Construction method of a coal mine underground drilling construction safety platform

Abstract

This invention discloses a safety platform and construction method for underground drilling in coal mines. The safety platform includes a base frame and outriggers. Side baffles are installed on both sides of the base frame, a protective net is installed in the middle of the base frame, outriggers are installed at the bottom of the base frame, a displacement plate is installed above the protective net, a cylinder is rotatably connected to the middle of the displacement plate, and insert rods penetrate both ends of the displacement plate. A support frame is installed at the right end of the insert rods, a U-shaped plate is inserted above the support frame, a first support rod penetrates the middle of the U-shaped plate, and a second support rod is inserted inside the first support rod. This invention, by installing a partition on the displacement plate and rotatably connecting the cylinder within the partition, ensures that the bottom of the anchor drilling rig support can make stable contact with the cylinder. The inclined surface of the second support rod provides further support to the back of the anchor drilling rig, thus stabilizing the drilling rig support, improving efficiency, ensuring construction quality, and being convenient, simple to operate, and easy to promote.

Description

Technical Field

[0001] This invention relates to a drilling construction auxiliary device, and more particularly to a safety platform and construction method for underground drilling construction in coal mines, belonging to the field of underground support technology. Background Technology

[0002] Coal mine underground support involves constructing a certain length of anchor bolts and mesh within the rock and soil mass, forming a composite structure with the rock and soil to compensate for insufficient strength and provide anchoring, thus ensuring slope stability. When support personnel drill holes in the wall, they often use a scaffold to drill holes at higher elevations. During this process, because the workers are positioned on a semi-high scaffold, the anchor bolt drilling rig's support may not be in contact with the ground or the scaffold, resulting in instability during drilling. This severely affects the drilling progress and quality, and also poses significant safety hazards. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a safety platform and construction method for underground drilling in coal mines, which can provide stable support for the anchor drill support and ensure the stability and safety of the construction.

[0004] The technical solution adopted by this invention to solve the technical problem is as follows:

[0005] A safety platform for underground drilling in coal mines includes a base frame and outriggers. Side baffles are provided on both sides of the base frame, a protective net is provided in the middle of the base frame, outriggers are provided at the bottom of the base frame, a displacement plate is provided above the protective net, two partitions are provided on the displacement plate, and an insert is rotatably connected between the two partitions. Insert plates are provided at both ends of the displacement plate, a support block is provided at the right end of the insert plate, an insert rod passes through the support block, a support frame is provided at the right end of the insert rod, a U-shaped plate is inserted above the support frame, a first support rod passes through the middle of the U-shaped plate, a second support rod is inserted into the first support rod, and the first and second support rods are fixedly connected together by bolts.

[0006] Rectangular insertion holes are dug on both sides of the top surface of the support frame. The U-shaped plate is inserted into the rectangular insertion holes and fixed with bolts. A positioning cylinder is provided in the middle of the top surface of the U-shaped plate. The first support rod passes through the positioning cylinder, the U-shaped plate, the support frame and the protective net in sequence and is located on the ground.

[0007] The top of the second support rod is a slope.

[0008] The protective net has displacement grooves on both sides, and the bottom of the displacement plate is slidably connected to the displacement grooves by a slider.

[0009] The insert plate is inserted into the side baffle and fixedly connected to the side baffle by bolts. The support block and the insert rod are fixedly connected to each other by bolts.

[0010] The bottom of the support frame is in contact with the protective net, and the outer wall of the support frame is provided with at least three bolts.

[0011] The partition plate is provided with tightening bolts on the outside for fixing the insert.

[0012] The construction method for a safety platform for underground drilling in coal mines includes the following steps:

[0013] S1. Place the base frame on one side of the wall where drilling is required, and add padding to the bottom of the legs according to the flatness of the ground at the construction site to ensure overall stability.

[0014] S2. Adjust the position of the displacement plate and the support frame according to the drilling position and the tilt angle of the lower support of the anchor drilling rig, and fix them with bolts on the outside of the insertion plate;

[0015] S3. The staff stands on the protective net and lifts the anchor drilling machine onto the protective net, so that the support of the anchor drilling machine is inserted into the cylinder. By adjusting the tilt angle of the support, the drill bit is aligned with the wall.

[0016] S4. According to the position of the anchor bolt bracket, move the U-shaped plate and pull the second support rod out from the first support rod until the inclined surface at the top of the second support rod is pressed against the bottom surface of the bracket. At this time, fix the second support rod with the bolts on the outside of the first support rod, and a support point is formed on the back of the anchor bolt drilling machine bracket.

[0017] S5. After the second support rod is adjusted, the operator can start the drilling machine to perform drilling operations. If drilling is completed and drilling is required in other locations, the operator can move the bottom of the anchor rod bracket along the inside of the insert, and at the same time move the U-shaped plate and adjust the height of the second support rod.

[0018] During construction, adjust the U-shaped plate according to the position of the back of the anchor bolt bracket, then insert the first support rod into the positioning cylinder. When lowering the first support rod, the bottom of the first support rod needs to touch the ground. Then, insert the second support rod on top of the first support rod and adjust the height of the second support rod to support the back of the anchor bolt bracket.

[0019] The positive and beneficial effects of this invention are:

[0020] 1. This invention provides a partition plate on the displacement plate and a rotatable insert between the partition plates. In use, the lower end of the anchor drilling rig bracket is inserted into the corresponding partition plate, so that the bottom of the anchor drilling rig bracket can make stable contact with the insert. When the anchor drilling rig bracket is tilted at a certain angle, it is tightened by the inclined surface of the second support rod, thereby providing support for the back of the anchor drilling rig and thus making the drilling rig bracket in a stable state.

[0021] 2. This invention inserts U-shaped plates into the rectangular through holes on both sides of the support frame. During use, the position of the U-shaped plates can be adjusted according to the position of the drilling rig. Then, the first support rod is inserted into the positioning cylinder, so that the inclined surface of the second support rod can accurately contact the back of the drilling rig support, ensuring the accuracy of the support point.

[0022] 3. By setting a protective net on the bottom frame, the present invention allows workers to stand on the protective net without affecting the penetration of the first support rod; at the same time, the drilling dust will fall to the ground through the protective net, so workers do not need to clean it separately. It is convenient to use and simple to operate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the bottom frame of the present invention;

[0025] Figure 3 This is a partial structural schematic diagram of the displacement plate of the present invention;

[0026] Figure 4 This is a schematic diagram of the support frame of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the insert and partition of the present invention;

[0028] Among them: 1-bottom frame, 2-side baffle, 3-displacement groove, 4-protective net, 5-displacement plate, 6-insertion plate, 7-support block, 8-partition plate, 9-insertion cylinder, 10-insertion rod, 11-tightening bolt, 12-support frame, 13-rectangular insertion hole, 14-U-shaped plate, 15-positioning cylinder, 16-bolt, 17-first support rod, 18-second support rod, 19-support leg. Detailed Implementation

[0029] The invention will be further explained and described below with reference to the accompanying drawings:

[0030] Example 1, see Figures 1-5A safety platform for underground drilling in coal mines includes a base frame 1 and outriggers 19. Side baffles 2 are provided on both sides of the base frame 1, a protective net 4 is provided in the middle of the base frame 1, outriggers 19 are provided at the bottom of the base frame 1, a displacement plate 5 is provided above the protective net 4, two partitions 8 are provided on the displacement plate 5, and an insert 9 is rotatably connected between the two partitions 8. Insert plates 6 are provided at both ends of the displacement plate 5, a support block 7 is provided at the right end of the insert plate 6, an insert rod 10 passes through the support block 7, a support frame 12 is provided at the right end of the insert rod 10, a U-shaped plate 14 is inserted above the support frame 12, a first support rod 17 passes through the middle of the U-shaped plate 14, a second support rod 18 is inserted into the first support rod 17, and the first support rod 17 and the second support rod 18 are fixedly connected together by bolts.

[0031] Rectangular insertion holes 13 are dug on both sides of the top surface of the support frame 12. The U-shaped plate 14 is inserted into the rectangular insertion holes 13 and fixed by bolts. A positioning cylinder 15 is set in the middle of the top surface of the U-shaped plate 14. The first support rod 17 passes through the positioning cylinder 15, the U-shaped plate 14, the support frame 12 and the protective net 4 in sequence and is located on the ground.

[0032] The top of the second support rod 18 is a slope.

[0033] Displacement grooves 3 are dug on both sides of the protective net 4, and the bottom of the displacement plate 5 is slidably connected to the displacement grooves 3 by a slider.

[0034] The insert plate 6 is inserted into the side baffle 2 and is fixedly connected to the side baffle 2 by bolts. The support block 7 and the insert rod 10 are fixedly connected to each other by bolts.

[0035] The bottom of the support frame 12 is in contact with the protective net 4, and at least three bolts are provided on the outer wall of the support frame 12.

[0036] The outside of the partition 8 is provided with a tightening bolt for fixing the insert 9.

[0037] In the above description, the bottom frame has a rectangular through hole in the middle, which is covered by a protective net. The protective net is welded to the perimeter of the rectangular through hole, and the inner diameter of a single mesh in the protective net satisfies that the first support rod can pass through it.

[0038] In the above description, the side baffle is located outside the protective netting.

[0039] In the above description, the displacement plate and the insert plate are an integral structure, and the displacement plate can move along the top of the bottom frame.

[0040] In the above description, the two ends of the support frame are fixedly connected to the ends of the corresponding insert rods, and at least three bolts are provided on the outer wall of the support frame.

[0041] In the above description, the inner diameter of the positioning cylinder at the top of the U-shaped plate is sufficient to allow the first support rod to be inserted into the positioning cylinder. The first support rod is telescopic and is fixed by bolts, which are located on the outer wall at the top of the first support rod.

[0042] In the above description, the inclination of the insert is adjusted according to the inclination angle of the drill pipe support, and then fixed by the tightening bolts. Example

[0043] The above-mentioned construction method for a safety platform for underground drilling in coal mines includes the following steps:

[0044] S1. Place the bottom frame 1 on one side of the wall that needs to be drilled, and add padding to the bottom of the support leg 19 according to the flatness of the ground at the construction site to ensure the overall stability.

[0045] S2. Adjust the position of the displacement plate 5 and the support frame 12 according to the drilling position and the tilt angle of the lower support of the anchor drilling machine, and fix them with the bolts on the outside of the insert plate 6.

[0046] S3. The staff stands on the protective net and lifts the anchor drilling machine onto the protective net, so that the support of the anchor drilling machine is inserted into the cylinder. By adjusting the tilt angle of the support, the drill bit is aligned with the wall. Finally, it is fixed by the tightening bolts on the outside of the partition.

[0047] S4. According to the position of the anchor rod bracket, move the U-shaped plate and pull the second support rod 18 out from the first support rod 17 until the inclined surface at the top of the second support rod 18 presses against the bottom surface of the bracket. At this time, fix the second support rod 18 with the bolts on the outside of the first support rod 17, and a support point is formed on the back of the anchor rod drilling machine bracket.

[0048] S5. After the second support rod 18 is adjusted, the operator can start the drill to perform drilling. If drilling is completed and drilling is required in other locations, the operator can move the bottom of the anchor rod bracket along the inside of the insert 9, and at the same time move the U-shaped plate 14 and adjust the height of the second support rod 18.

[0049] During construction, based on the position of the back of the anchor rod bracket, first adjust the U-shaped plate 14, then insert the first support rod 17 into the positioning cylinder 15. When lowering the first support rod 17, the bottom of the first support rod 17 needs to contact the ground. Then, insert the second support rod 18 at the top of the first support rod 17 and adjust the height of the second support rod 18 to support the back of the anchor rod bracket.

[0050] In the above description, the dimensions of the insert are such that the bottom of the anchor rod support can be placed inside the insert, and the bottom of the anchor rod can be moved along the inside of the insert according to the construction location.

[0051] When changing drilling positions, first move the bottom of the drilling rig support along the inside of the insert to the new drilling point, and then support the back of the drilling rig support with the second support rod.

[0052] When drilling is complete and the drill rod is removed, the workers only need to move the displacement plate and support frame horizontally.

[0053] This invention features a partition plate on a displacement plate, with a rotatable insert connected within the partition plate. During use, the lower end of the anchor bolt drilling rig support is inserted into the insert, ensuring a stable contact between the bottom of the support and the insert. When the anchor bolt drilling rig support tilts at a certain angle, the inclined surface of the second support rod provides support to the back of the anchor bolt drilling rig, thus stabilizing the support. This prevents the drilling rig from being unstable during operation, improving efficiency, ensuring construction quality, and offering convenient and easy-to-operate features that are readily adopted.

Claims

1. A construction method for a coal mine underground drilling safety platform, comprising a coal mine underground drilling safety platform, the coal mine underground drilling safety platform comprising a base frame (1) and support legs (19), side baffles (2) provided on both sides of the base frame (1), a protective net (4) provided in the middle of the base frame (1), support legs (19) provided at the bottom of the base frame (1), a displacement plate (5) provided above the protective net (4), two partitions (8) vertically provided on the displacement plate (5), and a rotatable connection between the two partitions (8). The insert (9) has insert plates (6) at both ends of the displacement plate (5). A support block (7) is provided at the right end of the insert plate (6). An insert rod (10) passes through the support block (7). A support frame (12) is provided at the right end of the insert rod (10). A U-shaped plate (14) is inserted above the support frame (12). A first support rod (17) passes through the middle of the U-shaped plate (14). A second support rod (18) is inserted inside the first support rod (17). The first support rod (17) and the second support rod (18) are fixedly connected by bolts (16). Together; rectangular insertion holes (13) are dug on both sides of the top surface of the support frame (12), and the U-shaped plate (14) is inserted into the rectangular insertion holes (13) and fixed by bolts (16); a positioning cylinder (15) is provided in the middle of the top surface of the U-shaped plate (14), and the first support rod (17) passes through the positioning cylinder (15), the U-shaped plate (14), the support frame (12) and the protective net (4) in sequence, and is located on the ground; the top of the second support rod (18) is a slope; displacement grooves (3) are dug on both sides of the protective net (4), and the displacement plate (5) The bottom of the slide block is slidably connected to the displacement groove (3) by a slider; the insert plate (6) is inserted into the side baffle (2) and fixedly connected to the side baffle (2) by bolts (16); the support block (7) and the insert rod (10) are fixedly connected to each other by bolts (16); the bottom of the support frame (12) is in contact with the protective net (4); the outer wall of the support frame (12) is provided with at least three bolts (16); the outside of the partition plate (8) is provided with a tightening bolt (11) for fixing the insert (9); the characteristic is that, Includes the following steps: S1. Place the bottom frame (1) on one side of the wall that needs to be drilled, and add padding to the bottom of the support leg (19) according to the flatness of the ground at the construction site to ensure the overall stability. S2. Adjust the position of the displacement plate (5) and the support frame (12) according to the drilling position and the tilt angle of the lower support of the anchor drilling machine, and fix them by the bolts (16) on the outside of the insert plate (6); S3. The staff stands on the protective net and lifts the anchor drill above the protective net so that the support of the anchor drill is inserted into the tube. The drill bit is aligned with the wall by adjusting the tilt angle of the support. Finally, the tube is fixed by the tightening bolts (11) on the outside of the partition (8). S4. According to the position of the anchor rod bracket, move the U-shaped plate (14) and pull the second support rod (18) out from the first support rod (17) until the inclined surface at the top of the second support rod (18) presses against the bottom surface of the bracket. At this time, fix the second support rod (18) with the bolts (16) on the outside of the first support rod (17) so that a support point is formed on the back of the anchor rod drilling machine bracket. S5. After the second support rod (18) is adjusted, the staff starts the drilling machine to perform drilling operation. If drilling is completed, drilling needs to be continued in other positions. The staff moves the bottom of the anchor rod bracket along the inside of the insert (9), and moves the U-shaped plate (14) at the same time to adjust the height of the second support rod (18).

2. The construction method of a safety platform for underground drilling in coal mines according to claim 1, characterized in that: During construction, according to the position of the back of the anchor rod bracket, first adjust the U-shaped plate (14), then insert the first support rod (17) into the positioning cylinder (15). When the first support rod (17) is lowered, the bottom of the first support rod (17) needs to contact the ground. Then, insert the second support rod (18) at the top of the first support rod (17) and adjust the height of the second support rod (18) to support the back of the anchor rod bracket.

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