CN101852080A - 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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- CN101852080A CN101852080A CN 201010172855 CN201010172855A CN101852080A CN 101852080 A CN101852080 A CN 101852080A CN 201010172855 CN201010172855 CN 201010172855 CN 201010172855 A CN201010172855 A CN 201010172855A CN 101852080 A CN101852080 A CN 101852080A
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- cutting pick
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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, the excavator.
Background technology
Conical pick claims cutting tool again, is mainly used in the ore extraction and the coal mining activity of engineering machinery.Its structure is to inlay cylindrical at pick body top or mushroom head carbide alloy; this carbide alloy partly is called as cutting pick head; after cutting pick head is used a period of time; because the wearing and tearing of alloy; can not play a protective role to cutting pick body effectively again, cause the pick body by undue wear, under the situation that the alloy on the 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 employed alloy material of existing cutting pick head are strong inadequately.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 objective 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 has the hardness height by pick and the cutting pick head that this manufacture method processes, 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 to connect described cutting pick head; On described cutting pick head, be provided with active section and linkage section, described linkage section be plugged on described axial blind hole in; It is characterized in that be provided with two parts in conical camber section and sphere top on the active section of described cutting pick head, described sphere top is provided with diamond layer, is connected smoothly between described diamond layer and the described conical camber section.
Wherein, the thickness 2mm～4mm of described diamond layer.
Wherein, described conical camber section is made of convex surface conical section and concave curved surface conical section two parts, seamlessly transit between described convex surface conical section and the concave curved surface conical section, one end of described convex surface conical section and described diamond layer smooth connection, an end of described concave curved surface conical section is connected with the linkage section on the cutting pick head.
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 behind the cemented carbide powder sintering;
In second step, diamond dust is heated to 3500 ℃～4000 ℃ high temperature, and under 8～10 atmospheric pressure, it is compounded in the sphere top end surface of described cutting pick head by mold pressing;
In the 3rd step, the described cutting pick body that processes is carried out Quenching Treatment;
In the 4th step, the linkage section of described cutting pick head is inserted in the axial blind hole on the described pick;
In the 5th step, cutting pick head and cutting pick body are welded together with welding machine.
Wherein, the material of described hard powder metallurgy is wolfram steel (YG16C).
Wherein, the material of described cutting pick body is alloy steel (42CrMo).
Advantage of the present invention and beneficial effect are: because this pick and cutting pick head be at its position, top, the mold pressing of employing high-temperature high-pressure craft one deck diamond, and diamond has hardness height, characteristics that anti-wear performance is good.Therefore, this cutting pick head tool has also just had simple in structure, hardness height, 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.Owing to the cutting pick head prolongation in application life, make and reduced the user who uses digger because of changing pick and need shut down the stopping production loss that causes in addition.
Description of drawings
Fig. 1 is the structural representation of pick of the present invention and cutting pick head.
Among the 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 to connect cutting pick head 2; On cutting pick head 2, be provided with active section 2-1 and linkage section 2-2, 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, described sphere top 2-1-2 is provided with diamond layer 2-1-3, is connected smoothly between described diamond layer 2-1-3 and the 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 the 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 smooth connection, the end of described concave curved surface conical section 2-1-1-2 is connected with linkage section 2-2 on the cutting pick head 2.
Embodiment 4
On each basis of embodiment 1 to 3, 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 behind the cemented carbide powder sintering;
In second step, diamond dust is heated to 3500 ℃～4000 ℃ high temperature, and under 8～10 atmospheric pressure, it is compounded in the 2-1-2 surface, sphere top of described cutting pick head 2 by mold pressing;
In the 3rd step, described pick 1 main body that processes is carried out Quenching Treatment;
In the 4th step, the linkage section 2-2 of described cutting pick head 2 is inserted in the axial blind hole 1-3 on the described pick 1;
In the 5th step, cutting pick head 2 and pick 1 main body are welded together with welding machine.
Embodiment 5
On the basis of embodiment 4, preferred embodiment of the present invention is that the material of described hard powder metallurgy is selected wolfram steel YG16C for use.The material of described cutting pick body is selected alloy steel 42CrMo for use.
The above only is a preferred implementation 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 (6)
1. 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 to connect described cutting pick head; On described cutting pick head, be provided with active section and linkage section, described linkage section be plugged on described axial blind hole in; It is characterized in that be provided with two parts in conical camber section and sphere top on the active section of described cutting pick head, described sphere top is provided with diamond layer, is connected smoothly between described diamond layer and the described conical camber section.
2. pick according to claim 1 reaches and cutting pick head, it is characterized in that the thickness 2mm～4mm of described diamond layer.
3. pick according to claim 2 and cutting pick head, it is characterized in that, described conical camber section is made of convex surface conical section and concave curved surface conical section two parts, seamlessly transit between described convex surface conical section and the concave curved surface conical section, one end of described convex surface conical section and described diamond layer smooth connection, an end of described concave curved surface conical section is connected with the linkage section on the cutting pick head.
4. the manufacture method 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 behind the cemented carbide powder sintering;
In second step, diamond dust is heated to 3500 ℃～4000 ℃ high temperature, and under 8～10 atmospheric pressure, it is compounded in the sphere top end surface of described cutting pick head by mold pressing;
In the 3rd step, the described cutting pick body that processes is carried out Quenching Treatment;
In the 4th step, the linkage section of described cutting pick head is inserted in the axial blind hole on the described pick;
In the 5th step, cutting pick head and cutting pick body are welded together with welding machine.
5. the manufacture method of pick according to claim 4 and cutting pick head is characterized in that, the material of described hard powder metallurgy is wolfram steel (YG16C).
6. the manufacture method of pick according to claim 4 and cutting pick head is characterized in that, the material of described cutting pick body is alloy steel (42CrMo).
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 true CN101852080A (en) | 2010-10-06 |
| CN101852080B CN101852080B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Country | Link |
|---|---|
| CN (1) | CN101852080B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994512A (en) * | 2010-11-03 | 2011-03-30 | 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 (5)
| 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 |
| WO2009126521A2 (en) * | 2008-04-11 | 2009-10-15 | Kennametal Inc. | Cutting bit useful for impingement of earth strata |
| CN201420554Y (en) * | 2009-05-19 | 2010-03-10 | 牛之平 | Cutting pick with alloy protective base |
-
2010
- 2010-05-17 CN CN 201010172855 patent/CN101852080B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| WO2009126521A2 (en) * | 2008-04-11 | 2009-10-15 | Kennametal Inc. | Cutting bit useful for impingement of earth strata |
| CN201420554Y (en) * | 2009-05-19 | 2010-03-10 | 牛之平 | Cutting pick with alloy protective base |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994512A (en) * | 2010-11-03 | 2011-03-30 | 宁波市胜源技术转移有限公司 | Technology for manufacturing cutting tooth for mining coal and minerals |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101852080B (en) | 2013-06-12 |
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