CN203594353U - Component for drilling in coal mine - Google Patents
Component for drilling in coal mine Download PDFInfo
- Publication number
- CN203594353U CN203594353U CN201320658962.7U CN201320658962U CN203594353U CN 203594353 U CN203594353 U CN 203594353U CN 201320658962 U CN201320658962 U CN 201320658962U CN 203594353 U CN203594353 U CN 203594353U
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- China
- Prior art keywords
- drilling
- perforating
- axial surface
- utility
- component
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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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Abstract
Provided is a component for drilling in a coal mine. The component for drilling in the coal mine comprises a drilling end made of high-strength steel, wherein the drilling end is cylindrical, square pits are engraved on the front portion of the axial surface of the drilling end, five or more wedged sliding strips are engraved in the rear portion of the axial surface of the drilling end, and a hole is formed in the top end of the drilling end. The defects that due to the fact that drilling has to be stopped when an end bit needs to be replaced, the end bit is started again, drilling is slowly carried out, and the construction progress cannot be ensured are effectively overcome.
Description
Technical field
The utility model belongs to geological technique field, is specifically related to a kind of colliery perforating parts.
Background technology
The termination of current colliery perforating is all to adopt high strength steel structure conventionally, such high strength steel is in the time running into the abnormal high stone of firmness, will receive unforeseeable retardance and rotate and slow down and even stop, cannot normally work like this, will have to like this to stop changing termination and restart slowly perforating, so just cannot ensure construction speed.
Summary of the invention
The utility model provides a kind of colliery perforating parts, comprise the perforating end of high strength steel, described perforating end is column, and the front of the axial surface of this perforating end engraves square pit, and the rear of the axial surface of this perforating end engraves five above wedge shape draw runners.The top band perforation of described perforating end.Effectively avoid having to stop changing termination and restarted slowly perforating, so just cannot ensure the defect of construction speed.
For achieving the above object, the technical solution of the utility model is:
A kind of colliery perforating parts, comprise the perforating end 1 of high strength steel, and described perforating end 1 is column, and the front of the axial surface of this perforating end 1 engraves square pit 2, and the rear of the axial surface of this perforating end 1 engraves five wedge shape draw runners 3 above.
The top band perforation of described perforating end 1.
The utility model compared with prior art front of the axial surface by perforating end 1 engraves square pit 2, and the rear of the axial surface of this perforating end 1 engraves five above wedge shape draw runners 3, so just can reduce damping.
Accompanying drawing explanation
Fig. 1 is the structural representation of colliery of the present utility model perforating parts.
The specific embodiment
Below by specific embodiment, the utility model is described further:
As shown in Figure 1, colliery perforating parts, comprise the perforating end 1 of high strength steel, and described perforating end 1 is column, the front of the axial surface of this perforating end 1 engraves square pit 2, and the rear of the axial surface of this perforating end 1 engraves five above wedge shape draw runners 3.The top band perforation of described perforating end 1.
Operating principle of the present utility model is to engrave square pit 2 by the front of the axial surface of perforating end 1, and the rear of the axial surface of this perforating end 1 engraves five above wedge shape draw runners 3, so just can reduce damping.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solutions of the utility model content, according to technical spirit of the present utility model, within spirit of the present utility model and principle, the any simple modification that above embodiment is done, be equal to replacement and improvement etc., within all still belonging to the protection domain of technical solutions of the utility model.
Claims (2)
1. colliery perforating parts, it is characterized in that comprising the perforating end (1) of high strength steel, described perforating end (1) is column, the front of the axial surface of this perforating end (1) engraves square pit (2), and the rear of the axial surface of this perforating end (1) engraves five above wedge shape draw runners (3).
2. perforating parts in colliery according to claim 1, the top band perforation of the perforating end (1) described in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658962.7U CN203594353U (en) | 2013-10-24 | 2013-10-24 | Component for drilling in coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658962.7U CN203594353U (en) | 2013-10-24 | 2013-10-24 | Component for drilling in coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594353U true CN203594353U (en) | 2014-05-14 |
Family
ID=50675248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320658962.7U Expired - Fee Related CN203594353U (en) | 2013-10-24 | 2013-10-24 | Component for drilling in coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594353U (en) |
-
2013
- 2013-10-24 CN CN201320658962.7U patent/CN203594353U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20141024 |
|
| EXPY | Termination of patent right or utility model |