Positionable guiding drilling mechanism for tunnel construction

Abstract

The application discloses a tunnel construction positioning and guiding drilling mechanism and relates to the technical field of tunnel construction machines.The tunnel construction positioning and guiding drilling mechanism comprises a crawler trolley, a rotary platform installed on the top of the crawler trolley, two hydraulic support assemblies arranged at one end of the top of the crawler trolley, a main arm mechanism arranged on the top of the rotary platform, a support mechanism arranged on the top of the main arm mechanism, a rack mechanism arranged at one end of the top of the main arm mechanism, and a drill rod mechanism arranged on the top of the rack mechanism. One end of the rack mechanism is provided with a triangular positioning mechanism for positioning the end of the drill rod. The inside of the rack mechanism is provided with a drill rod guiding mechanism. The triangular positioning mechanism is arranged to position the end of the drill rod from the outside by using the principle of triangular positioning, to limit the end of the drill rod from deviating at multiple angles, to improve the drilling precision, and to improve the drilling efficiency.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction machinery technology, specifically to a positioning and guiding drilling mechanism for tunnel construction. Background Technology

[0002] During tunnel construction, numerous drilling operations are often required in the surrounding rock, support structure, or initial support surface, such as for anchor bolt holes, grouting holes, detection holes, drainage holes, and blasting holes. The core of a positioning and guiding drilling mechanism for tunnel construction is to address the technical requirements of precise borehole positioning, spatial attitude control, and long-distance trajectory correction within the tunnel, adapting to key processes such as advanced support, geological exploration, blasting holes, and anchor bolt / anchor cable holes.

[0003] When using existing positioning and guiding drilling mechanisms for tunnel construction, the construction personnel usually rely on their experience to determine the hole position, angle, and depth, then install relevant support structures to confirm the construction location, and use the support structures to limit the drill rod, thereby achieving the purpose of positioning and guiding the drilling.

[0004] However, existing positioning and guiding drilling mechanisms for tunnel construction have the following shortcomings:

[0005] Existing positioning and guiding drilling mechanisms for tunnel construction cannot effectively position the end of the drill rod during drilling, which can lead to misalignment of the drill bit end when drilling different types of rock, resulting in borehole deviation, affecting construction efficiency, and failing to meet actual usage requirements.

[0006] Therefore, we propose a positioning and guiding drilling mechanism for tunnel construction to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a positioning and guiding drilling mechanism for tunnel construction. By setting up a triangular positioning mechanism, the end of the drill rod is positioned from the outside using the principle of triangular positioning, and the displacement of the end of the drill rod is restricted from multiple angles, thereby improving drilling accuracy and efficiency, and solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a positioning and guiding drilling mechanism for tunnel construction, comprising a tracked trolley;

[0009] A slewing platform is mounted on top of the tracked trolley;

[0010] Both hydraulic support assemblies are located at one end of the top of the tracked trolley;

[0011] The main boom mechanism is located on top of the rotary platform;

[0012] A support mechanism is located at the top of the main boom mechanism;

[0013] A platform mechanism is located at the top of one end of the main boom mechanism;

[0014] The drill rod mechanism is located on top of the platform mechanism;

[0015] One end of the test bench mechanism is provided with a triangular positioning mechanism for positioning the end of the drill rod. The inside of the test bench mechanism is provided with a drill rod guiding mechanism for guiding the body of the drill rod. The inside of the test bench mechanism is provided with a drill bit guiding mechanism for guiding and positioning the drill bit.

[0016] The triangular positioning mechanism includes a connecting frame disposed on the outside of the platform mechanism. Both ends of the connecting frame are rotatably connected to a first connecting arm. One end of each first connecting arm is rotatably connected to a telescopic frame. Limiting sleeves are provided on the outside of the two telescopic frames. The top of each telescopic frame is rotatably connected to a second connecting arm. One side of each second connecting arm is equipped with a first connecting frame. One end of each first connecting frame is connected to a first arc-shaped positioning sleeve.

[0017] Preferably, the triangular positioning mechanism further includes a movable frame, which is rotatably connected to one end of two second connecting arms. A second connecting frame is installed at the bottom of the movable frame, and a second arc-shaped positioning sleeve is connected to the bottom of the second connecting frame.

[0018] Preferably, the drill pipe guiding mechanism includes a guide rod disposed inside the test bench mechanism. A first spring is sleeved on the outer side of the guide rod, and a first sliding seat is slidably mounted on the outer side of the guide rod. A connecting rod is connected to one side of the first sliding seat, and a second sliding seat is connected to one end of the connecting rod. A set of brackets is mounted on the top of both the first and second sliding seats, and a guide sleeve is mounted on the top of each set of brackets.

[0019] Preferably, the drill bit guiding mechanism includes a U-shaped frame, which is installed inside the frame mechanism. Both ends of the U-shaped frame are provided with limit plates. A pull ring is installed on one side of each limit plate, and two movable rods are connected to the other side of each limit plate. One end of each pair of movable rods movably passes through the U-shaped frame and is connected to a trapezoidal block. A slot block is provided on the outer side of each trapezoidal block, and a conical guide cylinder is installed between two slot blocks. A second spring is sleeved on the outer side of each movable rod.

[0020] Preferably, the main boom mechanism includes an ear seat, which is installed on the top of the rotary platform. A servo motor is installed on one side of the ear seat, and the output end of the servo motor passes through the ear seat and is connected to the main boom body. One end of the main boom body is rotatably connected to a support seat.

[0021] Preferably, the support mechanism includes a first connecting seat, which is mounted on the top of the main boom body. A hydraulic telescopic rod is rotatably connected inside the first connecting seat, and a second connecting seat is rotatably connected to one end of the hydraulic telescopic rod.

[0022] Preferably, the test bench mechanism includes a test bench body, which is mounted on the top of the support. A fixed guide rail is mounted on the top of the test bench body, and a slide is slidably mounted on the outer side of the fixed guide rail. A second hydraulic cylinder is mounted on one end of the test bench body, and the output end of the second hydraulic cylinder movably passes through the test bench body and is connected to the slide.

[0023] Preferably, the drill rod mechanism includes a drive motor, which is mounted on the top of the slide table. The output end of the drive motor is connected to a connector, and one end of the connector is connected to the drill rod body.

[0024] Preferably, the hydraulic support assembly includes a first hydraulic cylinder, which is mounted on one end of the top of the tracked vehicle, and the output end of the first hydraulic cylinder extends through the tracked vehicle and is connected to a support seat.

[0025] Preferably, both guide sleeves are fitted onto the outside of the drill pipe body, and the inner diameter of the guide sleeve is slightly larger than the outer diameter of the drill pipe body.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. This invention, by incorporating a triangular positioning mechanism, utilizes the basic principles of triangular positioning to precisely position the drill rod end from its outer side. This triangular positioning mechanism can effectively constrain the drill rod end from multiple different angles, preventing unnecessary displacement during operation. This method not only significantly improves the accuracy of the drilling process, making the drilling position more precise, but also greatly enhances drilling efficiency, allowing the entire drilling operation to be completed more quickly. It meets the needs of various practical application scenarios and possesses high practical value and reliability.

[0028] 2. This invention, by setting up a drill rod guiding mechanism, can effectively and precisely guide the drill rod body. This drill rod guiding mechanism can greatly prevent the drill rod body from shifting or misaligning during operation, ensuring that the drill rod always runs stably in the predetermined direction. At the same time, the drill rod guiding mechanism can also provide multiple support points for the drill rod. These support points are evenly distributed in different parts of the drill rod, so that the overall force on the drill rod can be reasonably distributed when it is subjected to external forces. Through this multi-point support and force distribution method, the risk of drill rod breakage due to excessive local stress can be significantly reduced, thereby extending the service life of the drill rod. Moreover, the stable operation and long service life of the drill rod are of vital importance to ensuring the safety of the entire construction process, ensuring that construction can be carried out smoothly in a safe and reliable environment.

[0029] 3. This invention incorporates a drill bit guiding mechanism, which effectively guides the drill bit, ensuring it accurately enters the pre-set drilling position during operation. Because the drill bit reaches the target position precisely under the guidance of this mechanism, drilling accuracy is greatly improved, ensuring reliable drilling quality. Furthermore, the drill bit guiding mechanism uses a snap-fit ​​installation method. When the conical guide cylinder needs to be disassembled and replaced, the snap-fit ​​installation greatly simplifies the operation, eliminating the need for the large amount of manpower and time required by traditional complex installation methods. In practice, this effectively reduces the difficulty of manual operation and the workload of operators. Moreover, in the long run, this convenience also saves on subsequent maintenance costs, bringing greater economic benefits to enterprises or users. Attached Figure Description

[0030] Figure 1 This is a perspective view of the main structure of a positioning and guiding drilling mechanism for tunnel construction according to the present invention.

[0031] Figure 2 This is a three-dimensional side view of a positioning and guiding drilling mechanism for tunnel construction according to the present invention.

[0032] Figure 3 This is a three-dimensional view of a partial structure of a positioning and guiding drilling mechanism for tunnel construction according to the present invention;

[0033] Figure 4 This is a three-dimensional view of a portion of the structure of a positioning and guiding drilling mechanism for tunnel construction according to the present invention;

[0034] Figure 5 This is an enlarged perspective view of the drill rod mechanism in a positioning and guiding drilling mechanism for tunnel construction according to the present invention.

[0035] Figure 6This is an enlarged perspective view of the triangular positioning mechanism in a positioning and guiding drilling mechanism for tunnel construction according to the present invention.

[0036] Figure 7 This is an enlarged perspective view of the drill rod guiding mechanism in a positioning and guiding drilling mechanism for tunnel construction according to the present invention;

[0037] Figure 8 This is an enlarged perspective view of a drill bit guiding mechanism for positioning and guiding drilling in tunnel construction according to the present invention.

[0038] In the diagram: 1. Tracked trolley; 2. Rotary platform; 3. First hydraulic cylinder; 4. Support seat; 5. Main boom mechanism; 501. Ear seat; 502. Servo motor; 503. Main boom body; 504. Support seat; 6. Support mechanism; 601. First connecting seat; 602. Hydraulic telescopic rod; 603. Second connecting seat; 7. Platform mechanism; 701. Platform body; 702. Fixed guide rail; 703. Slide table; 704. Second hydraulic cylinder; 8. Drill rod mechanism; 801. Drive motor; 802. Connector; 803. Drill rod body; 9. Triangular positioning mechanism; 901. Connecting frame; 902. First connecting arm; 903. Telescopic frame; 904. Limiting device. 905. Sleeve frame; 906. Second connecting arm; 907. Movable frame; 908. First connecting frame; 909. First arc-shaped positioning sleeve; 910. Second connecting frame; 911. Second arc-shaped positioning sleeve; 10. Drill pipe guiding mechanism; 1001. Guide rod; 1002. First spring; 1003. First sliding seat; 1004. Connecting rod; 1005. Second sliding seat; 1006. Bracket; 1007. Guide sleeve; 11. Drill bit guiding mechanism; 1101. U-shaped frame; 1102. Limiting plate; 1103. Pull ring; 1104. Movable rod; 1105. Trapezoidal block; 1106. Slot block; 1107. Conical guide cylinder; 1108. Second spring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see the appendix Figure 1 -Appendix Figure 8 As shown, the present invention provides a technical solution: a positioning and guiding drilling mechanism for tunnel construction, including a tracked trolley 1;

[0041] The slewing platform 2 is mounted on top of the tracked trolley 1;

[0042] Both hydraulic support assemblies are located at one end of the top of the tracked trolley 1;

[0043] The main boom mechanism 5 is located on top of the rotary platform 2;

[0044] Support mechanism 6 is located on top of main boom mechanism 5;

[0045] The platform mechanism 7 is located at the top of one end of the main boom mechanism 5;

[0046] The drill rod mechanism 8 is located on top of the platform mechanism 7;

[0047] A triangular positioning mechanism 9 is provided at one end of the test bench mechanism 7 for positioning the end of the drill rod. A drill rod guiding mechanism 10 is provided inside the test bench mechanism 7 for guiding the body of the drill rod. A drill bit guiding mechanism 11 is provided on the inner side of the test bench mechanism 7 for guiding and positioning the drill bit.

[0048] The triangular positioning mechanism 9 includes a connecting frame 901, which is located on the outside of the platform mechanism 7. Both ends of the connecting frame 901 are rotatably connected to first connecting arms 902. One end of each first connecting arm 902 is rotatably connected to a telescopic frame 903. Limiting sleeves 904 are provided on the outer sides of the two telescopic frames 903. A second connecting arm 905 is rotatably connected to the top of each telescopic frame 903. A first connecting frame 907 is installed on one side of each second connecting arm 905. One end of each first connecting frame 907 is connected to a first arc-shaped positioning sleeve 908. Through the triangular positioning mechanism 9, the drill rod guiding mechanism 10, and the drill bit guiding mechanism 11, multi-angle limiting of the drill rod end can be achieved, thereby improving drilling accuracy. Simultaneously, the drill rod guiding mechanism 10 guides the drill rod body and distributes its force, ensuring the stability of the drill rod during operation. The drill bit guiding mechanism 11 positions and guides the drill bit, ensuring that the drill bit can accurately enter the drilling position, further improving drilling accuracy.

[0049] according to Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, the triangular positioning mechanism 9 also includes a movable frame 906, which is rotatably connected to one end of each of the two second connecting arms 905. A second connecting frame 909 is mounted on the bottom of the movable frame 906, and a second arc-shaped positioning sleeve 910 is connected to the bottom of the second connecting frame 909. Through the triangular positioning mechanism 9, the basic principle of triangular positioning can be applied to accurately position the drill rod end from the outer side of the drill rod. This triangular positioning mechanism can effectively restrict the drill rod end from multiple different angles, preventing unnecessary displacement during operation. This method not only greatly improves the accuracy of the drilling process, making the drilling position more precise, but also significantly increases drilling efficiency, allowing the entire drilling operation to be completed more quickly. It can meet the needs of various practical application scenarios and has high practical value and reliability.

[0050] according to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, the drill pipe guiding mechanism 10 includes a guide rod 1001, which is disposed inside the frame mechanism 7. A first spring 1002 is sleeved on the outer side of the guide rod 1001, and a first sliding seat 1003 is slidably mounted on the outer side of the guide rod 1001. A connecting rod 1004 is connected to one side of the first sliding seat 1003, and a second sliding seat 1005 is connected to one end of the connecting rod 1004. A set of brackets 1006 is mounted on the top of both the first sliding seat 1003 and the second sliding seat 1005, and a guide sleeve 1007 is mounted on the top of each set of brackets 1006. Through the arrangement of the drill pipe guiding mechanism 10, the drill pipe body can be effectively and accurately guided. This structure can greatly prevent the drill rod from shifting or misaligning during operation, ensuring that the drill rod always runs stably in the predetermined direction. At the same time, the drill rod guide mechanism 10 can also provide multiple support points for the drill rod. These support points are evenly distributed in different parts of the drill rod, so that the overall force on the drill rod can be reasonably distributed when it is subjected to external forces. Through this multi-point support and force distribution method, the risk of drill rod breakage due to excessive local stress can be significantly reduced, thereby extending the service life of the drill rod. Moreover, the stable operation and long service life of the drill rod are of vital importance to ensuring the safety of the entire construction process, ensuring that construction can be carried out smoothly in a safe and reliable environment.

[0051] according to Figure 1 , Figure 2 , Figure 4 and Figure 8As shown, the drill bit guiding mechanism 11 includes a U-shaped frame 1101, which is installed inside the frame mechanism 7. Limiting plates 1102 are provided at both ends of the U-shaped frame 1101. A pull ring 1103 is installed on one side of each limiting plate 1102, and two movable rods 1104 are connected to the other side of each limiting plate 1102. One end of each pair of movable rods 1104 movably passes through the U-shaped frame 1101 and is connected to a trapezoidal block 1105. A slotted block 1106 is fitted on the outer side of each trapezoidal block 1105, and a conical guide cylinder 1107 is installed between the two slotted blocks 1106. A second spring 1108 is sleeved on the outer side of each movable rod 1104. Through the arrangement of the drill bit guiding mechanism 11, the drill bit can be effectively guided, ensuring that the drill bit accurately enters the pre-set drilling position during operation. Because the drill bit can accurately reach the target position under the guidance of the guide mechanism, the drilling accuracy is greatly improved, ensuring the reliable quality of the drilling operation. Meanwhile, the drill bit guide mechanism adopts a snap-fit ​​installation method in its structural design. When the tapered guide cylinder needs to be disassembled and replaced, the snap-fit ​​installation makes the operation extremely simple, eliminating the need for the large amount of manpower and time required by traditional complex installation methods. In actual operation, this effectively reduces the difficulty of manual operation and the workload of operators. Furthermore, in the long run, this convenience can also save on later maintenance costs, bringing greater economic benefits to enterprises or users.

[0052] according to Figure 1 , Figure 2 and Figure 3 As shown, the main boom mechanism 5 includes an ear seat 501, which is installed on the top of the rotary platform 2. A servo motor 502 is installed on one side of the ear seat 501. The output end of the servo motor 502 passes through the ear seat 501 and is connected to the main boom body 503. One end of the main boom body 503 is rotatably connected to a support seat 504. Through the setting of the main boom mechanism 5, the main support for the drill rod stand can be provided, and the pitch angle can be flexibly adjusted according to the needs to adapt to different drilling requirements.

[0053] according to Figure 1 , Figure 2 and Figure 3 As shown, the support mechanism 6 includes a first connecting seat 601, which is installed on the top of the main boom body 503. A hydraulic telescopic rod 602 is rotatably connected inside the first connecting seat 601, and a second connecting seat 603 is rotatably connected to one end of the hydraulic telescopic rod 602. By setting up the support mechanism 6, stable support can be provided for the drill rod stand, preventing excessive displacement of the drill rod stand during drilling and effectively improving the overall stability of the device.

[0054] according to Figure 1, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the test bench mechanism 7 includes a test bench body 701, which is mounted on the top of the support 504. A fixed guide rail 702 is mounted on the top of the test bench body 701, and a slide table 703 is slidably mounted on the outer side of the fixed guide rail 702. A second hydraulic cylinder 704 is mounted on one end of the test bench body 701. The output end of the second hydraulic cylinder 704 passes through the test bench body 701 and is connected to the slide table 703. Through the setting of the test bench mechanism 7, a stable advancing and retracting force can be provided for drilling, ensuring the stable operation of drilling.

[0055] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the drill rod mechanism 8 includes a drive motor 801, which is mounted on the top of the slide table 703. The output end of the drive motor 801 is connected to a connector 802, and one end of the connector 802 is connected to the drill rod body 803. By setting up the drill rod mechanism 8, the drill rod can be driven to drill holes in the rock wall inside the tunnel, thereby ensuring construction efficiency.

[0056] according to Figure 1 , Figure 2 and Figure 3 As shown, the hydraulic support assembly includes a first hydraulic cylinder 3, which is installed at one end of the top of the tracked trolley 1. The output end of the first hydraulic cylinder 3 moves through the tracked trolley 1 and is connected to a support seat 4. By setting up the hydraulic support assembly, stable support can be provided for the entire device, preventing displacement of the device during drilling, thereby improving drilling accuracy and ensuring the safety of construction personnel.

[0057] according to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, both guide sleeves 1007 are fitted on the outside of the drill rod body 803. The inner diameter of the guide sleeve 1007 is slightly larger than the outer diameter of the drill rod body 803. Through the above arrangement, efficient and stable guidance can be provided for the drill rod, while preventing excessive friction between the drill rod and the guide structure, thereby extending the overall service life of the mechanism.

[0058] Working principle: First, the drilling location is confirmed and marked according to the construction requirements. Then, the tracked trolley 1 is used to drive the device to the designated construction location. The two first hydraulic cylinders 3 are activated to push the corresponding support seats 4 to press on the ground, providing stable support for the entire device.

[0059] During the angle adjustment phase, firstly, the rotary platform 2 is started, which drives the main boom mechanism 5 and the platform mechanism 7 to rotate as a whole, so that the platform mechanism 7 is at the same angle as the marked drilling position. Next, the servo motor 502 is started, which drives the main boom body 503 to rotate, causing the platform mechanism 7 to rise to a suitable height. Then, the hydraulic telescopic rod 602 is started, which extends and retracts, pushing the platform mechanism 7 to rotate, so that the platform mechanism 7 is on the same horizontal line as the marked drilling position.

[0060] During the rod guiding stage, firstly, the second hydraulic cylinder 704 is activated, which pushes the slide 703 to slide along the fixed guide rail 702, causing the drill rod body 803 to be inserted into and pass through the two guide sleeves 1007 in sequence. Then, during the sliding process, the slide 703 pushes the second sliding seat 1005 to drive the first sliding seat 1003 to slide synchronously along the guide rod 1001, causing the two guide sleeves 1007 to continuously provide guidance for the drill rod body 803. Then, when the slide 703 returns to its original position, the compressed first spring 1002 rebounds, pushing the first sliding seat 1003 and the second sliding seat 1005 to slide and reset along the guide rod 1001.

[0061] During the drill bit guiding stage, firstly, the conical guide cylinder 1107 is pressed down, causing the two slot blocks 1106 to press against the corresponding trapezoidal block 1105 at an angle. This causes the movable rod 1104 to slide the limiting plate 1102 outward and compress the second spring 1108 to contract. When the lower end of the conical guide cylinder 1107 abuts against the bottom of the inner side of the U-shaped frame 1101, the second spring 1108 rebounds, pushing the trapezoidal block 1105 into the slot block 1106, thereby fixing the conical guide cylinder 1107 in place. Then, when the second hydraulic cylinder 704 pushes the slide table 703 to slide along the fixed guide rail 702, the drill bit part of the drill rod body 803 is positioned and guided by the conical guide cylinder 1107, accurately passing through one end of the frame body 701 to reach the drilling point.

[0062] During the drill rod end positioning stage, firstly, when the end portion of the drill rod body 803 passes through the platform body 701, two first arc-shaped positioning sleeves 908 fit against its outer side, providing positioning for the end portion of the drill rod body 803. Next, the drive motor 801 is started to drive the drill rod body 803 to drill at the marked position. Simultaneously, the second hydraulic cylinder 704 pushes the slide table 703 to slide along the fixed guide rail 702, causing the drill rod body 803 to gradually penetrate deeper into the borehole. During this process, the first sliding seat 1003 drives the connecting frame. The frame 901 slides along the frame body 701. The first connecting arm 902 rotates and drives the telescopic frame 903 to slide slowly within the limiting sleeve 904, causing the second connecting arm 905 to rotate and drive the movable frame 906 to descend. The two first arc-shaped positioning sleeves 908 release the positioning of the drill rod body 803, and the descent of the movable frame 906 drives the second arc-shaped positioning sleeve 910 to descend above the drill rod body 803, limiting it and preventing the drill rod body 803 from moving during drilling, which would cause the drilling path to deviate.

[0063] By following the instructions above, you can complete the use of the positioning and guiding drilling mechanism for tunnel construction.

[0064] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A positioning and guiding drilling mechanism for tunnel construction, characterized in that: Including tracked vehicles (1); A slewing platform (2) is installed on top of the tracked trolley (1); Both hydraulic support assemblies are located at one end of the top of the tracked trolley (1); The main boom mechanism (5) is located on top of the rotary platform (2); A support mechanism (6) is provided on top of the main boom mechanism (5); The platform mechanism (7) is located at the top of one end of the main boom mechanism (5); The drill rod mechanism (8) is located on top of the platform mechanism (7); One end of the frame mechanism (7) is provided with a triangular positioning mechanism (9) for positioning the end of the drill rod. The inside of the frame mechanism (7) is provided with a drill rod guide mechanism (10) for guiding the body of the drill rod. The inside of the frame mechanism (7) is provided with a drill bit guide mechanism (11) for guiding and positioning the drill bit. The triangular positioning mechanism (9) includes a connecting frame (901), which is located on the outside of the platform mechanism (7). Both ends of the connecting frame (901) are rotatably connected to a first connecting arm (902). One end of each first connecting arm (902) is rotatably connected to a telescopic frame (903). Limiting sleeves (904) are provided on the outside of the two telescopic frames (903). The top of each telescopic frame (903) is rotatably connected to a second connecting arm (905). One side of each second connecting arm (905) is equipped with a first connecting frame (907). One end of each first connecting frame (907) is connected to a first arc-shaped positioning sleeve (908).

2. The positioning and guiding drilling mechanism for tunnel construction according to claim 1, characterized in that: The triangular positioning mechanism (9) also includes a movable frame (906), which is rotatably connected to one end of two second connecting arms (905). A second connecting frame (909) is installed at the bottom of the movable frame (906), and a second arc-shaped positioning sleeve (910) is connected to the bottom of the second connecting frame (909).

3. The positioning and guiding drilling mechanism for tunnel construction according to claim 1, characterized in that: The drill pipe guiding mechanism (10) includes a guide rod (1001), which is located inside the frame mechanism (7). A first spring (1002) is sleeved on the outside of the guide rod (1001), and a first sliding seat (1003) is slidably installed on the outside of the guide rod (1001). A connecting rod (1004) is connected to one side of the first sliding seat (1003), and a second sliding seat (1005) is connected to one end of the connecting rod (1004). A set of brackets (1006) is installed on the top of both the first sliding seat (1003) and the second sliding seat (1005), and a guide sleeve (1007) is installed on the top of each set of brackets (1006).

4. The positioning and guiding drilling mechanism for tunnel construction according to claim 1, characterized in that: The drill bit guiding mechanism (11) includes a U-shaped frame (1101), which is installed on the inner side of the frame mechanism (7). Both ends of the U-shaped frame (1101) are provided with limit plates (1102). Each limit plate (1102) is equipped with a pull ring (1103) on one side. Each limit plate (1102) is connected to two movable rods (1104) on the other side. One end of each pair of movable rods (1104) is movably inserted through the U-shaped frame (1101) and connected to a trapezoidal block (1105). Each trapezoidal block (1105) is fitted with a slot block (1106) on its outer side. A conical guide cylinder (1107) is installed between the two slot blocks (1106). Each movable rod (1104) is fitted with a second spring (1108) on its outer side.

5. The positioning and guiding drilling mechanism for tunnel construction according to claim 1, characterized in that: The main boom mechanism (5) includes an ear seat (501), which is installed on the top of the rotary platform (2). A servo motor (502) is installed on one side of the ear seat (501). The output end of the servo motor (502) passes through the ear seat (501) and is connected to the main boom body (503). One end of the main boom body (503) is rotatably connected to a support seat (504).

6. The positioning and guiding drilling mechanism for tunnel construction according to claim 5, characterized in that: The support mechanism (6) includes a first connecting seat (601), which is installed on the top of the main boom body (503). A hydraulic telescopic rod (602) is rotatably connected inside the first connecting seat (601), and a second connecting seat (603) is rotatably connected to one end of the hydraulic telescopic rod (602).

7. The positioning and guiding drilling mechanism for tunnel construction according to claim 5, characterized in that: The test bench mechanism (7) includes a test bench body (701), which is mounted on the top of the support (504). A fixed guide rail (702) is mounted on the top of the test bench body (701), and a slide table (703) is slidably mounted on the outer side of the fixed guide rail (702). A second hydraulic cylinder (704) is mounted on one end of the test bench body (701), and the output end of the second hydraulic cylinder (704) moves through the test bench body (701) and is connected to the slide table (703).

8. The positioning and guiding drilling mechanism for tunnel construction according to claim 7, characterized in that: The drill rod mechanism (8) includes a drive motor (801), which is mounted on the top of the slide (703). The output end of the drive motor (801) is connected to a connector (802), and one end of the connector (802) is connected to the drill rod body (803).

9. The positioning and guiding drilling mechanism for tunnel construction according to claim 1, characterized in that: The hydraulic support assembly includes a first hydraulic cylinder (3), which is installed at one end of the top of the tracked vehicle (1). The output end of the first hydraulic cylinder (3) extends through the tracked vehicle (1) and is connected to a support seat (4).

10. The positioning and guiding drilling mechanism for tunnel construction according to claim 3, characterized in that: Both guide sleeves (1007) are fitted on the outside of the drill pipe body (803), and the inner diameter of the guide sleeve (1007) is slightly larger than the outer diameter of the drill pipe body (803).

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