A reinforced support coal mine tunneling support

Abstract

The utility model relates to the coal mine tunneling technical field especially is a kind of coal mine tunneling support of reinforcing support, including bottom plate, the four corners of bottom plate top are all fixedly connected with support sleeve, the inside of four support sleeve is all provided with support sleeve pole, the top of four support sleeve pole is all extended to the outside of support sleeve, the top of four support sleeve pole is respectively fixedly connected with the four corners of support guard plate bottom, the inside of support guard plate is provided with the reinforcing support component for reinforcing support guard plate, the outside of support guard plate is provided with the buffer component for the buffer of support guard plate, both sides support sleeve between are all provided with two multistage hydraulic cylinders, the bottom of four multistage hydraulic cylinders is all fixedly connected with the top of bottom plate, improve the stability of support guard plate, significantly enhance the load capacity and deformation resistance of support guard plate top.

Description

Technical Field

[0001] This utility model relates to the field of coal mine tunneling technology, specifically a reinforced and supported coal mine tunneling support. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, it is generally chosen to excavate tunnels underground to mine coal. This is called an underground coal mine. In coal mine tunneling projects, the top surface of the tunnel needs to be supported. Therefore, support devices are needed to support the top surface of the tunnel.

[0003] The utility model patent application publication number CN218716910U discloses a coal mine tunneling support device, which has a support and protective roof that is easy to install and can effectively dampen vibrations through rubber pads.

[0004] The above solution uses rubber pads for cushioning, but the cushioning effect is limited. After long-term use, the rubber pads are prone to aging, affecting the cushioning effect. In addition, the support plate only has support on the two sides at the bottom, and the top lacks sufficient support, resulting in insufficient stability and easy deformation after long-term use. Utility Model Content

[0005] The purpose of this invention is to provide a reinforced support for coal mine tunneling to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A reinforced support for coal mine tunneling includes a base plate. Support sleeves are fixedly connected to the four corners of the top of the base plate. Support rods are installed inside each of the four support sleeves, with the top ends of each rod extending to the outside of the sleeve. A support guard plate is installed above the four support rods. The top ends of the four support rods are fixedly connected to the four corners of the bottom of the support guard plate. A reinforcing support assembly for reinforcing the support guard plate is installed on the inner side of the support guard plate, and a buffer assembly for cushioning the support guard plate is installed on the outer side. Two multi-stage hydraulic cylinders are installed between the two support sleeves. The bottoms of the four multi-stage hydraulic cylinders are fixedly connected to the top of the base plate, and the top ends of the four multi-stage hydraulic cylinders are fixedly connected to the bottom of the support guard plate.

[0008] As a preferred embodiment of this utility model, the reinforcing support assembly includes two connecting rods symmetrically arranged on the inner side of the support guard plate. The ends of the two connecting rods that are far apart from each other are respectively fixedly connected to the inner walls of the two sides of the support guard plate, and a connecting block is provided between the two connecting rods.

[0009] As a preferred embodiment of this utility model, the ends of the two connecting rods that are close to each other are fixedly connected to the outer walls of the two sides of the connecting block, a support rod runs through the inside of the connecting block, the outer wall of the support rod is slidably connected to the inner wall of the connecting block, and an arc-shaped reinforcing plate is fixedly connected to the top of the support rod.

[0010] As a preferred embodiment of this utility model, the top of the arc-shaped reinforcing plate is in close contact with the middle of the inner wall of the support guard plate, a spring is sleeved on the outer wall of the bottom end of the support rod, movable sleeves are sleeved on the surface of the two connecting rods, the inner walls of the two movable sleeves are slidably connected to the surface of the two connecting rods respectively, and the top of the two movable sleeves are rotatably connected to a hydraulic support rod through a bearing seat.

[0011] Through the above technical solution, the setting of the arc-shaped reinforcing plate and hydraulic support rod increases the supporting force at the top of the support plate, improves the stability of the support plate, and significantly enhances the load-bearing capacity and deformation resistance of the top of the support plate.

[0012] As a preferred embodiment of this utility model, the two hydraulic support rods are arranged symmetrically on an axis. The ends of the two hydraulic support rods away from the movable sleeve block are in contact with the inner wall of the support guard plate. The outer walls of the two hydraulic support rods are rotatably connected to connecting shafts via pins. The ends of the two connecting shafts away from the hydraulic support rods are rotatably connected to the outer walls of the two sides of the support rods, respectively.

