Novel breaker pair roller

The utility model discloses a novel breaker pair roller, including roll body and ring tooth layer, the roll body is just cylindric it has penetrating shaft hole to open in the middle of the cylinder, and the annular ring tooth layer of circle passes through the bolt fastening on the roll body, the surface on ring tooth layer is equipped with the ring tooth who is made by wear -resistant material, the last interval of ring tooth is equipped with the breach, forms the tooth piece between two adjacent breachs, and a ring tooth's among two adjacent ring tooth tooth piece is adjacent with another ring tooth's breach, the tangent plane shape that the tooth piece is trapezoidal, this utility model reasonable in design, and broken work area is big, and crushing effect is good, and feeding, group material effect are showing, broken product granularity, particle shape qualification rate height. 本实用新型公开了种新型破碎机对辊，包括辊体和环齿层，所述辊体为圆柱状且所述圆柱中间开有通透的轴孔，且圆环状的环齿层通过螺栓固定在辊体上,所述环齿层的外表面设有由耐磨材料制成的环齿，所述环齿上间隔设有缺口，相邻两个缺口之间形成齿块，且相邻两个环齿中的个环