| 摘要 |
The gearbox comprises: a pair of coaxial input shafts, that is, an inner input shaft (10) and an outer input shaft (12), a first, upper output shaft (14), a second, lower output shaft (16), and an intermediate, reverse-gear shaft (18). A driven gearwheel (34) for the fourth gear and a driven gearwheel (38) for the reverse gear are idly mounted on the opposite ends of the upper output shaft (14), the driven gearwheel (38) meshing with an intermediate gearwheel (39) idly mounted on the intermediate, reverse-gear shaft (18). A driven gearwheel (36) for the sixth gear and a driven gearwheel (31) for the first gear are idly mounted on the opposite ends of the lower output shaft (16). A first driving gearwheel (24) is fast for rotation with one end of the outer input shaft (12) and meshes both with the driven gearwheel (34) for the fourth gear and with the third driven gearwheel (36) for the sixth gear. A second driving gearwheel (21) meshing with the driven gearwheel (31) for the first gear and a third driving gearwheel (28) meshing with the intermediate gearwheel (39) are fast for rotation with the opposite end of the inner input shaft (10). The third driving gearwheel (28), the driven gearwheel (38) for the reverse gear and the intermediate gearwheel (39) are straight gearwheels. |
