A pneumatic anchor drill

Abstract

The application discloses a pneumatic anchor rod drilling machine and relates to the field of anchor rod drilling machines, which comprises a caterpillar vehicle, an angle adjusting mechanism, a bearing frame and a drill rod holder. The inner side of the bearing frame is movably provided with a moving table through a sliding rod. The side of the moving table is connected with a first telescopic assembly. The top of the moving table is provided with a power device. The end of the power device is provided with a drill bit sleeve. The bottom of the bearing frame is movably provided with a lifting table through a bearing column. The top of the lifting table is connected with a second telescopic assembly. The top of the lifting table is provided with a drill rod cabin. The drill rod cabin is used for storing and automatically connecting drill rods, thereby improving the working efficiency of the anchor rod drilling machine. The drill rod cabin mainly comprises a rotating rod, a first bearing disc and a second bearing disc which are externally installed on the rotating rod. The radial outer sides of the first bearing disc and the second bearing disc are movably provided with a plurality of clamping assemblies through springs. Each clamping assembly is used for fixing a combination of a group of drill rods and a connecting sleeve.

Description

Technical Field

[0001] This invention relates to the field of anchor drilling machine applications, specifically a pneumatic anchor drilling machine. Background Technology

[0002] Anchor drilling rigs are specialized engineering machines used in geotechnical engineering to drill holes and install anchor bolts. Their core function is to reinforce geotechnical structures such as slopes, tunnels, mines, and foundation pits through drilling, grouting, and anchor bolt implantation, thereby improving the stability and bearing capacity of the geotechnical body. They are widely used in mining, transportation tunnels, building foundation pits, water conservancy projects, and other fields.

[0003] There are many types of anchor drilling rigs, depending on the type of anchor bolt. Among them, the most widely used is the self-drilling anchor drilling rig. In a self-drilling anchor bolt, the anchor bolt body itself is the drill rod, combining drilling and anchoring functions. It eliminates the need for separate drilling and subsequent bolt installation, solving the problem of hole collapse in loose soil and sand layers. The anchor bolt body has a drill bit at the front and a power unit connected at the rear. The drill rod and anchor bolt body of a self-drilling anchor bolt drilling rig are integrated. Adding bolts essentially involves connecting multiple anchor bolt sections using specialized connectors. There are typically two methods for adding bolts: manual assistance and mechanical assistance.

[0004] For the manual assisted rod addition method, when the first section of the anchor rod with the drill bit is drilled into the rock wall, stop the drilling machine and clamp the current anchor rod with the clamping device of the drilling machine to prevent it from loosening or sliding in the hole. Take out the special connecting sleeve (this is the core connecting part of the self-drilling anchor rod addition, with internal threads at both ends to match the external threads of the anchor rod). First, tighten the connecting sleeve to the tail of the already drilled anchor rod, then align the head of the new anchor rod with the other end of the connecting sleeve, and tighten it manually or with a wrench. After the connection is completed, loosen the original clamping device of the drilling machine, re-clamp the tail of the extended anchor rod, and start the drilling machine to continue drilling. If further deepening is required, repeat the above steps.

[0005] For the mechanically assisted rod addition method, after the current anchor rod body is drilled to the set depth, the drill rig's power head stops outputting torque, the clamp clamps the anchor rod body to keep it fixed, and at the same time, the power head unlocks and separates from the anchor rod body, and moves upward to make room for rod addition. The drill rig uses a preset robotic arm to grab the anchor rod body to be added. The robotic arm adjusts its angle and transfers the new anchor rod body to a position coaxial with the anchor rod body in the hole. Then, the new anchor rod body is fixed by a mechanically driven caliper assembly, and then pushed forward to connect with the previous anchor rod body. The threaded fastening is completed through the connecting sleeve.

[0006] The above two rod-addition methods are the most common rod-addition methods for self-drilling anchor bolt drilling rigs. Among them, manual rod-addition is relatively inefficient and involves manual intervention by workers, which poses certain risks. While using a robotic arm to grab the rod reduces manual intervention, the robotic arm requires multiple high-precision sensors to operate, which leads to relatively high equipment manufacturing costs. Furthermore, the reduced electronic lifespan in high-temperature environments increases maintenance costs. Therefore, achieving automatic rod-addition for the drilling rig in a more efficient way can not only reduce the operating costs of the drilling rig but also improve the working efficiency of the drilling rig's autonomous operation. Summary of the Invention

[0007] Therefore, the purpose of this invention is to provide a pneumatic anchor drilling machine to solve the technical problems mentioned in the background.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a pneumatic anchor bolt drilling rig, comprising a tracked vehicle, an angle adjustment mechanism, a support frame, and a drill rod holder. A movable platform is movably mounted on the inner side of the support frame via a sliding rod. A first telescopic component is connected to the side of the movable platform. A power unit is mounted on the top of the movable platform, and a drill tail sleeve is provided at the end of the power unit. A lifting platform is movably mounted on the bottom of the support frame via a support column. A second telescopic component is connected to the top of the lifting platform, and a drill rod compartment is mounted on the top of the lifting platform. The drill rod compartment is used to store multiple combinations of drill rods and connecting sleeves, and the drill rod compartment can connect the combinations of drill rods and connecting sleeves to the anchor bolt drilling rig.

[0009] By adopting the above technical solution, an angle adjustment mechanism is used to adjust the drilling angle of the drill rod of the anchor bolt drilling machine. The drill rod holder can be set to electromagnetic type to clamp the drill rod. By setting a drill rod chamber, drill rod storage and automatic drill rod splicing can be realized.

[0010] The invention is further configured such that the drill pipe chamber includes a rotating rod rotatably connected to the top of the lifting platform, the rotating rod is connected to a drive assembly, a first bearing plate and a second bearing plate are mounted on the outside of the rotating rod, and a clamping assembly is movably mounted on the outside of the first bearing plate and the second bearing plate by means of a spring, the clamping assembly includes a first clamping assembly and a second clamping assembly, the first clamping assembly is used to clamp the drill pipe body part of the drill pipe and connecting sleeve combination, and the second clamping assembly is used to clamp the connecting sleeve part of the drill pipe and connecting sleeve combination.

[0011] Preferably, the drill pipe chamber is equipped with a clamping assembly to fix the drill pipe and the connecting sleeve. When the drill pipe chamber is raised, it will move the drill pipe and the connecting sleeve to the rod-adding space, thereby realizing the automatic connection of the drill pipe and the connecting sleeve.

[0012] The present invention is further configured such that the first clamping assembly includes a fixed block movably mounted to the first bearing plate, and movable blocks are movably mounted on both sides of the fixed block by means of a first fixed rod, and springs are sleeved on both sides of the movable blocks on the outside of the first fixed rods. Second fixed rods are movably mounted on the sides of both sets of movable blocks, and high-strength springs are sleeved on the outside of both sets of second fixed rods. First clamping blocks are provided at the ends of both sets of second fixed rods.

[0013] Preferably, the first clamping assembly is used to clamp the rod body of the drill pipe. The first clamping assembly mainly includes a fixed block that is movably installed with the first bearing plate. The fixed block is movably installed with a movable block by setting a first fixed rod. Low-strength springs are installed on both sides of the movable block on the outside of the first fixed rod, so that the movable block is initially located in the middle of the first fixed rod. The top of the movable block is also installed with a first clamping block by setting a second fixed rod and a high-strength spring. The two sets of first clamping blocks together clamp and restrict the rod body of the drill pipe and the connecting sleeve assembly.

[0014] The invention is further configured such that the second clamping assembly includes a mounting block movably mounted on a second bearing plate, and a rotating block is rotatably mounted inside the mounting block via a roller. A positive and negative threaded rod is rotatably connected to the inner side of the rotating block. Two sets of second clamping blocks are movably mounted inside the rotating block via a limiting guide rail. The two sets of second clamping blocks are threadedly connected to the positive and negative threaded rod. A drive shaft is also rotatably connected inside the rotating block. The drive shaft and the positive and negative threaded rod are connected via a worm gear assembly. A gear is provided on the outside of the drive shaft, and a rack is provided on the outside of the mounting block. A guide wheel is rotatably mounted on the side of the mounting block via a torsion spring, and a protrusion is provided on the side of the mounting block below the guide wheel, the protrusion being used to restrict the downward rotation of the guide wheel.

[0015] Preferably, a second clamping assembly is provided to clamp the hexagonal prism portion of the connecting sleeve. This assembly includes a mounting block with a second bearing plate movably mounted on it. A rotating block is rotatably connected within the mounting block, and a mechanically controlled second clamping block is provided within the rotating block to clamp the connecting sleeve assembly of the drill rod and the connecting sleeve. When the operator uses the two sets of second clamping blocks to clamp the hexagonal prism portion of the connecting sleeve by adjusting the worm gear assembly, rotating the drill rod will cause the connecting sleeve, the two sets of second clamping blocks, the worm gear assembly, etc., to rotate together. At the same time, it will also cause the bearing worm gear assembly and the rotating block of the second clamping block to rotate together. In other words, the rotation of the drill rod and the connecting sleeve combination will cause the rotating block to rotate within the mounting block. This means that the combination of the drill rod and the connecting sleeve located within the second clamping assembly can rotate freely.

[0016] The present invention is further configured such that a first pressing block is provided on the inner side of the support frame, a guide slope is provided on the side of the first pressing block, and the guide slope of the first pressing block matches the guide wheel of the second clamping assembly.

[0017] Preferably, by setting a first extrusion block, the clamping assembly is pushed to move laterally, so that the connecting sleeve can avoid the drill rod inside the rock wall, and the connecting sleeve can be moved and fitted onto the end of the drill rod inside the rock wall.

[0018] The present invention is further configured such that a second pressing block is provided on the side of the moving stage, and the side of the second pressing block is provided with a guide slope and a groove, and the guide slope and groove of the second pressing block are matched with the movable block of the first clamping assembly.

[0019] Preferably, by setting a second squeezing block to act on the first clamping assembly, the clamping force of the first clamping block of the first clamping assembly can be adjusted. When the second squeezing block actively approaches the first clamping assembly, the guide slope at the end of the second squeezing block pushes and squeezes the bottom of the two sets of movable blocks, causing the two sets of movable blocks to approach each other. At this time, since the rod body of the drill rod is clamped between the two sets of first clamping blocks, the distance between the two sets of first clamping blocks can no longer be changed. When the distance between the two sets of movable blocks approaches each other, the high-strength spring sleeved on the outside of the second fixed rod will be further compressed, thereby increasing the reset reaction force of the high-strength spring on the first clamping block, and thus increasing the clamping force of the two sets of first clamping blocks on the rod body of the drill rod.

[0020] The present invention is further configured such that the connecting sleeve includes a threaded sleeve, and the outside of the threaded sleeve is provided with a hexagonal prism, and both ends of the threaded sleeve are provided with extension sleeves, the diameter of the extension sleeves matching the diameter of the drill rod.

[0021] Preferably, in the existing technology, whether it is a manual assistance or a robotic arm gripping method, the core action is to ensure that the connecting sleeve can be stably screwed to the drill rod. Adding extension sleeves to both ends of the traditional connecting sleeve (the extension sleeves can improve the stability of the connection between the connecting sleeve and the drill rod) can also make the connecting sleeve and the drill rod more stably screwed together.

[0022] The present invention is further configured such that the clamping assembly is provided in multiple sets, and the multiple sets of clamping assemblies are evenly distributed on the radial outer side of the first bearing plate and the second bearing plate.

[0023] Preferably, by setting multiple sets of clamping components, the drill pipe chamber can store multiple combinations of drill pipes and connecting sleeves, so that the anchor drilling rig can connect multiple sets of drill pipes.

[0024] In summary, the present invention has the following main beneficial effects:

[0025] 1. This invention improves the efficiency of drilling rig anchor bolt addition by setting up a drill rod chamber to achieve drill rod storage and automatic drill rod splicing. In the prior art, whether it is a manual or robotic arm grabbing method for adding rods, the core action is to ensure that the connecting sleeve can be stably screwed to the drill rod. Adding extension sleeves to both ends of the traditional connecting sleeve (the extension sleeves can improve the stability of the connection between the connecting sleeve and the drill rod) can also make the connecting sleeve and the drill rod more stably screwed together.

[0026] The drill pipe compartment can be raised and lowered vertically. It mainly includes a rotating rod and externally mounted first and second bearing plates. Multiple sets of clamping assemblies are spring-loaded on the radially outer sides of the first and second bearing plates. Each clamping assembly is used to fix a combination of drill pipe and connecting sleeve. Therefore, the drill pipe compartment can store multiple sets of drill pipe to be added. When the drilling rig needs to add more pipe, sufficient space is reserved, and the drill pipe compartment actively rises. During the rising process, a first pressing block restricts the movement, causing the uppermost set of clamping assemblies in the drill pipe compartment to move horizontally. The sliding motion, where the clamping components move laterally, causes the drill pipe and connecting sleeve assembly to retract laterally in sync. When the drill pipe chamber rises to the designated position, the uppermost clamping components disengage from the squeezing blocks. Under the reset action of the spring, the clamping components carrying the drill pipe and connecting sleeve assembly also reset, allowing the extension sleeve at the end of the connecting sleeve to be fitted onto the end of the drill pipe in the current rock mass. Subsequently, the power unit drives the stub bushing to rotate, enabling the "current drill pipe in the rock mass" - "connecting drill pipe" - "stub bushing" to be spirally connected, thereby improving the efficiency of drill pipe connection.

[0027] 2. The present invention can make the drill pipe connection process more stable by setting a clamping component. The clamping component is divided into a first clamping component and a second clamping component, and both the first clamping component and the second clamping component are provided with "openings" to facilitate the loading and unloading of the drill pipe in the drill pipe chamber.

[0028] The first clamping assembly mainly includes a fixed block that is movably installed with the first bearing plate. The fixed block is movably installed with a movable block by setting a first fixed rod. Springs are installed on both sides of the movable block on the outside of the first fixed rod so that the movable block is initially located in the middle of the first fixed rod. The top of the movable block is also installed with a first clamping block by setting a second fixed rod and a high-strength spring. The two sets of first clamping blocks together clamp and restrict the drill rod body of the drill rod and connecting sleeve assembly.

[0029] The second clamping assembly includes a mounting block that is movably mounted on the second bearing plate. A rotating block is rotatably connected inside the mounting block. A mechanically controlled second clamping block is provided inside the rotating block to clamp the connecting sleeve of the drill rod and the connecting sleeve combination. In other words, the combination of the drill rod and the connecting sleeve can rotate freely within the second clamping assembly.

[0030] When the power unit moves laterally, causing the stern sleeve to actively approach the drill rod body, it also simultaneously moves the second pressing block. The second pressing block presses against the two sets of movable blocks of the first clamping assembly, bringing them closer together. This is achieved by using a high-strength spring on the side of the first clamping block to increase the clamping force of the first clamping block on the drill rod body. This allows the stern sleeve to better connect helically with the drill rod body during subsequent rotation. After the stern sleeve has been helically connected to the drill rod body for a certain distance, the groove of the second pressing block moves to the position of the two sets of movable blocks. The second squeezing block no longer acts on the two sets of movable blocks, thereby reducing the clamping force of the two sets of first clamping blocks on the drill rod body. This allows the stub sleeve to drive the drill rod and connecting sleeve assembly to rotate together. When the rotating block in the second clamping assembly rotates synchronously with the drill rod and connecting sleeve assembly, it causes the gear and rack to mesh with each other, causing the two sets of second clamping blocks clamping the connecting sleeve to move away from each other. That is, the drill rod and connecting sleeve assembly disengages from the second clamping assembly, allowing the "stub sleeve" - ​​"drill rod and connecting sleeve assembly" to rotate synchronously and then spirally connect with the drill rod in the current rock wall.

[0031] During the drill rod addition process, the drill rod to be connected is first kept stationary by the first and second clamping components. Then, the stern sleeve approaches the drill rod and the second pressing block further clamps the drill rod with the first clamping component. Subsequently, when the stern sleeve rotates and the drill rod moves in a spiral connection, the action of the second pressing block on the first clamping component is released, allowing the stern sleeve and the drill rod to rotate synchronously. When the drill rod rotates, the clamping of the connecting sleeve by the second clamping component is automatically released, further allowing the stern sleeve, the drill rod, and the drill rod inside the rock wall to be spirally connected. When adding rods, the drill rod to be connected and the stern sleeve are tightened first, and then the combination of the stern sleeve and the drill rod and the drill rod inside the rock wall are tightened, which makes the drill rod connection process more stable (compared to the synchronous spiral tightening of the three). Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the drill pipe compartment structure of the present invention;

[0034] Figure 3 This is a diagram illustrating the installation of the rotating rod, first bearing plate, second bearing plate, first clamping assembly, and second clamping assembly of the present invention.

[0035] Figure 4 This is a demonstration diagram showing the connection of the drill bit, drill rod inside the rock wall, connecting sleeve, subsequent drill rod, and drill tail sleeve of the present invention.

[0036] Figure 5 This is a schematic diagram of the connecting sleeve structure of the present invention;

[0037] Figure 6This is a schematic diagram of the structure of the first clamping component of the present invention;

[0038] Figure 7 This is a schematic diagram of the second clamping component structure of the present invention;

[0039] Figure 8 This is a schematic diagram showing the distribution of the mounting block, rack, roller, and guide wheel of the present invention;

[0040] Figure 9 This is a schematic diagram of the internal structure of the rotating block of the present invention;

[0041] Figure 10 This is a schematic diagram showing the distribution of the guide wheel and the first compression block when the drill pipe chamber is raised according to the present invention;

[0042] Figure 11 This is a schematic diagram showing the distribution of the guide wheel and the first compression block when the drill pipe chamber of the present invention is raised to a designated position;

[0043] Figure 12 This diagram illustrates the movement of the second extrusion block towards the first clamping assembly according to the present invention.

[0044] Figure 13 This is a demonstration diagram of the second clamping assembly when the rotating block of the present invention rotates to drive the gear and rack to mesh.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Tracked vehicle; 2. Angle adjustment mechanism; 3. Bearing frame; 4. Drill pipe holder; 5. Sliding rod; 6. Moving platform; 7. First telescopic assembly; 8. Power unit; 9. Drill tail sleeve; 10. Bearing column; 11. Lifting platform; 12. Second telescopic assembly; 13. Rotating rod; 14. Drive assembly; 15. First bearing plate; 16. First clamping assembly; 1601. Fixed block; 1602. First fixed rod; 1603. Movable block; 1604. Second fixed rod; 1605. First clamping block; 17. 18. Second bearing plate; 19. Second clamping assembly; 10. Mounting block; 11. Roller; 12. Rotating block; 13. Threaded rod; 14. Limiting guide rail; 15. Second clamping block; 16. Drive shaft; 17. Worm gear assembly; 1808. Gear; 19. Rack; 10. Guide wheel; 11. First pressing block; 22. Second pressing block; 23. Connecting sleeve; 24. Threaded sleeve; 25. Hexagonal prism; 26. Extension sleeve. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0048] The embodiments of the present invention will now be described.

