Method of making rings for gears having internal or external too

Details Method of making rings for gears having internal or external too Method of making rings for gears having internal or external too

1993-09-24

1996-03-12

Echols, P. W.

Metal working

Method of mechanical manufacture

Gear making

2989337, 74DIG10, 242 4R, F16H 5514

Patent

active

054975484

ABSTRACT:
To reduce the mass of internally or externally toothed gears, a thin metal ring having internal or external toothing is made and bonded to a ring of fibrous composite material. Furthermore, to make rings for gears having internal or external toothing, fabric hoses of fibrous composite materials having a fibre orientation of .+-.45.degree. are applied in a number of layers in the peripheral direction to the bottom and side flanks of a U-shaped groove-like depression of a rotating production device; the remaining free space in the interior of the applied fabric hose layers is filled with a unidirectionally wound roving, thereby forming an integral ring after the curing or hardening. Moreover, to make rings for gears having internal or external toothing, two thin-walled rings of fabric laminates serving as shear walls and having a fibre orientation of .+-.45.degree. for taking up the shear load and comprising carbon-fibre-reinforced plastics or plastics with other reinforcing fibres are adhesively bonded after the curing to a unidirectional winding applied between the annular shear walls of the rings for taking up the bending load.

REFERENCES:
patent: 1501026 (1924-07-01), Guay
patent: 3741287 (1973-06-01), Mittman
patent: 4237175 (1980-12-01), Kobayashi

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