CN214091757U - Combined type spiral drill rod body - Google Patents
Combined type spiral drill rod body Download PDFInfo
- Publication number
- CN214091757U CN214091757U CN202022746863.7U CN202022746863U CN214091757U CN 214091757 U CN214091757 U CN 214091757U CN 202022746863 U CN202022746863 U CN 202022746863U CN 214091757 U CN214091757 U CN 214091757U
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- Prior art keywords
- blade
- rod section
- spiral
- wide
- auger stem
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- 238000003466 welding Methods 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 239000002893 slag Substances 0.000 abstract description 20
- 238000005553 drilling Methods 0.000 abstract description 19
- 239000003245 coal Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a combined type auger stem body, the body of rod includes high-blade auger stem section and connects two sections wide-blade auger stem sections at the axial both ends of high-blade auger stem section, the helicla flute of high-blade auger stem section communicates with the helicla flute of wide-blade auger stem section; the middle wide blade spiral rod section of the utility model has good structural strength, is suitable for being clamped by hydraulic clamping devices such as drill chucks, hydraulic presses and the like, and is beneficial to connecting and disconnecting drill rods; the high-blade spiral rod section has good slag discharging performance, and a plurality of spiral spaces are formed between the spiral channel of the drill rod and the wall of a drilled hole in the drilling process, so that the channel of the coal slag is enlarged, and the coal slag is discharged more smoothly; the integral slag discharge performance of the drill rod is improved; and the structure also realizes lightweight design through the arrangement of the high-blade spiral section, so that the material consumption of the drill rod can be reduced, and the cost of the drill rod is reduced.
Description
Technical Field
The utility model relates to a colliery rig technical field, in particular to combined type auger stem body.
Background
The drill rod is a common drilling tool for drilling water exploration and drainage holes and gas drainage holes in the underground, is used for transmitting torque in the drilling process, and continuously deepens the hole by lengthening the drill rod. In the drilling process of soft and broken soft coal seams, a general cylindrical drill rod with a smooth outer surface has a narrow slag discharge channel and a poor slag discharge effect, so that various spiral drill rods are produced. The existing auger stem is generally divided into a high-blade auger stem and a wide-blade auger stem, wherein the high-blade auger stem is formed by spirally winding high and thin blades on the outer surface of a drill stem body, and a larger spiral slag discharge channel is formed between the high blades and a core rod, so that the slag discharge effect is better improved. However, the blade is high and thin, and has weak radial strength, so that the blade cannot be applied to a hydraulic chuck clamping device of a hydraulic drilling machine, and tools such as pipe tongs, simple clamps and the like are generally manually adopted for assistance in connection and disconnection. In addition, the high blade is generally connected with the core rod by adopting a girdling welding process, and a welding seam becomes a weak link and is easy to damage. The wide-blade auger stem aims at improving the defects that the strength of the blades of the high-blade auger stem is weak and the high-blade auger stem cannot be applied to a hydraulic clamping device, and the blades are thickened and reduced in height to form the wide-blade auger stem. Although the clamping performance of the wide-blade auger stem is improved, the blades still adopt a circumferential welding process, and the welding seam is still a weak link. And because the height of the blade is reduced, the whole spiral groove is shallow, and the slag discharging effect is not as good as that of a high-blade drill rod.
The composite spiral drill rod body is provided aiming at the problems, the drill rod is not only suitable for a hydraulic clamping device of a drilling machine, but also the structural strength and the slag discharge performance of the drill rod are improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a combined type auger stem body, this drilling rod both had been applicable to the hydraulic clamping device of rig, and its structural strength and row's sediment performance of itself also obtain improving.
The utility model discloses a combined type auger stem body, include high-blade auger stem section and connect in two sections wide blade auger stem sections at high-blade auger stem section axial both ends, the helicla flute of high-blade auger stem section and the helicla flute intercommunication of wide blade auger stem section.
Further, the thickness of the blade of the wide-blade spiral rod section is 2-4 times of that of the high-blade spiral rod section.
Further, the groove depth of the high-blade spiral rod section is 2-5 times of the groove depth of the wide-blade spiral rod section.
Further, the groove width of the high-blade screw rod section is 2-4 times of the groove width of the wide-blade screw rod section.
Furthermore, the high-blade spiral rod section and the wide-blade spiral rod section are connected by friction welding.
Further, the spiral groove at the butt joint of the high-blade spiral rod section and the wide-blade spiral rod section and the blades are in smooth transition connection.
Further, the blades of the high-blade spiral rod section and the wide-blade spiral rod section are integrally formed on the rod body.
The utility model has the advantages that:
the blades and the spiral grooves of the spiral rod section with the medium-width blades are uniformly distributed, the thickness of the blades is large, the height is lower, the structural strength is good, and the clamping device is suitable for being clamped by hydraulic clamping devices such as a chuck and a clamp holder of a drilling machine and is beneficial to connecting and disconnecting drill rods; the high-blade spiral rod section has larger groove depth and groove width, has good slag discharge performance, and forms a plurality of spiral spaces between the spiral channel of the drill rod and the wall of a drill hole in the drilling process, so that the channel of the coal slag is enlarged, and the coal slag is discharged more smoothly; the integral slag discharge performance of the drill rod is improved; and the drilling rod of this structure has still realized the lightweight through the setting of high blade spiral section under the prerequisite of having compromise sediment ability and hydraulic clamping function, and the material of reducible drilling rod reduces the cost of drilling rod.
Drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a schematic view of a drill rod body structure;
Detailed Description
Referring to fig. 1, the present embodiment provides a composite spiral drill rod body, where the rod body includes a high-blade spiral rod section 1 and two wide-blade spiral rod sections 2 connected to two axial ends of the high-blade spiral rod section, and a spiral groove of the high-blade spiral rod section 1 is communicated with a spiral groove of the wide-blade spiral rod section 2. As shown in fig. 1, the high-blade screw rod section and the wide-blade screw rod section are coaxially arranged, and after the high-blade screw rod section and the wide-blade screw rod section are connected, a continuous thread groove is formed on the whole rod body, wherein the lead angles of the joints of the high-blade screw rod section and the wide-blade screw rod section are consistent, preferably, the lead angles of the high-blade screw rod section and the wide-blade screw rod section are fixed and identical, and the blades and the spiral channels on the whole rod body are continuous, so that the smoothness and the smoothness of a slag discharge channel can be ensured; known male joint and female joint structures can be connected to two ends of the rod body, and two adjacent drill rods are connected with the female joint end to end through the male joint, so that the connection and disconnection of the drill rods are facilitated, and detailed description is omitted; the blades and the spiral grooves of the wide-blade spiral rod section are uniformly distributed, the blades are large in thickness and low in height, the wide-blade spiral rod section has good structural strength, and is suitable for being clamped on the excircle of a drill rod blade by hydraulic clamping devices such as a drill chuck and a clamp holder, the connection and disconnection of a drill rod are facilitated, and the total length of the wide-blade spiral rod section is matched with the clamping width of the clamping device; the high-blade spiral rod section has larger groove depth and groove width, has good slag discharge performance, and forms a plurality of spiral spaces between the spiral channel of the drill rod and the wall of a drill hole in the drilling process, so that the channel of the coal slag is enlarged, and the coal slag is discharged more smoothly; the integral slag discharge performance of the drill rod is improved; and the drilling rod of this structure has still realized the lightweight through the setting of high blade spiral section under the prerequisite of having compromise sediment ability and hydraulic clamping function, and the material of reducible drilling rod reduces the cost of drilling rod.
In this embodiment, the thickness of the blade of the wide-blade screw rod section is 2 to 4 times that of the blade of the high-blade screw rod section. The blade thickness of this proportion can make structural strength and the hydraulic pressure clamping capacity of wide blade screw rod section and the screw channel size of high blade screw rod section synthesize and reach the balance, and the blade thickness of preferred wide blade screw rod section is 3 times of high blade screw rod section blade thickness in this embodiment, but both guaranteed the drilling rod and passed through the grippability of hydraulic chuck, has also guaranteed the row's sediment ability of drilling rod.
