CN202451047U - All-hydraulic double-pole soft coal drilling machine - Google Patents
All-hydraulic double-pole soft coal drilling machine Download PDFInfo
- Publication number
- CN202451047U CN202451047U CN2012200791714U CN201220079171U CN202451047U CN 202451047 U CN202451047 U CN 202451047U CN 2012200791714 U CN2012200791714 U CN 2012200791714U CN 201220079171 U CN201220079171 U CN 201220079171U CN 202451047 U CN202451047 U CN 202451047U
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- CN
- China
- Prior art keywords
- drilling rod
- drilling
- head
- interior
- gas
- 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
An all-hydraulic double-pole soft coal drilling machine is characterized that a power head 1 is connected with an inner drilling rod 3 and an outer drilling rod 2; the outer drilling rod 2 is connected with an outer drilling head 4; and the inner drilling rod 3 is connected with an inner drilling head 5, the power head 1 provides power to drive the outer drilling rod 2 and the inner drilling rod 3 to rotate, the outer drilling rod 2 and the inner drilling rod 3 drive the outer drilling head 4 and the inner drilling head 5 for drilling, the air is provided for drilling holes through a hollow channel of the inner drilling rod 3, the gas density is diluted, the gas pressure is reduced, the outer drilling rod 2 provides supporting and protection for hole walls when high gas coal layers are likely to collapse, the inner drilling rod 3 can continue to drill, then the function that the gas is drawn and discharged in deep holes is achieved, the hole depth is increased by two to three times, the safe production is guaranteed, and the potential gas hazard is avoided.
Description
Technical field
The utility model relates to a kind of rig, particularly a kind of all-hydraulic pair of bar cherry coal rig.
Background technology
Present rig generally all is that single drill bit creeps into by the single pole rig, can't carry out deep well drilling to high gas layer, and main cause is the hole of collapsing easily, coal seam, the stick of tool bar, and gas pressure is big, and gas cyclone resistance is big, thereby rig can't be crept into.
Summary of the invention
The purpose of the utility model is in order to overcome above defective, a kind of all-hydraulic pair of bar cherry coal rig to be provided.
The purpose of the utility model is achieved in that it comprises unit head, outer drilling rod, interior drilling rod, outer drill bit, interior drill bit, and wherein unit head provides the outer drilling rod of power drive and interior drilling rod rotates, and drives outer drill bit and interior drill bit creeps into by outer drilling rod and interior drilling rod; And through the air-supply in boring of interior drilling rod hollow channel, the dilution gas density reduces gas pressure; When high gas layer is prone to collapse the hole, carry out the hole wall supporting by outer drilling rod, interior drilling rod can be proceeded to creep into; Thereby realize deep hole pump drainage methane function; Hole depth increases by two to three times, ensures safety in production, and gets rid of gas hidden danger.
Drilling rod 3 its entities are hollow settings in described.
Description of drawings
Fig. 1 is the utility model structural representation
1, unit head 2, outer drilling rod 3, interior drilling rod 4, outer drill bit 5, interior drill bit
The specific embodiment
As shown in Figure 1, unit head 1 links to each other with outer drilling rod 2 with interior drilling rod 3; Outer drilling rod 2 links to each other with outer drill bit 4; Interior drilling rod 3 links to each other with interior drill bit 5, and wherein unit head 1 provides outer drilling rod 2 of power drive and interior drilling rod 3 rotations, drives outer drill bit 4 by outer drilling rod 2 with interior drilling rod 3 and creeps into interior drill bit 5; And through the air-supply in boring of interior drilling rod 3 hollow channels, the dilution gas density reduces gas pressure; When high gas layer is prone to collapse the hole, carry out the hole wall supporting by outer drilling rod 2, interior drilling rod 3 can be proceeded to creep into; Thereby realize deep hole pump drainage methane function; Hole depth increases by two to three times, ensures safety in production, and gets rid of gas hidden danger.
Claims (3)
1. one kind all-hydraulic pair bar cherry coal rig, it is characterized in that: it is made up of unit head (1), outer drilling rod (2), interior drilling rod (3), outer drill bit (4), interior drill bit (5), and wherein unit head (1) links to each other with outer drilling rod (2) with interior drilling rod (3); Outer drilling rod (2) links to each other with outer drill bit (4); Interior drilling rod (3) links to each other with interior drill bit (5).
2. a kind of all-hydraulic pair of bar cherry coal rig according to claim 1 is characterized in that: its entity of drilling rod (3) is the hollow setting in described.
3. a kind of all-hydraulic pair of bar cherry coal rig according to claim 1 and 2 is characterized in that: drilling rod (3) and outer drilling rod (2) surface are helical structures in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200791714U CN202451047U (en) | 2012-03-06 | 2012-03-06 | All-hydraulic double-pole soft coal drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200791714U CN202451047U (en) | 2012-03-06 | 2012-03-06 | All-hydraulic double-pole soft coal drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451047U true CN202451047U (en) | 2012-09-26 |
Family
ID=46866917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200791714U Expired - Fee Related CN202451047U (en) | 2012-03-06 | 2012-03-06 | All-hydraulic double-pole soft coal drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556940A (en) * | 2013-11-15 | 2014-02-05 | 河南理工大学 | Dual-channel porous turbulence pressure relief drilling tool for soft coal rock drilling, and construction method of drilling tool |
| CN104265158A (en) * | 2014-10-16 | 2015-01-07 | 天峨县平昌生态农业有限公司 | Rock drill |
-
2012
- 2012-03-06 CN CN2012200791714U patent/CN202451047U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556940A (en) * | 2013-11-15 | 2014-02-05 | 河南理工大学 | Dual-channel porous turbulence pressure relief drilling tool for soft coal rock drilling, and construction method of drilling tool |
| CN103556940B (en) * | 2013-11-15 | 2015-11-18 | 河南理工大学 | Binary channels porous turbulent flow release drilling tool and construction method thereof is crept into for cherry coal rock |
| CN104265158A (en) * | 2014-10-16 | 2015-01-07 | 天峨县平昌生态农业有限公司 | Rock drill |
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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: 20120926 Termination date: 20140306 |