| 摘要 |
<p>An excavator bucket has front and rear lugs for holding shafts held by the hydraulic hitch of the dipper arm and each lug has an eye. The shaft position in the eye is adjustable by mounting the shaft in an inner bush which rotates eccentrically in an outer bush, which in turn lies within the eye. The inner and outer bushes are splined so that the selected throw of the inner bush is maintained. A bucket with all four lugs supplied with such bushes is described together with individual pairs of bushes for fitting to a standard bucket.</p> |
