A rock-specific hole reamer

Abstract

A special reamer for rocks, including a reamer, a primary reamer, a connector, a secondary reamer, a top plate, a connecting screw, a nut, and a drill rod; the primary reamer is arranged at the top of the reamer , the reaming head bump is embedded in the bottom groove of the primary reamer to realize the limit between the primary reamer and the reaming head; the connector and the secondary reamer are set on the top of the primary reamer, and the connecting bottom block is embedded In the top connection groove of the first-stage reamer, the connecting top block extends into the cavity of the second-stage reamer, the connector protrusion is embedded in the bottom groove of the second-stage reamer, and the connecting block of the second-stage reamer is embedded in the first-stage reamer In the connection groove of the secondary reamer, the limit between the secondary reamer and the primary reamer is realized; the top plate is embedded in the connection groove of the secondary reamer, the bottom end of the connecting screw extends into the device, and the top of the connecting screw passes through the nut thread The connection is fixed with the top plate; the drill pipe is respectively threaded with the connector and the reaming head. The invention can adjust the structure according to the size of the expanded hole, and has flexible use and high structural strength.

Description

technical field [0001] The invention relates to the field of drilling tools, in particular to a special hole reamer for rocks. Background technique [0002] The existing rock drilling bits that have been put into use have various structures and are usually used in many important fields such as geological exploration, tunnel excavation, and mining. The technical level of the drilling device is high, the volume structure is relatively large, and the structure is relatively complicated. ; but for construction and installation industries, it is usually necessary to open holes for stones that have been installed or are about to be installed. When carrying out small-scale construction, it is necessary to meet the construction requirements of stone positioning, pipe threading, and threading. Here In the process of drilling the stone, a professional hole saw or a rock-specific drilling bit is required, and the drilling device is required to be simple in structure and easy to carry. ...

AI Technical Summary

Problems solved by technology

However, after using the hole opening device for the hole opening operation, the hole size cannot be changed. When it is necessary to obtain a hole with a larger opening size, it is difficult for the general hole opener to perform secondary hole opening, and a hole reamer is required for reaming. , the structure of the existing reamer is complicated, and different reaming bits need to be smoother according to different reaming sizes. The use process is greatly restricted, and it is impossible to adjust its own structure according to the actual reaming size to meet different reaming requirements.

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