CN202325302U - Drill rod special for wind power and mechanical cooperated slag discharge - Google Patents
Drill rod special for wind power and mechanical cooperated slag discharge Download PDFInfo
- Publication number
- CN202325302U CN202325302U CN2011204945280U CN201120494528U CN202325302U CN 202325302 U CN202325302 U CN 202325302U CN 2011204945280 U CN2011204945280 U CN 2011204945280U CN 201120494528 U CN201120494528 U CN 201120494528U CN 202325302 U CN202325302 U CN 202325302U
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- rod
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- rod body
- slag discharge
- drill rod
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Abstract
The utility model discloses a drill rod special for wind power and mechanical cooperated slag discharge, which comprises a hollow cylindrical rod body. Two ends of the rod body are respectively provided with a convex connector and a concave connector. The circumferential surface of the rod body is at least provided with one protruding edge strip in the spiral shape in the axial direction, and the protruding edge strip and the rod body are of integral structure. Aiming at the accidents of soft coal layer protruding in coal mines, large gas occurrence, large crustal stress, orifice spraying, hole blocking, hole sinking, crown drilling, drill embracing, hole shrinkage and the like, the drill rod overcomes the shortcomings of the existing drill rod, improves slag discharge assistance functions of the rod body, improves drilling efficiency, improves hole drilling efficiency construction depth and porosity rate, effectively reduces hole inside accident rate, promotes safe production and is easy to popularize and apply.
Description
Technical field
The utility model belongs to the Safety of Coal Mine Production technical field, is specifically related to a kind of wind-force and the special-purpose drilling rod of the collaborative deslagging of machinery.
Background technology
At present; Big to coal seam hover ground stress; Gas emission is big, and the extraction drilling construction that creeps into difficulty mainly adopts polished rod, triangular drilling rod, double helix cutting drilling rod, helps deslagging to prevent the rib drilling rod etc. of bit freezing abrasion-proof drill rod, winding steel, and all there is certain defective in above-mentioned each product.The drill finish bar when running into accident such as the hole of collapsing, plug-hole, shrinkage cavity, owing to self do not possess the accident ability, is easy to cause jumping chisel to bring out accidents such as spray orifice, gas combustion in drilling process.Triangular drilling rod subject matter is that tool joint can not be taked the welding procedure that rubs, and does not reach the torsional strength requirement.After drilling accident takes place, be easy to drilling rod is twisted off from the joint.The drilling construction degree of depth reaches designing requirement.The trough drilling rod is on the machine pipe, to process the matrix helicla flute, has reduced pipe thickness, and intensity reduces, and causes stress to concentrate, and very easily ruptures and causes the brill accident of losing.Help the rib drilling rod result of use of anti-bit freezing abrasion-proof drill rod of deslagging and winding steel obviously to improve, but the deslagging face that exists in the rotary slagging coutrol direction all receive the process for machining and manufacturing restriction and can't form the vertical row top of the slag.In creeping into tapping process, the discharging boosting power of boring mud is difficult to reach optimum efficiency.The rib drilling rod of winding steel also exists the institute steel band that twines and basic bar poor adhesive force, use a period of time after, because of the powerful thrust of wearing and tearing and clamper unit head, be prone to cause situation such as come off, reduce its application life, the increase user cost.
The utility model content
The utility model is in order to solve weak point of the prior art, provides that a kind of torsional strength is high, deslagging is effective, drilling efficiency is high, the wind-force of long service life and the special-purpose drilling rod of the collaborative deslagging of machinery.
For solving the problems of the technologies described above; The utility model adopts following technical scheme: wind-force and the special-purpose drilling rod of the collaborative deslagging of machinery; The cylindric body of rod that comprises hollow; Body of rod two ends are respectively equipped with protruding connector and recessed connector, and said body of rod circumferential surface axially is provided with a spiral fin bar at least, and the fin bar and the body of rod are structure as a whole.
Two side views of the cross section of said fin bar are respectively parabolic segment and straightway, and this straightway is perpendicular to the circumferential surface of the body of rod.
Said fin bar width is 10mm～36mm, and fin bar height is at 1mm～6.5mm, and the pitch of fin bar is between 50mm～90mm.
Adopt technique scheme, the fin bar and the body of rod are structure as a whole, i.e. fin strip adoption special equipment and instrument milling on the steel pipe of same heavy wall forms, and fin and body of rod material are identical, do not have the adhesion problem, never drop-off, long service life.Special fin bar configuration design has further improved the thrust of this drilling rod machinery deslagging, and straightway one side improves to revolve and digs effect for revolving the face of digging, and parabolic segment one side is the deslagging face that facings the wind, and has effectively reduced the resistance of wind power slag-discharging, raising deslagging effect.Through preliminary test, the comprehensive deslagging ability of the utility model improves more than 30% on existing basis, and outstanding soft seam drilling depth can reach more than the 200m, and the consumption of drilling rod can practice thrift 40%, economic benefit and obvious social benefit.
The utility model is directed against the outstanding weak seam in colliery, gas emission is big, geostatic stress is big, is prone to take place spray orifice, plug-hole, the hole of collapsing, crown drill, embraces accidents such as brill, shrinkage cavity, the defective that the existing drilling rod of improvement exists; Improve the deslagging function that helps of drilling rod self; Improve drilling efficiency, improve the drilling construction degree of depth and become porosity, effectively reduce the drilling accident rate; Facilitate safety in production, be easy to apply.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A profile of Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2; Wind-force of the utility model and the special-purpose drilling rod of the collaborative deslagging of machinery; Comprise that the middle part has the cylindric body of rod 1 of cavity 5; The body of rod 1 two ends are respectively equipped with protruding connector 2 and recessed connector 3, and the body of rod 1 circumferential surface is axially arranged with a spiral fin bar 4, and fin bar 4 is structure as a whole with the body of rod 1.Two side views of the cross section of fin bar 4 are respectively parabolic segment 6 and straightway 7, and this straightway 7 is perpendicular to the circumferential surface of the body of rod 1.Fin bar 4 width are 10mm～36mm, and fin bar 4 height are at 1mm～6.5mm, and the pitch of fin bar 4 is between 50mm～90mm.
The utility model is broken industrial practice; Customization heavy wall R780 drilling rod tubing; Utilize the special milling equipment and the instrument of Design and Machining voluntarily, according to design and user's requirement, the redundance of thickening is removed in disposable processing; Form the body of rod 1 and the body of rod 1 with the incorporate helical rib bar 4 of material, thoroughly solved winding steel and machine bar bond strength low, be prone to the problem of coming off.Straightway 7 one sides of fin bar 4 are for revolving the face of digging; Be 90 ° of right angles with the body of rod 1 circumferential surface, reach preferably to help to revolve and dig effect, parabolic segment 6 one sides are the deslagging face that facings the wind; Reduced the resistance of wind power slag-discharging; Drilling cuttings to being deposited at the bottom of the hole has agitaion, and drilling cuttings evenly is suspended in the hole, is convenient to wind-force and it is blown drains into outside the hole.
Certainly, fin bar 4 can laterally arrange two or more, and protruding connector 2 can adopt all mining drill knock-off joint national standards such as taper thread, gas thread with recessed connector 3.With up conversion all within the protection domain of the utility model.
Claims (3)
1. wind-force is worked in coordination with the special-purpose drilling rod of deslagging with machinery; The cylindric body of rod that comprises hollow; Body of rod two ends are respectively equipped with protruding connector and recessed connector, it is characterized in that: said body of rod circumferential surface axially is provided with a spiral fin bar at least, and the fin bar and the body of rod are structure as a whole.
2. wind-force according to claim 1 and the special-purpose drilling rod of the collaborative deslagging of machinery, it is characterized in that: two side views of the cross section of said fin bar are respectively parabolic segment and straightway, and this straightway is perpendicular to the circumferential surface of the body of rod.
3. wind-force according to claim 1 and 2 and the special-purpose drilling rod of the collaborative deslagging of machinery, it is characterized in that: said fin bar width is 10mm～36mm, and fin bar height is at 1mm～6.5mm, and the pitch of fin bar is between 50mm～90mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204945280U CN202325302U (en) | 2011-12-02 | 2011-12-02 | Drill rod special for wind power and mechanical cooperated slag discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204945280U CN202325302U (en) | 2011-12-02 | 2011-12-02 | Drill rod special for wind power and mechanical cooperated slag discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325302U true CN202325302U (en) | 2012-07-11 |
Family
ID=46437284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204945280U Expired - Fee Related CN202325302U (en) | 2011-12-02 | 2011-12-02 | Drill rod special for wind power and mechanical cooperated slag discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325302U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839927A (en) * | 2012-10-12 | 2012-12-26 | 重庆大学 | High-pressure water seal dual-power auger stem |
| CN108412436A (en) * | 2018-03-16 | 2018-08-17 | 河北工程大学 | A kind of geologic drilling rod |
| CN114718464A (en) * | 2022-03-22 | 2022-07-08 | 中国矿业大学 | Primary hole forming device and method for ground stress test |
-
2011
- 2011-12-02 CN CN2011204945280U patent/CN202325302U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839927A (en) * | 2012-10-12 | 2012-12-26 | 重庆大学 | High-pressure water seal dual-power auger stem |
| CN102839927B (en) * | 2012-10-12 | 2015-07-08 | 重庆大学 | High-pressure water seal dual-power auger stem |
| CN108412436A (en) * | 2018-03-16 | 2018-08-17 | 河北工程大学 | A kind of geologic drilling rod |
| CN114718464A (en) * | 2022-03-22 | 2022-07-08 | 中国矿业大学 | Primary hole forming device and method for ground stress test |
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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: 20120711 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |