A coal mine excavation support structure

Abstract

The utility model discloses a coal mine excavation support structure, which relates to the technical field of support structures. The utility model includes: a first bracket and a second bracket, wherein a baffle is arranged above the first bracket. When the utility model is in use, the user controls half of the resisting hydraulic rods to contract, and pushes the first bracket to move through a plurality of the pushing hydraulic rods, thereby driving the first bracket to move forward, and then controls the resisting hydraulic rod at the bottom of the first bracket to extend and resist on the ground, controls the resisting hydraulic rod at the bottom of the second bracket to contract, and controls a plurality of pushing hydraulic rods to drive the second bracket to move, and repeats this process, thereby realizing staggered driving of the first bracket and the second bracket. In this process, a plurality of resisting plates staggeredly resist on the ground. Compared with the traditional method in which only one end of the resisting hydraulic rod contacts the ground, this method makes the overall stability of the device stronger, and fully reflects the practicality of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting structures, in particular to a coal mine excavation supporting structure. Background Art

[0002] Coal mining refers to the process of extracting coal resources from coal mines using various mining methods. The main process flow of coal mining includes mining preparation, mining face development, support work, gas extraction, ventilation work and transportation work. These steps ensure the smooth progress of mining activities and protect the safety of operators.

[0003] At present, when mining coal, the tunnel is generally supported by supporting brackets before further excavation. The current supporting brackets can often move by themselves, and the self-movement method is generally to move them by supporting hydraulic rods. The contact area between several supporting hydraulic rods and the ground is often small, which affects the overall stability of the device. Therefore, a new type of coal mining support structure is needed to solve the above problems. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0005] A coal mine excavation support structure includes: a first bracket and a second bracket, a baffle is arranged above the first bracket, a plurality of pushing hydraulic rods are rotatably installed on the surface of the first bracket, the other ends of the plurality of pushing hydraulic rods are rotatably installed on the surface of the second bracket, a plurality of resisting hydraulic rods are fixedly installed on the bottom of the first bracket and the second bracket, and also includes a plurality of mounting rods, the plurality of mounting rods are respectively fixedly installed on one end of the plurality of resisting hydraulic rods, a plurality of resisting plates are arranged below the plurality of mounting rods, and also includes a force applying mechanism and a limiting mechanism, the force applying mechanism is used to respectively install the plurality of resisting plates below the plurality of mounting rods and apply a force to the plurality of resisting plates to keep them in place, and the limiting mechanism is used to limit the position of the baffle to above the first bracket.

[0006] Furthermore, the force-applying mechanism includes a plurality of force-applying plates respectively slidably inserted into the surfaces of the plurality of mounting rods, a plurality of resistance plates respectively fixedly installed on the surfaces of the plurality of force-applying plates, a plurality of springs are slidably sleeved on the surfaces of the plurality of force-applying plates, one end of the plurality of springs are respectively fixedly installed on the surfaces of the plurality of force-applying plates, and the other ends of the plurality of springs are respectively fixedly installed on the surfaces of the plurality of mounting rods.

[0007] Furthermore, an adjustment plate is rotatably mounted on the surface of the second bracket, and also includes an angle adjustment mechanism, wherein the angle adjustment mechanism is used to adjust the inclination angle of the adjustment plate.

[0008] Furthermore, the angle adjustment mechanism includes an adjustment hydraulic rod and an empty tube rotatably mounted on the surface of the second bracket, the other end of the empty tube is slidably plugged with an insert tube, and the other ends of the adjustment hydraulic rod and the insert tube are both rotatably mounted on the surface of the adjustment plate.

[0009] Furthermore, an escalator is fixedly mounted on the surface of the second bracket.

[0010] Furthermore, the limiting mechanism includes a limiting block fixedly installed on the top of the first bracket, a slot is opened on the surface of the baffle, the limiting block is slidably inserted into the inner wall of the slot, a plurality of external threaded tubes are fixedly installed on the surface of the limiting block, and the surfaces of the plurality of external threaded tubes are threadedly sleeved with internal threaded tubes.

[0011] Furthermore, two bending hydraulic rods are fixedly mounted on the surfaces of the first bracket and the second bracket, and a plurality of the bending hydraulic rods have a resisting head fixedly mounted on one end thereof.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. When the utility model is in use, the user controls half of the resisting hydraulic rods to contract, and pushes the first bracket to move through a plurality of the pushing hydraulic rods, thereby driving the first bracket to move forward, and then controls the resisting hydraulic rod at the bottom of the first bracket to extend and then contact the ground, controls the resisting hydraulic rod at the bottom of the second bracket to contract, and controls a plurality of pushing hydraulic rods to drive the second bracket to move, and so on, so as to realize the staggered driving of the first bracket and the second bracket. In this process, a plurality of resisting plates staggeredly contact the ground. Compared with the traditional method in which only one end of the resisting hydraulic rod contacts the ground, this method makes the overall stability of the device stronger, and fully reflects the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0016] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model from another angle;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of another part of the structure of the utility model.

