US1684405A - Journal-bearing construction - Google Patents

Description

Sept. 18,1928.

J. s.-McwH|R-r ER JOURNAL BEARING CONSTRUCTION Filed Aug. 5, 1926 WWK N N INVENT OR fm 6. Mg wimr Patented Sept. 1K8, 1928A. uiairian STATES; PATENT OFFICE.

JOHN S. MGWHIBTER, SOU'HPORT, CONNECTICUT. r

J OURN A13-BEARING CONSTRUCTION.

Application filed August 3, 1926y Serial 110,126,761.

This invention relates to a new journal bearing construction for use on railway mo,- tors.

One oi' the objects of this invention is the provision of a solid housing for supporting railway inotors in combination lwith my novel means for securing the bearing hrasses or sleeves within the housing. A

A, 'further obj ect of this invention is to provide a. construction of the solid type which is adapted to be easily assembled or taken apart. y

Al further object ot this invention is: to provide a bearing housing which is simple and easy to construct, and to keep in adjustment,

and which may readily be adjusted to` over come any wear. i 4

These andinany other obyects, as will ap-l pear iii tliefollowing description, are secured by my lnovel construction. I

This invention resides substantiallyin the.

' section, with parts broken away, showing 'a' modified method of mounting the wedge keyt The present construction has beendevised toprovide a solid housing to be used for' mounting, railway motorsinstead ofthe split housing as has been used in railway motors and asdisclosed in my oopen'ding application, Serial No. 728,825, iil'ed July 29, 1924.

It has been toundV in actual practice that the split type of 'housing is subject during actual operation, to becoming loose and worn, so that there is danger ot the parts becoming separated when this is not desired. By means of the solid housing, there is no `possibility ofthe bearings working loose as a result of the clamping bolts being loosened as in the split hearing type. With the bearing being made detachable from the housing of the motor, instead of being formed thereon, as in the old split bearing type, individual bearing fits may be obtained by machining and applying the bearing to the axle in the machine shop at the time the wheels-are A'mounted place, or when other repairsare made to the axle, instead of kattempting to `titv thesbearings to the axle at the time. the motor is mounted.` ln. using thistype of housing itwill be necessary to slip both the commutator end andthe pinion end housing over the wheel fitto the center ci the axle i before vthe wheels Vare mounted, after which. the split lining maybe machined to iit: the-axle, kat which time the housing may be. slipped back in position `by sliding it over the outside of thebronz'elining. rlondo this,.however, as will appear inthe following description, it will 'be necessary Ato remove the wedge key used for tightening the linings within the housing until. the lining is in its proper place.` Y

The two following arrangements are adaptedto accomplishthesepurposes. V

V Referring to Figures 1. and. 2, the` axle .is shownat .1,z on .which is mounted the wheel.l The bea-ring housing 3 hastwo diametrically opposite horizontal projections land An integralextension 6 is supported on. the motor. :trame or end housing 6 and. comprisesa cone cave portion which lits. `over the housing proper, and'` a horizontal extension 5 which.

lies adjacent to the` extension t ot lthe housing.n The bores-4 and' Z provide sockets lfor clamping bolts, vwhich .hold the extension 6 in. `litsplace on the bearing housing. Depending: tromthe bearing housing are two .projections 8,. in which. is mounted the threaded rodill,

vpivoted to one oi the. extensions at `ligandtitting. withinthe. notch 9y in thegother extenf sion. A. nut. I2, cooperating with a. washer:

13, having: a small projection. fitting intoV the notch,y as shown, serves.- tov securey the threaded rod 11V inplace. Mounted. on the threaded rod isa sli'dableA wedge keyL 16having a notch 17l therein, within which' theynut 15 isv mounted.4 VBy threading` the 'nut 15V backend forth upon the `rod 1.1,"tlie wedge key l'inay be caused to move longitudinally of the bearing. The bearing brass or lining 18 may be made of a single pieceof material, having a longitudinal slot therein to or'm an interrupted cylinder, or the bearing brass may be made in two approximately semicircular parts, each being a little less than a semi-circle, so that when they are itted together, they form an interrupted cylinder.