[0049] Please see Figures 1-13 A pneumatic anchor bolt drilling rig includes a tracked vehicle 1 for driving the anchor bolt drilling rig to move, an angle adjustment mechanism 2 for adjusting the drilling angle of the anchor bolt drilling rig, a support frame 3 and a drill rod holder 4. A movable platform 6 is movably mounted on the inner side of the support frame 3 via a sliding rod 5. A first telescopic component 7 is connected to the side of the movable platform 6. A power unit 8 is mounted on the top of the movable platform 6. The power unit 8 is pneumatic and includes a pneumatic motor and a pneumatic system. A drill tail sleeve 9 is provided at the end of the power unit 8. A lifting platform 11 is movably mounted on the bottom of the support frame 3 via a support column 10. A second telescopic component 12 is connected to the top of the lifting platform 11, and a drill rod compartment is mounted on the top of the lifting platform 11. The drill rod compartment is used to store multiple sets of drill rods and connecting sleeves 21, and the drill rod compartment can connect the drill rods and connecting sleeves 21 to the anchor bolt drilling rig.

[0050] Please refer to the above embodiments for further details. Figure 2 and Figure 3 The drill pipe compartment includes a rotating rod 13 rotatably connected to the top of the lifting platform 11. The rotating rod 13 is connected to a drive assembly 14. A first bearing plate 15 and a second bearing plate 17 are installed on the outside of the rotating rod 13. A clamping assembly is movably installed on the outside of the first bearing plate 15 and the second bearing plate 17 by means of a spring. The clamping assembly includes a first clamping assembly 16 and a second clamping assembly 18. The first clamping assembly 16 is used to clamp the drill pipe body part of the drill pipe and the connecting sleeve 21 combination. The second clamping assembly 18 is used to clamp the connecting sleeve 21 part of the drill pipe and the connecting sleeve 21 combination. The drill pipe compartment is used to fix the drill pipe and the connecting sleeve 21 by means of the clamping assembly. When the drill pipe compartment is raised, it will drive the drill pipe and the connecting sleeve 21 to move to the rod extension space to realize the automatic connection of the drill pipe and the connecting sleeve 21.

[0051] Please refer to the above embodiments for further details. Figure 6The first clamping assembly 16 includes a fixed block 1601 movably mounted to the first bearing plate 15. Movable blocks 1603 are movably mounted on both sides of the fixed block 1601 via first fixed rods 1602. Springs are sleeved on both sides of the movable blocks 1603 on the outside of the first fixed rods 1602. Second fixed rods 1604 are movably mounted on the sides of both sets of movable blocks 1603. High-strength springs are sleeved on the outside of both sets of second fixed rods 1604. First clamping blocks 1605 are provided at the ends of both sets of second fixed rods 1604. The first clamping assembly 16 is used to clamp the rod body of the drill pipe. A clamping assembly 16 mainly includes a fixed block 1601 that is movably installed with the first bearing plate 15. The fixed block 1601 is movably installed with a movable block 1603 by setting a first fixed rod 1602. Low-strength springs are installed on both sides of the movable block 1603 on the outside of the first fixed rod 1602, so that the movable block 1603 is initially located in the middle of the first fixed rod 1602. The top of the movable block 1603 is equipped with a first clamping block 1605 by setting a second fixed rod 1604 and a high-strength spring. The two sets of first clamping blocks 1605 together clamp and restrict the drill rod body of the drill rod and connecting sleeve 21.

[0052] Please refer to the above embodiments for further details. Figures 7-9The second clamping assembly 18 includes a mounting block 1801 movably mounted to the second bearing plate 17. A rotating block 1803 is rotatably mounted inside the mounting block 1801 via a roller 1802. A positive and negative threaded rod 1804 is rotatably connected to the inner side of the rotating block 1803. Two sets of second clamping blocks 1806 are movably mounted inside the rotating block 1803 via a limiting guide rail 1805. The two sets of second clamping blocks 1806 are threadedly connected to the positive and negative threaded rods 1804. Furthermore, the rotating block 1803 also... A drive shaft 1807 is rotatably connected to a threaded rod 1804. The drive shaft 1807 and the threaded rod 1804 are connected via a worm gear assembly 1808. A gear 1809 is mounted on the outside of the drive shaft 1807, and a rack 1810 is mounted on the outside of the mounting block 1801. A guide wheel 1811 is rotatably mounted on the side of the mounting block 1801 via a torsion spring. A protrusion is located on the side of the mounting block 1801 below the guide wheel 1811, which restricts the downward rotation of the guide wheel 1811. A second clamping assembly 18 is provided to clamp the hexagonal prism 2102 portion of the connecting sleeve 21. This assembly includes a mounting block 1801 movably mounted on the second bearing plate 17. A rotating block 1803 is rotatably connected within the mounting block 1801. A mechanically controlled second clamping block 1806 is located within the rotating block 1803 to clamp the connecting sleeve 21, which is the assembly of the drill pipe and the connecting sleeve 21. When the operator adjusts the worm gear assembly 1808, the two sets of second clamping blocks 1806 are used to clamp the hexagonal prism 2102 portion of the connecting sleeve 21. When the two parts are clamped, if the drill rod is rotated, it will cause the connecting sleeve 21, the two sets of second clamping blocks 1806, the worm gear assembly 1808, etc. to rotate together. At the same time, it will also cause the rotating block 1803 that carries the worm gear assembly 1808 and the second clamping block 1806 to rotate together. In other words, the combined rotation of the drill rod and the connecting sleeve 21 will cause the rotating block 1803 to rotate within the mounting block 1801. That is to say, the combination of the drill rod and the connecting sleeve 21 located within the second clamping assembly 18 can rotate freely.

