CN210564392U - Non-excavation integral drill rod - Google Patents
Non-excavation integral drill rod Download PDFInfo
- Publication number
- CN210564392U CN210564392U CN201920594846.0U CN201920594846U CN210564392U CN 210564392 U CN210564392 U CN 210564392U CN 201920594846 U CN201920594846 U CN 201920594846U CN 210564392 U CN210564392 U CN 210564392U
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- China
- Prior art keywords
- thread
- tooth
- drill rod
- rod body
- angle
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- 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
- 238000009412 basement excavation Methods 0.000 title claims abstract description 7
- 238000005553 drilling Methods 0.000 claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 10
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a whole drilling rod of non-excavation, it includes the drilling rod body, the both ends of drilling rod body are equipped with pin thread and box respectively, the external screw thread has been seted up on the lateral wall of pin thread, be equipped with the internal thread with external screw thread threaded connection on the inside wall of box, internal thread and external screw thread are tooth type taper thread, the tooth of tooth type taper thread includes first flank angle and second flank angle, the angle of first flank angle is 45, the angle of second flank angle is 30; the tooth crest and the tooth root of the tooth-type conical thread are both arc-shaped, the radius of the tooth crest is 1.2mm, and the radius of the tooth root is 1.1 mm; the thread pitch of the thread type taper thread is 7.255-7.258 mm. The utility model discloses have the effect that improves drilling rod connection leakproofness, the shackle of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of the drilling rod technique and specifically relates to a whole drilling rod of non-excavation is related to.
Background
The trenchless drill rod is a main component of the horizontal guide drilling machine, and has the functions of transmitting torque and prolonging the distance of a horizontal well in the drilling process.
When the existing trenchless drill rod is used, the sealing surface at the end part of the internal thread and the corresponding step surface of the external thread are tightly combined to reach the sealing by the threaded connection of the male joint and the female joint. However, the stress at the root of the thread of the drill rod joint with the structure is seriously concentrated, the thread is easy to break, the sealing performance is poor, and the drill rod joint can only adapt to the pressure in a smaller range.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a whole drilling rod of non-excavation has the advantage that improves the drilling rod and connect the leakproofness.
The utility model provides a technical scheme that its technical problem adopted is:
a non-excavation integral drill rod comprises a drill rod body, wherein a male buckle and a female buckle are respectively arranged at two ends of the drill rod body, an external thread is arranged on the outer side wall of the male buckle, an internal thread in threaded connection with the external thread is arranged on the inner side wall of the female buckle,
the internal thread and the external thread are both tooth-type taper threads, the teeth of the tooth-type taper threads comprise a first flank angle and a second flank angle, the angle of the first flank angle is 45 degrees, and the angle of the second flank angle is 30 degrees;
the tooth crest and the tooth root of the tooth-type conical thread are both arc-shaped, the radius of the tooth crest is 1.2mm, and the radius of the tooth root is 1.1 mm;
the thread pitch of the thread type taper thread is 7.255-7.258 mm.
Further: and performing nitriding treatment on the surface of the thread of the tooth type taper.
Further: the end part of the drill rod body, which is close to the male buckle, is inwards sunken to form an arc-shaped groove, and a water-swelling water stop strip is arranged in the arc-shaped groove.
Further: the end part of the drill rod body, which is close to the male buckle, is inwards sunken to form an arc-shaped groove, and a water-swelling water stop strip is arranged in the arc-shaped groove.
Further: the drill rod comprises a drill rod body and is characterized in that annular grooves are formed in the drill rod body and located at two ends of the drill rod body, reinforcing plates are arranged in the annular grooves, and a plurality of drain holes are uniformly distributed in the reinforcing plates along the circumferential direction of the reinforcing plates.
Further: the inner side wall of the drill rod body is coated with a corrosion-resistant layer, and the corrosion-resistant layer is made of epoxy resin.
The utility model has the advantages that: the external thread of the male buckle is a tooth-shaped taper thread, the angle of a first flank angle of the tooth-shaped taper thread is 45 degrees, the angle of a second flank angle of the tooth-shaped taper thread is 30 degrees, the sealing strength of the drill rod is 150 Pa from the original 100 Pa, and the sealing strength of the drill rod is improved. Meanwhile, the number of times of shackle is prolonged, so that the number of times of shackle reaches 1500, the probability of thread gluing is reduced, and the connection of the drill rod is more convenient.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
In the figure, 1, a drill rod body; 11. an annular groove; 12. a reinforcing plate; 13. a drain hole; 2. a male buckle; 3. A female buckle; 4. an arc-shaped slot; 41. a water-swelling sealing strip when meeting water; 5. a corrosion resistant layer.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in figure 1, the trenchless integral drill rod comprises a drill rod body 1, wherein a male buckle 2 and a female buckle 3 are respectively arranged at two ends of the drill rod body 1, and the length of the male buckle 2 is 89-89.1 mm. The outer side wall of the male buckle 2 is provided with an external thread, and the inner side wall of the female buckle 3 is provided with an internal thread in threaded connection with the external thread.
As shown in figures 1 and 2, in order to strengthen the sealing performance of the pin thread 2 and the box thread 3 and facilitate the shackle, the internal thread and the external thread are both set into the thread type taper thread, the surface of the thread type taper thread is subjected to nitriding treatment, the strength of the thread type taper thread is improved, and the thread pitch of the thread type taper thread is 7.255-7.258 mm. The teeth of the thread type taper thread comprise a first flank angle and a second flank angle, the angle of the first flank angle is 45 degrees for facilitating connection of a drill rod, and the angle of the second flank angle is 30 degrees for improving the dragging strength and the pressure.
As shown in fig. 2, the crest and the root of the tapered thread are both arc-shaped, the radius of the crest is 1.2mm, and the radius of the root is 1.1 mm. The tooth top and the tooth root are arcs and can reduce the stress concentration of the tooth-shaped taper thread, so that the tooth-shaped taper thread is not easy to break, and the connection sealing property of the drill rod is improved.
As shown in figure 1, in order to further improve the tightness of the connection of the drill rod, an arc-shaped groove 4 is inwards recessed at the end part of the drill rod body 1 close to the male buckle 2, and a water-swelling water stop bar 41 is arranged in the arc-shaped groove 4. The rubber generates 2-3 times of expansion deformation after meeting water, fills all irregular surfaces, cavities and gaps of the joint, generates huge contact pressure and thoroughly prevents leakage.
As shown in fig. 1, an annular groove 11 is arranged inside the drill rod body 1, the annular grooves 11 are located at two ends of the drill rod body 1, reinforcing plates 12 are arranged in the annular grooves 11, and a plurality of water drainage holes 13 are uniformly distributed on the reinforcing plates 12 along the circumferential direction of the reinforcing plates. The reinforcing plate 12 can improve the strength of the drill rod body 1, prolong the service life of the drill rod body 1, and the drain holes 13 enable water in the drill rod body 1 to be uniformly drained, so that the drill rod construction is facilitated.
As shown in fig. 1, the inner side wall of the drill rod body 1 is coated with a corrosion-resistant layer 5, and the corrosion-resistant layer 5 is epoxy resin. The corrosion-resistant layer 5 can improve the service life of the drill rod body 1.
In conclusion, the external thread of the male buckle 2 is a tooth-shaped taper thread, the angle of the first flank angle of the tooth-shaped taper thread is 45 degrees, connection of a drill rod can be facilitated, the angle of the second flank angle is 30 degrees, the dragging strength and the pressure can be improved, the sealing strength of the drill rod is 150 Pa from the original 100 Pa, and the sealing strength of the drill rod is improved. Meanwhile, the times of shackle removal are prolonged, the probability of thread gluing is reduced, and the drill rod connection is more convenient.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a whole drilling rod of non-excavation, includes drilling rod body (1), the both ends of drilling rod body (1) are equipped with pin thread (2) and box (3) respectively, the external screw thread has been seted up on the lateral wall of pin thread (2), be equipped with the internal thread with external screw thread threaded connection on the inside wall of box (3), its characterized in that:
the internal thread and the external thread are both tooth-type taper threads, the teeth of the tooth-type taper threads comprise a first flank angle and a second flank angle, the angle of the first flank angle is 45 degrees, and the angle of the second flank angle is 30 degrees;
the tooth crest and the tooth root of the tooth-type conical thread are both arc-shaped, the radius of the tooth crest is 1.2mm, and the radius of the tooth root is 1.1 mm;
the thread pitch of the thread type taper thread is 7.255-7.258 mm.
2. A trenchless integral drill pipe as claimed in claim 1 wherein:
and performing nitriding treatment on the surface of the thread of the tooth type taper.
3. A trenchless integral drill pipe as claimed in claim 2 wherein:
the length of the male buckle (2) is 89-89.1 mm.
4. A trenchless integral drill pipe as claimed in claim 3 wherein:
the drill rod body (1) is close to the end part of the male buckle (2) and is inwards sunken to form an arc-shaped groove (4), and a water-swelling water stop strip (41) is arranged in the arc-shaped groove (4).
5. A trenchless integral drill pipe as claimed in claim 1 wherein:
the drill rod comprises a drill rod body (1), wherein an annular groove (11) is formed in the drill rod body (1), the annular groove (11) is located at two ends of the drill rod body (1), reinforcing plates (12) are arranged in the annular groove (11), and a plurality of drain holes (13) are uniformly distributed in the reinforcing plates (12) along the circumferential direction of the reinforcing plates.
6. A trenchless integral drill pipe as claimed in claim 2 wherein:
the drill rod comprises a drill rod body (1), and is characterized in that the inner side wall of the drill rod body (1) is coated with a corrosion-resistant layer (5), and the corrosion-resistant layer (5) is made of epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594846.0U CN210564392U (en) | 2019-04-27 | 2019-04-27 | Non-excavation integral drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594846.0U CN210564392U (en) | 2019-04-27 | 2019-04-27 | Non-excavation integral drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210564392U true CN210564392U (en) | 2020-05-19 |
Family
ID=70675054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920594846.0U Expired - Fee Related CN210564392U (en) | 2019-04-27 | 2019-04-27 | Non-excavation integral drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210564392U (en) |
-
2019
- 2019-04-27 CN CN201920594846.0U patent/CN210564392U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |