Special reamer for rock

Abstract

A special reamer for rock comprises a reaming head, a first-stage reamer body, a connector, a second-stage reamer body, a top plate, a connection lead screw, a nut and a drill stem; the first-stage reamer body is arranged at the top end of the reaming head, and a reaming head convex block is embedded into a first-stage reamer body bottom groove to achieve limiting of the first-stage reamer body and the reaming head; the connector and the second-stage reamer body are arranged at the top end of the first-stage reamer body; a connection bottom block is embedded into a first-stage reamer body topconnection groove, and a connection top block stretches into a second-stage reamer body cavity; a connector convex block is embedded into a second-stage reamer body bottom groove, and a second-stage reamer body connection block is embedded into a first-stage reamer body connection groove, so that limiting of the second-stage reamer body and the first-stage reamer body is achieved; the top plate isembedded into a second-stage reamer body connection groove; the bottom end of the connection lead screw stretches into the device; the top end of the connection lead screw is fixed to the top plate due to threaded connection of the nut; and the drill stem is fixed to the connector and the reaming head in a threaded manner. The special reamer for the rock can be subjected to structural adjustmentaccording to the reaming size, and is flexible to use and high in 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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