HYDROMECHANIC TRANSMISSION

FIELD: transport.SUBSTANCE: invention relates to fixed-ratio planetary transmission design. automatic transmission implementing six forward gears and two reverse gears contains casing (16), input link (13), output link (14), hydrodynamic torque converter and planetary reduction gear comprising three planetary gear sets, two controlled clutches and three controlled brakes. Planetary reduction gear consists of three planetary gear sets. The first planetary gear set consists of a central gear (3), carrier (2) for satellites and a crown gear (1). The second planetary gear set consists of a central gear (6), carrier (5) for satellites and a crown gear (4). The third planetary gear set consists of a central gear (9), carrier (8) for satellites and a crown gear (7). The input link (13) is connected with central gear (6 )of the second planetary gear set and with output link (15) of hydrodynamic torque converter. The output link (14) is connected with carrier (8) of the third planetary gear set and with crown gear (1) of the first planetary gear set. Brake (12) interconnects central gear (9) of the third planetary gear set and transmission casing (16). Brake (11) connects interconnected carrier (2) of the first planetary gear set and crown gear (4) of the second planetary gear set with transmission casing (16). Brake (10) connects central gear (3) of the first planetary gear set with transmission casing (16). Clutch (18) connects central gear (3) of the first planetary gear set with interconnected carrier (5) of the second planetary gear set and crown gear (7) of the third planetary gear set. Clutch (17) connects carrier (5) of the second planetary gear set connected with crown gear (7) of the third planetary gear set with interconnected central gear (6) of the second planetary gear set, transmission input link (13) and output link (15) of hydrodynamic torque converter.EFFECT: simplified design.16 cl, 18 dwg Изобретение касается конструкции ступенчатой планетарной коробки передач. Автоматическая коробка передач, реализующая шесть передач переднего хода и две передачи заднего хода, содержит картер (16), входное звено (13), выходное звено (14), гидродинамический преобразователь крутящего момента и планетарный редуктор, в состав которого входят три планетарных ряда, две управляемые муфты и три управляемых тормоза. Планетарный редуктор состоит из трех планетарных рядов. Первый планетарный ряд состоит из солнечной шестерни (3), водила (2) сателлитов и коронной шестерни