Coal mine tunnel floor anchor rod drilling stabilizing device

Abstract

The utility model discloses a coal mine tunnel floor anchor rod drilling stabilizing device which comprises a transverse plate, a transverse groove is formed in the upper end of the transverse plate, the inner walls of the front side and the rear side of the transverse groove are jointly and rotationally connected with a lead screw, the lead screw is in threaded connection with two sliding blocks, the upper ends of the two sliding blocks are both fixedly connected with L-shaped blocks, and the L-shaped blocks are fixedly connected with the lower ends of the two sliding blocks. Positioning plates are fixedly connected to the left sides of the two L-shaped blocks, side face clamping assemblies are arranged on the adjacent sides of the two positioning plates, and the front side of the lead screw extends to the outside and is fixedly connected with a first rotary knob. According to the device, through the arrangement of the two positioning plates and the side face clamping assemblies, drilling machines of different sizes are stabilized, the situation that the drilling machine deviates during drilling is avoided, meanwhile, through the arrangement of the two arc-shaped blocks, the stability of the drilling machine during moving is further improved, and the arc-shaped blocks are rapidly replaced according to the size of a drilling rod of the drilling machine.

Description

Technical Field

[0001] This utility model relates to the technical field of drilling stabilization devices, and in particular to a drilling stabilization device for anchor bolt drilling in the floor of a coal mine roadway. Background Technology

[0002] In coal mining operations, the stability of roadways plays a crucial role in the safe and efficient operation of the entire coal mine production system. To enhance the support effect of roadways, rock bolt support technology is widely used. Its principle is to drill holes in the surrounding rock (including cross slabs) of the roadway and install rock bolts, so that the rock bolts and the surrounding rock mass form an integral load-bearing structure, thereby effectively controlling the deformation of the surrounding rock and maintaining the stability of the roadway.

[0003] Some traditional drilling methods rely on manual support of the drilling rig. This method depends entirely on the operator's experience and physical strength, making it difficult to maintain the stability of the drilling rig for a long time. Furthermore, it is impossible to effectively control the shaking of the drilling rig when faced with large reaction forces, resulting in large fluctuations in drilling accuracy and low work efficiency.

[0004] Some existing drilling stabilization devices have relatively simple structural designs, often only able to fix the drilling rig from a single direction or using a relatively fixed method, making them poorly adaptable to complex and variable roadway floor conditions. For example, some devices can only clamp drilling rigs within a specific size range, failing to achieve stable fixation when the rig specifications change slightly; furthermore, some devices cannot flexibly adjust their fixing posture when dealing with uneven or tilted surfaces on the horizontal plate, thus affecting the drilling stabilization effect and failing to reliably ensure the drilling rig remains stable during drilling, ultimately hindering the improvement of the quality and efficiency of anchor bolt support operations in coal mine roadway floor construction.

[0005] Therefore, it is necessary to design a drilling and stabilizing device for anchor bolt drilling in coal mine roadways to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a stable drilling device for anchor bolt drilling in coal mine roadways. This device stabilizes drilling machines of different sizes by using two positioning plates and side clamping components, preventing the drilling machine from shifting during drilling. At the same time, the two arc-shaped blocks further enhance the stability of the drilling machine during movement, and the arc-shaped blocks can be quickly replaced according to the size of the drill rod.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A drilling and stabilizing device for anchor bolt drilling in the floor of a coal mine roadway includes a horizontal plate. The upper end of the horizontal plate is provided with a horizontal groove. The inner walls of the front and rear sides of the horizontal groove are rotatably connected to a lead screw. Two sliders are threaded onto the lead screw. An L-shaped block is fixedly connected to the upper end of each of the two sliders. A positioning plate is fixedly connected to the left side of each of the two L-shaped blocks. Side clamping assemblies are provided on the adjacent sides of the two positioning plates. The front side of the lead screw extends to the outside and is fixedly connected to a first knob.

[0009] Preferably, the side clamping assembly includes two fixing blocks fixed to the positioning plate, each fixing block having a threaded rod rotatably connected to an adjacent side, each threaded rod having a threaded sleeve threadedly connected to a threaded sleeve, each threaded sleeve having a clamping plate fixedly connected to an adjacent side, each clamping plate being slidably connected to the positioning plate, and each threaded rod having a second knob fixedly connected to an opposite side.

[0010] Preferably, the horizontal plate is provided with multiple through holes, and each through hole is provided with an anchor bolt.

[0011] Preferably, two mounting blocks are fixedly connected to the upper end of the horizontal plate, pneumatic rods are fixedly connected to the adjacent sides of the two mounting blocks, rectangular blocks are fixedly connected to the telescopic ends of the two pneumatic rods, and arc-shaped blocks are provided on the adjacent sides of the two rectangular blocks.

[0012] Preferably, each of the two arc-shaped blocks has an insertion block fixedly connected to its opposite side, each of the two rectangular blocks has a rectangular groove on its adjacent side, each of the two insertion blocks has a positioning hole, each of the two rectangular blocks has a positioning hole that penetrates the corresponding rectangular groove, and each of the two positioning holes has a positioning pin.

[0013] Preferably, the thread layer on the lead screw is a bidirectional thread layer.

[0014] Compared with existing technologies, the advantages of this device are:

[0015] 1. Compared with existing technologies, this device allows for adjustment of the distance between two positioning plates by rotating the first knob to move the slider, thus adapting to drilling rigs of different widths. Furthermore, the threaded rod and threaded sleeve in the side clamping assembly, along with the second knob, enable the clamping plates to move flexibly, further clamping the drilling rig from both sides. This multi-dimensional adjustable structural design allows the device to securely fix drilling rigs of various sizes, greatly expanding its applicability and effectively ensuring the accuracy of the drilling rig's position during drilling operations, avoiding deviations caused by differences in drilling rig dimensions.

[0016] 2. Compared with existing technologies, the two arc-shaped blocks, in conjunction with the mounting block, pneumatic rod, rectangular block, and positioning pins, provide a ring-shaped fixation for the drill rod section of the drilling rig. During drilling, regardless of the direction of force applied to the drilling rig, this multi-directional fixing method effectively disperses and offsets external forces, keeping the drilling rig stable and minimizing movement and swaying. This ensures high precision and quality in drilling, improving the stability and reliability of the entire anchor bolt drilling operation.

[0017] 3. Compared with existing technologies, the structure of the insertion block, rectangular groove and positioning pin allows operators to easily disassemble and install arc blocks of different specifications, making them perfectly compatible with the corresponding drill rods and achieving tight circumferential fixation. This further enhances the adaptability of the device to different drilling rig configurations, optimizes the overall drilling stability, and provides a strong guarantee for efficient and precise drilling operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a drilling and stabilizing device for anchor bolt drilling in the floor of a coal mine roadway, as proposed in this utility model.

[0019] Figure 2 for Figure 1 A structural diagram from another perspective.

[0020] In the diagram: 1. Horizontal plate, 2. Anchor bolt, 3. First knob, 4. Lead screw, 5. Slider, 6. L-shaped block, 7. Positioning plate, 8. Second knob, 9. Clamping plate, 10. Fixing block, 11. Mounting block, 12. Pneumatic rod, 13. Rectangular block, 14. Arc block, 15. Positioning pin, 16. Insertion block, 17. Threaded sleeve, 18. Threaded rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-2 A drilling and stabilizing device for anchor bolt drilling in the floor of a coal mine roadway includes a horizontal plate 1 with multiple through holes. Each through hole is fitted with an anchor bolt 2 to facilitate installation of the device in the roadway. The horizontal plate 1 has a circular opening. After the horizontal plate 1 is fixed, the drilling area is located in the middle of the circular opening. The upper end of the horizontal plate 1 has a horizontal groove. The inner walls of the front and rear sides of the horizontal groove are rotatably connected to a lead screw 4. The thread layer on the lead screw 4 is a bidirectional thread layer. Two sliders 5 are threadedly connected to the lead screw 4. The upper ends of the two sliders 5 are fixedly connected to L-shaped blocks 6. The left sides of the two L-shaped blocks 6 are fixedly connected to positioning plates 7. The adjacent sides of the two positioning plates 7 are provided with side clamping components. The front side of the lead screw 4 extends to the outside and is fixedly connected to a first knob 3.

[0023] The side clamping assembly includes two fixing blocks 10 fixed on the positioning plate 7. Each of the two fixing blocks 10 is rotatably connected to a threaded rod 18 on an adjacent side. Each of the two threaded rods 18 is threadedly connected to a threaded sleeve 17. Each of the two threaded sleeves 17 is fixedly connected to a clamping plate 9 on an adjacent side. The two clamping plates 9 are slidably connected to the positioning plate 7. Each of the two threaded rods 18 is fixedly connected to a second knob 8 on a opposite side.

[0024] The upper end of the horizontal plate 1 is fixedly connected to two mounting blocks 11. Pneumatic rods 12 are fixedly connected to adjacent sides of the two mounting blocks 11. Rectangular blocks 13 are fixedly connected to the telescopic ends of the two pneumatic rods 12. Arc-shaped blocks 14 are provided on adjacent sides of the two rectangular blocks 13. Insertion blocks 16 are fixedly connected to opposite sides of the two arc-shaped blocks 14. Rectangular grooves are provided on adjacent sides of the two rectangular blocks 13. Positioning holes are provided on both insertion blocks 16 and both rectangular blocks 13. Positioning holes penetrate the corresponding rectangular grooves. Positioning pins 15 are provided in both positioning holes, so that the size of the arc-shaped blocks 14 can be quickly changed according to the size of the drill rod.

[0025] The functional principle of this utility model can be explained through the following operation: First, the anchor bolt drilling and stabilizing device for the coal mine roadway floor is transported to the designated position on the coal mine roadway floor where anchor bolt drilling is required. The horizontal plate 1 is placed flat on the roadway, ensuring that the multiple through holes on the horizontal plate 1 are well-fitted to the roadway surface. Next, anchor bolts 2 of appropriate specifications are selected, passed through each through hole, and gradually tightened with a wrench or other tools to firmly fix the horizontal plate 1 to the roadway.

