Tunnel pipe wall support punching installation mechanical head

Abstract

The invention discloses a tunnel pipe wall support punching installation mechanical head, and belongs to the technical field of tunnel construction, the tunnel pipe wall support punching installation mechanical head comprises a machine body and a base, the lower portion of the machine body is fixedly connected with a connecting seat, and an electric push rod is fixedly installed on the upper portion of the machine body; according to the drilling device, the drilling area is isolated through the isolation cover and the cover shell, chippings and dust generated by drilling are prevented from diffusing outwards to pollute the working environment, meanwhile, noise generated by mechanical vibration and pipe wall breaking in the drilling process is prevented from spreading outwards, damage to hearing of surrounding constructors is reduced, and a safer and cleaner tunnel working space is created; then high-pressure gas is input into the spray head through the gas conveying pipe, the high-pressure gas is sprayed into the interior and the peripheral area of the hole through the spray head, residual scraps and dust in the drilling process are thoroughly blown and cleaned, the situation that the scraps are accumulated in the hole to affect the attachment degree and firmness of follow-up support installation is avoided, loose scum on the surface of the pipe wall is removed, and the service life of the support is prolonged. And the construction efficiency of mounting the tunnel pipe wall bracket is effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of tunnel construction technology, and in particular relates to a mechanical head for drilling and installing tunnel pipe wall supports. Background Technology

[0002] Urban subway tunnel construction typically requires the installation of cable trays and other components on concrete pipe walls. Before installation, drilling is necessary to install these trays. During drilling, a large amount of dust and debris is generated and easily dispersed outwards, polluting the tunnel's interior and posing a health hazard to workers. Furthermore, the vibrations from mechanical operation and the noise generated by pipe wall breakage travel unobstructed, reaching high decibel levels. Prolonged exposure can cause irreversible hearing damage to nearby workers, and flying debris can cause eye and skin injuries. Creating a safe and clean working environment is difficult. After drilling, debris, dust, and loose slag remain inside the holes. Manual cleaning of the holes and surrounding areas requires close proximity, increasing the risks of working at heights and in confined spaces. Therefore, a mechanical head for drilling and installing tunnel wall supports is urgently needed to address these issues. Summary of the Invention

[0003] The purpose of this invention is to address the problems of large amounts of debris and dust easily spreading outwards during drilling, polluting the tunnel construction environment, being easily inhaled by construction workers, and causing high levels of noise that can easily cause irreversible damage to the hearing of surrounding construction workers, as well as the problem of debris, dust, and loose slag remaining inside the borehole affecting subsequent installation. Therefore, this invention proposes a tunnel wall support drilling and installation mechanical head.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A tunnel wall support drilling and installation mechanical head includes a body and a base. A connecting seat is fixedly connected to the lower part of the body, an electric push rod is fixedly installed on the upper part of the body, a drive motor is fixedly installed on one side of the body, a cover is fixedly connected to the upper part of the body, grooves are provided on both the upper and lower parts of the body, and oblique grooves and transverse grooves are provided on the side walls of the groove on the upper part of the body. A hollow rod is fixedly connected inside the body. The output shaft of the drive motor is connected to a threaded rod, and a movable rod is threadedly installed on the threaded rod. One end of the movable rod is fixedly connected to multiple limit blocks, and the other end of the movable rod is fixedly connected to a gear box. A working motor is fixedly installed below the gear box. The output shaft of the working motor is connected to a rotating shaft, and the rotating shaft passes through the gear box and is connected to a main bevel gear. A secondary bevel gear is meshed with one side of the main bevel gear. A connecting rod is fixedly connected to the secondary bevel gear. A magnetic drill chuck is fixedly installed at one end of the connecting rod through the gear box. Multiple telescopic rods are fixedly connected to the cover. An isolation cover is connected to the cover through the telescopic rods. A U-shaped plate is fixedly connected to the movable end of the electric push rod. Guide grooves are provided on both sides of the U-shaped plate. The U-shaped plate is slidably mounted on an installation plate via a guide groove. Slider blocks are fixedly connected to both sides of the installation plate. An air pump is fixedly mounted on the installation plate. An air supply pipe is connected below the air pump. One end of the air supply pipe is connected to a nozzle, which is fixedly mounted on the installation plate.

