CN215979247U - Novel special integrative auger stem in colliery - Google Patents
Novel special integrative auger stem in colliery Download PDFInfo
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- CN215979247U CN215979247U CN202023321535.9U CN202023321535U CN215979247U CN 215979247 U CN215979247 U CN 215979247U CN 202023321535 U CN202023321535 U CN 202023321535U CN 215979247 U CN215979247 U CN 215979247U
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Abstract
The utility model relates to a drilling machine drilling tool for a coal mine, in particular to a novel integrated spiral drill rod special for the coal mine, which comprises threads and a screw rod, wherein the threads and the screw rod are of an integrated structure, the distance between the threads is 20-26 mm, the height of the threads is 8-15 mm, the thickness of the outer edge of each thread is 3-6 mm, the threads are formed by forging and pressing the screw rod and are screwed along the axial direction, a discharge chute is formed between the threads, an inner connecting groove is formed at one end of the screw rod, an outer connecting bulge is formed at the other end of the screw rod, and a plurality of screw rods can be connected and extended; the improved drill rod connection mode is convenient to operate, stable in connection, high in operation efficiency, not easy to slip and idle, and smooth in chip removal and powder discharge.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a novel integrated spiral drill rod special for a coal mine.
Background
The mechanized large-scale popularization, and more application of modernized coal mining equipment has improved productivity ratio in the pit, and coal drilling rod is a consumptive material commonly used, and the mineral exploitation is punched the hole and is bored the hole indispensable.
China CN2238314Y discloses a durable coal drill rod, and the main design key points lie in that after wearing and tearing the old-fashioned twist drill rod, the drill rod both ends can be exchanged and reused, compared with the old-fashioned twist drill rod, the service life is prolonged, but because the structural design still can not overcome the old-fashioned screw thread wearing and tearing fast, the chip removal is not smooth and easy, the bending resistance is poor, the drill sticking phenomenon appears even, and the drilling speed is influenced.
In addition, the drill rod with the split design of the screw threads and the screw rod is arranged on the market, the screw threads are in strip-shaped spiral and are connected with the screw rod through spot welding, the strip-shaped screw threads are beneficial to discharging scraps, abrasion of the drill rod in a drill hole is reduced, due to the split design, the spot welding connection strength is limited, the drill jamming is easy to occur when the screw threads are subjected to desoldering, the use is influenced, and the defects also exist.
In addition, how quick connection of drilling rod can adapt to multiple drilling depth requirements, the drill bit quick replacement prevents that idle running all remains to be solved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects and problems, the utility model provides a novel integrated spiral drill rod special for a coal mine, which has the advantages of simple structure, convenience in use, high forging processing strength and durability.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a novel special integrative auger stem in colliery, includes thread and screw rod, thread and screw rod structure as an organic whole, thread interval 20 ~ 26mm, the height of thread 8 ~ 15mm, thread outer fringe thickness 3 ~ 6mm, the thread forms along axial spiral for the screw forging and pressing and twists into, constitutes the blown down tank between the thread, the screw rod wherein one end sets up interior connecting groove, the other end sets up the outer joint arch, the extension can be connected to a plurality of screw rods.
The connecting groove in one end of the screw is provided with an inner bevel rib, and the inner bevel rib is matched with the drill bit and can prevent relative idling.
The screw teeth are single screw teeth or double screw teeth.
The drill bit inserting part is conical, and the front end of the drill bit inserting part is slightly narrow.
The screw rod can adopt a thread structure according to the requirement.
The utility model has the beneficial effects that:
the utility model provides a novel integrated spiral drill rod special for a coal mine, which is forged and formed, has high strength, good bending resistance and strong wear resistance, and is 3-6 times of the service life of the old coal electric drill rod; through the drilling rod connected mode after the improvement, convenient operation connects stably, and operating efficiency is high, is difficult to smooth and freely rotate, and the powder is arranged smoothly to the chip removal, and drilling speed is fast, and the pore-forming is clear, and the drilling does not remain the detritus, and the drilling rod is connected convenient and fast with the drill bit, has improved the coal seam tunnelling probing construction progress, has improved work efficiency, extensively is applicable to drilling and exploitation such as colliery, gypsum.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic sectional view of fig. 2.
Reference numbers in the figures: 1 is a screw, 2 is a screw thread, 21 is the outer edge of the screw thread, 22 is the inner wall of the screw thread, 3 is a connecting bulge, 4 is the distance between the screw threads, 5 is a connecting groove, and 6 is a drill bit inserting part.
Detailed Description
The present invention will be further explained with reference to the drawings and examples, and the structure of the front end of the drill bit is omitted.
Example 1
The utility model provides a novel special integrative auger stem in colliery, includes thread and screw rod, thread and screw rod structure as an organic whole, thread interval 20 ~ 26mm, the height of thread 8 ~ 15mm, thread outer fringe thickness 3 ~ 6mm, the thread forms along axial spiral for the screw forging and pressing and twists into, constitutes the blown down tank between the thread, the screw rod wherein one end sets up interior connecting groove, the other end sets up the outer joint arch, the extension can be connected to a plurality of screw rods.
The connecting groove in one end of the screw is provided with an inner bevel rib, and the inner bevel rib is matched with the drill bit and can prevent relative idling.
The screw teeth are single screw teeth or double screw teeth.
The drill bit inserting part is conical, and the front end of the drill bit inserting part is slightly narrow.
The improved novel integrated spiral drill rod special for the coal mine is high in connection efficiency between rods, and the insertion part of the drill bit is of a conical structure with ribs, so that idling is prevented, and the drill bit can rotate forwards and backwards.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.
Claims (5)
1. The utility model provides a novel special integrative auger stem in colliery, includes thread and screw rod, its characterized in that: the screw thread and screw rod structure as an organic whole, screw thread interval 20 ~ 26mm, screw thread height 8 ~ 15mm, screw thread outer fringe thickness 3 ~ 6mm, the screw thread forms along axial spiral for the screw rod forging and pressing and twists into, constitutes the blown down tank between the screw thread, screw rod wherein one end sets up interior connecting groove, the other end sets up outer joint protruding, the extension can be connected to a plurality of screw rods.
2. The novel integrated auger stem for coal mines as claimed in claim 1, wherein the internal connection groove at one end of the auger is provided with an internal angled rib, and the internal rib is matched with the drill bit and can prevent relative idle rotation.
3. The novel integrated auger stem for coal mines as claimed in claim 1, wherein the screw threads are single or double.
4. The novel integrated auger stem for coal mines as claimed in claim 2, wherein the drill bit insertion part is conical and has a slightly narrower front end.
5. The novel integrated auger stem for coal mines as claimed in claim 2, wherein the screw is of a threaded structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023321535.9U CN215979247U (en) | 2020-12-31 | 2020-12-31 | Novel special integrative auger stem in colliery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023321535.9U CN215979247U (en) | 2020-12-31 | 2020-12-31 | Novel special integrative auger stem in colliery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215979247U true CN215979247U (en) | 2022-03-08 |
Family
ID=80567301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023321535.9U Active CN215979247U (en) | 2020-12-31 | 2020-12-31 | Novel special integrative auger stem in colliery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215979247U (en) |
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2020
- 2020-12-31 CN CN202023321535.9U patent/CN215979247U/en active Active
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