[0013] As a preferred embodiment of this utility model, the buffer assembly includes three lower arc-shaped magnetic sheets equidistantly arranged on the outer wall of the supporting guard plate. An upper arc-shaped magnetic sheet is arranged above each of the three lower arc-shaped magnetic sheets, and buffer airbags are arranged on both sides between the three lower arc-shaped magnetic sheets and the three upper arc-shaped magnetic sheets.

[0014] Through the above technical solution, the arc-shaped magnetic sheet and the lower arc-shaped magnetic sheet are connected by a buffer airbag to achieve the purpose of buffering the impact force.

[0015] As a preferred embodiment of this utility model, the bottom of each of the three lower arc-shaped magnetic sheets is fixedly connected to the outer wall of the support plate. The sides of the lower arc-shaped magnetic sheets and the upper arc-shaped magnetic sheets opposite each other are configured to have the same pole. The two ends of the buffer airbags are fixedly connected to the sides of the lower arc-shaped magnetic sheets and the upper arc-shaped magnetic sheets respectively. All the buffer airbags are configured in the same way.

[0016] Through the above technical solution, the opposite sides of the upper arc-shaped magnetic sheet and the lower arc-shaped magnetic sheet are set to have the same pole. Due to the principle of like poles repelling each other, there is a repulsive force between the upper arc-shaped magnetic sheet and the lower arc-shaped magnetic sheet, which effectively improves the buffering effect of the buffer assembly.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the upper arc-shaped magnetic sheet and the lower arc-shaped magnetic sheet are connected by a buffer airbag to achieve the purpose of buffering the impact force. The opposite sides of the upper arc-shaped magnetic sheet and the lower arc-shaped magnetic sheet are set to the same pole. Due to the principle of like poles repelling each other, there is a repulsive force between the upper arc-shaped magnetic sheet and the lower arc-shaped magnetic sheet, which effectively improves the buffering effect of the buffer assembly.

[0019] 2. In this utility model, the setting of the arc-shaped reinforcing plate and the hydraulic support rod increases the supporting force at the top of the support plate, improves the stability of the support plate, and significantly enhances the load-bearing capacity and deformation resistance of the top of the support plate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the reinforcement support component of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the buffer component of this utility model.

[0024] In the diagram: 1. Base plate; 2. Support sleeve; 3. Support rod; 4. Support guard plate; 5. Reinforced support assembly; 6. Buffer assembly; 7. Multi-stage hydraulic cylinder; 501. Connecting rod; 502. Connecting block; 503. Support rod; 504. Arc-shaped reinforcing plate; 505. Spring; 506. Moving sleeve block; 507. Hydraulic support rod; 508. Connecting shaft; 601. Lower arc-shaped magnetic sheet; 602. Upper arc-shaped magnetic sheet; 603. Buffer airbag. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0027] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0028] A reinforced support for coal mine tunneling includes a base plate 1. Support sleeves 2 are fixedly connected to the four corners of the top of the base plate 1. Support rods 3 are provided inside the four support sleeves 2. The top ends of the four support rods 3 extend to the outside of the support sleeves 2. Support plates 4 are provided above the four support rods 3. The top ends of the four support rods 3 are fixedly connected to the four corners of the bottom of the support plates 4. Reinforcement support components 5 for reinforcing the support plates 4 are provided on the inner side of the support plates 4. Buffer components 6 for buffering the support plates 4 are provided on the outer side of the support plates 4. Two multi-stage hydraulic cylinders 7 are provided between the two support sleeves 2. The bottoms of the four multi-stage hydraulic cylinders 7 are fixedly connected to the top of the base plate 1, and the top ends of the four multi-stage hydraulic cylinders 7 are fixedly connected to the bottom of the support plates 4.

[0029] The reinforcing support assembly 5 includes two connecting rods 501 symmetrically arranged inside the support guard plate 4. The ends of the two connecting rods 501 that are far apart from each other are fixedly connected to the inner walls of the two sides of the support guard plate 4. A connecting block 502 is provided between the two connecting rods 501. The ends of the two connecting rods 501 that are close to each other are fixedly connected to the outer walls of the two sides of the connecting block 502. A support rod 503 passes through the inside of the connecting block 502. The outer wall of the support rod 503 is slidably connected to the inner wall of the connecting block 502. An arc-shaped reinforcing plate 504 is fixedly connected to the top of the support rod 503.

