A tunnel drilling positioning device

Abstract

The utility model relates to related technical fields of tunnel drilling positioning device, concretely to a tunnel drilling positioning device, include: roof, the bottom fixed connection of roof has fixed link, the bottom outer surface of fixed link is equipped with the sleeve, the bottom fixed connection of sleeve has bottom plate, the outside of sleeve is evenly provided with five number of outer bracing plate. The utility model discloses through the cooperation of roof, fixed link, sleeve, bottom plate, outer bracing plate and linkage mechanism, the user can control outer bracing plate and move to the tunnel inner wall simultaneously, and then fixes the device at the center place inside the tunnel, improves the precision that the device sets up the center hole inside the tunnel, and the existing tunnel drilling positioning device does not have the function of center positioning to the device, when the device drills in the tunnel, can not guarantee that the hole position of drilling is at the center of the tunnel, leads to the problem of the big error of tunnel construction.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel borehole positioning devices, specifically a tunnel borehole positioning device. Background Technology

[0002] Auxiliary positioning devices for tunnel drilling refer to advanced positioning technologies used in tunnel drilling construction to provide accurate guidance and positioning information for drilling machinery. This ensures that the drilling path conforms to design requirements and assists operators in controlling drilling accuracy. It consists of a device composed of sensors, measuring equipment, and a data processing system installed on the tunnel wall or underground rock strata. This device monitors the position, attitude, and direction of travel of the drilling machinery in real time, thereby guiding its movement and achieving precise positioning and control.

[0003] Utility model patent CN220890103U discloses an auxiliary positioning device for tunnel drilling, belonging to the technical field of tunnel drilling auxiliary devices. It addresses the problems in existing technologies where, due to the large size of the drilling device, significant vibration occurs during operation, leading to poor stability of the fixed platform. Furthermore, the fixed platform's fixed shape means that the drilling angle may not meet design requirements in uneven drilling locations, causing difficulties for subsequent work. The device includes a ring-shaped support with circumferentially evenly spaced outer walls. The ring is equipped with four drive motors and four fixed drill bits. This utility model uses a ring bracket, four drive motors and four fixed drill bits to set the drilling device on top of the sliding bracket. After the ring bracket is set at the designated drilling position, the drive motor is started, and its output end drives the fixed drill bit to rotate, so that the bottom of the fixed drill bit extends into the ground until it is in contact with the ground surface and then fixed. This ensures that the bottom of the drilling device has a sufficiently stable supporting force to support it when it is working. By distributing the rotation of the four drive motors, it can be flexibly controlled when facing different depths at four different angles.

[0004] However, the above patent still has shortcomings: although it can flexibly control the depth when facing four different angles, it does not have the function of center positioning of the device. When the device drills inside the tunnel, it cannot guarantee that the hole is in the center of the tunnel, which leads to a large error in tunnel construction. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a tunnel drilling positioning device to solve the problem that the existing tunnel drilling positioning devices mentioned in the background art do not have the function of centering the device. When drilling inside the tunnel, the device cannot guarantee that the hole position is in the center of the tunnel, which leads to a large error in tunnel construction.

[0006] The technical solution of this utility model is:

[0007] A tunnel drilling positioning device includes: a top plate; a fixing rod fixedly connected to the bottom of the top plate, a sleeve sleeved on the bottom outer surface of the fixing rod, a bottom plate fixedly connected to the bottom of the sleeve, and five outer support plates evenly arranged on the outer side of the sleeve; a linkage mechanism for center positioning of the device is provided on the side of each outer support plate near the sleeve; and a power mechanism for drilling the tunnel is provided inside the sleeve.

[0008] Preferably, the linkage mechanism includes: a first fixing block slidably connected to the side of the outer support plate near the sleeve; a first rotating shaft rotatably connected inside each of the first fixing blocks; a first linkage rod fixedly connected to the outer surfaces of both ends of the first rotating shaft; a second fixing block provided at the end of each first linkage rod away from the first fixing block; a second rotating shaft rotatably connected inside each of the second fixing blocks; both ends of the second rotating shaft are connected to the first linkage rod; a second linkage rod is provided between each of the two first linkage rods; a third rotating shaft is fixedly connected to the middle of each of the second linkage rods; both ends of the third rotating shaft are rotatably connected to the first linkage rod; a fourth rotating shaft is fixedly connected to one end of the second linkage rod; a third fixing block is fixedly connected to the outer surfaces of both ends of the fourth rotating shaft; the third fixing block is fixedly connected to the fixing rod; a fifth rotating shaft is fixedly connected to the end of each second linkage rod away from the fourth rotating shaft; a fourth fixing block is fixedly connected to the outer surfaces of both ends of the fifth rotating shaft; the fourth fixing blocks are slidably connected to the outer support plate; and a telescopic mechanism for controlling the sleeve to slide on the outer surface of the fixing rod is provided at the top of the top plate.

