CN201354639Y - Press-in pick-shaped bit - Google Patents
Press-in pick-shaped bit Download PDFInfo
- Publication number
- CN201354639Y CN201354639Y CNU2009200373247U CN200920037324U CN201354639Y CN 201354639 Y CN201354639 Y CN 201354639Y CN U2009200373247 U CNU2009200373247 U CN U2009200373247U CN 200920037324 U CN200920037324 U CN 200920037324U CN 201354639 Y CN201354639 Y CN 201354639Y
- Authority
- CN
- China
- Prior art keywords
- pick
- bit
- head
- handle
- press
- 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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Abstract
The utility model relates to a coal cutter easy-wearing component, in particular to a press-in pick-shaped bit. According to the technical solution provided by the utility model, the press-in pick-shaped bit comprises a bit head and a bit handle which are both integrally connected. The top end portion of a bit body is integrally connected with a bit seat, the bit head is mounted on the bit seat by the bit handle, a mounting cavity is arranged on the top end portion of the bit seat along the axis, the bit handle is mounted in interference fit in the mounting cavity, and the height of the bit head is 1/3-1/2 of the sum height of the bit head and the bit seat. The press-in pick-shaped bit has the advantages of substantially extending the service life, non-cracking, non-easy dropping and the like.
Description
Technical field
The utility model relates to a kind of coal-winning machine easy-abrasion part, especially a kind of forced pick-shaped cutter.
Background technology
Original coal winning machine cutting bit, its head are a fritter carbide alloy through high-frequency welding technology and denticle be combined into, and its application life is limited, are because due to itself structure and the inevitable defective of processing technology.One, a fritter tip of 75 degree is Hardmetal materials, its hardness is higher really, but runs into bigger stone of intensity such as gangue etc., explosion voluntarily in the coal seam.Its two, higher because of welding temperature during combination, following denticle must be annealed, and influences bulk strength naturally, and is not wear-resisting.Through several order of classes or grades at school continuous operations, certainly will the denticle wearing and tearing accelerate, cause the carbide alloy chieftain to rely on and come off because of not having.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and the forced pick-shaped cutter that prolongs greatly a kind of application life, can not split, is difficult for dropping is provided.
The technical scheme that provides according to the utility model, described forced pick-shaped cutter, comprise and be cutting pick head and the pick handle that one connects, pick body top ends is connected with pick box, cutting pick head is installed on the pick box by the pick handle, offer the installation cavity in the pick box top ends along its axis, pick handle interference fit is installed in installs in the cavity, and the height of cutting pick head is 1/3～1/2 of cutting pick head and a pick box height sum.
The utlity model has advantages such as prolonging greatly application life, can not split and be difficult for dropping.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
The utility model mainly is made of with parts such as cavity 5 are installed cutting pick head 1, pick handle 2, pick body 3, pick box 4.
This forced pick-shaped cutter, comprise and be the cutting pick head 1 and pick handle 2 that one connects, pick body 3 top ends are connected with pick box 4, cutting pick head 1 is installed on the pick box 4 by pick handle 2, offer installation cavity 5 in pick box 4 top ends along its axis, pick handle 2 interference fit are installed in installs in the cavity 5, and the height of cutting pick head 1 is cutting pick head 1 and 1/3～1/2 of pick box 4 height sums.
Head combined type coal winning machine cutting bit of the present utility model, its cutting pick head 1 adopts the high-strength special type steel to be made into integration with pick handle 2, after heat treatment adopt interference fit to be pressed in the installation cavity 5 of pick body 3 top ends pick boxs 4, its cutting pick head 1 head is hard, wear-resistant and high temperature resistant, durable in use, Use Limitation surpasses existing domestic, international like product level.
The utility model is high and high temperature resistant, wear-resisting because of cutting pick head 1 intensity own, and cutting pick head 1 height h accounts for cutting pick head 1 and 1/3～1/2 of pick box 4 height sums (the effective active length of whole pick), add that the interference fit overall performance is good, so substantially exceed alloy head pick service time, and can not split, be difficult for dropping.
Claims (1)
1, a kind of forced pick-shaped cutter, comprise and be the cutting pick head (1) and pick handle (2) that one connects, pick body (3) top ends is connected with pick box (4), cutting pick head (1) is installed on the pick box (4) by pick handle (2), it is characterized in that: offer along its axis in pick box (4) top ends cavity (5) is installed, pick handle (2) interference fit is installed in installs in the cavity (5), and the height of cutting pick head (1) is cutting pick head (1) and 1/3～1/2 of pick box (4) height sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200373247U CN201354639Y (en) | 2009-01-21 | 2009-01-21 | Press-in pick-shaped bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200373247U CN201354639Y (en) | 2009-01-21 | 2009-01-21 | Press-in pick-shaped bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201354639Y true CN201354639Y (en) | 2009-12-02 |
Family
ID=41410979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200373247U Expired - Fee Related CN201354639Y (en) | 2009-01-21 | 2009-01-21 | Press-in pick-shaped bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201354639Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852520A (en) * | 2012-05-15 | 2013-01-02 | 山东科技大学 | Self-locking method of excavator cutting tooth cemented carbide bit |
| CN103009001A (en) * | 2012-12-20 | 2013-04-03 | 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 |
-
2009
- 2009-01-21 CN CNU2009200373247U patent/CN201354639Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852520A (en) * | 2012-05-15 | 2013-01-02 | 山东科技大学 | Self-locking method of excavator cutting tooth cemented carbide bit |
| CN103009001A (en) * | 2012-12-20 | 2013-04-03 | 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 |
| 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 |
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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: 20091202 Termination date: 20110121 |