A drilling rig mast folding transport device suitable for confined spaces

Abstract

The present application relates to the technical field of drilling rig hole making, and discloses a drilling rig stand folding and transporting device suitable for limited space, which comprises a drilling rig mechanism for hole making work in a coal mine underground, a transporting mechanism connected with the drilling rig mechanism and used for transporting the drilling rig mechanism to a predetermined drilling position, a main control mechanism arranged on the transporting mechanism, and a feeding unit arranged on the main control mechanism and used for transporting and detecting a drill rod. The drilling rig mechanism comprises a base fixedly installed on the transporting mechanism, at least two stands screw-connected with the base, a first hinged seat arranged on one side of the stand, a driving cylinder movably connected with the first hinged seat, and a connecting seat used for connecting the driving cylinder and the stand. The device does not need to be disassembled, the height of the device is reduced by adjusting the length of the whole device, and the drilling rig can be carried into a narrow roadway.

Description

Technical Field

[0001] This invention relates to the technical field of drilling rig hole creation, specifically a folding and transporting device for drilling rig columns suitable for confined spaces. Background Technology

[0002] The drilling rig column folding transport equipment is mainly used for drilling rig relocation operations. It can quickly fold up the column to its original shape, effectively avoid road transport restrictions, reduce disassembly and assembly procedures and transportation costs, shorten site relocation preparation time, improve equipment mobility, adapt to various engineering construction scenarios, and ensure a stable and convenient relocation process.

[0003] However, existing drilling equipment still has some problems. Transportation conditions in underground coal mine operation areas are limited, and the tunnel space is narrow and cramped. At present, most large equipment needs to be disassembled before it can be transported. It is then reassembled after being transported to the working face. This operation mode is complicated, greatly increases the intensity of manual labor, and affects the efficiency of construction.

[0004] Therefore, how to develop a device that can adapt to the confined underground transportation environment and achieve seamless transfer of the entire machine is a problem that needs to be solved. Summary of the Invention

[0005] This invention provides a folding and transporting device for drilling rig columns suitable for confined spaces, in order to solve the aforementioned problems existing in the prior art.

[0006] A folding transport device for drilling rig columns suitable for confined spaces, comprising:

[0007] Drilling rigs are used for creating holes in coal mines.

[0008] A transport mechanism, connected to the drilling mechanism, is used to transport the drilling mechanism to a preset drilling location;

[0009] The main control mechanism is located on the transportation mechanism;

[0010] The feeding unit, located on the main control mechanism, is used for the transportation and inspection of drill rods;

[0011] The drilling rig mechanism includes a base fixedly mounted on the transport mechanism, at least two columns screwed to the base, a first hinge seat disposed on one side of the columns, a drive cylinder movably connected to the first hinge seat, and a connecting seat for connecting the drive cylinder and the columns.

[0012] The column is movably connected to the drive cylinder via the first hinge seat, causing the column to change from a folded to an upright state, and the column is installed on the base with bolts.

[0013] Furthermore, the drilling mechanism also includes a drilling part for connecting two connecting seats and being movably connected to the connecting seats, a cylinder disposed on the drilling part, a second hinge seat fixedly mounted on the column, and a third hinge seat disposed on the base.

[0014] After the column becomes vertical, the second hinge seat and the third hinge seat are connected by a pin.

[0015] The other end of the cylinder is movably connected to the base.

[0016] Furthermore, the feeding unit includes a mounting base fixedly installed on the main control mechanism, three limiting seats fixedly connected to the mounting base, a propulsion cylinder disposed on one of the limiting seats, limiting grooves opened on the remaining two limiting seats, a propulsion block connected to the output end of the propulsion cylinder, a first drive wheel symmetrically disposed on the propulsion block and located in the limiting groove, and a pressure ball disposed on the propulsion block.

[0017] Furthermore, the feeding unit also includes a rotary motor fixedly mounted on the mounting base, a rotating wheel disposed on the mounting base, a plurality of placement slots opened in the circumference of the rotating wheel, a feeding slot opened on the mounting base, a guide plate located at the feeding slot, a support base disposed on the main control mechanism, a lead screw linear motion part connected to the support base, a drive block located on the lead screw linear motion part, and a pusher seat disposed on the drive block;

[0018] The support base is provided with a feed groove for placing the drill rod;

[0019] The rotary motor and the rotating wheel are connected by a belt.

[0020] Furthermore, it also includes detection units symmetrically arranged on both sides of the feeding unit, the detection units being used to detect the drill rod of the casing structure;

[0021] The detection unit includes a support frame fixedly mounted on the mounting base, a displacement mechanism connected to the support frame, a displacement frame disposed on the displacement mechanism, a rotary motor fixedly mounted on the displacement frame, a drive shaft disposed at the output end of the rotary motor, a transmission part connected to the drive shaft, a connecting frame disposed on the displacement frame, a mounting frame connected to the connecting frame, a first detection part connected to the transmission part and abutting against the mounting frame, and a second detection part disposed on the transmission part;

[0022] A gap is reserved between the first detection section and the second detection section so that the inner tube of the drill pipe is located between the first detection section and the second detection section. The first detection section is used to detect the inner wall of the inner tube, and the second detection section is used to detect the inner wall of the outer tube.

