CN101852080B - Cutting pick, cutting pick head and manufacturing method thereof - Google Patents
Cutting pick, cutting pick head and manufacturing method thereof Download PDFInfo
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- CN101852080B CN101852080B CN 201010172855 CN201010172855A CN101852080B CN 101852080 B CN101852080 B CN 101852080B CN 201010172855 CN201010172855 CN 201010172855 CN 201010172855 A CN201010172855 A CN 201010172855A CN 101852080 B CN101852080 B CN 101852080B
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- cutting pick
- pick head
- section
- head
- cutting
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Abstract
The invention discloses a cutting pick, a cutting pick head and a manufacturing method thereof. The cutting pick head is welded on the end of the cutting pick, and one end of a conical section is provided with an axial blind hole to be connected with the cutting pick head; the cutting pick head is provided with a working section and a connecting section, and the connecting section is spliced in the axial blind hole; and the working section of the cutting pick head is provided with a conical camber section and a spherical top end, the spherical top end is provided with a diamond layer, and the diamond layer and the conical camber section are connected through smooth transition. The manufacturing method of the cutting pick and the cutting pick head comprises the following steps: die-casting sintered carbide into a shape of a cutting pick head with a die; compounding diamond powder on the surface of the spherical top end of the cutting pick head through die pressing under high temperature and high pressure; carrying out thermal treatment of the processed cutting pick head; and welding the cutting pick head and the cutting pick body with a welding machine. The cutting pick and the cutting pick head have the advantages of simple structure, high hardness and high wear resistance, and the service lives thereof can be prolonged significantly.
Description
Technical field
The present invention relates to a kind of digging facility, be specifically related to the cutting tool on a kind of digger, excavator.
Background technology
Conical pick claims again cutting tool, is mainly used in ore extraction and the coal mining activity of engineering machinery.Its structure is to inlay cylindrical or mushroom head carbide alloy at pick body top; this carbide alloy partly is called as cutting pick head; after cutting pick head is used a period of time; wearing and tearing due to alloy; can not effectively play a protective role to cutting pick body again, cause the pick body by undue wear, in the situation that the alloy on cutting pick head does not play a role fully; will cause cutting pick head after falling for a long time, cause the integral body of pick and cutting pick head to scrap.Still have the cutting pick head of considerable part not to be used this moment, causes unnecessary waste, and the main cause that causes this phenomenon is exactly because hardness, the abrasion resistance of the alloy material that existing cutting pick head is used are strong not.Therefore, be necessary the material of cutting pick head and structure, the processing method of head are made further improvement.
Summary of the invention
The object of the invention is to overcome defective of the prior art, a kind of pick and cutting pick head and manufacture method thereof have been designed, this pick and cutting pick head simple in structure, and it is high that the pick that processes by this manufacture method and cutting pick head have hardness, abrasion resistance is strong, and can be significantly improved its application life.
For achieving the above object, the technical solution used in the present invention is:
A kind of pick and cutting pick head, described cutting pick head is welded on the end of cutting pick body, is provided with conical section and cylindricality connecting rod section on described cutting pick body, is provided with axial blind hole at an end of described conical section, and described axial blind hole is used for connecting described cutting pick head; Be provided with active section and linkage section on described cutting pick head, described linkage section is plugged in described axial blind hole; It is characterized in that, be provided with conical camber section and sphere two, top part on the active section of described cutting pick head, described conical camber section is made of convex surface conical section and concave curved surface conical section two parts, seamlessly transits between described convex surface conical section and concave curved surface conical section; Be provided with diamond layer on described sphere top, an end of described convex surface conical section and described diamond layer are in smoothing junction, and an end of described concave curved surface conical section is connected with the linkage section on cutting pick head; Thickness 2mm～the 4mm of described diamond layer.
The manufacture method of a kind of pick and cutting pick head is characterized in that, described manufacture method comprises the steps:
The first step will become the shape of cutting pick head with die casting after the cemented carbide powder sintering;
Second step is heated to diamond dust the high temperature of 3500 ℃～4000 ℃, and under 8～10 atmospheric pressure, is compounded in the sphere top end surface of described cutting pick head by the mold pressing diamond dust layer that 2mm～4mm is thick;
In the 3rd step, the described cutting pick body that processes is carried out Quenching Treatment;
The 4th step is in the axial blind hole on the described pick of linkage section insertion of described cutting pick head;
In the 5th step, with welding machine, cutting pick head and cutting pick body are welded together.