The reduced or tapered end ,2O of the wedgeu key 16 is adapted to move backwards and forwards within the slot 19,`i`:ormed in the bearingv lining. The opposed edges otthe ico slots are tapered, so that as the Wedge key moves in one direction itserves toV expand the lining Within the housing to tightly clamp it in place, and When moved in the opposite direction itserves to permit the lining to contract and become loose in the housing, so that i `it may be readily removed.

A modification is shown in Fig. 3, Where the shaft 1 is shown as before, and the 'lining 18 is provided with the longitudinal slot V14',

as above described. The vvedge key 21 is rigidly secured to the threaded rod 22, which extends through the bearing housing, indicated this time at 24, and has mounted thereon, the nut 23, which cooperates with the housing 24 to draw the Wedge 21 to the ri ht, in which direction of lmotion it causes the ining 19 to expand into clamped relationwith respect to the housing, as will be readily apparent. 18* representsV aspacing Washer or ring which serves to space the housing from the wheel, and to prevent the entrance of dirt andgrit to the bearing, and the escape of oil @Figures 1 and 2,"the nut 12 and Washer 13V therefrom. Y

"It will be seen from the foregoing description, that when it is desired to remove the bearing lining in the modification shown in may be removed, and the rod 11 swung down about its pivot Vto removethe Wedge key out of the longitudinal slot in the bearing lining. The lining may then be slid longitudi# """i nally of the shaft, toaid in itsremoval.` In

Vthe modification shown in Fig. 3, the nut 23 may be removed, and the Wedge 21 and its extension 22 removed out of the housingA *n alongwith the bearing lining.

In actual commercial operation, it has been found that this particular method of mounting the motorson the axle, has many practical advantages which make v`it far more desirable than the spl-it housing ftype of motor support. With this typeof construction, the

bearin s may be bored by machine to t the individual axle bearing seat on which it is to beused, applied to the axle and clamped in place before the shipment is made of the wheel and axle equipment. It will be readily apparent, of course, that mounting bearings in the solid housing affords a very much more rigidconstruction from a mechanical stand-l point than is secured in the split type of tion and relativev arrangement of parts will readily suggest themse vesjto those skilled in theart, and I do not, therefore, desire to be limited to the particular construction disclosed herein, but rather to any construction Vembodying the principles of my invention,

as I define them in the'appended claims.

What I seek to secure by UnitedStates Letters Patent, is :-A n v Y 1. In a bearing construction, the combination With a frame forming a solid bearing housing, of `a bearing lining in said housing having a longitudinally extending slot com-K pletely interrupting said lining, saidhousing aving a slot in alignment with the slot`in said lining, movable means to move in the slot in said lining and means including a threaded rod-pivotally mounted on saidhousing and a member on said rod and engaging said movable means to movethe same in the slot in saidlining to expand it into en agement .with said housing.

2. In a caring construction, the combinar tion with a bearing housing, of a liningfor y extending f i through the slot in said housing and adapted said housing having a slot therein, a Wedge adapted to movel in said slot, a threaded rod pivotally mounted on said housing and a nut on said rod adaptedA to engage said Wedge to move it in said slot. p

3. In a bearing construction, the Vcombination with a bearing housing, of a lining for said housing having a slot therein, a Wedge adapted to move in saidA slot, a threadedrod pivotall mounted on said housing, a'nut on s aid ro to engage Vina notch in said Wedge to cause the Wedgefto move `and means engaging the free end'of said rod and the hous-` ing to hold the rodfin" a position so thatthe nut engages the notch in saidlwedge.

In testlmonyrwhereof` I have hereunto set my hand on this 21st day of J ulylA. D .,`1926.`

JOHN s. isaevvrrnrrnn..Y 1.

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