Reamer with anti-drag reaming type belt

Abstract

The invention relates to a reamer with an anti-drag reaming type belt. The reamer comprises a belt body of an annular structure, the center of the belt body is fixedly connected with a drill rod by the aid of cross bars, multiple reaming rods are fixedly connected between the belt body and the drill rod and symmetrically arranged relative to the center of the drill rod, each of the drill rod, the reaming rods and the cross bars is of a hollow structure, multiple welding grooves are formed in the inner wall of the belt body symmetrically, the upper end of each reaming rod is welded in the corresponding welding groove, and the section of each reaming rod is of a square structure; multiple reaming strips are arranged on the outer wall of the belt body, an alloy block group is arranged between every two adjacent reaming strips, and each alloy block group comprises multipole alloy blocks arranged along the reaming strips; alloy blocks are evenly distributed on the outer walls of the cross bars and 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 the reaming function, the reaming efficiency is low. Contents of the invention [0003] The applicant researched and improved the above-mentioned shortcomings in the prior art, and provided a reamer with a drag-reducing reaming belt, which has the char...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the reamer has the following disadvantages: the reaming rod of the reamer is a cylindrical structure, which has less friction with the soil and gravel, and the cutting force on the soil and gravel is insufficient, and there are larger pieces of soil The 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. No reaming function, low reaming efficiency

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