Positioning anchor rod mounting device for tunnel construction

Abstract

The utility model discloses a positioning anchor rod mounting device for tunnel construction, which comprises a base, a support table rotationally connected with the base, a crawler belt arranged below the support table, a lifting mechanism arranged above the support table and used for adjusting the height of a sliding block, a rack fixedly connected with the side surface of the sliding block, and a transmission gear meshed with the rack. The transmission gear is fixedly connected with a worm wheel, the worm wheel is in meshed connection with a worm, a clamping mechanism is arranged on the side, close to the sliding block, of the side face of the worm wheel and used for fixing the anchor rod, a sliding rail is arranged above the base, the sliding rail is in sliding connection with a sliding table top, and a sleeve above the sliding block in the positioning anchor rod installation device can guide the direction of the anchor rod. And inclined pricking on the rock wall is avoided. The supporting platform is particularly important for long anchor rods, it is ensured that the anchor rods are accurately installed at the preset positions, the construction precision is improved, the pressure on the tunnel ground is reduced through the tracks arranged at the two ends of the supporting platform, and the overall stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering support, in particular to a positioning bolt installation device for tunnel construction. Background Technique

[0002] Bolts are common support methods in engineering construction and tunnel excavation. After drilling holes in the rock wall and inserting bolts, they are anchored through self-anchoring or cement grouting to form a better stress structure between the rock walls, making it not easy to collapse. Common bolt forms include mechanical friction type, bonding type, and self-anchoring type, etc. In tunnel construction, the bench method is usually used for excavation, and it is necessary to frequently anchor the surrounding rock at each part of the bench in segments. However, at the initial stage of excavation, large bolt installation equipment is inconvenient to use on the bench, and the bolt is relatively long. When inserting, the front end lacks guidance and is prone to being skewed, reducing the construction efficiency.

[0003] After retrieval, the patent with the Chinese patent number CN221503333U relates to a positioning bolt installation device for tunnel construction, belonging to the field of engineering support. It includes a vehicle frame, a slide rail is arranged on the top of the vehicle frame, a slide table that slides along the length direction of the slide rail is arranged on the slide rail, and a bolt pushing mechanism is arranged on the slide table; a positioning cylinder that can be adjusted in height is arranged on the top of the vehicle frame. The positioning cylinder is located at one end of the length direction of the slide rail, and the axis of the positioning cylinder is parallel to the length direction of the slide rail. The bolt pushing mechanism pushes the bolt to pass through the positioning cylinder.

[0004] During the use of the above device, when adjusting the height, since the lifting method is to drill holes in the positioner and then fix it with a threaded rod, this adjustment method may cause a deviation between the adjusted height and the preset height when inserting the bolt. Therefore, a positioning bolt installation device for tunnel construction is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned disadvantages existing in the technology, that is, when adjusting the height, since the lifting method is to drill holes in the positioner and then fix it with a threaded rod, this adjustment method may cause a deviation between the adjusted height and the preset height when inserting the bolt, and a positioning bolt installation device for tunnel construction is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A positioning bolt installation device for tunnel construction, including a base, the base is rotatably connected with a support platform, a crawler is arranged below the support platform, a lifting mechanism is arranged above the support platform, the lifting mechanism is used for adjusting the height of the sliding block, a rack is fixedly connected to the side of the sliding block, the rack is meshed with a transmission gear, the transmission gear is fixedly connected with a worm gear, the worm gear is meshed with a worm, a clamping mechanism is arranged on one side of the sliding block close to the sliding block, the clamping mechanism is used for fixing the bolt, a slide rail is arranged above the base, a sliding tabletop is slidably connected to the slide rail, the sliding tabletop is rotatably connected with a rotatable tabletop, a towing box is fixedly connected above the rotatable tabletop, a rotator is arranged inside the towing box, and a pushing roller is rotatably connected to the rotator.

[0008] The above technical solution further includes:

[0009] The lifting mechanism includes a cylinder arranged on the support platform, the cylinder is slidably connected with a sliding column, the sliding column is fixedly connected with a curved rod, the curved rod slides inside a hole, the clamping mechanism includes a fixing piece arranged on one side of the sliding block, a rotating wheel is arranged inside the fixing piece, the rotating wheel is meshed with a second connecting wheel, the second connecting wheel is meshed with a first connecting wheel, the first connecting wheel and the second connecting wheel are respectively rotatably connected with a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are respectively rotatably connected with a first stabilizing block and a second stabilizing block.

[0010] The worm is fixed on a bracket, and the worm gear and the transmission gear are fixed on another group of brackets.

[0011] A curved hole is opened above the towing box, and the pushing roller can adjust the width above the towing box.

[0012] Clamping clips are arranged above both the first stabilizing block and the second stabilizing block, the second stabilizing block is rotatably connected with the fixing piece, the first stabilizing block is rotatably connected with the fixing piece, and the fixing pieces above the first stabilizing block and the second stabilizing block can adjust different sizes.

[0013] An output motor is arranged above the worm, and a vertical block is fixedly connected above the base.

[0014] A first gear is fixedly connected below the rotatable tabletop, the first gear is rotatably connected with the sliding tabletop, the first gear is meshed with a second gear, a sensing motor is arranged at the bottom of the second gear, the sensing motor can be used to control the rotation of the second gear, and an anti-slip guard edge is arranged on one side of the sliding tabletop.

[0015] A rotating block is arranged above the rotatable tabletop, and a bolt drill sleeve is arranged at one end of the rotating block.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, the cooperation of a worm and a worm gear, as well as the meshing transmission mode of a transmission gear and a rack, are adopted to adjust the clamping height of the bolt. Compared with the traditional method of punching holes in the positioner and fixing with a threaded rod, the accuracy of height adjustment is greatly improved. This precise adjustment can ensure that during tunnel construction, the height of the bolt insertion is highly consistent with the preset height, effectively avoiding construction quality problems caused by height deviation and ensuring the stability and reliability of the tunnel support structure.

[0018] 2. In the utility model, the combined structure of the worm, the worm gear and the rack can realize the up and down movement of the sliding block, so as to adjust the clamping height of the bolt. This enables the device to adapt to construction positions at different heights. Whether it is at the top or the side wall of the tunnel, the bolt can be accurately installed. The setting of the crawler makes the movement of the device in the tunnel more flexible, and it can adapt to tunnel floors with different terrains, including uneven floors and areas with obstacles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a positioning bolt installation device for tunnel construction proposed by the utility model;

[0020] Figure 2 is a schematic side view structure diagram of a positioning bolt installation device for tunnel construction in the utility model;

[0021] Figure 3 is Figure 1 an enlarged schematic diagram at A in;

[0022] Figure 4 is a partial structural diagram of a positioning bolt installation device for tunnel construction in the utility model;

[0023] Figure 5 is Figure 4 an enlarged schematic diagram at B in.

[0024] In the figure: 1. Base; 2. Slide rail; 3. Sliding table; 4. Rotatable table; 5. First gear; 6. Second gear; 7. Anti-slip edge; 8. Cylinder; 9. Sliding column; 10. Hole; 11. Curved rod; 12. Support platform; 13. Crawler; 14. Standing block; 15. Sliding block; 16. Rack; 17. Transmission gear; 18. Worm; 19. Worm gear; 20. Towing box; 21. Rotator; 22. Pushing roller; 23. Clamping clip; 24. Rotating wheel; 25. Fixed piece; 26. First connecting wheel; 27. First connecting rod; 28. First stabilizing block; 29. Second stabilizing block; 30. Second connecting rod; 31. Second connecting wheel; 32. Rotating block; 33. Bolt drill sleeve. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than 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 work shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5 As shown, the present utility model is a positioning bolt installation device for tunnel construction, including a base 1. The base 1 is rotatably connected to a support platform 12. A crawler 13 is arranged below the support platform 12. An elevating mechanism is arranged above the support platform 12. The elevating mechanism is used for adjusting the height of the sliding block 15. A rack 16 is fixedly connected to the side of the sliding block 15. The rack 16 is meshed with a transmission gear 17. The transmission gear 17 is fixedly connected to a worm gear 19. The worm gear 19 is meshed with a worm 18. A clamping mechanism is arranged on one side of the worm gear 19 close to the sliding block 15. The clamping mechanism is used for fixing the bolt. A slide rail 2 is arranged above the base 1. A sliding table top 3 is slidably connected to the slide rail 2. The sliding table top 3 is rotatably connected to a rotatable table top 4. A towing box 20 is fixedly connected above the rotatable table top 4. A rotator 21 is arranged inside the towing box 20. The rotator 21 is rotatably connected to a pushing roller 22.

