US1383309A - Mine-car wheel - Google Patents

Description

F. E. JOHNSON.

MINE CAR WHEEL.

APPLICATION FILED NOV. 10, 1919.

Patented July 5, 1921.

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"UNITED STATES PATENT OFFICE.

FRANK E. JOHNSON, 0F SALT LAKE NESE STEEL COMPANY,

MANGA- MINE-CAB WHEEL.

Specification of Letters Patent.

Application filed November 10, 1919. Serial No. 336,956.

To all whom it may concern:

Be it known that I, FRANK E. JOHNSON, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Mine-Car eels, of which the following is a specification.

My invention relates to mine cars, and more particularly to a method of attaching Wheels to said cars.

The general object of my invention is to improve the construction of mine car wheels and related parts, whereby the wheels may be loosely mounted on the axles and means provided for removably securing the wheels to the car in such manner as to permit the same to be readily applied and removed.

Another object is to improve mine car wheel construction for successful commercial use.

This invention relates more particularly to that type of mine car wheels that are made of alloyed metal, preferably of manganese steel, and which wheels are provided with bushings forced or driven into the hubs for free rotation on the axles, the bushings having a special formation for cooperation with a ring or the like whereby the wheels may be readily applied to or removed from the cars.

The above and other objects may be readily observed from. the drawings, in which Figure 1 is an elevational view of a mine car axle housin and wheels including the preferred embmTiment of my invention;

ig. 2 is a vertical sectional view through line 22of Fig. 1;

Fig. 3 is a vertical 33 of Fig. 1; and

Fig. 4 is a vertical sectional view of a tion view taken on line porof a wheel and axle construction show- 111%8. modification of my invention.

he form in which 1 have chosen to illus trate my invention includes a housing 5 having upstanding members 6, through which bolts or rivets pass for fastenin the housing to the mine car (not shown). referably the housing is made as a single casting with the interior portion formed with an intermediate space, but slightly larger than the axle 7 and at the ends enlarged for receiving roller bearings 8. The ends of the housings 5 are formed with external flanges 9. The wheels 10 may be of any Patented July 5, 1921.

material, but preferably are made of mangrinding, therefore it may be readily under-,7

stood that it is next to impossible to smooth the interior of the hubs 11 of manganese wheels so as to have a true bearing with the axles, hence the bushings 12 are used. The wheel bearings are made by inserting the bushing members 12 in the hubs of the wheels 10. Preferably the bushings are closed at the outer ends, as at 13, while the rear ends of the bushings are open and are formed with external flanges 14 preferably slightly smaller in diameter than the flanges 9 on the housings 5.

Referring to Fig. 2, it will be observed that the axle 7 is inserted through either end of the housing 5 and is maintained in position by the roller bearings 8; The rollers 8 are retained between shoulders '15 formed in the housings and at the outer ends by rings 16 which lie in recesses 17 formed in the outer ends of the housings. A lubricant is introduced into the housing through an opening closed by a cap 19, arranged preferably at some convenient place in the housing. In the drawings this is shown as arranged at mid-position of the housing so that lubricants may be supplied equally to each part of the housing. When the axle is in place in the bearings and the end plates or rings 16 positioned, the wheels 10 are then mounted on the ends of the axles, the parts being arranged so that the inner ends of the bushings 12 bear against the retaining rings 16 for the purpose of maintaining the rollers 8 in position and also for the purpose of keeping the lubricant within the housings.

F or securing the wheels to the housings I provide a split ring comprising top an bottom portions 20 and 21 suitably fastened together by bolts 22 passing throu erly disposed apertured ears 23.

are formed with internal flanges 24 and 25, the flanges 24 being adapted to extend into a groove formed between the shoulders 14 on the bushings and the rear portions 26 of the wheel hubs 11, while the flanges 25 hook h prop he rings over the flanges 9 on the housings 5. Preferably the flanges 24'and 25 have internal grooves 27 in which suitable packing rings may be inserted. The internal flanges 24: and 25 are so arranged as to shape and size as to permit a slight play of the wheels on the axles, but no play is permitted between the rings and flanges 9 on the housings. When the topand bottom portions 20 and 21 of the rings are secured together by the bolts 22 the whole serves as a means for not only removably securing the wheels to the axles of the housings, but also as a leak-tight joint preventing the escape of any lubricant or oil of any sort from the interior of the housing. This feature is important, as oil of course is readily inflammable, and if scattered about in mine runways may readily become ignited resulting in serious consequences.

In F ig. 4 I have shown a modification wherein no bushing is employed in the wheel, but instead the inner end of the hub of the wheel is provided with an annular flange 29 of substantially the same diameter as the flange on the housing 5. For cooperating with the flanges 9 and 29 to retain the wheel 30 in proper position onthe axle 7, I provide a two-part retaining ring similar to the one shown in Figs. 1--and 2 but with the diameters of the inner flanges 31 and 32 the same. In this construction I provide the face of theflanges 31 and 32 with oil retaining packing rings as shown in Fig. 2.

It will readily be observed that the wheels made in accordance with my invention and secured to mine cars by the split rings of my invention may readily be applied to or removed from the cars. It is necessary only to jack up an end of the car for the removal of the wheel, which is accomplished by rem0ving the bolts 22 and taking off the retainin ring, whereupon anew wheel may be applie or the old one replaced after it has been adjusted. It is possible in my invention to reduce the outlay spent on damage to mine car wheels, and it is possible to apply one or as many as desired with less loss of time than with the use of any other construction.

I claim:

1. In a mine car, in combination, a loose axle, a housing for supporting said axle on the car, bearings for said axle supported within said housing, wheels adapted for re movable association with said axle, a wheel being formed with the hub portion having a flange on the end adjacent said housing, said housing having flanges at the ends thereof which flanges are of greater diameter than the hub flanges,-means for removably retaining said wheels on said axle including a ring composed of several segments, said ring having a groove formed in its interior for receiving the flange on the housing to prevent bodily movement longitudinally thereof and rovided with an annular shoulder for hooking engagement with the flange on the wheel.

2. In a mine car, in comblnation, a loose axle, a housing for supporting said axle on the car, bearings for said axle sup orted within said housing, wheels adapted or removable association with said axle, a wheel being formed with the hub portion having a flange on the end adjacent said housing, said housing having flanges at the ends thereof which flanges are of greater diameter than the hub flanges, means for removably retaining said wheelson said axle including a ring composed of several segments, said ring having a groove formed in its interior for receiving the flange on the housin vent bodily movement longitudinall of and provided with an annular shoulder for hookingengagement with the flange on the wheel, and said ring provided with an to preinternal recess for receiving a packing element to prevent the escape of oil through said ring.

Signed at Salt Lake City, Utah, this 18th day of Oct, 1919.

FRANK E. JOHNSON.

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