PLANETARY GEARBOX WITH TWO SUN WHEELS

摘要

The invention relates to a drive with a speed-reducing planetary gearbox which is integrated into a housing, a drive motor which acts upon a peripheral web mounted on at least two planets, said individual planets rolling on one first sun wheel arranged in the housing and also on a driven second sun wheel. The subtraction of the number of teeth of the second sun wheel from the number of teeth of the first sun wheel gives an even-numbered number of differential teeth. The number of planets is equal to the number of differential teeth and all planets have the same number of teeth. Either at least one sun wheel has a profile shift or the individual planet has a separate toothing in addition to the profile shift(s) of the sun wheels for the respective engagement with the individual sun wheel. According to the invention, a drive which enables a speed-reducing gear ratio requiring a small amount of space without using a screw or helical gear transmission, is developed.