Flange mounting segmented plastic ring gear on a cement mixer

Details Flange mounting segmented plastic ring gear on a cement mixer Flange mounting segmented plastic ring gear on a cement mixer

B - Operations, Transporting

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B01F 9/02 (2006.01) B28C 5/08 (2006.01) B28C 5/18 (2006.01)

Patent

CA 1113085

ABSTRACT OF THE DISCLOSURE A composite gear of metal and plastic is provided and specifically a composite ring gear for a cement mixer. The ring gear for rotating the mixing drum of a cement mixer is commonly formed by stamping teeth in a metal flange circumjacent an inter- mediate portion of the mixing drum. Such gears have been noisy and lack impact resistance. The new ring gear comprises a metal flange to which is affixed a plurality of arcuate gear segments of a plastic material having gear teeth formed therein, The teeth of the plastic segments mesh with a drive pinion gear. The com- posite gear is much quieter and is also more impact resistant during operation. The segments can also be inexpensively and readily replaced, if necessary.

316942

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