Anchor rod hanging net construction platform and construction method for underground coal mine tunnel

Abstract

The present invention discloses an anchor net hanging construction platform and a construction method for underground lanes in coal mines, wherein: the construction platform comprises a first U-shaped frame, a displacement frame, a displacement cross bar and a supporting ramp, a second U-shaped frame is slidably connected to the left side of the first U-shaped frame, a material receiving bucket is arranged in the second U-shaped frame, a displacement frame is inserted at the left end of the first U-shaped frame, a displacement plate is sleeved on the displacement frame, a supporting ramp is arranged above the first U-shaped frame, and the left end of the supporting ramp is fixedly connected to the displacement cross plate. The present invention enables workers to be located at a construction height by arranging the supporting ramp, reduces the burden brought by lifting with both arms, and improves the accuracy of anchor net hanging. At the same time, by arranging the second U-shaped frame with a material receiving bucket, the damage rate of the anchor net during construction is avoided, and the invention is convenient to use, simple to operate, and easy to promote.

Description

Technical Field

[0001] The invention relates to an underground coal mine construction platform, in particular to an anchor rod hanging net construction platform and a construction method for underground coal mine tunnels, belonging to the technical field of underground mine excavation construction. Background Art

[0002] At present, the commonly used mine tunnel support methods are mostly the combination of anchor rods and anchor nets, which are fixed to the walls of the tunnel, thus providing safety guarantees for underground coal mine construction; in actual construction, it is easy to hang nets on the lower walls of the tunnel, while the hanging nets on the higher walls of the tunnel have the following difficulties: due to the high construction position, when the workers are carrying out the hanging net construction, they often need multiple workers to use both hands to lift the anchor net to the required installation height, and then use anchor rods to fix the anchor net to the wall of the tunnel. In this process, since the workers hold the anchor net with their hands for a long time, it is not only time-consuming and laborious, but also easy for the anchor net to shift and fall, posing certain safety hazards; at the same time, during construction, since most of the anchor nets are piled on the ground, it is easy for the anchor net to be stepped on or deformed, thereby increasing the loss rate of the anchor net. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an anchor rod mesh construction platform and a construction method for underground mine tunnels, so as to reduce the burden on the staff and facilitate the staff to quickly and accurately carry out mesh construction.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A construction platform for anchor rod net hanging for underground tunnels in coal mines, comprising a first U-shaped frame, a displacement frame, a displacement cross plate and a supporting slope plate, wherein displacement frames are respectively inserted at both ends of the left side of the first U-shaped frame, and displacement cross plates are sleeved on the two displacement frames, a supporting slope plate is arranged above the first U-shaped frame, one end of the supporting slope plate is fixedly connected to the displacement cross plate, and the other end of the supporting slope plate is fixedly connected to the right end of the first U-shaped frame, a second U-shaped frame is slidably connected to the outer side of the first U-shaped frame, and pressure plates are arranged on the sides of the two end plates of the second U-shaped frame.

[0006] Concave holes are dug at both ends of the left side of the first U-shaped frame, and displacement frames are inserted into the concave holes, and the displacement frames are fixedly connected to the first U-shaped frame by bolts. The displacement frames are distributed in an L shape, and a roller is arranged at the bottom of the left end of the displacement frame. A support plate is arranged on the outer side of the displacement frame, and a screw rod is arranged on the support plate. Both ends of the displacement cross plate are sleeved on the screw rod, and a limiting nut is arranged on the screw rod below the displacement cross plate.

[0007] The top surfaces of both ends of the first U-shaped frame are provided with displacement grooves, one side of the bottom surface of the second U-shaped frame is slidably connected with the displacement groove through a slider, and a roller is provided on the other side of the bottom surface of the second U-shaped frame.

[0008] The second U-shaped frame is distributed in a U-shape, and a material receiving bucket is placed in the second U-shaped frame, and the material receiving bucket is fixedly connected to the two end plates of the second U-shaped frame by bolts, and first studs are respectively arranged on the side surfaces of the two end plates of the second U-shaped frame, and a pressure plate is sleeved on the corresponding first studs on the left and right, and the pressure plate is fixedly connected to the first studs by bolts.

[0009] The top surface of the displacement cross plate and the right end of the first U-shaped frame are respectively provided with second studs, one end of the supporting ramp is sleeved on the second stud on the displacement cross plate, and the other end of the supporting ramp is sleeved on the second stud on the right end of the first U-shaped frame, and both are fixed by nuts, and at least five limit rods are provided on the supporting ramp.

