| 摘要 |
A power mining shovel including a carbody, an upper frame rotatably mounted on the carbody, a dipper handle mounted on the upper frame for pivotal movement relative thereto, a dipper mounted on the dipper handle, a crawler track assembly supporting the carbody for movement over the ground, a motor which is mounted on the carbody and which has an output shaft, a drive train drivingly connecting the motor output shaft to the crawler track assembly, the drive train including a drive shaft drivingly connected to the crawler track assembly, and a propel transmission which is drivingly connected to the drive shaft and which is driven by the motor output shaft, and a disc brake apparatus operably connected to the drive train for selectively preventing rotation of the drive shaft.
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