CN106351657A - Novel cutting pick - Google Patents
Novel cutting pick Download PDFInfo
- Publication number
- CN106351657A CN106351657A CN201610877452.7A CN201610877452A CN106351657A CN 106351657 A CN106351657 A CN 106351657A CN 201610877452 A CN201610877452 A CN 201610877452A CN 106351657 A CN106351657 A CN 106351657A
- Authority
- CN
- China
- Prior art keywords
- matrix
- cutting tooth
- pick
- novel cutting
- base body
- 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 claims abstract description 26
- 239000010432 diamond Substances 0.000 claims abstract description 26
- 239000011159 matrix material Substances 0.000 claims description 71
- 238000003466 welding Methods 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 17
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 11
- 239000000956 alloy Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005476 soldering Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten 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
- E21C35/19—Means for fixing picks or holders
- E21C35/197—Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
-
- 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
- E21C35/1837—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)
- Earth Drilling (AREA)
Abstract
The invention discloses a novel cutting pick, which comprises a base body, a cutting tooth arranged on the base body and a conical annular wedge, wherein the cutting tooth is a polycrystalline diamond compound tooth and is composed of a polycrystalline diamond compound layer and a hard alloy base; the cutting pick base body comprises a base body upper portion and a base body lower portion, the inside of the base body upper portion is of a hollow structure, the cutting tooth and the conical annular wedge are embedded into the hollow structure, and a conical hole is formed in the top of the base body upper portion; the hard alloy base of the cutting tooth, the conical annular wedge and the conical hole formed in the top of the base body upper portion are connected together through interference fit. According to the scheme, the novel cutting pick can avoid effects of soldering or hot press to the polycrystalline diamond cutting tooth, the impact resistance and the wearing resistance of the diamond compound tooth are greatly improved, and the service life of the cutting pick is greatly prolonged.
Description
Technical field
The invention belongs to tunnelling machine, coal-winning machine and shield machine, rotary drilling rig field are and in particular to a kind of new section
Tooth.
Background technology
In the prior art, development machine, fully mechanized mining machine and shield machine, rotary drilling rig are widely used in various colliery tunnel piercing works
Journey is constructed；Cutterhead is the critical piece of development machine, fully mechanized mining machine and shield machine, rotary drilling rig, and pick is fixed on by toothholder and cuts
Cut on head, pick generally adopts hard alloy crown (referred to as hard alloy pick), the mostly profile of circular cone, and directly fixes
On corresponding base.In practical work process, cutterhead passes through pick cutting rock in the way of impacting, and is main being subject to
Power part.
Wherein, when running into the higher rock stratum of hardness, by larger shock loading and friction, hard alloy thereon cuts
Odontotripsis is very fast, has had a strong impact on work efficiency.
Traditional pick is all made up of hard-metal insert head and pick matrix two parts, typically adopts copper as solder high temperature
Hard-metal insert head is linked into an integrated entity by welding or hot-pressing technique with pick matrix.High temperature during welding can affect in hard alloy
The organizational structure in portion, reduces the intensity of pick, wearability, impact resistance；Thus reducing the service life of pick.Therefore raw
Impact strength and the more preferable pick of wearability is needed in product.
Content of the invention
In order to solve above-mentioned technical problem, the invention provides the Novel cutting tooth that a kind of impact resistance is strong, wearability is high.
The scheme that present invention solution above-mentioned technical problem is taken is as follows:
A kind of Novel cutting tooth, including matrix, the cutting tooth 1 on matrix and circular cone annular chock 2；Described cutting tooth 1 is
Polycrystal diamond composite teeth, is made up of polycrystalline diamond composite bed 12 and cemented carbide base 13；The glomerocryst gold of described cutting tooth
Hard rock composite bed 12 stretches out in described pick matrix as pick cutting tooth；Described pick matrix includes matrix top 4 and matrix
Bottom 5.
