CN2825948Y - Radial mounting type tangential cutting pick - Google Patents
Radial mounting type tangential cutting pick Download PDFInfo
- Publication number
- CN2825948Y CN2825948Y CN 200420089951 CN200420089951U CN2825948Y CN 2825948 Y CN2825948 Y CN 2825948Y CN 200420089951 CN200420089951 CN 200420089951 CN 200420089951 U CN200420089951 U CN 200420089951U CN 2825948 Y CN2825948 Y CN 2825948Y
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- CN
- China
- Prior art keywords
- degree
- pick
- type tangential
- millimeters
- hard alloy
- 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.)
- Expired - Fee Related
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- 239000000956 alloy Substances 0.000 claims abstract description 15
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 1
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
A cutting tooth on a spiral drum of a coal mining machine is designed into a radial installation type tangential cutting tooth in order to improve the cutting rate and prolong the service life of a cutter. The upper end part of the cutting pick hard alloy is provided with a negative fifteen-degree or negative ten-degree chamfer with the width of two points and five millimeters or three points and five millimeters, the front angle of the hard alloy arc surface is transited from a fifteen-degree arc to a forty-five degree, and the effective front angle is thirty degrees.
Description
Affiliated technical field
The utility model relates to the pick on a kind of Shearer Helical Drum, especially radially the installing type tangential pick.
Background technology
Present existing pick, suitable with common pick basically as " tapered pick " and " impact type pick " and " a kind of coal winning machine cutting bit ", and tapered pick and a kind of coal winning machine cutting bit load of mining is big.
Summary of the invention
For improving the piece rate of adopting of coal-winning machine, reduce the coal-winning machine load, the utility model provides a kind of radially installing type tangential pick.
The technical scheme that adopts for utility model is: radially the carbide alloy upper end of installing type tangential pick laterally exceeds pick installation portion width 1/2nd or one times.Hard alloy cutter bit has wide 25 millimeters or 35 millimeters negative 15 degree or the chamfered edge of negative ten degree.Carbide alloy arc surface anterior angle is from 15 degree arc transition to four, 15 degree, its effective rake to three ten degree.So not only increased and adopted the piece anterior angle but also increase point of a knife intensity.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a front view of the present utility model.
Fig. 2 is a lateral view of the present utility model.
1. carbide alloy upper ends among the figure, 2. pick installation portion, 3. hard alloy cutter bit, 4. carbide alloy arc surface.
The specific embodiment
In Fig. 1, carbide alloy upper end (1) laterally exceeds 1/2nd or times of pick installation portion (2) width.Hard alloy cutter bit (3) has wide 25 millimeters or 35 millimeters negative 15 degree or the chamfered edge of negative ten degree.Carbide alloy arc surface (4) anterior angle is from 15 degree arc transition to four, 15 degree, its effective rake to three ten degree.
Claims (4)
1, a kind of radially installing type tangential pick is characterized in that: the carbide alloy upper end exceeds two kinds of structures of 1/2nd or one times of pick installation portion width.
2, radially installing type tangential pick according to claim 1 is characterized in that: hard alloy cutter bit has the chamfered edge of wide 25 millimeters negative ten degree.
3, radially installing type tangential pick according to claim 1 is characterized in that: hard alloy cutter bit has the incline of wide 35 millimeters negative 15 degree.
4, radially installing type tangential pick according to claim 1 is characterized in that: the anterior angle of carbide alloy arc surface is from 15 degree arc transition to four, 15 degree, its effective rake to three ten degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089951 CN2825948Y (en) | 2004-09-28 | 2004-09-28 | Radial mounting type tangential cutting pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089951 CN2825948Y (en) | 2004-09-28 | 2004-09-28 | Radial mounting type tangential cutting pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2825948Y true CN2825948Y (en) | 2006-10-11 |
Family
ID=37066133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420089951 Expired - Fee Related CN2825948Y (en) | 2004-09-28 | 2004-09-28 | Radial mounting type tangential cutting pick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2825948Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425414A (en) * | 2011-11-22 | 2012-04-25 | 无锡速力特机械科技有限公司 | Special grooved pick structure for coal mining machine roller |
| CN105370276A (en) * | 2010-03-18 | 2016-03-02 | 山东天工岩土工程设备有限公司 | Cutting pick, wear and mounting system for mining machine |
| CN105452603A (en) * | 2013-06-18 | 2016-03-30 | 埃斯科公司 | Mineral winning pick, pick holder, and combination |
| CN106795762A (en) * | 2014-09-09 | 2017-05-31 | 必泰克有限两合公司 | Chisel, especially round bar chisel |
-
2004
- 2004-09-28 CN CN 200420089951 patent/CN2825948Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370276A (en) * | 2010-03-18 | 2016-03-02 | 山东天工岩土工程设备有限公司 | Cutting pick, wear and mounting system for mining machine |
| CN102425414A (en) * | 2011-11-22 | 2012-04-25 | 无锡速力特机械科技有限公司 | Special grooved pick structure for coal mining machine roller |
| CN105452603A (en) * | 2013-06-18 | 2016-03-30 | 埃斯科公司 | Mineral winning pick, pick holder, and combination |
| CN106795762A (en) * | 2014-09-09 | 2017-05-31 | 必泰克有限两合公司 | Chisel, especially round bar chisel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 Termination date: 20091028 |