CN201301667Y

CN201301667Y - Drill bit with integration of shock, rotation and dry slag removal

Info

Publication number: CN201301667Y
Application number: CNU2008201559361U
Authority: CN
Inventors: 林坚; 陈胜全; 钱雨笙
Original assignee: Shanghai Jintai Engineering Machinery Co Ltd
Current assignee: Shanghai Jintai Engineering Machinery Co Ltd
Priority date: 2008-11-25
Filing date: 2008-11-25
Publication date: 2009-09-02
Anticipated expiration: 2018-11-25

Abstract

The utility model relates to underground construction machinery, in particular to a rotary drill bit. The drill bit with integration of shock, rotation and dry slag removal is driven by a telescopic drill rod and a swing type power head, the drill bit comprises a drill bit body, grinding teeth positioned at the lower end surface of the drill bit body and a slag and soil inlet which is formed in the radius direction, and the drill bit further comprises impact teeth arranged at the lower surface of the drill bit body. The drill bit can not only realize the impact effect by utilizing the telescopic drill rod, but also utilize the swing type power head for grinding; meanwhile, the drill bit can utilize a hole-bottom down-hole hammer, a vibratory hammer and a hydraulic hammer for impacting, rotating and drilling broken rocks, the drill bit body is loaded, slag and soil discharged from a rotary drilling bucket are collected, thereby avoiding the problems caused by a circulation pipeline and effectively dealing with the complicated underground conditions.

Description

A kind of impact, revolution and dried slag removing are bit Integrated

Technical field

The utility model relates to underground construction machinery, specifically, relates to a kind of drill bit of rotation.

Background technology

Rotary drilling technology has been common a kind of underground construction mode.This technology is applicable to that hard increases progressively, what it adopted is to revolve to dig drill bit, the rotary grinding hard layer not the breaking of rod advance, thereby the dregs that grinding is got off packed into discharge in the bit body, but subsurface picture is very complicated, sometimes can run into hard lithosphere, in this case, rotary drilling seems that efficient is very low, therefore the applicant once provided a kind of multi-functional percussive drill, it is to utilize telescopic drill rod, swing type unit head and power hammer go to impact, the grinding lithosphere, and utilize circulating line that dregs is discharged, thus realize fast mining to the hard bottom.Yet, because adopting power hammer to add circulating line, this rig comes deslagging, the pipeline relative complex causes the structure relative complex.

Summary of the invention

The utility model is intended to solve the described defective of prior art, provides a kind of impact, revolution and dried slag removing bit Integrated.Drill bit of the present utility model, both can utilize telescopic drill rod to realize percussion, can utilize the grinding of swing type unit head again, can utilize simultaneously down-the-hole hammer at the bottom of the hole, vibration hammer, hydraulic hammer impact rotating to creep into fractured rock, bit body loads, collect to revolve and discharge dregs in the bucket, the problem of having avoided circulating line to cause is effectively dealt with complicated underground condition.

The utility model is achieved in that

A kind of impact, revolution and dried slag removing are bit Integrated, and it is driven by telescopic drill rod and swing type unit head, and it comprises drill body, is positioned at the grinding tooth of drill body lower surface and the dregs import that is provided with along radial direction; It also comprises the impact teeth that is positioned at the drill body soffit.

Described a kind of impact, revolution and dried slag removing are bit Integrated, and described impact teeth has 2 to 16, and they are distributed on the drill body soffit.

The utility model rolls into one impact, revolution grinding and deslagging function, increase impact teeth at original rotary bit end face, during work, utilize impact force that hard layer is smashed, utilize the grinding tooth to carry out grinding, in turning course, dregs is absorbed in the bit body, realize dried slag removing, impact, two kinds of effects of grinding collaborative work are increased work efficiency greatly, and need not any circulating line, simplified apparatus.

Description of drawings

Below, in conjunction with the accompanying drawings, further specify the utility model:

Fig. 1 is the utility model elevation;

Fig. 2 is the upward view of Fig. 1.

The specific embodiment

As depicted in figs. 1 and 2: a kind of impact, revolution and dried slag removing are bit Integrated, it drives (failing among the figure to illustrate) by telescopic drill rod and swing type unit head, and it comprises drill body 1, is positioned at the grinding tooth 2 of drill body 1 lower surface and the dregs import 4 that is provided with along radial direction; It also comprises the impact teeth 3 that is positioned at drill body 1 soffit.Described impact teeth 3 has 2 to 16, and they are distributed on drill body 1 soffit.

Claims

1. an impact, revolution and dried slag removing are bit Integrated, and it is driven by telescopic drill rod and swing type unit head, and it comprises drill body, is positioned at the grinding tooth of drill body lower surface and the dregs import that is provided with along radial direction; It is characterized in that it also comprises the impact teeth that is positioned at the drill body soffit.

2. a kind of impact according to claim 1, revolution and dried slag removing are bit Integrated, it is characterized in that, described impact teeth has a plurality of, and they are distributed on the drill body soffit.