For planetary gears, the fixed ring gear connects the sun wheel and the planet carrier, but does it still move?
Before and after the two planetary sun gear is connected into a whole, called the sun before and after the wheel assembly (2) in front of a ring gear planetary frame of the planetary row and a planetary connection to another one, called the former planet and ring gear assembly
(3) the output shaft is usually connected with the forward planetary gear and the rear ring gear assembly (Fig. 7-4). Thus, the mechanism becomes one of these 4 independent components, and is (1) the front ring gear (2), the rear sun wheel assembly (3), and the rear star bracket
(4) before and after the star frame ring gear assembly; according to the different number of forward stalls, the Simpson type planetary gear box is divided into Simpson type 3 speed planetary gearbox and Simpson Thompson type 4 gear planetary gear box two.