[0005] As a further description of the above technical solution: The base has multiple fixing holes, and a fixing seat is fixedly connected to the top of the base. The fixing seat has slots on both sides, and the connecting seat is inserted into the fixing seat.

[0006] As a further description of the above technical solution: The connecting seat has a sliding groove, and the connecting seat is slidably connected to the insert plate through the sliding groove. A screw is threadedly connected to one side of the connecting seat. A handwheel is connected to one end of the screw, and a push plate is rotatably connected to the other end of the screw. Push blocks are fixedly connected to both sides of the push plate. The insert plate passes through the connecting seat and is inserted into the slot.

[0007] As a further description of the above technical solution: The insert plate is U-shaped and has multiple push slots on its wall. The push slots are inclined on the insert plate, and the push plate slides in the U-shaped slots of the insert plate. The push block slides in the push slots.

[0008] As a further description of the above technical solution: The transverse groove is located at both ends of the inclined groove and is interconnected with each other. The slider slides within the guide groove, the inclined groove, and the transverse groove.

[0009] As a further description of the above technical solution: The threaded rod is rotatably connected to the machine body and the hollow rod through bearings. The rotating shaft and the connecting rod are rotatably connected to the gear box through bearings. The U-shaped plate slides in the groove and contacts the groove wall.

[0010] As a further description of the above technical solution: One end of the isolation cover is fixedly connected to a corrugated cover made of rubber. A spring is fixedly connected inside the thick end of the telescopic rod. One end of the spring is fixedly connected to the inner wall of the thick end of the telescopic rod, and the other end of the spring is fixedly connected to the thin end of the telescopic rod.

