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    • 9. 发明申请
    • CUTTER HEAD FOR LONGWALL SHEARER
    • 长刀切割头
    • US20140265528A1
    • 2014-09-18
    • US14211163
    • 2014-03-14
    • Joy MM Delaware, Inc.
    • Michael L. O'Neill
    • E21B3/00
    • E21C1/00E21C27/10E21C35/12
    • A cutter head for a longwall shearer includes a drum, a vane, and a plurality of cutting bits. The drum includes a first end and a second end and defines an axis of rotation extending therebetween. The vane is connected to the drum and extends in a helical manner along at least a portion of the axis. The vane defines an edge surface extending along an outer perimeter of the vane. The cutting bits are secured to the vane edge surface. Each cutting bit includes a block and a bit coupled to the block. The block is secured to the edge surface and extends beyond the outer perimeter of the vane.
    • 用于长壁切割机的切割头包括滚筒,叶片和多个切割钻头。 滚筒包括第一端和第二端并且限定其间延伸的旋转轴线。 叶片连接到滚筒并沿轴线的至少一部分以螺旋方式延伸。 叶片限定沿着叶片的外周延伸的边缘表面。 切割钻头被固定到叶片边缘表面。 每个切割位包括块和耦合到块的位。 该块被固定到边缘表面并且延伸超过叶片的外周边。