting‘ the feed blade. The rod-support I3 it 25 self, which may be ?rmly connected by way of holes 24 with the axlejournal which is not illus-' trated,7 possesses at I5 and I6 outwardly arched portions which enable a catching member, which is shown in Fig. 3, to be located within rangeof the drippings and threads formed by the feed sible without thev ful?lment of the other require ments being disturbed. ' The edges ‘I’, 1", 8', 8", 9', 9'', ID’, ID", 22 and 25 23 are formed as knife-edges in a manner well known per se, in-order to prevent air from being driven into the lubricant store. They feature'that the moistened surface. of the feed blades may have a constant ratio to the member. As. is noticeable particularly from the lower parts of Figs. 1 and 2, the whole of the feed surface ofthe axle-journal, independently of the blades I and 2 together with the drip-tips ‘I-IIl scope of the invention. By means of this fea ture the supply of the requisite suf?cient quan tity of lubricant to the bearing surface is always 35 accomplished without troublesome testing of rod shaped feed members of different sizes being can consequently be dipped into the lubricant store I ‘I without the parts II and I2 of the rod support, that is the rod-support I3‘ as such, re quiring to dip into the lubricant store. Never theless fully developed drip-tips are formed, which cause the lubricant to .drip-v off with cer .40 tainty. The lubricant store is consequently trav ersed only byv the feed blades, withoutit being . possible for the lubricant store to be injuriouslyv lashed up, emulsi?ed and oxidized. As is also noticeable from. Figs. 1 and ‘2,, the bounding edges ‘I’, 'I", 8’, 8"’, 9", 9" and Ill’, ill” which a form the drip-tips, .. possess different lengths on the different feed ‘blades. The result of this is that the mutual action betweengravity, forces of adhesion, forces of cohesion and cen trifugal'forces, in ‘so- far as they interact to bring . about the dripping of the lubricant, take. place differently on theltwo feed blades, so that always ' one feed biade effects dripping with certainty diameter of the axle-journal, lies. within the necessary.‘ ' . ; Theprinciple of the invention is also realized when the faces of the rod-support carrying the 49 feed blades are not perpendicular to the face of the feed blade but ‘are at an oblique angle to the same. With this arrangement, however, there is connected the disadvantage that when the outermost diameter is given the faceo-f the feed 45 bladeis unnecessarily small; vit might, without the support having to dip into the store of lubrie cant,be increased by the amount inquestion, if the supporting face of the rod were positioned at right angles to the face of the feed blade. I claim: ’ An axle bearing comprising an axle box hous~ ing, a bearing brass adapted to receive an axle when in the case of the other feed blade certain journal, a lubricant store in said housing, feeding conditions of equilibrium of the said forces have a means adapted to- lift lubricant from said lubri 55 already occurred, the dripping during this time cant store, saidfeeding means comprising a rod being ‘discontinued, It is also-noticeable that the shaped center piece, feed blades on said center feed blades are constructed as polygonsvwhich piece, said feed blades designed as segments of .a differ from, one anether, as regards the positions ring and, extending T-shaped across the rod of their apices, so that inparticular the position shaped center piece of said feeding means, acol 60 of the apices I8, I9 of the feed blade I giving rise lecting member for the ‘lubricant in the annular to the ‘formation of threads ‘is different from the space swept over by the said feed blades during position of the apices 20, ZI'in the case of the the rotation of the feeding means, said rod other feed ‘ blade. Consequently the threads 65 formed by the feed blades cannot mutually dis shaped center piece bent aroundsaid collecting turb one another. Finally, the bounding edges member, said bend being at a shorter vdistance from the axis of rotation than the inner edge of 22,23, of the feed blades‘ I and-2', which edges act centrifugally, possess different lengths, sothat the feed blades facing the axis'of rotation. VICTOR ALEXANDER BARY. '