[0011] As a further description of the above technical solution: The movable rod slides inside the hollow rod. Multiple limiting grooves are provided on the inner wall of the hollow rod. Three limiting blocks are arranged in a centrally symmetrical manner, and the limiting blocks slide within the limiting grooves.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, through the contact between the corrugated cover and the pipe wall, the corrugated cover is compressed and deformed, gradually pushing the isolation cover, causing the isolation cover to push and compress the telescopic rod to slide on the cover shell. This isolates the drilling area through the isolation cover and the cover shell, preventing the spread of drilling debris and dust that pollutes the working environment. Simultaneously, it blocks the outward transmission of noise generated by mechanical vibration and pipe wall breakage during drilling, reducing hearing damage to surrounding construction personnel and creating a safer and cleaner tunnel working space. After drilling is completed, the drill bit is pulled out of the hole, and then the electric push rod is activated to move the U-shaped plate, causing the slider to slide from the transverse groove at one end of the inclined groove into the inclined groove. The inclined groove wall then pushes the slider, causing the slider to move the mounting plate down along the guide groove. As the U-shaped plate continues to move, the slider slides from the inclined groove to the other end. The mounting plate and nozzle are moved closer to the drilling area by adjusting the height of the mounting plate and nozzle within the transverse groove. Then, the air pump is activated to supply high-pressure gas into the nozzle through the air supply pipe. The high-pressure gas is sprayed into the hole and surrounding area through the nozzle, thoroughly blowing away the debris and dust remaining from the drilling process. This prevents debris from accumulating in the hole and affecting the fit and stability of the subsequent support installation. At the same time, it removes loose slag from the pipe wall surface, further improving the compatibility between the support and the hole. After the blowing is completed, the electric push rod is activated in the reverse direction to reset the U-shaped plate, causing the slider to slide into the initial transverse groove. During this process, the mounting plate and nozzle are raised and reset, completing the cleaning process after drilling and preparing for the next drilling operation. The entire process requires no manual intervention, effectively improving the construction efficiency of tunnel pipe wall support installation. 2. In this invention, the base is fixed to the robotic arm by screwing bolts into the fixing holes. Then, the connecting seat is pushed into the fixing seat. When the connecting seat and the fixing seat abut, the insert plate and the slot are aligned. At this time, by turning the handwheel to rotate the screw, the screw pushes the push plate to slide in the groove. As the push plate moves, the push block can push the groove wall, causing the insert plate to slide to both sides in the groove and then pass through the connecting seat to insert into the slot. Through the insertion and engagement of the insert plate and the slot, the connecting seat and the fixing seat can be quickly positioned and locked, avoiding loosening or displacement of the connection parts and ensuring the installation stability of the robotic head. After the construction is completed, by turning the handwheel in the opposite direction, the screw and the push plate can be reset, causing the insert plate to retract back into the groove, thereby achieving quick separation of the connecting seat and the fixing seat. This facilitates the disassembly, installation, and maintenance of the robotic head body without the need to retighten multiple bolts, adapting to the flexible needs of multi-position operations in tunnel construction. 3. In this invention, the drive motor is started to drive the threaded rod to rotate inside the hollow rod, causing the movable rod that is threadedly engaged with the threaded rod to slide inside the hollow rod. This allows the movable rod to push the gear box closer to the pipe wall. At this time, the working motor can drive the main bevel gear to rotate through the rotating shaft. The meshing of the main bevel gear and the secondary bevel gear drives the connecting rod, causing the magnetic drill chuck to rotate, thereby completing the drilling and installation work. Afterwards, by reversing the threaded rod, the movable rod is slid back into the hollow rod, thereby removing the drill bit from the hole for easy inspection and cleaning of the hole. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a tunnel wall support drilling and installation mechanical head proposed in this invention; Figure 2 This is a schematic diagram of the cross-sectional structure of a tunnel wall support drilling and installation mechanical head proposed in this invention; Figure 3 This is a schematic cross-sectional view of the connecting seat of the tunnel wall support drilling and installation mechanical head proposed in this invention; Figure 4 This is a three-dimensional structural diagram of the housing of a tunnel wall support drilling and installation mechanical head proposed in this invention; Figure 5 This is a schematic diagram of the cross-sectional structure of a hollow rod for drilling and installing a mechanical head for a tunnel wall support, as proposed in this invention. Figure 6 This is a schematic diagram of the cross-sectional structure of a U-shaped plate for drilling and installing a mechanical head for a tunnel wall support, as proposed in this invention.

[0014] Legend: 1. Body; 2. Base; 3. Connecting seat; 4. Electric push rod; 5. Drive motor; 6. Cover; 7. Groove; 8. Inclined groove; 9. Horizontal groove; 10. Hollow rod; 11. Threaded rod; 12. Movable rod; 13. Limit block; 14. Gearbox; 15. Working motor; 16. Rotating shaft; 17. Main bevel gear; 18. Secondary bevel gear; 19. Connecting rod; 20. Magnetic drill chuck; 21. Telescopic... 21. Rod; 22. Isolation cover; 23. U-shaped plate; 24. Guide groove; 25. Mounting plate; 26. Slider; 27. Air pump; 28. Air supply pipe; 29. ​​Nozzle; 30. Fixing hole; 31. Fixing base; 32. Slot; 33. Slide groove; 34. Insert plate; 35. Screw; 36. Handwheel; 37. Push plate; 38. Push block; 39. Push groove; 40. Corrugated cover; 41. Spring; 42. Limiting groove. Detailed Implementation

[0015] 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 some embodiments of the present invention, and not all embodiments. 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.

[0016] In its specific implementation, such as Figures 1-6 This invention provides a technical solution: a tunnel wall support drilling and installation mechanical head, including a body 1 and a base 2. The base 2 has multiple fixing holes 30, and a fixing seat 31 is fixedly connected to the top of the base 2. The fixing seat 31 has slots 32 on both sides, and a connecting seat 3 is inserted into the fixing seat 31. By screwing bolts into the multiple fixing holes 30, the base 2 can be fixed to the mechanical arm. Then, by adjusting the mechanical arm, the working position of the body 1 can be adjusted. The insertion of the connecting seat 3 and the fixing seat 31 can realize the rapid positioning and docking of the body 1 and the base 2 without complicated alignment process, shortening the overall installation time and improving the assembly efficiency.

[0017] A connecting seat 3 is fixedly connected to the bottom of the body 1. A sliding groove 33 is provided in the connecting seat 3. An insert plate 34 is slidably connected to the connecting seat 3 through the sliding groove 33. A screw 35 is threadedly connected to one side of the connecting seat 3. A handwheel 36 is connected to one end of the screw 35. A push plate 37 is rotatably connected to the other end of the screw 35. Push blocks 38 are fixedly connected to both sides of the push plate 37. The insert plate 34 passes through the connecting seat 3 and is inserted into the slot 32. By rotating the handwheel 36, the screw 35 pushes the push plate 37 to move, causing the push blocks 38 to slide in the push groove 39 and push against the groove wall of the push groove 39, thereby pushing the insert plate 34. The insert plate 34 passes through the connecting seat 3 and is inserted into the slot 32 of the fixed seat 31, thereby realizing the quick locking of the connecting seat 3 and the fixed seat 31. Rotating the handwheel 36 in the opposite direction can quickly unlock the insert plate 34. The operation is convenient and efficient, which greatly improves the disassembly and assembly efficiency of the body 1 and the base 2, and is suitable for the needs of maintenance and repair in tunnel operations.

[0018] The insertion plate 34 has a U-shaped design and multiple push grooves 39 are provided on its wall. The push grooves 39 are inclined on the insertion plate 34. The push plate 37 slides in the U-shaped groove of the insertion plate 34, and the push block 38 slides in the push groove 39. The U-shaped groove of the insertion plate 34 forms a bidirectional limit on the push plate 37, preventing the push plate 37 from shifting or rotating during axial movement, thereby smoothly pushing the insertion plate 34 to achieve the alignment and insertion of the insertion plate 34 with the slot 32 of the fixed seat 31. When the insertion plate 34 slides in the sliding groove 33, the groove wall of the sliding groove 33 can limit and guide the insertion plate 34 to prevent the insertion plate 34 from tilting during movement.

[0019] An electric push rod 4 is fixedly installed on the top of the body 1, a drive motor 5 is fixedly installed on one side of the body 1, and a cover 6 is fixedly connected to the body 1. Grooves 7 are provided on both the top and bottom of the body 1. Inclined grooves 8 and transverse grooves 9 are provided on the two sides of the groove 7 on the top of the body 1. The transverse grooves 9 are located at both ends of the inclined groove 8 and are interconnected. The slider 26 slides in the guide groove 24, the inclined groove 8 and the transverse groove 9. When the U-shaped plate 23 is pushed to slide along the groove 7 of the body 1 by the electric push rod 4, the slider 26 first maintains a straight movement along the transverse groove 9 at one end of the inclined groove 8, and then gradually moves into the inclined groove 8. At this time, due to the inclined guiding effect of the groove wall of the inclined groove 8, the slider 26 can drive the mounting plate 25 to move down along the guide groove 24, and finally move into the transverse groove 9 at the other end of the inclined groove 8 to complete the positioning, so that the nozzle 29 moves down to face the drilling area, and then the hole is cleaned by the high-pressure airflow.

[0020] A hollow rod 10 is fixedly connected inside the body 1. A threaded rod 11 is connected to the output shaft of the drive motor 5. A movable rod 12 is threadedly installed on the threaded rod 11. Multiple limit blocks 13 are fixedly connected to one end of the movable rod 12. The movable rod 12 slides inside the hollow rod 10. Multiple limit grooves 42 are opened on the inner wall of the hollow rod 10. Three limit blocks 13 are arranged in a centrally symmetrical manner. The limit blocks 13 slide in the limit grooves 42. Through the sliding of the limit blocks 13 in the limit grooves 42, the limit grooves 42 can guide and limit the limit blocks 13, so that the movable rod 12 can move smoothly inside the hollow rod 10 and avoid rotational deviation of the movable rod 12 during movement.

[0021] A gearbox 14 is fixedly connected to the other end of the movable rod 12. A working motor 15 is fixedly installed below the gearbox 14. The output shaft of the working motor 15 is connected to a rotating shaft 16. The rotating shaft 16 passes through the gearbox 14 and is connected to a main bevel gear 17. A secondary bevel gear 18 is meshed with one side of the main bevel gear 17. A connecting rod 19 is fixedly connected to the secondary bevel gear 18. A magnetic drill chuck 20 is fixedly installed at one end of the connecting rod 19, passing through the gearbox 14. The threaded rod 11 is rotatably connected to the machine body 1 and the hollow rod 10 through a bearing. The rotating shaft 16 and the connecting rod 19 are connected to the magnetic drill chuck 20. All rods 19 are rotatably connected to the gear box 14 via bearings. The U-shaped plate 23 slides in the groove 7 and contacts the groove wall. The gear box 14 protects and isolates the main bevel gear 17 and the secondary bevel gear 18, preventing debris generated during drilling from hitting the main bevel gear 17 and the secondary bevel gear 18 and causing damage. The contact between the U-shaped plate 23 and the groove wall of the groove 7 can play a sliding guiding role, providing stable support for the movement of the U-shaped plate 23, and preventing the U-shaped plate 23 from shifting laterally, ensuring the smooth movement of the mounting plate 25 and the nozzle 29.

[0022] Multiple telescopic rods 21 are fixedly connected to the cover 6. An isolation cover 22 is connected to the cover 6 via the telescopic rods 21. A corrugated cover 40, made of rubber, is fixedly connected to one end of the isolation cover 22. A spring 41 is fixedly connected inside the thicker end of the telescopic rod 21. One end of the spring 41 is fixedly connected to the inner wall of the thicker end of the telescopic rod 21, and the other end of the spring 41 is fixedly connected to the thinner end of the telescopic rod 21. A U-shaped plate 23 is fixedly connected to the movable end of the electric push rod 4. Guide grooves 24 are provided on both sides of the U-shaped plate 23. An mounting plate 25 is slidably mounted on the U-shaped plate 23 through the guide grooves 24. Slider blocks 26 are fixedly connected to both sides of the mounting plate 25. An air pump 27 is installed, and an air supply pipe 28 is connected below the air pump 27. One end of the air supply pipe 28 is connected to a nozzle 29, which is fixedly installed on the mounting plate 25. When the telescopic rod 21 is pushed and compressed, the elastic preload of the spring 41 can push the thin end of the telescopic rod 21, so that the corrugated cover 40 can fit against the tunnel wall, thereby forming a sealed space to prevent debris and dust generated during drilling from spreading to the surrounding area, thus avoiding dust pollution of the working environment and harm to the health of construction personnel. The corrugated cover 40 made of rubber has flexibility and deformation ability, which can adapt to the curved surface and uneven parts of the tunnel wall, and at the same time buffer the contact to avoid direct impact.

[0023] Working principle: The base 2 is fixed to the robotic arm by screwing bolts into the fixing hole 30. Then, the connecting seat 3 is pushed into the fixing seat 31, causing the connecting seat 3 to abut against the fixing seat 31. At this time, the insertion plate 34 is aligned with the slot 32. Then, the screw 35 is rotated by turning the handwheel 36, causing the screw 35 to push the push plate 37 to slide in the slide groove 33. As the push plate 37 moves, the push block 38 can push the groove wall of the push groove 39, causing the insertion plate 34 to slide to both sides in the slide groove 33, so that the insertion plate 34 gradually passes through the connecting seat 3 and is inserted into the slot 32. By inserting the plate 34 into the slot 32, the connecting seat 3 and the fixed seat 31 can be quickly positioned and locked. Then, the robotic arm is adjusted to bring the body 1 close to the pipe wall. During this process, the corrugated cover 40 will come into contact with the pipe wall and be squeezed and deformed, gradually pushing the isolation cover 22. This causes the isolation cover 22 to push and compress the telescopic rod 21 to slide on the cover 6. Then, the working motor 15 is started, which drives the main bevel gear 17 to rotate through the rotating shaft 16. The meshing of the main bevel gear 17 and the secondary bevel gear 18 drives the connecting rod 19, causing the magnetic drill chuck 20 to rotate, thereby causing the drilling tool mounted on the magnetic drill chuck 20 to rotate. The drive motor 5 is then started to drive the threaded rod 11 to rotate inside the hollow rod 10, causing the movable rod 12 to slide inside the hollow rod 10. This allows the movable rod 12 to push the gear box 14 to bring the drill bit close to the pipe wall to complete the drilling work. During the process, the isolation cover 22 and the cover 6 can isolate the drilling area, thereby preventing the debris and dust generated during drilling from spreading outward and polluting the working environment. At the same time, it blocks the noise generated by mechanical vibration and pipe wall breakage during the drilling process from spreading outward, reducing the damage to the hearing of the surrounding construction personnel and creating a safer and cleaner tunnel working space. After the drilling is completed, the drive motor 5 reverses the threaded rod 11, causing the movable rod 12 to slide back into the hollow rod 10, thereby removing the drill bit from the hole. Then, the electric push rod 4 is activated to push the U-shaped plate 23 to move in the groove 7, causing the slider 26 to slide from the transverse groove 9 at one end of the inclined groove 8 into the inclined groove 8. The slider 26 is then pushed by the groove wall of the inclined groove 8, causing the slider 26 to drive the mounting plate 25 to move down along the guide groove 24. As the U-shaped plate 23 continues to move, the slider 26 will slide from the inclined groove 8 into the transverse groove 9 at the other end, thereby changing the height of the mounting plate 25 and the nozzle 29. The nozzle 29 is brought close to the drilling area. Then, the air pump 27 is activated, which supplies high-pressure gas into the nozzle 29 through the air supply pipe 28. The high-pressure gas is sprayed through the nozzle 29 into the hole and surrounding area, thoroughly blowing away the debris and dust remaining during the drilling process. This prevents debris from accumulating in the hole and affecting the fit and stability of the subsequent bracket installation. At the same time, it removes loose scum from the pipe wall surface. After the blowing is completed, the electric push rod 4 is activated in the reverse direction to reset the U-shaped plate 23, causing the slider 26 to slide into the initial transverse groove 9. During the process, the mounting plate 25 and the nozzle 29 are raised and reset, which not only completes the cleaning process after drilling but also prepares the area for the next drilling operation.

Claims

1. A drilling and installation machine head for tunnel wall supports, characterized in that, include: The machine body (1) and the base (2) are connected. A connecting seat (3) is fixedly connected to the bottom of the machine body (1). An electric push rod (4) is fixedly installed on the top of the machine body (1). A drive motor (5) is fixedly installed on one side of the machine body (1). A cover (6) is fixedly connected to the top of the machine body (1). Grooves (7) are opened on both the top and bottom of the machine body (1). Inclined grooves (8) and transverse grooves (9) are opened on both sides of the groove (7) on the top of the machine body (1). A hollow rod (10) is fixedly connected inside the machine body (1). The output shaft of the drive motor (5) is connected to a threaded rod (11), and a movable rod (12) is threadedly installed on the threaded rod (11). One end of the movable rod (12) is fixedly connected to a plurality of limit blocks (13), and the other end of the movable rod (12) is fixedly connected to a gear box (14). A working motor (15) is fixedly installed below the gear box (14), and the output shaft of the working motor (15) is connected to a rotating shaft (16). The rotating shaft (16) passes through the gear box (14) and is connected to a main bevel gear (17). A secondary bevel gear (18) is meshed with one side of the main bevel gear (17). A connecting rod (19) is fixedly connected to the secondary bevel gear (18). One end of the connecting rod (19) passes through the gear box (14) and is fixedly installed with a magnetic drill chuck (20). Multiple telescopic rods (21) are fixedly connected to the cover (6). An isolation cover (22) is connected to the cover (6) through the telescopic rods (21). A U-shaped plate (23) is fixedly connected to the movable end of the electric push rod (4). Guide grooves (24) are provided on both sides of the U-shaped plate (23). The U-shaped plate (23) is slidably mounted with an installation plate (25) via a guide groove (24). Slider blocks (26) are fixedly connected to both sides of the installation plate (25). An air pump (27) is fixedly mounted on the installation plate (25). An air supply pipe (28) is connected below the air pump (27). A nozzle (29) is connected to one end of the air supply pipe (28). The nozzle (29) is fixedly mounted on the installation plate (25).

2. The tunnel wall support drilling and installation mechanical head according to claim 1, characterized in that, The base (2) has multiple fixing holes (30), and a fixing seat (31) is fixedly connected above the base (2). The fixing seat (31) has slots (32) on both sides, and the connecting seat (3) is inserted into the fixing seat (31).

3. The tunnel wall support drilling and installation mechanical head according to claim 2, characterized in that, The connecting seat (3) has a sliding groove (33) inside. The connecting seat (3) is slidably connected to the insert plate (34) through the sliding groove (33). A screw (35) is threadedly connected to one side of the connecting seat (3). A handwheel (36) is connected to one end of the screw (35). A push plate (37) is rotatably connected to the other end of the screw (35). Push blocks (38) are fixedly connected to both sides of the push plate (37). The insert plate (34) passes through the connecting seat (3) and is inserted into the slot (32).

4. The tunnel wall support drilling and installation mechanical head according to claim 3, characterized in that, The insert plate (34) is U-shaped and has multiple push grooves (39) on its wall. The push grooves (39) are inclined on the insert plate (34). The push plate (37) slides in the U-shaped groove of the insert plate (34) and the push block (38) slides in the push groove (39).

5. The tunnel wall support drilling and installation mechanical head according to claim 1, characterized in that, The transverse groove (9) is provided at both ends of the inclined groove (8) and is interconnected. The slider (26) slides in the guide groove (24), the inclined groove (8) and the transverse groove (9).

6. The tunnel wall support drilling and installation mechanical head according to claim 1, characterized in that, The threaded rod (11) is rotatably connected to the machine body (1) and the hollow rod (10) through bearings. The rotating shaft (16) and the connecting rod (19) are rotatably connected to the gear box (14) through bearings. The U-shaped plate (23) slides in the groove (7) and contacts the groove wall.

7. The tunnel wall support drilling and installation mechanical head according to claim 1, characterized in that, One end of the isolation cover (22) is fixedly connected to a corrugated cover (40), which is made of rubber. A spring (41) is fixedly connected inside the thick end of the telescopic rod (21). One end of the spring (41) is fixedly connected to the inner wall of the thick end of the telescopic rod (21), and the other end of the spring (41) is fixedly connected to the thin end of the telescopic rod (21).

8. The tunnel wall support drilling and installation mechanical head according to claim 1, characterized in that, The movable rod (12) slides inside the hollow rod (10). Multiple limiting grooves (42) are provided on the inner wall of the hollow rod (10). Three limiting blocks (13) are arranged in a centrally symmetrical manner. The limiting blocks (13) slide inside the limiting grooves (42).

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