CN102071939A - High-wear-resistance cutting pick - Google Patents
High-wear-resistance cutting pick Download PDFInfo
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- CN102071939A CN102071939A CN 201110009624 CN201110009624A CN102071939A CN 102071939 A CN102071939 A CN 102071939A CN 201110009624 CN201110009624 CN 201110009624 CN 201110009624 A CN201110009624 A CN 201110009624A CN 102071939 A CN102071939 A CN 102071939A
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- pick
- wear body
- cutting pick
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Abstract
The invention discloses a high-wear-resistance cutting pick, which comprises a cutting pick handle (1) and a cutting pick head (2) and is characterized in that: the center of the front end part of the cutting pick handle (1) is provided with a groove; the back end of a wear resistant body (3) is provided with a boss; the front end part of the wear resistant body (3) is provided with a cutting pick fixing groove; the boss of the wear resistant body (3) is pressed into and integrally welded with the groove of the cutting pick handle (1) in an interference fit way; and the back end of the cutting pick head (2) is fixed in the cutting pick fixing groove of the wear resistant body. In the high-wear-resistance cutting pick, the wear resistant body is arranged between the cutting pick handle and the cutting pick head, so that the wear resistance of the cutting pick is enhanced, the impact resistance of the cutting pick is enhanced, the service life of the cutting pick is greatly prolonged, production cost is lowered, and economic benefit is increased.
Description
Technical field
The present invention relates to a kind of improvement of pick, belong to the mining apparatus field, specifically a kind of high abrasion pick.
Background technology
Pick is the critical component on the large-scale digger; the cutting pick head composition that this pick comprises the pick handle and is connected in pick pommel portion; cutting pick head and pick handle are pressed into silver brazing or copper brazing or interference and are connected; at the cone segments external surface of the pick handle two ring gauge teeths that have been equally spaced; in use, gauge teeth directly contacts with work plane, and gauge teeth is wearing and tearing in advance; can effectively protect pick handle and cutting pick head like this, improve anti-wear performance.But this coal cutting pick still has the following disadvantages: the one, because the cone segments end wall of the pick handle around the cutting pick head is a planar annular, the planar annular of this cone segments end wall, in impacting pick, it also is the position of stressed maximum, so, be easy to be worn and damage, although be the also not heavy wear of cutting pick head and gauge teeth, the cone segments end wall planar annular of pick handle is in case after the wearing and tearing, also cause coal cutting pick not use in the same old way, through using proof, the driving tooth is using blunt that pick just weares and teares after 20%, has so just increased the load of development machine, has also increased power consumption, the development machine speed of service slows down, and has also shortened the application life of development machine; The 2nd, because gauge teeth is installed on the sidewall, under the situation of serious bump, come off easily, the guarantor of front side is through tooth, very easily comes off under the situation that the planar annular of cone segments end wall damages, and causes and can not use; The 3rd, after the wearing and tearing, can together grind away the pick handle, so just positive energy integral replacing is changed the frequency height, has increased cost of production.
Summary of the invention
The object of the present invention is to provide a kind of rotation anti-wear performance and shock resistance that can increase pick, guarantee the fastness of never wornout cutting pick head, effectively prolong the pick high abrasion pick in application life.
For reaching above purpose, the technical solution adopted in the present invention is: this high abrasion pick, comprise pick handle and cutting pick head, it is characterized in that: the leading section center of described pick handle is provided with groove, the rear end of wear body is provided with boss, the leading section of wear body is provided with the cutting pick head fixed groove, and the boss of wear body adopts the mode of interference fit to be pressed in the groove of pick handle and is welded as a whole, and the rear end of cutting pick head is fixed in the cutting pick head fixed groove of wear body.
The present invention also implements by following measure: be provided with annular groove welding seam between described wear body and the pick handle, adopt carbon-dioxide arc welding or argon arc welding welding in annular groove welding seam; Adopting silver brazing or copper brazing or interference to be pressed into ways of connecting between cutting pick head and the wear body fixes.
Described pick handle is made by the 42CrMo steel.
Described wear body is made by 4Cr5MoSiV1,4Cr5W2VSi, 5Cr3Mn1SiMo1V or Cr12Mo1V1 material.