[0023] The first and second detection units are capable of moving along the drill pipe axis and the distance of movement is greater than half the length of the drill pipe.

[0024] Furthermore, the transmission unit includes a first rotating frame connected to the drive shaft, a transmission component disposed on the first rotating frame, a second rotating frame connected to the transmission component, and a driven tube disposed on the second rotating frame;

[0025] The inner wall of the first rotating frame is provided with a drive groove, and there is a preset angle between the plane formed by the drive groove and the bottom plane of the first rotating frame;

[0026] The second detection unit is mounted on the driven tube, and the first detection unit is connected to the first rotating frame;

[0027] When one end of the drill rod abuts against the first rotating frame, the second detection unit is at its farthest point and the moving distance of the second detection unit is greater than half the length of the drill rod.

[0028] Furthermore, the transmission component includes a plurality of V-shaped connecting grooves disposed in the circumferential direction of the second rotating frame, with adjacent connecting grooves connected to each other to form a closed groove;

[0029] The second rotating frame is provided with a driven tube, an L-shaped slide rail sleeved on the driven tube, a first transmission block slidably connected to the slide rail, and two protrusions symmetrically arranged on the first transmission block;

[0030] One of the protrusions is located inside the drive groove, and the other protrusion is located inside the closed groove;

[0031] The line connecting the inner and outer inflection points of the V-shaped connecting groove forms an angle with the axis of the second rotating frame, allowing the protrusion to smoothly pass over the inflection point.

[0032] Furthermore, the second detection unit includes a connecting frame fixedly mounted on the driven tube, a support rod disposed on the connecting frame and slidably connected to the connecting frame, a sliding seat connected to the support rod, a return spring for connecting the sliding seat and the connecting frame, an abutment block disposed at one end of the support rod, and an electrode plate located in the abutment block.

[0033] Furthermore, the first detection unit includes a rotating seat connected to the first rotating frame, a support column disposed on the rotating seat, an adjusting block sleeved on the support column and slidably connected to the support column, a second drive wheel disposed on the adjusting block, and a vision detector disposed on the adjusting block.

[0034] Furthermore, the mounting bracket is also provided with a first limiting ring and a second limiting ring;

[0035] The first limiting ring and the second limiting ring have the same structure;

[0036] The first limiting ring is provided with a recess and a protrusion, as well as a transition portion for connecting the recess and the protrusion;

[0037] The protrusion of the first limiting ring is directly opposite the recess of the second limiting ring.

[0038] Beneficial Effects: This invention discloses a folding transport device for drilling rig columns suitable for confined spaces. To adapt the transport device to the narrow underground transport environment and achieve seamless transport of the entire machine without disassembly, the column in this device is connected to a connecting seat and a drive cylinder. The drive cylinder is movably connected to a first hinge seat. After reaching a predetermined position in the tunnel, the column can be folded from a folded state to an upright state due to the movable connection between the drive cylinder and the first hinge seat. Then, the bottom of the column is fixed to the base using bolts. At this time, the second hinge seat is located at the third hinge seat. The operator can use a pin to connect and fix the second and third hinge seats. Then, the cylinder is used to connect the drilling rig to the base, so that the drilling rig can be positioned in the predetermined position, ensuring the smooth progress of the tunnel drilling operation. In the above process, the entire equipment can be transported to narrow tunnels without disassembly. The movable connection of the column allows for adjustment of the column's position, and by adjusting the overall length of the equipment, the height of the equipment can be reduced, allowing it to move smoothly in the tunnel. Attached Figure Description

[0039] Figure 1 This is a structural schematic diagram of a drilling rig column folding and transporting device suitable for confined spaces according to the present invention;

[0040] Figure 2 This is a schematic diagram of the drilling mechanism structure of the present invention;

[0041] Figure 3 This is a schematic diagram of the feeding unit structure of the present invention;

[0042] Figure 4 This is a schematic diagram of the propulsion seat structure of the present invention;

[0043] Figure 5 This is a schematic diagram of the detection unit structure of the present invention;

[0044] Figure 6 This is a schematic diagram of the transmission part structure of the present invention;

[0045] Figure 7 This is a schematic diagram of the transmission component structure of the present invention;

[0046] Figure 8This is a schematic diagram of the structure of the second detection unit of the present invention;

[0047] Figure 9 This is a schematic diagram of the structure of the first detection unit of the present invention;

[0048] Figure 10 This is a schematic diagram of the mounting bracket structure of the present invention.

[0049] Reference numerals: 1. Transport mechanism; 2. Drilling mechanism; 21. Column; 22. Drilling unit; 23. Drive cylinder; 24. First hinge seat; 25. Second hinge seat; 26. Pin; 27. Base; 28. Third hinge seat; 29. ​​Connecting seat; 3. Main control mechanism; 4. Feeding unit; 41. Limit seat; 42. Propulsion cylinder; 43. Propulsion block; 44. First drive wheel; 45. Downward pressure ball; 46. Rotary motor; 47. Rotating wheel; 48. Placement slot; 49. Discharge slot; 410. Support seat; 411. Mounting seat; 412. Lead screw linear motion part; 413. Drive block; 414. Propulsion seat; 5. Detection unit; 51. Support frame; 52. Displacement Mechanism; 53. Displacement frame; 54. Rotary motor; 55. Drive shaft; 56. Connecting frame; 57. First detection unit; 571. Rotating seat; 572. Support column; 573. Adjusting block; 574. Second drive wheel; 58. Mounting frame; 581. First limiting ring; 582. Second limiting ring; 59. Second detection unit; 591. Connecting frame; 592. Sliding seat; 593. Support rod; 594. Return spring; 595. Abutment block; 510. Transmission unit; 5101. First rotating frame; 5102. Transmission component; 51021. First transmission block; 51022. Protrusion; 51023. Slide rail; 5103. Second rotating frame; 5104. Driven tube. Detailed Implementation

[0050] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0051] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0052] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0053] This invention discloses a folding and transporting device for drilling rig columns suitable for confined spaces, with reference to... Figures 1-10 ,include:

[0054] The drilling mechanism 2 is used for creating boreholes in underground coal mines; the transport mechanism 1 is connected to the drilling mechanism 2 and is used to transport the drilling mechanism 2 to a predetermined drilling position; the main control mechanism 3 is mounted on the transport mechanism 1; the feeding unit 4 is mounted on the main control mechanism 3 and is used for transporting and inspecting drill rods; the drilling mechanism 2 includes a base 27 fixedly mounted on the transport mechanism 1, at least two columns 21 screwed to the base 27, a first hinge seat 24 mounted on one side of the column 21, a drive cylinder 23 movably connected to the first hinge seat 24, and a connector for connecting the drive cylinder 23 to the column 21. The drilling mechanism 2 includes a drilling section 22 for connecting the two connecting seats 29 and movably connecting them, a cylinder mounted on the drilling section 22, a second hinge seat 25 fixedly mounted on the column 21, and a third hinge seat 28 mounted on the base 27. After the column 21 becomes vertical, the second hinge seat 25 and the third hinge seat 28 are connected by a pin 26. The other end of the cylinder is movably connected to the base 27.

[0055] After the drilling rig 2 is transported to the predetermined position in the roadway by the transport mechanism 1, the column 21 can be changed from a laid-down state to a vertical state because the drive cylinder 23 is movably connected to the first hinge seat 24. Then, the bottom of the column 21 is fixed to the base 27 by bolts. At this time, the second hinge seat 25 is located in the third hinge seat 28. The operator can complete the connection and fixation work between the second hinge seat 25 and the third hinge seat 28 by the set pin 26. Then, the cylinder is used to connect the drilling part 22 and the base 27, so that the drilling rig can be located in the predetermined position to ensure the smooth progress of the roadway hole making work. At this time, the drive cylinder 23 starts to work. The moving drive cylinder 23 can drive the connecting seat 29 to move in the length direction of the column 21, changing the height of the drilling part 22. Then the cylinder starts to work. The moving cylinder can make the drilling part 22 rotate around the connecting seat 29, adjusting the angle between the drilling part 22 and the roadway surface, thereby completing the hole making work for straight or inclined holes.

[0056] This equipment eliminates the need to disassemble core components such as the drilling mechanism 2 and the transportation mechanism 1, saving the tedious processes of disassembly, reassembly, and secondary assembly. This significantly reduces the time spent on equipment deployment and relocation underground, and lowers the labor intensity of disassembly and assembly operations. At the same time, the column 21 in this equipment can adopt a folding structure that can be switched between folding and vertical operation, thereby flexibly adjusting the overall size of the equipment. This allows the equipment to shrink its overall height and space occupation during transportation, adapting to the complex working conditions of narrow and restricted passage in underground coal mine roadways, and avoiding the problems of fixed overall size of conventional hole-making drilling rigs and easy scraping and obstruction during underground transportation.

[0057] The feeding unit 4 includes a mounting base 411 fixedly mounted on the main control mechanism 3, three limiting seats 41 fixedly connected to the mounting base 411, a propulsion cylinder 42 disposed on one of the limiting seats 41, limiting grooves opened on the remaining two limiting seats 41, a propulsion block 43 connected to the output end of the propulsion cylinder 42, a first drive wheel 44 symmetrically disposed on the propulsion block 43 and located in the limiting groove, and a pressing ball 45 disposed on the propulsion block 43, the pressing ball 45 being elastic;

[0058] After the position adjustment of the drilling mechanism 2 is completed, the drill rod can be placed into the placement groove 48 on the circumferential direction of the rotating wheel 47 by the robot arm. At this time, the propulsion cylinder 42 starts to work. The moving propulsion cylinder 42 can drive the propulsion block 43 to move, so that the propulsion block 43 can drive the first drive wheel 44 to move in the limiting groove, change the position of the pressure ball 45, so that the pressure ball 45 can abut against the outer wall of the drill rod in the placement groove 48, limit the drill rod, and prevent the drill rod from detaching from the rotating wheel 47 during the rotation of the rotating wheel 47.

[0059] The pressure ball 45 can precisely fit against the outer wall of the drill rod to form a flexible abutment limit, which is compatible with the cylindrical shape of the drill rod. During the process of the rotating wheel 47 conveying the drill rod, it can effectively limit the radial movement and loosening displacement of the drill rod, eliminate safety hazards such as the drill rod falling off or misaligning, and ensure the orderly progress of continuous feeding operations. At the same time, after the drill rod is in the placement groove 48, the pressure ball 45 abuts against the drill rod to prevent the drill rod from shifting during the inspection process, which would damage the inspection unit 5 and ensure that the inspection unit 5 can perform the inspection work smoothly.

[0060] The feeding unit 4 also includes a rotary motor 46 fixedly mounted on the mounting base 411, a rotating wheel 47 disposed on the mounting base 411, a plurality of placement slots 48 formed on the circumference of the rotating wheel 47, a discharge slot 49 formed on the mounting base 411, a guide plate located at the discharge slot 49, a support base 410 disposed on the main control mechanism 3, a lead screw linear motion part 412 connected to the support base 410, a drive block 413 located on the lead screw linear motion part 412, and a pusher seat 414 disposed on the drive block 413; the support base 410 is provided with a pusher slot for placing drill rods; the rotary motor 46 and the rotating wheel 47 are connected by a belt.

[0061] Once the drill rod is in the placement slot 48, the rotary motor 46 starts working. The rotating motor 46 drives the rotating wheel 47 to rotate via a belt. The rotating wheel 47 drives the drill rod to move, allowing the drill rod to fall onto the guide plate and then onto the support seat 410. Then, the linear motion part 412 of the lead screw starts working. The linear motion part 412 of the lead screw adjusts the position of the drive block 413, causing the push seat 414 to abut against one end of the drill rod, pushing the drill rod to move on the support seat 410. This allows the drill rod to abut against the drill rod located on the drilling mechanism 2. Then, by operating the hand, the two drill rods rotate relative to each other, allowing the latter drill rod to be installed on the former, ensuring the smooth progress of the hole-making work.

[0062] The entire material loading process, from drill pipe pre-installation, conveying, and guiding to propulsion docking and installation, is completed collaboratively by components such as the rotary motor 46 and the linear motion unit 412 of the lead screw. This eliminates the need for operators to manually handle and push the drill pipe, effectively reducing the labor intensity of downhole workers. It also avoids operational errors such as bumps, slippage, and misalignment that may occur during manual handling of drill pipes, reducing safety hazards such as personnel injury and equipment damage, and significantly improving the safety and standardization of material loading operations.

[0063] The equipment also includes detection units 5 symmetrically arranged on both sides of the feeding unit 4. The detection units 5 are used to detect the drill rod of the casing structure. The detection unit 5 includes a support frame 51 fixedly installed on the mounting base 411, a displacement mechanism 52 connected to the support frame 51, a displacement frame 53 disposed on the displacement mechanism 52, a rotary motor 54 fixedly installed on the displacement frame 53, a drive shaft 55 disposed at the output end of the rotary motor 54, a transmission part 510 connected to the drive shaft 55, a connecting frame 56 disposed on the displacement frame 53, and a connecting frame 56 connected to the connecting frame 510. The system includes a mounting bracket 58 connected to the transmission part 510, a first detection part 57 connected to and abutting against the mounting bracket 58, and a second detection part 59 disposed on the transmission part 510. A gap is reserved between the first detection part 57 and the second detection part 59 so that the inner tube of the drill rod is located between the first detection part 57 and the second detection part 59. The first detection part 57 is used to detect the inner wall of the inner tube, and the second detection part 59 is used to detect the inner wall of the outer tube. The first detection part 57 and the second detection part 59 can move along the axial direction of the drill rod, and the distance of movement is greater than half the length of the drill rod.

[0064] When inspection is required, the displacement mechanism 52 can adjust the position of the rotating motor 54 and allow the first detection part 57 and the second detection part 59 to be inserted into the drill rod. At this time, the inner tube in the drill rod can be located between the first detection part 57 and the second detection part 59. Through the movement of the displacement mechanism 52, the first detection part 57 and the second detection part 59 can be inserted into the drill rod and move along the axis of the drill rod, thereby changing the detection area of ​​the first detection part 57 and the second detection part 59 and completing the inspection of the drill rod.

[0065] The transmission unit 510 includes a first rotating frame 5101 connected to the drive shaft 55, a transmission component 5102 disposed on the first rotating frame 5101, a second rotating frame 5103 connected to the transmission component 5102, and a driven tube 5104 disposed on the second rotating frame 5103; the inner wall of the first rotating frame 5101 is provided with a drive groove, and there is a preset angle between the plane formed by the drive groove and the bottom plane of the first rotating frame 5101; the second detection unit 59 is disposed on the driven tube 5104, and the first detection unit 57 is connected to the first rotating frame 5101; when one end of the drill rod abuts against the first rotating frame 5101, the second detection unit 59 is located at the farthest end and the moving distance of the second detection unit 59 is greater than half the length of the drill rod;

[0066] When the first detection unit 57 and the second detection unit 59 need to rotate to complete the inspection of the inner wall of the drill pipe's inner or outer tube, the rotary motor 54 starts working. The rotating motor 54 drives the drive shaft 55 to rotate, which in turn drives the first rotating frame 5101 to rotate. The first rotating frame 5101 then drives the transmission component 5102 to move, which in turn drives the second rotating frame 5103 to move. The second rotating frame 5103 then drives the driven tube 5104 to move. In this process, the first detection unit 57 is connected to the first rotating frame 5101, and the second detection unit 59 is connected to the driven tube 5104. The rotation speed of the first rotating frame 5101 is greater than the speed of the second rotating frame 5103, thus enabling the inspection of the inner and outer tubes in the drill pipe to be completed.