[0018] Attached figures: 1. first bracket; 2. second bracket; 3. baffle; 4. push hydraulic rod; 5. resisting hydraulic rod; 6. mounting rod; 7. resisting plate; 8. force-applying mechanism; 801. force-applying plate; 802. spring; 9. limiting mechanism; 901. limiting block; 902. slot; 903. externally threaded pipe; 904. internally threaded pipe; 10. adjusting plate; 11. angle adjusting mechanism; 1101. adjusting hydraulic rod; 1102. empty pipe; 1103. inserting pipe; 12. escalator; 13. turning hydraulic rod; 14. resisting head. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0020] This application provides a coal mine excavation support structure, which is mainly used to solve the following problems: Figure 1 At present, when mining coal mines, the tunnel is generally supported by supporting brackets before further excavation. The current supporting brackets can often move by themselves, and the self-movement method is generally to move by supporting hydraulic rods. The contact surface between several supporting hydraulic rods and the ground is often small, which affects the stability of the entire device. The following technical solutions are provided. Figure 1-Figure 4 Make a detailed description:

[0021] A coal mine excavation support structure, comprising: a first bracket 1 and a second bracket 2, wherein a baffle 3 is arranged above the first bracket 1, and a user can realize the disassembly and assembly of the baffle 3 above the first bracket 1 through a limiting mechanism 9, and a plurality of pushing hydraulic rods 4 are rotatably installed on the surface of the first bracket 1, and the other ends of the plurality of pushing hydraulic rods 4 are rotatably installed on the surface of the second bracket 2, and a plurality of resisting hydraulic rods 5 are fixedly installed at the bottom of the first bracket 1 and the second bracket 2, and a user can realize the staggered movement of the first bracket 1 and the second bracket 2 through the plurality of resisting hydraulic rods 5 and the plurality of pushing hydraulic rods 4, and further comprising a plurality of mounting rods 6, wherein the plurality of mounting rods 6 are respectively fixedly installed at one end of the plurality of resisting hydraulic rods 5, and a plurality of resisting plates 7 are arranged below the plurality of mounting rods 6, and further comprising a force applying mechanism 8, which is used to respectively install the plurality of resisting plates 7 below the plurality of mounting rods 6 and apply a force to the plurality of resisting plates 7 to keep them in place, wherein the force applying mechanism 8 The main components are: a plurality of force plates 801 that are slidably inserted into the surfaces of the plurality of mounting rods 6, and a plurality of resistance plates 7 are fixedly installed on the surfaces of the plurality of force plates 801, and a plurality of springs 802 are slidably sleeved on the surfaces of the plurality of force plates 801, and at the same time, one end of the plurality of springs 802 is fixedly installed on the surfaces of the plurality of force plates 801, and the other ends of the plurality of springs 802 are fixedly installed on the surfaces of the plurality of mounting rods 6. When the ground is uneven, the resistance plates 7 are in contact with the ground, which can drive the force plates 801 to slide on the inner walls of the mounting rods 6 to adapt to the uneven ground. The main components of the limiting mechanism 9 are: a limiting block 901 fixedly installed on the top of the first bracket 1. After the user sleeves the slot 902 opened on the surface of the baffle 3 on the surface of the limiting block 901, the user can threadably sleeve a plurality of internal threaded tubes 904 on the surfaces of a plurality of external threaded tubes 903 that are fixedly installed on the surfaces of the limiting block 901, so as to realize the installation of the baffle 3.

[0022] When in use, the user controls half of the resisting hydraulic rods 5 to retract, and pushes the first bracket 1 to move through several pushing hydraulic rods 4, so as to drive the first bracket 1 to move forward, and then controls the resisting hydraulic rod 5 at the bottom of the first bracket 1 to extend and resist on the ground, controls the resisting hydraulic rod 5 at the bottom of the second bracket 2 to retract, and controls several pushing hydraulic rods 4 to drive the second bracket 2 to move, and so on and so forth, so as to realize the staggered driving of the first bracket 1 and the second bracket 2. In this process, several resisting plates 7 staggeredly resist on the ground. Compared with the traditional method in which only one end of the resisting hydraulic rod 5 contacts the ground, this method makes the overall stability of the device stronger, which fully reflects the practicality of the device.