[0026] By manually rotating the first knob 3 located on the front side of the lead screw 4 and fixedly connected to it, the lead screw 4 will begin to rotate under the rotational support of the inner walls of the front and rear sides of the horizontal groove at the upper end of the horizontal plate 1. At this time, the two sliders 5 threadedly connected to the lead screw 4 will move towards or away from each other along the lead screw 4. The sliders 5 drive the L-shaped block 6 fixedly connected at the upper end to move synchronously, thereby increasing or decreasing the distance between the two positioning plates 7 accordingly. Adjusting the distance between the two positioning plates 7 to be slightly larger than the width of the drilling rig provides suitable space for subsequent placement of the drilling rig and further clamping operations. This operation achieves the initial adaptation of drilling rigs of different widths in the lateral direction.

[0027] Place the drilling rig between the two positioning plates 7, and rotate the second knob 8 on the opposite side of the threaded rod 18 in each side clamping assembly to rotate the threaded rod 18. Since the threaded rod 18 and the threaded sleeve 17 fixedly connected to the clamping plate 9 are threadedly connected, and the clamping plate 9 and the positioning plate 7 are slidably connected, the threaded sleeve 17 will move linearly along the threaded rod 18 during rotation, causing the clamping plate 9 to slide smoothly along the positioning plate 7 towards one side of the drilling rig. By adjusting the two clamping plates 9 on the two positioning plates 7 respectively, they gradually approach each other from both sides and tightly clamp the sides of the drilling rig.

[0028] Based on the specific dimensions of the drill rod, select a matching arc-shaped block 14. Align the insertion block 16, which is fixedly connected to the opposite side of the arc-shaped block 14, with the rectangular grooves provided on the adjacent sides of the rectangular block 13, and insert the insertion block 16 into the rectangular grooves to initially connect the arc-shaped block 14 and the rectangular block 13. Then, select a suitable positioning pin 15 and pass it through the positioning hole on the insertion block 16 and the corresponding positioning hole on the rectangular block 13 to firmly fix the arc-shaped block 14 onto the rectangular block 13.

[0029] When the pneumatic rods 12, which are fixedly connected to the adjacent sides of the two mounting blocks 11, are activated, the telescopic ends of the pneumatic rods 12 begin to extend, pushing the rectangular block 13, which is fixedly connected to it, to move towards the drill rod of the drilling rig. This causes the two arc-shaped blocks 14 to gradually approach and surround the drill rod, forming a tight and fixed support for the drill rod.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drilling and stabilizing device for anchor bolt drilling in the floor of a coal mine roadway, comprising a horizontal plate (1), characterized in that: The upper end of the horizontal plate (1) is provided with a horizontal groove. The inner walls of the front and rear sides of the horizontal groove are rotatably connected to a lead screw (4). Two sliders (5) are threaded onto the lead screw (4). The upper ends of the two sliders (5) are fixedly connected to L-shaped blocks (6). The left sides of the two L-shaped blocks (6) are fixedly connected to positioning plates (7). The adjacent sides of the two positioning plates (7) are provided with side clamping components. The front side of the lead screw (4) extends to the outside and is fixedly connected to a first knob (3).

2. The drilling and stabilizing device for anchor bolt drilling in coal mine roadway floor as described in claim 1, characterized in that: The side clamping assembly includes two fixing blocks (10) fixed on the positioning plate (7). The adjacent sides of the two fixing blocks (10) are rotatably connected with threaded rods (18). The two threaded rods (18) are threadedly connected with threaded sleeves (17). The adjacent sides of the two threaded sleeves (17) are fixedly connected with clamping plates (9). The two clamping plates (9) are slidably connected to the positioning plate (7). The opposite sides of the two threaded rods (18) are fixedly connected with second knobs (8).

3. The drilling and stabilizing device for anchor bolt drilling in coal mine roadway floor as described in claim 1, characterized in that: The horizontal plate (1) is provided with multiple through holes, and each through hole is provided with an anchor bolt (2).

4. The drilling and stabilizing device for anchor bolt drilling in coal mine roadway floor as described in claim 1, characterized in that: Two mounting blocks (11) are fixedly connected to the upper end of the horizontal plate (1). Pneumatic rods (12) are fixedly connected to the adjacent sides of the two mounting blocks (11). Rectangular blocks (13) are fixedly connected to the telescopic ends of the two pneumatic rods (12). Arc-shaped blocks (14) are provided on the adjacent sides of the two rectangular blocks (13).

5. The drilling and stabilizing device for anchor bolt drilling in coal mine roadway floor as described in claim 4, characterized in that: An insertion block (16) is fixedly connected to the opposite sides of the two arc-shaped blocks (14). A rectangular groove is provided on the adjacent sides of the two rectangular blocks (13). A positioning hole is provided on the two insertion blocks (16). A positioning hole is provided on the two rectangular blocks (13). The positioning hole passes through the corresponding rectangular groove. A positioning pin (15) is provided in the two positioning holes.

6. The drilling and stabilizing device for anchor bolt drilling in coal mine roadway floor as described in claim 1, characterized in that: The thread layer on the lead screw (4) is a bidirectional thread layer.

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