CN206091882U - Formula down --hole hammer drill tied in a bundle advances to use polycrystalline diamond down --hole drill bit - Google Patents
Formula down --hole hammer drill tied in a bundle advances to use polycrystalline diamond down --hole drill bit Download PDFInfo
- Publication number
- CN206091882U CN206091882U CN201621067881.XU CN201621067881U CN206091882U CN 206091882 U CN206091882 U CN 206091882U CN 201621067881 U CN201621067881 U CN 201621067881U CN 206091882 U CN206091882 U CN 206091882U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- polycrystalline diamond
- steel body
- cluster type
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a formula down - -hole hammer drill tied in a bundle advances to use polycrystalline diamond down - -hole drill bit, including the steel body and a plurality of post tooth head, post tooth head set up on steel body terminal surface, post tooth head include edge teeth and densmedius, have one in a plurality of edge teeth or the densmedius at least for polycrystalline diamond compact. The utility model overcomes current carbide down -the -hole drill bit not enough in the aspect of wearability and rock penetration performance, it with high rigidity, high wearing feature and well shock resistance's polycrystalline diamond compact replaced traditional carbide post tooth to can decide the part or whole to replace according to the formation condition of difference, concrete quantity varies drill bit rock penetration performance height, long service life from 1~100.
Description
Technical field
This utility model is related to a kind of drill bit, and in particular to be applied to large-diameter pile foundation engineering, mine rescue hole, gas
A kind of cluster type DTH drilling polycrystalline diamond down-the-hold drill bit of drainage holes, work shaft.
Background technology
As architecture science develops, the requirement of skyscraper, highway bridge, port and pier building to foundation construction is increasingly
Height, simple friction pile cannot often meet Pile Bearing Capacity requirement, need using pile foundation be embedded in rock stratum formed end hold
Stake or friction end-bearing pile.Embedded rock pile is always the difficult problem that engineering method is crept in rotary digging, and conventional drilling method is using pick cylinder
Bore or cutter barrel bore to embrace coring, consumption of this method to cutting tool be it is huge, often per make a call to a pile will
Once or for several times pick, gear wheel are changed, drilling cost is high and progress is slow.How rotary drilling rig embedded rock pile drilling construction effect is improved
Rate is a difficult problem, and the appearance of cluster type down-hole hammer solves well this difficult problem, and rotary drilling rig need not be transformed, it is only necessary to be matched somebody with somebody
Cover simple joint to be connected and can be crept into cluster type down-hole hammer and several air compressor machines.At the same time, with mine underground
The continuous deep people of exploitation, ventilation, feeding, gas pumping hole quantities are consequently increased, particularly mine flooding in recent years, gas
Explosion accident happens occasionally, and rescue hole is necessary for each underground mining engineering, and mine drilling engineering not only needs drop
Low cost, while must assure that quick, accurate, safety drilling construction.Onboard power head rig coordinates cluster type down-hole hammer undoubtedly
It is most efficient method.
The down-the-hold drill bit of tungsten carbide button's post tooth has been widely used for cluster type DTH drilling, and in drillman
Huge effect has been played in journey, but when in the face of extremely hard formation, hard alloy columnar teeth wears no resistance, and drilling life of bit is short,
Construction period is extended, Drilling cost is improve, and returns the hard alloy resource of our countries and be contained within the war such as tungsten and cobalt
Slightly resource causes very big waste.Therefore, it is necessary to develop a kind of longer cluster type DTH drilling of more resistant, life-span use
Down-the-hold drill bit.
Utility model content
In order to overcome the shortcomings of existing hard alloy down-the-hold drill bit in terms of wearability and rock penetration performance, this utility model is carried
A kind of polycrystalline diamond down-the-hold drill bit is supplied.It is answered with the polycrystalline diamond of high rigidity, high-wearing feature and excellent impact resistance energy
Close piece and instead of traditional hard alloy columnar teeth, and can be according to different formation conditions, all deciding section or replacement, tool
, from 1～100, drill bit rock penetration performance is high, long service life for body quantity.
The technical solution adopted in the utility model is：A kind of cluster type DTH drilling polycrystalline diamond down-the-hold drill bit,
Including steel body and multiple post tooth heads, described post tooth head is arranged on steel body end face, and described post tooth head includes heel teeth and middle tooth,
At least one is composite polycrystal-diamond in multiple heel teeths or middle tooth.
Further, described composite polycrystal-diamond tooth head shapes are hemispherical, conisphere shape, half elastic claw shape or double cambered surfaces
Shape.
Further, the quantity of described composite polycrystal-diamond is 1～100.
Further, a diameter of 1～Φ of Φ 30mm of described composite polycrystal-diamond.