[0053] Please refer to the above embodiments for further details. Figure 1 , Figure 10 and Figure 11 The inner side of the support frame 3 is provided with a first pressing block 19, and the side of the first pressing block 19 is provided with a guide slope. The guide slope of the first pressing block 19 matches the guide wheel 1811 of the second clamping assembly 18. By setting the first pressing block 19, the clamping assembly is pushed to move laterally, so that the connecting sleeve 21 can avoid the drill rod in the rock wall, and the connecting sleeve 21 can be moved and fitted onto the end of the drill rod in the rock wall.

[0054] Please refer to the above embodiments for further details. Figure 12The moving stage 6 has a second pressing block 20 on its side. The second pressing block 20 has a guide slope and a groove on its side. The guide slope and groove of the second pressing block 20 match the movable block 1603 of the first clamping assembly 16. By setting the second pressing block 20 to act on the first clamping assembly 16, the first clamping block 1605 of the first clamping assembly 16 can adjust the clamping force. When the second pressing block 20 actively approaches the first clamping assembly 16, the guide slope at the end of the second pressing block 20 pushes and squeezes the two sets of movable blocks 1603. At the bottom of 3, the two sets of movable blocks 1603 are brought closer to each other. At this time, since the rod body of the drill rod is clamped between the two sets of first clamping blocks 1605, the distance between the two sets of first clamping blocks 1605 can no longer be changed. When the distance between the two sets of movable blocks 1603 is closer to each other, the high-strength spring sleeved on the outside of the second fixed rod 1604 will be further compressed, so the reset reaction force of the high-strength spring on the first clamping block 1605 will also increase, thereby increasing the clamping force of the two sets of first clamping blocks 1605 on the rod body of the drill rod.

[0055] Please refer to the above embodiments for further details. Figure 5 The connecting sleeve 21 includes a threaded sleeve 2101, and a hexagonal prism 2102 is provided on the outside of the threaded sleeve 2101. Both ends of the threaded sleeve 2101 are provided with extension sleeves 2103. The diameter of the extension sleeves 2103 matches the diameter of the drill rod. In the prior art, whether it is a manual assistance or a robotic arm gripping method, the core action is to ensure that the connecting sleeve 21 can be stably screwed with the drill rod. Adding extension sleeves 2103 to both ends of the traditional connecting sleeve 21 (the extension sleeves 2103 can improve the stability of the connection between the connecting sleeve 21 and the drill rod) can also make the connecting sleeve 21 and the drill rod more stably screwed together.

[0056] Please refer to the above embodiments for further details. Figure 2 The clamping assembly is provided in multiple sets, which are evenly distributed on the radial outer side of the first bearing plate 15 and the second bearing plate 17. By providing multiple sets of clamping assemblies, the drill pipe chamber can store multiple sets of drill pipe and connecting sleeve 21 combinations, so that the anchor drilling rig can connect multiple sets of drill pipe.

[0057] In practical operation, the operator needs to pre-tighten the drill rod and connecting sleeve 21 together, and then engage multiple drill rods and connecting sleeves 21 into each clamping assembly. The hexagonal prism 2102 portion of the connecting sleeve 21 is engaged between the two sets of second clamping blocks 1806 of the second clamping assembly 18. By rotating the transmission shaft 1807 with a wrench, the two sets of second clamping blocks 1806 are controlled to clamp the hexagonal prism 2102 portion of the connecting sleeve 21. The drill rod body portion can be engaged between the two sets of movable blocks 1603 of the first clamping assembly 16 by pressing. In the first clamping assembly 16, since the spring outside the second fixed rod 1604 is high-strength while the spring outside the first fixed rod 1602 is ordinary spring, the displacement deformation between the movable block 1603 and the first clamping block 1605 is relatively small, while the displacement deformation of the movable block 1603 outside the first fixed rod 1602 is relatively large.

[0058] When the anchor drilling rig needs to add rods, firstly, the drill rod holder 4 is activated to clamp the drill rod that is currently inside the rock wall. Then, the power unit 8 is activated to reverse, so that the drill tail sleeve 9 and the drill rod inside the rock wall are released. The first telescopic component 7 drives the moving platform 6 to move, so that the power unit 8 and the drill tail sleeve 9 move, leaving enough space for the anchor drilling rig to add rods.

[0059] Next, the second telescopic component 12 is activated to raise the lifting platform 11, and the drill pipe chamber at the top of the lifting platform 11 is raised synchronously. The guide wheel 1811 of the second clamping component 18 of the uppermost clamping component of the drill pipe chamber is squeezed by the guide slope of the first extrusion block 19, and the entire clamping component moves laterally under the compression spring. This causes the connecting sleeve 21, which is a combination of the drill pipe and the connecting sleeve 21 carried in the clamping component, to retract and avoid the drill pipe inside the rock wall. When the drill pipe chamber is raised to the designated position, the guide wheel 1811 is released from the restriction of the first extrusion block 19, and the clamping component is reset under the reset action of the spring, so that the connecting sleeve 21 can be fitted onto the outside of the drill pipe inside the rock wall.

[0060] Next, the first telescopic component 7 is activated again to push the moving platform 6 to move, so that the power unit 8 and the drill tail sleeve 9 on the top of the moving platform 6 actively approach the drill rod body part of the drill rod and connecting sleeve 21 combination. At the same time, the movement of the moving platform 6 drives the second pressing block 20 to move, and then the guide slope at the end of the second pressing block 20 presses the two sets of movable blocks 1603 of the first clamping component 16, so that the two sets of movable blocks 1603 press the spring outside the first fixed rod 1602, that is, make the two sets of movable blocks 1603 approach each other. Since the two sets of first clamping blocks 1605 are attached to the outer wall of the drill rod and cannot continue to move, the two sets of movable blocks 1603 approaching each other will further compress the high-strength spring outside the second fixed rod 1604, thereby increasing the clamping force of the two sets of first clamping blocks 1605 on the drill rod body. Then, the power unit 8 drives the drill tail sleeve 9 to rotate, and at the same time, the moving platform 6 drives the power unit 8 and the drill tail sleeve 9 to move, so that the drill tail sleeve 9 rotates and moves and is spirally connected to the drill rod body.

[0061] As the moving stage 6 moves the second pressing block 20, the groove of the second pressing block 20 moves to the position of the movable block 1603. Thus, the second pressing block 20 no longer restricts the movable block 1603, allowing the two sets of movable blocks 1603 to move away from each other. This reduces the clamping force of the first clamping block 1605 on the drill rod body. After the shank sleeve 9 and the drill rod body are spirally connected for a certain distance, the combination of the shank sleeve 9 with the drill rod and connecting sleeve 21 becomes more stable. At this time, due to the reduced clamping force of the two sets of first clamping blocks 1605, the shank sleeve 9 will drive the drill rod and connecting sleeve 21 to rotate synchronously. Consequently, the connecting sleeve 21 will also drive the second clamping block 1806 to rotate, which in turn will drive the rotating block 1803 to rotate within the mounting block 1801. (See attached instruction manual) Figure 13 For example, the counterclockwise rotation of the connecting sleeve 21 drives the rotating block 1803 to rotate counterclockwise, causing the gear 1809 and rack 1810 to mesh. That is, the rotation of the transmission shaft 1807 drives the positive and negative threaded rod 1804 to rotate through the worm gear assembly 1808, thereby causing the two sets of second clamping blocks 1806 to move away from each other and release the clamping of the connecting sleeve 21. When the gear 1809 and rack 1810 disengage, the two sets of second clamping blocks 1806 of the second clamping assembly 18 also release from the outside of the connecting sleeve 21. As a result, the rotating block 1803 of the second clamping assembly 18, especially the center of gravity, is biased downward, causing the rotating block 1803 to deflect itself so that the "opening" faces upward. The drill bit sleeve 9 drives the combination of drill rod and connecting sleeve 21 to continue rotating and continue to spirally connect with the drill rod inside the rock wall until the drill bit sleeve 9, drill rod and connecting sleeve 21 combination and drill rod inside the rock wall are spirally connected, and drilling work can continue.

[0062] At this time, because the "opening" of the second clamping assembly 18 adjusts upward on its own, and the clamping force of the first clamping block 1605 of the first clamping assembly 16 decreases, the second telescopic assembly 12 is activated to push the lifting platform 11 down, which in turn lowers the drill pipe chamber. The guide wheel 1811 of the second clamping assembly 18 can flip upward without interfering with the first pressing block 19. The torsion spring of the guide wheel 1811 also causes it to flip downward, and the protrusion below it can restrict the guide wheel 1811 from flipping downward. Thus, the guide wheel 1811 is initially in a horizontal state. After the drill pipe chamber is completely lowered, the drive assembly 14 can be activated to drive it to rotate, thereby rotating and replacing multiple sets of drill pipes and connecting sleeves 21 to facilitate the next rod addition work of the anchor drilling rig.

[0063] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pneumatic anchor drilling rig, comprising a tracked vehicle (1), an angle adjustment mechanism (2), a support frame (3), and a drill rod holder (4), characterized in that: A movable platform (6) is movably mounted on the inner side of the support frame (3) via a sliding rod (5). A first telescopic component (7) is connected to the side of the movable platform (6). A power device (8) is mounted on the top of the movable platform (6). A drill tail sleeve (9) is provided at the end of the power device (8). A lifting platform (11) is movably mounted on the bottom of the support frame (3) via a support column (10). A second telescopic component (12) is connected to the top of the lifting platform (11). A drill rod compartment is installed on the top of the lifting platform (11). The drill rod compartment is used to store multiple sets of drill rod and connecting sleeve (21) combinations. The drill rod compartment can connect the drill rod and connecting sleeve (21) combinations to the anchor drilling machine. The drill rod compartment includes a rotating... A rotating rod (13) is connected to the top of the lifting platform (11). A drive assembly (14) is connected to the rotating rod (13). A first bearing plate (15) and a second bearing plate (17) are installed on the outside of the rotating rod (13). A clamping assembly is movably installed on the outside of the first bearing plate (15) and the second bearing plate (17) by means of a spring. The clamping assembly includes a first clamping assembly (16) and a second clamping assembly (18). The first clamping assembly (16) is used to clamp the drill rod body part of the drill rod and the connecting sleeve (21) combination. The second clamping assembly (18) is used to clamp the connecting sleeve (21) part of the drill rod and the connecting sleeve (21) combination. The second clamping assembly (18) includes a second bearing plate and a second bearing plate. The mounting block (1801) is movably mounted on the carrier plate (17), and a rotating block (1803) is rotatably mounted inside the mounting block (1801) via a roller (1802). A positive and negative threaded rod (1804) is rotatably connected to the inner side of the rotating block (1803), and two sets of second clamping blocks (1806) are movably mounted inside the rotating block (1803) via a limit guide rail (1805). The two sets of second clamping blocks (1806) are threadedly connected to the positive and negative threaded rod (1804), and a drive shaft (1807) is also rotatably connected inside the rotating block (1803). A worm gear assembly is provided between the drive shaft (1807) and the positive and negative threaded rod (1804). The component (1808) is connected to the transmission. A gear (1809) is provided on the outside of the transmission shaft (1807). A rack (1810) is provided on the outside of the mounting block (1801). A guide wheel (1811) is rotatably mounted on the side of the mounting block (1801) by means of a torsion spring. A protrusion is provided on the side of the mounting block (1801) below the guide wheel (1811). The protrusion is used to restrict the guide wheel (1811) from rotating downward. A first pressing block (19) is provided on the inner side of the support frame (3). A guide slope is provided on the side of the first pressing block (19). The guide slope of the first pressing block (19) matches the guide wheel (1811) of the second clamping assembly (18).

2. The pneumatic anchor drilling rig according to claim 1, characterized in that: The first clamping assembly (16) includes a fixed block (1601) movably mounted to the first bearing plate (15), and movable blocks (1603) are movably mounted on both sides of the fixed block (1601) by means of a first fixed rod (1602). Springs are sleeved on both sides of the first fixed rod (1602) on both sides of the movable block (1603). Second fixed rods (1604) are movably mounted on the sides of both sets of movable blocks (1603), and high-strength springs are sleeved on the outside of both sets of second fixed rods (1604). First clamping blocks (1605) are provided at the ends of both sets of second fixed rods (1604).

3. A pneumatic anchor drilling rig according to claim 2, characterized in that: The side of the moving platform (6) is provided with a second pressing block (20), and the side of the second pressing block (20) is provided with a guide slope and a groove. The guide slope and groove of the second pressing block (20) match the movable block (1603) of the first clamping assembly (16).

4. A pneumatic anchor drilling rig according to claim 1, characterized in that: The connecting sleeve (21) includes a threaded sleeve (2101), and a hexagonal prism (2102) is provided on the outside of the threaded sleeve (2101). Both ends of the threaded sleeve (2101) are provided with extension sleeves (2103), and the diameter of the extension sleeves (2103) matches the diameter of the drill rod.

5. A pneumatic anchor drilling rig according to claim 1, characterized in that: The clamping assembly is provided in multiple sets, and the multiple sets of clamping assemblies are evenly distributed on the radial outer side of the first bearing plate (15) and the second bearing plate (17).

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