FUSION GEAR REDUCER
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United States of America Patent
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Issued Date -
Nov 9, 2017
app pub date -
May 3, 2017
filing date -
May 3, 2016
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Abstract
A fusion gear reducer includes a first-stage gear reduction unit and a second-stage gear reduction unit both in a housing. The first-stage gear reduction unit includes a sun gear, a planet gears support, planet gears spaced around the sun gear and meshed therewith, and a ring gear around the planet gears and meshed therewith. The second-stage gear reduction unit includes spaced rollers arranged as a circle, roller grooves, wells formed on an inner surface of the housing, and a cam surface formed on an outer surface of the ring gear so that the ring gear is output of the first-stage gear reduction unit and input of the second-stage gear reduction unit. The roller grooves are disposed on outer surfaces of the planet gears so that the planet gears are output of the second-stage gear reduction unit. The simplified fusion gear reducer solves the problem of bulkiness of gear reducer.
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