DRIVE GEARBOX ON A TURBOMACHINE, CONSISTING OF A DRIVE TRAIN WITH GEAR LINES EXTENDING INTO NON-PARALLEL PLANES

摘要

This A gearbox to be mounted on a turbomachine and driven by a radial drive shaft of the latter. The gearbox has a three-dimensional or sinuous shape, which can house a large quantity of equipment to be driven, without occupying a large amount of space in any dimension, since the gearbox remains close to the turbomachine and the equipment can be distributed over a large surface. The drive train of gears successively extends into several non-parallel planes and comprises an axial branch on the turbomachine and a branch forming an arc of circle around the turbomachine.

主权项

1. A gearbox to be fixed to a turbomachine in order to drive at least one piece of equipment annexed to the turbomachine, comprising a casing, a drive train internal to the casing and comprising a series of gears, as well as a drive member intended to mesh with a transmission shaft of the turbomachine, with the casing comprising fastening points to the turbomachine and to the equipment, wherein the drive train comprises at least two gear lines located in non-parallel planes and connected together by a junction gear to a junction interface, comprised of a pair of gear wheels with non-parallel axes, of which, at least one end line housed in an end casing branch that has a main extension in a substantially axial direction of the turbomachine when the box is fixed to the turbomachine, and another line housed in an intermediate casing branch substantially in the portion of a circle, substantially perpendicular to the end branch and which surrounds a portion of circumference of the turbomachine when the box is fixed to the turbomachine.