| 摘要 |
Two worms of a worm extruder are connected to drive shafts of different lengths journaled in a transmission housing. For driving one of the worms, a first gear is keyed to the longer drive shaft and is driven by the motor gear and the electric motor. The second worm is driven by a further shaft, one end of which has a gear meshing with the second gear keyed to the short drive shaft so that the gear of this further shaft and the gears of the two drive shafts lie in a common plane. The further shaft is driven by a gear meshing with the motor shaft or by a separate motor. With this apparatus torque distribution is improved and the number of gears and components of the transmission is reduced.
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