CN201401134Y - Spiral drilling rod with T-type leaf blade - Google Patents
Spiral drilling rod with T-type leaf blade Download PDFInfo
- Publication number
- CN201401134Y CN201401134Y CN2009200324683U CN200920032468U CN201401134Y CN 201401134 Y CN201401134 Y CN 201401134Y CN 2009200324683 U CN2009200324683 U CN 2009200324683U CN 200920032468 U CN200920032468 U CN 200920032468U CN 201401134 Y CN201401134 Y CN 201401134Y
- Authority
- CN
- China
- Prior art keywords
- drilling
- leaf blade
- spiral
- joint
- female joint
- 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 - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a spiral drilling rod with a T-type leaf blade. In the prior art, when spiral drilling is carried out on a fluffy and protruding coal mine, the leaf blade of the spiral drilling rod which is used is rectangular, but the inner wall of a drilling hole can be easily scraped by the rectangular leaf blade (fin) when in drilling so as to cause instable hole drilling/formingand low drilling efficiency. The spiral drilling rod with the T-type leaf blade comprises a male joint, an intermediate rod, a female joint and the spiral leaf blade. The male joint, the intermediaterod and the female joint are sequentially arranged from top to bottom to form an outer flat core rod; the spiral leaf blade is arranged on the outer wall of the outer flat core rod, the section of thespiral leaf blade is in T shape, and chamfering sharp corners are arranged at the two edges of the T shape. When in drilling, the T-shaped part of the leaf blade supports and protects the inner wallof the drilling hole, so as to lessen the scraping action on the drilling wall by the leaf blade, improve the hole drilling/forming stability as well as drilling efficiency, and adapt to the requirements of spiral drilling techniques.
Description
Technical field
The utility model relates to a kind of drilling rod that soft projecting coal bed spiral creeps into that is used for, and is specifically related to a kind of T shaped blade auger stem.
Technical background
In the prior art, the spiral drilling technology is one of effective means that solves soft projecting coal bed gas pumping, and it has advantages such as drilling efficiency height, environmental pollution are little.
At present, carry out spiral when creeping at soft projecting coal bed mine, the auger stem blade that uses is rectangular paddle.In the drilling process, rectangular paddle is scraping boring inwall periodically, causes the Completion of Drilling Hole instability, and overall drilling efficiency is low.
The utility model content
The purpose of this utility model is to provide a kind of T shaped blade auger stem, when creeping into, can reduce the scraping effect of helical blade to the boring inwall, improves the auger shot borehole and becomes porosity and drilling efficiency.
For achieving the above object, the technical solution adopted in the utility model is:
Special character of the present utility model is: described T shaped blade auger stem comprises male joint, intermediate bar, female joint, helical blade; Described male joint, intermediate bar and female joint set gradually from top to bottom and constitute outer flat core bar, and described outer flat core bar outer wall is provided with helical blade, and the cross sectional shape of helical blade is " T " word shape, and wedge angle is removed in the setting of " T " word both sides.
Above-mentioned helical blade is a continuous hurricane band, and is welded on continuously on the outer flat core bar of being made up of male joint, intermediate bar and female joint.
The above-mentioned male joint and the connected mode of female joint are screw connected or the latch interconnection system.
Above-mentioned male joint and the friction welding of female joint difference are at the two ends of intermediate bar.
Above-mentioned male joint, intermediate bar are consistent with the outside dimension of the outer flat core bar that female joint is formed.
The present invention is with respect to prior art, and its advantage is as follows:
The cross sectional shape of drilling rod helical blade is the T word shape, when creeping into, helical blade supporting boring inwall reduces the scraping effect of helical blade to the boring inwall, improve the auger shot borehole and become porosity and drilling efficiency, adapt to the requirement of soft projecting coal bed spiral drilling process.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is a helical blade schematic cross-section of the present utility model.
The specific embodiment
The utility model drilling rod is used for soft projecting coal bed spiral and creeps into drilling rod, is made of male joint 1, intermediate bar 2, female joint 3 and helical blade 4, and helical blade 4 is welded on the outer flat core bar of being made up of male joint 1, intermediate bar 2 and female joint 3; Connected mode between male joint 1 and the female joint 3 is screw-type or bolt-type.
The cross sectional shape of helical blade 4 is the T word shape, and " T " word wedge angle of leaning now to one side, then to the other, for supporting boring inwall provides technical guarantee.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1, T shaped blade auger stem is characterized in that: described T shaped blade auger stem comprises male joint (1), intermediate bar (2), female joint (3), helical blade (4); Described male joint (1), intermediate bar (2) and female joint (3) set gradually from top to bottom and constitute outer flat core bar, described outer flat core bar outer wall is provided with helical blade (4), the cross sectional shape of helical blade (4) is " T " word shape, and wedge angle is removed in the setting of " T " word both sides.
2, T shaped blade auger stem according to claim 1, it is characterized in that: described helical blade (4) is a continuous hurricane band, and is welded on continuously on the outer flat core bar of being made up of male joint (1), intermediate bar (2), female joint (3).
3, T shaped blade auger stem according to claim 1 and 2 is characterized in that: described male joint (1) is screw connected or the latch interconnection system with the connected mode of female joint (3).
4, T shaped blade auger stem according to claim 3 is characterized in that: described male joint (1) and the two ends of female joint (3) difference friction welding in intermediate bar (2).
5, T shaped blade auger stem according to claim 3 is characterized in that: the outside dimension unanimity of the outer flat core bar that described male joint (1), intermediate bar (2), female joint (3) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200324683U CN201401134Y (en) | 2009-04-03 | 2009-04-03 | Spiral drilling rod with T-type leaf blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200324683U CN201401134Y (en) | 2009-04-03 | 2009-04-03 | Spiral drilling rod with T-type leaf blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401134Y true CN201401134Y (en) | 2010-02-10 |
Family
ID=41660934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200324683U Expired - Lifetime CN201401134Y (en) | 2009-04-03 | 2009-04-03 | Spiral drilling rod with T-type leaf blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401134Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653111A (en) * | 2015-01-29 | 2015-05-27 | 同济大学 | Self-balancing multi-spiral ground drilling robot |
-
2009
- 2009-04-03 CN CN2009200324683U patent/CN201401134Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653111A (en) * | 2015-01-29 | 2015-05-27 | 同济大学 | Self-balancing multi-spiral ground drilling robot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201401134Y (en) | Spiral drilling rod with T-type leaf blade | |
| CN106894771A (en) | A kind of big pitch abnormal shape auger stem | |
| CN204299487U (en) | Series inner via hole transfers screen casing drilling rod | |
| CN101514609A (en) | Spiral drill pipe with T-shaped blade | |
| CN202451077U (en) | Efficient spiral alloy drill rod | |
| CN104213853A (en) | Drilling interval variable-diameter spiral drill pipe for soft-hard composite coal seam | |
| CN201448070U (en) | Wide blade clamping helix drilling rod | |
| CN204252393U (en) | Corrugated steel web-compound section, concrete filled steel tube edge of a wing cross section column | |
| CN204163092U (en) | Dewatering well bamboo cage chimney filter | |
| CN207776225U (en) | A kind of hollowed-block masonry structure with high shear behavior | |
| CN207499819U (en) | A kind of screw type drilling rod | |
| CN203476221U (en) | Hexagonal drill rod | |
| CN201401135Y (en) | Hole-expanding type tapered spiral drilling rod | |
| CN201258587Y (en) | Reducing pad for tubular scaffold fastener | |
| CN202249957U (en) | Coal powder spiral anti-blocking device | |
| CN202370450U (en) | Spiral drill rod | |
| CN201885244U (en) | Anticorrosion dustproof energy-saving chimney bore helical line | |
| CN202017459U (en) | Drill rod with double powder discharging channels | |
| CN101514610A (en) | Holding spiral drill pipe with wide blade | |
| CN201460766U (en) | Spiral drill pipe | |
| CN203978308U (en) | Efficient Three-edged drill stem | |
| CN103615284B (en) | The hole-sealing technology of drilling rod formula gas hole packer | |
| CN203188939U (en) | Hexagonal geological spiral drill stem device quick to connect and for coal mine tunnel drilling | |
| CN201349942Y (en) | Filled metal curtain rod | |
| CN201502517U (en) | Zero-airlock gas-liquid multiphase deep-well pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XI'AN RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY Free format text: FORMER NAME: CHINA COAL TECHNOLOGY + ENGINEERING GROUP XI'AN RESEARCH INSTITUTE Owner name: CHINA COAL TECHNOLOGY + ENGINEERING GROUP XI'AN RE Free format text: FORMER NAME: SIAN BRANCH OF CHINA COAL RESEARCH INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee after: CCTEG Xi'an Research Institute Address before: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee before: Xi'an Research Institute Of China Coal Research Institute Address after: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee after: Xi'an Research Institute Of China Coal Research Institute Address before: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee before: Xi'an Branch of China Coal Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100210 |