CN203547581U - Groove spiral pipe drill stem - Google Patents
Groove spiral pipe drill stem Download PDFInfo
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- CN203547581U CN203547581U CN201320513582.4U CN201320513582U CN203547581U CN 203547581 U CN203547581 U CN 203547581U CN 201320513582 U CN201320513582 U CN 201320513582U CN 203547581 U CN203547581 U CN 203547581U
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- joint
- male
- female joint
- rod
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Abstract
The utility model discloses a groove spiral pipe drill stem which structurally comprises a stem body, a male joint and a female joint. The outer circumferential surface of the stem body is uniformly provided with spiral grooves. Both ends of the stem body are connected with the male joint and the female joint respectively. The male joint and the female joint are matched step-shaped taper joints. The center portions of the male joint and the female joint are provided with ventilation holes respectively. The outer circumferential surface of the end of the male joint is provided with male threads. The inner circumferential surface of the female joint is provided with female threads matching with the male threads. The groove spiral pipe drill stem has the advantages that the groove spiral pipe drill stem omits additional accessories on the basis of raw materials and spiral grooves are processed on the outer circumferential surface of the stem body, so that spiral structure damaging or dregs removing blocking cannot appear due to the fact that the spiral grooves and the stem body are of an integrated structure.
Description
Technical field
The utility model relates to a kind of engineering mining equipment technical field, specifically, is a kind of cutting helix tube drilling rod.
Background technology
According to exploration and the summary of domestic coal mine roadway construction, for now, colliery is geology round bur bar, the geology auger stems of adopting in gas drainage under suction process more.Geology round bur bar is because market life period is longer, practicality is a kind of drilling rod comparatively widely, but undesirable because of its deslagging effect, and easily causes bit freezing, flexural strength poor and creep into the phenomenons such as inefficacy, underground construction and operation are brought to serious puzzlement, directly cause immeasurable economic loss.Geology auger stem is to improve on the basis of geology round bur bar, on the surface of geology round bur bar, be wound around welding helical blade structure, solved to a certain extent the disadvantageous problem of geology round bur bar deslagging, but it is virtually to make rig whole bear moment of torsion excessive, even there is the phenomenons such as overburden operation, and its helical surface cannot reach requirement of strength on the basis that guarantees its toughness, usually cause helical blade wearing and tearing, the generation of fracture and the event such as come off, greatly reduce drilling efficiency and increase difficulty of construction, and because of larger to the wear extent of drilling rod helical blade in tapping process, be easy to make drilling rod, in drilling process, blade is caused to breakage, breaking due to drilling rod helical blade when serious, cause deslagging not smooth, even can twist off drilling rod connector, cause hole wall collapse that engineering cannot be carried out.This type of phenomenon has seriously hindered site operation and programming, causes immeasurable economic loss.
Utility model content
In order to overcome above technical problem, the utility model provides one to prevent from creeping into stifled slag, improves and creeps into operating efficiency, effectively prevents the cutting helix tube drilling rod of the phenomenons such as the drill rod breaking that causes because of the impaired distortion of helical blade.
The utility model adopts following technical scheme to realize: a kind of cutting helix tube drilling rod, structure comprises the body of rod, male joint and female joint, described body of rod external peripheral surface is evenly provided with helicla flute, described body of rod two ends connect respectively male joint and female joint, described male joint and female joint are the ladder step tapering connector complementing one another, the center of described male joint and female joint is respectively equipped with gravity vent, and described male joint end external peripheral surface is provided with male thread; Described female joint inner circumferential surface is provided with the box thread complementing one another with male thread.
The beneficial effect that the utility model produces is, the utility model is on raw material basis, not add other accessories, at the outer round surface of its body of rod own, process a kind of helicla flute, so because the phenomenon that is structure as a whole and there will not be spiral breakage, block deslagging with the body of rod.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, be elaborated:
Fig. 1 is the utility model structure chart
Fig. 2 is the sectional view of the utility model drilling rod
In figure, 1, male joint, 2, female joint, 3, box thread, 4, the body of rod, 5, helicla flute, 6, male thread, 7, gravity vent
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of cutting helix tube drilling rod, structure comprises the body of rod, male joint and female joint, described body of rod external peripheral surface is evenly provided with helicla flute, described body of rod two ends connect respectively male joint and female joint, described male joint and female joint are the ladder step tapering connector complementing one another, and the center of described male joint and female joint is respectively equipped with gravity vent, and described male joint end external peripheral surface is provided with male thread; Described female joint inner circumferential surface is provided with the box thread complementing one another with male thread;
Described male thread and box thread also can be designed to the connecting-piece structure that other can be pegged graft arbitrarily fast;
The described body of rod is to wait wall thickness, double-strength pipe body structure, and isometrical with male and female joint, and overall tensile strength is high, moment of torsion is large, is widely used in creeping into of deep well drilling and soft seam;
Between the described body of rod and male and female joint, pass through interference fit high-speed rotation friction butt welding, guaranteed the torsional strenght of drilling rod, it is far longer than and wears pin weld strength, the in the situation that of equal material, through obtaining moment of torsion after high temperature friction welding, realize and maximizing, can be applicable to operation and the degree of depth under the ore deposit of high-torque drilling and creep into.
It is isometrical that drilling rod adopts the rear drilling rod outer round surface of high temperature friction welding, in its Surface Machining, has trapezoidal not contour helicla flute, and wherein male joint direction groove depth is degree of depth groove partially, is conducive to drilling rod deslagging; Deflection female joint direction is shallow degree groove, prevents from occurring that deslagging has some setbacks, the imagination of stifled slag in rod boring process; Described trapezoidal not contour helicla flute is multi-head spiral groove more than two, can be also low moment of torsion minor diameter single head helicla flute, increases deslagging speed, has greatly improved rate of penetration and operating efficiency.
Drilling rod can interconnecting by one and above quantity, female joint place is connected with rig is supporting, male joint place and drill bit be supporting is connected use, can be according to drilling depth, the drilling rod of the suitable measured length of the selecting factors such as drilling depth, in drilling process, drilling rod vent locations place can ventilate or the dielectric object such as water, guarantees that the discharge of boring mud is smooth and easy. and the trapezoidal not contour helicla flute of drilling rod can be carried rapidly slag by creeping into, and has greatly improved production operation speed.This drilling rod is through verification the verifying results is good repeatedly, and utility ratio is wide, economic and practical, can be according to actual job environmental selection different size model, for gas drainage under suction and driving provide good using value.
The utility model is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, within all falling into protection domain of the present utility model.
Technology, shape, structure part that the utility model is not described in detail are known technology.
Claims (1)
1. a cutting helix tube drilling rod, structure comprises the body of rod, male joint and female joint, it is characterized in that, described body of rod external peripheral surface is evenly provided with helicla flute, described body of rod two ends connect respectively male joint and female joint, described male joint and female joint are the ladder step tapering connector complementing one another, and the center of described male joint and female joint is respectively equipped with gravity vent, and described male joint end external peripheral surface is provided with male thread; Described female joint inner circumferential surface is provided with the box thread complementing one another with male thread, the described body of rod is for waiting wall thickness tube body structure, between the described body of rod and male and female joint, pass through interference fit high-speed rotation friction butt welding, described helicla flute is trapezoidal not contour helicla flute, male joint direction is degree of depth groove partially, and female joint direction is shallow degree groove partially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513582.4U CN203547581U (en) | 2013-08-22 | 2013-08-22 | Groove spiral pipe drill stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513582.4U CN203547581U (en) | 2013-08-22 | 2013-08-22 | Groove spiral pipe drill stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547581U true CN203547581U (en) | 2014-04-16 |
Family
ID=50465710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320513582.4U Expired - Fee Related CN203547581U (en) | 2013-08-22 | 2013-08-22 | Groove spiral pipe drill stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547581U (en) |
-
2013
- 2013-08-22 CN CN201320513582.4U patent/CN203547581U/en not_active Expired - Fee Related
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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: 20140416 Termination date: 20140822 |
|
| EXPY | Termination of patent right or utility model |