CN2737928Y - Double-screw sawtooth wear resisting drilling rod - Google Patents
Double-screw sawtooth wear resisting drilling rod Download PDFInfo
- Publication number
- CN2737928Y CN2737928Y CN 200420061615 CN200420061615U CN2737928Y CN 2737928 Y CN2737928 Y CN 2737928Y CN 200420061615 CN200420061615 CN 200420061615 CN 200420061615 U CN200420061615 U CN 200420061615U CN 2737928 Y CN2737928 Y CN 2737928Y
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- CN
- China
- Prior art keywords
- drilling rod
- drilling
- sawtooth
- double helix
- double
- 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
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Abstract
The utility model provides a double-screw saw tooth wear resisting drilling rod which comprises a drilling rod head, a drilling rod axle, double screws arranged on the drilling rod axle, a drilling head connecting slot positioned on the back portion of the drilling rod and pin holes. The utility model is characterized in that the double-screw surface on the back portion of the drilling rod is uniformly fixed with saw teeth arranged on the screw surface in inclination. The utility model has the advantages that the saw teeth enable the drilling to be easier and the drilling machine can be operated by single person, also the drilling efficiency is improved and the labor intensity is reduced. Moreover, the mud can be discharged out by the gap between the teeth in the drilling process, the abrasive resistance and the anti-broken performance of the drilling rod are improved and the service life of the drilling rod is greatly improved. The utility model is also provided with the portion without teeth, which is convenient for loading and carrying and the working operation is easier; moreover, the manufacture cost is reduced and the production efficiency is improved.
Description
Technical field
The utility model provides a kind of double helix drilling rod, particularly a kind of abrasion-proof drill rod that has sawtooth that is applicable to that mine and engineering are used with rig.
Background technology
Generally be provided with double helix on the auger spindle of existing drilling rod, owing in drilling process, there is not the gap, is easy to cause the friction and the obstruction of silt, thereby causes drilling rod because of wear damage with creep into difficulty and scrap, and generally can only punch 50～70 by jewel hole, application life is shorter.Just creep into very difficulty when geological conditions is hard slightly, general rig all needs to increase in addition two people cooperation, and the three people application of force simultaneously promote drilling rod and operate just and can creep into, and have not only strengthened difficulty of construction, and have reduced operating efficiency.
The utility model content
The purpose of this utility model is to provide a kind of double helix sawtooth abrasion-proof drill rod, by the mode of sawtooth is set on the double helix face, reaches the abrasion resistance and the drilling efficiency that improve drilling rod, thereby improves the purpose of drilling life of drill pipe.
Solution of the present utility model is that this kind double helix sawtooth abrasion-proof drill rod comprises drilling rod head, drilling rod axle, is located at double helix on the drilling rod axle, is positioned at the drill bit link slot and the pin-and-hole at drilling rod rear portion, it is characterized in that on the double helix face of drilling rod back segment, evenly being fixed with sawtooth, and sawtooth is obliquely installed on helicoid.
Angle between above-mentioned sawtooth and the helicoid is 30～80 degree.
Spacing between the above-mentioned sawtooth is 2～5mm.
Above-mentioned sawtooth adopts the cast tungsten carbide material to make and be welded on the helicoid.
Above-mentioned drilling rod termination does not have the length of serrated portion less than 200mm.
Advantage of the present utility model is to be fixed with sawtooth on the double helix face, can greatly bring into play the effect of creeping into of drilling rod, makes to creep into to be more prone to, and rig only needs one man operation to get final product, and has improved drilling efficiency, has reduced labour intensity.Owing in drilling process, can discharge silt, improved the abrasion resistance and the anti-damage property of drilling rod, but every drilling rod jewel hole punch 350～400 the application life of having improved drilling rod widely by inter-lobe clearance.Because the drilling rod of this kind structure is provided with anodontia section, be convenient to load and unload and carry simultaneously, Job Operations is more prone to, reduced cost of production simultaneously, improved production efficiency.
Description of drawings
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is partial enlarged drawings of accompanying drawing 1.
Among the figure: 1, helicoid; 2, drilling rod head; 3, drilling rod axle; 4, sawtooth; 5, drill bit link.
The specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further.
With φ 34-500 type drilling rod is example explanation: drilling rod head 2 diameter 18mm, and length 58mm, drilling rod axle 3 diameter 22mm have the drill bit link slot of wide 12mm, dark 10mm at drill bit link 5.On the long helicoid 1 of drilling rod head 2 bottom 160mm, do not establishing sawtooth 4, and, adopting the cast tungsten carbide welding rod, going out sawtooth 4 with the method built-up welding of gas welding at the top of the helicoid 1 of remainder.Angle between sawtooth 4 and the helicoid 1 is 60 degree, with the weld length of helicoid be 6mm, tooth depth 3mm, the between cog spacing is 3mm.
Claims (5)
1, a kind of double helix sawtooth abrasion-proof drill rod, comprise drilling rod head, drilling rod axle, be located at double helix on the drilling rod axle, be positioned at the drill bit link slot and the pin-and-hole at drilling rod rear portion, it is characterized in that on the double helix face of drilling rod back segment, evenly being fixed with sawtooth, and sawtooth is obliquely installed on helicoid.
2, double helix sawtooth abrasion-proof drill rod according to claim 1 is characterized in that the angle between described sawtooth and the helicoid is 30～80 degree.
3, double helix sawtooth abrasion-proof drill rod according to claim 1 is characterized in that the spacing between the described sawtooth is 2～5mm.
4, double helix sawtooth abrasion-proof drill rod according to claim 1 is characterized in that described sawtooth adopts the cast tungsten carbide material to make and be welded on the helicoid.
5, double helix sawtooth abrasion-proof drill rod according to claim 1 is characterized in that described drilling rod leading portion leans on the length of the no serrated portion of the first side of drilling rod less than 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061615 CN2737928Y (en) | 2004-10-11 | 2004-10-11 | Double-screw sawtooth wear resisting drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061615 CN2737928Y (en) | 2004-10-11 | 2004-10-11 | Double-screw sawtooth wear resisting drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2737928Y true CN2737928Y (en) | 2005-11-02 |
Family
ID=35347838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061615 Expired - Fee Related CN2737928Y (en) | 2004-10-11 | 2004-10-11 | Double-screw sawtooth wear resisting drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2737928Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803533A (en) * | 2016-09-09 | 2018-03-16 | 朱明星 | Bore saw |
-
2004
- 2004-10-11 CN CN 200420061615 patent/CN2737928Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803533A (en) * | 2016-09-09 | 2018-03-16 | 朱明星 | Bore saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |