Tunneling shield device applied to coal mining process

Abstract

The utility model relates to a tunneling shield device applied in the coal mining process, which comprises a top beam, a base and a hydraulic component, the hydraulic component is arranged between the top beam and the base, a first groove is arranged at the top of the top beam, sliding chutes are arranged on two side walls of the first groove, the sliding chutes extend along the length direction of the top beam, and the hydraulic component is arranged in the first groove. A pressing roller is transversely arranged between the two sliding grooves in a penetrating mode, and driving assemblies used for pushing the pressing roller to move in the length direction of the sliding grooves are installed in the two sliding grooves. The utility model aims to provide the tunneling shield device applied to the coal mining process to solve the problems that the surface of a coal mine tunnel formed by excavation in the prior art is always uneven, and when the top of the coal mine tunnel is supported by a top beam, the contact area between the top beam and the coal mine tunnel is small, and the coal mining efficiency is low. And therefore, the supporting and shielding effects of the tunneling and shielding device are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a tunneling shielding device used in the coal mining process. Background Art

[0002] When a tunnel boring machine is excavating a coal mine, it is necessary to take protective measures for the coal mine tunnels formed during the excavation process to avoid landslide accidents during the mining process that may cause casualties.

[0003] The existing tunneling shielding device includes a base and a top beam. A hydraulic component is installed between the base and the top beam. The hydraulic component pushes the top beam to move to support and shield the coal mine tunnel to ensure the safety of coal mining operations.

[0004] However, the surface of the coal mine tunnel formed by excavation is often uneven. When the top beam is used to support the top of the coal mine tunnel, the contact area between the top beam and the coal mine tunnel is small, thereby reducing the supporting and shielding effect of the excavation shielding device. Utility Model Content

[0005] In view of this, the purpose of the present utility model is to provide an excavation shielding device used in the coal mining process, so as to solve the problem that the surface of the coal mine tunnel formed by excavation in the prior art is often uneven, and when the top of the coal mine tunnel is supported by the top beam, the contact area between the top beam and the coal mine tunnel is small, thereby reducing the supporting and shielding effect of the excavation shielding device.

[0006] The utility model is achieved through the following technical solutions:

[0007] A tunneling and shielding device used in coal mining includes a top beam, a base and a hydraulic component. The hydraulic component is installed between the top beam and the base. A first groove is provided on the top of the top beam. Slide grooves are provided on both side walls of the first groove. The slide grooves extend along the length direction of the top beam. A pressure roller is horizontally provided between the two slide grooves. A driving component for pushing the pressure roller to move along the length direction of the slide groove is installed in the two slide grooves.

[0008] Furthermore, the two driving components each include a first hydraulic cylinder fixedly installed at one end of the corresponding slide groove, the output ends of the two first hydraulic cylinders are fixedly connected to a first slider, the two first sliders are respectively against the side walls of the two ends of the pressure roller, and the ends of the two slide grooves away from the first hydraulic cylinder are each installed with an elastic support component, and the two elastic support components are respectively against the side walls of the two ends of the pressure roller.

[0009] Furthermore, the two elastic support assemblies each include a spring fixedly installed in the corresponding slide groove at one end away from the first hydraulic cylinder, and the two springs are fixedly connected to a second slider at one end close to the pressure roller, and the two second sliders are respectively abutted against the side walls of the pressure roller at both ends, the two first hydraulic cylinders are in a compressed state, and the two springs are in a naturally extended state.

[0010] Furthermore, a vertical notch is provided on the side walls of the two chutes, a second hydraulic cylinder is installed in the notch, and an output end of the second hydraulic cylinder is fixedly connected to a connecting plate, the length of the connecting plate being greater than the diameter of the pressure roller.

[0011] Furthermore, a second groove with an opening area larger than that of the first groove is provided on the top of the top beam, and two slides are slidably connected in the second groove. The top surfaces of the two slides are flush with the top surface of the top beam, and the second groove can be covered when the two slides slide toward each other. The top beam is equipped with a translation assembly, which is used to adjust the distance between the two slides.

[0012] Furthermore, the translation assembly includes a motor mounted on the top beam, a gear fixedly connected to the output shaft of the motor, two racks meshed on the gear, both of the racks are slidably connected to the top beam, and the two racks are respectively fixedly connected to the two skateboards.

[0013] Furthermore, the hydraulic assembly includes two third hydraulic cylinders, the bottoms of the two third hydraulic cylinders are fixedly connected to the base, and the tops are connected to the top beam.

[0014] Furthermore, a connecting seat is hinged on the base, a connecting beam is hinged on the connecting seat, the connecting beam is hinged to the top beam, a fourth hydraulic cylinder is hinged on the connecting beam, and the end of the fourth hydraulic cylinder away from the connecting beam is hinged to the top beam.

[0015] Furthermore, a support plate is hinged on the top beam, and an angle adjustment component is installed between the support plate and the top beam, and the angle adjustment component is used to adjust the angle between the top beam and the support plate.

[0016] Furthermore, the angle adjustment assembly includes a fifth hydraulic cylinder, and both ends of the fifth hydraulic cylinder are hinged to the bottom of the top beam and the bottom of the support plate respectively.

[0017] The beneficial effects of the present invention are:

[0018] This tunneling and shielding device, used in coal mining operations, moves the base to a set position in the coal mine tunnel and raises the top beam via a hydraulic assembly, bringing it into contact with the tunnel's roof. A drive assembly propels the pressure rollers along the length of the two chutes, where they rub against the tunnel's roof, squeezing and smoothing it. Compared to existing technologies, the tunnel's surface is made relatively smooth by the friction of the pressure rollers. When the top beam supports the tunnel's roof, the contact area between the top beam and the tunnel is increased, improving the tunnel's support and shielding effectiveness.

[0019] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional Figure 1 ;

[0021] Figure 2 The three-dimensional Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the local structure of the utility model Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the local structure of the utility model Figure 2 ;

[0024] Figure 5 For this utility model Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0025] Figure 6 This is a schematic structural diagram of the top beam of the utility model;

[0026] Figure 7 This is a schematic diagram of the connection between the second hydraulic cylinder and the connecting plate of the utility model.

[0027] In the picture:

[0028] 1. Top beam; 2. Base; 3. First groove; 4. Slide; 5. Pressure roller; 6. First hydraulic cylinder; 7. First slider; 8. Spring; 9. Second slider; 10. Notch; 11. Second hydraulic cylinder; 12. Connecting plate; 13. Second groove; 14. Slide plate; 15. Motor; 16. Gear; 17. Rack; 18. Third hydraulic cylinder; 19. Connecting seat; 20. Connecting beam; 21. Fourth hydraulic cylinder; 22. Support plate; 23. Fifth hydraulic cylinder. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] In the above description of the present invention, it should be noted that the terms "one side" and "the other side" and the like indicate positions or locations based on the positions or locations shown in the accompanying drawings, or the positions or locations in which the product of the present invention is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0033] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted.

[0034] See also Figure 1-7The utility model provides a technical solution: a tunneling and shielding device used in the coal mining process, comprising a top beam 1, a base 2 and a hydraulic component, the hydraulic component being installed between the top beam 1 and the base 2, a first groove 3 being opened on the top of the top beam 1, and a slide groove 4 being opened on both side walls of the first groove 3, the slide groove 4 extending along the length direction of the top beam 1, a connecting shaft being horizontally passed through the two slide grooves 4, a pressure roller 5 being fixedly connected to the connecting shaft, and a driving component for pushing the pressure roller 5 to move along the length direction of the slide groove 4 being installed in the two slide grooves 4.

[0035] Working principle and usage:

[0036] Step 1: Move the base 2 to the set position of the coal mine tunnel, and raise the top beam 1 through the hydraulic assembly so that it contacts the top of the coal mine tunnel.

[0037] Step 2: The driving assembly pushes the pressing roller 5 to move along the length direction of the two chutes 4, and the pressing roller 5 rubs against the top of the coal mine roadway, so that the top of the coal mine roadway is squeezed and flattened.

[0038] Compared with the existing technology, the surface of the coal mine tunnel is relatively smoothed by the friction of the pressure roller 5. When the top of the coal mine tunnel is supported by the top beam 1, the contact area between the top beam 1 and the coal mine tunnel is increased, thereby improving the supporting and shielding effect of the coal mine tunnel.

[0039] In this embodiment: the two driving components each include a first hydraulic cylinder 6 fixedly installed at one end of the corresponding slide 4, the output ends of the two first hydraulic cylinders 6 are fixedly connected to a first slider 7, the two first sliders 7 are respectively against the side walls of the two ends of the pressure roller 5, and the ends of the two slides 4 away from the first hydraulic cylinder 6 are each installed with an elastic support component, and the two elastic support components are respectively against the side walls of the two ends of the pressure roller 5.

[0040] In this solution: the first hydraulic cylinder 6 is connected to a controller, and the controller controls the hydraulic valve switch of the first hydraulic cylinder 6 to extend its output end, and the first slider 7 pushes the pressure roller 5 to move along the length direction of the two chutes 4, and the elastic support component is compressed. The controller controls the hydraulic valve switch of the first hydraulic cylinder 6 to shrink its output end, and the elastic support component returns to a naturally extended state without being subjected to thrust. The pressure roller 5 is reset along the length direction of the two chutes 4 under the thrust of the elastic support component, and the pressure roller 5 repeatedly rubs against the top of the coal mine laneway, so that the top of the coal mine laneway is squeezed and flattened.

[0041] In this embodiment: the two elastic support components each include a spring 8 fixedly installed in the corresponding slide groove 4 at one end away from the first hydraulic cylinder 6, and the two springs 8 are fixedly connected to the second slider 9 at one end close to the pressure roller 5. The two second sliders 9 are respectively against the side walls of the pressure roller 5 at both ends. The two first hydraulic cylinders 6 are in a compressed state, and the two springs 8 are in a naturally extended state.

[0042] In this solution: the hydraulic valve switch of the first hydraulic cylinder 6 is controlled by the controller to extend its output end, the first slider 7 pushes the pressure roller 5 to move along the length direction of the two chutes 4, the spring 8 is compressed, and the hydraulic valve switch of the first hydraulic cylinder 6 is controlled by the controller to shrink its output end. The spring 8 is not subjected to the thrust and returns to the natural extension state. The pressure roller 5 is reset along the length direction of the two chutes 4 under the thrust of the spring 8 and the second slider 9. The pressure roller 5 repeatedly rubs against the top of the coal mine roadway, so that the top of the coal mine roadway is squeezed and flattened.

[0043] In this embodiment, a vertical notch 10 is provided on the side walls of the two chutes 4 , a second hydraulic cylinder 11 is installed in the notch 10 , and a connecting plate 12 is fixedly connected to the output end of the second hydraulic cylinder 11 , and the length of the connecting plate 12 is greater than the diameter of the pressure roller 5 .

[0044] In this solution, a vertical notch 10 is formed in the sidewalls of the two chutes 4, and a second hydraulic cylinder 11 is installed within the notch 10. A connecting plate 12 is fixed to the output end of the second hydraulic cylinder 11, and the length of the connecting plate 12 is greater than the diameter of the pressure roller 5. The second hydraulic cylinder 11 is connected to a controller. The controller controls the hydraulic valve of the second hydraulic cylinder 11 to extend its output end, aligning the top surface of the connecting plate 12 with the bottom sidewall of the chutes 4, allowing the pressure roller 5 to move smoothly along the length of the two chutes 4. The controller controls the hydraulic valve of the second hydraulic cylinder 11 to retract its output end, moving the connecting plate 12 downward, allowing the pressure roller 5 to fall into the notch 10 when passing through it. This increases the contact surface of the top surface of the top beam 1 with the top of the coal mine tunnel.

[0045] In this embodiment: the top of the top beam 1 is also provided with a second groove 13 with an opening area larger than the first groove 3, and two slides 14 are slidably connected in the second groove 13. The top surfaces of the two slides 14 are flush with the top surface of the top beam 1. When the two slides 14 slide toward each other, the second groove 13 can be covered. The top beam 1 is installed with a translation component, which is used to adjust the distance between the two slides 14.

[0046] In this solution: a second groove 13 with an opening area larger than the first groove 3 is opened at the top of the top beam 1, and two slides 14 are slidably connected in the second groove 13. The top surfaces of the two slides 14 are flush with the top surface of the top beam 1. When the two slides 14 slide towards each other and get close to each other, the second groove 13 can be covered. The top beam 1 is equipped with a translation assembly, which is used to adjust the distance between the two slides 14. When the surface of the coal mine roadway is uneven, the two slides 14 are moved in opposite directions by the translation assembly to reveal the second groove 13, and then the top of the coal mine roadway is squeezed and smoothed by the pressure roller 5 through repeated friction with the top of the coal mine roadway. When the top beam 1 supports the coal mine roadway, the two slides 14 are slid towards each other by the translation assembly to cover the second groove 13, so that the two slides 14 fit the top of the coal mine roadway. The two slides 14 are used for protection and to provide a flat support surface.

[0047] In this embodiment: the translation assembly includes a motor 15 installed on the top beam 1, and a gear 16 is fixedly connected to the output shaft of the motor 15. Two racks 17 are engaged with the gear 16. The two racks 17 are both slidably connected to the top beam 1, and the two racks 17 are fixedly connected to the two slides 14 respectively.

[0048] In this embodiment, the translation assembly includes a motor 15 mounted on the top beam 1. A gear 16 is fixedly connected to the output shaft of the motor 15. Two racks 17 engage with the gear 16. Both racks 17 are slidably connected to the top beam 1 and are fixedly connected to the two slides 14. A controller is electrically connected to the motor 15. When the surface of the coal mine roadway is uneven, the controller controls the output shaft of the motor 15 to rotate clockwise, driving the two racks 17 to slide in opposite directions on the top beam 1. This causes the two slides 14 to move in opposite directions, revealing the second groove 13. The roller 5 then repeatedly rubs against the top of the coal mine roadway, squeezing and smoothing the top of the coal mine roadway. When the top beam 1 supports the coal mine roadway, the controller controls the output shaft of the motor 15 to rotate counterclockwise, driving the two racks 17 to slide toward each other on the top beam 1. This causes the two slides 14 to slide toward each other, close together, and cover the second groove 13, so that the two slides 14 are in contact with the top of the coal mine roadway.

[0049] In this embodiment, the hydraulic assembly includes two third hydraulic cylinders 18 , the bottoms of the two third hydraulic cylinders 18 are fixedly connected to the base 2 , and the tops are connected to the top beam 1 .

[0050] In this solution, the hydraulic assembly includes two third hydraulic cylinders 18, each fixedly connected to the base 2 at its bottom and to the top beam 1 at its top. The two third hydraulic cylinders 18 are connected to a controller, which controls the hydraulic valves of the two third hydraulic cylinders 18 to extend and retract their output terminals, adapting to different coal mine roadway heights.

[0051] In this embodiment: a connecting seat 19 is hinged on the base 2, a connecting beam 20 is hinged on the connecting seat 19, the connecting beam 20 is hinged to the top beam 1, a fourth hydraulic cylinder 21 is hinged on the connecting beam 20, and the end of the fourth hydraulic cylinder 21 away from the connecting beam 20 is hinged to the top beam 1.

[0052] In this solution, a connecting seat 19 is hinged on the base 2, a connecting beam 20 is hinged on the connecting seat 19, the connecting beam 20 is hinged to the top beam 1, a fourth hydraulic cylinder 21 is hinged on the connecting beam 20, and the end of the fourth hydraulic cylinder 21 away from the connecting beam 20 is hinged to the top beam 1. The fourth hydraulic cylinder 21 is connected to the controller, and the tops of the two third hydraulic cylinders 18 are hinged to the top beam 1. The controller controls the hydraulic valve switches of the fourth hydraulic cylinder 21 and the two third hydraulic cylinders 18 to extend and retract their output ends, thereby adjusting the angle between the base 2, the connecting seat 19, the connecting beam 20 and the top beam 1 to adapt to coal mine tunnels of different shapes.

[0053] In this embodiment, a support plate 22 is hinged on the top beam 1 , and an angle adjustment component is installed between the support plate 22 and the top beam 1 . The angle adjustment component is used to adjust the angle between the top beam 1 and the support plate 22 .

[0054] In this solution, a support plate 22 is hingedly connected to the top beam 1, and an angle adjustment assembly is installed between the support plate 22 and the top beam 1. The angle adjustment assembly is used to adjust the angle between the top beam 1 and the support plate 22. By adjusting the angle between the top beam 1 and the support plate 22 by the angle adjustment assembly, the support plate 22 provides a certain support effect on the side wall of the coal mine roadway, further adapting to coal mine roadways of different shapes.

[0055] In this embodiment, the angle adjustment assembly includes a fifth hydraulic cylinder 23 , and both ends of the fifth hydraulic cylinder 23 are hinged to the bottom of the top beam 1 and the bottom of the support plate 22 respectively.

[0056] In this solution, the fifth hydraulic cylinder 23 is connected to the controller, and the controller controls the hydraulic valve switch of the fifth hydraulic cylinder 23 to make its output end extend and retract, thereby adjusting the angle between the top beam 1 and the support plate 22.

[0057] In this embodiment, the first hydraulic cylinder 6, the third hydraulic cylinder 18, the fourth hydraulic cylinder 21, and the fifth hydraulic cylinder 23 are of model HSGL10E125 / 80-1000, the second hydraulic cylinder 11 is of model GH-003, the motor 15 is of model HBL-3650-01A, and the controller is of model VT6070iE.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A tunneling shielding device used in a coal mining process, comprising a top beam (1), a base (2) and a hydraulic assembly, wherein the hydraulic assembly is installed between the top beam (1) and the base (2), and is characterized in that: A first groove (3) is provided at the top of the top beam (1), and slide grooves (4) are provided on both side walls of the first groove (3). The slide grooves (4) extend along the length direction of the top beam (1), and a pressure roller (5) is provided transversely between the two slide grooves (4). A driving assembly for pushing the pressure roller (5) to move along the length direction of the slide groove (4) is installed in the two slide grooves (4).

2. The tunneling shielding device used in coal mining according to claim 1 is characterized in that: The two driving assemblies each include a first hydraulic cylinder (6) fixedly mounted at one end of the corresponding chute (4); the output ends of the two first hydraulic cylinders (6) are fixedly connected to a first slider (7); the two first sliders (7) respectively abut against the side walls at both ends of the pressure roller (5); and elastic support assemblies are mounted at one end of the two chute (4) away from the first hydraulic cylinder (6); the two elastic support assemblies respectively abut against the side walls at both ends of the pressure roller (5).

3. The tunneling shielding device used in coal mining according to claim 2 is characterized in that: The two elastic support assemblies each include a spring (8) fixedly mounted in the corresponding slide groove (4) at one end away from the first hydraulic cylinder (6); the two springs (8) are fixedly connected to a second slider (9) at one end close to the pressure roller (5); the two second sliders (9) respectively abut against the side walls at both ends of the pressure roller (5); the two first hydraulic cylinders (6) are in a compressed state, and the two springs (8) are in a naturally extended state.

4. The tunneling shielding device used in coal mining according to claim 1 is characterized in that: A vertical notch (10) is provided on the side walls of the two chutes (4), a second hydraulic cylinder (11) is installed in the notch (10), an output end of the second hydraulic cylinder (11) is fixedly connected to a connecting plate (12), and the length of the connecting plate (12) is greater than the diameter of the pressure roller (5).

5. The tunneling shielding device used in coal mining according to claim 1 is characterized in that: The top of the top beam (1) is also provided with a second groove (13) having an opening area larger than that of the first groove (3); two slide plates (14) are slidably connected in the second groove (13); the top surfaces of the two slide plates (14) are flush with the top surface of the top beam (1); when the two slide plates (14) slide towards each other and come close to each other, the second groove (13) can be covered; the top beam (1) is provided with a translation assembly, which is used to adjust the distance between the two slide plates (14).

6. The tunneling shielding device used in coal mining according to claim 5 is characterized in that: The translation assembly comprises a motor (15) mounted on the top beam (1), a gear (16) fixedly connected to the output shaft of the motor (15), two racks (17) meshed with the gear (16), the two racks (17) both slidably connected to the top beam (1), and the two racks (17) respectively fixedly connected to the two slides (14).

7. The tunneling shielding device used in coal mining according to claim 1 is characterized in that: The hydraulic assembly comprises two third hydraulic cylinders (18), the bottoms of the two third hydraulic cylinders (18) are fixedly connected to the base (2), and the tops are connected to the top beam (1).

8. The tunneling shielding device used in coal mining according to claim 1 is characterized in that: A connecting seat (19) is hinged on the base (2), a connecting beam (20) is hinged on the connecting seat (19), the connecting beam (20) is hinged to the top beam (1), a fourth hydraulic cylinder (21) is hinged on the connecting beam (20), and an end of the fourth hydraulic cylinder (21) away from the connecting beam (20) is hinged to the top beam (1).

9. The tunneling shielding device used in coal mining according to claim 1 is characterized in that: A support plate (22) is hinged on the top beam (1), and an angle adjustment component is installed between the support plate (22) and the top beam (1). The angle adjustment component is used to adjust the angle between the top beam (1) and the support plate (22).

10. The tunneling shielding device used in coal mining according to claim 9, characterized in that: The angle adjustment assembly comprises a fifth hydraulic cylinder (23), and both ends of the fifth hydraulic cylinder (23) are respectively hinged to the bottom of the top beam (1) and the bottom of the support plate (22).

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