Down-the-hole drill for hydraulic engineering construction

Abstract

The down-the-hole drill for hydraulic engineering construction comprises a base, an adjusting frame is vertically and fixedly arranged on the base, a rotating mechanism is arranged at the top end of the adjusting frame, a drill rod is arranged below the rotating mechanism, an impactor is connected to the bottom end of the drill rod, a drill bit is connected to the bottom end of the impactor, and the drill rod can be in threaded connection with the impactor. A main adjusting rod is slidably connected to the upper portion of the base, the top end of the main adjusting rod can be in coaxial threaded connection with the drill rod, the bottom end of the main adjusting rod can be in coaxial threaded connection with the end, away from the drill bit, of the impactor, and a first pushing rod is slidably connected to the upper portion of the base and is perpendicular to the main adjusting rod. The sliding direction of the first push rod is parallel to the length direction of the first push rod, and a first clamping jaw used for clamping the main adjusting rod is fixedly arranged at the end, close to the main adjusting rod, of the first push rod. The down-the-hole drill has the advantages that deep holes can be conveniently drilled through the down-the-hole drill, and the drilling cost is reduced.

Description

technical field [0001] The present application relates to the field of drilling equipment, in particular to a down-the-hole drill for hydraulic engineering construction. Background technique [0002] Down-the-hole drilling is equipment used to drill holes in rocks before engineering blasting. There are three models: internal combustion, electric and hydraulic. Drilling tools are composed of drill pipe, button bit and impactor. When drilling, use two drill rods to drill in. The rotary air supply mechanism is composed of a rotary motor, a rotary reducer and an air supply gyrator. [0003] Related technologies can refer to the Chinese patent application document with the publication number CN108868589A, which discloses a submersible drill for water conservancy construction, including a vertical rod, a rotary mechanism is installed on one side of the vertical rod, and a drill pipe is installed at the bottom of the rotary mechanism. The bottom end of the drill rod is welded wi...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the above-mentioned down-the-hole drill has a fixed length of the drill rod, and the depth of the hole is fixed. When a deeper hole needs to be drilled, a new down-the-hole drill needs to be replaced, and the drilling cost is relatively high.

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