Further, the inside on described matrix top is hollow-core construction, and described hollow-core construction is inlaid with described cutting teeth portion
Part 1 and circular cone annular chock 2；The top on described matrix top is provided with coniform hole 8；Described cutting tooth cemented carbide base 13,
The coniform hole 8 that the top on circular cone annular chock 2 and matrix top is provided with is connected by interference fit.
Further, described matrix top 4 and matrix underpart 5 are connected together by screw thread 6.
Further, described junction is provided with welding groove 7, by being welded together to described welding groove, makes
Be integrally formed.
Further, the top of described matrix bottom 5 is provided with a connection push rod 9, described connection push rod 9 and described cutting tooth
Cemented carbide base 13 and circular cone annular chock 2 contact.
Further, the bottom of described matrix bottom 5 is provided with the jump-ring slot 10 mutually fixing with pick base.
Further, described matrix top area easy to wear is provided with wearing layer 3；Its wearing layer will using argon arc welding solder technology
Tungsten carbide filler rod heap is welded in pick matrix area easy to wear, and is completely covered on the surface of matrix.
Further, described pick matrix top wearing layer 3 annularly welds, and wherein Tungsten Carbide Surfacing layer is along base shaft
Every layer of line direction is sequentially overlapped, and its thickness increases successively perpendicular to matrix axis direction.
Further, described pick matrix is connected with toothholder central rotation ground.
Further, the middle part of described matrix bottom is additionally provided with a cylinder table 11, the screw thread positioned at described matrix bottom
Lower section.
After this invention takes such scheme, it is to avoid impact to polycrystalline diamond cutting tooth of welding or hot pressing, pole
Improve greatly impact resistance and the wearability of diamond composite teeth；And pick area easy to wear increased wearing layer and makes the resistance to of pick
Mill property strengthens, and has good supporting role to diamond composite teeth.
Other features and advantages of the present invention will illustrate in the following description, or by the enforcement present invention
Solution.The purpose of the present invention and other advantages can be passed through specifically noted in the description write, claims and accompanying drawing
Structure realizing and to obtain.
Brief description
Below in conjunction with the accompanying drawings the present invention is described in detail, so that the above-mentioned advantage of the present invention is definitely.
Fig. 1 is the structural representation of pick of the present invention；
Fig. 2 is the structural representation of the matrix top and the bottom of Novel cutting tooth of Fig. 1；
Fig. 3 is the structural representation of the polycrystal diamond composite teeth of pick of the present invention；
Fig. 4 and Fig. 5 is the structural representation of the circular cone annular chock of pick of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Hereinafter implement
Example is used for the present invention is described, but is not limited to the scope of the present invention.
As described in Fig. 1 and 2, be the structural representation of the Novel cutting tooth of the embodiment of the present invention, comprising: matrix, located at base
Cutting tooth part on body and circular cone annular chock 2, described cutting tooth part includes polycrystalline diamond composite bed 12 and hard
Alloy base 13；Described pick matrix includes: matrix top 4 and matrix underpart 5, and the inside on matrix top is hollow-core construction, and
Described hollow-core construction is inlaid with described cutting tooth part and circular cone annular chock 2, additionally, the top on described matrix top is provided with
Coniform hole 8, the polycrystalline diamond composite bed 12 of described cutting tooth is as pick cutting tooth above described matrix.Described cutting tooth
The coniform hole 8 that the top on shown in cemented carbide base 13, circular cone annular chock 2 and matrix top is provided with passes through interference wedging even
It is connected together.
More specifically, described matrix top 4 is passed through together with screwed connection with matrix underpart 5, and matrix top is provided with interior
Screw thread, matrix underpart is provided with male thread, and is provided with a connection push rod 9 at the top of matrix underpart, described connection push rod 9 with described
Cutting tooth cemented carbide base 13 bottom and circular cone ring wedge subgraph 4 bottom phase hold out against, in a preferred embodiment, described company
The place of connecing is provided with welding groove 7, by being welded together to described welding groove, makes one.
Additionally, the bottom of described matrix bottom is provided with the jump-ring slot 10 being connected with pick base, wherein, described pick base
Body is connected with toothholder central rotation ground.
Wherein, when installing, described cutting tooth cemented carbide base 13 and circular cone annular chock 2 pass through on matrix
The pretightning force of the bottom sub-wire button push rod 9 that is connected secures it within coniform hole, then by lower substrate on the pick for pretension
Junction is welded, and when such improvement avoids welding or hot pressing, high temperature is to polycrystalline diamond cutting tooth diamond composite layer
With the impact of alloy base conjunctive tissue, so substantially increase impact resistance and the wearability of novel diamond complex, make
It can be applied in the pick of coal seam, rock stratum is adopted, and replaces hard alloy.
Wherein, Fig. 3 is illustrated, described cutting tooth includes: polycrystalline diamond composite bed 12, cemented carbide base 13；
Described cemented carbide base 13 passes through circular cone ring wedge subgraph 4 and the fastening of described pick matrix top taper hole wedging, and a angle is in assembling
When taper seat fasten wedging completely with conical chock Fig. 4 medial surface.Described polycrystal diamond composite teeth replaces hard-metal insert
Point is as digging tool cut rock.
Wherein, as illustrated in fig. 1 and 2, at least a portion on described matrix top is provided with wearing layer 3, and welding annular in shape, institute
State wearing layer and cover on the surface in the area easy to wear on described pick matrix, this wearing layer adopts argon arc welding technology, by carbonization
Tungsten electrode heap is welded in the area easy to wear of pick matrix；In welding process, make pick matrix along axle using special instrument clamping
Line rotation utilizes argon arc-welding built-up welding tungsten carbide filler rod simultaneously, and before welding matrix is preheated, to base after the completion of welding
Body adopts Insulation.The abrasion resistant effect in matrix area easy to wear is strengthened with this.
Wherein, as shown in figure 4, described chock is in circular cone annular, its circumference is processed a groove 14；During assembling, 13 hard
Alloy base bottom circular cone table top and conical chock Fig. 4 medial surface fasten wedging, circular cone annular chock lateral surface and base completely
Coned face complete wedging in body top 8 fastens.
Wherein, polycrystalline diamond cutting tooth can use existing diamond composite, for example, in preferred embodiment
In, during making, need to produce the cutting tooth of reasonable size by design parameter, put into diamond powder on hard alloy and glue
Knot agent, High Temperature High Pressure sintering forms.
Wherein, the middle part of described matrix bottom is additionally provided with a cylinder table 11, positioned at the lower section of the screw thread of described matrix bottom.
The present invention on the basis of existing technology using polycrystal diamond composite teeth as pick cutting tooth, after improvement cut
Tooth employs screw thread and cutting tooth and circular cone annular chock is fastened in matrix taper fit hole, additionally, pick area easy to wear
Increased wearing layer makes the impact resistance of pick and wearability strengthen.
And, described pick matrix can provide good support to novel diamond composite teeth, and described diamond is combined
Tooth replaces hard-metal insert as digging tool cut rock.
Finally it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein some technical characteristics.
All any modification, equivalent substitution and improvement within the spirit and principles in the present invention, made etc., should be included in
Within protection scope of the present invention.It will be understood by those skilled in the art that specific descriptions above are intended merely to explain the present invention
Purpose, be not intended to limit the present invention.Protection scope of the present invention is limited by claim and its equivalent.
Claims (10)
1. a kind of Novel cutting tooth, including matrix, the cutting tooth 1 on matrix and circular cone annular chock 2；Described cutting tooth 1
For polycrystal diamond composite teeth, it is made up of polycrystalline diamond composite bed 12 and cemented carbide base 13；The glomerocryst of described cutting tooth
Diamond composite layer 12 stretches out in described pick matrix as pick cutting tooth；Described pick matrix includes matrix top 4 and base
Body bottom 5.
2. Novel cutting tooth according to claim 1 it is characterised in that described matrix top inside be hollow-core construction, institute
State hollow-core construction and be inlaid with described cutting tooth part 1 and circular cone annular chock 2；The top on described matrix top is provided with coniform hole
8；The coniform hole 8 that the top of described cutting tooth cemented carbide base 13, circular cone annular chock 2 and matrix top is provided with passed through
It is full of and be connected.
