Ring gear for an epicyclic reduction gear
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United States of America Patent
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Jun 23, 2020
Grant Date -
Oct 18, 2018
app pub date -
Oct 13, 2016
filing date -
Oct 16, 2015
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Abstract
A method for aligning toothing in an assembly of two half-ring gears is provided:
- an angular positioning pin is provided which is to be received in respective holes of the half-ring gears;the holes are drilled on the first half-ring gear such that the first hole has a first cross-section that is smaller than the final cross-section thereof;the angles between the teeth are compared between the two half-ring gears, and an angular difference between said angles of the half-ring gears is deduced therefrom;the first hole is redrilled to the final cross-section, while the centre of the hole is angularly shifted by the value of the angular difference;the pin is engaged in the holes, and the half-ring gears are then assembled using an interference fit.
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