| 摘要 |
<p>The drum of a wood-comminuting machine is formed with an axially extending slot having, relative to the rotation direction of the drum, a leading flank and a trailing flank. A flat blade is clamped against the front flank of the slot by at least one wedge having converging flanks which are biased in the direction of taper by a spring. Two such wedges can be provided, one carrying the blade and the other urged outwardly by the spring to wedge the blade-carrying wedge against the back of the blade. The blade carrier is either pivoted on the drum or otherwise engaged with the drum so that it cannot move outwardly relative to the drum. In front of the blade there are formed chip pockets or concavities, which can be defined by a support member secured to the drum and forming the leading flank of the slot.</p> |