[0067] The transmission component 5102 includes multiple V-shaped connecting slots arranged circumferentially on the second rotating frame 5103, with adjacent connecting slots connected to each other to form a closed slot; the second rotating frame 5103 is provided with a driven tube 5104, an L-shaped slide rail 51023 sleeved on the driven tube 5104, a first transmission block 51021 slidably connected to the slide rail 51023, and two protrusions 51022 symmetrically arranged on the first transmission block 51021; one protrusion 51022 is located in the drive slot, and the other protrusion 51022 is located in the closed slot; wherein the line connecting the inner wall inflection point and the outer wall inflection point of the V-shaped connecting slot has an angle with the axial direction of the second rotating frame 5103, so that the protrusion 51022 can smoothly pass over the inflection point;

[0068] When the first rotating frame 5101 starts working, the moving first rotating frame 5101 can drive one of the protrusions 51022 to move through the drive groove. The protrusion 51022 can drive the first transmission block 51021 to move on the slide rail 51023, so that the first transmission block 51021 can drive the other protrusion 51022 to move in the closed groove. Since there is an angle between the line connecting the inner wall inflection point and the outer wall inflection point of the V-shaped connecting groove and the axis of the second rotating frame 5103, the protrusion 51022 can smoothly pass the inflection point, thereby driving the second rotating frame 5103 to rotate, thereby adjusting the detection area of ​​the second detection unit 59.

[0069] This equipment achieves synchronized rotation of the first rotating frame 5101 and the second rotating frame 5103 through the coordinated operation of the V-shaped closed groove and the drive groove. It can precisely control the speed difference between the two, meaning the first rotating frame 5101 rotates at a higher speed than the second rotating frame 5103. This allows for simultaneous inspection of the inner and outer walls of the drill pipe, eliminating the need for separate inspections and significantly improving inspection efficiency. It avoids wasted time due to repetitive work and meets the high-efficiency inspection requirements of downhole drilling operations. Furthermore, the higher speed of the first rotating frame 5101 compared to the second rotating frame 5103 precisely adapts to the differentiated inspection needs of the outer and inner tubes of the drill pipe. The larger inner diameter and wider circumferential inspection range of the outer tube allow for rapid and comprehensive scanning of the inner wall, effectively accelerating the overall inspection pace. The narrow and confined space of the inner tube necessitates a low-speed rotation mode, ensuring stable operation of the inspection components and preventing scratches, collisions, and structural interference within the confined space, thus protecting the inspection components and ensuring their proper functioning.

[0070] The two testing units work in staggered shifts at different speeds, enabling efficient and comprehensive inspection of the outer tube and stable and precise detection of the inner tube. They do not interfere with each other and provide complete coverage, completely avoiding blind spots in the inspection and steadily improving the accuracy of identifying damage and defects on the inner and outer walls of the drill pipe and the reliability of continuous operation of the equipment.

[0071] The second detection unit 59 includes a connecting frame 591 fixedly installed on the driven tube 5104, a support rod 593 disposed on the connecting frame 591 and slidably connected to the connecting frame 591, a sliding seat 592 connected to the support rod 593, a return spring 594 for connecting the sliding seat 592 and the connecting frame 591, an abutment block 595 disposed at one end of the support rod 593, and an electrode plate located in the abutment block 595;

[0072] When the second detection unit 59 is performing detection work, if there is a concave area in the inner tube, the space in the inner tube will become smaller, which will prevent the second detection unit 59 from entering the inner tube, resulting in the actual adjustment distance of the displacement mechanism 52 being less than the expected adjustment distance.

[0073] Conversely, when a protrusion 51022 appears in the inner tube, the connecting frame 591 is located in the inner tube. At this time, under the action of the reset spring 594, the abutment block 595 can abut against the inner wall of the inner tube. During the abutment process, the electrode plate in the abutment block 595 is squeezed against the inner wall of the inner tube, which causes the electrode plate to deform. When it is located at the position of the protrusion 51022, the deformation of the electrode plate changes. At this time, the capacitance acquisition module can receive the change in the resistance of the electrode plate, and thus detect the deformation of the inner tube, thereby completing the detection of the inner tube.

[0074] This device uses mechanical extrusion to trigger electrode deformation, and in conjunction with a capacitance acquisition module, it captures resistance changes in real time, converting mechanical deformation into electrical signal feedback. The detection response is sensitive, and it can accurately capture minute deformations of the inner wall, resulting in higher detection accuracy.

