An annular cluster type down-the-hole hammer

Abstract

The invention discloses an annular cluster type DTH hammer, comprising a DTH hammer body, a cylindrical cavity is arranged in the DTH hammer body, a plurality of broken hammer heads are arranged on the lower end surface of the DTH hammer body, and the DTH hammer is The body is provided with an impact sub-hammer for driving the crushing hammer to impact the rock formation, and the body of the down-the-hole hammer is provided with a storage device for collecting and storing the crushed stone powder. Crushing, can improve work efficiency, and low energy consumption, can achieve rock formation crushing of large diameter pile holes, the overall work is pollution-free, directly use the high-pressure exhaust gas discharged from the impact hammer to discharge slag, the hammer body has small vibration, and does not damage the drilling rig equipment and The hole wall is of high quality.

Description

technical field [0001] The present invention relates to a down-the-hole hammer, specifically, an annular cluster type down-the-hole hammer with simple structure, convenient use, high operating efficiency, low energy consumption, no pollution, small vibration of the hammer body, and high hole-forming quality. The utility model belongs to the technical field of drilling machinery. Background technique [0002] Rotary drilling rig is a common large-scale pile driver, which can quickly drill into rock and soil layers. It is mainly used in the construction of large pile holes. Generally, large-diameter pile holes are driven by rotary drilling rigs in hard rock environments. Wheel barrel drill for work. The barrel drilling operation method is to apply pressure to the barrel drill through the drilling rig, use the alloy cone on the barrel drill to roll and break the rock formation, and then cut out the ring groove, and use the mud circulation method to discharge the slag, and then...

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Problems solved by technology

[0005] The above-mentioned type of rotary drilling rig connects the impact barrel drill to the rotary drilling rig through the connecting party, and after the pipeline is connected, it enters the rock formation at the bottom of the hole. The drilling rig drives the impactor to rotate to realize continuous drilling deep into the rock layer, but the overall structure of this type of percussion barrel drill is complex, and the structural layout is unreasonable, the overall gas pipeline is easily damaged, and it is difficult to repair and overhaul. It is very difficult to discharge the slag chips produced by crushing rocks, and a large amount of slag chips in the hole will wear the shell of the barrel drill, greatly reducing the service life, and if the slag chips are not discharged in time, it is easy to cause damage to the hole wall, and the hole quality is poor. The existing percussion cylinder drill has high energy consumption, a large amount of high-pressure gas is seriously lost, and then consumes a large amount of air, which increases energy consumption

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