Fahrzeuggetriebe mit Kompensation des durch unterschiedliche thermische Ausdehnung bedingten Axialspiels

摘要

A gear change (1) for a vehicle comprising an external box (6) made from an aluminium alloy, a main group (2), a driving shaft (7) of which is adapted to be moved by an engine of the vehicle and a driven shaft (8) of which may be connected angularly with the driving shaft (7) via a plurality of pairs of gears (24 - 32) defining different transmission ratios, and an auxiliary epicyclic group (3) connected in cascade with the main group (2) in which the driven shaft (8) is loaded axially by elastic means (61) which maintain it in contact with axial abutment means (19) to ensure its correct axial positioning with variations in the play due to differential thermal expansion with respect to the box (6).