CN202047758U - Six-lobed gas drainage drill rod - Google Patents
Six-lobed gas drainage drill rod Download PDFInfo
- Publication number
- CN202047758U CN202047758U CN2011201224745U CN201120122474U CN202047758U CN 202047758 U CN202047758 U CN 202047758U CN 2011201224745 U CN2011201224745 U CN 2011201224745U CN 201120122474 U CN201120122474 U CN 201120122474U CN 202047758 U CN202047758 U CN 202047758U
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- drill rod
- drilling rod
- hole
- arc
- gas drainage
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Abstract
The utility model relates to a six-lobed gas drainage drill rod, which includes a drill rod and a through hole formed in a central position of the drill rod, wherein the drill rod is a regular triangle metal rod; and the metal rod has a cross section that each angle is arc; a convex head and a concave head mutually matched with edges of the drill rod are arranged at the two ends of the drill rod respectively; three reinforcing edge angles are uniformly distributed on the convex head and the concave head respectively; the edge of each reinforcing edge angle is arc; external tapered threads are arranged on the convex head; interior tapered threads mutually matched with the exterior tapered threads are arranged on the concave head; central through holes communicated with the through hole on the drill rod are formed in the central positions of the convex head and the concave head; the length of the arc of the edge of each reinforcing edge angle is smaller than that of the arc of each angle of the cross section of the drill rod; and the pore diameter of the central through-hole is smaller than that of the through hole on the drill rod. The strength becomes higher if the diameter of the threads at the two ends is enlarged, and the entire drill rod is uniformly stressed after being connected, thereby achieving the effects of excellent linear drill, solidness and durability.
Description
Technical field
The utility model relates to a kind of colliery drilling rod, is specifically related to a kind of gas drainage under suction drilling rod, particularly a kind of six flower shape gas drainage under suction drilling rods.
Background technology
Gas burst accident takes place again and again, and its consequence that causes is appalling, solves the gas burst accident most important thing of Safety of Coal Mine Production especially at present, and the key that addresses this problem at first is the problem that gas drainage under suction is carried out in boring.The conventional drill that occurs on the market mainly contains following two kinds:
1, round drill rod, its advantage are that manufacturing process is simple, and processing dimension is controlled easily, and error is little between the appearance and size, whole good stress performance in drilling process, and its counter-bending ability is strong; Its shortcoming is, because the profile decision of whole garden, its edge, in its drilling process, the deslagging poor effect is crept into simultaneously even send under the water condition, and the deslagging effect is still not obvious, drilling rod is stuck easily, and operating efficiency is low, waste staff's time and efforts.
2, auger stem, its advantage be, compares its deslagging effect with round drill rod and obviously improve, and drilling efficiency improves greatly.Shortcoming is, complex contour, and processing technology is quite complicated, and drilling rod self intensity is low, and the life-span is short, flexible distortion or fracture, the cargo handling process complexity has a strong impact on the lifting of its operating efficiency.
China's utility model patent discloses the patent No. and has been: 200720306879.8 circular arc fin gas drainage under suction drilling rod, and the drilling rod that its advantage is traditional relatively is comparatively obvious, and deslagging and drilling effect are obvious, and whole work efficiency has significantly raising.But, still seek at the needs improvements, its three triangle arris midpoint slightly really are defective, the shape of its triangle inscribed circle as can be seen, the weakest place of three sides of a triangle midpoint politics global shape, the weak link of its thread groove just, under the situation that the rig torque magnitude changes, error appears in its final position that is threaded, and the triangular butt joint is uneven, the screwed part discontinuity causes fracture easily.
Summary of the invention
At the deficiencies in the prior art, the utility model provide a kind of simple in structure, operation is easy to loading and unloading, self intensity height, processing technology is simple, cost is low, deslagging and drilling effect obviously, six flower shape gas drainage under suction drilling rods of high efficiency.
The technical solution of the utility model is achieved in that a kind of six flower shape gas drainage under suction drilling rods, comprise drilling rod, be opened in the through hole of drilling rod center, described drilling rod is the equilateral triangle Metallic rod that each angle of cross section is arc, be respectively arranged with and identical mutually plush copper and the recessed head in the edge of drilling rod at the two ends of drilling rod, be evenly distributed with the reinforcement corner angle on plush copper and the recessed head.
Reinforcement corner angle on described plush copper and the recessed head are 3, and each edge of strengthening corner angle is arc.
Described plush copper is provided with outer cone thread, and recessed head is provided with the inside tapered thread that cooperatively interacts with outer cone thread.
The center of described plush copper and recessed head all offers the central through hole that is connected with through hole on the drilling rod.
The arc length at the edge of described reinforcement corner angle is less than the arc length at each angle of drilling rod cross section.
The aperture of described central through hole is less than the aperture of the through hole on the drilling rod.
The utlity model has following good effect: this product drilling rod is the equilateral triangle Metallic rod that each angle of cross section is arc, be respectively arranged with and identical mutually plush copper and the recessed head in the edge of drilling rod at the two ends of drilling rod, be evenly distributed with the reinforcement corner angle on plush copper and the recessed head, strengthen being provided with of corner angle and guaranteed that outer cone thread is connected the intensity between back drilling rod and the drilling rod with inside tapered thread, drilling rod is under the protection of recessed head that is provided with the reinforcement corner angle and plush copper, self intensity to improving, distortion or phenomenon of rupture can not appear when creeping into work; The edge of strengthening corner angle in addition is set to arc, and is corresponding with the arc at each angle of the cross section of drilling rod, conveniently creeps into the raising of process.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional view of the utility model Fig. 1.
Fig. 3 is the sectional drawing of the utility model Fig. 2 along the A-A place.
Fig. 4 is the sectional drawing of the utility model Fig. 2 along the B-B place.
Fig. 5 is the zoomed-in view at C place among the utility model Fig. 2.
Fig. 6 is the zoomed-in view at D place among the utility model Fig. 2.
The specific embodiment
Shown in Fig. 1,2,3,4,5,6, a kind of six flower shape gas drainage under suction drilling rods, comprise drilling rod 2, be opened in the through hole of drilling rod 2 centers, described drilling rod 2 is the equilateral triangle Metallic rod of arc for each angle of cross section, be respectively arranged with plush copper 1 that the edge with drilling rod 2 coincide mutually and recessed 3 at the two ends of drilling rod 2, be evenly distributed with on plush copper 1 and recessed 3 and strengthen corner angle 4.Reinforcement corner angle 4 on described plush copper 1 and recessed 3 are 3, and each edge of strengthening corner angle 4 is arc.Described plush copper 1 is provided with outer cone thread 6, and recessed 3 is provided with the inside tapered thread 7 that cooperatively interacts with outer cone thread 6.Described plush copper 1 and recessed 's 3 center all offers the central through hole 5 that is connected with through hole on the drilling rod 2.The arc length at the edge of described reinforcement corner angle 4 is less than the arc length at each angle of drilling rod 2 cross sections.The aperture of described central through hole 5 is less than the aperture of the through hole on the drilling rod 2.
This product has still continued round drill rod, its processing technology is simple, drilling effect is obvious, self intensity height, thereby to can lower relative with consumption of requirement of material itself just now, determined the lower advantage of its cost, as comparing with circular arc fin gas drainage under suction drilling rod, the two ends diameter of thread strengthens, and intensity is higher, it is whole stressed even that this brill connects the back, thereby reached good, the robust effect of straight line drilling effect.
Claims (6)
1. colored shape gas drainage under suction drilling rod, comprise drilling rod (2), be opened in the through hole of drilling rod (2) center, it is characterized in that: described drilling rod (2) is the equilateral triangle Metallic rod of arc for each angle of cross section, be respectively arranged with plush copper (1) and the recessed head (3) identical mutually at the two ends of drilling rod (2), be evenly distributed with on plush copper (1) and the recessed head (3) and strengthen corner angle (4) with the edge of drilling rod (2).
2. six flower shape gas drainage under suction drilling rods according to claim 1, it is characterized in that: the reinforcement corner angle (4) on described plush copper (1) and the recessed head (3) are 3, and each edge of strengthening corner angle (4) is arc.
3. six flower shape gas drainage under suction drilling rods according to claim 1, it is characterized in that: described plush copper (1) is provided with outer cone thread (6), and recessed head (3) is provided with the inside tapered thread (7) that cooperatively interacts with outer cone thread (6).
4. six flower shape gas drainage under suction drilling rods according to claim 1 is characterized in that: the center of described plush copper (1) and recessed (3) all offers the central through hole (5) that is connected with through hole on the drilling rod (2).
5. six flower shape gas drainage under suction drilling rods according to claim 2, it is characterized in that: the arc length at the edge of described reinforcement corner angle (4) is less than the arc length at each angle of drilling rod (2) cross section.
6. six flower shape gas drainage under suction drilling rods according to claim 4, it is characterized in that: the aperture of described central through hole (5) is less than the aperture of the through hole on the drilling rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201224745U CN202047758U (en) | 2011-04-25 | 2011-04-25 | Six-lobed gas drainage drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201224745U CN202047758U (en) | 2011-04-25 | 2011-04-25 | Six-lobed gas drainage drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047758U true CN202047758U (en) | 2011-11-23 |
Family
ID=44988069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201224745U Expired - Lifetime CN202047758U (en) | 2011-04-25 | 2011-04-25 | Six-lobed gas drainage drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202047758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603607A (en) * | 2013-11-19 | 2014-02-26 | 无锡中地地质装备有限公司 | Adjustable-length drill pipe structure |
| CN105545218A (en) * | 2016-01-29 | 2016-05-04 | 河南理工大学 | Multi-blade inwards-concave open-type bionic drag-reduction hole-protection drill rod for soft coal seam drilling and drilling method |
-
2011
- 2011-04-25 CN CN2011201224745U patent/CN202047758U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603607A (en) * | 2013-11-19 | 2014-02-26 | 无锡中地地质装备有限公司 | Adjustable-length drill pipe structure |
| CN105545218A (en) * | 2016-01-29 | 2016-05-04 | 河南理工大学 | Multi-blade inwards-concave open-type bionic drag-reduction hole-protection drill rod for soft coal seam drilling and drilling method |
| CN105545218B (en) * | 2016-01-29 | 2018-05-22 | 河南理工大学 | The open bionical drop resistance guard aperture drilling rod of soft seam drilling multiple wing indent and drilling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |