Anchor rod drilling device for main cavern excavation

Abstract

The utility model discloses a main cavern excavation anchor rod drilling device, which relates to the technical field of cavern construction, and comprises a driving motor fixed on a base, a water inlet pipe connected with an external water pump, a support plate fixed on the base and an auxiliary component, a drilling rod is fixedly arranged at the output end of the driving motor, the drilling rod penetrates through the support plate, and a drilling hole is formed in the drilling rod. A water bin is fixedly arranged in the supporting plate, water outlet pipes which are evenly distributed are fixedly arranged on the outer side of the water bin, nozzles which spray water towards the drilling rod are fixedly arranged at the ends, away from the water bin, of the water outlet pipes, and an auxiliary assembly used for adjusting the water spraying angle of the nozzles is arranged on the outer side of the supporting plate. An external water pump is used for pumping water into the water inlet pipe, the water enters the water bin through the water inlet pipe during drilling and then enters the nozzle through the water outlet pipe to be sprayed out of the drilling position, and the sprayed water captures cement flying dust generated during drilling and settles the flying dust, so that the flying dust is prevented from flying in the air and being sucked by workers.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a device for drilling anchor bolts during main tunnel excavation. Background Technology

[0002] Oil reserves are mainly divided into two types: strategic reserves and commercial reserves. However, based on the experience gained in the pre-feasibility and feasibility study stages of some underground water-sealed caverns in my country, it is of great practical significance to carry out research on the excavation and support of the main cavern of underground caverns during the large-scale construction of underground water-sealed caverns in China.

[0003] When conducting research on the excavation of the main tunnel, it is necessary to fix anchor bolts on the inside of the tunnel. Before fixing the anchor bolts, anchor holes need to be made in the inner wall of the tunnel. Patent CN218204360U discloses a drilling device for anchor bolts on the slope of the foundation pit, which includes a motor. The output end of the motor is fixedly connected to a threaded rod. A threaded pipe is provided on the outside of the motor. A linkage mechanism is provided on the outside of the motor. The linkage mechanism includes a sleeve and two connecting rods. A drilling rod is slidably connected to the inner wall of the sleeve. A limit mechanism is provided on the outside of the motor. The limit mechanism includes two sleeves. A push-pull mechanism is provided on the outside of the motor. The push-pull mechanism includes a fixed plate and a moving frame.

[0004] The aforementioned device generates a large amount of cement dust when drilling concrete. This cement dust is directly scattered around the drilling workers and can be inhaled by them, thus affecting their health. Therefore, we propose a main tunnel excavation anchor bolt drilling device. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a main tunnel excavation anchor bolt drilling device. When drilling anchor bolts using a drilling rod, an external water pump pumps water into the inlet pipe. Simultaneously with drilling, the water enters the water tank through the inlet pipe and then flows through the outlet pipe into the nozzle, spraying it out towards the drilling site. The sprayed water captures the cement dust generated during drilling, causing the dust to settle and preventing it from being inhaled by workers.

[0006] In order to solve the above-mentioned technical problems, the present invention solves the problem that cement dust flying in the air during anchor drilling is inhaled by workers through the following technical solution.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A main tunnel excavation anchor bolt drilling device includes a drive motor fixed on a base, a water inlet pipe connected to an external water pump, a support plate fixed on the base, and auxiliary components. A drilling rod is fixedly provided at the output end of the drive motor, the drilling rod passes through the support plate, a water tank is fixedly provided inside the support plate, and a uniformly distributed water outlet pipe is fixedly provided outside the water tank. A nozzle for spraying water toward the drilling rod is fixedly provided at the end of the water outlet pipe away from the water tank. An auxiliary component for adjusting the spray angle of the nozzle is provided outside the support plate.

[0009] Preferably, the auxiliary component includes a rotating ring, which is rotatably mounted on the side of the support plate away from the drive motor. The rotating ring is coaxial with the drilling rod. A limiting plate is fixedly mounted on the side of the rotating ring away from the support plate. The inner side of the limiting plate is fixedly provided with evenly distributed limiting protrusions. A fixing frame is provided on the outer side of the nozzle. The fixing frame is fixed to the outer side of the water tank. A rotating shaft is rotatably mounted inside the fixing frame. The nozzle is fixedly mounted in the middle of the rotating shaft. Symmetrically distributed torsion springs are fixed on the outer side of the rotating shaft. One end of the torsion spring is fixed to the fixing frame, and the other end is fixed to the nozzle. A rotating component is provided on the outer side of the support plate to drive the rotating ring to rotate. The rotation of the rotating ring drives the limiting protrusions to squeeze the nozzle, thereby adjusting the spray angle of the nozzle.

[0010] Preferably, the rotating component includes a rotating motor fixed on the base, an output shaft fixedly provided at the output end of the rotating motor, the output shaft passing through the support plate and rotatably connected to the support plate, a gear fixedly provided at the end of the output shaft away from the rotating motor, and uniformly distributed external teeth provided on the outer side of the rotating ring, the gear meshing with the external teeth, the rotating motor drives the rotating ring to rotate, thereby the continuous rotation of the rotating ring drives the limiting protrusion to continuously squeeze the rebound nozzle, thereby increasing the spray range of the nozzle.

[0011] Preferably, a protective box is fixedly provided on the outside of the support plate, and the external teeth and gears are located inside the protective box to protect the gears and external teeth.

[0012] Preferably, the nozzle is an atomizing nozzle to improve the water's adsorption effect on dust.

[0013] Preferably, the limiting protrusion is an arc-shaped protrusion, and the connection between the limiting protrusion and the inner side of the limiting plate is arc-shaped, so that the movement of the nozzle at the limiting protrusion is smoother.

[0014] Preferably, the water outlet pipe is a plastic flexible hose, which is convenient to accommodate the movement of the nozzle.

[0015] Preferably, a support ring is fixedly provided on the outside of the protective box, and the rotating ring is rotatably located inside the support ring to improve the support effect on the rotating ring and ensure the normal rotation of the rotating ring.

[0016] Preferably, both the limiting protrusion and the side of the limiting plate closest to the support plate are arc-shaped to disperse the stress of the nozzle when it moves inside the limiting plate, thereby reducing nozzle wear.

[0017] Preferably, the limiting protrusions are distributed between the nozzles, so that all nozzles move simultaneously when the rotating ring rotates, resulting in a more stable dust suppression effect.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] When drilling anchor bolts using a drilling rod, this utility model uses an external water pump to pump water into the inlet pipe. At the same time as drilling, the water enters the water tank through the inlet pipe and then enters the nozzle through the outlet pipe and is sprayed out to the drilling site. The sprayed water captures the cement dust generated during drilling, settles the dust, and prevents the dust from flying in the air and being inhaled by workers.

[0020] By rotating the nozzles within a fixed frame outside the water tank, and then using the rotation of the rotating ring to drive the limiting protrusion to continuously squeeze the nozzles, all nozzles rotate inward or outward simultaneously, continuously spraying water towards the drilling site during the drilling process, increasing the water spray area, and thus improving the dust suppression effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0024] Figure 3 This is a schematic diagram of the rotating ring part of this utility model;

[0025] Figure 4 This is a schematic diagram of the rotating component structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the nozzle distribution of this utility model;

[0027] Figure 6 This is a schematic diagram showing the relative positions of the nozzle and the fixing frame of this utility model;

[0028] Figure 7 This is a schematic diagram of the inner structure of the rotating ring of this utility model.

[0029] Drawing number descriptions: 1. Drive motor; 2. Drill rod; 3. Inlet pipe; 4. Support plate; 5. Water tank; 6. Outlet pipe; 7. Nozzle; 8. Auxiliary components; 9. Rotating ring; 10. Limiting plate; 11. Limiting protrusion; 12. Fixing frame; 13. Rotating shaft; 14. Torsion spring; 15. Rotating component; 16. Rotating motor; 17. Output shaft; 18. Gear; 19. External gear; 20. Protective box; 21. Support ring. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0032] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or gear 18 must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation of this utility model.

[0033] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0034] Example:

[0035] Please see Figures 1-7 A main tunnel excavation anchor bolt drilling device includes a drive motor 1 fixed on a base, a water inlet pipe 3 connected to an external water pump, a support plate 4 fixed on the base, and an auxiliary component 8. A drilling rod 2 is fixedly provided at the output end of the drive motor 1, and the drilling rod 2 passes through the support plate 4. A water tank 5 is fixedly provided inside the support plate 4, and a uniformly distributed water outlet pipe 6 is fixedly provided outside the water tank 5. A nozzle 7 for spraying water toward the drilling rod 2 is fixedly provided at the end of the water outlet pipe 6 away from the water tank 5. The nozzle 7 is an atomizing nozzle to improve the adsorption effect of water on flying dust. The water outlet pipe 6 is a plastic hose to facilitate the movement of the nozzle 7. The auxiliary component 8 for adjusting the spray angle of the nozzle 7 is provided outside the support plate 4.

[0036] The following describes some embodiments of this application in detail with reference to the accompanying drawings:

[0037] Please see Figures 1-7 When drilling anchor bolts using drill rod 2, water is pumped into water inlet pipe 3 using an external water pump. At the same time as drilling, water inlet pipe 3 enters water tank 5, and then enters nozzle 7 through water outlet pipe 6 and is sprayed out to the drilling site. The sprayed water captures the cement dust generated during drilling, settles the dust, and prevents the dust from being inhaled by workers.

[0038] The auxiliary component 8 includes a rotating ring 9, which is rotatably positioned on the side of the support plate 4 away from the drive motor 1. The rotating ring 9 is coaxial with the drill rod 2. A limiting plate 10 is fixedly mounted on the side of the rotating ring 9 away from the support plate 4. Evenly distributed limiting protrusions 11 are fixedly mounted on the inner side of the limiting plate 10. The limiting protrusions 11 are arc-shaped, and the connection between the limiting protrusions 11 and the inner side of the limiting plate 10 is arc-shaped. This makes the movement of the nozzle 7 at the limiting protrusions 11 smoother. At the same time, both the limiting protrusions 11 and the side of the limiting plate 10 closest to the support plate 4 are arc-shaped, and the arc-shaped contact surface can disperse the movement of the nozzle 7 inside the limiting plate 10. The stress during operation is reduced, thereby reducing the wear of the nozzle 7. A fixing frame 12 is provided on the outside of the nozzle 7, and the fixing frame 12 is fixed to the outside of the water tank 5. A rotating shaft 13 is rotatably provided inside the fixing frame 12. The nozzle 7 is fixed in the middle of the rotating shaft 13. Symmetrically distributed torsion springs 14 are fixed on the outside of the rotating shaft 13. One end of the torsion spring 14 is fixed to the fixing frame 12, and the other end is fixed to the nozzle 7. The spring force of the torsion spring 14 presses the nozzle 7 against the inside of the limiting plate 10. A rotating component 15 is provided on the outside of the support plate 4 to drive the rotating ring 9 to rotate. The rotation of the rotating ring 9 drives the limiting protrusion 11 to squeeze the nozzle 7 and adjust the spray angle of the nozzle 7.

[0039] In addition, the rotating component 15 includes a rotating motor 16 fixed on the base, a protective box 20 fixed on the outside of the support plate 4, a support ring 21 fixed on the outside of the protective box 20, and a rotating ring 9 rotatably disposed inside the support ring 21 to improve the support effect on the rotating ring 9 and ensure the normal rotation of the rotating ring 9. An output shaft 17 is fixedly disposed at the output end of the rotating motor 16. The output shaft 17 passes through the support plate 4 and is rotatably connected to the support plate 4. A gear 18 is fixedly disposed at the end of the output shaft 17 away from the rotating motor 16. The rotating ring 9 is provided with evenly distributed external teeth 19 on its outside. The external teeth 19 and the gear 18 are disposed inside the protective box 20. The protective box 20 is used to protect the gear 18 and the external teeth 19 to prevent dust from falling on the gear 18 and the external teeth 19 and affecting the normal transmission of the gear 18. The gear 18 and the external teeth 19 are meshed and connected. The rotating motor 16 drives the rotating ring 9 to rotate, thereby driving the limiting protrusion 11 to continuously squeeze the rebound nozzle 7 through the continuous rotation of the rotating ring 9, thereby increasing the spray range of the nozzle 7.

[0040] It is worth noting that, such as Figure 3 and Figure 5 As shown, the limiting protrusions 11 and the nozzles 7 are distributed in sequence. When the rotating ring 9 rotates, all the nozzles 7 move at the same time, resulting in a more stable dust reduction effect.

[0041] To improve the adhesion between the device and cement, the implementation method of this application will be described as follows:

[0042] First, water is pumped into the inlet pipe 3 using a water pump, and then into the water tank 5. The water enters the outlet pipe 6 from the water tank 5 and is then sprayed out through the nozzle 7. The water is sprayed out in a mist form through the nozzle 7.

[0043] Then, start the drive motor 1, which drives the drill rod 2 to rotate. The drill rod 2 drills holes in the concrete inner wall of the tunnel, generating cement dust. The cement dust is captured by water mist, thus settling the cement dust particles in the air. After the water mist combines with the cement dust particles, it increases the weight of the particles, making them easier to fall, thereby achieving the purpose of dust suppression, improving the working environment of workers, reducing the amount of cement dust inhaled by workers, and ensuring the health of workers.

[0044] Simultaneously, the output shaft 17 is driven to rotate by the rotating motor 16, and the rotating ring 9 is driven to rotate by the meshing of the gear 18 on the output shaft 17 and the external teeth 19 on the outer side of the rotating ring 9. Due to the presence of the torsion spring 14, the nozzle 7 is always attached to the inner wall of the limiting plate 10. The limiting plate 10 rotates together with the rotating ring 9. Through the compression of the limiting protrusion 11, the nozzle 7 swings inward and outward once at a certain frequency within the limiting plate 10, thereby increasing the spray range of the nozzle 7, thereby increasing the dispersion area of ​​the water mist and improving the dust suppression effect.

[0045] In some embodiments, the nozzle 7 continuously sprays water toward the drilling site, and the water mist hits the drilling rod 2, which can reduce the temperature of the drilling rod 2 and prevent the drilling rod 2 from overheating during drilling.

[0046] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. A main tunnel excavation anchor bolt drilling device, comprising: A drive motor (1) is fixed on the base, and a drilling rod (2) is fixedly provided at the output end of the drive motor (1). Its characteristic is that it further includes: The inlet pipe (3) is connected to an external water pump and the support plate (4) is fixed on the base. The drill rod (2) passes through the support plate (4). A water tank (5) is fixed inside the support plate (4). A uniformly distributed outlet pipe (6) is fixed outside the water tank (5). A nozzle (7) that sprays water toward the drill rod (2) is fixed at one end of the outlet pipe (6) away from the water tank (5). The auxiliary component (8) for adjusting the spray angle of the nozzle (7) is located on the outside of the support plate (4); The auxiliary component (8) includes a rotating ring (9), which is rotatably disposed on the side of the support plate (4) away from the drive motor (1). The rotating ring (9) is coaxial with the drilling rod (2). A limiting plate (10) is fixedly disposed on the side of the rotating ring (9) away from the support plate (4). A uniformly distributed limiting protrusion (11) is fixedly disposed on the inner side of the limiting plate (10). A fixing frame (12) is disposed on the outer side of the nozzle (7). The fixing frame (12) is fixed to the outer side of the water tank (5). A rotating shaft (13) is rotatably disposed inside the fixing frame (12). The nozzle (7) is fixedly disposed in the middle of the rotating shaft (13). A symmetrically distributed torsion spring (14) is fixedly disposed on the outer side of the rotating shaft (13). One end of the torsion spring (14) is fixed to the fixing frame (12), and the other end is fixed to the nozzle (7). A rotating component (15) for driving the rotating ring (9) to rotate is disposed on the outer side of the support plate (4).

2. The anchor bolt drilling device for main tunnel excavation according to claim 1, characterized in that: The rotating component (15) includes a rotating motor (16) fixed on the base. The output end of the rotating motor (16) is fixedly provided with an output shaft (17). The output shaft (17) passes through the support plate (4) and is rotatably connected to the support plate (4). A gear (18) is fixedly provided at one end of the output shaft (17) away from the rotating motor (16). The outer side of the rotating ring (9) is provided with uniformly distributed external teeth (19). The gear (18) meshes with the external teeth (19).

3. The anchor bolt drilling device for main tunnel excavation according to claim 2, characterized in that: A protective box (20) is fixedly provided on the outside of the support plate (4), and the external tooth (19) and the gear (18) are located inside the protective box (20).

4. The anchor bolt drilling device for main tunnel excavation according to claim 1, characterized in that: The nozzle (7) is an atomizing nozzle.

5. The anchor bolt drilling device for main tunnel excavation according to claim 1, characterized in that: The limiting protrusion (11) is an arc-shaped protrusion, and the connection between the limiting protrusion (11) and the inner side of the limiting plate (10) is arc-shaped.

6. The anchor bolt drilling device for main tunnel excavation according to claim 1, characterized in that: The water outlet pipe (6) is a plastic flexible hose.

7. The anchor bolt drilling device for main tunnel excavation according to claim 3, characterized in that: The protective box (20) is fixedly provided with a support ring (21) on the outside, and the rotating ring (9) is rotatably located inside the support ring (21).

8. The anchor bolt drilling device for main tunnel excavation according to claim 1, characterized in that: The limiting protrusion (11) and the limiting plate (10) are both arc-shaped on the side near the support plate (4).

9. The anchor bolt drilling device for main tunnel excavation according to claim 1, characterized in that: The limiting protrusion (11) and the nozzle (7) are distributed in sequence.

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