[0023] like Figure 1 , Figure 3As shown, in some embodiments, in order to further optimize the solution, an adjustment plate 10 is rotatably mounted on the surface of the second bracket 2, and the user can control the inclination angle of the adjustment plate 10 through an angle adjustment mechanism 11. The angle adjustment mechanism 11 includes an adjustment hydraulic rod 1101 and an empty tube 1102 rotatably mounted on the surface of the second bracket 2, and the other end of the adjustment hydraulic rod 1101 is rotatably mounted on the surface of the adjustment plate 10, while the other end of the empty tube 1102 is slidably plugged with an insertion tube 1103, and the other end of the insertion tube 1103 is also rotatably mounted on the surface of the adjustment plate 10. Therefore, The user controls the extension and retraction of the hydraulic rod 1101 to control the angle of the adjustment plate 10. During this process, the insert tube 1103 slides on the inner wall of the empty tube 1102 to ensure stability during the adjustment process. A ladder 12 is fixedly installed on the surface of the second bracket 2, and two turning hydraulic rods 13 are fixedly installed on the surfaces of the first bracket 1 and the second bracket 2. In actual operation, several turning hydraulic rods 13 can be controlled to extend and retract separately, and the purpose of steering can be achieved by controlling several contact heads 14 fixedly installed at one end of the turning hydraulic rods 13 to contact the inner wall of the tunnel.

Claims

1. A coal mine excavation support structure, characterized in that: include: A first bracket (1) and a second bracket (2), wherein a baffle (3) is arranged above the first bracket (1), a plurality of pushing hydraulic rods (4) are rotatably mounted on the surface of the first bracket (1), the other ends of the plurality of pushing hydraulic rods (4) are rotatably mounted on the surface of the second bracket (2), a plurality of resisting hydraulic rods (5) are fixedly mounted on the bottom of the first bracket (1) and the second bracket (2), and further comprising a plurality of mounting rods (6), the plurality of mounting rods (6) being respectively fixedly mounted on one end of the plurality of resisting hydraulic rods (5), a plurality of resisting plates (7) being arranged below the plurality of mounting rods (6), and a force applying mechanism (8) and a limiting mechanism (9), wherein the force applying mechanism (8) is used to respectively install the plurality of resisting plates (7) below the plurality of mounting rods (6) and to apply a force to the plurality of resisting plates (7) to keep them in place, and the limiting mechanism (9) is used to limit the position of the baffle (3) to above the first bracket (1).

2. A coal mine excavation support structure according to claim 1, characterized in that: The force-applying mechanism (8) comprises a plurality of force-applying plates (801) respectively slidably inserted into the surfaces of the plurality of mounting rods (6); a plurality of resistance plates (7) respectively fixedly installed on the surfaces of the plurality of force-applying plates (801); a plurality of springs (802) are slidably sleeved on the surfaces of the plurality of force-applying plates (801); one end of the plurality of springs (802) is respectively fixedly installed on the surfaces of the plurality of force-applying plates (801); and the other end of the plurality of springs (802) is respectively fixedly installed on the surfaces of the plurality of mounting rods (6).

3. A coal mine excavation support structure according to claim 1, characterized in that: An adjustment plate (10) is rotatably mounted on the surface of the second bracket (2), and further comprises an angle adjustment mechanism (11), wherein the angle adjustment mechanism (11) is used to adjust the inclination angle of the adjustment plate (10).

4. A coal mine excavation support structure according to claim 3, characterized in that: The angle adjustment mechanism (11) comprises an adjustment hydraulic rod (1101) and a hollow tube (1102) rotatably mounted on the surface of the second bracket (2); the other end of the hollow tube (1102) is slidably plugged with an insertion tube (1103); the other ends of the adjustment hydraulic rod (1101) and the insertion tube (1103) are both rotatably mounted on the surface of the adjustment plate (10).

5. A coal mine excavation support structure according to claim 1, characterized in that: An escalator (12) is fixedly mounted on the surface of the second bracket (2).

6. A coal mine excavation support structure according to claim 1, characterized in that: The limiting mechanism (9) comprises a limiting block (901) fixedly mounted on the top of the first bracket (1); a slot (902) is provided on the surface of the baffle (3); the limiting block (901) is slidably inserted into the inner wall of the slot (902); a plurality of externally threaded tubes (903) are fixedly mounted on the surface of the limiting block (901); and the surfaces of the plurality of externally threaded tubes (903) are all threadedly sleeved with internally threaded tubes (904).

7. A coal mine excavation support structure according to claim 1, characterized in that: Two bending hydraulic rods (13) are fixedly mounted on the surfaces of the first bracket (1) and the second bracket (2), and a contact head (14) is fixedly mounted on one end of a plurality of the bending hydraulic rods (13).

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