CN203441372U - Diamond composite tooth down-the-hole drill bit - Google Patents
Diamond composite tooth down-the-hole drill bit Download PDFInfo
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- CN203441372U CN203441372U CN201320461759.0U CN201320461759U CN203441372U CN 203441372 U CN203441372 U CN 203441372U CN 201320461759 U CN201320461759 U CN 201320461759U CN 203441372 U CN203441372 U CN 203441372U
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- teeth
- composite
- composite teeth
- drill bit
- diamond composite
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Abstract
The utility model discloses a diamond composite tooth down-the-hole drill bit, which comprises a base, composite tooth sleeves and a plurality of composite teeth, wherein the composite teeth are arranged on the end surface of the base through the composite tooth sleeves matched with the composite teeth, the composite teeth are divided into two kinds including edge teeth and middle teeth, the edge teeth are arranged at the circumference of the end surface of the base and outwards extend tipsily, the middle teeth are vertically arranged on the end surface of the base and vertically and outwards extend, and the edge teeth or the middle teeth are PCD (polycrystalline diamond) composite teeth. The drill bit provided by the utility model has the advantages that high wear resistance, good impact resistance and stable service life are realized, in addition, the diameter size of the down-the-hole drill bit and the diameter size and the number of the composite teeth can be determined according to different stratum conditions, and good effects are realized.
Description
Technical field
The utility model relates to a kind of diamond composite teeth down-the-hold drill bit, for down-the-hole air hammer, specifically can be used for a kind of superhard-material down-the-hole drill in exploration, earth and rock works, mining boring and probing exploitation field, petroleum vapour field.
Background technology
At present, the down-the-hold drill bit of tungsten carbide button's post tooth head has been widely used in producing, and in drilling engineering, brought into play huge effect, but when the stratum in the face of extremely hard, hard alloy columnar teeth head abrasion resistance, impact resistance are poor, cause drilling life of bit short, improved the cost of rock drilling, extended construction period; Therefore be badly in need of the demand that a kind of long Novel down-the-hole drill of efficiency high life meets market.
Utility model content
The purpose of this utility model is to provide a kind of Novel down-the-hole drill to meet the demand in market, in order to improve the application life of tooth head.
It is as follows that the utility model solves the problems of the technologies described above taked technical scheme:
A kind of diamond composite teeth down-the-hold drill bit, comprise: pedestal, composite teeth cover and a plurality of composite teeth, described a plurality of composite teeth is set on the end face of pedestal by the composite teeth matching with it, wherein, described composite teeth is divided into again two kinds, heel teeth and middle tooth, and described heel teeth is located at surrounding the outward-dipping extension of pedestal end face, and described middle tooth is vertical in pedestal end face and vertically stretches out, wherein, described a plurality of heel teeth or middle tooth are polycrystal diamond composite teeth PCD.
Further, preferred structure is, described polycrystal diamond composite teeth PCD comprises alloy part and be located at the composite bed in alloy part, and wherein, composite bed is that spheroidal and tilted conical form, and alloy is partly taper type.
Further, preferably structure is, the big or small ￠ 5mm-￠ 50mm of described polycrystal diamond composite teeth PCD, and quantity is 2～50.
Further, preferred structure is, described composite teeth alloy part coordinates with described composite teeth cover, and the mode by interference fit is fixed on the end face of pedestal, and welds together by the soldered leaving in advance.
This use is novel taked such scheme after, have high-wearing feature, excellent impact resistance energy and stable application life, and can determine diameter and the quantity of down-the-hold drill bit diameter, composite teeth according to different formation conditions, there is good effect.
Other features and advantages of the utility model will be set forth in the following description, and, partly from manual, become apparent, or understand by implementing the utility model.The purpose of this utility model and other advantages can be realized and be obtained by specifically noted structure in the manual write, claims and accompanying drawing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in detail, so that above-mentioned advantage of the present utility model is clearer and more definite.
Fig. 1 is the structural representation of the utility model diamond composite teeth down-the-hold drill bit;
Fig. 2 is the schematic diagram of the pedestal end face of the utility model diamond composite teeth down-the-hold drill bit;
Fig. 3 is the schematic diagram of the heel teeth of the utility model diamond composite teeth down-the-hold drill bit;
Fig. 4 is the schematic diagram of the middle tooth of the utility model diamond composite teeth down-the-hold drill bit;
Fig. 5 is the middle tooth of the utility model diamond composite teeth down-the-hold drill bit and the combination schematic diagram of tooth cover.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.
Specifically, in order to overcome existing carbide alloy down-the-hold drill bit in the deficiency aspect abrasion resistance and rock penetration performance, the utility model provides a kind of polycrystal diamond composite teeth PDC down-the-hold drill bit, it has high-wearing feature, excellent impact resistance energy and stable application life, and can be according to different formation conditions, determine diameter and the quantity of down-the-hold drill bit diameter, PDC composite teeth, only have the design of science, could ensure the superperformance of down-the-hold drill bit.
