Inflow adjustable large-bore diameter impactor

Abstract

The utility model relates to an air inflow adjustable large-bore diameter impactor. The inflow adjustable large-bore diameter impactor comprises an air inlet connector, a steel ring, an air adjustingcheck valve, an O-shaped sealing ring, an outer cylinder, a piston, a check ring, a lining, a clamping ring and a caliper sleeve; the air inlet connector is provided with a center air hole and a sideair hole, one end of the air inlet connector is connected with an outer drill rod, and the middle of the air inlet connector is connected with the outer cylinder, an outer cylinder air hole is formedin the outer cylinder, the side air hole of the air inlet connector is in communication with a piston air groove through the outer cylinder air hole, the side air hole of the air inlet connector is incommunication with the outer cylinder air hole through the air adjusting check valve, and the air adjusting check valve is an elastic piece and has certain holding force. The impactor is simple in structure, the air inflow of the impactor can be automatically adjusted according to the requirements of different stratums, bore diameters and hole depths, and therefore energy consumption is reduced,and the effects of energy conservation and emission reduction are achieved.

Description

Technical field [0001] The invention relates to a large-aperture impactor with adjustable air intake. Background technique [0002] The large-diameter down-the-hole drilling tool system is a high-efficiency and high-quality hole-forming technology commonly used in pile foundation engineering at present, but the conventional large-diameter down-the-hole drilling tool system is used in pile foundation construction to adapt to different formations and different holes as much as possible. The depth and hole diameter meet the requirements of slag discharge. The current measure is to design a large-diameter down-the-hole drilling tool system with large air consumption, that is, to increase the air intake hole of the entire structure, so that the entire drilling tool system consumes a lot of air and fuel. Large, resulting in waste of energy. [0003] At present, the existing large-aperture impactor has many and complicated structural parts, which makes the large-aperture down-the-hole dr...

AI Technical Summary

Problems solved by technology

[0002] Drilling with large-diameter down-the-hole drilling system is an efficient and high-quality hole-forming technology commonly used in pile foundation engineering. However, in order to adapt to different strata and holes in pile foundation construction, conventional The depth and hole diameter meet the requirements of slag removal. The current measure is to design a large-aperture down-the-hole drilling system with large air consumption, that is, to increase the air intake hole of the entire structure, so that the entire drilling system consumes a lot of air and consumes oil. Large, causing energy waste

[0003] At present, the existing large-aperture impactor has many and complicated structural parts, which makes the impactor parts easily damaged during the construction of the large-aperture down-the-hole drilling system, resulting in the jamming of internal moving parts of the impactor, resulting in abnormal drilling system stop working

Images