[0075] The first detection unit 57 includes a rotating seat 571 connected to the first rotating frame 5101, a support column 572 disposed on the rotating seat 571, an adjusting block 573 sleeved on the support column 572 and slidably connected to the support column 572, a second drive wheel 574 disposed on the adjusting block 573, and a visual detector disposed on the adjusting block 573; the mounting frame 58 is also provided with a first limiting ring 581 and a second limiting ring 582; wherein the first limiting ring 581 and the second limiting ring 582 have the same structure; the first limiting ring 581 is provided with a recess and a protrusion, and a transition portion for connecting the recess and the protrusion; wherein the protrusion of the first limiting ring 581 and the recess of the second limiting ring 582 are directly opposite each other, and a certain distance is reserved between the first limiting ring 581 and the second limiting ring 582.

[0076] When the first detection unit 57 needs to perform detection work, the first rotating frame 5101 can drive the rotating seat 571 to rotate. The rotating seat 571 can drive the support column 572 to rotate. Since the mounting frame 58 is in a fixed state, the second drive wheel 574 can move between the first limiting ring 581 and the second limiting ring 582, thereby moving in the axial direction of the mounting frame 58. When the displacement mechanism 52 is not in working state, the vision detector can perform not only axial but also circumferential detection work, thereby completing the visual inspection of the inner wall of the outer tube.

[0077] The limiting ring is composed of a concave part, a convex part, and a transition part. The transition structure is smooth and gentle, which can ensure the smooth operation of the second drive wheel 574. The sliding switching process is smooth and without jamming or impact, so that the movement rhythm of the vision detector is uniform and stable, avoiding the blurring of the image caused by violent shaking, and ensuring the clarity and completeness of the visual acquisition image. The vision detector can simultaneously complete circumferential scanning and axial depth detection, forming an all-round three-dimensional detection range, achieving continuous and uninterrupted coverage of the inner wall of the outer tube, effectively eliminating local detection blind spots, and greatly improving detection coverage. The first limiting ring 581 and the second limiting ring 582 are arranged with concave and convex parts facing each other, and cooperate with each other to form a constraint guide channel, forming a bidirectional limit for the second drive wheel 574, effectively preventing the problem of disengagement or deviation during movement.

[0078] The drill rod has a casing structure, with a smaller diameter pipe used for transporting high-pressure water flow and a larger diameter pipe used for transporting high-pressure air flow. The combination of high-pressure water flow and high-pressure air flow enables the mechanical cutter to unfold and clean the hole. The electrode plate is connected to a capacitance acquisition module via a cable to collect the electrode plate deformation. If the electrode plate deformation is too small, it indicates that a bulge has occurred on the inner tube.

[0079] In a further embodiment, the transport mechanism 1, drilling mechanism 2, drilling unit 22, displacement mechanism 52, lead screw linear motion unit 412 and main control mechanism 3 are prior art, and the displacement mechanism 52 and capacitance acquisition module are prior art, including but not limited to telescopic cylinders.

[0080] Working principle description: After the drilling mechanism 2 is transported to the predetermined position in the roadway by the transport mechanism 1, the column 21 can be changed from a folded state to a vertical state because the drive cylinder 23 is movably connected to the first hinge seat 24. Then, the bottom of the column 21 is fixed to the base 27 by bolts. At this time, the second hinge seat 25 is located in the third hinge seat 28. The operator can complete the connection and fixation work between the second hinge seat 25 and the third hinge seat 28 by the set pin 26. Then, the cylinder is used to connect the drilling part 22 and the base 27, so that the drilling machine can be positioned in the predetermined position to ensure the smooth progress of the hole making work in the roadway. At this time, the drive cylinder 23 starts to work. The moving drive cylinder 23 can drive the connecting seat 29 to move in the length direction of the column 21, changing the height of the drilling part 22. Then the cylinder starts to work. The moving cylinder can make the drilling part 22 rotate around the connecting seat 29, adjusting the angle between the drilling part 22 and the roadway surface, thereby completing the hole making work for straight or inclined holes.

[0081] After the position adjustment of the drilling mechanism 2 is completed, the drill rod can be placed into the placement groove 48 on the circumferential direction of the rotating wheel 47 by the robot arm. At this time, the propulsion cylinder 42 starts to work. The moving propulsion cylinder 42 can drive the propulsion block 43 to move, so that the propulsion block 43 can drive the first drive wheel 44 to move in the limiting groove, change the position of the pressure ball 45, so that the pressure ball 45 can abut against the outer wall of the drill rod in the placement groove 48, limit the drill rod, and prevent the drill rod from detaching from the rotating wheel 47 during the rotation of the rotating wheel 47.

[0082] Once the drill rod is in the placement slot 48, the rotary motor 46 starts working. The rotating motor 46 drives the rotating wheel 47 to rotate via a belt. The rotating wheel 47 drives the drill rod to move, allowing the drill rod to fall onto the guide plate and then onto the support seat 410. Then, the linear motion part 412 of the lead screw starts working. The linear motion part 412 of the lead screw adjusts the position of the drive block 413, causing the push seat 414 to abut against one end of the drill rod, pushing the drill rod to move on the support seat 410. This allows the drill rod to abut against the drill rod located on the drilling mechanism 2. Then, by operating the hand, the two drill rods rotate relative to each other, allowing the latter drill rod to be installed on the former, ensuring the smooth progress of the hole-making work.

[0083] When inspection is required, the displacement mechanism 52 can adjust the position of the rotating motor 54 and allow the first inspection part 57 and the second inspection part 59 to be inserted into the drill rod. At this time, the inner tube in the drill rod can be located between the first inspection part 57 and the second inspection part 59. Through the movement of the displacement mechanism 52, the first inspection part 57 and the second inspection part 59 can be inserted into the drill rod and move along the axis of the drill rod, thereby changing the inspection area of ​​the first inspection part 57 and the second inspection part 59 and completing the inspection of the drill rod.

[0084] When the first detection unit 57 and the second detection unit 59 need to rotate to complete the inspection of the inner wall of the drill pipe's inner or outer tube, the rotary motor 54 starts working. The rotating motor 54 drives the drive shaft 55 to rotate, which in turn drives the first rotating frame 5101 to rotate. The first rotating frame 5101 then drives the transmission component 5102 to move, which in turn drives the second rotating frame 5103 to move. The second rotating frame 5103 then drives the driven tube 5104 to move. In this process, the first detection unit 57 is connected to the first rotating frame 5101, and the second detection unit 59 is connected to the driven tube 5104. The rotation speed of the first rotating frame 5101 is greater than the speed of the second rotating frame 5103, thus enabling the inspection of the inner and outer tubes in the drill pipe to be completed.

[0085] When the first rotating frame 5101 starts working, the moving first rotating frame 5101 can drive one of the protrusions 51022 to move through the drive groove. The protrusion 51022 can drive the first transmission block 51021 to move on the slide rail 51023, so that the first transmission block 51021 can drive the other protrusion 51022 to move in the closed groove. Since there is an angle between the line connecting the inner wall inflection point and the outer wall inflection point of the V-shaped connecting groove and the axis of the second rotating frame 5103, the protrusion 51022 can smoothly pass the inflection point, thereby driving the second rotating frame 5103 to rotate, thereby adjusting the detection area of ​​the second detection unit 59.

[0086] When the second detection unit 59 is performing detection work, if there is a concave area in the inner tube, the space in the inner tube will become smaller, which will prevent the second detection unit 59 from entering the inner tube, resulting in the actual adjustment distance of the displacement mechanism 52 being less than the expected adjustment distance.

[0087] Conversely, when a protrusion 51022 appears in the inner tube, the connecting frame 591 is located inside the inner tube. At this time, driven by the return spring 594, the abutment block 595 abuts against the inner wall of the inner tube. During this abutment, the electrode plate in the abutment block 595 is squeezed against the inner wall of the inner tube, causing the electrode plate to deform. When it is located at the protrusion 51022, the deformation of the electrode plate changes. The capacitance acquisition module can then detect the change in resistance of the electrode plate, thereby detecting the deformation of the inner tube and completing the inner tube inspection. When the first inspection is required... When part 57 is performing inspection work, the first rotating frame 5101 can drive the rotating seat 571 to rotate. The rotating seat 571 can drive the support column 572 to rotate. Since the mounting frame 58 is in a fixed state, the second drive wheel 574 can move between the first limiting ring 581 and the second limiting ring 582, thereby moving in the axial direction of the mounting frame 58. When the displacement mechanism 52 is not in working state, the vision detector can perform not only axial but also circumferential inspection work, thereby completing the visual inspection of the inner wall of the outer tube.

[0088] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A folding and transporting device for drilling rig columns suitable for confined spaces, characterized in that, include: Drilling mechanism (2) is used for creating holes in coal mines; The transport mechanism (1) is connected to the drilling mechanism (2) and is used to transport the drilling mechanism (2) to the preset drilling position; The main control mechanism (3) is installed on the transportation mechanism (1); The feeding unit (4) is installed on the main control mechanism (3) and is used for the transportation and inspection of drill rods; The drilling mechanism (2) includes a base (27) fixedly installed on the transport mechanism (1), at least two columns (21) screwed to the base (27), a first hinge seat (24) disposed on one side of the column (21), a drive cylinder (23) movably connected to the first hinge seat (24), and a connecting seat (29) for connecting the drive cylinder (23) and the column (21). The first hinge (24) is movably connected to the drive cylinder (23), so that the column (21) changes from a flat position to a vertical position and the column (21) is installed on the base (27) by bolts.

2. The drilling rig column folding and transporting device suitable for confined spaces according to claim 1, characterized in that: The drilling mechanism (2) further includes a drilling section (22) for connecting two connecting seats (29) and movably connected to the connecting seats (29), a cylinder provided on the drilling section (22), a second hinge seat (25) fixedly installed on the column (21), and a third hinge seat (28) provided on the base (27). After the column (21) becomes vertical, the second hinge seat (25) and the third hinge seat (28) are connected by the pin (26); The other end of the cylinder is movably connected to the base (27).

3. A folding and transporting device for drilling rig columns suitable for confined spaces according to claim 2, characterized in that: The feeding unit (4) includes a mounting base (411) fixedly installed on the main control mechanism (3), three limiting seats (41) fixedly connected to the mounting base (411), a propulsion cylinder (42) set on one of the limiting seats (41), limiting grooves opened on the remaining two limiting seats (41), a propulsion block (43) connected to the output end of the propulsion cylinder (42), a first drive wheel (44) symmetrically arranged on the propulsion block (43) and located in the limiting groove, and a pressure ball (45) set on the propulsion block (43).

4. A folding and transporting device for drilling rig columns suitable for confined spaces according to claim 3, characterized in that: The feeding unit (4) further includes a rotary motor (46) fixedly installed on the mounting base (411), a rotating wheel (47) provided on the mounting base (411), a plurality of placement slots (48) opened in the circumferential direction of the rotating wheel (47), a feeding slot (49) opened on the mounting base (411), a guide plate located at the feeding slot (49), a support base (410) provided on the main control mechanism (3), a lead screw linear motion part (412) connected to the support base (410), a drive block (413) located on the lead screw linear motion part (412), and a pusher (414) provided on the drive block (413). The support base (410) is provided with a feed groove for placing the drill rod; The rotary motor (46) and the rotating wheel (47) are connected by a belt.

5. A folding and transporting device for drilling rig columns suitable for confined spaces according to claim 4, characterized in that: It also includes detection units (5) symmetrically arranged on both sides of the feeding unit (4), the detection units (5) being used to detect the drill rod of the casing structure; The detection unit (5) includes a support frame (51) fixedly mounted on the mounting base (411), a displacement mechanism (52) connected to the support frame (51), a displacement frame (53) disposed on the displacement mechanism (52), a rotary motor (54) fixedly mounted on the displacement frame (53), a drive shaft (55) disposed at the output end of the rotary motor (54), a transmission part (510) connected to the drive shaft (55), a connecting frame (56) disposed on the displacement frame (53), a mounting frame (58) connected to the connecting frame (56), a first detection part (57) connected to the transmission part (510) and abutting against the mounting frame (58), and a second detection part (59) disposed on the transmission part (510). A gap is reserved between the first detection part (57) and the second detection part (59) so that the inner tube of the drill rod is located between the first detection part (57) and the second detection part (59). The first detection part (57) is used to detect the inner wall of the inner tube, and the second detection part (59) is used to detect the inner wall of the outer tube. The first detection unit (57) and the second detection unit (59) are capable of moving along the drill pipe axis and the distance of movement is greater than half the length of the drill pipe.

6. A folding and transporting device for drilling rig columns suitable for confined spaces according to claim 5, characterized in that: The transmission unit (510) includes a first rotating frame (5101) connected to the drive shaft (55), a transmission member (5102) disposed on the first rotating frame (5101), a second rotating frame (5103) connected to the transmission member (5102), and a driven tube (5104) disposed on the second rotating frame (5103). The inner wall of the first rotating frame (5101) is provided with a drive groove, and there is a preset angle between the plane formed by the drive groove and the bottom plane of the first rotating frame (5101); The second detection unit (59) is disposed on the driven tube (5104), and the first detection unit (57) is connected to the first rotating frame (5101); When one end of the drill rod comes into contact with the first rotating frame (5101), the second detection unit (59) is located at the farthest end and the moving distance of the second detection unit (59) is greater than half the length of the drill rod.

7. A folding and transporting device for drilling rig columns suitable for confined spaces according to claim 6, characterized in that: The transmission component (5102) includes a plurality of V-shaped connecting grooves arranged in the circumferential direction of the second rotating frame (5103), with adjacent connecting grooves connected to each other to form a closed groove; The second rotating frame (5103) is provided with a driven tube (5104), an L-shaped slide rail (51023) sleeved on the driven tube (5104), a first transmission block (51021) slidably connected to the slide rail (51023), and two protrusions (51022) symmetrically arranged on the first transmission block (51021). One of the protrusions (51022) is located in the drive groove, and the other protrusion (51022) is located in the closed groove; The line connecting the inner and outer corners of the V-shaped connecting groove forms an angle with the axis of the second rotating frame (5103), allowing the protrusion (51022) to smoothly pass over the corner.

8. A folding and transporting device for drilling rig columns suitable for confined spaces according to claim 7, characterized in that: The second detection unit (59) includes a connecting frame (591) fixedly installed on the driven tube (5104), a support rod (593) disposed on the connecting frame (591) and slidably connected to the connecting frame (591), a sliding seat (592) connected to the support rod (593), a return spring (594) for connecting the sliding seat (592) and the connecting frame (591), an abutment block (595) disposed at one end of the support rod (593), and an electrode plate located in the abutment block (595).

9. A folding and transporting device for drilling rig columns suitable for confined spaces according to claim 8, characterized in that: The first detection unit (57) includes a rotating seat (571) connected to the first rotating frame (5101), a support column (572) disposed on the rotating seat (571), an adjustment block (573) sleeved on the support column (572) and slidably connected to the support column (572), a second drive wheel (574) disposed on the adjustment block (573), and a vision detector disposed on the adjustment block (573).

10. A folding and transporting device for drilling rig columns suitable for confined spaces according to claim 9, characterized in that: The mounting bracket (58) is also provided with a first limiting ring (581) and a second limiting ring (582); The first limiting ring (581) and the second limiting ring (582) have the same structure; The first limiting ring (581) is provided with a recess and a protrusion, as well as a transition portion for connecting the recess and the protrusion; The protrusion of the first limiting ring (581) is directly opposite the recess of the second limiting ring (582).

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