The utility model discloses a broken seam and for water sediment water under the crushing device comprises a knife holder and a holder rotatably mounted horizontally with the broken shaft, broken shaft and the driving mechanism are in transmission connection, a propeller blade broken shaft, propeller blade including reverse rotating left and right leaf blades. The blade is in the left half of the broken shaft, the blade is located at the right side on the right side of broken shaft, broken shaft is also provided with a plurality of cutting teeth, the distribution of spiral cutter on broken shaft, which are arranged in the spiral propulsion blade surface propulsion, distributing spiral screw and the location of the propeller blade rotation to the same; the knife is provided with a baffle, the baffle is a semi enclosed structure package to promote the upper and rear blade in the spiral baffle, middle and broken in the middle of the shaft is correspondingly provided with a suction port. The utility model can rapidly break underwater sediment and hard ore seams, and the fragments are gathered and sucked away from the middle suction port. The utility model has the advantages of reliable work, easy wear and long service life.
【技术实现步骤摘要】
【技术保护点】
一种水下破碎装置，其特征在于包括刀架，刀架上可转动地水平安装有破碎轴，破碎轴与驱动机构传动连接，所述破碎轴上设有螺旋推进叶片，所述螺旋推进叶片包括旋向相反的左侧叶片和右侧叶片，左侧叶片位于破碎轴左半侧，右侧叶片位于破碎轴右半侧，破碎轴上还设有若干截齿，所述截齿在破碎轴上呈螺旋分布，且布置在螺旋推进叶片的推进面背面，截齿分布的螺旋旋向与所在位置的螺旋推进叶片旋向相同；所述刀架上设有挡板，所述挡板呈半包围结构包裹在螺旋推进叶片上部和后部，挡板中部与破碎轴中部对应设有吸料口。
【技术特征摘要】
【专利技术属性】
技术研发人员：张立明，王勇，谭昌晶，吴前锋，
申请(专利权)人：江苏省水利机械制造有限公司，
类型：实用新型
国别省市：
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