Groove drilling rod capable of easily discharging slag

Abstract

The utility model relates to the technical field of coal mine underground excavation equipment, and discloses a grooving drill rod capable of easily discharging slag, which comprises an annular groove rod, a water injection groove is arranged on the left side of the inner wall of the annular groove rod, a rotating groove is arranged in the middle of the inner wall of the annular groove rod, and a rotating groove is arranged on the right side of the inner wall of the annular groove rod. A rotating wheel is rotatably connected to the left side of the inner wall of the annular groove rod, a rotating column is fixedly connected to the right side of the rotating wheel, a spraying ring is fixedly connected to the right side of the rotating column, a water inlet hole is formed in the right side of the spraying ring, a plurality of spraying grooves are formed in the front side and the rear side of the annular groove rod at equal intervals, and a connector is fixedly connected to the bottom wall of the annular groove rod. High-pressure water flow can drive the rotating wheel to enable the spraying ring to rotate, so that the water flow enters the spraying ring through the rotating groove to start rotating spraying, and the water flow is ejected through the spraying grooves with inclined angles under the condition that the spraying ring rotates to generate centrifugal force, so that the water flow flushes drilling cuttings on the surface of a drill rod along the annular groove.

Description

Technical Field

[0001] The utility model relates to the technical field of underground coal mine excavation equipment, in particular to a grooved drill rod which is easy to discharge slag. Background Art

[0002] Coal mines are places where coal resources are extracted from underground. They are the foundation of the coal industry. Coal mines not only provide energy resources, but also have important significance for economic and social development. In coal mines, the main work is the mining process, which is to mine and extract underground coal. There are many ways to mine coal, including open-pit mining and underground mining. Underground mining is to mine and transport coal through underground mining.

[0003] Grooved drill pipe is a drilling tool commonly used in underground mining and tunnel engineering. It consists of a drill pipe and a grooved drill bit, and is used for drilling in underground rock or soil. The main feature of grooved drill pipe is the groove structure on the drill pipe. The grooves on the drill pipe are usually spiral-shaped and are used to discharge drill cuttings from the drill hole. The groove design of grooved drill pipe can improve drilling efficiency, reduce blockage and clogging of drill cuttings, and better control the depth and direction of drilling.

[0004] When the existing drill rod is working, the temperature of the end of the drill rod head is relatively high, and cooling water is usually required to reduce the temperature. The cooling water then flows out from the groove gap and the thread of the drill rod. However, the flushing range of the cooling water is limited, so the debris cannot be flushed out well. Therefore, a grooved drill rod that is easy to discharge slag is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a grooved drill rod that is easy to discharge slag, aiming to improve the problem that the range of cooling water flushing is limited, so that the debris cannot be flushed and discharged well.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a grooved drill rod that is easy to discharge slag, comprising a ring groove rod, a water injection groove is opened on the left side of the inner wall of the ring groove rod, a rotation groove is opened in the middle of the inner wall of the ring groove rod, a rotation groove is opened on the right side of the inner wall of the ring groove rod, a rotating wheel is rotatably connected to the left side of the inner wall of the ring groove rod, a rotating column is fixedly connected to the right side of the rotating wheel, a spray ring is fixedly connected to the right side of the rotating column, a water inlet hole is opened on the right side of the spray ring, a plurality of spraying grooves are equidistantly opened on the front and rear sides of the ring groove rod, a connecting head is fixedly connected to the bottom wall of the ring groove rod, and a cutting mechanism is provided on the bottom wall of the connecting head.

[0007] As a further description of the above technical solution:

[0008] The cutting mechanism includes a rotating shaft, the top wall of the rotating shaft is fixedly connected to the bottom wall of the connecting head, the bottom wall of the rotating shaft is fixedly connected to a cutting head, the inner top wall of the cutting head is provided with a threaded groove, the bottom wall of the cutting head is provided with a threaded column, the outer wall of the threaded column is threadedly connected to the threaded groove, the bottom wall of the threaded column is fixedly connected to a drill bit, the outer wall of the drill bit is equidistantly fixedly connected to a plurality of annular cutting plates, and the bottom wall of the drill bit is fixedly connected to a concave cutting head.