3. Novel cutting tooth according to claim 1 is it is characterised in that described matrix top 4 and matrix underpart 5 pass through screw thread
6 are connected together.
4. Novel cutting tooth according to claim 3 is it is characterised in that described junction is provided with welding groove 7.
5. Novel cutting tooth according to claim 1 is it is characterised in that the top of described matrix bottom 5 is provided with a connection top
Bar 9, described connection push rod 9 is contacted with described cutting tooth cemented carbide base 13 and circular cone annular chock 2.
6. Novel cutting tooth according to claim 1 is it is characterised in that the bottom of described matrix bottom 5 is provided with and pick bottom
The jump-ring slot 10 that seat is mutually fixed.
7. Novel cutting tooth according to claim 1 is it is characterised in that described matrix top area easy to wear is provided with wearing layer 3；
Tungsten carbide filler rod heap is welded in pick matrix area easy to wear using argon arc welding solder technology by its wearing layer, and is completely covered on matrix
Surface.
8. Novel cutting tooth according to claim 7 is it is characterised in that described pick matrix top wearing layer 3 annularly welds
Connect, wherein Tungsten Carbide Surfacing layer is sequentially overlapped for every layer along matrix axis direction, its thickness is perpendicular to matrix axis direction successively
Increase.
9. Novel cutting tooth according to claim 1 is it is characterised in that described pick matrix is connected with toothholder central rotation ground
Connect.
10. Novel cutting tooth according to claim 1 is it is characterised in that the middle part of described matrix bottom is additionally provided with a cylinder
Platform 11, positioned at the lower section of the screw thread of described matrix bottom.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877452.7A CN106351657A (en) | 2016-10-09 | 2016-10-09 | Novel cutting pick |
| PCT/CN2017/092134 WO2018064901A1 (en) | 2016-10-09 | 2017-07-07 | New cutting pick |
| EP17857782.1A EP3524774A4 (en) | 2016-10-09 | 2017-07-07 | New cutting pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877452.7A CN106351657A (en) | 2016-10-09 | 2016-10-09 | Novel cutting pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106351657A true CN106351657A (en) | 2017-01-25 |
Family
ID=57866208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610877452.7A Pending CN106351657A (en) | 2016-10-09 | 2016-10-09 | Novel cutting pick |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3524774A4 (en) |
| CN (1) | CN106351657A (en) |
| WO (1) | WO2018064901A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018064901A1 (en) * | 2016-10-09 | 2018-04-12 | 杨岗 | New cutting pick |
| CN110374514A (en) * | 2019-08-21 | 2019-10-25 | 中交天和机械设备制造有限公司 | The boring cutter of the embedding rock of engineering |
| CN112780273A (en) * | 2021-02-01 | 2021-05-11 | 武汉玖石超硬材料有限公司 | High-impact-resistance anti-falling polycrystalline diamond hard alloy pick head and manufacturing method thereof |
| CN112943239A (en) * | 2019-12-10 | 2021-06-11 | 刘振英 | Novel pick-shaped cutting tooth structure and processing method thereof |
| US11230925B2 (en) * | 2018-11-27 | 2022-01-25 | Element Six Gmbh | Pick tool for road milling |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185445A (en) * | 2019-07-10 | 2019-08-30 | 无锡华瀚能源装备科技有限公司 | Novel heading machine cutting head |
| CN112696206A (en) * | 2020-12-29 | 2021-04-23 | 北京城建轨道交通建设工程有限公司 | Cutting pick for rotary drilling rig |
| CN112901164A (en) * | 2021-02-01 | 2021-06-04 | 武汉玖石超硬材料有限公司 | High-impact-resistance high-wear-resistance polycrystalline diamond composite cutting tooth and manufacturing method thereof |
