| 摘要 |
An excavator attachment 1 for fracturing a pipe includes a main body section 20 in the form of a hook 22, a hydraulic ram (42, fig 3) with a pipe engaging portion 30. The ram moves the pipe engaging portion into contact with the pipe allowing fracturing when pressure is increased. The pipe engaging portion is preferably a plate having a curved profile with a projection 34 in the centre. The device may consist of two parallel plates (fig 3,4) making up the hook section and the pipe engaging section may also comprise two parallel plates. The device is preferably arranged to be attached to a standard quick coupler and includes hydraulic couplings to connect with the hydraulics of the excavator. |
