CN106351657A - Novel cutting pick - Google Patents

Novel cutting pick Download PDF

Info

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
described
cutting tooth
pick
top
Prior art date
Application number
CN201610877452.7A
Other languages
Chinese (zh)
Inventor
杨岗
Original Assignee
杨岗
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 杨岗 filed Critical 杨岗
Priority to CN201610877452.7A priority Critical patent/CN106351657A/en
Publication of CN106351657A publication Critical patent/CN106351657A/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Miscellaneous items relating to machines for slitting or completely freeing the mineral from the seam
    • E21C35/18Mining picks; Holders therefor
    • E21C35/183Mining picks; Holders therefor with inserts or layers of wear-resistant material

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

A kind of Novel cutting tooth

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.
CN201610877452.7A 2016-10-09 2016-10-09 Novel cutting pick CN106351657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610877452.7A CN106351657A (en) 2016-10-09 2016-10-09 Novel cutting pick

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201610877452.7A CN106351657A (en) 2016-10-09 2016-10-09 Novel cutting pick
EP17857782.1A EP3524774A1 (en) 2016-10-09 2017-07-07 New cutting pick
PCT/CN2017/092134 WO2018064901A1 (en) 2016-10-09 2017-07-07 New 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 CN106351657A (en) 2016-10-09 2016-10-09 Novel cutting pick

Country Status (3)

Country Link
EP (1) EP3524774A1 (en)
CN (1) CN106351657A (en)
WO (1) WO2018064901A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018064901A1 (en) * 2016-10-09 2018-04-12 杨岗 New cutting pick

Citations (5)

* Cited by examiner, † Cited by third party
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

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804231A (en) * 1985-06-24 1989-02-14 Gte Laboratories Incorporated Point attack mine and road milling tool with replaceable cutter tip
CN201367905Y (en) * 2009-01-19 2009-12-23 邵祥顺 Bowl-shaped sheet hard rock cone-shaped bit
CN201420554Y (en) * 2009-05-19 2010-03-10 牛之平 Cutting pick with alloy protective base
GB201215555D0 (en) * 2012-08-31 2012-10-17 Element Six Gmbh Pick assembly, bit assembly and degradation tool
CN202991038U (en) * 2012-09-12 2013-06-12 杨岗 Strengthened cutting tooth
CN103009001B (en) * 2012-12-20 2015-06-10 河南省煤科院耐磨技术有限公司 Production method of cold assembly low-cutting-resistance wear-resistant conical bit
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
CN104500063B (en) * 2014-12-07 2017-07-14 江西耀升钨业股份有限公司 A kind of super coarse-grain hard alloy pick of low cobalt and its manufacture method
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018064901A1 (en) * 2016-10-09 2018-04-12 杨岗 New cutting pick

Also Published As

Publication number Publication date
EP3524774A1 (en) 2019-08-14
WO2018064901A1 (en) 2018-04-12

Similar Documents

Publication Publication Date Title
US20030209366A1 (en) Rotatable point-attack bit with protective body
US4200159A (en) Cutter head, drill bit and similar drilling tools
US20150184464A1 (en) Cutting elements for drill bits for drilling subterranean formations and methods of forming such cutting elements
US5141289A (en) Cemented carbide tip
US5379854A (en) Cutting element for drill bits
US5720357A (en) Cutter assemblies for rotary drill bits
US5848657A (en) Polycrystalline diamond cutting element
US20080036280A1 (en) Pick Assembly
US7600823B2 (en) Pick assembly
AU2009337061B2 (en) Radial tool with superhard cutting surface
US4941711A (en) Cemented carbide tip
US20090267403A1 (en) Resilient Pick Shank
US20110266861A1 (en) Manually Rotatable Tool
US7992945B2 (en) Hollow pick shank
US20040065484A1 (en) Diamond tip point-attack bit
US4911504A (en) Cutter bit and tip
US20080036281A1 (en) Hollow Pick Shank
US20090256413A1 (en) Cutting bit useful for impingement of earth strata
CA2479778C (en) Percussion drill bit and a button therefor
DE102005041509B4 (en) Cutting tool with nozzle for spraying water onto a cutting bit
WO1992004529A1 (en) Rotatable cutting tool
CN102414393B (en) Casing bit and casing reamer designs
CA1212376A (en) Diamond cutting element in a rotating bit
US4911503A (en) Earth engaging cutter bit
CA2023297A1 (en) Tool joint and method of hardfacing same

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination