Reamer bit for building long-screw pile machine
A technology of long screw pile driver and reaming bit, which is applied to drill bits, drilling equipment, earth-moving drilling, etc. The effect of improving pile quality and reasonable structure
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[0053] Examples such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the reaming drill bit for the construction long screw pile machine includes a hollow drill rod 2. The upper end of the drill rod 2 is fixedly connected with a flange 1, and the lower end of the drill rod 2 is fixedly connected with a drill point 17, so The outer wall of the drill rod 2 is fixedly connected with spiral blades.
[0054] The spiral blade includes a main spiral blade 3 and an auxiliary spiral blade 301. The main spiral blade 3 extends from the upper end of the drill rod 2 along the outer wall of the drill rod 2 to the middle of the drill rod 2. The upper end of the main spiral blade 3 is connected to Flange 1 is fixedly connected;
[0055] The upper end of the auxiliary screw blade 301 is located in the middle of the main screw blade 3, and the lower end of the auxiliary screw blade 301 extends to the middle of the drill rod 2.
[0056] The spiral direction of the main spiral blade 3 and the ...
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