Further, the axis of described steel body is provided with center venthole, and outlet bore dia is between Φ 20～Φ 600mm.
Further, the steel body end pattern of described setting post tooth is concave.
Further, the steel body end face of described setting post tooth is provided with 0～30 ash pit.
The beneficial effects of the utility model are：
1st, this utility model preparation process is easy to operate, and processing technique is simple, and post tooth head has used polycrystalline diamond to be combined
Piece, composite polycrystal-diamond is with the impact resistance suitable with hard alloy and is several times as much as the wearability of hard alloy, its
Service life is the several times of hard alloy down-the-hold drill bit, and rock penetration performance is greatly enhanced, and has very big advantage in rock drilling,
Particularly in hard rock rock drilling field, service life is 10 times of conventional rigid alloy bit；Cutting rate also improves 1 times,
The high and low pneumatic down-the-hole bit of existing all size model can be adopted.
2nd, steel body is using 1 center venthole being relatively large in diameter and end face is designed the high pressure gas of big flow using concave
Ti You centers are blown to realize deslagging around bottom hole.Compare the two or more ventholes of conventional rigid alloy down-the-hold drill bit to gather around
There is more preferable deslagging ability, while avoiding the abrasion to bit face center portion.
3rd, can be according to the used composite polycrystal-diamond tooth head shapes of different geological conditions selections and diameter.
Description of the drawings
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is the structural representation of this utility model embodiment two；
Fig. 3 is the structural representation of composite polycrystal-diamond in this utility model.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.
Embodiment one：
As shown in figure 1, this utility model includes steel body 4 and post tooth head, post tooth head is embedded on the end face 1 of steel body 4.Institute
The post tooth head stated is divided into the heel teeth 3 in the middle tooth 2 on the inside of end face and outside, and above-mentioned middle tooth 2 and heel teeth 3 is polycrystalline diamond and answers
Close piece and tooth head 1 is shaped as hemispherical, quantity is 21.The end face 1 of steel body 4 is concave, and in the center of end face 1 one is provided with
The center venthole 5 of individual taper.Middle tooth 2 and heel teeth 3 are mounted in the perforation of steel body 4 by way of interference fit.
Embodiment two：
As shown in Fig. 2 this utility model includes steel body 4 and multiple post tooth heads, multiple post tooth heads are embedded in the end of steel body 4
On face 1.Described post tooth head is divided into the heel teeth 3 in the middle tooth 2 on the inside of end face and outside, and above-mentioned middle tooth 2 and heel teeth 3 is glomerocryst
Diamond compact and tooth head 1 are shaped as hemispherical, and quantity is 15.The end face 1 of steel body 4 is concave, at the center of end face 1
Place is provided with the center venthole 5 of a taper, and three ash pits 6 are provided with end face 1.Middle tooth 2 and heel teeth 3 pass through interference fit
Mode be mounted in the perforation of steel body 4.
This utility model has not only incorporated the high-wearing feature of composite polycrystal-diamond, but also has had conventional rigid conjunction concurrently
The impact resistance of golden down-the-hold drill bit, service life and rock penetration performance are latent far above traditional cluster type down-hole hammer hard alloy
Drill.
It is noted that the above embodiment is to the illustrative and not limiting of technical solutions of the utility model, it is affiliated
The equivalent of technical field those of ordinary skill or other modifications made according to prior art, as long as not exceeding this practicality
The thinking and scope of new technique scheme, should be included within the interest field required by this utility model.
Claims (7)
1. a kind of cluster type DTH drilling polycrystalline diamond down-the-hold drill bit, it is characterised in that：Including steel body and multiple post teeth
Head, described post tooth head is arranged on steel body end face, and described post tooth head includes heel teeth and middle tooth, in multiple heel teeths or middle tooth extremely
Rare one is composite polycrystal-diamond.
2. a kind of cluster type DTH drilling polycrystalline diamond down-the-hold drill bit according to claim 1, it is characterised in that：
Described composite polycrystal-diamond tooth head shapes are hemispherical, conisphere shape, half elastic claw shape or double arc surfaceds.
3. a kind of cluster type DTH drilling polycrystalline diamond down-the-hold drill bit according to claim 1, it is characterised in that：
The quantity of described composite polycrystal-diamond is 1～100.
4. a kind of cluster type DTH drilling polycrystalline diamond down-the-hold drill bit according to claim 1, it is characterised in that：
A diameter of 1～Φ of Φ 30mm of described composite polycrystal-diamond.
5. a kind of cluster type DTH drilling polycrystalline diamond down-the-hold drill bit according to claim 1, it is characterised in that：
The axis of described steel body is provided with center venthole, and outlet bore dia is between Φ 20～Φ 600mm.
