Transmission unit for vehicles
A technology for transmissions and vehicles, applied in transmissions, differential transmissions, control devices, etc., can solve problems such as transmission damage and deterioration of meshing behavior.
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[0028] With reference to the above drawings in particular figure 1 , it can be seen that the transmission device of the present invention includes a drive shaft generally marked as 1, and a pinion 11 meshing with the crown gear 2 is arranged on the end of the drive shaft.
[0029] As shown in more detail in FIG. 2, the crown wheel has a central bore 21 adapted to receive a drive shaft and two identical and opposite cavities 22 and 23, which, as will be explained below, 23 accommodate the same number of planetary gears.
[0030] The crown wheel 2 is preferably made of copper in order to facilitate the machining of the gear teeth, the abutments 21 , 22 and 23 and also the meshing of the gear teeth with the pinion 11 of the drive shaft 1 .
[0031] The end 30 of one of the two driving shafts marked 3 is longer than the thickness S of the crown wheel 2 .
[0032] The diameter of said end 30 is substantially equal to the diameter of the bore 21 of the crown wheel, but with limite...
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