A coal mine drilling rod polishing device

Abstract

The utility model discloses a kind of coal mining drilling rod polishing and polishing device, it is related to machining technical field, including: main body, rotatably arranged with roller thereon, still rotatably installed with multiple coaxial arrangement's polishing wheel, the polishing area of drilling rod is formed between the roller and the polishing wheel;Collecting box is located below the polishing area, four positioning columns are arranged thereon;Supporting plate includes first arc section and second arc section and third arc section located at both ends;The inner arc surface of the arc plate of the top of the present scheme cylinder is towards the polishing wheel, and the outer arc surface between adjacent arc plate forms the temporary storage area of scrap, temporary storage area rotates towards third arc section, by the passive rotation of cylinder, the scrap of temporary storage is stably transported to the arc surface of third arc section, avoid that scrap directly falls and causes splashing.

Description

Technical Field

[0001] This utility model relates to the technical field of machining, specifically to a device for grinding and polishing drill rods used in coal mining. Background Technology

[0002] In coal mining operations, drill pipes are core drilling components, and their surface smoothness directly affects drilling efficiency and service life. Therefore, surface treatment is required through grinding and polishing equipment. Existing drill pipe grinding and polishing equipment typically consists of a main body, a grinding wheel, a roller, and a debris collection structure. The roller supports the drill pipe and works in conjunction with the grinding wheel to achieve uniform grinding. A collection box and a receiving plate collect the debris generated during grinding. Some devices also optimize the receiving plate structure to reduce debris jamming and accumulation, and use an anti-static coating to reduce safety hazards.

[0003] However, existing devices still have shortcomings in the debris handling process: the debris generated by the high-speed rotation of the grinding wheel is easy to fall directly and splash, which not only pollutes the working environment and increases the difficulty of cleaning, but may also pose a safety risk to the operators. At the same time, traditional debris receiving structures mostly adopt a straight plate design, which has a limited receiving area. After the debris is impacted, it is easy to bounce back and cause splashing, affecting the safety of operation and the cleanliness of the environment.

[0004] Therefore, those skilled in the art have provided a device for grinding and polishing drill rods in coal mining to solve the problems mentioned above. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a drill rod grinding and polishing device for coal mining.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A coal mine drill rod grinding and polishing device includes:

[0008] The main body has a roller rotatably mounted on it, and multiple grinding wheels coaxially mounted thereon, forming a grinding area for the drill rod between the roller and the grinding wheels;

[0009] A collection box is located below the polishing area and has four positioning posts on it;

[0010] The receiving plate includes a first arc-shaped portion and a second arc-shaped portion and a third arc-shaped portion located at both ends, and the four positioning posts are respectively located at the ends and bends of the receiving plate, and the third arc-shaped portion corresponds to the area where the debris thrown out by the grinding wheel falls.

[0011] A cylinder is rotatably disposed within the third arc-shaped section. Multiple arc-shaped plates are evenly disposed on the side of the cylinder. The inner arc surface of the arc-shaped plate at the top of the cylinder faces the grinding wheel, and a temporary storage area for debris is formed between it and the outer arc surface of the adjacent arc-shaped plate. The temporary storage area rotates toward the third arc-shaped section, and the third arc-shaped section guides the debris to slide into the first arc-shaped section.

[0012] Preferably, the height of the grinding wheel is higher than the height of the roller, and the height of the third arc-shaped portion is higher than the height of the second arc-shaped portion.

[0013] Preferably, two mounting plates are symmetrically fixed to the side of the third arc-shaped portion, and the cylinder and the mounting plates are rotatably connected by a rotating shaft.

[0014] Preferably, a scraper is fixed at the edge of the arc-shaped plate, and the edge of the scraper is fitted to the inner arc surface of the third arc-shaped part.

[0015] Preferably, the two sides of the first arc-shaped portion contact the inner walls of the two sides of the collection box, and the bottom of the first arc-shaped portion contacts the bottom wall of the collection box.

[0016] In summary, this utility model has the following beneficial technical effects:

[0017] The inner arc surface of the arc plate at the top of the cylinder faces the grinding wheel, forming a temporary storage area for debris between it and the outer arc surface of the adjacent arc plate. The temporary storage area rotates towards the third arc section. Through the passive rotation of the cylinder, the temporarily stored debris is smoothly transported to the arc surface of the third arc section, preventing debris from falling directly and causing splashing. The third arc section guides the debris to slide into the first arc section. Compared with the straight plate design, the arc plate has a larger opening and a larger receiving surface for each temporary storage area, which is more conducive to rotation. Even if it collides with the inner walls on both sides of the temporary storage area, it is not easy to splash, resulting in better performance. Attached Figure Description

[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the collection box structure of this utility model;

[0021] Figure 3 This is a side view sectional structural diagram of the receiving plate of this utility model;

[0022] Figure 4This is a side view of the mounting plate structure of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Main body; 2. Collection box; 3. Receiving plate; 4. Cylinder; 11. Roller; 12. Grinding wheel; 21. Positioning post; 31. First arc-shaped part; 32. Second arc-shaped part; 33. Third arc-shaped part; 34. Mounting plate; 41. Arc-shaped plate; 42. Scraper. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] A coal mine drilling rod grinding and polishing device, as described in the reference Figure 1-4 ,include:

[0026] The main body 1 has a rotatable roller 11 with anti-slip texture on its surface, which can stably support the drill rod and drive it to rotate at a uniform speed to ensure uniform grinding. Multiple coaxial grinding wheels 12 are also rotatably mounted on the main body 1. The grinding zone of the drill rod is formed between the roller 11 and the grinding wheels 12. Through the speed matching design of the roller 11 and the grinding wheels 12, the drill rod maintains a stable posture during grinding, avoiding deviation or vibration and ensuring grinding accuracy.

[0027] The collection box 2 is located below the polishing area. It is made of stainless steel in one piece and has good load-bearing capacity and corrosion resistance. It is equipped with four positioning posts 21.

[0028] The receiving plate 3 includes a first arc-shaped portion 31 and second arc-shaped portions 32 and third arc-shaped portions 33 located at both ends. The receiving plate 3 is injection molded from high-strength engineering plastic and coated with a wear-resistant and anti-static coating. It is not only lightweight and easy to install and disassemble, but also prevents debris from adsorbing and accumulating, while avoiding safety hazards caused by static electricity. Four positioning posts 21 are located at the ends and bends of the receiving plate 3, respectively. Through the four-point positioning structure, the receiving plate 3 is stable and reliable after installation and will not be displaced due to vibration. The third arc-shaped portion 33 corresponds to the area where the debris thrown out by the grinding wheel 12 falls. Its arc angle has been optimized by fluid mechanics to guide the debris to slide smoothly along the arc surface of the third arc-shaped portion 33, avoiding jamming and accumulation.

[0029] The cylinder 4 is rotatably mounted within the third arc-shaped section 33. Multiple arc-shaped plates 41 are evenly distributed on the sides of the cylinder 4. These arc-shaped plates 41 are integrally formed with the cylinder 4, resulting in high structural strength and resistance to deformation and damage. The inner arc surface of the arc-shaped plate 41 at the top of the cylinder 4 faces the grinding wheel 12, forming a temporary storage area for debris between it and the outer arc surface of the adjacent arc-shaped plate 41. This storage area rotates towards the third arc-shaped section 33. Through the passive rotation of the cylinder 4 (driven by debris impact), the stored debris is smoothly transported to the arc surface of the third arc-shaped section 33, preventing debris from falling directly and causing splashing. The third arc-shaped section 33 guides the debris to slide into the first arc-shaped section 31. Compared to the straight plate design, the arc-shaped plate 41 provides a larger opening and a larger bearing surface for each storage area, facilitating rotation. Even when impacting the inner walls of the storage area, it is less prone to splashing, resulting in better performance.

[0030] The height of the grinding wheel 12 is higher than that of the roller 11. This height difference design allows the grinding wheel 12 to form the optimal contact angle with the drill rod surface, which can ensure sufficient grinding pressure and avoid excessive compression that could cause the drill rod to deform. The height of the third arc-shaped part 33 is higher than that of the second arc-shaped part 32. The second arc-shaped part 32 can catch the debris below the roller 11 and can accommodate the height difference between the grinding wheel 12 and the roller 11.

[0031] Two mounting plates 34 are symmetrically fixed on the side of the third arc-shaped part 33, and the cylinder 4 is rotatably connected to the mounting plate 34 through a rotating shaft. The contact surface at the connection between the cylinder 4 and the mounting plate 34 is small, which reduces rotational friction, makes the cylinder 4 rotate more smoothly, and reduces energy consumption and noise.

[0032] A scraper 42 is fixed at the edge of the arc plate 41. The scraper 42 is made of elastic and wear-resistant rubber material, which has good fit and wear resistance. The edge of the scraper 42 is fitted to the inner arc surface of the third arc part 33, which can scrape off the debris attached to the inner surface of the third arc part 33 in real time, preventing the residue from accumulating and affecting the guiding effect.

[0033] The two sides of the first arc-shaped part 31 contact the inner walls of the two sides of the collection box 2, and the bottom of the first arc-shaped part 31 contacts the bottom wall of the collection box 2, forming a fully enclosed debris guiding channel, ensuring that all debris guided by the receiving plate 3 can fall into the first arc-shaped part 31, effectively improving the debris collection rate, reducing the dust concentration in the working environment, and protecting the health of operators.

[0034] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A drill rod polishing apparatus for use in coal mining, characterised in that, include: The main body (1) is rotatably provided with a roller (11) and a plurality of coaxial grinding wheels (12) are also rotatably installed thereon. The grinding area of ​​the drill rod is formed between the roller (11) and the grinding wheels (12). The collection box (2) is located below the polishing area and has four positioning posts (21) on it. The receiving plate (3) includes a first arc-shaped part (31) and a second arc-shaped part (32) and a third arc-shaped part (33) located at both ends, and the four positioning posts (21) are located at the ends and bends of the receiving plate (3) respectively. The third arc-shaped part (33) corresponds to the area where the debris thrown out by the grinding wheel (12) falls. A cylindrical tube (4) is rotatably disposed inside the third arc-shaped part (33). Multiple arc-shaped plates (41) are evenly disposed on the side of the cylindrical tube (4). The inner arc surface of the arc-shaped plate (41) at the top of the cylindrical tube (4) faces the grinding wheel (12) and forms a temporary storage area for debris between it and the outer arc surface of the adjacent arc-shaped plate (41). The temporary storage area rotates toward the third arc-shaped part (33), and the third arc-shaped part (33) guides the debris to slide into the first arc-shaped part (31).

2. The coal mine drilling rod polishing device according to claim 1, characterized in that: The height of the grinding wheel (12) is higher than the height of the roller (11), and the height of the third arc-shaped part (33) is higher than the height of the second arc-shaped part (32).

3. The coal mine drilling rod polishing device according to claim 1, characterized in that: Two mounting plates (34) are symmetrically fixed on the side of the third arc-shaped part (33), and the cylinder (4) and the mounting plates (34) are rotatably connected by a rotating shaft.

4. The coal mine drilling rod grinding and polishing device according to claim 1, characterized in that: A scraper (42) is fixed at the edge of the arc plate (41), and the edge of the scraper (42) is fitted to the inner arc surface of the third arc part (33).

5. A coal mine drill rod grinding and polishing device according to claim 1, characterized in that: The two sides of the first arc-shaped part (31) are in contact with the inner walls of the two sides of the collection box (2), and the bottom of the first arc-shaped part (31) is in contact with the bottom wall of the collection box (2).

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