[0027] In one embodiment, for the elevating mechanism, the elevating mechanism includes a cylinder 8 arranged on the support platform 12. The cylinder 8 is slidably connected to a sliding column 9. The sliding column 9 is fixedly connected to a curved rod 11. The curved rod 11 slides inside a hole 10. The clamping mechanism includes a fixing piece 25 arranged on one side of the sliding block 15. A rotating wheel 24 is arranged inside the fixing piece 25. The rotating wheel 24 is meshed with a second connecting wheel 31. The second connecting wheel 31 is meshed with a first connecting wheel 26. The first connecting wheel 26 and the second connecting wheel 31 are respectively rotatably connected to a first connecting rod 27 and a second connecting rod 30. The first connecting rod 27 and the second connecting rod 30 are respectively rotatably connected to a first stabilizing block 28 and a second stabilizing block 29.

[0028] In this embodiment, the elevating mechanism can correct the direction of the bolt, avoid skew on the rock wall, and the elevating mechanism can be adjusted up and down to change the direction of the bolt.

[0029] In one embodiment, for the worm 18, the worm 18 is fixed on a bracket, and the worm gear 19 and the transmission gear 17 are fixed on another group of brackets.

[0030] In one embodiment, for the towing box 20, a curved hole is opened above the towing box 20, and the pushing roller 22 can adjust the width above the towing box 20.

[0031] In this embodiment, when it is necessary to push the self-drilling hollow grouting bolt, one end of the bolt is inserted into the bolt drill sleeve 33, the rotator 21 drives the bolt drill sleeve 33 to rotate, the bolt drill sleeve 33 drives the bolt to rotate, the sliding table 3 drives the rotator 21 to advance, and the self-drilling hollow grouting bolt rotates and penetrates into the rock wall while advancing, and then grouting support is carried out.

[0032] In one embodiment, for the first stabilizing block 28, clamping clips 23 are arranged above both the first stabilizing block 28 and the second stabilizing block 29. The second stabilizing block 29 is rotatably connected to the fixing piece 25, the first stabilizing block 28 is rotatably connected to the fixing piece 25, and the fixing piece 25 above the first stabilizing block 28 and the second stabilizing block 29 can adjust different sizes.

[0033] In this embodiment, by setting the clamping mechanism, the fixing of the bolt can be realized, thereby preventing the bolt from being drilled crooked, and adapting to bolts of different models through the clamping clip 23, and the clamping clip 23 can be replaced.

[0034] In one embodiment, for the worm 18, an output motor is arranged above the worm 18. A vertical block 14 is fixedly connected to the base 1. A rotating block 32 is arranged above the rotatable table 4. One end of the rotating block 32 is provided with a bolt drill sleeve 33.

[0035] In this embodiment, by setting the worm 18, the height is controlled by the sensing motor to prevent reverse rotation, so as to avoid unstable fixing of the bolt.

[0036] In one embodiment, for the rotatable table 4, a first gear 5 is fixedly connected to the lower part of the rotatable table 4. The first gear 5 is rotatably connected to the sliding table 3. The first gear 5 is meshed with a second gear 6. A sensing motor is arranged at the bottom of the second gear 6. The sensing motor can be used to control the rotation of the second gear 6. An anti-slip edge 7 is arranged on one side of the sliding table 3.

[0037] In this embodiment, by arranging the anti-slip edge 7 on the side of the sliding table 3, the sliding of the sliding table is prevented.

[0038] The working principle of the positioning bolt installation device for tunnel construction in the present utility model is as follows. When it is necessary to push the self-anchoring bolt, place the bolt between the two pushing rollers 22. The rotator 21 drives the pushing rollers 22 to rotate, and the two pushing rollers 22 convey the bolt forward. The curved holes above the rotator 21 can horizontally adjust the spacing between the pushing rollers 22, which is applicable to bolts of different diameters. When it is necessary to push the self-drilling hollow grouting bolt, insert one end of the bolt into the bolt drill sleeve 33. The rotator 21 drives the bolt drill sleeve 33 to rotate, and the bolt drill sleeve 33 drives the bolt to rotate self. The sliding table 3 drives the rotator 21 to move forward, and the self-drilling hollow grouting bolt rotates and penetrates into the rock wall while moving forward. Then grouting support is carried out. When it is necessary to carry out fixed-point support on one end of the bolt, it is clamped by the clamping clip 23. The size of the clamping clip 23 can be adjusted according to the size of the bolt, which is controlled by the motor on one side of the fixing piece 25. Then further, the rotating wheel 24 rotates, and the rotating wheel 24 drives the first connecting wheel 26 to mesh with the second connecting wheel 31. Then the first connecting rod 27 and the second stabilizing block 29 rotate on the surfaces of the second stabilizing block 29 and the first stabilizing block 28, and then drive the first stabilizing block 28 and the second stabilizing block 29 to contract and expand, and then tightly clamp the clamping clip 23 for clamping the bolt. When it is necessary to adjust the clamping height of the bolt, through the motor above the worm 18, then control the worm 18 to rotate. The worm 18 drives the worm wheel 19 to rotate, and then further drives the transmission gear 17 and the rack 16 to mesh. The sliding block 15 moves up and down driven by the rack 16 to reach the required height position. Crawlers 13 are arranged at both ends of the support table 12, which can well reduce the pressure on the tunnel ground and also increase the overall stability.