[0010] The supporting ramp is higher on the left and lower on the right, and a second positioning sleeve is provided at the left end of the supporting ramp, a plug plate is inserted into the second positioning sleeve and fixed by bolts, and a hook plate is provided at the left end of the plug plate.

[0011] A connecting plate is arranged between the inner walls of the first U-shaped frame, and a first positioning sleeve is arranged on the connecting plate. A pillar is inserted into the first positioning sleeve and fixed by bolts. A supporting inclined plate is arranged on the top of the pillar, and the top surface of the supporting inclined plate is tightly attached to the bottom surface of the supporting slope plate.

[0012] The construction method of the anchor rod hanging net construction platform for underground coal mine tunnels comprises the following steps:

[0013] S1. Construction preparation:

[0014] ① Install a pressure plate on the upper part of the inner side of the two end plates of the second U-shaped frame, and put the anchor nets to be installed into the loading bucket in a stacked manner, so that the anchor nets are inclined against the pressure plate on the inner side of the second U-shaped frame;

[0015] ②. According to the height of the anchor net, install pressure plates on the outside of the two end plates of the second U-shaped frame, so that the superimposed anchor nets are inclined and lean against the pressure plates on the outside of the second U-shaped frame;

[0016] ③. According to the required construction position of the tunnel wall, move the displacement frame to the tunnel wall and fix it with bolts. Then, according to the construction height, move the displacement cross plate to a certain height and fix it with limit nuts. Finally, according to the distance between the displacement cross plate and the right end of the first U-shaped frame, install a suitable support slope plate.

[0017] S2. Specific operation steps:

[0018] ① Worker A walks along the supporting ramp to the top of the supporting ramp and moves the plug back along the second positioning sleeve;

[0019] ②. Have worker B push the second U-shaped frame to the left side of the supporting ramp, and cooperate with worker A to pull the anchor net out of the bucket in the second U-shaped frame;

[0020] ③. Worker A places the anchor net in the gap between the displacement frame and the tunnel wall, so that the bottom of the anchor net overlaps with the anchor nets below and around it;

[0021] ④. During construction, when the bottom of the anchor net is located below the displacement horizontal plate, the anchor net can be hooked on the hook plate by moving the plug plate, and the anchor net under construction and the surrounding anchor nets can be fixed at their joints;

[0022] ⑤. Construction: When the bottom of the anchor net is located above the displacement horizontal plate, the staff can directly fix the edge of the anchor net with the adjacent anchor net;

[0023] ⑥. After the adjacent anchor mesh overlaps are fixed, anchor rod fixing construction can be carried out on the anchor mesh and the tunnel wall.

[0024] The positive beneficial effects of the present invention are:

[0025] 1. The present invention can freely adjust according to the construction height by arranging the displacement cross plate and the displacement frame. By arranging the plug plate with a hook plate at the end, it plays a supporting role when the anchor net is hung, avoiding the deviation and falling of the anchor net when it is hung.

[0026] 2. The present invention can manage the anchor net in a unified manner by slidingly connecting the second U-shaped frame on one side of the first U-shaped frame, which is convenient for the staff to take and remove. At the same time, it avoids damage caused by the anchor net piling up on the bottom surface. It is easy to use and simple to operate.

[0027] 3. The present invention, by setting up the construction platform, is conducive to the workers to carry out construction quickly and safely, improves work efficiency, ensures construction quality, shortens the construction period, and has a wide range of applications and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a partial structural schematic diagram of the first U-shaped frame and the supporting ramp of the present invention;

[0030] Figure 3 It is a partial structural schematic diagram of the first U-shaped frame of the present invention;

[0031] Figure 4 It is a partial structural schematic diagram of the second U-shaped frame of the present invention;

[0032] Wherein: 1-first U-shaped frame, 10A-concave hole, 10B-second stud, 2-displacement frame, 3-roller, 4-displacement cross plate, 5-support plate, 6-screw, 7-limiting nut, 8-displacement groove, 9-connecting plate, 10-support slope plate, 11-limiting rod, 12-first positioning sleeve, 13-pillar, 14-support inclined plate, 15-second positioning sleeve, 16-insert plate, 17-hook plate, 18-second U-shaped frame, 19-carrying bucket, 20-first stud, 21-pressing plate. DETAILED DESCRIPTION

[0033] The present invention will be further explained and illustrated below in conjunction with the accompanying drawings:

[0034] Embodiment 1, an anchor net construction platform for underground coal mine tunnels, comprises a first U-shaped frame 1, a displacement frame 2, a displacement cross plate 4 and a supporting slope plate 10, wherein displacement frames 2 are respectively inserted at both ends of the left side of the first U-shaped frame 1, and displacement cross plates 4 are sleeved on the two displacement frames 2, a supporting slope plate 10 is arranged above the first U-shaped frame 1, one end of the supporting slope plate 10 is fixedly connected to the displacement cross plate 4, and the other end of the supporting slope plate 10 is fixedly connected to the right end of the first U-shaped frame 1, a second U-shaped frame 18 is slidably connected to the outer side of the first U-shaped frame 1, and pressure plates 21 are arranged on the sides of the two end plates of the second U-shaped frame 18.

[0035] Concave holes 10 are dug at both ends of the left side of the first U-shaped frame 1, and a displacement frame 2 is inserted into the concave hole 10A, and the displacement frame 2 is fixedly connected to the first U-shaped frame 1 by bolts. The displacement frame 2 is distributed in an L shape, and a roller 3 is arranged at the bottom of the left end of the displacement frame 2, a support plate 5 is arranged on the outer side of the displacement frame 2, and a screw rod 6 is arranged on the support plate 5, both ends of the displacement cross plate 4 are sleeved on the screw rod 6, and a limiting nut 7 is arranged on the screw rod 6 below the displacement cross plate 4.

[0036] The top surfaces of both ends of the first U-shaped frame 1 are provided with displacement grooves 8 , one side of the bottom surface of the second U-shaped frame 18 is slidably connected to the displacement groove 8 through a slider, and a roller 3 is provided on the other side of the bottom surface of the second U-shaped frame 18 .

[0037] The second U-shaped frame 18 is distributed in a U-shape, and a receiving bucket 19 is placed in the second U-shaped frame 18, and the receiving bucket 19 is fixedly connected to the two end plates of the second U-shaped frame 18 by bolts. First studs 20 are respectively arranged on the side surfaces of the two end plates of the second U-shaped frame 18, and a pressure plate 21 is sleeved on the corresponding first studs 20 on the left and right, and the pressure plate 21 is fixedly connected to the first studs 20 by bolts.

[0038] The top surface of the displacement cross plate 4 and the right end of the first U-shaped frame 1 are respectively provided with second studs 10B. One end of the supporting ramp 10 is sleeved on the second stud 10B on the displacement cross plate 4. The other end of the supporting ramp 10 is sleeved on the second stud 10B at the right end of the first U-shaped frame 1. Both are fixed by nuts. At least five limit rods 11 are provided on the supporting ramp 10.

[0039] The support ramp 10 is higher on the left and lower on the right, and a second positioning sleeve 15 is provided at the left end of the support ramp 10. An insert plate 16 is inserted into the second positioning sleeve 15 and fixed by bolts. A hook plate 17 is provided at the left end of the insert plate 16.

[0040] A connecting plate 9 is provided between the inner walls of the first U-shaped frame 1, and a first positioning sleeve 12 is provided on the connecting plate 9. A pillar 13 is inserted into the first positioning sleeve 12 and fixed by bolts. A supporting inclined plate 14 is provided on the top of the pillar 13, and the top surface of the supporting inclined plate 14 is tightly attached to the bottom surface of the supporting ramp plate 10.

[0041] In the above description, the two ends of the supporting ramp are respectively connected to flat plates parallel to the displacement cross plate and the first U-shaped frame, and second studs are respectively arranged at the right ends of the displacement cross plate and the first U-shaped frame. Through holes are arranged on the flat plates at both ends of the supporting ramp corresponding to the positions of the second studs, and the flat plates are sleeved on the second studs and fixed by matching nuts.

[0042] In the above description, the height of the supporting inclined plate satisfies: being in close contact with the bottom surface of the supporting slope plate.

[0043] In the above description, through holes are respectively dug at the lower parts of the two end plates of the second U-shaped frame, and the same through holes are also dug at the positions corresponding to the outer walls of the hopper, and the hopper and the end plates of the second U-shaped frame are fixed by bolts and nuts.

[0044] In the above description, the bottom of the object receiving bucket is tightly attached to the bottom of the inner wall of the second U-shaped frame.

[0045] In the above description, the positions of the pressure plates on both sides of the second U-shaped frame meet the following conditions:

[0046] ①, Inside: Located in the middle of the anchor net, it does not affect the staff to pull the anchor net out of the bucket;

[0047] ②. Outer side: Located above the middle of the anchor net, it can provide support when the anchor net is leaning against the pressure plate.

[0048] In the above description, the roller on the outer side of the bottom surface of the second U-shaped frame is in contact with the ground, the inner side of the bottom surface of the second U-shaped frame is a slider matching the displacement groove, and the outer side of the second U-shaped bottom surface is a roller.

