Accurate righting device for drill rod in coal mine tunnel side anchor rod or side anchor cable drilling construction

Abstract

The utility model discloses a coal mine tunnel side anchor rod or side anchor cable drilling construction drill rod accurate righting device, relates to the technical field of coal mine tunnel anchor rod (cable) supporting, and solves the problems of poor adaptability and universality caused by limited adjusting capacity of a stabilizing device in the prior art. The device comprises a pair of bases, the two bases are adjustably connected through a distance adjusting structure, stand columns are fixedly arranged on the bases, a cross beam is arranged on the stand columns, a height adjusting structure is arranged between the stand columns and the cross beam in a matched mode, a supporting table is arranged on the cross beam, and a position adjusting structure is arranged between the supporting table and the cross beam in a matched mode. According to the device, vertical movement and drilling angle adjustment of the side anchor rod (cable) drilling can be achieved according to the size of the section of a roadway, the drilling construction quality can be guaranteed, conditions are created for reliable anchoring of the anchor rod (cable), the device is simple in structure and convenient to operate, and accurate drilling positioning in the roadway side anchor rod (cable) drilling construction process is easy to achieve.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine roadway anchor (cable) support, in particular to a device for accurately straightening a drill rod in coal mine roadway side anchor rod or side anchor cable drilling construction. Background Art

[0002] Coal, my country's primary energy source, has made significant contributions to its economic development. Most coal mines in my country are underground, requiring approximately 12,000 km of new tunnels annually. To maintain the stability of the surrounding rock, the vast majority of mines currently employ active support systems using anchor bolts (cables). These bolts (cables) are anchored into the surrounding rock, transferring their tensile force to the rock, thereby enhancing its overall strength. These bolts (cables) can also disperse concentrated stresses in the surrounding rock mass, reducing localized stress concentrations and minimizing damage.

[0003] As mining depth increases, the surrounding rock conditions underground become more complex, tunnel cross-sections grow larger, and the requirements for side support become increasingly stringent. Existing anchor (cable) drilling rigs present no problems drilling holes in the roof. However, when drilling side anchor (cable) holes using side anchor and top drilling rigs, it's difficult to maintain proper drilling position. Operators must manually support the drill during drilling. Prolonged support can cause the drill rod's drilling angle to change, or increase the hole diameter, impacting drilling quality. This can affect the accuracy of the installation hole and lead to issues with anchor (cable) installation orientation and anchoring quality. Furthermore, the need for two operators increases labor intensity, inefficiencies, and labor costs.

[0004] Chinese utility model patent publication number CN215565798U discloses a device for stabilizing a drilling rig's drill rod for a tunnel hydraulic drill. The device comprises a column, a crossbeam, and a drill rod sleeve. The crossbeam is transversely mounted on the column, and the drill rod sleeve is mounted on top of the crossbeam. The sleeve has a drill rod hole for the drill rod. This device stabilizes the drill rod near the construction surface, preventing drilling difficulties or azimuth or inclination deviations caused by an overly long drill rod.

[0005] However, this solution can only provide auxiliary support and stabilization for drilling rigs in fixed positions, and has limited adjustability. It is difficult to adapt to the stabilization requirements of drill rods of different heights, angles, and lengths, and has poor adaptability and versatility. Utility Model Content

[0006] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a precise straightening device for drill rods in coal mine tunnel anchor rod or anchor cable drilling construction, which solves the problem of poor adaptability and versatility caused by the limited adjustment capability of the stabilizing device in the prior art.

[0007] The technical solution of the present utility model is achieved as follows: a precise straightening device for drill rods in coal mine tunnel side anchor rods or side anchor cable drilling construction, comprising a pair of bases, which are adjustably connected by a spacing adjustment structure, each base is fixed with a column, a crossbeam is provided on the column, and a height adjustment structure is provided between the column and the crossbeam, a support platform is provided on the crossbeam, a position adjustment structure is provided between the support platform and the crossbeam, and a single anchor drilling rig is placed and fixed on the support platform.

[0008] Preferably, the base includes an elongated base crossbar, and the base crossbar cooperates with the spacing adjustment structure.

[0009] Preferably, the spacing adjustment structure includes a base tie rod, a base cross bar having a through hole for the base tie rod to pass through, both ends of the base tie rod respectively passing through the base cross bar, and a plurality of first matching holes are provided on the base tie rod at equal intervals, and the base cross bar and the base tie rod are connected by a connecting member that cooperates with different first matching holes to achieve spacing adjustment. The connecting member is a pin or a bolt.

[0010] Preferably, a sliding seat is fixed to one end of the crossbeam, a sliding hole is vertically provided on the sliding seat, and the sliding seat is slidably matched with the column through the sliding hole.

[0011] Preferably, the height adjustment structure includes a plurality of second matching holes provided on the column at equal intervals, and the slide seat is provided with a pin or a bolt for matching with the second matching holes.

[0012] Preferably, the position adjustment structure includes a plurality of third matching holes provided at equal intervals on the crossbeam, and a plug-in shaft is fixedly provided at the bottom of the support platform, and the plug-in shaft is plug-fitted with the third matching holes.

