US1326326A - Locomotive gathering-reel. - Google Patents

Description

l. LE C. DAVIS AND G. M. EATON.

M. s. DAvIsA. ADMIIIISTIIATRIX 0F I. LE c. DAvIs, DECD.

LOCONIOTIVE GATHERING REEL.

APPLICATION FILED Au s.1o, IsIII.

1,326, 326. Patented Dec. 30, 1919.

B M AToRNEY UNITED STATES PATENT EEICE. i

JOSEPH LE CONTE DAVIS, DECEA-SIID, LATE CF PITTSBURGH, PENNSYLVANIA, BY

MYRA SHIELDS DAVIS, A DMINISTRATRIX, OF PITTSBURGH, PENNSYLVANIA, AND GEORGE IVI. EATON, GF PITTSBURGH, PENNSYLVANIA; SAID INVENTORS ASSIGNORS TO WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

LOCOMGTIVE GATI'IERING-REEL.

Original application led September 1S, 1911, Serial No. 649,983.

Specification of Letters Patent.

' Patented Dec. 30, 1919.

Divided and this application led August 10, 1918. Serial No. 249,483.

Adeclare to the best of our knowledge and belief that the following specification, taken In connection with the drawings furnished and forming a part of the same, is a clear,

true, and complete description of said im-4 provement, this application being a division of application Serial No. 649,983, tiled Sept. 18, 1911.

This invention relates to dynamo-electric machines and particularly to an electric motor structure adapted to be mounted on a mining locomotive to operate the gathering reel thereof, although it is to be understood that certain features of the structure are of broader application. This application is a division of our application Serial No. 6119,983, led Sept, 18, 1911, for locomotive gathering reels.

The object of our invention is to provide a device of the class above indicated that shall be simple and durable in construction and adapted to occupy a minimum amount of space, and the bearings and other wearing parts of which shall be easily accessible.

Electrically operated locomotives for mine purposes are frequently provided with conducting cables which enable them to enter sections of the mine Vwhich are not equipped with any trolley or other supply circuit conductor. yIn order to satisfactorily operate the cable and to protect it from injury, it is usually carried on a drum or gathering reel which is mounted on the loco'- motive and is usually either operatively connected to a locomotive axle, or is driven by an independent motor.

According to our present invention, we

provide a gathering reel having an independent driving motor which may be so designed as to exert a torque which varies to suit the conditions of operation, thereby producing a predetermined pull on the cable at all times. In order to save space, we mount the motor within the drum and introduce suitable gearing for driving the drum at relatively lowspeedsalthough the motor armature is adapted to operate at relatively high speeds. Furthermore, to facilitate repairs, the iield.-magnet frame of the motor is so constructed that the armature shall be readily removable and replaceable without disassembling the gathering reel and the motor frame within the reel.

Various novel features and points of advantage in the structure which we propose will be more fully set forth hereinafter and disclosed in the accompanying drawing which is a longitudinal section of a gathering reel structure embodying an electric motor constructed in accordance with our .invention Referring to the drawing, the structure here shown comprises side frame members or bearing brackets 1 and 2, which are secured to the structure of a mining locomotive, or to some other suitable base 3, an electric driving` motor 4:, a gathering reel 5, and suitable gearing. The motor 4L comprises a stationary field-magnet framey 7 having polar projections 8 and field-magnet windings 9, and an armature 10 having a commutator cylinder 11 and mounted on a relatively longl shaft '12.

The frame 7 is provided with end members or brackets having hollow cylindrical aXial projections 13 and 14, which are of reduced diameter with respect to the main part of the frame, but of slightly greater internal diameter than the armature 10 so that the latter may be readily removed aX- ially from either end of the frame without disassembling the frame 7 or the reel 5 mounted thereon. Thus, a damaged armature may be replaced by a new one without much loss of time, which is a very important consideration in apparatus of this kind. The reduced projection 14 is integral with and the other projection 13 is bolted to the main part of the frame 4 and both hollow projections are rigidly secured, at their outer ends, in openings in the side bearing brackets 1 and 2, thus rendering the armature shaft 12 directly accessible from the outer side of the locomotive, by simply removing the bearing blocks 15 and 16 which are removably fitted into the ends of the projections 13 and 14: and support the motor shaft 12 at its ends.