[0030] The top of the arc-shaped reinforcing plate 504 is tightly attached to the middle of the inner wall of the support guard plate 4. A spring 505 is sleeved on the outer wall of the bottom end of the support rod 503. Movable sleeves 506 are sleeved on the surface of each of the two connecting rods 501. The inner walls of the two movable sleeves 506 are slidably connected to the surfaces of the two connecting rods 501, respectively. The tops of the two movable sleeves 506 are rotatably connected to hydraulic support rods 507 through bearing seats. The two hydraulic support rods 507 are axially symmetrically arranged. The ends of the two hydraulic support rods 507 away from the movable sleeves 506 are both connected to the support guard plate. The inner walls of the two hydraulic support rods 507 are in contact with each other. The outer walls of the two hydraulic support rods 507 are rotatably connected to the connecting shafts 508 by pins. The ends of the two connecting shafts 508 away from the hydraulic support rods 507 are rotatably connected to the outer walls of the two sides of the support rods 503 respectively. When the support plate 4 is subjected to top pressure, the arc-shaped reinforcing plate 504 supports the middle part of the support plate 4, while the hydraulic support rods 507 support the inner wall of the support plate 4, which improves the stability of the support plate 4 and significantly enhances the load-bearing capacity and deformation resistance of the top of the support plate 4.

[0031] The buffer assembly 6 includes three lower arc-shaped magnetic sheets 601 that are equidistantly arranged on the outer wall of the support plate 4. Each of the three lower arc-shaped magnetic sheets 601 has an upper arc-shaped magnetic sheet 602 above it. Buffer airbags 603 are arranged on both sides between the three lower arc-shaped magnetic sheets 601 and the three upper arc-shaped magnetic sheets 602. When the support plate 4 is subjected to an impact force, the buffer airbags 603 are compressed to achieve the purpose of buffering the impact force.

[0032] The bottoms of the three lower arc-shaped magnetic sheets 601 are all fixedly connected to the outer wall of the support plate 4. The lower arc-shaped magnetic sheets 601 and the upper arc-shaped magnetic sheets 602 are set to be of the same pole on the opposite side. The two ends of the buffer airbags 603 are fixedly connected to the opposite side of the lower arc-shaped magnetic sheets 601 and the upper arc-shaped magnetic sheets 602, respectively. The buffer airbags 603 are all set in the same way. The upper arc-shaped magnetic sheets 602 and the lower arc-shaped magnetic sheets 601 repel each other, which further improves the buffering performance of the buffer assembly 6.

[0033] When the support plate 4 is subjected to an impact force, the buffer airbag 603 is compressed to achieve the purpose of buffering the impact force. The upper arc-shaped magnetic sheet 602 and the lower arc-shaped magnetic sheet 601 repel each other due to the principle of like poles repulsion, which further improves the buffering performance of the buffer assembly 6.

[0034] In this embodiment, when the support plate 4 is subjected to top pressure, the arc-shaped reinforcing plate 504 supports the middle part of the support plate 4, while the hydraulic support rod 507 supports the inner wall of the support plate 4, which improves the stability of the support plate 4 and significantly enhances the load-bearing capacity and deformation resistance of the top of the support plate 4.

[0035] The working process of this utility model is as follows: During use, the multi-stage hydraulic cylinder 7 at the bottom of the support plate 4 pushes the support plate 4 upward until it is in close contact with the top surface of the coal mine tunnel, thus supporting the tunnel top. The arc-shaped reinforcing plate 504 and hydraulic support rod 507 in the reinforced support assembly 5 increase the supporting force at the top of the support plate 4. When the support plate 4 is subjected to top pressure, the arc-shaped reinforcing plate 504 supports the middle of the support plate 4, while the hydraulic support rod 507 supports the inner wall of the support plate 4, improving the stability of the support plate 4 and significantly enhancing its strength. The support plate 4 has a strong load-bearing capacity and resistance to deformation. The upper arc-shaped magnetic sheet 602 and the lower arc-shaped magnetic sheet 601 in the buffer assembly 6 are set to have the same pole on opposite sides. Due to the principle of like poles repulsion, there is a repulsive force between the upper arc-shaped magnetic sheet 602 and the lower arc-shaped magnetic sheet 601. When the support plate 4 is subjected to impact force, the buffer airbag 603 is compressed to achieve the purpose of buffering the impact force. The upper arc-shaped magnetic sheet 602 and the lower arc-shaped magnetic sheet 601 repel each other, which further improves the buffering performance of the buffer assembly 6 and effectively improves the buffering effect of the buffer assembly 6, thereby enhancing the safety performance of the coal mine tunneling support.