[0049] In the above description, when the displacement rack is inserted into the concave hole, there is a distance between its bottom and the bottom surface. By arranging rollers at the bottom of the displacement rack, a supporting effect is played and the movement of the displacement rack is also facilitated. Example

[0050] A construction method for an anchor rod hanging net construction platform for underground coal mine tunnels comprises the following steps:

[0051] S1. Construction preparation:

[0052] ①, install the pressing plate 21 on the upper part of the inner side of the two end plates of the second U-shaped frame 18, and put the anchor nets to be installed into the receiving bucket 19 in a stacked manner, so that the anchor nets are inclined against the pressing plate 21 on the inner side of the second U-shaped frame 18;

[0053] ②, according to the height of the anchor net, install the pressure plate 21 on the outer side of the two end plates of the second U-shaped frame 18, so that the superimposed anchor nets are inclined and lean against the pressure plate 21 on the outer side of the second U-shaped frame 18;

[0054] ③. According to the required construction position of the tunnel wall, move the displacement frame 2 to the tunnel wall and fix it with bolts. Then, according to the construction height, move the displacement cross plate 4 to a certain height and fix it with the limit nut 7. Finally, according to the distance between the displacement cross plate 4 and the right end of the first U-shaped frame 1, install a suitable support ramp 10.

[0055] S2. Specific operation steps:

[0056] ① Worker A walks along the supporting ramp 10 to the top of the supporting ramp 10 and moves the inserting plate 16 backward along the second positioning sleeve 15;

[0057] ② Worker B pushes the second U-shaped frame 18 to the left side of the supporting ramp 10, and cooperates with worker A to pull the anchor net out of the receiving bucket 19 in the second U-shaped frame 18;

[0058] ③. Worker A places the anchor net in the gap between the displacement frame 2 and the tunnel wall, so that the bottom of the anchor net overlaps with the anchor nets below and around it;

[0059] ④. During construction, when the bottom of the anchor net is located below the displacement horizontal plate 4, the anchor net can be hooked on the hook plate 17 by moving the plug plate 16, and the anchor net under construction and the surrounding anchor nets are fixed at their overlaps;

[0060] ⑤. Construction: when the bottom of the anchor net is located above the displacement horizontal plate 4, the staff can directly fix the edge of the anchor net with the adjacent anchor net;

[0061] ⑥. After the adjacent anchor mesh overlaps are fixed, anchor rod fixing construction can be carried out on the anchor mesh and the tunnel wall.

[0062] In actual construction, anchor nets are mostly piled up on the ground in a messy manner. During construction, the anchor nets are often trampled, and construction workers may be tripped, posing certain safety hazards.

[0063] By setting up the supporting slope, it is convenient for the workers to walk along the slope to the side of the tunnel wall, which is convenient for the workers to carry out construction. At the same time, when fixing the anchor rods, a limit rod is set on the supporting slope to provide a fulcrum for the bottom of the electric drill, which is convenient for the electric drill to quickly carry out drilling construction when it is in an inclined state.

[0064] The present invention provides a supporting slope so that workers can be located at a construction height, reducing the burden caused by lifting with both arms and improving the accuracy of hanging the anchor net. At the same time, by providing a second U-shaped frame with a receiving bucket, the damage rate of the anchor net during construction is avoided. The present invention is easy to use, simple to operate, and easy to promote.