[0009] As a further description of the above technical solution:

[0010] The inner wall diameter of the water injection groove matches the inner wall diameter of the rotating groove, the inner wall diameter of the rotating groove matches the internal size of the water inlet hole, and the middle part of the spray ring is rotatably connected to the rotating groove.

[0011] As a further description of the above technical solution:

[0012] The four corners of the bottom wall of the cutting head are all fixedly connected with protective inclined blocks.

[0013] As a further description of the above technical solution:

[0014] The bottoms of the front and rear sides of the annular groove rod are both provided with vertical grooves, and the outer wall of the connecting head is provided with a plurality of oblique grooves at equal intervals.

[0015] As a further description of the above technical solution:

[0016] The top wall of the annular groove rod is fixedly connected with a rubber ring.

[0017] As a further description of the above technical solution:

[0018] A sealing ring is fixedly installed at the bottom end of the outer wall of the annular groove rod, and the bottom wall of the sealing ring is fixedly connected to the top wall of the connecting head.

[0019] As a further description of the above technical solution:

[0020] The four corners of the bottom of the outer wall of the cutting head are all provided with arc-shaped cut surfaces.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, cooling water is introduced into the water injection groove so that the high-pressure water flow can drive the runner to rotate the spray ring, so that the water flows into the spray ring through the rotating groove and starts to rotate and spray. When the spray ring rotates to generate centrifugal force, the water flows out through multiple spray grooves with inclined angles, so that the water flows along the ring groove to wash the drill cuttings on the surface of the drill pipe, so as to expand the washing area and improve the slag discharge efficiency.

[0023] 2. In the utility model, the coal mine is initially enlarged and crushed by the concave cutting head and the whittling cutting head, and the drill bit is crushed into a hole for the second time, which can reduce the load of the drill bit to a certain extent. The working efficiency of the drill bit is improved by the joint work of multiple annular cutting plates, and the service life of the grooved drill rod is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a grooved drill rod for easy slag removal proposed by the utility model;

[0025] Figure 2 A cross-sectional view of a ring groove rod of a grooved drill rod for easy slag removal proposed by the utility model;

[0026] Figure 3 The utility model is a schematic diagram of a cutting mechanism of a grooved drill rod which is easy to discharge slag.

[0027] Legend:

[0028] 1. Annular groove rod; 2. Cutting mechanism; 201. Rotating shaft; 202. Cutting head; 203. Threaded groove; 204. Threaded column; 205. Drill bit; 206. Annular cutting plate; 207. Concave cutting head; 208. Protective inclined block; 3. Water injection groove; 4. Rotating wheel; 5. Rotating column; 6. Spray ring; 7. Water inlet hole; 8. Rotating groove; 9. Rotating groove; 10. Spraying groove; 11. Connecting head; 12. Inclined groove; 13. Sealing ring; 14. Vertical groove; 15. Rubber ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 and Figure 2The utility model provides an embodiment: a grooved drill rod for easy slag discharge, comprising a ring groove rod 1, a water injection groove 3 is provided on the left side of the inner wall of the ring groove rod 1, a rotating groove 9 is provided in the middle part of the inner wall of the ring groove rod 1, a rotating groove 8 is provided on the right side of the inner wall of the ring groove rod 1, a rotating wheel 4 is rotatably connected to the left side of the inner wall of the ring groove rod 1, a rotating column 5 is fixedly connected to the right side of the rotating wheel 4, a spray ring 6 is fixedly connected to the right side of the rotating column 5, a water inlet hole 7 is provided on the right side of the spray ring 6, a plurality of spraying grooves 10 are equidistantly provided on the front and rear sides of the ring groove rod 1, and a connector 11 is fixedly connected to the bottom wall of the ring groove rod 1; the inner wall diameter of the water injection groove 3 matches the inner wall diameter of the rotating groove 8, the inner wall diameter of the rotating groove 8 matches the internal size of the water inlet hole 7, and the middle part of the spray ring 6 is rotatably connected to the rotating groove 9;

