Spiral drill rod for coal mine
By installing structures such as installation cylinders, triangular plates, and unblocking rods on the auger drill rods used in coal mines, the problem of blockage in the guide holes was solved, enabling the drill rods to operate normally and achieve efficient progress.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN RUIGONG MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-17
AI Technical Summary
In the current use of auger drill rods for coal mines, the guide hole is easily blocked by coal, which affects the progress of the work.
A spiral drill rod for coal mines was designed. By setting an installation cylinder, triangular plate, limiting plate and unblocking rod on the drill rod body, the unblocking rod is driven to slide in the guide hole by the cooperation of fixing screw and threaded hole, so as to prevent coal blockage.
It effectively prevents the guide hole from becoming clogged, ensures the normal operation of the drill pipe, and improves work efficiency.
Smart Images
Figure CN224134589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drill pipe technology, specifically a spiral drill pipe for coal mines. Background Technology
[0002] A drill pipe is a threaded steel pipe used to connect the surface equipment of a drilling rig to the drilling equipment or bottom hole assembly located at the bottom of the well. The purpose of the drill pipe is to transport drilling mud to the drill bit and, together with the drill bit, raise, lower, or rotate the bottom hole assembly. The drill pipe must be able to withstand enormous internal and external pressure, torsion, bending, and vibration. Coal mines are areas where humans extract coal resources in coal-rich areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, underground tunnels are typically dug to extract the coal; this is an underground coal mine. When the coal seam is very close to the surface, the surface soil is typically stripped to extract the coal; this is an open-pit coal mine. The vast majority of coal mines in China are underground mines. The scope of a coal mine includes both above-ground and underground facilities, as well as related infrastructure. In a large region, a coal mine is a rationally excavated space created by humans when mining geological strata rich in coal. It typically includes tunnels, shafts, and mining faces. Coal is the most important solid fuel and a type of combustible organic rock. It is formed by the gradual accumulation of thick layers of lush vegetation that grew in a suitable geological environment during a certain geological era. These layers were buried underwater or in silt and sand, and then formed through natural coalification over a long geological period. Among the various geological periods in the world, the Carboniferous, Permian, Jurassic, and Tertiary strata contain the most coal and are important coal-forming eras. Coal generally has a carbon content of 46% to 97%, is brown to black, and has a dull to metallic luster. According to the degree of coalification, coal can be divided into four categories: peat, lignite, bituminous coal, and anthracite.
[0003] Currently, existing auger drill rods for coal mines require the addition of water to cool the drill rod body and the coal mine during use. However, the guide holes in the existing drill rod body can become clogged by the coal mine, thus affecting the work progress. Therefore, there is an urgent need for an auger drill rod for coal mines to improve the above problems. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.
[0005] Therefore, one objective of this utility model is to provide a spiral drill rod for coal mines to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.
[0006] To achieve the above objectives, one embodiment of this utility model provides a spiral drill rod for coal mines, comprising a drill rod body, an installation cylinder disposed on the outer side of the drill rod body, a triangular plate A disposed on the outer side of the installation cylinder, a triangular plate B disposed on one side of the triangular plate A, a limiting plate disposed on one side of the triangular plate B, a limiting frame disposed on the outer side of the limiting plate, a connecting cylinder disposed on the outer side of the limiting frame, a connecting block disposed on the inner wall of the connecting cylinder, a limiting cylinder disposed inside the connecting block, a dredging rod disposed at the bottom of the triangular plate B, a spring rod disposed at the top of the triangular plate B, a guide hole opened at the bottom of the connecting cylinder, and a connector disposed at the top of the installation cylinder.
[0007] The present invention is further configured such that: a threaded hole is provided inside the drill rod body, a fixing screw is provided inside the threaded hole, the fixing screw is adapted to the threaded hole, and one end of the drill rod body is engaged with the inside of the mounting cylinder.
[0008] By adopting the above technical solution, the fixing screw is matched with the threaded hole, which serves to fix and connect the drill rod body and the mounting cylinder.
[0009] The present invention is further configured such that: the triangular plate A is fixedly connected to the outside of the mounting cylinder, and the triangular plate B is adapted to the triangular plate A.
[0010] By adopting the above technical solution, triangle B is adapted to triangle A, which plays the role of driving the dredging rod to rise and fall.
[0011] The present invention is further configured such that: the triangular plate B is fixedly connected to the limiting plate, and the limiting plate is slidably connected to the inside of the limiting frame.
[0012] By adopting the above technical solution, the limiting plate is slidably connected to the inside of the limiting frame, which plays a role in preventing the triangular plate B from tilting.
[0013] The present invention is further configured such that: one end of the spring rod is fixedly connected to the triangular plate B, the other end of the spring rod is fixedly connected to the inside of the connecting cylinder, and the unblocking rod is fixedly connected to the bottom of the triangular plate B.
[0014] By adopting the above technical solution, the unblocking rod is fixedly connected to the bottom of the triangular plate B, which serves to prevent coal from clogging the inside of the borehole.
[0015] The present invention is further configured such that: the connecting block is fixedly connected to the inside of the connecting cylinder, the limiting cylinder is fixedly connected to the inside of the connecting block, and the mounting cylinder is rotatably connected to the inside of the limiting cylinder.
