Gearbox for an agricultural tractor

Details Gearbox for an agricultural tractor Gearbox for an agricultural tractor

1979-08-13

1981-06-30

Husar, G. J.

Machine element or mechanism

Power take-off

From shaft extension

74665GA, 74740, 74783, F16H 3700

Patent

active

042756081

ABSTRACT:
A speed change gearbox for agricultural tractors and similar vehicles has an elongate casing rotatably mounting input and output shafts which are coupled by gearing comprising reduction means selectively operable to provide one of a plurality of reduction ratios, and a final gearing stage which serves to set a particular range of ratios. The reduction means includes an epicyclic gear mechanism provided with associated hydraulic control means for selectively controlling movement of various of its elements, and pairs of continuously meshing gears operatively selectable by further hydraulic control means. The arrangement of the hydraulic control means is such that they are all centered on the input shaft which enables the transverse bulk of the gearbox to be minimized.

REFERENCES:
patent: 2776572 (1957-01-01), Walter
patent: 2800803 (1957-07-01), Bechman et al.
patent: 2871726 (1959-02-01), Kamlukin
patent: 2923176 (1960-02-01), Randt
patent: 3357276 (1967-12-01), Vavulo et al.
patent: 3722301 (1973-03-01), Crooks

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