[0009] Preferably, the telescopic mechanism includes: a first hydraulic cylinder fixedly connected to the top of the top plate, the telescopic end of the first hydraulic cylinder passing through the top plate and extending to the slide rod, the slide rod being fixedly connected to the telescopic end of the first hydraulic cylinder; the bottom end of the slide rod passing through the fixed rod and extending to the partition, the partition being fixedly connected to the slide rod, and the partition being fixedly connected to the sleeve.

[0010] Preferably, the power mechanism includes: a second hydraulic cylinder is disposed inside the sleeve, the second hydraulic cylinder is fixedly connected to the base plate; the telescopic end of the second hydraulic cylinder passes through the base plate and extends to the drilling machine, the drilling machine is fixedly connected to the telescopic end of the second hydraulic cylinder, and a replaceable drill bit is disposed at the bottom of the drilling machine.

[0011] Preferably, both the first fixing block and the fourth fixing block are fixedly connected to a slider on the side near the outer support plate, and the outer support plate is provided with a matching groove near the slider, and the slider is slidably connected to the groove.

[0012] Preferably, five limiting blocks are evenly arranged on the bottom outer surface of the fixing rod, and each limiting block is fixedly connected to the fixing rod. Each sleeve has a stroke groove near the limiting block, and the stroke groove is adapted to the limiting block.

[0013] Preferably, the outer surface of each of the outer support plates is provided with damping pads, and the damping pads are fixedly connected to the outer support plates respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Firstly, through the coordinated action of the top plate, fixing rod, sleeve, bottom plate, outer support plate, and linkage mechanism, the user can control the outer support plate to move simultaneously towards the inner wall of the tunnel, thereby fixing the device in the center of the tunnel. This improves the accuracy of drilling the center hole inside the tunnel. Existing tunnel drilling positioning devices do not have the function of center positioning. When drilling inside the tunnel, these devices cannot guarantee that the hole is in the center of the tunnel, leading to significant errors in tunnel construction.

[0016] Secondly, through the combined action of the top plate, fixing rod, sleeve, bottom plate, outer support plate and power mechanism, the user can control the high-speed rotating drill bit to open a center hole in the center of the tunnel. This can provide a larger horizontal thrust to the drill bit, avoiding the situation where the drill bit breaks inside the center hole due to uneven force application, thus improving the efficiency of hole opening. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a tunnel drilling positioning device according to the present invention;

[0018] Figure 2 This is a side sectional view of a tunnel drilling positioning device according to the present invention.

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B;

[0021] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point C;

[0022] Figure 6 This is a schematic diagram of the connection structure between the limiting block and the stroke groove of this utility model.

[0023] In the picture:

[0024] 1. Top plate; 2. Fixed rod; 3. Sleeve; 4. Bottom plate; 5. Outer support plate; 6. Linkage mechanism; 7. Power mechanism; 8. First fixed block; 9. First rotating shaft; 10. First linkage rod; 11. Second fixed block; 12. Second rotating shaft; 13. Damping pad; 14. Second linkage rod; 15. Third rotating shaft; 16. Fourth rotating shaft; 17. Third fixed block; 18. Fifth rotating shaft; 19. Fourth fixed block; 20. Telescopic mechanism; 21. First hydraulic cylinder; 22. Slide rod; 23. Partition plate; 24. Second hydraulic cylinder; 25. Drilling machine; 26. Drill bit; 27. Slider; 28. Slide groove; 29. ​​Limiting block; 30. Stroke groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 6 The present invention will describe the above technical solution in detail through the following embodiments:

