CN202370450U - Spiral drill rod - Google Patents
Spiral drill rod Download PDFInfo
- Publication number
- CN202370450U CN202370450U CN2011205530646U CN201120553064U CN202370450U CN 202370450 U CN202370450 U CN 202370450U CN 2011205530646 U CN2011205530646 U CN 2011205530646U CN 201120553064 U CN201120553064 U CN 201120553064U CN 202370450 U CN202370450 U CN 202370450U
- Authority
- CN
- China
- Prior art keywords
- spiral
- drill rod
- blades
- blade
- drilling rod
- 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
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model belongs to the technical field of coal machinery, discloses a tool used for drilling holes in a coal bed and particularly relates to a spiral drill rod. The spiral drill rod comprises a drill rod body and blades, wherein the blades are combined on the outer wall of the drill rod body in a spiral shape, the cross section of the blades is in a trapezoidal shape, the blades are multi-head spiral blades with consistent spiral directions and the same spiral pitch, and the lower bottom edge of the trapezoid of the blades is in spiral combination with the surface of the spiral drill rod body. The spiral drill rod has the advantages that the chip discharge and slag discharge speed is high, the digging efficiency is high, the combination force of the blades and the drill rod body is strong, the digging resistance is small, the service life of the drill rod is effectively prolonged, and the digging cost is reduced.
Description
Technical field
The utility model belongs to the technical field of coal mine machinery, relates to a kind of instrument that boring is used in the coal seam, particularly a kind of auger stem.
Background technology
In the Coal Production process, in order to prevent coal and gas burst accident and water leak accident, before driving, need in the coal seam, punch discharges the gas in the coal seam, to eliminate coal seam stress or to have verified no water layer through boring.The shape of cross section of the helical blade that connects on the used auger stem of punching on the colliery at present is rectangular shape; Receive resistance big during driving, the loss of drilling rod is fast, and the bond strength of helical blade and drilling rod body is relatively poor relatively; Thereby influence the driving progress, cause excavation cost higher.
Summary of the invention
The purpose of the utility model is to provide a kind of resistance that both effectively reduced to tunnel, and improves the auger stem of the bond strength of helical blade and drilling rod body again.
The utility model adopts such technical scheme to realize, a kind of auger stem, and comprise that drilling rod body and curl are combined in the blade on the drilling rod body outer wall, is characterized in that: the shape of cross section of blade is trapezoidal.
Said blade is the multi-head spiral blade that hand of spiral unanimity and pitch equate.
Said leaf cross-section is designed to trapezoidal shape, can reduce to tunnel resistance, improves deslagging speed.
In addition, said blade integral is combined on this external surface of drilling rod; The wide end of blade,, promptly trapezoidal bottom combines with drilling rod body surface spiral, is extended to the other end of drilling rod body from an end; The trapezoidal wide end, combine with drilling rod, improved the bond strength of blade and drilling rod body.
It is trapezoidal that the utility model is designed to shape with leaf cross-section, makes chip removal, deslagging speed fast, and drivage efficiency is high; And trapezoid blade and drilling rod body bond strength are high, and the driving resistance is little, have prolonged the application life of drilling rod, have reduced excavation cost.
Description of drawings
Fig. 1 is the utility model overall structure sketch map;
Fig. 2 the utility model blade integral structural representation
Fig. 3 is the A-A sectional view of Fig. 2, i.e. leaf cross-section sketch map.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified, but the utility model not only is confined to this.
Embodiment, a kind of auger stem comprises drilling rod 1 and blade 2; Blade 2 curls are welded on this external surface of drilling rod, are extended to the other end of drilling rod body from an end; This blade 2 is the multi-head spiral blade that hand of spiral unanimity and pitch equate, and shape of cross section is trapezoidal.
Claims (4)
1. auger stem, comprise that drilling rod body (1) and curl are combined in the blade (2) on drilling rod body (1) outer wall, is characterized in that: said blade (2) shape of cross section is trapezoidal.
2. a kind of auger stem as claimed in claim 1 is characterized in that: blade (2) integral body is combined on this external surface of drilling rod (1); The wide end of blade (2),, promptly trapezoidal bottom combines with drilling rod (1) body surface spiral, is extended to the other end of drilling rod (1) body from an end.
3. a kind of auger stem as claimed in claim 1 is characterized in that: the multi-head spiral blade that blade (2) is consistent for the hand of spiral and pitch equates.
4. like claim 1 or 2 or 3 described a kind of auger stems, it is characterized in that: blade (2) integral solder is on this external surface of drilling rod (1); The wide end of blade (2),, promptly trapezoidal bottom combines with drilling rod (1) body surface spiral, is extended to the other end of drilling rod (1) body from an end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205530646U CN202370450U (en) | 2011-12-27 | 2011-12-27 | Spiral drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205530646U CN202370450U (en) | 2011-12-27 | 2011-12-27 | Spiral drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370450U true CN202370450U (en) | 2012-08-08 |
Family
ID=46594157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205530646U Expired - Fee Related CN202370450U (en) | 2011-12-27 | 2011-12-27 | Spiral drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370450U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996081A (en) * | 2012-11-27 | 2013-03-27 | 恒天九五重工有限公司 | Drill device of drilling machine |
| CN110230475A (en) * | 2019-07-09 | 2019-09-13 | 煤炭科学技术研究院有限公司 | A kind of efficient chip removal auger stem |
| CN110306936A (en) * | 2019-07-09 | 2019-10-08 | 煤炭科学技术研究院有限公司 | A kind of drilling cuttings method special project drilling machine |
-
2011
- 2011-12-27 CN CN2011205530646U patent/CN202370450U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996081A (en) * | 2012-11-27 | 2013-03-27 | 恒天九五重工有限公司 | Drill device of drilling machine |
| CN110230475A (en) * | 2019-07-09 | 2019-09-13 | 煤炭科学技术研究院有限公司 | A kind of efficient chip removal auger stem |
| CN110306936A (en) * | 2019-07-09 | 2019-10-08 | 煤炭科学技术研究院有限公司 | A kind of drilling cuttings method special project drilling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102787812B (en) | A kind of monolithic many ribs drilling rod | |
| CN202370450U (en) | Spiral drill rod | |
| CN201068740Y (en) | Conical helical rock drill head | |
| CN104018783A (en) | High-drilling-speed PDC drill bit | |
| CN201460766U (en) | Spiral drill pipe | |
| CN203499591U (en) | Thrust slag discharge spiral drilling rod for coal mine tunnel drilling | |
| CN204476305U (en) | A kind of roadway support anchoring Rhizoma Sparganii three spiral thrust deslagging drilling rod | |
| CN202249782U (en) | Stone-crushing drill bit | |
| CN201865583U (en) | High-efficiency three-scraper drill bit | |
| CN203114188U (en) | Engineering driller drill stem | |
| CN205477414U (en) | Double helix of nai pressurization threaded connection formula drilling rod | |
| CN207110977U (en) | A kind of diamond compact steel body type arc wing drill bit | |
| CN202325302U (en) | Drill rod special for wind power and mechanical cooperated slag discharge | |
| CN205858187U (en) | A kind of colliery is with quick deslagging augers | |
| CN201546624U (en) | Anti-scour special drill bit | |
| CN101481999B (en) | Drilling rod with asymmetric special-shaped cross section | |
| CN204511309U (en) | Carbide drill tooth | |
| CN202401998U (en) | High-efficiency drilling and reaming milling cone | |
| CN203188939U (en) | Hexagonal geological spiral drill stem device quick to connect and for coal mine tunnel drilling | |
| CN107939295B (en) | Hydraulic integrated drill carriage of rock drilling machine | |
| CN202417317U (en) | Double-layer coring bit used for coal mine | |
| CN202348120U (en) | Three-wing bit for buried pipe ground source heat pump well drilling | |
| CN204024502U (en) | A kind of quick inserting stacks | |
| CN204060537U (en) | Row's powder drilling rod in dry type | |
| CN203161098U (en) | Pawl type extraction drill rod |
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: 20120808 Termination date: 20151227 |
|
| EXPY | Termination of patent right or utility model |