| 摘要 |
A rotor assembly (14,14') for rotating and actuating a working implement (12), comprising a load-bearing shaft (20,20') adapted to be mounted to a boom member (11). Actuation means (21) are secured to the load-bearing shaft (20,20'). A drive assembly (25) is rotatably mounted about the load-bearing shaft (20,20') and is coupled to the actuation means (21). And a working implement (12) so as to transmit actuation from the actuation means (21) to the working implement (12) to drive the working implement (12) about the load-bearing shaft (20,20'). A collector assembly (30,30') is rotatably mounted to the load-bearing shaft (20,20') and is adapted to receive a pressure supply therefrom. The collector assembly (30,30') is provided with connector means (32A,62,76) adapted to provide the working implement (12) with the pressure supply. The collector assembly (30,30') is coupled to the drive assembly (25) so as to rotate therewith (21), and to substantially avoid being subjected to loads between the working implement (12) and the load-bearing shaft (20,20') or the drive assembly (25).
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