Year1
- 规格：
- 600mm
- 规格：
- 600mm
- 材质：
- 合金
r %%>The utility model relates to a pile driver, specifically a drill bit for drilling into strongly weathered rock, including a flange core tube blade pin. The drill bit cover consists of a drill bit and a drill tip plate. The upper end of the core tube is fixedly connected to the flange, and the lower end is connected to the drill bit cover through a pin shaft and an ear plate. The core tube is provided with spiral blades, and the drill head has a drill tip plate in a circular array. The spiral The lower end surface of the blade is provided with a drill wing, which is characterized in that the alloy cutter heads are tooth-shaped, there are alloy cutter heads in a staggered array on the drill tip, alloy cutter heads are spaced on the drill tip plate, and the alloy cutter heads on adjacent drill tip plates In a staggered arrangement, the blades are provided with drill wings at intervals, and the drill wings are provided with alloy cutter heads. The drill wings on the spiral blades on both sides are arranged in a staggered manner. Due to the above structure, the utility model has a novel structure and reduces the alloy cutter head and The contact surface of the strongly weathered rock formation increases the pressure exerted by the alloy cutter head on the strongly weathered rock and can cut and break the tunnel in separate layers without leakage. <
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