| 摘要 |
Gear system for driving screws of a twin-screw extruder with two parallel drive shafts (1, 2) of different length, of which the longer drive shaft (1) bears a drive gear wheel (3). The shorter drive shaft (2) has rotationally fixed connection by way of a pinion (6) to three distributor shafts (13, 14, 15), which can be driven from the longer drive shaft (1) by way of an annular gear wheel (20) which has internal teeth (19) and, on the distributor shafts (13, 14, 15), gear wheels (16, 17, 18) intermeshing with these teeth. On the longer drive shaft (1), there is a pinion (5) directly intermeshing with the pinion (6) of the shorter drive shaft (2). In order to achieve good division of the loads, the annular gear wheel (20) also has outer teeth (21) which intermesh with gear wheels (22, 23) of two intermediate shafts (24, 25), which intermesh by way of further gear wheels (26, 27) with the drive gear wheel (3). |