In this embodiment, the groove depth of the high-blade screw rod section is 2 to 5 times of the groove depth of the wide-blade screw rod section. The groove width of the high-blade screw rod section is 2-4 times of that of the wide-blade screw rod section. The strength of the high-blade spiral rod blade and the spiral channel of the spiral channel and the wide-blade spiral rod section are balanced by limiting the groove depth and the groove width, in the embodiment, the groove depth of the high-blade spiral rod section is preferably 2.5 times of the groove depth of the wide-blade spiral rod section, the groove width of the high-blade spiral rod section is preferably 3 times of the groove width of the wide-blade spiral rod section, and the blade thickness, the groove depth and the groove width of the wide-blade spiral rod section are respectively 25mm, 6mm and 25mm by taking a drill rod with an external diameter of 73mm as an example; the blade thickness, the groove depth and the groove width of the high-blade spiral rod section are respectively 8mm, 15mm and 72 mm.
In this embodiment, the high-blade screw rod section 1 and the wide-blade screw rod section 2 are connected by friction welding. The welding quality between sections of screw rods is improved through friction welding, the torsional rigidity of the drill rod is improved, and the rejection rate of welding is reduced.
In this embodiment, the spiral groove and the blade at the butt joint of the high-blade spiral rod section 1 and the wide-blade spiral rod section 2 are in smooth transition connection. Smooth transition between the spiral groove walls at the butt joint part is ensured, and the spiral groove walls at the joint part of the high-blade spiral rod section 1 and the wide-blade spiral rod section 2 can be properly deformed to realize circular arc smooth transition connection, so that a spiral channel of the drill rod is continuous, and smoothness of a slag discharge channel are ensured.
In this embodiment, the spiral grooves of the high-blade spiral rod section 1 and the wide-blade spiral rod section 2 are processed in a spiral milling manner. High blade screw rod section 1 adopts the whole milling process of thick wall steel pipe with wide blade screw rod section 2 for blade integrated into one piece compares with the boxing of blade on the body of rod, and the processing degree of difficulty is low, and blade joint strength is high.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (7)
1. A combined type auger stem body which characterized in that: including high-vane screw rod section and connect in two sections wide blade screw rod sections at high-vane screw rod section axial both ends, the helicla flute of high-vane screw rod section and the helicla flute intercommunication of wide blade screw rod section, the helicla flute degree of depth of high-vane screw rod section is greater than the helicla flute degree of depth of wide blade screw rod section, the blade thickness of high-vane screw rod section is less than the blade thickness of wide blade screw rod section.
2. The composite auger stem of claim 1, wherein: the thickness of the blade of the wide-blade spiral rod section is 2-4 times of that of the blade of the high-blade spiral rod section.
3. The composite auger stem of claim 1 or 2, wherein: the groove depth of the high-blade screw rod section is 2-5 times of that of the wide-blade screw rod section.
4. The composite auger stem of claim 1 or 2, wherein: the groove width of the high-blade screw rod section is 2-4 times of that of the wide-blade screw rod section.
5. The composite auger stem of claim 1, wherein: the high-blade spiral rod section and the wide-blade spiral rod section are connected by friction welding.
6. The composite auger stem of claim 1, wherein: the spiral groove at the butt joint of the high-blade spiral rod section and the wide-blade spiral rod section is in smooth transition connection with the blades.
7. The composite auger stem of claim 1, wherein: the blades of the high-blade spiral rod section and the wide-blade spiral rod section are integrally formed on the rod body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022746863.7U CN214091757U (en) | 2020-11-24 | 2020-11-24 | Combined type spiral drill rod body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022746863.7U CN214091757U (en) | 2020-11-24 | 2020-11-24 | Combined type spiral drill rod body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214091757U true CN214091757U (en) | 2021-08-31 |
Family
ID=77452325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022746863.7U Active CN214091757U (en) | 2020-11-24 | 2020-11-24 | Combined type spiral drill rod body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214091757U (en) |
-
2020
- 2020-11-24 CN CN202022746863.7U patent/CN214091757U/en active Active
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