CN201963205U

CN201963205U - Electric downhole impact drill bit

Info

Publication number: CN201963205U
Application number: CN2011200887996U
Authority: CN
Inventors: 侯亚林
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-31
Filing date: 2011-03-31
Publication date: 2011-09-07
Anticipated expiration: 2021-03-31

Abstract

The utility model provides an electric downhole impact drill bit, which relates to an impact drill bit and aims at solving the problems of high cost and low work efficiency of the existing downhole impact drill bit. A guide sleeve of the electric downhole impact drill bit is vertically arranged in the center part of the upper end surface of the tail part of the drill bit, in addition, the guide sleeve and the drill bit are made into a whole, the center part of the upper end surface of the tail part of the drill bit is provided with a core pipe hole with the same diameter as an inner hole of the guide sleeve, a core pipe is arranged in a direction vertical to the lower end surface of a core pipe seat, in addition, the core pipe seat and the core pipe are made into a whole, the core pipe seat and the core pipe are provided with through holes along the axial line, the lower end of the core pipe is arranged in the core pipe hole, a buffer spring is positioned between the guide sleeve and the core pipe seat, in addition, the buffer spring is sheathed on the core pipe, a plurality of electric vibrators are uniformly distributed and arranged on the upper end surface of the tail part of the drill bit, and in addition, each electric vibrator is connected with the drill bit through a connecting element. The electric downhole impact drill bit is used on a well drilling machine.

Description

Electronic down-hole percussion drill head

Technical field

The utility model relates to a kind of down-hole percussion drill head.

Background technology

Existing drill hammer has two kinds, and a kind of is to surge or pneumatic hole impinger combines with drill bit and realizes percussive drilling, this drill hammer cost of production height; Another kind is to lift up and down with wire rope to realize drill bit percussive drilling up and down, and this drill hammer operating efficiency is low excessively.

The utility model content

The purpose of this utility model is for solving existing down-hole percussion drill head cost height, ineffective problem, a kind of electronic down-hole percussion drill head being provided.

The utility model comprises drill bit, fairlead, the core pipe, the core base, buffer spring and several electronic electromagnetic shakers, fairlead is vertically set on the center of drill bit afterbody upper surface, and fairlead and drill bit are made one, the center of drill bit afterbody upper surface is provided with the core pore identical with the fairlead diameter of bore, the core pipe is provided with perpendicular to the lower surface of core base, and core base and core pipe 3 are made one, core base and core pipe are provided with through hole along axis, the lower end of core pipe is arranged in the core pore, buffer spring is between fairlead and core base, and buffer spring is sleeved on the core pipe, several electronic electromagnetic shakers are uniform to be arranged on the upper surface of drill bit afterbody, and each electronic electromagnetic shaker is connected with drill bit by Connection Element.

The utility model has the advantages that: one, the utility model is combined into one electronic electromagnetic shaker and common drill bit, makes the dilatory down upper and lower high-frequency vibration of drill bit at electronic electromagnetic shaker, thereby forms drill hammer; The utility model has solved existing drill hammer cost height, inefficient problem.Two, because drill bit adopts the common drill bit on the positive and negative circulation drilling machine, this just makes uses the function that rig of the present utility model promptly has common positive and negative circulation drilling machine, and the function of percussive drill is arranged again, has realized a tractor serves several purposes, has reduced cost, has improved efficient.

Description of drawings

Fig. 1 is overall structure master's sectional view of the present utility model (Reference numeral 7 is drilling rod, and Reference numeral 8 is the input power cord of electronic electromagnetic shaker 6).

The specific embodiment

The specific embodiment one: present embodiment is described in conjunction with Fig. 1, present embodiment comprises drill bit 1, fairlead 2, core pipe 3, core base 4, buffer spring 5 and several electronic electromagnetic shakers 6, fairlead 2 is vertically set on the center of drill bit 1 afterbody upper surface, and fairlead 2 is made one with drill bit 1, the center of drill bit 1 afterbody upper surface is provided with the core pore 1-1 identical with fairlead 2 diameter of bores, core pipe 3 is provided with perpendicular to the lower surface of core base 4, and core base 4 is made one with core pipe 3, core base 4 and core pipe 3 are provided with through hole 4-1 along axis, the internal diameter of through hole 4-1 is identical with the external diameter of drilling rod 7, the lower end of core pipe 3 is arranged in the core pore 1-1, buffer spring 5 is between fairlead 2 and core base 4, and buffer spring 5 is sleeved on the core pipe 3, several electronic electromagnetic shakers 6 are uniform to be arranged on the upper surface of drill bit 1 afterbody, and each electronic electromagnetic shaker 6 is connected with drill bit 1 by Connection Element.Buffer spring 5 is in order to the impact force between buffering drill bit 1 and the core pipe 3.Drill bit 1 adopts the drill bit of common direct and reverse circulation drilling machine.

The specific embodiment two: in conjunction with Fig. 1 present embodiment is described, the center line of the drill bit 1 of present embodiment and the center line of described core pipe 3 are on same axis.Other composition is identical with the specific embodiment one with annexation.

The course of work of the present utility model: during use, drilling rod 7 is inserted the endoporus of core pipe 3; During work, start electronic electromagnetic shaker 6, electronic electromagnetic shaker 6 drives drill bit 1 upper and lower high-frequency percussion, makes common direct and reverse circulation drilling machine realize high-frequency vibration boring.

Claims

1. electronic down-hole percussion drill head, described electronic down-hole percussion drill head comprises drill bit (1), fairlead (2), fairlead (2) is vertically set on the center of drill bit (1) afterbody upper surface, and fairlead (2) is made one with drill bit (1), the center of drill bit (1) afterbody upper surface is provided with the core pore (1-1) identical with fairlead (2) diameter of bore, it is characterized in that: described electronic down-hole percussion drill head also comprises core pipe (3), core base (4), buffer spring (5) and several electronic electromagnetic shakers (6), core pipe (3) is provided with perpendicular to the lower surface of core base (4), and core base (4) is made one with core pipe (3), core base (4) and core pipe (3) are provided with through hole (4-1) along axis, the lower end of core pipe (3) is arranged in the core pore (1-1), and the center line of the center line of drill bit (1) and core pipe (3) is on same axis, buffer spring (5) is positioned between fairlead (2) and the core base (4), and buffer spring (5) is sleeved on the core pipe (3), several electronic electromagnetic shakers (6) are uniform to be arranged on the upper surface of drill bit (1) afterbody, and each electronic electromagnetic shaker (6) is connected with drill bit (1) by Connection Element.

2. according to the described electronic down-hole percussion drill head of claim 1, it is characterized in that: the center line of the center line of described drill bit (1) and described core pipe (3) is on same axis.