| 摘要 |
The invention relates to a multi-stage gearbox comprising six or seven forward gears and three reverse gears. Said multi-stage gearbox also has three planetary gear sets (P1, P2, P3), six rotary shafts (1, 2, 3, 4, 5, 6) and six gear-shifting elements (03, 04, 13, 14, 15, 35, 36, 46). Shaft (1) is connected to the drive (An) and the sun gear of the planetary gear set (P2); shaft (2) is connected to the output (Ab) and the ring gear of the planetary gear set (P3); shaft (3) is connected to the ring gear of the planetary gear set (P2); shaft (4) is connected to the connecting bar of the planetary gear set (P3); shaft (5) is connected to the ring gear of the planetary gear set (P1), the connecting bar of the planetary gear set (P2) and the sun gear of the planetary gear set (P3); and shaft (6) is connected to the connecting bar of the planetary gear set (P1). The sun gear of the planetary gear set (P1) is connected to a housing (G) of the gearbox in a rotationally fixed manner, shafts (3, 4) can both be coupled to a housing (G) of the gearbox by means of a brake (03, 04), and the clutch (14) detachably connects shaft (1) to shaft (4), the clutch (36) detachably connects shaft (3) to shaft (6), the clutch (46) detachably connects shaft (4) to shaft (6), and another clutch (35, 13, 15) is provided for detachably connecting shaft (3) to shaft (5), shaft (1) to shaft (3), or shaft (1) to shaft (5).
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