| 摘要 |
In a power shovel having a main support unit, a front end assembly operatively connected to the main support unit and a rope crowd system mounted on the main support unit and operatively connected to the front end assembly, a crowd drive assembly for the rope crowd system comprising a rope drum mounted on a support frame supported on the main support unit, a drive shaft journaled in the support frame adjacent the tangential point of the crowd rope wound on the rope drum, transversely spaced means disposed on the drive shaft for transmitting torque to the rope drum and an appropriate motor and gear arrangement supported on the main support unit for driving the drive shaft.
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