Wherein, the material of described hard powder metallurgy is YG16C wolfram steel.
Wherein, the material of described cutting pick body is the 42CrMo alloy steel.
Advantage of the present invention and beneficial effect are: due to this pick and cutting pick head at its position, top, one deck diamond that adopted the high-temperature high-pressure craft mold pressing, and diamond has the advantages that hardness is high, anti-wear performance is good.Therefore, this cutting pick head tool has also just had simple in structure, and hardness is high, the characteristics that abrasion resistance is strong.This cutting pick head proves through repetition test, and be more than 3 times of existing carbide alloy cutting pick head application life the application life of this cutting pick head, and its cost is below 1/2 of similar import carbide alloy material cutting pick head.Due to the cutting pick head prolongation in application life, make the user who uses digger in addition, reduced because changing pick and need to shut down the production suspension induced losses that causes.
Description of drawings
Fig. 1 is the structural representation of pick of the present invention and cutting pick head.
In figure: 1, pick; 1-1, conical section; 1-2, cylindricality connecting rod section; 1-3, axial blind hole; 2, cutting pick head; 2-1, active section; 2-1-1, conical camber section; 2-1-1-1, convex surface conical section; 2-1-1-2, concave curved surface conical section; 2-1-2, sphere top; 2-1-3, diamond layer; 2-2, linkage section.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
As shown in Figure 1, the concrete technical scheme of implementing of the present invention is:
A kind of pick 1 and cutting pick head 2, cutting pick head 2 is welded on the end of pick 1 main body, is provided with conical section 1-1 and cylindricality connecting rod section 1-2 on pick 1 main body, is provided with axial blind hole 1-3 at the end of conical section 1-1, and axial blind hole 1-3 is used for connecting cutting pick head 2; Be provided with active section 2-1 and linkage section 2-2 on cutting pick head 2, linkage section 2-2 be plugged on axial blind hole 1-3 in.Be provided with conical camber section 2-1-1 and two parts of sphere top 2-1-2 on the active section of cutting pick head 2, be provided with diamond layer 2-1-3 on described sphere top 2-1-2, be connected smoothly between described diamond layer 2-1-3 and described conical camber section 2-1-1.
Embodiment 2
On the basis of embodiment 1, preferred embodiment of the present invention is, between 2mm～4mm, all the other and embodiment 1 are identical with the THICKNESS CONTROL of diamond layer 2-1-3.
Embodiment 3
On the basis of embodiment 2, preferred embodiment of the present invention is, wherein conical camber section 2-1-1 is made of convex surface conical section 2-1-1-1 and concave curved surface conical section 2-1-1-2 two parts, seamlessly transit between described convex surface conical section 2-1-1-1 and concave curved surface conical section 2-1-1-2, the end of described convex surface conical section 2-1-1-1 and described diamond layer 2-1-3 are in smoothing junction, and the end of described concave curved surface conical section 2-1-1-2 is connected with linkage section 2-2 on cutting pick head 2.
Embodiment 4
On the basis of embodiment 1 to 3 any one, the present embodiment is the manufacture method of a kind of pick and cutting pick head, and described manufacture method comprises the steps:
The first step will become the shape of cutting pick head 2 with die casting after the cemented carbide powder sintering;
Second step is heated to diamond dust the high temperature of 3500 ℃～4000 ℃, and under 8～10 atmospheric pressure, by mold pressing, it is compounded in the sphere top 2-1-2 surface of described cutting pick head 2;
In the 3rd step, described pick 1 main body that processes is carried out Quenching Treatment;
The 4th step is in the axial blind hole 1-3 on the described pick 1 of linkage section 2-2 insertion of described cutting pick head 2;
In the 5th step, with welding machine, cutting pick head 2 and pick 1 main body are welded together.
