CN104712336A - Composite cutting tooth made of polycrystalline diamond and hard alloy - Google Patents
Composite cutting tooth made of polycrystalline diamond and hard alloy Download PDFInfo
- Publication number
- CN104712336A CN104712336A CN201510135427.7A CN201510135427A CN104712336A CN 104712336 A CN104712336 A CN 104712336A CN 201510135427 A CN201510135427 A CN 201510135427A CN 104712336 A CN104712336 A CN 104712336A
- Authority
- CN
- China
- Prior art keywords
- polycrystalline diamond
- carbide alloy
- cutting tooth
- hard alloy
- 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.)
- Pending
Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 45
- 239000010432 diamond Substances 0.000 title claims abstract description 45
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 41
- 239000000956 alloy Substances 0.000 title claims abstract description 41
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000005520 cutting process Methods 0.000 title abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000005476 soldering Methods 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 238000005219 brazing Methods 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1831—Fixing methods or devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1835—Chemical composition or specific material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1837—Mining picks; Holders therefor with inserts or layers of wear-resisting material characterised by the shape
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides an enhancement type cutting tooth head which is simple and compact in structure and high in wear resistance so as to prolong the whole service life of the cutting tooth, and relates to a high-wear-resistance diamond composite cutting tooth capable of improving the efficiency of a mining machine. A composite cutting tooth made of polycrystalline diamond and hard alloy comprises a hard alloy tapered tooth and a cutting tooth steel body, wherein at least one hole is formed in the hard alloy tapered tooth; a polycrystalline diamond column is arranged in each hole. The composite cutting tooth made of the polycrystalline diamond and the hard alloy has very high wear resistance, and the wear resistance of the composite cutting tooth is thousands of times higher than that of the hard alloy, so that the cutting tooth head has very long service life; the diamond has very high wear resistance, so that the radial stability of the part is guaranteed in the using process, and the composite cutting tooth head can be normally consumed.
Description
technical field:
The present invention relates to for digging up mine and excavating the cutting tool of object, be specifically related to a kind of polycrystalline diamond for the equipment such as coal-winning machine, development machine and carbide alloy composite cutter bit.
background technology:
In prior art, mine, driving pick is key element on large-scale coal-winning machine and development machine, carbide alloy cutting pick head and alloy steel weld together by general employing, and it is mainly used in the digging field such as coal mining, tunnelling in coalfield.Along with the raising of coal mining machinery degree, the cutting power of coal-winning machine, development machine continues to increase the mining pick consumption supporting with it brought and also strengthens, and thus has higher requirement to the performance of digging pick.
Although the carbide alloy cutting pick head of current employing has good anti-wear performance compared with steel body, but the requirement in application life can not be met, and because this kind of cutting-gear life is not good, cause changing pick frequently, the efficiency of mining machinery can not be not fully exerted.For this reason, be necessary to provide a kind of new coal winning machine cutting bit, to overcome the problems referred to above.
summary of the invention:
The object of the invention is: for the technical problem of existing existence, provide a kind of simple and compact for structure, enhancement mode cutting pick head that abrasion resistance is high, thus extend the whole service life of pick, improve the high abrasion-proof diamond composite cutter bit of mining machinery efficiency.
The technical solution used in the present invention is: a kind of polycrystalline diamond and carbide alloy composite cutter bit, and comprise the tapered tooth of carbide alloy and pick steel body, the tapered tooth of described carbide alloy is provided with at least one hole, is provided with polycrystalline diamond post in described hole.
Further, the longitudinal axis of described Kong Junyu composite cutter bit is parallel.
Further, the cross section of described polycrystalline diamond post is circular, and length is 1 ~ 60mm, and diameter is 1 ~ 30mm.
Further, the hole on described polycrystalline diamond post and the tapered tooth of carbide alloy adopts interference fit, and the magnitude of interference is 0.01 ~ 0.05mm.
Further, described polycrystalline diamond post is fixed on by the mode of soldering in the hole of the tapered tooth of carbide alloy, and the method for welding of employing is silver soldering, brazing or Laser Welding.
