US1336555A - Locomotive construction - Google Patents

Description

G. M. EATON.

LOCOMOTIVE cousm'ucnow.

APPLICATION FILED MAY 7, 1917.

2 SHEETSSHEET I.

wimasses: INVENTOR George M, Eaton G. M. EATON.

LOCOMOTIVE CONSTRUCTION.

APPLICATION FILED MAY7,1917.

Patented A r. 13, 1920.

2 SHEETS-SHEET 2.

)fM Gewge/Mfazo BY 6 W, Y I Afi'oRNEY UNITED STATES PATENT OFFICE.

GEORGE M. EATON, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR, TO W'ESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

LOCOMOTIVE CONSTRUCTION.

Application filed May 7, 1917.

To all whom it may concern:

Be it known. that I, GEORGE M. EATON, 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 Locomotive Construction, of which the following is a specification.

My invention relates to electric locomotives and particularly to locomotives that are provided with jack shafts and rod connecting means between the propelling motors and the driving wheels thereof.

One object of my invention is to provide a locomotive of the above indicated character that shall have the bearing housings of the motor armature connected to the motor frame in a manner to advantageously with stand the stresses and strains to which the same are subjected when the locomotive is in operation.

Another object of my invention is to provide a locomotive that shall have the propelling motors thereof located above the driving wheels and shall be provided with a connecting rod and a jack shaft for transmitting the driving effort of the motor to the driving wheels. The propelling motor is provided with armature bearing housings that are secured to the motor frame by means of bolts, which are disposed parallel to the connecting rod, and the motor frame issecured to the locomotive side frames by a plurality of bolts which are disposed parallel to the connecting rod.

In a locomotive of the type under consideration, it is customary either to mount the armature bearing brasses directly on the motor frame or to provide housings for the bearing brasses which are mounted on the bearing frame. However, in many cases, it is impractical to mount the bearing brasses directly upon the motor frame, by reason of the length of the motor armature and the length of the bearings required, so that it is essential to provide the motor with re movable armature bearing housings.

In locomotives now in service, which are provided with motors having removable armature bearing housings, the housings are secured to the motor frame by bolts which are either disposed in a vertical or in a horizontal plane. Accordingly, if the connecting rod which joins the motor to the jack Specification of Letters Patent.

Patented Apr. 13, 1920.

Serial No. 167,088.

shaft is disposed at an angle other than a right angle to the side rods of the locomotive, then the bolts which join the bearing housings to the motor frame are subjected to a heavy bending moment or to a severe shear when the locomotive is in operation.

However, in a locomotive constructed in accordance with my invention, the armature bearing housings are provided with seats which are perpendicular to the connecting rod and are secured to the motor frame by means of bolts which are disposed parallel to the connecting rod so that the bolts, during the operation of the locomotive, will be subjected to comparatively small bending moment.

In the accompanying drawing, Figure l is a side elevational view of a locomotive constructed in accordance with my invention, Figs. 2 and 8 are side elevational and plan views of the armature bearing housing illustrated in Fig. l of the drawing, and Fig. 4 is a side elevational view of the lower half of the motor casing, showing the armature bearing housing mounted thereon; Fig. 5 is a top plan view of a part of the locomotive side frame and adjacent parts, showing the seat for mounting the motor frame.

Referring to the drawing, a locomotive l embodies a cab 2, two pairs of driving wheels 3 and 4f, auxiliary wheels 5, 6 and 7, and side frames 8. A jack shaft 9, having cranks 10 mounted thereon and located 011 the side frames 8, is located adjacent to the driving wheels 3 and 4 and is connected thereto by means of side rods 11.

A motor 12, having an armature 13, is mounted on the side frames 8 above the driving wheels 3 and 41 and is secured to the side frames by bolts 14 or by any other ap proved means. The armature 13 is provided with a shaft 15 having cranked disks 16 mounted thereon. The cranked disks 16 of the armature 13 and the cranked disks 10 of the jack shaft 9 are connected together by means of connecting rods 17.

The bearing brasses for the armature shaft 15 are mounted in bearing housings 20 that are mounted on the motor frame 21 in a manner to advantageously withstand the thrusts of the connecting rod 17. Each housing 20 embodies a body portion 22 and a cap 23 which is secured to the body portion 22 by means of the stud bolts 24 and the frame 21. of the motor is provided with a V-shaped seat 25 therein for supporting the bearing housing 20. One portion 26 of the seat 25 for the bearing housing being disposed in a plane perpendicular to the connecting rod 17. The bearing housing 20 is secured to the motor frame 21 by means of bolts 27 which are disposed parallel to the connecting rod 17. Moreover, the housing 20 is provided with flanges 28 that extend along the sides of the motor frame 21, as indicated in Figs. 2 and 3 of the drawing, for preventing lateral displacement thereof. Recesses 29 are provided in the body portion 22 of the housing 20 for receiving the nuts which secure the bolts 27 in position.

The frame 21 of the motor 12 is provided, at each end with an extension 30 fitting into a V-shaped seat 31 on the side frames 8 of the locomotive. The extension 30 is disposed parallel to the connecting rod 17 and is secured to the side frames 8 by means of bolts 32 which are disposed parallel to the connecting rod 17. 7

.From the above description, it may be noted that the bolts 27, which secure the housing 20 to the motor frame 21, and the bolts 32, which secure the motor frame 21 to the side frames 8' of the locomotive, are disposed parallel to the connecting rod 17 and are subjected to onlya tensile strain during the operation of the locomotive.

Modifications in the structure and arrangement and location of parts may be made within the spirit and scope of my invention, and such modifications are intendcd to be covered by the appended claims.

I claim as my invention:

1. In a locomotive, the combination with a motor having an armature and armature bearing housings, and a jack shaft located adjacent to said motor, of an inclined connecting rod for joining said armature to the jack shaft and means disposed parallel to. the connecting rod for securing the armature bearing housings to the motor frame.

2. In a locomotive, the combination with a motor having an armature, and bearing housings having V-shaped seats in the motor frame, of a connecting rod joined to said armature and means for securing said housing to the motor frame, said means being located parallel to said connecting rod.

3. In a locomotive, the combination with a plurality of driving wheels, a motor located above said wheels, and means comprising an inclined connecting rod for transmitting the driving effort of the motor to the driving wheels, of a bearing housing for supporting the armature of said motor, said housing having a seat extending perpendicular to said connecting rod.

1. In a locomotive, the combination with a motor having an armature, and an inclined connecting rod joined to said armature, of

a bearing housing for said armature having a seat extending perpendicular to the direction of the thrust of said connecting rod, and means located parallel to 'theconnecting rod for securing the housing to the motor frame.

5. In an electric locomotive, the combination with a truck frame, of a jack shaft mounted on said truck frame, an electric motor having a portion of its frame inclined and seated on said truck frame, said motor comprising an armature and its shaft, a bearing housing for said armature shaft mounted on said motor frame and adapted to be lifted vertically therefrom, an inclined rod connecting the armature shaft and jack shafts, and bolts parallel to said connecting rod for securing said bearing housing to said motor frame and said motor frame to said truck frame.

6. In a locomotive, the combination with a plurality of driving wheels, a jack shaft located adjacent to the driving wheels, and a motor mounted above the driving wheels, of an inclined connecting rod for joining the motor armature to the jack shaft, side rods for joining the ack shaft to the driving wheels, and bearing housings for the motor armature having seats extending perpendicular to said connecting rod.

7. In a locomotive, the combination with a plurality of driving wheels, a jack shaft located adjacent to said driving wheels, and a motor having an armature and located above said driving wheels, of an inclined connecting rod for joining the motor armature to the jack shaft, a bearing for said armature having a housing seat perpendicular to the connecting rod, and bolts for seen-ring the bearing to the motor frame which are located parallel to the connecting rod.

S. In a locomotive, the combination with a plurality of driving wheels, a jack shaft located adjacent to said wheels, a side rod for connecting the jack shaft to the driving wheels, and a motor having an armature and located above said driving wheels, of

a connecting rod for joining the motor armature to. sa d ack shaft, said connecting rod being angularly located relative to the side rod, a bearing for said armature having a housing provided with a seat which ex,- tends perpendicular to the connecting rod, and means located parallel to the connecting rod for securing the housing to the motor frame.

9. In a locomotive the combination with side frames, a jack shaft, and an inclined connecting rod for transmitting the driving effort of the motor to the jack shaft, and

auxiliary supporting means located parallel to the thrust of said connecting rod for join-.

ing the motor to the side frames of th locomo i 10. In a locomotive the combination with side frames, a jack shaft, and a motor -'mounted on said side frames, of an inclined connecting rod for transmitting the driving 5 effort of the motor to the jack shaft, auxiliary supporting means for said motor having a seat extending perpendicular to the connecting rod, and a plurality of bolts located parallel to the connecting rod for securing the motor to the locomotive side frames. 10

In testimony whereof I have hereunto subscribed my name this 26th day of April,

GEORGE M. EATON.

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