US1323281A - Journal-box eor dynamo-electric machines - Google Patents

Description

G. H. F. HOLY.

JOURNAL BOX FOR DYNAMO ELECTRIC MACHINES.

Patented Dec. 2,1919.

c M .m N A J D E L H N 0 H A C U P DI A 2 SHEETS-SHEET Q N m INVENTOR Geo/7919. IL.- #0444 BY 'ATTIORNEY G. H. F. HOLY.

JOURNAL BOX FOR DYNAMO ELECTRIC MACHINES.

APPLICATION FILED JAN. 5, 19].).v 1,323,281 Patented Dec. 2,1919.

2 SHEETSSHEEI 2- g INVENTOR Geo/ye fift /704;.

AT'i'ORNEY WITNESSES UNrrn srarns nann GEORGE E. r. HOLY, or rrrrssunen, PENNSYLVANIA, Ass sNon TO WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY, A oonreRATIoN or PENNSYLVANIA.

JOURNAL-BOX FOR DYNAIVZO-ELEC'IRIC MACHINES.

Specification of Letters Patent,

Patented Dec. 2, 1919.

Application filed. January 5, 1915. Serial No. 574.

To all whom it may concern:

Be it known that I, GEORGE H. F. HOLY, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Journal- Boxes for Dynamo-Electric Machines, of which the following is a specification. I

My invention relates to journal boxes for dynamo-electric machines, and it has special reference to bearing-housings and supporting means therefor in electrical locomotives and the like.

One of the objects of my invention is to provide a simple, compact and rugged bearing-housing and a supporting-frame member therefor comprising a locomotive sideframe, for example. V

Another object of my invention is to pro vide a structure of the above-indicated character which may be readilydismounted without disturbing adjacent apparatus beneath the floor of the locomotive and with a. minimum of inconvenience, time and labor.

In the prior art, bearing-housings have been assembled in supporting frames by means of a relatively large number of bolts that extend substantially parallel to the axis of the motor shaft. As a result, the removal of housings has required considerable longitudinal space, which, in many instances, could be obtained only by the removal of adjacent apparatus. I

According to my present invention, I provide a locomotive side-frame, or a motor frame having a recess of substantially circular contour, with a shaft bearing housing adapted to fit in the recess of the frame and to be secured therein by means of a pair of bolts located on the respective sides of the shaft and extending through the housing and into the frame in a plane substantially perpendicular to the shaft. Both-the bearing and the housing are preferably of a split type wherein the top parts may be first removed and then the lower part of the bearing may be readily rotatedout of the housing.

If desired, the lower part of the housing may also be rotated out of the frame recess to the top of the shaft and taken out. The overhauling of the bearing and also of the housing, if desired, may thus be readilyaccomplished without disturbing adjacent apparatu on the locomotive.

. In the accompanying drawing, Figure l is a view, chiefly in end elevation but with parts broken away, of a dynamo-electric machine and a locomotive side-frame con- 'here shown comprises a suitable supporting member, such'as a locomotive side-frame 1,

that is provided witha suitably located machined recess 9. of circular contour and a plurality of relatively small side openings 3 and 4: located beneath the recess 2 for a purpose to be describeda dynamo-electric machine, of any suita le type, comprising a stator 5 which may be securedfto the side frame 1 by means of a plurality of bolts 5, a rotor Gthat is provided with a centrallylocated shaft 6 anda split bearinghousing 7, having split bearing brasses 7 a and 7*, for suitably supporting the. shaft 6*. and adapted to fit within the recess 2 ofthe side frame 1.

The bearing-housing 7 comprises an upper cap member 8 and alowermember 9 which fits directly in the recess 2. The cap vmemberv 8 may be secured to the member 9 cap member 8 through the member 9 and the sideframel to the side openings 3 and 4., respectively. A plurality of suitable nuts 13" are screwed on the upper ends of the bolts 11, and other nuts 13 are disposed upon the lower ends of the bolts within the openings 3 and 4E. The bolts 11 thus extend as chords of the circular recess 2, or in other words, are disposed substantially perpendicular to the axis of the shaft 6.

Assuming the parts to occupy the positions shown themethod of disassembly is as follows: The shaft 6 may first be suitably externally supported, by means of a lifting jaclr, for example. The upper cap member 8 may be removed by taking out the bolts 10, and the upper bearing brass 7 may also be takenout. The bolts 11 may next be removed, whereupon the lower member 7 may be rotated out of the housing, and, if desired, the lower member 9 of the bearing-housing may be rotated out of the recess 2 to the upper side of the shaft 6 and completely removed- However, in some types of machines it may be impracticable to provide su'liicient clearance to permit such rotativc movement of the housing, but this will probably not constitute any great disadvantage, inasmuch as a removal of the complete housing is not often required. In any case, the removal of the bearing in the manner recited, may readily and conveniently be provided for. The convenience and the time and labor-saving qualities of the construction hereinbefore described is thus evident. Moreover, in case the lower member 9 of the bearing-housing becomes broken, a new member may be constructed to the accurate dimensions of the machined recess 2 and, consequently, the position of the rotor 6 within the stator 5 may be made exactly the same as was the case with the old housing member 9.

