The invention provides an adjustable miniature underground pipeline boring cutter head, by setting the knife head shell, will be cut into soil shell and shell in two parts, is conducive to cut the shell and shell of soil, the soil will not cause damage; the blade radial position and cutting angle adjustable the design of the blade is set, spirally arranged, can reduce the edge of each blade size, thereby reducing the power requirement; equal cutting force and can realize each blade, and the knife and the fixed knife with adjustable force equal to the whole body, force balance, forward thrust can provide an axial in when cutting, the cutter head along the axial direction to move forward; in addition, according to the different characteristics of the soil, can adjust the blade cutting angle, cutting speed, reduce tool wear, cutting to ensure the flow of soil The service life of the cutter head can be improved by replacing cutters with different shapes.
【技术实现步骤摘要】
【技术保护点】
１．一种可调式微型地下管道掘进刀头，其特征在于：包括外壳切削机构、主体切削刀具和带钻头心轴（２）；外壳切削机构包括刀头外壳（１）和周向刀片（４）；刀头外壳（１）为薄壁圆筒形结构，在其一端的内壁面和外壁面上均匀交替开有若干刀槽，周向刀片（４）固定安装在刀槽内，刀刃方向朝向带钻头心轴的旋转方向，刀刃与刀头外壳（１）轴向的夹角为４５°～６０°；主体切削刀具包括有若干组切削刀具组件（３），每组切削刀具组件（３）包括刀片（５）、可调刀架（６）、固定刀架（７）、刀架连杆（８）和刀架调节件；固定刀架（７）两侧有连接孔，分别用于与刀头外壳（１）和带钻头心轴（２）固定连接，带动刀头外壳（１）随带钻头心轴（２）同步转动；固定刀架（７）中部有凹槽，凹槽底部伸出有带螺纹孔的刀架调节件安装板；可调刀架（６）下部置于固定刀架（７）中部凹槽内，并与固定刀架（７）轴连接，可调刀架（６）可绕连接轴转动；可调刀架（６）中部有凹槽，可调刀架上部有刀片固定槽，刀片（５）安装在刀片固定槽上，并且刀片（５）在刀片固定槽的安装位置可调节；刀架调节件包括调节螺杆（１０）和连接块（９），连接块（９）中部有凹槽，凹槽底面有通孔，调节螺杆...
【技术特征摘要】
【专利技术属性】
技术研发人员：葛文杰，王舟，张林，曹小宝，胡玉龙，孙丽军，文学，
申请(专利权)人：西北工业大学，
类型：发明
国别省市：87
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