engleski

Examining the Possibilities for Using Coupled Two-carrier Planetary Gears in Two-speed Mechanical Transmissions

The following paper reviews all of the possible cases of coupled two-carrier planetary gears with four external shafts. An emphasis is made on the work of these gears with one degree of freedom, one input and one output shaft and brakes on the other two shafts. When switching over the gears, the speed ratio of the gear is changed, thus allowing the use in two-speed mechanical transmissions of technological lifting and other machines. Some relations are deduced for determining the speed ratios of all structural schemes. This allows the choice of those schemes that provide the desired ratio of the two speeds in the output shaft.

coupled planetary gears; structural analysis

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