Reamer for geological exploration

Abstract

The invention relates to a geological exploration reamer. The geological exploration reamer comprises a waistband and a drill rod, wherein the drill rod is supported and fixedly connected to the center of the waistband through cross rods; a plurality of reaming rods are fixedly connected between the inner wall of the waistband and the outer wall of the drill rod; a plurality of alloy blocks are uniformly distributed on the lower end face of the waistband and the outer walls of the reaming rods respectively; the reaming rods are symmetrically arranged relative to the center of the drill rod; the drill rod and the reaming rods are hollow, and are communicated with each other; a plurality of cross rods are arranged to form a vertical double-layer structure, and each layer is symmetrically arranged relative to the central axis of the drill rod; each reaming rod comprises a support plate having an L-shaped end face, and oblique plates arranged on the inner sides of two straight plates of the support plate; the oblique plates of each reaming rod and the two straight plates of the corresponding support plate are enclosed into a triangular hollow flow channel; the hollow flow channels are communicated with the drill rod; the oblique plates are provided with a plurality of water outlet holes which are communicated with the hollow flow channels; the alloy blocks are uniformly distributed on the end face of one straight plate of each support plate. The geological exploration reamer has a good reaming effect, and the connecting stability between the reaming rods and the drill rod as well as the waistband is high.

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 existing technology, such as figure 1 , figure 2 The shown reamer for geological exploration comprises a belt 1 and a drill pipe 2. The drill pipe 2 is a hollow structure, which is supported and fixed at the center of the belt 1 by means of a cross bar 3. There is also a gap between the inner wall of the belt 1 and the outer wall of the drill pipe 2. The reaming rod 4 arranged obliquely is fixed symmetrically, and the reaming rod 4 is also a hollow structure. The outer wall of the reaming rod 4 and the lower end surface of the belt 1 are evenly distributed with alloy blocks 5, and the reaming rod 4 communicates with the drill rod 2. When the reamer rotates and reams at high speed, the upper end of the drill pipe 2 is injected with clean water, and the clean water flows out from the lower end of the drill pipe 2...

AI Technical Summary

Problems solved by technology

This reamer for geological exploration has the following disadvantages: the reaming rod 4 is a cylindrical structure, and its friction with the soil gravel is small, and the chopping force to the soil gravel is insufficient, and the friction of the alloy block 5 alone is not enough Chop up all the soil, that is, there are large pieces of soil and gravel that are easy to get stuck between the belt and the cross bar, causing damage to the reamer and other components, resulting in low feeding efficiency; the end of the reaming rod 4 with a cylindrical structure The connection area between the outer wall of the drill pipe 2 and the inner wall of the belt 1 is small, and can only be fixed by welding the outer surface, that is, the solder is exposed on the outside. When rotating at high speed, the solder rubs against the soil and gravel, and its wear The effect is poor, and the welding area is small, so the reaming rod is easy to fall off, so it needs to be repaired in time, which reduces the engineering efficiency

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