[0039] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning anchor installation device for tunnel construction, characterized in that: The invention comprises a base (1), wherein the base (1) is rotatably connected to a support platform (12), a crawler (13) is arranged below the support platform (12), a lifting mechanism is arranged above the support platform (12), and the lifting mechanism is used to adjust the height of a sliding block (15), a rack (16) is fixedly connected to the side of the sliding block (15), the rack (16) is meshingly connected to a transmission gear (17), the transmission gear (17) is fixedly connected to a worm gear (19), the worm gear (19) is meshingly connected to a worm (18), a clamping mechanism is arranged on the side of the worm gear (19) close to the sliding block (15), and the clamping mechanism is used to fix the anchor rod, and a lifting mechanism is arranged above the base (1). A slide rail (2) is provided, the slide rail (2) is slidably connected to a slide table (3), the slide table (3) is rotatably connected to a rotatable table (4), a towing box (20) is fixedly connected above the rotatable table (4), a rotator (21) is arranged inside the towing box (20), the rotator (21) is rotatably connected to a push roller (22), when the anchor rod is installed, the motor above the worm (18) rotates, the worm (18) rotates to drive the worm wheel (19) to mesh, the worm wheel (19) drives the transmission gear (17) to rotate, the rack (16) fixed on the side of the sliding block (15) will mesh with the transmission gear (17), and the sliding block (15) moves up and down to position the anchor rod.

2. A positioning anchor rod installation device for tunnel construction according to claim 1, characterized in that: The lifting mechanism comprises a cylinder (8) arranged on a support platform (12), the cylinder (8) being slidably connected to a sliding column (9), the sliding column (9) being fixedly connected to a curved rod (11), the curved rod (11) sliding inside the hole (10), the clamping mechanism comprising a fixing plate (25) arranged on one side of the sliding block (15), a rotating wheel (24) being arranged inside the fixing plate (25), the rotating wheel (24) being meshingly connected to a second connecting wheel (31), the second connecting wheel (31) being meshingly connected to a first connecting wheel (26), the first connecting wheel (26) and the second connecting wheel (31) being rotatably connected to a first connecting rod (27) and a second connecting rod (30), respectively, the first connecting rod (27) and the second connecting rod (30) being rotatably connected to a first stabilizing block (28) and a second stabilizing block (29), respectively.

3. A positioning anchor rod installation device for tunnel construction according to claim 1, characterized in that: The worm (18) is fixed on a bracket, and the worm wheel (19) and the transmission gear (17) are fixed on another set of brackets.

4. A positioning anchor rod installation device for tunnel construction according to claim 1, characterized in that: A curved hole is provided above the drag box (20), and the pushing roller (22) can adjust the width above the drag box (20).

5. A positioning anchor rod installation device for tunnel construction according to claim 2, characterized in that: A clamping clip (23) is provided above each of the first stabilizing block (28) and the second stabilizing block (29); the second stabilizing block (29) is rotatably connected to the fixing plate (25); the first stabilizing block (28) is rotatably connected to the fixing plate (25); and the fixing plates (25) above the first stabilizing block (28) and the second stabilizing block (29) can be adjusted to different sizes.

6. A positioning anchor rod installation device for tunnel construction according to claim 1, characterized in that: An output motor is arranged above the worm (18), and a vertical block (14) is fixedly connected above the base (1).

7. A positioning anchor rod installation device for tunnel construction according to claim 1, characterized in that: A first gear (5) is fixedly connected below the rotatable table (4); the first gear (5) is rotatably connected to the sliding table (3); the first gear (5) is meshingly connected to a second gear (6); a sensor motor is provided at the bottom of the second gear (6); the sensor motor can be used to control the rotation of the second gear (6); and an anti-slip edge guard (7) is provided on one side of the sliding table (3).

8. A positioning anchor rod installation device for tunnel construction according to claim 1, characterized in that: A rotating block (32) is arranged above the rotatable tabletop (4), and an anchor drill sleeve (33) is arranged at one end of the rotating block (32).

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