| 摘要 |
A mineral breaker including at least one breaker drum having a plurality of breaker teeth projecting generally radially therefrom, the breaker drum being rotatably mounted for rotation in a given direction to effect breakage of mineral, each breaker tooth including a main body projecting generally radially from the drum axis and having a terminal end upon which a removable tip assembly (60) is located, the tip assembly including a tip body (61) slidably mounted by co-operating key formations (62, 54) on said terminal end of the main body and the tip body, the key formations permitting slidable movement of the tip body (61) relative to the main body (51) generally in a circumferential direction of said drum, the key formation on the main body comprising a groove (54) extending generally circumferentially along said terminal end of the main body and the key formation on the tip body comprising a projection (62) formed on said tip body, the main body and tip body having co-operating abutment faces (67, 70) for limiting slidable movement of the tip body along said groove in a circumferential direction opposite to said given rotation of the drum, and clamping means (30) co-operating with said main body and said tip body to move the tip body along said groove so as to engage said co-operating abutment faces. |