Claims

1. An anchor rod net hanging construction platform for underground coal mine tunnels, comprising a first U-shaped frame (1), a displacement frame (2), a displacement cross plate (4) and a supporting slope plate (10), characterized in that: Displacement frames (2) are respectively inserted at the two ends of the left side of the first U-shaped frame (1), and a displacement transverse plate (4) is sleeved on the two displacement frames (2); a support ramp (10) is arranged above the first U-shaped frame (1), one end of the support ramp (10) is fixedly connected to the displacement transverse plate (4), and the other end of the support ramp (10) is fixedly connected to the right end of the first U-shaped frame (1); a second U-shaped frame (18) is slidably connected to the outer side of the first U-shaped frame (1), and a pressure plate (21) is arranged on the side of the two end plates of the second U-shaped frame (18); recessed holes (10A) are dug at the two ends of the left side of the first U-shaped frame (1), and a pressure plate (21) is arranged on the recessed holes (10A) to prevent the first U-shaped frame (18) from sliding. 0A) is inserted with a displacement frame (2), and the displacement frame (2) is fixedly connected to the first U-shaped frame (1) by bolts, the displacement frame (2) is distributed in an L shape, and a roller (3) is arranged at the bottom of the left end of the displacement frame (2), a support plate (5) is arranged on the outer side of the displacement frame (2), and a screw rod (6) is arranged on the support plate (5), the two ends of the displacement cross plate (4) are sleeved on the screw rod (6), and a limit nut (7) is arranged on the screw rod (6) below the displacement cross plate (4); the top surfaces of the two ends of the first U-shaped frame (1) are provided with displacement grooves (8), and one side of the bottom surface of the second U-shaped frame (18) is slidably connected to the displacement groove (8) through a slider. The second U-shaped frame (18) is arranged together, and a roller (3) is arranged on the other side of the bottom surface of the second U-shaped frame (18); the second U-shaped frame (18) is arranged in a U-shape, and a receiving bucket (19) is placed in the second U-shaped frame (18), and the receiving bucket (19) is fixedly connected to the two end plates of the second U-shaped frame (18) by bolts, and the side surfaces of the two end plates of the second U-shaped frame (18) are respectively provided with first studs (20), and a pressure plate (21) is sleeved on the first studs (20) corresponding to the left and right, and the pressure plate (21) is fixedly connected to the first studs (20) by bolts; the top surface of the displacement cross plate (4) and the right end of the first U-shaped frame (1) are respectively provided with A second stud (10B) is arranged, one end of the support ramp (10) is sleeved on the second stud (10B) on the displacement cross plate (4), and the other end of the support ramp (10) is sleeved on the second stud (10B) at the right end of the first U-shaped frame (1), and both are fixed by nuts, and at least five limit rods (11) are arranged on the support ramp (10); the support ramp (10) is distributed in a shape of being higher on the left and lower on the right, and a second positioning sleeve (15) is arranged at the left end of the support ramp (10), an insert plate (16) is inserted into the second positioning sleeve (15), and is fixed by bolts, and a hook plate (17) is arranged at the left end of the insert plate (16).

2. The anchor rod netting construction platform for underground coal mine tunnel according to claim 1, characterized in that: A connecting plate (9) is provided between the inner walls of the first U-shaped frame (1), and a first positioning sleeve (12) is provided on the connecting plate (9). A support column (13) is inserted into the first positioning sleeve (12) and fixed by bolts. A supporting inclined plate (14) is provided on the top of the support column (13), and the top surface of the supporting inclined plate (14) is tightly attached to the bottom surface of the supporting ramp plate (10).

3. A method for constructing an anchor rod netting construction platform for underground coal mine tunnels according to any one of claims 1-2, characterized in that: The steps include: S1. Construction preparation: ①, installing a pressing plate (21) on the upper part of the inner side of the two end plates of the second U-shaped frame (18), and placing the anchor nets to be installed in a stacked manner into the receiving bucket (19), so that the anchor nets are inclined against the pressing plate (21) on the inner side of the second U-shaped frame (18); ②, according to the height of the anchor net, the pressure plates (21) are installed on the outer sides of the two end plates of the second U-shaped frame (18), so that the anchor nets stacked together are distributed in an inclined shape and rest on the pressure plates (21) on the outer sides of the second U-shaped frame (18); ③. According to the required construction position of the tunnel wall, the displacement frame (2) is moved close to the tunnel wall, and the displacement frame is fixed to the first U-shaped frame by bolts. Then, according to the construction height, the height of the displacement cross plate (4) is moved and fixed by the limit nut (7). Finally, according to the distance between the displacement cross plate (4) and the right end of the first U-shaped frame (1), a suitable support slope plate (10) is installed. S2. Specific operation steps: ① Worker A walks along the supporting ramp (10) to the top of the supporting ramp (10), and moves the inserting plate (16) backward along the second positioning sleeve (15) so that the front end of the inserting plate (16) is away from the wall of the lane; ②, worker B pushes the second U-shaped frame (18) to the left side of the supporting ramp (10), and cooperates with worker A to pull the anchor net out of the receiving bucket (19) in the second U-shaped frame (18); ③ Worker A places the anchor net in the gap between the displacement frame (2) and the tunnel wall, so that the bottom of the anchor net overlaps with the anchor nets below and on both sides; ④ When the bottom of the anchor net is located below the displacement horizontal plate (4), the anchor net can be hooked on the hook plate (17) by moving the plug plate (16), and the anchor net is fixed to the surrounding anchor nets; ⑤. During construction, when the bottom of the anchor net is located above the displacement horizontal plate (4), the workers can directly fix the edge of the anchor net with the adjacent anchor nets; ⑥. After the adjacent anchor mesh overlaps are fixed, anchor rod fixing construction can be carried out on the anchor mesh and the tunnel wall.

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