Reference may now be had to Figs. 5 and 6, wherein the structure shown comprises a motor half-frame 1 f having a centrally-located machined end recess 15, a stator mem ber 16 having a centrally-located shaft 16, top-end-plates 17 and a bearing-housing 18.

The housing 18 comprises an upper cap 'member 19 and a lower member 20 that fits in the frame recess 15. The member 20 is provided with a pair of apertured sidemembers or projections 21 between which the capmember 19 rests. A pair of corresponding apertured lugs 22 are disposed on the motor frame 14 near the recess 15. A pair of through-bolts 23 respectively extend through the lugs 22 and the corresponding projections 21, and a pair of suitable nuts 24 may be screwed on the threaded ends of the bolts 28, which of course, may extend either upwardly or downwardly,'as may be found convenient. A suitable key member 25 may also be located near the bottom of the recess 15 to aid in positioning the member 20. Although the bearing bra-sees are not shown, it will be understood that they are employed in a similar manner to that shown in Figs. 1 and at. For securing the cap member19 to the lower member '20, a plurality of through-bolts 26 may be 60 mp llv -v 1.

A single pair of'boltsthat extend substantially perpendicular to the shaft 16 thus secure the two parts of the bearing housing together.

The method of disassembly of the structure just described will be readily comprehendedby reason of its similarity to the structure -shown in Fig. 1 and from the corresponding description.

I do not wish to be restricted to the specific structural details or arrangement of parts herein set forth, as modification thereof'may be made within the spirit and scope of my invention. I desire, therefore, that only such limitations shall be imposed as are indicated inthe appended claims- I claim as myv invention:

1. A shaft bearing comprising a stationary semi circularly recessed supporting frame, a lower bearing-housing member secured within the recess of said frame by means accessible entirely from the exterior of said frame, and an upper member secured to said lower member independently of said frame.

2. A shaft bearing comprising a supporting frame having a recess, a split bearing housing seated in said recess, a split bean ing inclosed within said housing, a plurality of bolts extending through the parts ofsaid housing for securing the same together, and separate bolts extending through only one portion of said housing and said frame for securing said housing within said recess.

3. A shaft bearing comprising a stationary frame having a substantially semi-cylindrical recess concentric with the axis of the shaft and an exterior flange extending laterally from said recess, a semi-cylindrical lower bearing member seated within said recess, a plurality of substantially parallel bolts extending through said lower member and said flange for securing said member in place, and a bearing cap secured to said lower member.

4. A shaft bearing comprising a stationary frame having a substantially semi-cylindrical recess therein concentric with the axis of the shaft, a lower bearing member seated in said recess, means for preventing ber in place, said memberhaving upwardly extending lugs through which said bolts pass, and'a cap disposed between said lugs and secured only to sa d member.

6. A'shaft bearing comprising a supporting frame having a recess of substantially cylindrical contour, a split bearing housing having a lower member seated within said recess, said lower housing member having a recess for containing oil on each side of the shaft, a plurality of bolts for securing said lower member. in place, a cap for said housing, and means independent of said bolts for securing said cap in place.

7. The combination with a supporting frame member having a recess, of a split bearing-housing disposed therein, a split bearing inclosed within said housing, and a plurality of bolts extending through said frame member and said housing in a comion plane thereof, whereby the top members of the housing and bearing may be removed and the lower bearing member then rotated out ofthe housing.

8. The combination with a supporting frame member having a recess of circular contour, of a split bearing-housing disposed therein and comprising an upper and a lower member and a plurality of bolts for securing the members together, a pair of cooperating bearing-brasses respectively inclosed within said housing members, and a pair of bolts extending through said frame member and the lower housing member in a common plane thereof, whereby, upon removal of said bolts, the upper housing member and the upper bearing-brass may be first removed and then the lower bearing-brass and the lower housing member may be rotated substantially 180 and also removed.

said seat and comprising a lower housing member, bolts parallel to the plane of said side-frame for securing said housing member within said bearing seat, and an upper housing member secured to said lower member.

10. The combination with a locomotive side-frame having a shaft bearing recess therein of substantially semi cylindrical contour concentric with the axis of the shaft, of a motor-frame member secured to the interior of said side-frame adjacent said bearing recess, a motorshaft bearing mounted in said recess and comprising a lower housing member, bolts parallel to the plane of said side-frame and accessible entirely from the exterior side thereof for securing said lower housing member within the recess of said side-frame, an upperhousing member, and bolts parallel to the firstmentioned bolts for securing the upper housing membertothe lower housing memher.

In testimony whereof, I have hereunto subscribed my name this SOth'day of Dec, 1914:. V

GEORGE F. HOLY. Witnesses:

GoLDm E. MOGEE, B. B. HINES.

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