| 摘要 |
<p>The system is used for attaching a winch to a hydraulic excavator, for operation of a number of different appliances. The cable drum is turned by a hydraulic motor driven by the excavator, large surface areas can be worked by a shield plate moving about the longitudinal axis, and a movable suspension permits compensation for differences between the excavator site and the terrain to be levelled. A series of boards are mounted on the setting appliance, outside the cavity, the appliance being hung on a loading hook and conveyed into the cavity when the boards are fitted to the walling. A grab is thrust over the scoop, so that scoop teeth are covered.</p> |