The beneficial effect that the present invention produces is:
1, polycrystalline diamond and carbide alloy composite cutter bit head have high abrasion resistance, are several thousand times of carbide alloy, thus ensure that cutting pick head has the high life-span.
2, because diamond has high abrasion resistance, thus ensure that the radial stability at this position in use procedure, composite cutter bit head is consumed normally.
3, compact conformation of the present invention, production and processing is convenient, because single pick performance improves greatly, the frequency adopting the mining machinery of this pick in use to change pick is reduced greatly, improves digging efficiency, reduces cost of mining.
4, tapered tooth shock resistance is high, abrasion resistance good, and manufacture the pick obtained and can be used on the impulse machine of various fractured rock, realize rapidly and efficiently fractured rock, cost performance is outstanding.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the embodiment of the present invention 1;
Fig. 3 is the top view of the embodiment of the present invention 1;
Fig. 4 is the structural representation of the embodiment of the present invention 2;
Fig. 5 is the top view of the embodiment of the present invention 2.
detailed description of the invention:
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, the present invention is a kind of polycrystalline diamond for equipment such as coal machine, development machines and carbide alloy composite cutter bit, and this pick comprises pick steel body 4 and is positioned at the tapered tooth main body 1 of carbide alloy on pick steel body 4 top.
Be below embodiments of the invention one: as shown in Figures 2 and 3, pick steel body 4 is provided with the tapered tooth main body 1 of carbide alloy, the tapered tooth main body 1 of carbide alloy is provided with 1 comparatively macroscopic void 3, a polycrystalline diamond cylinder 2 is provided with in hole 3, the length of polycrystalline diamond cylinder 2 is 16mm, diameter dimension 13mm.
Polycrystalline diamond cylinder 2 is obtained under the condition of HTHP by diamond synthesis machine, and the thickness of polycrystalline diamond layer is 1.0mm.
Hole 3 in the tapered tooth main body 1 of carbide alloy is obtained by the technique of laser boring, and the size of hole 3 and the matching size of polycrystalline diamond cylinder 2 used close.
Polycrystalline diamond cylinder 2 is inlayed by the mode of interference fit and is fixed in hole 3, and the magnitude of interference that hole 3 and polycrystalline diamond cylinder 2 coordinate controls at 0.04mm.
In the present embodiment the tapered tooth of carbide alloy 1 due to profile of tooth sharper, during work and rock stratum contact area is less, resistance is less, and polycrystalline diamond cylinder 2 has the good abrasion resistance of diamond, the cutting pick head of this kind of structure design is easier to invade rock under identical condition of work, driving speed is faster, and the superiority of its structure can be not fully exerted, and the present embodiment is more conducive to the operating efficiency improving pick.
Be below embodiments of the invention two: as shown in Figure 4 and Figure 5, pick steel body 4 is established a tapered tooth main body 1 of carbide alloy, the tapered tooth main body 1 of carbide alloy is provided with four holes 3, a polycrystalline diamond cylinder 2 is provided with in hole 3, the length of polycrystalline diamond cylinder 2 is 10mm, and diameter dimension is 6mm.
Polycrystalline diamond cylinder 2 is obtained under the condition of HTHP by diamond synthesis machine, and the thickness of polycrystalline diamond layer is 0.8mm.
Hole 3 in carbide alloy tapered tooth main body 1 is preformed in carbide alloy tapered tooth main body 1 is produced, or is obtained by the technique of laser boring, and the size of hole 3 and the matching size of polycrystalline diamond cylinder 2 used close.
Polycrystalline diamond cylinder 2 is fixed in the hole 3 of the tapered tooth main body 1 of carbide alloy by the mode of soldering, and the method for welding of employing is silver soldering, brazing or Laser Welding.
In the present embodiment, polycrystalline diamond cylinder 2 is evenly distributed in the tapered tooth main body 1 of carbide alloy, carbide alloy tapered tooth entirety is made to have better bending resistance anti-twisting property, polycrystalline diamond cylinder 2 distributes alternately in the tapered tooth main body 1 of carbide alloy simultaneously, add the abrasion resistance of the tapered tooth main body 1 of carbide alloy, be more conducive to the application life of improving cutting pick head.
Claims (5)
1. polycrystalline diamond and a carbide alloy composite cutter bit, comprises the tapered tooth of carbide alloy and pick steel body, it is characterized in that: the tapered tooth of described carbide alloy is provided with at least one hole, is provided with polycrystalline diamond post in described hole.
2. a kind of polycrystalline diamond according to claim 1 and carbide alloy composite cutter bit, is characterized in that: the longitudinal axis of described Kong Junyu composite cutter bit is parallel.
3. a kind of polycrystalline diamond according to claim 1 and carbide alloy composite cutter bit, is characterized in that: the cross section of described polycrystalline diamond post is for circular, and length is 1 ~ 60mm, and diameter is 1 ~ 30mm.
4. a kind of polycrystalline diamond according to claim 1 and carbide alloy composite cutter bit, is characterized in that: the hole on described polycrystalline diamond post and the tapered tooth of carbide alloy adopts interference fit, and the magnitude of interference is 0.01 ~ 0.05mm.
5. a kind of polycrystalline diamond according to claim 1 and carbide alloy composite cutter bit, it is characterized in that: described polycrystalline diamond post is fixed on by the mode of soldering in the hole of the tapered tooth of carbide alloy, the method for welding of employing is silver soldering, brazing or Laser Welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510135427.7A CN104712336A (en) | 2015-03-26 | 2015-03-26 | Composite cutting tooth made of polycrystalline diamond and hard alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510135427.7A CN104712336A (en) | 2015-03-26 | 2015-03-26 | Composite cutting tooth made of polycrystalline diamond and hard alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712336A true CN104712336A (en) | 2015-06-17 |
Family
ID=53412016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510135427.7A Pending CN104712336A (en) | 2015-03-26 | 2015-03-26 | Composite cutting tooth made of polycrystalline diamond and hard alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322666A (en) * | 2018-12-11 | 2019-02-12 | 吉林大学 | A kind of sandwiched gradient distribution diadust strengthened pick |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2148353B (en) * | 1983-09-15 | 1986-03-05 | Boart Int Ltd | Mining picks |
| AU2009100297A4 (en) * | 2009-03-31 | 2009-05-14 | Tarpac | Wear Resistant Pick |
| CN102128008A (en) * | 2011-03-24 | 2011-07-20 | 中南大学 | Polycrystalline diamond-hard alloy composite rock breaking button down-the-hole bit and manufacturing process thereof |
| CN102155167A (en) * | 2011-03-24 | 2011-08-17 | 中南大学 | Polycrystalline diamond-hard alloy composite rock-breaking button |
| CN102287187A (en) * | 2010-06-18 | 2011-12-21 | 海德拉采矿工具国际有限公司 | Mineral cutting pick of cutting machine |
| CN102747964A (en) * | 2012-07-11 | 2012-10-24 | 王青俊 | Diamond hard alloy composite tooth for oil exploration and mining |
-
2015
- 2015-03-26 CN CN201510135427.7A patent/CN104712336A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2148353B (en) * | 1983-09-15 | 1986-03-05 | Boart Int Ltd | Mining picks |
| AU2009100297A4 (en) * | 2009-03-31 | 2009-05-14 | Tarpac | Wear Resistant Pick |
| CN102287187A (en) * | 2010-06-18 | 2011-12-21 | 海德拉采矿工具国际有限公司 | Mineral cutting pick of cutting machine |
| CN102128008A (en) * | 2011-03-24 | 2011-07-20 | 中南大学 | Polycrystalline diamond-hard alloy composite rock breaking button down-the-hole bit and manufacturing process thereof |
| CN102155167A (en) * | 2011-03-24 | 2011-08-17 | 中南大学 | Polycrystalline diamond-hard alloy composite rock-breaking button |
| CN102747964A (en) * | 2012-07-11 | 2012-10-24 | 王青俊 | Diamond hard alloy composite tooth for oil exploration and mining |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322666A (en) * | 2018-12-11 | 2019-02-12 | 吉林大学 | A kind of sandwiched gradient distribution diadust strengthened pick |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150617 |