CN202249787U

CN202249787U - Geological exploration sharp-tooth mudstone coring drill bit

Info

Publication number: CN202249787U
Application number: CN2011203325789U
Authority: CN
Inventors: 李强
Original assignee: FUXINSHI JINGLI CHAOYING GONGJU Ltd
Current assignee: FUXINSHI JINGLI CHAOYING GONGJU Ltd
Priority date: 2011-09-07
Filing date: 2011-09-07
Publication date: 2012-05-30
Anticipated expiration: 2021-09-07

Abstract

The utility model discloses a geological exploration sharp-tooth mudstone coring drill bit which comprises a drill bit body (1), scrap cutting bodies (2) and a diamond composite sheet (3), wherein an inner circle and an outer circle of the scrap cutting bodies (2) are installed on the drill bit body (1) with the center of a circle of the drill bit body (1) as an axis in an uniform distribution manner; the inner circle of the scrap cutting bodies (21) are higher than the outer circle of the scrap cutting bodies (22), and the inner circle of the scrap cutting bodies (21) and the outer circle of the scrap cutting bodies (22) are not in the same vertical surface; and the diamond composite sheet (3) is installed on the scrap cutting bodies (2) and is of a polygon shape, and peaks obtained through the crossing of any two sides of the diamond composite sheet are the peaks of the scrap cutting bodies (2), thus a sharp-tooth diamond composite sheet (3) is formed. According to the utility model, the occlusion degree of mudstone is increased by the drill bit; the effective drilling of the mudstone is realized through sharp teeth which are distributed and staggered up and down, and back and forth; and no slipping and rapid drilling footage are ensured, and the efficacy is improved by 8-10 times.

Description

A kind of geological prospecting pointed tooth mud stone coring bit

Technical field

The utility model relates to a kind of boring tool, is specifically related to a kind of geological prospecting pointed tooth mud stone coring bit.

Background technology

Geological prospecting and engineering exploration field for obtaining the significant data of rock stratum, need to use coring bit to drill through the acquisition core and are used for measuring; Present national geological prospecting and engineering exploration use diamond compact bit to creep into usually; Diamond compact belongs to nearly ten years superhard materials of promoting the use of, and its top layer is a diamond layer, and bottom is a carbide alloy; Form in the HTHP pressed; Diamond compact is welded on the drill bit body, and as the cutting wing, significantly having improved is the drilling depth efficient of the cutting wing originally with the carbide alloy;

Because the smear metal diamond compact is circle on the diamond compact bit that uses, the section of diamond compact is arranged and is belonged to flat raft cloth up and down, and therefore when running into mud stone, use can occur skidding, not wear and tear and the phenomenon of drilling depth not, can't solve.

The utility model content

For addressing the above problem, the utility model provides a kind of geological prospecting pointed tooth mud stone coring bit, effectively solves to occur skidding, do not wear and tear when present diamond compact bit mud stone creeps into and the problem of drilling depth not.

For achieving the above object, the technological means that the utility model adopts is a kind of geological prospecting pointed tooth mud stone coring bit; Comprise drill body, smear metal body, diamond compact, said smear metal body is installed on the drill body, is axle with the drill body center of circle; Inside and outside two circles are set on drill body; The smear metal body evenly distributes on inside and outside two circles, and inner ring smear metal height is the smear metal body in the outer ring, and inner ring smear metal body and outer ring smear metal body be not on same vertical plane; Said diamond compact is installed on the smear metal body, and its shape is set to polygon, so that wherein arbitrarily to be handed over the summit that obtains be smear metal body summit on both sides, and formation pointed tooth diamond compact.

The beneficial effect of the utility model is: the pointed tooth diamond compact, strengthen the degree of engagement to mud stone; Cutting body is changed into by original plain cloth up and down and is staggered front to back distribution up and down, makes the drill bit top form a plurality of pointed tooths of front and back up and down, realizes effectively creeping into of mud stone; That the improvement of above drill bit structure has guaranteed is non-slip, drilling depth is fast, and effect is brought up to original 8～10 times.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

The front view of Fig. 1 the utility model,

The vertical view of Fig. 2 the utility model.

The specific embodiment

Like Fig. 1, a kind of geological prospecting pointed tooth mud stone coring bit shown in 2; Comprise drill body 1, smear metal body 2, diamond compact 3, said smear metal body 2 is installed on the drill body 1, is axle with drill body 1 center of circle; Inside and outside two circles are set on drill body 1; Smear metal body 2 evenly distributes on inside and outside two circles, and inner ring smear metal body 21 is higher than outer ring smear metal body 22, and inner ring smear metal body 21 and outer ring smear metal body 22 be not on same vertical plane; Preferred 4 groups of cutting bodies 2 in this example, like this on drill body 1 to be staggered front to back mode 8 cutting bodies 2 that distributed up and down; Said diamond compact 3 is installed on the smear metal body 2; Its shape is set to polygon, and it is triangle that this routine preferable shape is provided with top, and the bottom is semicircle; Being handed over the summit that obtains with any both sides of triangle is smear metal body 2 summits, forms pointed tooth diamond compact 3; Pointed tooth diamond compact 3 has strengthened the degree of engagement to mud stone; Cutting body 2 is changed into by original plain cloth up and down and is staggered front to back distribution up and down, makes the drill bit top form a plurality of pointed tooths of front and back up and down, realizes effectively creeping into of mud stone; That the improvement of above drill bit structure has guaranteed is non-slip, drilling depth is fast, and effect is brought up to original 8～10 times.

Claims

1. geological prospecting pointed tooth mud stone coring bit; Comprise drill body (1), smear metal body (2), diamond compact (3), said smear metal body (2) is installed on the drill body (1), is axle with drill body (1) center of circle; Inside and outside two circles are set on drill body (1); Smear metal body (2) evenly distributes on inside and outside two circles, and it is characterized in that: said inner ring smear metal body (21) is higher than outer ring smear metal body (22), and inner ring smear metal body (21) and outer ring smear metal body (22) be not on same vertical plane; Said diamond compact (3) is installed on the smear metal body (2), and its shape is set to polygon, so that wherein arbitrarily to be handed over the summit that obtains be smear metal body (2) summit on both sides, and formation pointed tooth diamond compact (3).

2. geological prospecting pointed tooth mud stone coring bit according to claim 1 is characterized in that: said cutting body (2) comprises 4 groups 8 altogether, is distributed on the drill body (1) to be staggered front to back mode up and down.

3. geological prospecting pointed tooth mud stone coring bit according to claim 1 is characterized in that: said diamond compact (3) shape is set to the top triangle, and the bottom is semicircle.