Embodiment 5
On the basis of embodiment 4, preferred embodiment of the present invention is, the material selection YG16C wolfram steel of described hard powder metallurgy.The material selection 42CrMo alloy steel of described cutting pick body.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a pick and cutting pick head, described cutting pick head is welded on the end of cutting pick body, is provided with conical section and cylindricality connecting rod section on described cutting pick body, is provided with axial blind hole at an end of described conical section, and described axial blind hole is used for connecting described cutting pick head; Be provided with active section and linkage section on described cutting pick head, described linkage section is plugged in described axial blind hole; It is characterized in that, be provided with conical camber section and sphere two, top part on the active section of described cutting pick head, described conical camber section is made of convex surface conical section and concave curved surface conical section two parts, seamlessly transits between described convex surface conical section and concave curved surface conical section; Be provided with diamond layer on described sphere top, an end of described convex surface conical section and described diamond layer are in smoothing junction, and an end of described concave curved surface conical section is connected with the linkage section on cutting pick head; Thickness 2mm～the 4mm of described diamond layer.
2. the manufacture method of a pick and cutting pick head, is characterized in that, described manufacture method comprises the steps:
The first step will become the shape of cutting pick head with die casting after the cemented carbide powder sintering;
Second step is heated to diamond dust the high temperature of 3500 ℃～4000 ℃, and under 8～10 atmospheric pressure, is compounded in the sphere top end surface of described cutting pick head by the mold pressing diamond dust that 2mm～4mm is thick;
In the 3rd step, the described cutting pick body that processes is carried out Quenching Treatment;
The 4th step is in the axial blind hole on the described pick of linkage section insertion of described cutting pick head;
In the 5th step, with welding machine, cutting pick head and cutting pick body are welded together.
3. the manufacture method of pick according to claim 2 and cutting pick head, is characterized in that, the material of described hard powder metallurgy is YG16C wolfram steel.
4. the manufacture method of pick according to claim 2 and cutting pick head, is characterized in that, the material of described cutting pick body is the 42CrMo alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010172855 CN101852080B (en) | 2010-05-17 | 2010-05-17 | Cutting pick, cutting pick head and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010172855 CN101852080B (en) | 2010-05-17 | 2010-05-17 | Cutting pick, cutting pick head and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101852080A CN101852080A (en) | 2010-10-06 |
| CN101852080B true CN101852080B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010172855 Expired - Fee Related CN101852080B (en) | 2010-05-17 | 2010-05-17 | Cutting pick, cutting pick head and manufacturing method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994512B (en) * | 2010-11-03 | 2013-01-23 | 宁波市胜源技术转移有限公司 | Technology for manufacturing cutting tooth for mining coal and minerals |
| CN102071939A (en) * | 2011-01-18 | 2011-05-25 | 张虎 | High-wear-resistance cutting pick |
| CN103659168A (en) * | 2012-09-23 | 2014-03-26 | 佳木斯大学 | Production technology process of cutting tooth |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4604106A (en) * | 1984-04-16 | 1986-08-05 | Smith International Inc. | Composite polycrystalline diamond compact |
| CN1040244A (en) * | 1988-07-20 | 1990-03-07 | 克尼曼托公司 | Hard alloy cutter bit |
| US5161627A (en) * | 1990-01-11 | 1992-11-10 | Burkett Kenneth H | Attack tool insert with polycrystalline diamond layer |
| CN201420554Y (en) * | 2009-05-19 | 2010-03-10 | 牛之平 | Cutting pick with alloy protective base |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090256413A1 (en) * | 2008-04-11 | 2009-10-15 | Majagi Shivanand I | Cutting bit useful for impingement of earth strata |
-
2010
- 2010-05-17 CN CN 201010172855 patent/CN101852080B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4604106A (en) * | 1984-04-16 | 1986-08-05 | Smith International Inc. | Composite polycrystalline diamond compact |
| CN1040244A (en) * | 1988-07-20 | 1990-03-07 | 克尼曼托公司 | Hard alloy cutter bit |
| US5161627A (en) * | 1990-01-11 | 1992-11-10 | Burkett Kenneth H | Attack tool insert with polycrystalline diamond layer |
| CN201420554Y (en) * | 2009-05-19 | 2010-03-10 | 牛之平 | Cutting pick with alloy protective base |
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| CN101852080A (en) | 2010-10-06 |
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