[0036] The multi-stage hydraulic cylinder 7 and hydraulic support rod 507 used in this utility model are both existing known electrical devices, and both can be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the multi-stage hydraulic cylinder 7 and hydraulic support rod 507 will not be described in detail here.

[0037] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced support for coal mine tunneling, comprising a base plate (1), characterized in that: Support sleeves (2) are fixedly connected to the four corners of the top of the base plate (1). Support rods (3) are provided inside the four support sleeves (2). The tops of the four support rods (3) extend to the outside of the support sleeves (2). A support guard plate (4) is provided above the four support rods (3). The tops of the four support rods (3) are fixedly connected to the four corners of the bottom of the support guard plate (4). A reinforcement support assembly (5) for reinforcing the support guard plate (4) is provided on the inner side of the support guard plate (4). A buffer assembly (6) for buffering the support guard plate (4) is provided on the outer side of the support guard plate (4). Two multi-stage hydraulic cylinders (7) are provided between the two support sleeves (2). The bottoms of the four multi-stage hydraulic cylinders (7) are fixedly connected to the top of the base plate (1). The tops of the four multi-stage hydraulic cylinders (7) are fixedly connected to the bottom of the support guard plate (4).

2. The reinforced support for coal mine tunneling according to claim 1, characterized in that: The reinforcement support assembly (5) includes two connecting rods (501) symmetrically arranged inside the support guard plate (4). The ends of the two connecting rods (501) that are far apart from each other are fixedly connected to the inner walls of the two sides of the support guard plate (4). A connecting block (502) is provided between the two connecting rods (501).

3. A reinforced support for coal mine tunneling according to claim 2, characterized in that: The two connecting rods (501) are fixedly connected at their close ends to the outer walls of the two sides of the connecting block (502). A support rod (503) runs through the interior of the connecting block (502). The outer wall of the support rod (503) is slidably connected to the inner wall of the connecting block (502). An arc-shaped reinforcing plate (504) is fixedly connected to the top of the support rod (503).

4. A reinforced support for coal mine tunneling according to claim 3, characterized in that: The top of the arc-shaped reinforcing plate (504) is in close contact with the middle of the inner wall of the support guard plate (4). A spring (505) is sleeved on the outer wall of the bottom end of the support rod (503). A movable sleeve block (506) is sleeved on the surface of each of the two connecting rods (501). The inner walls of the two movable sleeve blocks (506) are slidably connected to the surfaces of the two connecting rods (501). The tops of the two movable sleeve blocks (506) are rotatably connected to a hydraulic support rod (507) through a bearing seat.

5. A reinforced support for coal mine tunneling according to claim 4, characterized in that: The two hydraulic support rods (507) are arranged symmetrically. The ends of the two hydraulic support rods (507) away from the moving sleeve (506) are in contact with the inner wall of the support guard plate (4). The outer walls of the two hydraulic support rods (507) are rotatably connected to the connecting shafts (508) by pins. The ends of the two connecting shafts (508) away from the hydraulic support rods (507) are rotatably connected to the outer walls of the two sides of the support rod (503).

6. A reinforced support for coal mine tunneling according to claim 1, characterized in that: The buffer assembly (6) includes three lower arc-shaped magnetic sheets (601) that are equidistantly arranged on the outer wall of the support plate (4). Each of the three lower arc-shaped magnetic sheets (601) has an upper arc-shaped magnetic sheet (602) above it. Buffer airbags (603) are provided on both sides between the three lower arc-shaped magnetic sheets (601) and the three upper arc-shaped magnetic sheets (602).

7. A reinforced support for coal mine tunneling according to claim 6, characterized in that: The bottoms of the three lower arc-shaped magnetic sheets (601) are all fixedly connected to the outer wall of the support plate (4). The lower arc-shaped magnetic sheets (601) and the upper arc-shaped magnetic sheets (602) are set to the same pole on the opposite side. The two ends of the buffer airbag (603) are fixedly connected to the opposite side of the lower arc-shaped magnetic sheets (601) and the upper arc-shaped magnetic sheets (602), respectively. All the buffer airbags (603) are set in the same way.

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