[0027] A tunnel drilling positioning device includes: a top plate 1; a fixing rod 2 is fixedly connected to the bottom of the top plate 1, a sleeve 3 is sleeved on the bottom outer surface of the fixing rod 2, a bottom plate 4 is fixedly connected to the bottom of the sleeve 3, and five outer support plates 5 are evenly arranged on the outer side of the sleeve 3; a linkage mechanism 6 for center positioning of the device is provided on the side of the outer support plate 5 near the sleeve 3; a power mechanism 7 for drilling the tunnel is provided inside the sleeve 3. The user can place the device inside the tunnel and then control the sleeve 3 to move towards the top plate 1 on the surface of the fixing rod 2. While the sleeve 3 slides on the surface of the fixing rod 2, the linkage mechanism 6 controls the outer support plates 5 to move outward at the same time, so that the five outer support plates 5 contact the inner wall of the tunnel at the same time, thereby fixing the device at the center inside the tunnel.

[0028] like Figures 2 to 5As shown, the linkage mechanism 6 includes: a first fixing block 8 slidably connected to the side of the outer support plate 5 near the sleeve 3; a first rotating shaft 9 rotatably connected inside the first fixing block 8; a first linkage rod 10 fixedly connected to the outer surfaces of both ends of the first rotating shaft 9; a second fixing block 11 provided at the end of the first linkage rod 10 away from the first fixing block 8; a second rotating shaft 12 rotatably connected inside the second fixing block 11; both ends of the second rotating shaft 12 are connected to the first linkage rod 10; a second linkage rod 14 is provided between the two first linkage rods 10; a third rotating shaft 15 is fixedly connected to the middle of the second linkage rod 14; the third rotating shaft 15... Both ends of shaft 15 are rotatably connected to the first linkage rod 10. One end of the second linkage rod 14 is fixedly connected to the fourth rotating shaft 16. The outer surfaces of both ends of the fourth rotating shaft 16 are fixedly connected to the third fixing blocks 17, which are fixedly connected to the fixing rod 2. The end of the second linkage rod 14 away from the fourth rotating shaft 16 is fixedly connected to the fifth rotating shaft 18. The outer surfaces of both ends of the fifth rotating shaft 18 are fixedly connected to the fourth fixing blocks 19, which are slidably connected to the outer support plate 5. The top of the top plate 1 is provided with a telescopic mechanism 20 for controlling the sleeve 3 to slide on the outer surface of the fixing rod 2. As surface 2 moves towards top plate 1, it drives the second fixing block 11, reducing the distance between the second fixing block 11 and the third fixing block 17. Simultaneously, the second fixing block 11 drives one end of the first linkage rod 10 via the second rotating shaft 12, and the third fixing block 17 drives one end of the second linkage rod 14 via the fourth rotating shaft 16. This causes the first linkage rod 10 and the second linkage rod 14 to rotate around the third rotating shaft 15. While the first linkage rod 10 rotates, it drives the first fixing block 8 via the first rotating shaft 9, and while the second linkage rod 14 rotates, it drives the fourth fixing block 19 via the fifth rotating shaft 18. The fourth fixing block 19 approaches the first fixing block 8, thereby pushing the outer support plate 5 towards the inner wall of the tunnel to achieve the purpose of positioning the sleeve 3, so that the sleeve 3 is located at the center of the tunnel. The user can control the outer support plate 5 to move towards the inner wall of the tunnel at the same time, thereby fixing the device in the center of the tunnel. This improves the accuracy of the device in drilling the center hole inside the tunnel. The existing tunnel drilling positioning device does not have the function of center positioning of the device. When drilling inside the tunnel, the device cannot guarantee that the hole position is in the center of the tunnel, which leads to a large error in tunnel construction.

[0029] like Figure 2As shown, the telescopic mechanism 20 includes: a first hydraulic cylinder 21 fixedly connected to the top of the top plate 1, the telescopic end of the first hydraulic cylinder 21 passing through the top plate 1 and extending to the slide rod 22, the slide rod 22 being fixedly connected to the telescopic end of the first hydraulic cylinder 21; the bottom end of the slide rod 22 passing through the fixed rod 2 and extending to the partition 23, the partition 23 being fixedly connected to the slide rod 22, the partition 23 being fixedly connected to the sleeve 3, and the first hydraulic cylinder 21 being activated, the telescopic end of the first hydraulic cylinder 21 retracts while driving the slide rod 22, the slide rod 22 driving the partition 23, the partition 23 pulling the sleeve 3, so that the sleeve 3 moves towards the top plate 1 on the surface of the fixed rod 2.

[0030] like Figure 2 As shown, the power mechanism 7 includes: a second hydraulic cylinder 24 is installed inside the sleeve 3, and the second hydraulic cylinder 24 is fixedly connected to the base plate 4; the telescopic end of the second hydraulic cylinder 24 passes through the base plate 4 and extends to the drilling machine 25, the drilling machine 25 is fixedly connected to the telescopic end of the second hydraulic cylinder 24, a replaceable drill bit 26 is installed at the bottom of the drilling machine 25, and a locking mechanism is installed inside the drilling machine 25. The locking mechanism is designed to facilitate the replacement of the drill bit by the operator. This mechanism adopts an existing structure and will not be described in detail. When the drilling machine 25 is started, the drilling machine 26... 5 drives the drill bit 26 to rotate at high speed, and at the same time activates the second hydraulic cylinder 24. The extension end of the second hydraulic cylinder 24 extends outward and pushes the drilling machine 25. The drilling machine 25 drives the drill bit 26, which in turn pushes the high-speed rotating drill bit 26 to open a center hole in the center of the tunnel. The user can control the high-speed rotating drill bit 26 to open a center hole in the center of the tunnel, which can provide a larger horizontal thrust to the drill bit 26 and avoid the situation where the drill bit 26 breaks inside the center hole due to uneven force application, thus improving the efficiency of hole opening.

[0031] like Figure 4 and Figure 5 As shown, the first fixing block 8 and the fourth fixing block 19 are both fixedly connected to the side of the outer support plate 5 with sliders 27. The outer support plate 5 is provided with matching grooves 28 near the sliders 27. The sliders 27 and the grooves 28 are slidably connected, so that the first fixing block 8 and the fourth fixing block 19 can slide on one side of the outer support plate 5.

[0032] like Figure 6 As shown, five limiting blocks 29 are evenly arranged on the bottom outer surface of the fixed rod 2. The limiting blocks 29 are all fixedly connected to the fixed rod 2. The sleeve 3 is provided with a stroke groove 30 near the limiting block 29. The stroke groove 30 is adapted to the limiting block 29 and can limit the sleeve 3.

[0033] like Figure 6As shown, damping pads 13 are provided on the outer surface of the outer support plate 5. The damping pads 13 are fixedly connected to the outer support plate 5, which improves the friction between the outer support plate 5 and the inner wall of the tunnel, thereby improving the stability of the device fixed inside the tunnel.

[0034] Working principle: The user can place the device inside the tunnel and then activate the first hydraulic cylinder 21. The retraction of the first hydraulic cylinder 21 simultaneously drives the sliding rod 22, which in turn drives the partition 23. The partition 23 pulls the sleeve 3, causing the sleeve 3 to move from the surface of the fixed rod 2 towards the top plate 1. Simultaneously, the sleeve 3 moves from the surface of the fixed rod 2 towards the top plate 1, driving the second fixed block 11, thus reducing the distance between the second fixed block 11 and the third fixed block 17. At the same time, the second fixed block 11 drives one end of the first linkage rod 10 via the second rotating shaft 12, and the third fixed block 17 drives one end of the second linkage rod 14 via the fourth rotating shaft 16. This causes the first linkage rod 10 and the second linkage rod 14 to rotate simultaneously around the third rotating shaft 15. While rotating, the first fixed block 8 is driven by the first rotating shaft 9, and the second linkage rod 14 is driven by the fifth rotating shaft 18, causing the fourth fixed block 19 to move closer to the first fixed block 8. This pushes the outer support plate 5 towards the inner wall of the tunnel, thereby positioning the sleeve 3 and placing it at the center of the tunnel. The user can control the outer support plate 5 to move towards the inner wall of the tunnel, thus fixing the device at the center of the tunnel. This improves the accuracy of drilling the center hole inside the tunnel. Existing tunnel drilling positioning devices do not have the function of center positioning. When drilling inside the tunnel, these devices cannot guarantee that the drilled hole is in the center of the tunnel, leading to significant errors in tunnel construction.

[0035] The drilling machine 25 is started, which drives the drill bit 26 to rotate at high speed. At the same time, the second hydraulic cylinder 24 is activated. The extension end of the second hydraulic cylinder 24 extends outward and pushes the drilling machine 25. The drilling machine 25 drives the drill bit 26, which in turn pushes the high-speed rotating drill bit 26 to open a center hole in the center of the tunnel. The user can control the high-speed rotating drill bit 26 to open a center hole in the center of the tunnel. This can provide a larger horizontal thrust to the drill bit 26 and avoid the situation where the drill bit 26 breaks inside the center hole due to uneven force application, thus improving the efficiency of drilling.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tunnel borehole positioning device, comprising: Top plate (1); The top plate (1) is characterized in that a fixing rod (2) is fixedly connected to the bottom, a sleeve (3) is sleeved on the bottom outer surface of the fixing rod (2), a bottom plate (4) is fixedly connected to the bottom of the sleeve (3), and five outer support plates (5) are evenly arranged on the outer side of the sleeve (3). Each of the outer support plates (5) is provided with a linkage mechanism (6) for center positioning of the device on the side near the sleeve (3); The sleeve (3) is equipped with a power mechanism (7) for drilling the tunnel.

2. The tunnel drilling positioning device as described in claim 1, characterized in that: The linkage mechanism (6) includes: The outer support plate (5) is slidably connected to a first fixing block (8) on the side near the sleeve (3). The first fixing block (8) is rotatably connected to a first rotating shaft (9). The outer surfaces of both ends of the first rotating shaft (9) are fixedly connected to a first linkage rod (10). The end of the first linkage rod (10) away from the first fixing block (8) is provided with a second fixing block (11). The interior of the second fixing block (11) is rotatably connected to a second rotating shaft (12). Both ends of the second rotating shaft (12) are connected to the first linkage rod (10). A second linkage rod (14) is provided between each of the two first linkage rods (10). A third rotating shaft (15) is fixedly connected to the middle of each second linkage rod (14). Both ends of the third rotating shaft (15) are rotatably connected to the first linkage rod (10). A fourth rotating shaft (16) is fixedly connected to one end of the second linkage rod (14). A third fixing block (17) is fixedly connected to the outer surfaces of both ends of the fourth rotating shaft (16). The third fixing block (17) is fixedly connected to the fixing rod (2). A fifth rotating shaft (18) is fixedly connected to the end of the second linkage rod (14) away from the fourth rotating shaft (16). A fourth fixing block (19) is fixedly connected to the outer surfaces of both ends of the fifth rotating shaft (18). The fourth fixing block (19) is slidably connected to the outer support plate (5). The top of the top plate (1) is provided with a telescopic mechanism (20) for the control sleeve (3) to slide on the outer surface of the fixed rod (2).

3. The tunnel drilling positioning device as described in claim 2, characterized in that: The telescopic mechanism (20) includes: A first hydraulic cylinder (21) is fixedly connected to the top of the top plate (1). The telescopic end of the first hydraulic cylinder (21) passes through the top plate (1) and extends to the slide rod (22). The slide rod (22) is fixedly connected to the telescopic end of the first hydraulic cylinder (21). The bottom end of the slide rod (22) passes through the fixed rod (2) and extends to the partition (23). The partition (23) is fixedly connected to the slide rod (22) and the partition (23) is fixedly connected to the sleeve (3).

4. The tunnel drilling positioning device as described in claim 1, characterized in that: The power mechanism (7) includes: The sleeve (3) is equipped with a second hydraulic cylinder (24), which is fixedly connected to the base plate (4); The telescopic end of the second hydraulic cylinder (24) passes through the base plate (4) and extends to the drilling machine (25). The drilling machine (25) is fixedly connected to the telescopic end of the second hydraulic cylinder (24). A replaceable drill bit (26) is provided at the bottom of the drilling machine (25).

5. A tunnel drilling positioning device as described in claim 2, characterized in that: Both the first fixing block (8) and the fourth fixing block (19) are fixedly connected to a slider (27) on the side near the outer support plate (5). The outer support plate (5) is provided with a matching groove (28) near the slider (27). The slider (27) is slidably connected to the groove (28).

6. The tunnel drilling positioning device as described in claim 1, characterized in that: The bottom outer surface of the fixed rod (2) is uniformly provided with five limiting blocks (29), all of which are fixedly connected to the fixed rod (2). The sleeve (3) is provided with a stroke groove (30) near the limiting block (29), and the stroke groove (30) is adapted to the limiting block (29).

7. The tunnel drilling positioning device as described in claim 1, characterized in that: Damping pads (13) are provided on the outer surface of the outer support plate (5), and the damping pads (13) are fixedly connected to the outer support plate (5).

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