Wherein, the utility model composite teeth down-the-hold drill bit, wherein, the pedestal 2, composite teeth cover 3 and a plurality of PDC composite teeth that comprise steel body, described a plurality of PDC composite teeth is overlapped the one end that is all arranged on steel susceptor body by composite teeth, described PDC composite teeth comprises heel teeth and middle tooth, and a plurality of heel teeths or middle tooth are PCD composite teeth.
Specifically, as shown in Fig. 1,2,3,4,5, the utility model comprises steel susceptor body 2, composite teeth 1 and composite teeth cover 3, a plurality of composite teeth 1 are all embedded in composite teeth cover 3, wherein, are divided into heel teeth 1 and middle tooth 5 in a plurality of composite teeth, a plurality of heel teeths 1 or middle tooth 5 can, according to different formation conditions, determine diameter and the quantity of down-the-hold drill bit diameter, PDC composite teeth.
Wherein, described PCD composite teeth composite bed is that spheroidal and tilted conical form, and alloy is partly taper type.
Further, described PCD composite teeth size ￠ 5mm-￠ 50mm, quantity is 2～50.
Wherein, described composite teeth alloy part coordinates with described composite teeth cover, and the mode by interference fit is fixed on the end face of pedestal, and welds together by the soldered 4 leaving in advance.
And PCD composite sheet can use separately also can with first use of hard alloy columnar teeth, not etc., the fixed form that adopts welding and interference fit to combine is not embedded in steel body 2 ends by the composite teeth of working good and composite teeth cover for 2～50 of concrete quantity of PCD composite sheet.
Wherein, the utility model preparation process is easy to operate, processing technology is simple, and, tooth head has been used polycrystal diamond composite teeth PDC, in order to solve welding to the inner impact forming of PCD composite teeth, avoided oxycetylene high-temperature soldering, PCD has impact resistance and the abrasion resistance of carbide alloy several times, be the several times of carbide alloy down-the-hold drill bit its application life, rock penetration performance is also significantly improved, in rock drilling, there is very large advantage, particularly in hard rock drilling field, height in existing all size model, low pneumatic down-the-hole bit all can adopt, there are boundless market prospects.
And because composite teeth alloy is partly taper type and coordinates in composite teeth cover, mode by interference fit is fixed on steel susceptor body end, the soldered leaving is in advance being welded, the destruction that such fixed form has avoided high temperature brazing to form composite teeth inside, greatly improve the characteristic property of composite teeth, there is extraordinary effect.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a diamond composite teeth down-the-hold drill bit, is characterized in that, comprising:
Pedestal, composite teeth cover and a plurality of composite teeth, described a plurality of composite teeth is set on the end face of pedestal by the composite teeth matching with it, wherein, described composite teeth is divided into again two kinds, heel teeth and middle tooth, described heel teeth is located at surrounding the outward-dipping extension of pedestal end face, and described middle tooth is vertical in pedestal end face and vertically stretches out; Wherein, described a plurality of heel teeth or middle tooth are polycrystal diamond composite teeth PCD.
2. diamond composite teeth down-the-hold drill bit according to claim 1, it is characterized in that, described polycrystal diamond composite teeth PCD comprises alloy part and is located at the composite bed in alloy part, wherein, composite bed is that spheroidal and tilted conical form, and alloy is partly taper type.
3. diamond composite teeth down-the-hold drill bit according to claim 1 and 2, is characterized in that, the big or small ￠ 5mm-￠ 50mm of described polycrystal diamond composite teeth PCD, and quantity is 2～50.
4. diamond composite teeth down-the-hold drill bit according to claim 2, it is characterized in that, described composite teeth alloy part coordinates with described composite teeth cover, and the mode by interference fit is fixed on the end face of pedestal, and welds together by the soldered leaving in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461759.0U CN203441372U (en) | 2013-07-31 | 2013-07-31 | Diamond composite tooth down-the-hole drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461759.0U CN203441372U (en) | 2013-07-31 | 2013-07-31 | Diamond composite tooth down-the-hole drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441372U true CN203441372U (en) | 2014-02-19 |
Family
ID=50092432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320461759.0U Expired - Lifetime CN203441372U (en) | 2013-07-31 | 2013-07-31 | Diamond composite tooth down-the-hole drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441372U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389524A (en) * | 2014-11-20 | 2015-03-04 | 西南石油大学 | Inverted cone tooth root button bit and processing method thereof |
| 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 |
-
2013
- 2013-07-31 CN CN201320461759.0U patent/CN203441372U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389524A (en) * | 2014-11-20 | 2015-03-04 | 西南石油大学 | Inverted cone tooth root button bit and processing method thereof |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |