Propeller with drill rod bending mechanism

Abstract

The invention relates to a propeller with a drill rod bending mechanism. The propeller comprises a propeller main body; the drill rod bending mechanism is arranged on the propeller main body; a drillrod placed on the propeller main body bends the head of the drill rod through the drill rod bending mechanism; and the drill rod bending mechanism is of an integral type or a split type and is locatedat the push-out end of the propeller main body. The propeller with the drill rod bending mechanism has the beneficial effects that the drill rod bending mechanism is arranged on the propeller, so that the structure is more compact, the construction process is more convenient, and the construction efficiency and the precision are greatly improved; and the head of the drill rod can be accurately bent according to the required angle, the situation that the head of the drill rod is tightly attached to the tunnel wall to drill a tunnel face is realized, and the tunnel excavation over-excavation and under-excavation problem is accurately controlled.

Description

technical field [0001] The invention belongs to the technical field of rock drilling equipment, in particular to a propeller with a drill rod bending mechanism. Background technique [0002] Traditional tunnel excavation requires smooth blasting, and the head of the drill rod is required to be close to the tunnel wall to drill holes to the tunnel face. Due to the shape of the rock drill, the center distance of the rock drill is mostly more than 80mm, so the traditional thruster cannot push the drill The head of the rod is drilled close to the tunnel wall. The traditional construction method is to rely on the experience of the operator to bend the drill rod against the tunnel wall by external force, and then drill the hole to the tunnel face. It is impossible to realize the bending of the head of the drill rod through the propeller, and the operating efficiency is low and the safety performance is poor through the manipulation of the experience of the operator. Contents of ...

AI Technical Summary

Problems solved by technology

[0002] Traditional tunnel excavation requires smooth blasting, and the head of the drill rod is required to be close to the tunnel wall to drill holes to the tunnel face. Due to the shape of the rock drill, the center distance of the rock drill is mostly more than 80mm, so the traditional thruster cannot push the drill The head of the rod is drilled close to the tunnel wall. The traditional construction method is to rely on the experience of the operator to bend the drill rod against the tunnel wall by external force, and then drill the hole to the tunnel face.

In this way, it is impossible to realize the bending of the head of the chisel rod through the propeller, and the operation efficiency is low and the safety performance is poor through the manipulation of the operator's experience.

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