CN201574756U - Development drill bit of cantilever-type development machine - Google Patents
Development drill bit of cantilever-type development machine Download PDFInfo
- Publication number
- CN201574756U CN201574756U CN2009202970596U CN200920297059U CN201574756U CN 201574756 U CN201574756 U CN 201574756U CN 2009202970596 U CN2009202970596 U CN 2009202970596U CN 200920297059 U CN200920297059 U CN 200920297059U CN 201574756 U CN201574756 U CN 201574756U
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- Prior art keywords
- drill bit
- bit
- development
- cantilever
- development machine
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- 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 description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000003245 coal Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
The utility model discloses a development drill bit of a cantilever-type development machine, which relates to the cantilever-type development machine. The development drill bit comprises a drill bit and a cantilever. The drill bit is hemispherical, a plurality of bit seats are arranged on the drill bit, bit heads are arranged on the bit seats, and the spherical angle of the bit heads and the drill bit is 35 to 50 degrees. The shape of the drill bit is designed into a hemispherical shape so as to increase the strength of a drill bit body. Moreover, because the top end of the drill bit has large area and a plurality of bit heads can be distributed on the drill bit, so the characteristic that the conventional drill bit is easy to be damaged due to insufficient top end strength is effectively changed and the work efficiency of the development machine is effectively improved.
Description
Technical field
The utility model relates to a kind of boom-type roadheader, specifically a kind of drill bit of boom-type roadheader.
Background technology
Boom-type roadheader is a kind of collection cutting, load, transhipments etc. are in the efficient heading equipment of one, be widely used in traffic, the tunnel, fields such as mining, to compare its volume little with large-scale heading equipment, in light weight, in being applicable to, the small-size coal mine operation, improve the mechanization level, reduce labor strength, have excavation speed fast, the efficient height, construction quality is good, and the amount of backbreaking is few, reduces engineering cost, and do not destroy the stability of peripheral rock stratum, help advantages such as workman's construction safety, heading end is to be used for the coal petrography that declines, cutting section in the headwork, the quality of its structure directly has influence on the efficient and the work quality of driving, existing drill-shape is elongated coniform, and is uniform-distribution with the tooth head thereon, because the drill end area is little, one or two tooth head only can distribute, its intensity is lower, and very easily damages the tooth head on top under the coal seam in the high load capacity operation, when working on, drill bit very easily ruptures, thereby has influenced the operating efficiency of development machine.
The utility model content
The utility model wants the technical solution problem to provide a kind of drill bit of boom-type roadheader, and is not only simple in structure, and intensity height, long service life.
The utility model is for solving the problems of the technologies described above, and the technical scheme that is provided is: a kind of drill bit of boom-type roadheader comprises drill bit and suspended wall, it is spherical that drill bit is semicircle, be provided with a plurality of pick boxs on drill bit, pick box is provided with the tooth head, and the steradian of tooth head and drill bit is 35 °-50 °.
Described tooth head is an alloy.
The beneficial effects of the utility model are: with the shaped design of drill bit is that semicircle is spherical, thereby increased the intensity of drill body, in addition, because the drill end area is big, a plurality of tooth heads that can distribute have effectively changed original drill bit because the flimsy characteristics of top insufficient strength, and all the other tooth heads are evenly distributed on the semicircle sphere of drill bit along the hand of spiral, and different angles is set, in headwork, thereby effectively improve the operating efficiency of development machine.
Description of drawings
Figure is a structural representation of the present utility model.
Mark among the figure: 1, drill bit, 2, pick box, 3, the tooth head, 4, cantilever.
The specific embodiment
As shown in the figure, a kind of drill bit of boom-type roadheader comprises drill bit 1 and suspended wall 4, and it is spherical that drill bit 1 is semicircle, is provided with a plurality of pick boxs 2 on drill bit 1, and pick box 2 is provided with tooth head 3, and tooth head 3 is 35 °-50 ° with the steradian of drill bit 1.
Suspended wall 4 described in the utility model is driven by the power set of development machine.
Coniform to change semicircle into spherical with original drill bit for the utility model, thereby increased the intensity of drill body, in addition, because the drill end area is big, a plurality of tooth heads that can distribute have effectively changed original drill bit because the flimsy characteristics of top insufficient strength, and all the other tooth heads are evenly distributed on the semicircle sphere of drill bit along the hand of spiral, and different angles is set, in headwork, thereby effectively improve the operating efficiency of development machine.
Claims (2)
1. the drill bit of a boom-type roadheader, comprise drill bit (1) and suspended wall (4), it is characterized in that: it is spherical that drill bit (1) is semicircle, on drill bit (1), be provided with a plurality of pick boxs (2), pick box (2) is provided with tooth head (3), and tooth head (3) is 35 °-50 ° with the steradian of drill bit (1).
2. the drill bit of a kind of boom-type roadheader according to claim 1, it is characterized in that: described tooth head (3) is an alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202970596U CN201574756U (en) | 2009-12-17 | 2009-12-17 | Development drill bit of cantilever-type development machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202970596U CN201574756U (en) | 2009-12-17 | 2009-12-17 | Development drill bit of cantilever-type development machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574756U true CN201574756U (en) | 2010-09-08 |
Family
ID=42694632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202970596U Expired - Fee Related CN201574756U (en) | 2009-12-17 | 2009-12-17 | Development drill bit of cantilever-type development machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266890A (en) * | 2013-04-02 | 2013-08-28 | 三一重型装备有限公司 | Heading machine cutting head and heading machine |
| CN107023291A (en) * | 2016-06-03 | 2017-08-08 | 于殿财 | Broken rock colter and the broken rock device using the colter |
-
2009
- 2009-12-17 CN CN2009202970596U patent/CN201574756U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266890A (en) * | 2013-04-02 | 2013-08-28 | 三一重型装备有限公司 | Heading machine cutting head and heading machine |
| CN103266890B (en) * | 2013-04-02 | 2015-07-08 | 三一重型装备有限公司 | Heading machine cutting head and heading machine |
| CN107023291A (en) * | 2016-06-03 | 2017-08-08 | 于殿财 | Broken rock colter and the broken rock device using the colter |
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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: 20100908 Termination date: 20121217 |