Patent ID: 8343006
Filing Date: 2013-01-01
Classification: F16H

Abstract:
1. A transmission, comprising a power input shaft, a power output shaft, a single-row planetary gearset, a compound planetary gearset in front of which the single-row planetary gearset is disposed, gear-shifting members, a center support and a casing, wherein, the gear-shifting members comprise at least two brakes and a first, a second and a third clutch arranged between the single-row planetary gearset and the compound planetary gearset, and the brakes and clutches are disposed in such a manner that: the third clutch is disposed immediately behind the single-row planetary gearset; the first clutch is disposed at an outer side of the third clutch; the first brake is disposed behind the third clutch; the second clutch is disposed behind the first clutch and at an outer side of the first brake; and the second brake is disposed behind the second clutch and the first brake; and wherein the components of the transmission are connected with each other in such a manner that: the power input shaft is fixedly connected with an outer hub of the third clutch and a ring gear of the single-row planetary gearset, an inner hub of the third clutch is connected with a planetary gear carrier of the compound planetary gearset by means of a shaft, and the planetary gear carrier of the compound planetary gearset is connected with the shaft by means of a spline; an outer hub of the first clutch is fixedly connected with an outer hub of the second clutch and is connected with a planetary gear carrier of the single-row planetary gearset, an inner hub of the first clutch is fixedly connected with a shaft of a rear sun gear of the compound planetary gearset, and the rear sun gear is connected with the shaft by means of a spline; an inner hub of the second clutch and an outer hub of the first brake are respectively fixedly connected to a shaft of a front sun gear of the compound planetary gearset, and the front sun gear is connected with the shaft by means of a spline; an inner hub of the first brake and an outer hub of the second brake are respectively fixedly connected with the center support and are located inside the center support, and the center support is connected to the casing of the transmission by means of a flat key, an inner hub of the second brake is fixedly connected with the planetary gear carrier of the compound planetary gearset; and the power output shaft is fixedly connected with a ring gear of the compound planetary gearset.