Resiliently centered railway truck suspension

Details Resiliently centered railway truck suspension Resiliently centered railway truck suspension

1974-02-27

1977-01-18

Spar, Robert J.

Railway rolling stock

Trucks

Bogie

105136, 105175A, 105195, 105199R, B61F 114, B61F 306, B61F 520, B61F 524

Patent

active

040033171

ABSTRACT:
A secondary suspension for use on a railway three-axle truck frame. Each of the three axles are equidistantly spaced from one another and driven by a respective traction motor mounted on bearings on each axle and additionally supported by the truck frame. The truck also has a suitable traction load connection for attachment to a locomotive chassis. The secondary suspension comprises three laminated metal and rubber pads positioned between the upper surface of the truck frame and the locomotive chassis. Two of the pads are positioned forwardly of the central axle of the three axles, and to a respective side of the central longitudinal axis of the truck frame. The other pad is positioned on the central longitudinal axis rearwardly of the central axle. The spacing of the pads, relative to the central axle, is predetermined whereby the resultant force of the chassis load is applied forwardly of the central axle with all three pads being equally loaded by the chassis whereby this resultant force will balance the resultant force of the truck sprung masses which is rearwardly of the central axle thereby giving a net resultant rail force substantially at the central axle.

REFERENCES:
patent: 975303 (1910-11-01), Vauclain
patent: 2150116 (1939-03-01), Farr
patent: 2954747 (1960-10-01), Hirst et al.
patent: 3212456 (1965-10-01), Dilworth et al.
patent: 3257969 (1966-06-01), Thomas
patent: 3361085 (1968-01-01), Bexon et al.
patent: 3447483 (1969-06-01), Lich
patent: 3451355 (1969-06-01), Dobson et al.
patent: 3451356 (1969-06-01), Lich
patent: 3738283 (1973-06-01), Burgess

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