| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to sieving, crushing or mixing bucket of excavator or payloader. Crushing bucket comprises bottom plate, sidewalls (3) and working rolls (6). Working rolls are located at bucket rear to revolve about their pins (6a), to crush material therein and, at a time, to feed crushed material therefrom between said rolls (6) or there through. Note here that it comprises also cases (4) for mechanical drive and working roll bearings confined by carcass panels (4b) which allow attachment of working roll bearing cages. Working roll (6) comprises at least one crushing member (7), a solid element extending, in fact, through the entire length of pin (6a).EFFECT: higher fatigue strength.7 cl, 2 dwg |