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|---|---|---|---|---|
| CN203441492U (en) * | 2013-07-31 | 2014-02-19 | 杨岗 | Reinforced cutting tooth |
| CN203925495U (en) * | 2014-05-30 | 2014-11-05 | 无锡正大轴承机械制造有限公司 | Buffer-type welding pick-shaped cutter for coal-winning machine |
| CN204402493U (en) * | 2015-01-13 | 2015-06-17 | 河南博瑞克矿山机械有限公司 | One opens lithosphere pick |
| CN204646233U (en) * | 2015-04-09 | 2015-09-16 | 山东天工岩土工程设备有限公司 | A kind of reinforcement wear-resisting type tool rest |
| CN205154160U (en) * | 2015-11-06 | 2016-04-13 | 盐城澳斯科特矿用设备有限公司 | Take carbide's pick |
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| GB2129853A (en) * | 1982-11-08 | 1984-05-23 | Wimet Mining Limited | Cutter picks and pick mounting arrangements |
| US4804231A (en) * | 1985-06-24 | 1989-02-14 | Gte Laboratories Incorporated | Point attack mine and road milling tool with replaceable cutter tip |
| DE102005001535B3 (en) * | 2005-01-13 | 2006-08-31 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | Mounting for mining cutter has security ring with face engaging flat face on cutter shaft |
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| CN202991038U (en) * | 2012-09-12 | 2013-06-12 | 杨岗 | Strengthened cutting tooth |
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| CN203347793U (en) * | 2013-04-16 | 2013-12-18 | 黑龙江科技学院 | Pickaxe type cutting pick provided with elastic function structure and hard alloy head with non-circular-arc conical surface |
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| CN105333261B (en) * | 2015-11-25 | 2017-07-18 | 南京晨光复合管工程有限公司 | A kind of bolt matable ocean high pressure RTP joints and its assembly method |
| CN106351657A (en) * | 2016-10-09 | 2017-01-25 | 杨岗 | Novel cutting pick |
| CN206513367U (en) * | 2016-10-09 | 2017-09-22 | 杨岗 | A kind of Novel cutting tooth |
-
2016
- 2016-10-09 CN CN201610877452.7A patent/CN106351657A/en active Pending
-
2017
- 2017-07-07 WO PCT/CN2017/092134 patent/WO2018064901A1/en active Application Filing
- 2017-07-07 EP EP17857782.1A patent/EP3524774A4/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203441492U (en) * | 2013-07-31 | 2014-02-19 | 杨岗 | Reinforced cutting tooth |
| CN203925495U (en) * | 2014-05-30 | 2014-11-05 | 无锡正大轴承机械制造有限公司 | Buffer-type welding pick-shaped cutter for coal-winning machine |
| CN204402493U (en) * | 2015-01-13 | 2015-06-17 | 河南博瑞克矿山机械有限公司 | One opens lithosphere pick |
| CN204646233U (en) * | 2015-04-09 | 2015-09-16 | 山东天工岩土工程设备有限公司 | A kind of reinforcement wear-resisting type tool rest |
| CN205154160U (en) * | 2015-11-06 | 2016-04-13 | 盐城澳斯科特矿用设备有限公司 | Take carbide's pick |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018064901A1 (en) * | 2016-10-09 | 2018-04-12 | 杨岗 | New cutting pick |
| US11230925B2 (en) * | 2018-11-27 | 2022-01-25 | Element Six Gmbh | Pick tool for road milling |
| CN110374514A (en) * | 2019-08-21 | 2019-10-25 | 中交天和机械设备制造有限公司 | The boring cutter of the embedding rock of engineering |
| CN112943239A (en) * | 2019-12-10 | 2021-06-11 | 刘振英 | Novel pick-shaped cutting tooth structure and processing method thereof |
| CN112780273A (en) * | 2021-02-01 | 2021-05-11 | 武汉玖石超硬材料有限公司 | High-impact-resistance anti-falling polycrystalline diamond hard alloy pick head and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3524774A4 (en) | 2020-06-17 |
| WO2018064901A1 (en) | 2018-04-12 |
| EP3524774A1 (en) | 2019-08-14 |
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Application publication date: 20170125 |
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| RJ01 | Rejection of invention patent application after publication |