The reel comprises a hollow cylindrical drum 17 having flanges 1S at its ends and end spiders 19 and 2O which are rotatively supported on the cylindrical projections 13 and 1a and to which the drinn 17 is secured by bolts 21. v

The bearing blocks and 16 are held in position and sta ionary by means of pins 22 and are provided with oil pockets 23 corresponding to those in the usual railway motor armature bearings. rlhe shaft 12 is provided with oil-throwers 2l adjacent to the bearing blocks which are provided with overhanging cylindrical projections 25, forming annular chambers 26 in which the excess oil fromv the shaft bearings is collected. Oil passages 27 are provided between the chambers 2G and the bearings on the gathering reel, the arrangement of parts being such that the oil is assisted by gravity through the passages 27 into the reel bearings and, consequently, it is only necessary to keep the shaft bearings adequately lubricated.

The shaft bearings are particularly accessible, as are also the reel bearings, while the concentric arrangement of the motor and the reel permits the complete device to oc' cupy a minimum amount of space on the locomotive.

rlhe drinn 17 and the flanges 1S are preferably formed of metal, but they may be insulated by a jacket or covering 28 of treated canvas or 'some other suitable insulating material. The motor shaft 12 has a pinion 30 mounted on one end thereof, which is connected by suitable gearing (not shown) to the gear wheel 31 secured to the drum spider 20. rThe motor shaft is also operatively connected to a cable spooling device, not herein shown and forming no part of the present invention, but fully disclosed in our application Serial No. (349,983, heretofore referred to.

The gear wheels and pinions are so arranged and proportioned that, when the motor shaft operates at a relatively high speed, the drum will be rotated at a comparatively low speed, while the spooling de- -vice will be operated at a very low speed.

A collector ring 34 is secured to and insulated from the end member 19 of the gathering reel and is connected to the inner end of the cable 33 in the usual manner. The end members 19 and 20 of the reel are provided with oil groves 35 which collect the excess oil from the reel bearings and discharge it through passages 36.

The bearing blocks 15 and 16 and the sleeve projections 18 and 1st are so proportioned that the armature 10 of the motor may be taken out for repairs or removed by simply reino-ving one of the blocks. lVith this arrangement, the alinement of the n1otor and reel bearings is not disturbed.

Our invention is not limited to the structural details illustrated and various modifications may be effected within the spirit and scope of our invention.

We claim as our invent-ion:

1. The combination with a field-magnet frame having two vcylindrical end projections one of said projections being detaclr ably joined to the frame, and an armature disposed Within said frame and removable axially through either of said end projections, of supporting brackets coperating with said end projections and detachable brush holders directly mounted on said re movable end projections.

2. The combination with a plurality of side supporting members having oppositely disposed cylindrical 'recesses therein, of a mot'or frame having tubular end projections adapted to fit into said recesses, armature bearing vblocks removably mounted in said end projections, and means for rigidly securing the motor frame andthe bearing blocks to the side members, said side members having openings for supplying oil to the bearing blocks and said end projections having openings located between the side members for draining oil from the bearing blocks.

3. The combination 4with a motor frame having tubular end projections and a plurality of side supporting members having op positely disposed cylindrical recesses in them, said projections 'adapted to lit into said recesses, armature bearing blocks lo* cated in the end projections adjacent to the supporting members and means for rigidly securing said motor frame and said bearing blocks to said sidemembers.

In testimony whereof, l have hereunto subscribed my naine this 27th day of July, 1918. j y v MYRA SHIELDS DAVIS, Administratrice of Josep/L Le Conte Davis,

deceased.

In testimony whereof, I have hereunto subscribed my naine this 29th day of July,

GEORGE M. EATON.

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