[0031] Specifically, the high-pressure water flow is introduced into the water injection tank 3 through an external high-pressure water pump. In the process of passing through the water injection tank 3, the high-pressure water flow drives the runner 4 to rotate. The movement of the runner 4 further drives the rotating column 5 to rotate, so that the spray ring 6 rotates efficiently. The high-pressure water flow passes through the rotating groove 8 in the water injection tank 3 and flows into the inside of the spray ring 6. In the process of the spray ring 6 rotating, the centrifugal force causes the water flow to be ejected through a plurality of spraying grooves 10 with inclined angles. This design enables the water flow to wash the drill cuttings on the surface of the drill pipe in all directions along the ring groove of the outer wall of the ring groove rod 1. In this way, the washing area of ​​the drill pipe surface can be greatly expanded, thereby improving the slag removal efficiency. During the drilling process, this efficient hydraulic flushing system can effectively remove the drill cuttings on the surface of the drill pipe and reduce the wear of the drill pipe. By matching the inner wall diameter of the water injection tank 3 with the inner wall diameter of the rotating tank 8, and matching the inner wall diameter of the rotating tank 8 with the internal size of the water inlet hole 7, the water flow is smoother when it is transported to the spray ring 6.

[0032] Reference Figure 1 , vertical grooves 14 are provided at the bottom of the front and rear sides of the annular groove rod 1, and a plurality of oblique grooves 12 are provided at equal intervals on the outer wall of the connector 11; a rubber ring 15 is fixedly connected to the top wall of the annular groove rod 1; a sealing ring 13 is fixedly installed at the bottom end of the outer wall of the annular groove rod 1, and the bottom wall of the sealing ring 13 is fixedly connected to the top wall of the connector 11;

[0033] Specifically, through the vertical groove 14 and the plurality of inclined grooves 12 , the water flow sprayed along the annular groove can be guided to cool the surface of the cutting head 202 , and the sealing effect between the annular groove rod 1 and the connecting head 11 can be improved through the sealing ring 13 .

[0034] Reference Figure 1 and Figure 3The bottom wall of the connector 11 is provided with a cutting mechanism 2, the cutting mechanism 2 comprises a rotating shaft 201, the top wall of the rotating shaft 201 is fixedly connected to the bottom wall of the connector 11, the bottom wall of the rotating shaft 201 is fixedly connected with a cutting head 202, the inner top wall of the cutting head 202 is provided with a thread groove 203, the bottom wall of the cutting head 202 is provided with a thread column 204, the outer wall of the thread column 204 is threadedly connected to the thread groove 203, the bottom wall of the thread column 204 is fixedly connected with a drill bit 205, the outer wall of the drill bit 205 is equidistantly fixedly connected with a plurality of annular cutting plates 206, and the bottom wall of the drill bit 205 is fixedly connected with a concave cutting head 207;

[0035] Specifically, through the punching action of mechanical equipment, the concave cutting head 207 and the cutting head 202 are used to initially expand and crush the coal mine. In this process, the drill bit 205 is responsible for secondary crushing to make the hole more complete. This design reduces the load of the drill bit 205 to a certain extent, thereby increasing its service life. The annular cutting plate 206 enables the drill bit 205 to perform crushing operations more smoothly. In addition, the design of the annular cutting plate 206 also helps to improve the stability of the drill bit 205 and reduce the wear caused by the vibration of the drill bit 205. The grooved drill rod not only improves the drilling efficiency, but also greatly reduces the operating cost. By optimizing the design of the drill bit 205, the loss of the drill bit 205 during coal mining is reduced, thereby extending its service life.

[0036] Reference Figure 3 The four corners of the bottom wall of the cutting head 202 are all fixedly connected with protective inclined blocks 208; the four corners of the bottom of the outer wall of the cutting head 202 are all provided with arc-shaped sections;

[0037] Specifically, the plurality of protective bevel blocks 208 can effectively reduce the damage to the cutting head 202 caused by relatively hard objects, and the four corners of the bottom of the outer wall of the cutting head 202 are all provided with arc-shaped sections, so that the resistance encountered during the punching and rotation is smaller.

[0038] Working principle: When the slag discharge work starts, the water is introduced into the water injection groove 3 through an external high-pressure water pump, so that the high-pressure water flow drives the runner 4 when passing through the water injection groove 3, so that the runner 4 drives the rotating column 5 to rotate the spray ring 6, and the high-pressure water flow continues to pass through the water injection groove 3 and enters the spray ring 6 via the rotating groove 8, so as to be sprayed through the spray ring 6. The centrifugal force generated by the water flow when the spray ring 6 rotates causes the water flow to be ejected through a plurality of spray grooves 10 with inclined angles, so that the water flow washes the drill cuttings on the surface of the drill rod along the annular groove of the outer wall of the annular groove rod 1, so as to achieve the purpose of expanding the flushing area of ​​the drill rod surface, thereby improving the slag discharge efficiency, and the grooved drill rod is subjected to the transmission force generated by the stamping of the mechanical equipment, so that the concave cutting head 207 and the cutting head 202 initially expand and crush the coal mine, and the drill bit 205 performs secondary crushing to form a hole, which can reduce the load of the drill bit 205 to a certain extent, and the use of the annular cutting plate 206 can improve the stability of the drill bit 205 when drilling, and extend the service life of the grooved drill rod.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grooved drill rod for easy slag removal, comprising a ring groove rod (1), characterized in that: The inner wall of the annular groove rod (1) is provided with a water injection groove (3) on the left side, the inner wall of the annular groove rod (1) is provided with a rotation groove (9) in the middle, the inner wall of the annular groove rod (1) is provided with a rotation groove (8) on the right side, the inner wall of the annular groove rod (1) is rotatably connected to a rotating wheel (4) on the left side, the right side of the rotating wheel (4) is fixedly connected to a rotating column (5), the right side of the rotating column (5) is fixedly connected to a spray ring (6), the right side of the spray ring (6) is provided with a water inlet hole (7), the front and rear sides of the annular groove rod (1) are provided with a plurality of spraying grooves (10) at equal intervals, the bottom wall of the annular groove rod (1) is fixedly connected to a connecting head (11), and the bottom wall of the connecting head (11) is provided with a cutting mechanism (2).

2. The grooved drill rod for easy slag removal according to claim 1, characterized in that: The cutting mechanism (2) comprises a rotating shaft (201), the top wall of the rotating shaft (201) is fixedly connected to the bottom wall of the connecting head (11), the bottom wall of the rotating shaft (201) is fixedly connected to a cutting head (202), the inner top wall of the cutting head (202) is provided with a thread groove (203), the bottom wall of the cutting head (202) is provided with a thread column (204), the outer wall of the thread column (204) is threadedly connected to the thread groove (203), the bottom wall of the thread column (204) is fixedly connected to a drill bit (205), the outer wall of the drill bit (205) is fixedly connected to a plurality of annular cutting plates (206) at equal intervals, and the bottom wall of the drill bit (205) is fixedly connected to a concave cutting head (207).

3. The grooved drill rod for easy slag removal according to claim 1, characterized in that: The inner wall diameter of the water injection groove (3) matches the inner wall diameter of the rotating groove (8), and the inner wall diameter of the rotating groove (8) matches the internal size of the water inlet hole (7). The middle part of the spray ring (6) is rotatably connected to the rotating groove (9).

4. The grooved drill rod for easy slag removal according to claim 2, characterized in that: Protective bevel blocks (208) are fixedly connected to the four corners of the bottom wall of the cutting head (202).

5. The grooved drill rod for easy slag removal according to claim 1, characterized in that: The front and rear bottoms of the annular groove rod (1) are both provided with vertical grooves (14), and the outer wall of the connecting head (11) is provided with a plurality of oblique grooves (12) at equal intervals.

6. The grooved drill rod for easy slag removal according to claim 1, characterized in that: A rubber ring (15) is fixedly connected to the top wall of the annular groove rod (1).

7. The grooved drill rod for easy slag removal according to claim 1, characterized in that: A sealing ring (13) is fixedly mounted on the bottom end of the outer wall of the annular groove rod (1), and the bottom wall of the sealing ring (13) is fixedly connected to the top wall of the connector (11).

8. The grooved drill rod for easy slag removal according to claim 2, characterized in that: The four corners of the bottom of the outer wall of the cutting head (202) are all provided with arc-shaped cut surfaces.

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