Novel hydraulic piston sampling machine tool
A hydraulic piston, a new type of technology, applied in the direction of sampling devices, etc., can solve the problems of no core protection mechanism, single drilling function, and use restrictions, so as to increase the sampling speed, eliminate the suction effect at the bottom of the hole, and eliminate the hidden danger of sample falling off Effect
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[0025] Such as figure 1 As shown, in the new hydraulic piston sampling tool of this embodiment: the piston drill bit 1 is connected with the lower end of the hollow rod 5 by a thread, the upper end of the hollow rod 5 is connected with the lower end of the upper piston 13 by a thread, and the upper end of the upper piston 13 is connected with the lower end of the main shaft 15 Threaded connection, the main shaft 15 is a hexagonal columnar or flat active drill rod structure, relative to the main shaft 15 and can move axially along the main shaft 15 torsion joint 16 sleeved on the main shaft 15, the torque transmission joint 16 and the main shaft 15 are synchronized together Rotate, the lower end of the torque transfer joint 16 is threadedly connected with the upper end of the cylinder block 14. The inner diameter of the torque transfer joint 16 is larger than the inner diameter of the cylinder block 14. The inner cavity of the cylinder block 14 and the upper piston 13 are sliding...
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