Described cutting pick head is by diamond and carbide alloy is compound makes.
The section angle of described annular groove welding seam is 30 degree, and symmetry is located at wear body and the corresponding mutually end of pick handle.
Beneficial effect of the present invention is: compare with the coal cutting pick of present use, owing between pick handle and cutting pick head, be provided with wear body, this wear body can be with the front end complete closed of pick handle, both further increased the anti-wear performance of pick, also increased the shock resistance of pick, can significantly improve the application life of pick, in use, cutting pick head contacts the work plane taking up wear with wear body, because wear body has certain thickness, so, after the wear body periphery weares and teares fully, also can not be damaged to the front end of pick handle, so just guaranteed the serviceability rate of pick handle, prolong the life-span of pick, reduced cost of production, improved economic benefit.
Description of drawings
Fig. 1 cuts open schematic diagram for the structure master of the present invention office of looking.
Among the figure: 1, pick handle; 2, cutting pick head; 3, wear body; 4, annular groove welding seam.
The specific embodiment
Make the present invention with reference to Fig. 1.This high abrasion pick, comprise pick handle 1 and cutting pick head 2, it is characterized in that: the leading section center of described pick handle 1 is provided with groove, the rear end of wear body 3 is provided with boss, the leading section of wear body 3 is provided with the cutting pick head fixed groove, the boss of wear body 3 adopts the mode of interference fit to be pressed in the groove of pick handle 1 and is welded as a whole, and the rear end of cutting pick head 2 is fixed in the cutting pick head fixed groove of wear body 3.
Be provided with annular groove welding seam 4 between described wear body 3 and the pick handle 1, in annular groove welding seam 4, adopt carbon-dioxide arc welding or argon arc welding welding, so that with wear body 3 and 1 firm being welded as a whole of pick handle; Can adopt silver brazing or copper brazing or interference to be pressed into ways of connecting between cutting pick head 2 and the wear body 3 fixes.
Described pick handle 1 is made by the 42CrMo steel.
Described wear body 3 is made by 4Cr5MoSiV1,4Cr5W2VSi, 5Cr3Mn1SiMo1V or Cr12Mo1V1 material.
Described cutting pick head 2 is by diamond and carbide alloy is compound makes.
The section angle of described annular groove welding seam 4 is 30 degree, symmetry is located at wear body 3 and the corresponding mutually end of pick handle 1, be the slope angles that 15 degree are respectively arranged on the corresponding end face of wear body 3 and pick handle 1, so that fill welding material in annular groove welding seam 4, make wear body 3 be connected firmly into as a whole with pick handle 1, simultaneously, in use, it can not wear and tear cutting pick head 2 under certain service condition, can use repeatedly, when wear body 3 and 1 heavy wear of pick handle behind certain Cheng Du, cutting pick head 2 is taken off, changed wear body 3 and pick handle 1 afterwards, make new high abrasion pick again with the current cutting pick head of taking off 2 and continue to use, reduce the pick use cost so greatly, improved productivity effect.
Embodiment 1: making model is the high abrasion pick of U95.
The length overall of pick handle 1 and wear body 3 is 167 millimeters; wear body 3 adopts 4Cr5MoSiV1 to be made; cutting pick head 2 is by diamond and carbide alloy is compound makes; pick handle 1 is made by the 42CrMo steel; the upper surface diameter of wear body 3 is 20 millimeters; 34 millimeters of middle part diameters; the sidewall between upper surface and the middle part and the angle of axis are 35 degree; 34 millimeters of base diameters; height from the upper surface to the bottom end face is 20 millimeters; the boss diameter of wear body 3 bottoms is 15 millimeters; highly be 10 millimeters; the diameter of the cutting pick head fixed groove of wear body 3 front center is 15 millimeters; the degree of depth is 10 millimeters; the groove shapes size of pick handle 1 is suitable with boss; the shape at pick handle 1 rear portion is with traditional identical; can adopt silver brazing between cutting pick head 2 and the wear body 3; the section angle of described annular groove welding seam 4 is 30 degree; symmetry is located at wear body 3 and the corresponding mutually end of pick handle 1; be the slope angles that 15 degree are respectively arranged on the corresponding end face of wear body 3 and pick handle 1; the boss of wear body 3 adopts the mode of interference fit to be fixed in the groove of pick handle 1, adopts carbon-dioxide arc welding or argon arc welding welding in the annular groove welding seam 4 between wear body 3 and the pick handle 1.
Embodiment 2: making model is the high abrasion pick of U84.
The length overall of pick handle 1 and wear body 3 is 135 millimeters; wear body 3 adopts 4Cr5W2VSi to be made; cutting pick head 2 is by diamond and carbide alloy is compound makes; pick handle 1 is made by the 42CrMo steel; the upper surface diameter of wear body 3 is 16 millimeters; 29 millimeters of middle part diameters; the sidewall between upper surface and the middle part and the angle of axis are 30 degree; 29 millimeters of base diameters; height from the upper surface to the bottom end face is 20 millimeters; the boss diameter of wear body 3 bottoms is 15 millimeters; highly be 10 millimeters; the diameter of the cutting pick head fixed groove of wear body 3 front center is 15 millimeters; the degree of depth is 10 millimeters; the groove shapes size of pick handle 1 is suitable with boss; the shape at pick handle 1 rear portion is with traditional identical; can adopt copper brazing between cutting pick head 2 and the wear body 3; the section angle of described annular groove welding seam 4 is 30 degree; symmetry is located at wear body 3 and the corresponding mutually end of pick handle 1; be the slope angles that 15 degree are respectively arranged on the corresponding end face of wear body 3 and pick handle 1; the boss of wear body 3 adopts the mode of interference fit to be fixed in the groove of pick handle 1, adopts carbon-dioxide arc welding or argon arc welding welding in the annular groove welding seam 4 between wear body 3 and the pick handle 1.
Embodiment 3: making model is the high abrasion pick of U135.
The length overall of pick handle 1 and wear body 3 is 145 millimeters; wear body 3 adopts 5Cr3Mn1SiMo1V or Cr12Mo1V1 to be made; cutting pick head 2 is by diamond and carbide alloy is compound makes; pick handle 1 is made by the 42CrMo steel; the upper surface diameter of wear body 3 is 24 millimeters; 36 millimeters of middle part diameters; the sidewall between upper surface and the middle part and the angle of axis are 49 degree; 38 millimeters of base diameters; height from the upper surface to the bottom end face is 25 millimeters; the boss diameter of wear body 3 bottoms is 20 millimeters; highly be 10 millimeters; the diameter of the cutting pick head fixed groove of wear body 3 front center is 16 millimeters; the degree of depth is 14 millimeters; the groove shapes size of pick handle 1 is suitable with boss; the shape at pick handle 1 rear portion is with traditional identical; can adopt copper brazing between cutting pick head 2 and the wear body 3; the section angle of described annular groove welding seam 4 is 30 degree; symmetry is located at wear body 3 and the corresponding mutually end of pick handle 1; be the slope angles that 15 degree are respectively arranged on the corresponding end face of wear body 3 and pick handle 1; the boss of wear body 3 adopts the mode of interference fit to be fixed in the groove of pick handle 1, adopts carbon-dioxide arc welding or argon arc welding welding in the annular groove welding seam 4 between wear body 3 and the pick handle 1.
Claims (4)
1. high abrasion pick, comprise pick handle (1) and cutting pick head (2), it is characterized in that: the leading section center of described pick handle (1) is provided with groove, the rear end of wear body (3) is provided with boss, the leading section of wear body (3) is provided with the cutting pick head fixed groove, the boss of wear body (3) adopts the mode of interference fit to be pressed in the groove of pick handle (1) and is welded as a whole, and the rear end of cutting pick head (2) is fixed in the cutting pick head fixed groove of wear body (3).
2. high abrasion pick according to claim 1 is characterized in that: be provided with annular groove welding seam (4) between described wear body (3) and the pick handle (1), adopt carbon-dioxide arc welding or argon arc welding welding in annular groove welding seam (4); Adopting silver brazing or copper brazing or interference to be pressed into ways of connecting between cutting pick head (2) and the wear body (3) fixes.
3. high abrasion pick according to claim 1 is characterized in that: described wear body (3) is made by 4Cr5MoSiV1,4Cr5W2VSi, 5Cr3Mn1SiMo1V or Cr12Mo1V1 material.
4. high abrasion pick according to claim 2 is characterized in that: the section angle of described annular groove welding seam (4) is 30 degree, and symmetry is located at wear body (3) and the corresponding mutually end of pick handle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110009624 CN102071939A (en) | 2011-01-18 | 2011-01-18 | High-wear-resistance cutting pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110009624 CN102071939A (en) | 2011-01-18 | 2011-01-18 | High-wear-resistance cutting pick |
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| Publication Number | Publication Date |
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| CN102071939A true CN102071939A (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110009624 Pending CN102071939A (en) | 2011-01-18 | 2011-01-18 | High-wear-resistance cutting pick |
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| CN (1) | CN102071939A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047547A (en) * | 2013-03-12 | 2014-09-17 | 桂林卡乐工程钻石科技有限公司 | Trajectory polycrystalline mining tool and method for manufacturing tool |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0122893A1 (en) * | 1983-03-23 | 1984-10-24 | Santrade Ltd. | Excavating tool |
| DE10163717C1 (en) * | 2001-12-21 | 2003-05-28 | Betek Bergbau & Hartmetall | Chisel, for a coal cutter, comprises a head having cuttings-receiving pockets arranged a distance apart between the tip and an annular groove and running around the head to form partially concave cuttings-retaining surfaces facing the tip |
| RU2258809C1 (en) * | 2004-04-09 | 2005-08-20 | Гриневицкий Юрий Александрович | Mineral and artificial material cutting device |
| CN101457643A (en) * | 2007-12-11 | 2009-06-17 | 佳木斯大学 | Subsection composite pick-shaped mining pick |
| CN101457644A (en) * | 2007-12-11 | 2009-06-17 | 佳木斯大学 | Production process method of dual metal pick |
| CN101852080A (en) * | 2010-05-17 | 2010-10-06 | 江阴源丰科技热处理有限公司 | Cutting pick, cutting pick head and manufacturing method thereof |
| CN101858214A (en) * | 2009-04-08 | 2010-10-13 | 上海欧来节特机电设备有限公司 | Rock-penetrating pick tool |
| CN201943700U (en) * | 2011-01-18 | 2011-08-24 | 张虎 | High abrasion-resistant cutting pick |
-
2011
- 2011-01-18 CN CN 201110009624 patent/CN102071939A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0122893A1 (en) * | 1983-03-23 | 1984-10-24 | Santrade Ltd. | Excavating tool |
| DE10163717C1 (en) * | 2001-12-21 | 2003-05-28 | Betek Bergbau & Hartmetall | Chisel, for a coal cutter, comprises a head having cuttings-receiving pockets arranged a distance apart between the tip and an annular groove and running around the head to form partially concave cuttings-retaining surfaces facing the tip |
| RU2258809C1 (en) * | 2004-04-09 | 2005-08-20 | Гриневицкий Юрий Александрович | Mineral and artificial material cutting device |
| CN101457643A (en) * | 2007-12-11 | 2009-06-17 | 佳木斯大学 | Subsection composite pick-shaped mining pick |
| CN101457644A (en) * | 2007-12-11 | 2009-06-17 | 佳木斯大学 | Production process method of dual metal pick |
| CN101858214A (en) * | 2009-04-08 | 2010-10-13 | 上海欧来节特机电设备有限公司 | Rock-penetrating pick tool |
| CN101852080A (en) * | 2010-05-17 | 2010-10-06 | 江阴源丰科技热处理有限公司 | Cutting pick, cutting pick head and manufacturing method thereof |
| CN201943700U (en) * | 2011-01-18 | 2011-08-24 | 张虎 | High abrasion-resistant cutting pick |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047547A (en) * | 2013-03-12 | 2014-09-17 | 桂林卡乐工程钻石科技有限公司 | Trajectory polycrystalline mining tool and method for manufacturing tool |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |