AUTOMOTIVE GEARBOX Russian patent published in 2013 - IPC F16H3/44 F16H59/14 

FIELD: transport.

SUBSTANCE: gearbox comprises planetary step-down helical gearbox and automatic system of shifting from 1^st to 2^nd gear. Said planetary reduction gear consists of drive shaft 1 supporting crown gear 2 with drive disc secured thereat, sun gear 3 running on driven shaft 4 with carrier 5 rigidly secured thereat with axles 6 and pinions 7 engaged with crown and sun gears. Automatic gear shifting system consists of friction coupling with its drive discs 8 coupled via splines with crown gear and driven discs coupled via case 10 and disc with pinion axles and carrier and with driven shaft of centrifugal weights 11 with springs 12, and automatic sun gear control system. Said automatic sun gear control system comprises braking element consisting of body 14 rigidly fitted at sun gear hub and splines of drive discs 15, driven discs 16, throw-in ring 18 coupled via two-arm levers 19, 20 and link 22 with crown gear. Cases of coupling 10, disc 26 and axles of pinions 6 and carrier are rigidly interconnected. Extreme left drive disc of coupling 27 is bolted to crown gear. Slave arms of centrifugal weights with sleeves at their ends are pressed via working springs to crown gear for compression of coupling discs.

EFFECT: higher reliability.

1 dwg