Variable-ratio speed regulation device
A technology of speed regulating device and variable speed ratio, which is applied in the transmission of mechanical power, control of wind turbines, components of wind turbines, etc., and can solve problems such as grid harmonic interference and poor ride-through ability
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[0022] Example: such as figure 1 As shown, the present invention includes:
[0023] Input shaft 1 is connected to the output shaft of the wind turbine gearbox;
[0024] The output shaft 7 is connected to the input shaft of the generator, and has the same axis as the input shaft 1;
[0025] The sun gear 2 is installed on the output shaft 7;
[0026] The differential gear 4 is a gear with internal teeth and external teeth, fixed on the differential gear frame 41, and the differential gear frame 41 is installed on the planetary gear frame 31 at the end of the input shaft 1 through a bearing, coaxial with the sun gear 2 Heart; the differential gear 4 meshes with the motor wheel 5 and the planetary wheel 3 respectively, and has different transmission ratios with the motor wheel 5 and the planetary wheel 3;
[0027] There is at least one planetary gear 3 (three in this example), and the specific number is determined according to the output speed of the gearbox and the transmissio...
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