6. a kind of cluster type DTH drilling polycrystalline diamond down-the-hold drill bit according to claim 1, it is characterised in that：
The steel body end pattern of described setting post tooth is concave.
7. a kind of cluster type DTH drilling polycrystalline diamond down-the-hold drill bit according to claim 1, it is characterised in that：
The steel body end face of described setting post tooth is provided with 0～30 ash pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067881.XU CN206091882U (en) | 2016-09-21 | 2016-09-21 | Formula down --hole hammer drill tied in a bundle advances to use polycrystalline diamond down --hole drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067881.XU CN206091882U (en) | 2016-09-21 | 2016-09-21 | Formula down --hole hammer drill tied in a bundle advances to use polycrystalline diamond down --hole drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206091882U true CN206091882U (en) | 2017-04-12 |
Family
ID=58480287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621067881.XU Active CN206091882U (en) | 2016-09-21 | 2016-09-21 | Formula down --hole hammer drill tied in a bundle advances to use polycrystalline diamond down --hole drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206091882U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222845A (en) * | 2018-04-09 | 2018-06-29 | 成都百施特金刚石钻头有限公司 | The cyclic annular cutting alloy tooth of drill and petroleum extraction tools |
| CN109882076A (en) * | 2019-04-10 | 2019-06-14 | 河南理工大学 | A kind of inserting column formula gas drainage drill bit |
| CN110080686A (en) * | 2019-05-14 | 2019-08-02 | 河南四方达超硬材料股份有限公司 | A kind of polycrystalline diamond down-the-hold drill bit |
| CN108222845B (en) * | 2018-04-09 | 2024-04-26 | 成都百施特金刚石钻头有限公司 | Annular cutting alloy tooth for drilling and production tool |
-
2016
- 2016-09-21 CN CN201621067881.XU patent/CN206091882U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222845A (en) * | 2018-04-09 | 2018-06-29 | 成都百施特金刚石钻头有限公司 | The cyclic annular cutting alloy tooth of drill and petroleum extraction tools |
| CN108222845B (en) * | 2018-04-09 | 2024-04-26 | 成都百施特金刚石钻头有限公司 | Annular cutting alloy tooth for drilling and production tool |
| CN109882076A (en) * | 2019-04-10 | 2019-06-14 | 河南理工大学 | A kind of inserting column formula gas drainage drill bit |
| CN110080686A (en) * | 2019-05-14 | 2019-08-02 | 河南四方达超硬材料股份有限公司 | A kind of polycrystalline diamond down-the-hold drill bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102434105B (en) | Composite bit with rotary cut rock-breaking function | |
| CN107842317A (en) | Hard-rock boring punching composite drill bit | |
| CN102392605A (en) | Compound bit formed by PDC (polycrystalline diamond compact) bits and rotary cutting bit | |
| CN105569563A (en) | Rotary drilling rig bit capable of impact drilling | |
| CN108729924A (en) | A kind of urban hard rock tunnel mechanical excavation rapid constructing method | |
| CN105649539A (en) | Combined cutting PDC (polycrystalline diamond compact) bit provided with breaking hammer | |
| US20130306379A1 (en) | Annulus Ring Hole Drill | |
| CN202467663U (en) | Gradient structure diamond-cemented carbide composite ball tooth | |
| CN202493219U (en) | Combined bit formed by peeling bits and PDC (Polycrystalline Diamond Compact) blades | |
| CN110359847A (en) | A kind of three concentric drill bits of gear wheel PDC | |
| CN206091882U (en) | Formula down --hole hammer drill tied in a bundle advances to use polycrystalline diamond down --hole drill bit | |
| CN201078233Y (en) | Combined hard metal mine coal cutter bit | |
| CN101812971B (en) | Combined bit | |
| CN102022084B (en) | Compound single cone bit | |
| CN213627443U (en) | Polycrystalline diamond compact bit with butterfly-shaped cloth teeth | |
| CN203867471U (en) | Gauge protection down-the-hole drill bit | |
| CN202441267U (en) | Combined drill bit having rock-breaking function through rotary cutting | |
| CN201517372U (en) | Pneumatic punching and shaving drillbit for complicated mountainous regions | |
| CN204782795U (en) | Mining tri -cone bit alloy tooth | |
| CN112004985B (en) | Drill bit with wear-resistant protection | |
| CN201943582U (en) | Combined type singe-roller bit | |
| CN205840789U (en) | A kind of all standing type cone palm sheet | |
| CN202441259U (en) | Combined drill bit formed by rotary-cutting drill bit and cone drill bit | |
| CN102400646A (en) | Composite bit formed by rotary cut bit and roller bit | |
| CN210714476U (en) | Down-the-hole hammer drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |