Novel reamer

Abstract

The invention relates to a novel reamer. The novel reamer comprises a waistband body, the center of the waistband body is fixedly connected with a drill rod by the aid of a crossbar, a plurality of reaming rods are fixedly connected between the waistband body and the drill rod and are symmetrically arranged relative to the center of the drill rod, the drill rod, the reaming rods and the crossbar are of hollow structures, and the waistband body comprises two waistband rings arranged at intervals from top to bottom. A plurality of support plates are connected between the inner side walls of the lower ends of the support plates are provided with welding grooves, the upper ends of the reaming rods are fixedly welded in the welding grooves, and the sections of the reaming rods are of square structures. A plurality of reamed hole drums symmetrically arranged relative to the center of the waistband body are rotationally connected between the upper and lower waistband rings, alloy blocks are uniformly distributed on the outer walls of the reamed hole drums as well as the outer walls of the reaming rods.

Description

technical field [0001] The invention relates to the field of geological exploration equipment, in particular to a hole reamer. Background technique [0002] In the prior art, the reamer has the following disadvantages: the reaming rod of the reamer has a cylindrical structure, and its friction with the soil gravel is small, and the cutting force for the soil gravel is insufficient, and there are large pieces of soil Gravel is easily stuck between the belt and the cross bar, causing damage to the reamer and other components, resulting in low feeding efficiency; the welding area between the reaming rod and the inner wall of the belt is small, and the welding strength is not high; the belt only plays a supporting role. Without reaming function, the reaming efficiency is low; the reaming resistance of the reamer is large, and the edge of the hole is rough, which is not conducive to the later drilling operation. Contents of the invention [0003] Aiming at the shortcomings of ...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the reamer has the following disadvantages: the reaming rod of the reamer has a cylindrical structure, and its friction with the soil gravel is small, and the cutting force for the soil gravel is insufficient, and there are large pieces of soil Gravel is easily stuck between the belt and the cross bar, causing damage to the reamer and other components, resulting in low feeding efficiency; the welding area between the reaming rod and the inner wall of the belt is small, and the welding strength is not high; the belt only plays a supporting role. Without reaming function, the efficiency of reaming is low; the reaming resistance of the reamer is large, and the edge of the hole is rough, which is not conducive to the later drilling operation

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