Reduction gear for propeller turbine or aircraft engine; has intermediate gear, input gear on drive shaft, driven gear on propeller shaft and elastic elements between intermediate and gear casings

摘要

The reduction gear has a drive shaft (1) connected to a low pressure turbine and an axial propeller shaft (2). An input gear (3) is arranged on the drive shaft, which meshes with an intermediate gear element (4) rotatably supported in an intermediate casing (5) and engaging a driven gear (6) fixed to the propeller shaft. The intermediate casing is fixed against rotation and slides radially in a gear casing (7). Several elastic elements (8) are distributed around the periphery between the gear casing and the intermediate casing. A distance sensor acts as a torque sensor to measure the relative movement between the intermediate casing and the gear casing.