Automatic positioning device for large-section tunnel blasting borehole

Abstract

The application discloses a large-section tunnel blasting borehole automatic positioning device, which comprises a drilling and rock drilling vehicle body, a control box is installed on one side of the top end of the drilling and rock drilling vehicle body, a drawing checking box is installed at the bottom end of the one side of the control box, a lifting mechanical arm is arranged at the front end of the drilling and rock drilling vehicle body, the checking mechanism comprises a laser lamp, the laser lamp is installed on one side of a lifting table, a guide rail is installed on one side of the lifting table below the laser lamp, an L-shaped checking plate is installed in the guide rail, the top end of the L-shaped checking plate is connected with the bottom end of a pushing bottom plate, a light transmission hole is formed in the L-shaped checking plate, the laser lamp projects a drilling point on a rock wall, the L-shaped checking plate is synchronously moved along the guide rail according to the laser position, and the light transmission hole transmits the corresponding laser lamp until the light transmission hole transmits the corresponding laser lamp, so that the drilling position of the rock drilling rod is accurately positioned. The cooperation of the two groups of scraper brushes guarantees the advancing stability of the drilling and rock drilling vehicle body.

Description

Technical Field

[0001] This invention relates to the field of drilling rig technology, and in particular to an automatic positioning device for blasting holes in large-section tunnels. Background Technology

[0002] A rock drilling rig is a type of rock drilling equipment used in tunnel and underground engineering projects using the drill-and-blast method. It is mainly used for drilling operations in rock tunnels, using impact force to propel the drill bit into the rock layer.

[0003] Before drilling, existing drilling rigs require technicians to use flashlights to illuminate the drilling points on the working face. Drilling is done at the illuminated location, relying heavily on experience. This often results in holes that deviate significantly from the design drawings. Additionally, during the drill rod resetting process after drilling, some small pieces of rock are carried out with the drill rod. However, existing drilling rigs do not have a cleaning mechanism to collect this rock. If too much rock remains on the drill rod, it may cause the drill rod to get stuck during later drilling. Therefore, there is room for improvement. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic positioning device for blasting holes in large-section tunnels, so as to solve the problems mentioned in the background art that existing tunnel drilling rigs are not easy to accurately position for drilling, and are not easy to clean the drilling rod and collect the crushed stone.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic positioning device for blasting holes in large-section tunnels, comprising a drilling and rock-drilling vehicle body, a control box installed on one side of the top of the drilling and rock-drilling vehicle body, a drawing verification box installed at the bottom of one side of the control box, a control panel installed at the top of one side of the control box, a lifting mechanical arm provided at the front end of the drilling and rock-drilling vehicle body, a lifting platform installed at one end of the lifting mechanical arm, an adjusting motor installed on one side inside the lifting platform, a lead screw installed at one end of the adjusting motor, a movable sleeve sleeved around the lead screw, and the top end of the movable sleeve extending to the outside of the lifting platform and fitted with a propulsion base plate. A calibration mechanism is provided on one side of the lowering platform. A support plate is installed on one side of the top of the propulsion base plate, and a guide plate is installed on the top of the propulsion base plate on the side of the support plate. An electric telescopic rod is installed on one side of the support plate, and a rotating motor is installed at one end of the electric telescopic rod. A rock drill rod is installed at one end of the rotating motor, and one end of the rock drill rod passes through the guide plate. A cleaning mechanism is provided on the top of the propulsion base plate on the side of the rock drill rod, and guide rods are installed on both sides of the bottom end of the propulsion base plate below the cleaning mechanism. A sliding sleeve is fitted on the outside of each guide rod, and a cloth basket is connected to one side of the sliding sleeve. A support spring is wound around the outside of each guide rod below the cloth basket.

[0006] When using the automatic positioning device for blasting boreholes in a large-section tunnel according to this technical solution, the rock drill rod is cleaned during the repositioning process by the cooperation of two sets of scraper brushes, so that the gravel and dust on its surface can fall off. Combined with the function of the basket, it can collect gravel and other materials to avoid the gravel falling directly to the ground and causing unevenness. This ensures the forward stability of the drilling and rock drilling vehicle. With the cooperation of support springs and guide rods, the basket can slide down smoothly, which facilitates the handling of gravel and other materials by ground personnel and improves the convenience of handling operations.

[0007] Preferably, the interior of the drawing proofreading box is uniformly provided with a grid, and the intersection of the grid is the coordinate point of the pre-drilled hole.

[0008] Preferably, the rock drill rod consists of a smooth rod at one end and a spiral blade rod at the other end, and the top end of the rock drill rod is hexagonal pyramidal.

[0009] Preferably, the cleaning mechanism includes a fixing plate, which is installed on one side of the top of the propulsion base plate. Locking bolts are evenly installed between the fixing plate and the propulsion base plate. Scraper brushes are installed on both sides of the top of the fixing plate, with the scraping surfaces of the scraper brushes facing each other. One side of each scraper brush abuts against the spiral blade end of the rock drill rod.

[0010] Preferably, the calibration mechanism includes a laser light, which is installed on one side of the lifting platform. A guide rail is installed on one side of the lifting platform below the laser light, and an L-shaped calibration plate is installed inside the guide rail. The top of the L-shaped calibration plate is connected to the bottom of the push base plate, and a light-transmitting hole is opened inside the L-shaped calibration plate.

[0011] Preferably, the laser lights are arranged at equal intervals on the lifting platform, the number of laser lights is the same as the number of horizontal coordinates in the drawing proofreading box, and the position and size of the light-transmitting holes correspond to the position and size of the laser lights.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the automatic positioning device for blasting holes in large-section tunnels not only facilitates the calibration and positioning of drilling points, but also enables the cleaning of rock drill rods and the collection of crushed stone.

[0013] (1) By using the drawing calibration box and control panel, the staff can determine the drilling position on the drawing in advance. Under the control panel, the lifting mechanical arm is raised and lowered, and the laser light corresponding to the drawing position is activated, so that the laser shines on the working face to locate the drilling point on the rock wall. Under the action of the calibration mechanism, the light hole is adjusted to align with the laser light to check and confirm the position of the rock drill rod, which helps to ensure the accuracy of the drilling point. This calibration method avoids the need for manual hand-held flashlight illumination, and its convenience and accuracy are improved, thereby ensuring the efficiency of subsequent work.

[0014] (2) By using two sets of scraper brushes, the rock drill rod is cleaned during the resetting process so that the gravel and dust on its surface can fall off. Combined with the function of the basket, the gravel can be picked up to avoid the gravel falling directly to the ground and causing unevenness. This ensures the forward stability of the main body of the drilling rock drill. With the support spring and guide rod, the basket can slide down smoothly so that ground personnel can move the gravel and improve the convenience of the handling operation.

[0015] (3) The laser lamp projects the drilling point onto the rock wall. The operator of the drilling rig starts the adjustment motor according to the laser position, causing the lead screw to rotate, thereby moving the movable sleeve left and right, which in turn moves the propulsion base plate left and right, and makes the L-shaped calibration plate move synchronously along the guide rail until the light-transmitting hole transmits light to the corresponding laser lamp, so as to accurately locate the drilling position of the rock drill rod. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0018] Figure 2 This is a side view schematic diagram of the distribution structure of the support springs of the present invention;

[0019] Figure 3 This is a side view of the drawing proofreading box of the present invention.

[0020] Figure 4 This is a side view of the lifting platform structure of the present invention;

[0021] Figure 5This is a three-dimensional structural diagram of the cleaning mechanism of the present invention.

[0022] The following are the annotations in the diagram: 1. Main body of the drilling and rock drilling vehicle; 2. Control box; 3. Drawing correction box; 4. Control panel; 5. Lifting mechanical arm; 6. Lifting platform; 7. Propulsion base plate; 8. Support plate; 9. Electric telescopic rod; 10. Rotary motor; 11. Rock drilling rod; 12. Cleaning mechanism; 1201. Scraper brush; 1202. Fixing plate; 1203. Locking bolt; 13. Cloth basket; 14. Guide rod; 15. Correction mechanism; 1501. L-shaped correction plate; 1502. Light-transmitting hole; 1503. Laser light; 1504. Guide rail; 16. Movable sleeve; 17. Lead screw; 18. Adjusting motor; 19. Guide plate; 20. Sliding sleeve; 21. Support spring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-5 An embodiment of the present invention provides an automatic positioning device for blasting holes in large-section tunnels, comprising a drilling and rock drilling vehicle body 1, a control box 2 installed on one side of the top of the drilling and rock drilling vehicle body 1, and a drawing verification box 3 installed at the bottom of one side of the control box 2.

[0025] The interior of drawing proofreading box 3 is evenly gridded, and the intersection of the grid points are the coordinates of the pre-drilled hole positions;

[0026] Specifically, such as Figure 1 and Figure 3 As shown, during use, the drawing verification box 3 is used to confirm the drilling points on the drawing. Then, the control panel 4 is used to input the specific drilling points. The lifting robotic arm 5 and the laser light 1503 are used to locate the drilling points, reducing the need for manual hand-held flashlights and improving the accuracy of the drilling points.

[0027] A control panel 4 is installed on the top of one side of the control box 2. A lifting mechanical arm 5 is provided at the front end of the main body 1 of the drilling and rock drilling vehicle. A lifting platform 6 is installed at one end of the lifting mechanical arm 5. An adjusting motor 18 is installed on one side inside the lifting platform 6. A lead screw 17 is installed at one end of the adjusting motor 18. A movable sleeve 16 is sleeved on the outside of the lead screw 17. The top of the movable sleeve 16 extends to the outside of the lifting platform 6 and is equipped with a push base plate 7. A calibration mechanism 15 is provided on one side of the lifting platform 6.

[0028] The calibration mechanism 15 includes a laser light 1503, which is installed on one side of the lifting platform 6. A guide rail 1504 is installed on one side of the lifting platform 6 below the laser light 1503. An L-shaped calibration plate 1501 is installed inside the guide rail 1504. The top of the L-shaped calibration plate 1501 is connected to the bottom of the push base plate 7. A light-transmitting hole 1502 is opened inside the L-shaped calibration plate 1501.

[0029] Laser lights 1503 are arranged at equal intervals on the lifting platform 6. The number of laser lights 1503 is the same as the number of horizontal coordinates in the drawing proofing box 3. The position and size of the light-transmitting hole 1502 correspond to the position and size of the laser lights 1503.

[0030] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, during use, by adjusting the start of the motor 18, the movable sleeve 16 drives the push base plate 7 to move left and right, thereby causing the L-shaped calibration plate 1501 to move synchronously, so as to align the light-transmitting hole 1502 with the irradiated laser lamp 1503, so as to calibrate the position of the rock drill rod 11 in the wall.

[0031] A support plate 8 is installed on one side of the top of the push base plate 7, and a guide plate 19 is installed on the top of the push base plate 7 on one side of the support plate 8. An electric telescopic rod 9 is installed on one side of the support plate 8, and a rotating motor 10 is provided at one end of the electric telescopic rod 9. A rock drilling rod 11 is installed at one end of the rotating motor 10.

[0032] The rock drill rod 11 consists of a smooth rod at one end and a spiral blade rod at the other end, and the top of the rock drill rod 11 is hexagonal pyramidal.

[0033] Specifically, such as Figure 1 As shown, during use, the spiral blades are designed to allow the top of the rock drill rod 11 to drill into the rock wall by rotating forward, thereby achieving the purpose of drilling. With the cooperation of the smooth rod and the guide plate 19, the entire rock drill rod 11 is supported and guided to ensure its stable operation.

[0034] Furthermore, one end of the rock drill rod 11 passes through the guide plate 19, and a cleaning mechanism 12 is provided at the top of the push base plate 7 on one side of the rock drill rod 11.

[0035] The cleaning mechanism 12 includes a fixing plate 1202, which is installed on one side of the top of the push base plate 7. Locking bolts 1203 are evenly installed between the fixing plate 1202 and the push base plate 7. Scraper brushes 1201 are installed on both sides of the top of the fixing plate 1202, and the scraping surfaces of the scraper brushes 1201 face each other. One side of each scraper brush 1201 abuts against the spiral blade end of the rock drill rod 11.

[0036] Furthermore, guide rods 14 are installed on both sides of the bottom end of the push base plate 7 below the cleaning mechanism 12. Sliding sleeves 20 are fitted on the outside of the guide rods 14. A cloth basket 13 is connected to one side of the sliding sleeve 20. Support springs 21 are wound around the outside of the guide rods 14 below the cloth basket 13.

[0037] Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, during use, the scraper brush 1201 is used to scrape and clean the surface of the rock drill rod 11, and the cloth basket 13 is used to catch fallen rocks and other debris.

[0038] Working principle: When using this invention, firstly, the main body 1 of the drilling and rock drilling vehicle is driven to the front end of the tunnel drilling hole, the drawing is placed in the drawing calibration box 3, and the corresponding calibration point of the drawing is input through the control panel 4 according to the coordinate situation. Then, the control panel 4 starts the lifting mechanical arm 5 according to the coordinate situation, raises the lifting platform 6 to the corresponding position, and then activates the laser light 1503 of the corresponding coordinate point.

[0039] Secondly, the laser lamp 1503 projects the drilling point onto the rock wall. The operator of the drilling and rock drilling vehicle 1 operates the start adjustment motor 18 according to the laser position, so that the lead screw 17 rotates, thereby causing the movable sleeve 16 to move left and right, so as to drive the propulsion base plate 7 to move left and right, and so that the L-shaped calibration plate 1501 moves synchronously along the guide rail 1504 until the light-transmitting hole 1502 transmits light to the corresponding laser lamp 1503, so as to accurately locate the drilling position of the rock drilling rod 11.

[0040] Finally, the electric telescopic rod 9 is extended, and the rotating motor 10 is started simultaneously, causing the rock drill rod 11 to rotate and extend forward along the guide plate 19, thereby drilling a hole in the rock wall. After drilling is completed, the rock drill rod 11 is reset. Since the scraper brush 1201 is always in contact with the rock drill rod 11, the scraper brush 1201 cleans the surface of the rock drill rod 11 during the reset process, causing the residual gravel to fall into the basket 13. After cleaning is completed, the basket 13 is centered, and then under the action of gravity, the sliding sleeve 20 slides down along the guide rod 14, thereby compressing the support spring 21, so that the position of the basket 13 can be lowered, so that the gravel in the basket 13 can be cleaned in time.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic positioning device for blasting boreholes in large-section tunnels, comprising a drilling and rock-drilling vehicle body (1), characterized in that: A control box (2) is installed on one side of the top of the main body (1) of the drilling and rock drilling vehicle, and a drawing verification box (3) is installed at the bottom of one side of the control box (2). A control panel (4) is installed at the top of one side of the control box (2). A lifting mechanical arm (5) is provided at the front end of the main body (1) of the drilling and rock drilling vehicle, and a lifting platform (6) is installed at one end of the lifting mechanical arm (5). An adjusting motor (18) is installed on one side inside the lifting platform (6), and a lead screw (17) is installed at one end of the adjusting motor (18). A movable sleeve (16) is sleeved on the outside of the lead screw (17), and the top of the movable sleeve (16) extends to the outside of the lifting platform (6) and is equipped with a propulsion base plate (7). A verification mechanism (15) is provided on one side of the lifting platform (6), and a support plate (8) is installed on one side of the top of the propulsion base plate (7). And a guide plate (19) is installed on the top of the push base plate (7) on one side of the support plate (8). An electric telescopic rod (9) is installed on one side of the support plate (8). A rotating motor (10) is provided at one end of the electric telescopic rod (9). A rock drill rod (11) is installed at one end of the rotating motor (10). One end of the rock drill rod (11) passes through the guide plate (19). A cleaning mechanism (12) is provided on the top of the push base plate (7) on one side of the rock drill rod (11). Guide rods (14) are installed on both sides of the bottom end of the push base plate (7) below the cleaning mechanism (12). Sliding sleeves (20) are fitted on the outside of the guide rods (14). A cloth basket (13) is connected to one side of the sliding sleeve (20). A support spring (21) is wound around the outside of the guide rods (14) below the cloth basket (13). The calibration mechanism (15) includes a laser lamp (1503), and the laser lamp (1503) is installed on one side of the lifting platform (6). A guide rail (1504) is installed on one side of the lifting platform (6) below the laser lamp (1503), and an L-shaped calibration plate (1501) is installed inside the guide rail (1504). The top of the L-shaped calibration plate (1501) is connected to the bottom of the push base plate (7), and a light-transmitting hole (1502) is opened inside the L-shaped calibration plate (1501). The laser lights (1503) are arranged at equal intervals on the lifting platform (6). The number of laser lights (1503) is the same as the number of horizontal coordinates in the drawing proofreading box (3). The position and size of the light-transmitting hole (1502) correspond to the position and size of the laser lights (1503). The drawing verification box (3) has a grid evenly arranged inside, and the intersection of the grid is the coordinate point of the pre-drilled hole position. The drawing verification box (3) is used to confirm the drilling point on the drawing, and then the control panel (4) is used to input the specific drilling point. The lifting mechanical arm (5) and the laser light (1503) are used to locate the drilling point.

2. The automatic positioning device for blasting boreholes in large-section tunnels according to claim 1, characterized in that: The rock drill rod (11) consists of a smooth rod at one end and a spiral blade rod at the other end, and the top of the rock drill rod (11) is hexagonal pyramidal.

3. The automatic positioning device for blasting boreholes in large-section tunnels according to claim 1, characterized in that: The cleaning mechanism (12) includes a fixing plate (1202), which is installed on one side of the top of the propulsion base plate (7). Locking bolts (1203) are evenly installed between the fixing plate (1202) and the propulsion base plate (7). Scraper brushes (1201) are installed on both sides of the top of the fixing plate (1202), and the scraping surfaces of the scraper brushes (1201) are facing each other. One side of the scraper brushes (1201) abuts against the spiral blade end of the rock drill rod (11).

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