Impactor with quick-change structure

Abstract

The invention discloses an impactor with a quick-change structure. The impactor comprises a drill bit and a clamping fiber sleeve, wherein the end of the drill bit is sleeved with the end of the clamping fiber sleeve; a guide groove, a guide key and a locking part are arranged between the attaching faces of the drill bit and the clamping fiber sleeve; the guide groove and the guide key extend in the axial direction; and the locking part is used for achieving axial positioning. According to the impactor with the quick-change structure, the guide groove, the guide key and the locking part are used for replacing clamping ring connection in the prior art, when the impactor is disassembled, the locking part is unlocked, the drill bit and the clamping fiber sleeve are pulled in the extending direction of the guide groove and the guide key, namely the axial direction of the drill bit, the drill bit and the clamping fiber sleeve are separated in the axial direction, and disassembly is achieved. In the process, the step that a clamping ring is taken down by disassembling an outer cylinder and the clamping fiber sleeve in the prior art does not exist, and therefore the outer cylinder and theclamping fiber sleeve are prevented from being disassembled, and the problem that the drill bit is difficult to disassemble due to the fact that threads of the outer cylinder and the clamping fiber sleeve are too locked is solved.

Description

technical field [0001] The invention relates to the field of drilling engineering, in particular to a hammer with a quick-change structure. Background technique [0002] In recent years, as my country has continuously increased investment in infrastructure and various mines, the pneumatic down-the-hole hammer has simple structure, convenient operation, easy maintenance, effective removal of bottom cuttings, and is not affected by the drilling depth. Limitation, can reduce drilling tool wear and other advantages, has received great attention in the field of rock crushing machinery technology. With the rapid development of pneumatic down-the-hole hammer drilling technology, its application fields have been continuously expanded, from the initial blast hole construction, to hydrological water well drilling, geological core exploration, reservoir dam foundation curtain grouting, engineering geological exploration, Excavation pipeline laying, building foundation and geotechnical ...

AI Technical Summary

Problems solved by technology

This disassembly method is cumbersome and time-consuming, and secondly, after the card fiber sleeve is heated, its material structure and performance will change.

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