[0013] Preferably, the support platform is provided with an arc-shaped mating surface. The end of the beam is provided with a limit block. The lower end of the plug-in shaft is threadedly connected with a nut for locking.

[0014] The beneficial effects of the present invention are as follows: by providing a base, a support foundation can be formed; by providing a spacing adjustment mechanism, the distance between the two bases can be adjusted; by providing a support platform, a drilling rig can be supported, and the horizontal position and angle can be adjusted through the position adjustment structure; by providing pillars, beams and support platforms on the two bases respectively, two parts of the drilling rig can be supported at the same time, thereby improving the stability of the support; at the same time, the height and pitch angle of the supported drilling rig can be adjusted through the height adjustment structure. The present device can realize the up and down movement of the anchor rod (cable) drilling hole and the adjustment of the drilling angle according to the size of the tunnel cross section, thereby ensuring the quality of the drilling construction and creating conditions for the reliable anchoring of the anchor rod (cable); the present device has a simple structure and is easy to operate, and is easy to achieve accurate positioning of the drilling hole during the tunnel anchor rod (cable) drilling construction process. The setting of this device overcomes the disadvantages of high labor intensity, construction difficulty for workers, easy deviation of drilling angle and small height of drilling rig in the side anchor rod (cable) drilling construction of tunnel, and realizes the up and down movement and angle adjustment of the side anchor rod (cable) drilling rig supported by the platform, which is suitable for side anchor rod (cable) drilling in different tunnel sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] In the figure: 1: base, 2: spacing adjustment structure, 3: column, 4: beam, 5: height adjustment structure, 6: support platform, 7: position adjustment structure, 8: base cross bar, 9: base pull rod, 10: first matching hole, 11: connecting part, 12: sliding seat, 13: second matching hole, 14: third matching hole, 15: plug-in shaft, 16: limit block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1As shown, embodiment 1 is a device for precisely straightening drill rods for drilling construction of side anchor rods or side anchor cables in coal mine tunnels, comprising a pair of bases 1, which can form a supporting foundation. The two bases 1 are adjustably connected by a spacing adjustment structure 2, and the distance between the two bases can be adjusted by the spacing adjustment mechanism to adapt to the width of the tunnel. The bases 1 are each fixed with a column 3, a crossbeam 4 is provided on the column 3, and a height adjustment structure 5 is provided between the column 3 and the crossbeam 4, a support platform 6 is provided on the crossbeam 4, and a position adjustment structure 7 is provided between the support platform 6 and the crossbeam 4. In this embodiment, the support platform can cooperate with the crossbeam to support the drilling rig. By respectively arranging pillars, crossbeams and support platforms on the two bases, two parts of the drilling rig can be supported at the same time, thereby improving the stability of the support, and the horizontal position and angle of the drilling rig can be adjusted by the position adjustment structure.

[0020] As a further embodiment, the base 1 includes an elongated base crossbar 8, and the spacing adjustment structure 2 includes a base pull rod 9. The base crossbar 8 is provided with a through hole for the base pull rod 9 to pass through. The two ends of the base pull rod 9 pass through the base crossbar 8 respectively, and the base pull rod 9 is provided with a plurality of first matching holes 10 at equal intervals. When in use, the base crossbar 8 and the base pull rod 9 are matched with different first matching holes 10 by a connecting member 11 to achieve spacing adjustment. In this embodiment, the connecting member 11 is a pin or a bolt. When it is a pin, the base crossbar is provided with a through hole corresponding to the first matching hole, and the pin is passed through the through hole and the first matching hole. When it is a bolt, the base crossbar is provided with a threaded hole for setting the bolt. The bolt is threadedly connected to the threaded hole, and the end of the bolt is inserted into the first matching hole to determine the position between the base pull rod and the base crossbar.

[0021] When this embodiment is in use, the spacing between the two bases is adjusted using a spacing adjustment mechanism according to the size of the tunnel cross section and the size of the drilling rig. At the same time, the height of the crossbeam set on the column is adjusted using a height adjustment structure. At the same time, the height of the two crossbeams can be made different according to the drilling angle requirements, thereby adjusting the overall height and pitch angle of the supported drilling rig. Finally, the position of the support platform on the crossbeam is adjusted according to the drilling angle requirements, thereby adjusting the horizontal angle of the drilling rig. This device realizes the up and down movement of the anchor rod (cable) drilling and the adjustment of the drilling angle, which can ensure the quality of the drilling construction and create conditions for the reliable anchoring of the anchor rod (cable). In addition, this device has a simple structure and is easy to operate, and it is easy to achieve accurate positioning of the drilling during the construction of the anchor rod (cable) drilling on both sides of the tunnel.

[0022] Example 2, a device for precisely straightening drill rods used in coal mine roadway anchor or anchor cable drilling, is based on Example 1. A slide 12 is fixed to one end of a crossbeam 4. Slide 12 has a vertically defined sliding hole, which slides with a column 3. In this embodiment, the column is a rectangular column, the slide is a rectangular block fixed to one end of the crossbeam, and the sliding hole is a rectangular hole that mates with the rectangular column.

[0023] The height adjustment structure 5 includes several second mating holes 13 spaced evenly apart on the columns 3. The slide 12 is provided with pins or bolts that engage with the second mating holes 13. To adjust the height of the beam, the pins or bolts are removed, the slide is moved to the desired height, and then the pins or bolts are inserted into the second mating holes to secure the position between the slide and the column.

[0024] As a further embodiment, the position adjustment structure 7 includes a plurality of third mating holes 14 formed at equal intervals on the crossbeam 4. A plug-in shaft 15 is fixedly provided at the bottom of the support platform 6, and the plug-in shaft 15 engages with the third mating holes 14. By changing the engagement of the plug-in shaft with different third mating holes, the position of the support platform on the crossbeam is fixed.

[0025] In addition, an arcuate matching surface is provided on the supporting platform 6 so that the drilling rig can be placed better and the drilling rig can be kept stable. A limit block 16 is provided at the end of the crossbeam 4 to prevent the drilling rig from sliding.

[0026] As a further optional embodiment, an external thread is provided at the lower end of the plug-in shaft. After determining and adjusting the angle and position of the support platform, the relative position of the support platform is locked by threading a nut at the lower end of the plug-in shaft 15. When the third mating holes connected to the two plug-in shafts on the two beams do not correspond, the support platform is tilted at a certain angle, and the axes of the arc-shaped mating surfaces of the two support platforms are made to coincide, so as to support the drilling rig and change the angle of the drilling rig in the horizontal direction to a certain extent. When the heights of the two beams are inconsistent, the pitch angle direction of the drilling rig can be controlled. As a conventional optional embodiment, after the drilling rig is placed on the arc-shaped mating surface of the support platform, a conventional clamp or conventional strap is provided between the support platform and the drilling rig to fix the drilling rig and the support platform.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for accurately straightening a drill rod for drilling a side anchor rod or side anchor cable in a coal mine tunnel, characterized by: The invention comprises a pair of bases (1), wherein the two bases (1) are adjustably connected via a spacing adjustment structure (2), wherein a column (3) is fixedly provided on each of the bases (1), a crossbeam (4) is provided on the column (3), and a height adjustment structure (5) is provided between the column (3) and the crossbeam (4), wherein a support platform (6) is provided on the crossbeam (4), and a position adjustment structure (7) is provided between the support platform (6) and the crossbeam (4).

2. The device for precisely straightening a drill rod for drilling a side anchor rod or side anchor cable in a coal mine tunnel according to claim 1, characterized in that: The base (1) comprises a long base crossbar (8), and the base crossbar (8) cooperates with the spacing adjustment structure (2).

3. The device for precisely straightening a drill rod for drilling a side anchor rod or side anchor cable in a coal mine tunnel according to claim 2, characterized in that: The spacing adjustment structure (2) includes a base pull rod (9), a base cross bar (8) provided with a through hole for the base pull rod (9) to pass through, two ends of the base pull rod (9) respectively pass through the base cross bar (8), and a plurality of first matching holes (10) are provided on the base pull rod (9) at equal intervals, and the base cross bar (8) and the base pull rod (9) are connected by a connecting piece (11) to cooperate with different first matching holes (10) to achieve spacing adjustment.

4. The device for precisely straightening a drill rod for drilling a side anchor rod or side anchor cable in a coal mine tunnel according to claim 3, characterized in that: The connecting member (11) is a pin or a bolt.

5. The device for precisely straightening a drill rod for drilling a side anchor rod or side anchor cable in a coal mine tunnel according to any one of claims 1 to 4, characterized in that: A sliding seat (12) is fixed to one end of the crossbeam (4), and a sliding hole is vertically provided on the sliding seat (12), and the sliding seat slidably cooperates with the column (3) through the sliding hole.

6. The device for precisely straightening a drill rod for drilling side anchor rods or side anchor cables in coal mine tunnels according to claim 5, characterized in that: The height adjustment structure (5) comprises a plurality of second matching holes (13) provided at equal intervals on the column (3), and a pin or a bolt for matching with the second matching holes (13) is provided on the slide seat (12).

7. The device for precisely straightening a drill rod for drilling side anchor rods or side anchor cables in a coal mine tunnel according to claim 6, characterized in that: The position adjustment structure (7) includes a plurality of third matching holes (14) provided at equal intervals on the crossbeam (4), and a plug-in shaft (15) is fixedly provided at the bottom of the support platform (6), and the plug-in shaft (15) is plug-fitted with the third matching holes (14).

8. The device for precisely straightening a drill rod for drilling side anchor rods or side anchor cables in coal mine tunnels according to claim 7, characterized in that: The support platform (6) is provided with an arc-shaped matching surface.

9. The device for precisely straightening a drill rod for drilling side anchor rods or side anchor cables in a coal mine tunnel according to claim 8, characterized in that: A limit block (16) is provided at the end of the crossbeam (4).

10. The device for accurately straightening a drill rod for drilling side anchor rods or side anchor cables in coal mine tunnels according to claim 9, characterized in that: The lower end of the plug-in shaft (15) is threadedly connected with a nut for locking.

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