WIDE-RANGE CONTINUOUSLY VARIABLE-RATIO DRIVE

摘要

The invention relates to mechanical engineering and can be used for transport mechanical engineering, in particular in the form of a continuously variable gearbox for motor vehicles and other transport means. The inventive continuously variable-ratio drive consists of a planetary variable-ratio transformer provided with input and output links which are cinematically connected to each other by means of a control mechanism provided with a differential transmission unit. A matching transmission unit which connects the output link of the variable ratio transformer to one of the central gears of the differential transmission unit and increases a rotational velocity in this direction is arranged in the cinematic loop of the mechanism between the input and output links of the variable ratio transformer. The gear ratio value of the matching transmission unit is equal to or higher than the minimum gear ratio value of the variable ratio transformer. The output link of the entire drive is embodied in such a way that it is alternately connectable to the links of the control mechanism which comprises the differential and matching transmission units when the rotational velocities of said links are equal.