Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Expanded-tip type anchor cable drill bit and using method thereof
The invention relates to an expanded-tip type anchor cable drill bit. The expanded-tip type anchor cable drill bit comprises a slurry outlet, a drill bit tip and a drill bit main rod, wherein the drill bit is in the shape of a circular clone, and is made from a tungsten steel alloy; the drill bit main body is axially provided with a plurality of rows of concave arc surfaces, three concave arc surfaces are uniformly distributed in one row; and a drill tooth is connected on each concave arc surface through a hinge. The expanded-tip type anchor cable drill bit has the beneficial effects that; while the expanded-tip type anchor cable drill bit rotates clockwise, the drill tooth is in a shrinkage state under action of soil pressure; while the expanded-tip type anchor cable drill bit rotates anticlockwise, the drill tooth is slowly opened under action of soil pressure and centrifugal force until the drill tooth is completely opened; the drill bit main rod and the drill tooth of the expanded-tip type anchor cable drill bit are connected through a hinge, so that drill teeth of different thicknesses can be replaced according to the size of the diameter of the expanded tip of the expanded-tip type anchor cable; and the expanded-tip type anchor cable constructed by the expanded-tip type anchor cable drill bit is expanded on the end part of the anchor cable, and a special expanded-tip reinforcement is replaced, so that the expanded-tip type anchor cable drill bit has better support and protection effect relative to a common anchor cable with the same diameter and depth.
本发明涉及一种扩大头式锚索钻头，包括：出浆口、钻头尖和钻头主杆；钻头尖呈圆锥状，由钨钢合金制成；钻头主杆沿轴向设有若干排凹弧面，每排均匀分布有三个凹弧面，每一个凹弧面上通过铰链连接一颗钻齿。本发明的有益效果是：扩大头式锚索钻头顺时针转动时，在土压力的作用下，钻齿呈收缩状态，扩大头式锚索钻头逆时针转动时，在土压力和离心力的作用下，钻齿会慢慢张开，直至完全张开；扩大头式锚索钻头的钻头主杆与钻齿用铰链连接，可以根据扩大头式锚索扩大头的直径大小更换不同厚度的钻齿；用扩大头式锚索钻头施工出来的扩大头式锚索由于锚索的端部进行了扩大，同时放置了特制扩大头钢筋，比相同直径和深度的普通锚索具有更好的支护作用。
Expanded-tip type anchor cable drill bit and using method thereof
The invention relates to an expanded-tip type anchor cable drill bit. The expanded-tip type anchor cable drill bit comprises a slurry outlet, a drill bit tip and a drill bit main rod, wherein the drill bit is in the shape of a circular clone, and is made from a tungsten steel alloy; the drill bit main body is axially provided with a plurality of rows of concave arc surfaces, three concave arc surfaces are uniformly distributed in one row; and a drill tooth is connected on each concave arc surface through a hinge. The expanded-tip type anchor cable drill bit has the beneficial effects that; while the expanded-tip type anchor cable drill bit rotates clockwise, the drill tooth is in a shrinkage state under action of soil pressure; while the expanded-tip type anchor cable drill bit rotates anticlockwise, the drill tooth is slowly opened under action of soil pressure and centrifugal force until the drill tooth is completely opened; the drill bit main rod and the drill tooth of the expanded-tip type anchor cable drill bit are connected through a hinge, so that drill teeth of different thicknesses can be replaced according to the size of the diameter of the expanded tip of the expanded-tip type anchor cable; and the expanded-tip type anchor cable constructed by the expanded-tip type anchor cable drill bit is expanded on the end part of the anchor cable, and a special expanded-tip reinforcement is replaced, so that the expanded-tip type anchor cable drill bit has better support and protection effect relative to a common anchor cable with the same diameter and depth.
本发明涉及一种扩大头式锚索钻头，包括：出浆口、钻头尖和钻头主杆；钻头尖呈圆锥状，由钨钢合金制成；钻头主杆沿轴向设有若干排凹弧面，每排均匀分布有三个凹弧面，每一个凹弧面上通过铰链连接一颗钻齿。本发明的有益效果是：扩大头式锚索钻头顺时针转动时，在土压力的作用下，钻齿呈收缩状态，扩大头式锚索钻头逆时针转动时，在土压力和离心力的作用下，钻齿会慢慢张开，直至完全张开；扩大头式锚索钻头的钻头主杆与钻齿用铰链连接，可以根据扩大头式锚索扩大头的直径大小更换不同厚度的钻齿；用扩大头式锚索钻头施工出来的扩大头式锚索由于锚索的端部进行了扩大，同时放置了特制扩大头钢筋，比相同直径和深度的普通锚索具有更好的支护作用。
Expanded-tip type anchor cable drill bit and using method thereof
一种扩大头式锚索钻头及其使用方法
MAO YINGBIN (Autor:in)
12.05.2020
Patent
Elektronische Ressource
Chinesisch
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