Anchor cable drilling machine support for roadway supporting

Abstract

The invention discloses an anchor cable drilling machine support for roadway supporting, belongs to the field of anchor cable drilling machine supports for coal mine roadways, and aims at solving the problem that when an anchor cable drilling machine drills holes under surrounding rocks with different hardness, the stability of the support is poor. The length of the portion, extending out of the first storage box, of the toothed plate can be adjusted according to the hardness of the surrounding rock by matching a first electric push rod with a micro electric push rod and the toothed plate, the toothed plate is made of high-hardness alloy steel, the road holding force is enhanced through the special tooth shape of the toothed plate, the tooth depth is increased in a soft rock section, and the support is prevented from sliding. The toothed plate retracts in a hard rock section, abrasion is reduced, the toothed plate can provide self-adaptive road holding force for the supporting plate in surrounding rocks with different hardness by combining with the adjustable tooth depth, and therefore the overall stability of the support is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine tunnel anchor drill rig supports, and particularly relates to an anchor drill rig support for tunnel support. Background Art

[0002] Anchor drilling rigs are mainly used in landslide and dangerous rock anchoring projects in the prevention and control of various geological disasters on the slopes of hydropower stations, railways, and highways. They are suitable for the construction of coal mine tunnel support, anti-floating anchor rods and foundation grouting reinforcement holes, blasting holes in blasting projects, high-pressure jet jet piles, tunnel pipe support holes, etc. Anchor drilling rigs need to be supported by a bracket when in use.

[0003] When existing anchor drilling rigs drill holes in unevenly hard surrounding rocks, the drill bit encounters different resistance in different hardness areas, which is prone to generating deflection force. After this deflection force is transmitted to the drilling rig support, it is easily subjected to additional torque and lateral force, thereby affecting its stability and may also cause the drilling direction to deviate from the designed route. For this reason, we propose an anchor drilling rig support for tunnel support. Summary of the Invention

[0004] The object of the present invention is to provide an anchor cable drilling rig support for tunnel support, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an anchor cable drilling rig support for tunnel support, comprising a support plate, a front-to-back symmetrically arranged electric push rod 1 being installed on the top of the support plate, a storage box 1 being installed on the output end of the electric push rod 1 passing through the top of the support plate, a uniformly arranged micro electric push rod being installed on the top wall of the storage box 1, a slide groove 1 being provided through the bottom of the storage box 1, a tooth plate being installed on the output end of the micro electric push rod, and the tooth plate being located on the inner side of the slide groove 1;

[0006] The tooth plate is made of high-hardness alloy steel, and the bottom tooth shape is triangular or trapezoidal. The micro electric push rod is used to adjust the length of the tooth plate extending out of the storage box, and the adjustment range is 10 to 50 mm.

[0007] In the above implementation process, an electric push rod and an adjustable storage box are set at a height to adapt to the working requirements at different heights. The micro electric push rod is matched with a tooth plate. The tooth plate is made of high-hardness alloy steel, and the bottom tooth shape is triangular or trapezoidal, which can enhance the friction with the ground or surrounding rock. The tooth plate can provide better grip for the bracket in surrounding rock environments with different hardness, improve stability, and control the tooth plate to increase the tooth depth in soft rock areas through the cooperation of the electric push rod and the micro electric push rod to prevent the bracket from sliding, and retract the tooth plate in hard rock areas to reduce wear.

[0008] In a specific embodiment, a storage slot is provided through the top of the support plate, and the storage slot is located in the middle of two groups of electric push rods 1, a storage plate is installed at the bottom of the support plate, and the storage plate is L-shaped, a servo electric cylinder is installed on the top of the storage plate, and the output end of the servo electric cylinder is movably installed with a lifting hinge plate 1 through a connecting piece, and both ends of the lifting hinge plate 1 are movably installed with hinge seats arranged front and back, and the lifting hinge plate 2 is movably installed on the surfaces of the two left groups of hinge seats that are close to each other, and the lifting hinge plate 2 is located above the lifting hinge plate 1, and an angle adjustment component is installed on the top of the lifting hinge plate 1, and the angle adjustment component is used to adjust the inclination angle of the lifting hinge plate 2;

[0009] Multiple sets of protective sleeves are installed at the top center positions of the support plate, storage plate and lifting hinged plate. A buffer assembly is arranged inside the protective sleeve, and the buffer assembly is used to provide different sizes of buffer damping according to the hardness of the surrounding rock in the tunnel.

[0010] In the above implementation process, the storage plate and the servo electric cylinder cooperate with the lifting hinge plate one and the lifting hinge plate one and two to achieve further flexible adjustment of the bracket height to adapt to different tunnel heights. The angle adjustment component can adjust the inclination angle of the lifting hinge plate two, so that the drilling rig is at the optimal working angle during drilling, improving the drilling accuracy. At the same time, the drilling inclination angle can also be adjusted during the drilling process. The design of the buffer component can achieve graded buffering by applying different damping forces through the hydraulic damper according to the hardness of the surrounding rock, thereby reducing the impact of vibration during drilling on the bracket.

[0011] In a specific embodiment, a horizontal limit assembly is installed on the top of the lifting hinge plate 2, and a drilling rig electric slide rail is installed on the top of the horizontal limit assembly. The bottom and one side outer wall of the lifting hinge plate 2 and the drilling rig electric slide rail are installed with equidistantly arranged laser ranging sensors and machine vision cameras, and the machine vision camera is located on one side of the laser ranging sensor. The laser ranging sensor uses a fuzzy PID algorithm to calculate the offset of the lifting hinge plate 2 in real time.

[0012] In the above implementation process, the horizontal limit component can fix the electric slide rails of the drilling rig of different lengths, enhance the stability of the drilling rig in the horizontal direction, and adapt to drilling rigs of various specifications. The laser ranging sensor and the machine vision camera cooperate to construct a three-dimensional space coordinate system, and use the fuzzy PID algorithm to calculate the offset of the lifting hinge plate 2 in real time. It can timely detect the offset of the bracket, and adjust the position of the drilling rig and the drilling inclination angle through the angle adjustment component when the lifting hinge plate 2 is detected to be offset or tilted, to ensure the drilling accuracy and reduce the error of the drilling rig in hole position offset caused by the hardness or softness of the rock formation and the unevenness of the slope.

[0013] In a specific embodiment, the buffer assembly includes a hydraulic damper and a spring. The tops of the support plate, the storage plate and the lifting hinge plate 1 can be detachably installed with hydraulic dampers, and the outer diameter of the hydraulic damper is smaller than the inner diameter of the protective sleeve. The tops of multiple groups of the hydraulic dampers are movably connected to the bottoms of the servo cylinder, the lifting hinge plate 1 and the lifting hinge plate 2 through connecting parts, and the outer surface of the hydraulic damper is sleeved with a spring.

[0014] In the above implementation process, the hydraulic damper can provide a stable damping force, and the spring can assist in buffering and enhance the elasticity of the buffer component. When drilling in hard rock, the hydraulic damper provides a damping force of 20kN, and when drilling in soft rock, it provides a flexible buffer of 5kN. When drilling in surrounding rocks of different hardness, it can effectively absorb and buffer the vibration generated by the drilling rig. At the same time, it can also collect the reaction force of the drilling rig during drilling by arranging sensors on the drilling rig, and adjust the depth of the tooth plate and the damping force of the hydraulic damper according to the collected reaction force data, so that the bracket can automatically adapt to different surrounding rock hardness environments.

[0015] In a specific embodiment, the angle adjustment assembly includes a storage frame, a reciprocating screw, a slider and a hinged rod. The top of the lifting hinge plate is equipped with a storage frame arranged in front and behind, and a servo motor is installed on the outer wall of one side of the storage frame. The output end of the servo motor passes through the interior of the storage frame and is equipped with a reciprocating screw, and one end of the reciprocating screw is connected to the inner wall of one side of the storage frame through a shaft. The outer surface of the reciprocating screw is sleeved with a slider, and the top of the slider is movably equipped with a hinged rod through a connecting seat, and one end of the hinged rod is movably connected to the bottom of the lifting hinge plate 2 through a connecting member.

[0016] In the above implementation process, when the drilling rig angle needs to be adjusted, the servo motor 1 is started, and the motor rotates forward or reverse, driving the reciprocating screw to rotate, and the slider 1 moves left and right on the reciprocating screw. During the movement of the slider 1, the lifting hinge plate 2 is pushed to rotate around the hinge seat through the hinge rod, thereby realizing the adjustment of the inclination angle of the lifting hinge plate 2.

[0017] In a specific embodiment, the horizontal limit assembly includes a storage box two, a servo motor two, a bidirectional screw rod, a slider two and a fixed slider. The top of the lifting hinge plate two is installed with a storage box two arranged in the front and rear, and the tops of the two groups of the storage boxes two are penetrated by a slide groove two, and the outer wall of one side of the two groups of the storage boxes two is installed with a servo motor two. The output end of the servo motor two passes through the interior of the storage box two and is installed with a bidirectional screw rod, and one end of the bidirectional screw rod is connected to the inner wall of one side of the storage box two through a shaft. The outer surface of the bidirectional screw rod is sleeved with a symmetrically arranged slider two, and the tops of the two groups of the sliders two are installed with a fixed slider, and the fixed slider is used to fix the drilling rig electric slide rails of different lengths on the lifting hinge plate two.

[0018] In the above implementation process, when installing the drilling rig electric slide rail, start the servo motor 2, and control the forward and reverse rotation of the motor according to the slide rail length requirement to rotate the bidirectional screw rod, drive the slider 2 to move toward or in the opposite direction on the bidirectional screw rod, adjust the spacing of the fixed sliders, and place the drilling rig electric slide rail on the fixed slider to complete the fixation, which is convenient for changing the connection and fixing point between the drilling rig electric slide rail and the drilling rig electric slide rail according to different lengths, and then fix the drilling rig electric slide rails of different lengths, which can enhance the versatility of the bracket.

[0019] In a specific embodiment, the hydraulic damper provides a damping force of 20 kN under hard rock conditions and a flexible buffer of 5 kN under soft rock conditions.

[0020] In the above implementation process, the hydraulic damper can provide different sizes of damping force according to the hard rock and soft rock working conditions. It provides a larger damping force under hard rock conditions to effectively resist the strong vibration of the drill rig during drilling. It provides flexible buffering under soft rock conditions to avoid excessive damage to the soft rock, thereby ensuring the stability and adaptability of the bracket under conditions of different surrounding rock hardness. Without additional operation, the hydraulic damper will automatically switch the damping force mode according to the surrounding rock hardness. When drilling in hard rock tunnels, it automatically provides a damping force of 20kN. When drilling in soft rock tunnels, it automatically switches to a flexible buffer of 5kN.

[0021] In a specific embodiment, the laser distance measuring sensor is electrically connected to the servo motor 1, and the servo motor 1 is started when the laser distance measuring sensor detects that the lifting hinge plate 2 is offset and tilted.

[0022] In the above implementation process, when it is detected that the lifting hinge plate 2 is offset and tilted, the signal is immediately transmitted to the servo motor 1. When the servo motor 1 is started, the angle of the lifting hinge plate 2 is adjusted through the angle adjustment component until the laser ranging sensor detects that the offset has returned to the normal range, thereby improving the quality and accuracy of drilling.

[0023] In a specific embodiment, an anchor drill body is provided inside the drilling rig electric slide rail.

[0024] In the above implementation process, the anchor drill body is installed inside the drill rig electric slide rail. By controlling the movement of the drill rig electric slide rail, the anchor drill body is moved and positioned in the horizontal direction. After the positioning is completed, the anchor drill body is started to perform drilling operations.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention uses an electric push rod in conjunction with a micro electric push rod and a tooth plate, and can adjust the length of the tooth plate extending out of the storage box according to the hardness of the surrounding rock. The tooth plate is made of high-hardness alloy steel and has enhanced grip through its special tooth shape. The tooth depth is increased in soft rock areas to prevent the bracket from sliding, and the tooth plate is retracted in hard rock areas to reduce wear. By combining with the adjustable tooth depth, the tooth plate can provide adaptive grip for the support plate in surrounding rocks of different hardness, thereby improving the overall stability of the bracket.

[0027] 2. The present invention can flexibly adjust the height of the bracket to meet the needs of different tunnel operations through the cooperation of the storage plate, servo electric cylinder, lifting hinge plate 1 and lifting hinge plate 2. The angle adjustment component can not only adjust the angle of the drill rig before the bracket is used to put the drill rig in the best working condition, but also adjust the drilling inclination angle according to actual use needs during drilling, reducing the error of hole position offset caused by the hardness of the rock formation and the unevenness of the slope.

[0028] 3. The present invention uses a buffer assembly composed of a hydraulic damper and a spring to automatically switch the damping force according to the hardness of the surrounding rock, absorb drilling vibration, and avoid bracket offset or drilling error caused by vibration. At the same time, through the laser ranging sensor, machine vision camera and fuzzy PID algorithm, the offset of the bracket is detected and calculated in real time, and the servo motor is automatically triggered to adjust the drilling rig angle and position to ensure accurate drilling direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the planar assembly of the storage box 1, the miniature electric push rod and the gear plate of the present invention;

[0031] Figure 3 is a plan view of the present invention;

[0032] Figure 4 Schematic diagram of the three-dimensional structure of the support plate of the present invention;

[0033] Figure 5 It is a schematic diagram of the planar assembly structure of the horizontal limit assembly of the present invention;

[0034] Figure 6 This is a schematic diagram of the planar assembly structure of the angle adjustment assembly of the present invention;

[0035] Figure 7 It is a three-dimensional assembly diagram of the lifting hinge plate 2 of the present invention;

[0036] Figure 8 is a schematic diagram of the three-dimensional structure of the buffer assembly of the present invention;

[0037] Figure 9It is a schematic diagram of the three-dimensional structure of the lifting hinge plate 1 and the lifting hinge plate 2 of the present invention;

[0038] Figure 10 It is a schematic side-sectional three-dimensional structural diagram of the support plate of the present invention.

[0039] In the figure: 1. Support plate; 2. Electric push rod 1; 3. Storage box 1; 4. Micro electric push rod; 5. Slide 1; 6. Tooth plate; 7. Storage slot; 8. Storage plate; 9. Servo cylinder; 10. Lifting hinge plate 1; 11. Articulated seat; 12. Lifting hinge plate 2; 13. Protective sleeve; 14. Hydraulic damper; 15. Spring; 16. Storage frame; 17. Reciprocating screw; 18. Slider 1; 19. Articulated rod; 20. Storage box 2; 21. Servo motor 2; 22. Bidirectional screw; 23. Slider 2; 24. Fixed slider; 25. Drilling rig electric slide rail; 26. Anchor drill rig body; 27. Laser ranging sensor. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See also Figure 1 、 Figure 2 and Figure 3 The present invention provides an anchor drill rig support for tunnel support, comprising a support plate 1, the top of the support plate 1 is equipped with an electric push rod 2 arranged symmetrically in front and back, the output end of the electric push rod 2 passes through the top of the support plate 1 and is equipped with a storage box 3, the top wall of the storage box 3 is equipped with evenly arranged micro electric push rods 4, the bottom of the storage box 3 is penetrated by a slide groove 5, the output end of the micro electric push rod 4 is equipped with a tooth plate 6, and the tooth plate 6 is located on the inner side of the slide groove 5, the tooth plate 6 is made of high-hardness alloy steel, and the tooth shape of its bottom is triangular or trapezoidal, and the micro electric push rod 4 is used to adjust the length of the tooth plate 6 extending out of the storage box 3, and the adjustment range is 10 to 50 mm.

[0042] Furthermore, when using the anchor drill rig bracket, first move the bracket to the position where the hole needs to be drilled, then start the electric push rod 2, push the storage box 3 downward, so that the tooth plate 6 can contact the tunnel ground, and during the drilling process, the micro electric push rod 4 can be started according to the detected reaction force of the drilling rig to push the tooth plate 6 to move tilted downward or upward to match the hardness of the surrounding rock. Under soft rock conditions, the tooth plate 6 extends 40 mm and is deeply embedded in the surrounding rock. Under hard rock conditions, the tooth plate 6 extends 10 mm. The shallow teeth rub against the rock surface to prevent slipping and enhance grip. Combined with the set buffer component, rigid anchoring + flexible shock absorption is achieved to achieve dual stability of the bracket, which can reduce the amount of bracket slippage and improve drilling efficiency. At the same time, it can also reduce the impact on the stability of the drilling rig bracket when drilling on surrounding rocks of different hardness.

[0043] See also Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 10The present invention provides a support for an anchor drill rig for tunnel support. A storage groove 7 is provided on the top of the support plate 1, and the storage groove 7 is located in the middle of two sets of electric push rods 2. A storage plate 8 is installed at the bottom of the support plate 1, and the storage plate 8 is in an L-shaped structure. A servo electric cylinder 9 is installed on the top of the storage plate 8. The output end of the servo electric cylinder 9 is movably installed with a lifting hinge plate 10 through a connecting piece. Both ends of the lifting hinge plate 10 are movably installed with hinge seats 11 arranged front and back. The surfaces of the two sets of hinge seats 11 on the left side that are close to each other are movably installed with lifting hinge plates 12. 2, and the lifting hinge plate 2 12 is located above the lifting hinge plate 10, and the top of the lifting hinge plate 10 is equipped with an angle adjustment component, and the angle adjustment component is used to adjust the inclination angle of the lifting hinge plate 2 12, the support plate 1, the storage plate 8 and the top center of the lifting hinge plate 10 are equipped with multiple sets of protective sleeves 13, and the interior of the protective sleeve 13 is provided with a buffer component, and the buffer component is used to provide different sizes of buffer damping according to the different hardness of the surrounding rock in the tunnel, and the buffer component includes a hydraulic damper 14 and a spring 15, the support plate 1, the storage plate 8 The top of the lifting hinge plate 10 is detachably mounted with a hydraulic damper 14, and the outer diameter of the hydraulic damper 14 is smaller than the inner diameter of the protective sleeve 13. The tops of the multiple groups of hydraulic dampers 14 are movably connected to the servo cylinder 9, the lifting hinge plate 10 and the bottom of the lifting hinge plate 2 12 through connectors. The outer surface of the hydraulic damper 14 is sleeved with a spring 15. The angle adjustment assembly includes a storage frame 16, a reciprocating screw rod 17, a slider 18 and a hinge rod 19. The top of the lifting hinge plate 10 is mounted with a storage frame 16 arranged front and back. The storage frame 16 A servo motor 1 is installed on the outer wall of one side, and the output end of the servo motor 1 passes through the interior of the storage frame 16 and is installed with a reciprocating screw 17. One end of the reciprocating screw 17 is connected to the inner wall of one side of the storage frame 16 through a shaft. A slider 18 is sleeved on the outer surface of the reciprocating screw 17. A hinged rod 19 is movably installed on the top of the slider 18 through a connecting seat. One end of the hinged rod 19 is movably connected to the bottom of the lifting hinge plate 2 12 through a connecting piece. The hydraulic damper 14 provides a damping force of 20kN under hard rock conditions and provides a flexible buffer of 5kN under soft rock conditions.

[0044] Furthermore, the servo electric cylinder 9 is started, and its output end pushes the lifting hinge plate 10 to move through the connecting piece, so that the lifting hinge plate 10 can tilt upward, and then the servo motor 1 on one side of the storage frame 16 is started to drive the reciprocating screw 17 to rotate, so that the slider 18 can move to the left along the reciprocating screw 17, and then the lifting hinge plate 2 12 can be pushed to rotate in the hinge seat 11 under the action of the hinge rod 19, so as to adjust the overall height of the bracket to adapt to the height of the roadway. At the same time, the inclination angle of the drilling rig can be adjusted by the angle adjustment component during drilling to meet the requirements of different drilling angles and improve the applicability and accuracy of the drilling operation.

[0045] During the drilling process, the hardness of the surrounding rock can be detected by multiple sets of sensors arranged on the anchor drill rig body 26. The size of the collected reaction force can be used to determine whether the surrounding rock in the drilling area is hard rock or soft rock. According to the hardness of the surrounding rock, the hydraulic damper 14 automatically provides the corresponding damping force, providing 20kN of damping force under hard rock conditions and 5kN of flexible buffering under soft rock conditions. The spring 15 assists in buffering, reducing the impact of vibration on the drilling rig and the bracket, extending their service life, and reducing equipment maintenance costs.

[0046] See also Figure 3 、 Figure 6 and Figure 9 The present invention provides an anchor cable drilling rig bracket for tunnel support, wherein a horizontal limit assembly is installed on the top of a lifting hinged plate 12, and a drilling rig electric slide rail 25 is installed on the top of the horizontal limit assembly. Laser ranging sensors 27 and machine vision cameras arranged at equal intervals are installed on the bottom and one side outer wall of the lifting hinged plate 12 and the drilling rig electric slide rail 25, and the machine vision camera is located on one side of the laser ranging sensor 27. The laser ranging sensor 27 uses a fuzzy PID algorithm to calculate the offset of the lifting hinged plate 12 in real time. An anchor cable drilling rig body 26 is provided inside the drilling rig electric slide rail 25, and the horizontal limit assembly includes a storage box 20, a servo motor 21, a bidirectional screw rod 22, a slider 23 and a fixed slider 24. A front The storage box 20 is arranged at the back, and the top of the two groups of storage boxes 20 are both penetrated by a slide groove 2, and the outer wall of one side of the two groups of storage boxes 20 is installed with a servo motor 21. The output end of the servo motor 21 passes through the interior of the storage box 20 and is installed with a bidirectional screw rod 22, and one end of the bidirectional screw rod 22 is connected to the inner wall of one side of the storage box 20 through a shaft. The outer surface of the bidirectional screw rod 22 is provided with a symmetrically arranged slider 23, and the top of the two groups of sliders 23 is installed with a fixed slider 24. The fixed slider 24 is used to fix the drilling rig electric slide rails 25 of different lengths on the lifting hinge plate 2 12. The laser ranging sensor 27 is electrically connected to the servo motor 1. When the laser ranging sensor 27 detects that the lifting hinge plate 2 12 is offset and tilted, the servo motor 1 starts.

[0047] Furthermore, the horizontal limit assembly is used to install drilling rig electric slide rails 25 of different lengths. Before using the anchor drilling rig bracket, the servo motor 21 is first started to drive the bidirectional screw rod 22 to rotate, so that the two sets of sliders 23 can move closer or farther away from each other, thereby adjusting the spacing between the fixed sliders 24. Then, the drilling rig electric slide rail 25 can be fixed on the lifting hinge plate 2 12.

[0048] Before drilling, the distance between the laser ranging sensor 27 on one side of the lifting hinge plate 2 12 and the drill rig electric slide 25 and the roadway rock wall is A, the distance between the laser ranging sensor 27 at the bottom of the lifting hinge plate 2 12 and the top surface of the lifting hinge plate 1 10 is B, and the distance between the laser ranging sensor 27 at the bottom of the drill rig electric slide 25 and the roadway rock wall is C;

[0049] During the drilling process, the distance between the laser ranging sensor 27 on one side of the lifting hinge plate 2 12 and the electric slide rail 25 of the drilling rig and the roadway rock wall is A', the distance between the laser ranging sensor 27 at the bottom of the lifting hinge plate 2 12 and the top surface of the lifting hinge plate 1 10 is B', and the distance between the laser ranging sensor 27 at the bottom of the electric slide rail 25 of the drilling rig and the roadway rock wall is C';

[0050] Whether the lifting hinge plate 2 12 is tilted and whether the drilling inclination angle of the drilling rig has changed is determined based on the numerical changes of A and A′, B and B′, and C and C′ before and after drilling. When it is detected that the numerical change fluctuation exceeds the initially set threshold range, the signal is immediately transmitted to the servo motor 1. At this time, the servo motor 1 starts and drives the angle adjustment component to move according to the preset program to adjust the inclination angle of the lifting hinge plate 2 12 until the laser ranging sensor 27 detects that the offset has returned to the normal range, thereby reducing the probability of drilling inclination angle deviation due to the different hardness of the rock formation during the drilling process.

[0051] The working principle and usage process of the present invention are as follows: before using the anchor drilling rig support, first, according to the length of the drilling rig electric slide 25, start the servo motor 21, control the rotation of the bidirectional screw rod 22, drive the two sets of sliders 23 to move closer or farther from each other, thereby adjusting the spacing between the fixed sliders 24, and then the drilling rig electric slide 25 can be fixed on the lifting hinge plate 2 12. In subsequent use, according to the height of the roadway, start the electric push rod 1 2 to adjust the height of the storage box 1 3, and then start the micro electric push rod 4 to adjust the extension length of the tooth plate 6;

[0052] Then, the servo electric cylinder 9 is started to push the lifting hinge plate 10 to move. At this time, the lifting hinge plate 10 will tilt upward under the action of the hinge seat 11. Then, the servo motor 1 is started to drive the reciprocating screw 17 to rotate, so that the slider 18 can move to the left in the storage frame 16. During the movement of the slider 18, the hinge rod 19 is driven to tilt upward, thereby pushing the lifting hinge plate 2 12 to rotate in the hinge seat 11 on the left, thereby adjusting the bracket height and the drilling position;

[0053] During the drilling process, the reaction size of the drilling rig is detected according to the sensor arranged on the anchor drill rig body 26, so as to facilitate the further adjustment of the extension length of the tooth plate 6 according to the hardness of the surrounding rock. The tooth plate 6 is appropriately extended in the soft rock section and retracted in the hard rock section. At the same time, the laser ranging sensor 27 and the machine vision camera monitor the offset of the lifting hinge plate 2 12 in real time. If an offset is detected, the laser ranging sensor 27 transmits the signal to the servo motor 1, and the drilling rig position and drilling inclination are adjusted through the angle adjustment component. At the same time, during the drilling process, the hydraulic damper 14 and the spring 15 provide corresponding buffer damping according to the hardness of the surrounding rock to reduce the impact of vibration.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An anchor cable drilling rig support for tunnel support, comprising a support plate (1), characterized in that: The top of the support plate (1) is provided with an electric push rod (2) arranged symmetrically in front and back, the output end of the electric push rod (2) passes through the top of the support plate (1) and is provided with a storage box (3), the top wall of the storage box (3) is provided with evenly arranged micro electric push rods (4), the bottom of the storage box (3) is provided with a slide groove (5), the output end of the micro electric push rod (4) is provided with a tooth plate (6), and the tooth plate (6) is located on the inner side of the slide groove (5); The tooth plate (6) is made of high-hardness alloy steel, and the bottom tooth shape is triangular or trapezoidal. The micro electric push rod (4) is used to adjust the length of the tooth plate (6) extending out of the storage box (3), and the adjustment range is 10 to 50 mm.

2. The anchor cable drilling rig support for tunnel support according to claim 1, characterized in that: The top of the support plate (1) is provided with a storage slot (7), and the storage slot (7) is located in the middle of two groups of electric push rods (2). The bottom of the support plate (1) is provided with a storage plate (8), and the storage plate (8) is in an L-shaped structure. The top of the storage plate (8) is provided with a servo electric cylinder (9), and the output end of the servo electric cylinder (9) is movably provided with a lifting hinge plate (10) through a connecting piece. Both ends of the lifting hinge plate (10) are movably provided with front-to-back arranged hinge seats (11). The surfaces of the two left groups of hinge seats (11) close to each other are movably provided with a lifting hinge plate (12), and the lifting hinge plate (12) is located above the lifting hinge plate (10). The top of the lifting hinge plate (10) is provided with an angle adjustment component, and the angle adjustment component is used to adjust the tilt angle of the lifting hinge plate (12). A plurality of protective sleeves (13) are installed at the top center positions of the support plate (1), the storage plate (8) and the lifting hinge plate (10). A buffer assembly is provided inside the protective sleeve (13), and the buffer assembly is used to provide different sizes of buffer damping according to the hardness of the surrounding rock in the tunnel.

3. The anchor cable drilling rig support for tunnel support according to claim 2, characterized in that: A horizontal limit assembly is installed on the top of the lifting hinge plate 2 (12), and a drilling rig electric slide rail (25) is installed on the top of the horizontal limit assembly. The bottom and one side outer wall of the lifting hinge plate 2 (12) and the drilling rig electric slide rail (25) are both installed with laser distance sensors (27) and machine vision cameras arranged at equal intervals, and the machine vision camera is located on one side of the laser distance sensor (27). The laser distance sensor (27) uses a fuzzy PID algorithm to calculate the offset of the lifting hinge plate 2 (12) in real time.

4. The anchor cable drilling rig support for tunnel support according to claim 2, characterized in that: The buffer assembly includes a hydraulic damper (14) and a spring (15). The tops of the support plate (1), the storage plate (8) and the lifting hinge plate (10) are all detachably mounted with hydraulic dampers (14), and the outer diameter of the hydraulic damper (14) is smaller than the inner diameter of the protective sleeve (13). The tops of multiple groups of the hydraulic dampers (14) are movably connected to the bottoms of the servo electric cylinder (9), the lifting hinge plate (10) and the lifting hinge plate (12) through connecting parts, and the outer surface of the hydraulic damper (14) is sleeved with a spring (15).

5. The anchor cable drilling rig support for tunnel support according to claim 2, characterized in that: The angle adjustment assembly includes a storage frame (16), a reciprocating screw (17), a slider (18) and a hinge rod (19). The top of the lifting hinge plate (10) is equipped with a storage frame (16) arranged in front and back. A servo motor (1) is installed on the outer wall of one side of the storage frame (16). The output end of the servo motor (1) passes through the interior of the storage frame (16) and is equipped with a reciprocating screw (17). One end of the reciprocating screw (17) is connected to the inner wall of one side of the storage frame (16) through a shaft. The outer surface of the reciprocating screw (17) is sleeved with a slider (18). The top of the slider (18) is movably equipped with a hinge rod (19) through a connecting seat. One end of the hinge rod (19) is movably connected to the bottom of the lifting hinge plate (12) through a connecting piece.

6. The anchor cable drilling rig support for tunnel support according to claim 3, characterized in that: The horizontal limit assembly includes a second storage box (20), a second servo motor (21), a bidirectional screw rod (22), a second slider (23) and a fixed slider (24). The top of the second lifting hinge plate (12) is equipped with a second storage box (20) arranged in the front and rear. The tops of the two groups of the second storage boxes (20) are both provided with a second slide. The outer wall of one side of the two groups of the second storage boxes (20) is equipped with a second servo motor (21). The output end of the second servo motor (21) is connected to the second storage box (20). A bidirectional screw rod (22) is installed inside the second storage box (20), and one end of the bidirectional screw rod (22) is connected to the inner wall of one side of the second storage box (20) through a shaft. The outer surface of the bidirectional screw rod (22) is provided with a symmetrically arranged slider two (23). The tops of the two groups of the slider two (23) are both installed with fixed sliders (24). The fixed sliders (24) are used to fix the drilling rig electric slide rails (25) of different lengths on the lifting hinge plate two (12).

7. The anchor cable drilling rig support for tunnel support according to claim 4, characterized in that: The hydraulic damper (14) provides a damping force of 20 kN under hard rock conditions and a flexible buffer of 5 kN under soft rock conditions.

8. The anchor cable drilling rig support for tunnel support according to claim 5, characterized in that: The laser distance measuring sensor (27) is electrically connected to the servo motor 1, and the servo motor 1 is started when the laser distance measuring sensor (27) detects that the lifting hinge plate 2 (12) is offset and tilted.

9. The anchor cable drilling rig support for tunnel support according to claim 3, characterized in that: An anchor drill body (26) is provided inside the drilling rig electric slide rail (25).

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