[0016] By adopting the above technical solution, the mounting cylinder is rotatably connected to the inside of the limiting cylinder, which drives the triangular plate A to move.
[0017] In summary, the beneficial technical effects of this utility model are as follows:
[0018] This auger drill rod for coal mines connects the drill rod body to the mounting cylinder through the cooperation of the fixing screw and the threaded hole. Triangle plate A, in cooperation with the mounting cylinder, drives triangle plate B to rise and fall. Triangle plate A and triangle plate B, in cooperation, drive the dredging rod to rise and fall. The connecting cylinder, limit bracket, and limit plate facilitate the rising and falling of triangle plate B. The connecting cylinder, connecting block, and limit cylinder facilitate the rotation of the mounting cylinder. Using this structure, during the operation of the drill rod body, the dredging rod slides inside the guide hole, preventing blockage of the guide hole.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the mounting cylinder of this utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the connecting cylinder of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the triangular plate B of this utility model;
[0025] Figure 5 This is a schematic diagram of the bottom structure of the connecting cylinder of this utility model;
[0026] Figure 6 This is a schematic diagram of the structure of the drill pipe body of this utility model.
[0027] In the diagram: 1. Drill rod body; 2. Mounting cylinder; 3. Triangle plate A; 4. Triangle plate B; 5. Limiting plate; 6. Limiting frame; 7. Connecting cylinder; 8. Connecting block; 9. Limiting cylinder; 10. Unblocking rod; 11. Spring rod; 12. Guide hole; 13. Connector; 14. Threaded hole; 15. Fixing screw. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0029] Example 1
[0030] Reference Figures 1 to 5 This utility model discloses a spiral drill rod for coal mines, comprising a drill rod body 1, an installation cylinder 2 on the outer side of the drill rod body 1, a triangular plate A3 on the outer side of the installation cylinder 2, a triangular plate B4 on one side of the triangular plate A3, a limiting plate 5 on one side of the triangular plate B4, a limiting frame 6 on the outer side of the limiting plate 5, a connecting cylinder 7 on the outer side of the limiting frame 6, a connecting block 8 on the inner wall of the connecting cylinder 7, a limiting cylinder 9 inside the connecting block 8, a clearing rod 10 at the bottom of the triangular plate B4, a spring rod 11 at the top of the triangular plate B4, a guide hole 12 at the bottom of the connecting cylinder 7, and a connector 13 at the top of the installation cylinder 2. In this embodiment, the drill rod body 1 serves to crush coal, and the installation cylinder 2 serves to connect the drill rod body 1.
[0031] Reference Figure 2 and Figure 6 The drill rod body 1 has a threaded hole 14 inside, and a fixing screw 15 is provided inside the threaded hole 14. The fixing screw 15 is adapted to the threaded hole 14. One end of the drill rod body 1 is snapped into the inside of the mounting cylinder 2. In this embodiment, the threaded hole 14 serves to facilitate the fixing screw 15, and the fixing screw 15 serves to connect the mounting cylinder 2 and the drill rod body 1.
[0032] Reference Figure 2 Triangle plate A3 is fixedly connected to the outside of the mounting cylinder 2. Triangle plate B4 is adapted to triangle plate A3. In this embodiment, triangle plate A3 plays the role of pushing triangle plate B4 to rise and fall, and triangle plate B4 plays the role of driving the unblocking rod 10 to rise and fall.
[0033] Referring to 3, the triangular plate B4 is fixedly connected to the limiting plate 5, and the limiting plate 5 is slidably connected inside the limiting frame 6. In this embodiment, the limiting plate 5 facilitates the lifting and lowering of the triangular plate B4, and the connecting cylinder 7 fixes the limiting frame 6.
[0034] Reference Figure 2 and Figure 3One end of the spring rod 11 is fixedly connected to the triangular plate B4, and the other end of the spring rod 11 is fixedly connected to the inside of the connecting cylinder 7. The unblocking rod 10 is fixedly connected to the bottom of the triangular plate B4. In this embodiment, the spring rod 11 plays the role of pushing the triangular plate B4 to reset, and the unblocking rod 10 plays the role of preventing the guide hole 12 from being blocked.
[0035] Reference Figure 2 and Figure 3 The connecting block 8 is fixedly connected to the inside of the connecting cylinder 7, and the limiting cylinder 9 is fixedly connected to the inside of the connecting block 8. The mounting cylinder 2 is rotatably connected to the inside of the limiting cylinder 9. In this embodiment, the connecting block 8 serves to fix the connecting cylinder 7 and the limiting cylinder 9, and both the connecting cylinder 7 and the limiting cylinder 9 serve to facilitate the rotation of the mounting cylinder 2.
[0036] The implementation principle of this embodiment is as follows:
[0037] During use, the connecting cylinder 7 needs to be snapped into the inside of the equipment. Even when the equipment drives the drill rod body 1 to rotate, the connecting cylinder 7 remains stationary. At the same time, the equipment has an output shaft for driving the equipment, which is snapped into the inside of the fixing screw 15 to drive the drill rod body 1 to rotate. When the drill rod body 1 rotates, it will drive the installation cylinder 2, the limiting cylinder 9, and the inside of the connecting cylinder 7 to rotate. When the installation cylinder 2 is driven by the drill rod body 1 to rotate, it will drive the triangular plate A3 to rotate together. Since the triangular plate A3 and the triangular plate B4 are snapped together and their inclined surfaces are parallel to each other, when the installation cylinder 2 drives the triangular plate A3 to move, due to the cooperation of the limiting plate 5 and the limiting frame 6, the triangular plate A3 moves while the triangular plate B4 slides upward under the pressure of the triangular plate A3.
[0038] During the upward sliding of triangle plate B4 by triangle plate A3, the limiting plate 5 slides up and down inside the limiting frame 6. Triangle plate B4 is fixedly connected to the limiting plate 5, which prevents triangle plate B4 from moving, but allows triangle plate B4 to move up and down. During the upward and downward sliding of triangle plate B4, when the tips of triangle plate A3 and triangle plate B4 come into contact, the output shaft of spring rod 11 will be in a compressed state. When triangle plate A3 and triangle plate B4 come into contact with each other at an angle, the output shaft of spring rod 11 will be in an extended state. For every 45 degrees that the mounting cylinder 2 drives triangle plate A3 to rotate, triangle plate B4 completes the upward and downward sliding on one side. Since the unblocking rod 10 is fixedly connected to triangle plate B4, when triangle plate B4 slides up and down, it will drive unblocking rod 10 to slide up and down inside the guide hole 12.
[0039] The unblocking rod 10 slides up and down continuously inside the guide hole 12. So when coal gets stuck inside the guide hole 12, the unblocking rod 10 can push the coal to move, thereby preventing the coal from blocking the guide hole 12. During the process of the equipment driving the drill rod body 1 to rotate, a water pipe (or other water supply equipment) needs to be connected to the inside of the connector 13 to continuously inject water into the inside of the connector box. The water that enters the inside of the connector 7 will spray from the guide hole 12 onto the drill rod body 1 and the coal it contacts, and can also drive the unblocking rod 10 to push the coal out of the guide hole 12.
[0040] Compared with the prior art, the present invention has the following advantages:
[0041] The fixing screw 15, in conjunction with the threaded hole 14, connects the drill rod body 1 and the mounting cylinder 2. The triangular plate A3, in conjunction with the mounting cylinder 2, pushes the triangular plate B4 to rise and fall. The triangular plate A3, in conjunction with the triangular plate B4, drives the unblocking rod 10 to rise and fall. The connecting cylinder, the limiting bracket 6, and the limiting plate 5 facilitate the rising and falling of the triangular plate B4. The connecting cylinder 7, the connecting block 8, and the limiting cylinder 9 facilitate the rotation of the mounting cylinder 2. By using the above structure, during the operation of the drill rod body 1, the unblocking rod 10 slides inside the guide hole 12, preventing the guide hole 12 from becoming blocked.
[0042] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A screw drill rod for use in coal mines characterised in that: The system includes a drill rod body (1), an installation cylinder (2) on the outside of the drill rod body (1), a triangular plate A (3) on the outside of the installation cylinder (2), a triangular plate B (4) on one side of the triangular plate A (3), a limiting plate (5) on one side of the triangular plate B (4), a limiting frame (6) on the outside of the limiting plate (5), a connecting cylinder (7) on the outside of the limiting frame (6), a connecting block (8) on the inner wall of the connecting cylinder (7), a limiting cylinder (9) inside the connecting block (8), a dredging rod (10) at the bottom of the triangular plate B (4), a spring rod (11) at the top of the triangular plate B (4), a guide hole (12) at the bottom of the connecting cylinder (7), and a connector (13) at the top of the installation cylinder (2).
2. The auger flight for coal mining according to claim 1, characterized in that: The drill rod body (1) has a threaded hole (14) inside, and a fixing screw (15) is provided inside the threaded hole (14). The fixing screw (15) is adapted to the threaded hole (14), and one end of the drill rod body (1) is engaged inside the mounting cylinder (2).
3. The spiral drill rod for coal mine according to claim 1, characterized in that: The triangular plate A (3) is fixedly connected to the outside of the mounting cylinder (2), and the triangular plate B (4) is adapted to the triangular plate A (3).
4. The auger flight according to claim 1, wherein: The triangular plate B (4) is fixedly connected to the limiting plate (5), and the limiting plate (5) is slidably connected inside the limiting frame (6).
5. The auger flight according to claim 1, wherein: One end of the spring rod (11) is fixedly connected to the triangular plate B (4), the other end of the spring rod (11) is fixedly connected to the inside of the connecting cylinder (7), and the unblocking rod (10) is fixedly connected to the bottom of the triangular plate B (4).
6. The auger flight according to claim 1, wherein: The connecting block (8) is fixedly connected to the inside of the connecting cylinder (7), the limiting cylinder (9) is fixedly connected to the inside of the connecting block (8), and the mounting cylinder (2) is rotatably connected to the inside of the limiting cylinder (9).