Multi-stage gearbox
First Claim
1. A multi-stage gearbox, with a drive input shaft (1) connected to a reduction planetary gear set (VS), with a drive output shaft (3) arranged non-coaxially to the drive input shaft (1) and connected to a main planetary gear set (NS), with shift elements (A, B, D) that act on the reduction planetary gearset (VS) and shift elements (M, H, L) that act on the main planetary gear set (NS), such that by selective actuation of the shift elements (A, B, D, M, H, L) an input speed (n) of the drive input shaft (1) can be transferred for the engagement of at least seven forward gears at the drive output shaft (3) in such manner that to shift from one gear to the next-higher or next-lower gear of the shift elements actuated at the time in each case only one shift element is disengaged and one other shift element is engaged wherein the reduction planetary gear set (VS) comprises just one output shaft (2) rotating at an output speed (nvs) of the reduction planetary gear set (VS), the main planetary gear set (NS) can be connected to the drive input shaft (1) by means of at least one second shift element (M, H) acting on the main planetary gear set (NS) via a first spur gearwheel stage (ST11/ST12) of a spur gear arrangement ST, and the main planetary gear set (NS) is connected to the output shaft (2) of the reduction planetary gear set (VS) via a second spur gearwheel stage (ST21/ST22) of the spur gear arrangement (ST).
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Accused Products
Abstract
A multi-stage gearbox with a drive input shaft connected to a reduction planetary gear set, with a drive output shaft connected to a main planetary gear set, and with shift elements. An input speed of the drive input shaft can be transferred, by the engagement of at least seven forward gears to the drive output shaft, in such manner that to shift from one gear to the next-higher or next-lower gear, only one shift element is disengaged and another shift element is engaged. The reduction planetary gear set has an output shaft rotating at an output speed of the reduction planetary gear set. The main planetary gear set is connected to the drive input shaft. The main planetary gear set is connected to the output shaft of the reduction planetary gear set.
322 Citations
13 Claims
- 1. A multi-stage gearbox, with a drive input shaft (1) connected to a reduction planetary gear set (VS), with a drive output shaft (3) arranged non-coaxially to the drive input shaft (1) and connected to a main planetary gear set (NS), with shift elements (A, B, D) that act on the reduction planetary gearset (VS) and shift elements (M, H, L) that act on the main planetary gear set (NS), such that by selective actuation of the shift elements (A, B, D, M, H, L) an input speed (n) of the drive input shaft (1) can be transferred for the engagement of at least seven forward gears at the drive output shaft (3) in such manner that to shift from one gear to the next-higher or next-lower gear of the shift elements actuated at the time in each case only one shift element is disengaged and one other shift element is engaged wherein the reduction planetary gear set (VS) comprises just one output shaft (2) rotating at an output speed (nvs) of the reduction planetary gear set (VS), the main planetary gear set (NS) can be connected to the drive input shaft (1) by means of at least one second shift element (M, H) acting on the main planetary gear set (NS) via a first spur gearwheel stage (ST11/ST12) of a spur gear arrangement ST, and the main planetary gear set (NS) is connected to the output shaft (2) of the reduction planetary gear set (VS) via a second spur gearwheel stage (ST21/ST22) of the spur gear arrangement (ST).
Specification