Exhaust powder valve-free type air distribution two-way pneumatic down hole hammer applied to deep hole complex stratum

Abstract

The invention discloses an exhaust powder valve-free type air distribution two-way pneumatic down hole hammer applied to a deep hole complex stratum. The technological pneumatic down hole hammer has atwo-way impact function. The exhaust powder valve-free type air distribution two-way pneumatic down hole hammer applied to the deep hole complex stratum comprises a pressure torque transmitting assembly, a tail air distribution assembly, an air cylinder piston air distribution assembly, a drill bit and a drill bit torque transmitting assembly. The novel two-way pneumatic down hole hammer has thecapacity of rapidly impacting compaction drilling pore-forming in a soil layer and loosened sand and gravel stratum, the pore wall is smooth, is not prone to collapse and the drilling quality is high,the problem of difficult pore-forming when the down hole hammer drills hard rock, crushed zones and complex stratums with nonuniform weakness is solved, deep smooth drilling pore-forming in the complex stratums can be realized, the advantages of two-way pneumatic down hole hammer technology are played to a maximum extent, and the application range of the two-way pneumatic down hole hammer technology is greatly widened.

Description

technical field [0001] The invention belongs to the field of hole-forming construction in drilling engineering, and is a tool suitable for pneumatic hole-forming in deep-hole complex formations, in particular to a valveless, gas-distributing, two-way pneumatic down-the-hole hammer capable of discharging powder. Background technique [0002] Among the existing hole forming technologies, the pneumatic down-the-hole hammer is an effective way to solve the problem of difficult hole forming in complex formations. Especially in complex formations such as hard rocks, broken zones, weak and uneven, pneumatic DTH hammers are more efficient and effective than ordinary drilling such as long auger drilling, but in complex formations such as hard rock formations, broken formations and uneven formations During the drilling, the pneumatic down-the-hole hammer is also prone to accidents such as drill sticking and buried drilling, causing the down-the-hole hammer to be unable to be pulled ou...

AI Technical Summary

Problems solved by technology

To solve the problem of difficulty in forming holes, low efficiency and slow progress when the two-way pneumatic DTH hammer encounters boulders and boulders in complex formations such as hard rocks, broken zones, and weak unevenness

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