A safety supporting device for coal mine tunneling operation

Abstract

The utility model relates to safe supporting device technical field discloses a kind of safe supporting devices for coal mine tunneling operation, including support disc, it is characterized by: the bottom end of the support disc is provided with base, the top of the support disc is provided with contact disc, the top of the support disc is provided with adjusting assembly, the outer wall of the base is provided with quick-change assembly;The adjusting assembly includes fixed block one, the bottom end of the fixed block one is fixedly connected in the top of support disc, the top of the support disc is fixedly connected with fixed block two, the one end of the fixed block one is fixedly connected with slide rail.In the utility model, first, after base is placed on ground stable, starting pusher, pusher will cylinder two upward push, under the rotation adjustment of cylinder one and cylinder two, the angle of contact disc is adjusted synchronously, so that contact disc is attached to different mine wall, the problem that safe supporting device cannot adjust contact disc angle, affect support stability is solved, and the stability of safe supporting device support is improved.

Description

Technical Field

[0001] This utility model relates to the field of safety support device technology, and in particular to a safety support device for coal mine tunneling operations. Background Technology

[0002] In the field of safety support devices, the roof contact performance of these devices has a decisive impact on operational safety and support effectiveness. To achieve precise and reliable roof support in mines, specialized safety support devices are typically required. These devices usually include auxiliary functional modules such as support columns and contact plate mechanisms. Especially under complex geological conditions, with roof undulations and changes in rock strata, the angle adaptability and fit of the contact plate directly affect the stability and safety of the support. Therefore, developing a roof contact plate device with adjustable angle and convenient operation has become an important direction for the technological improvement of coal mine support equipment.

[0003] In existing technologies, safety support devices used in coal mine tunneling operations generally include hydraulic columns, fixed top beams, and foundation bearing structures. Structurally, the device features a rigid contact plate at the top for contacting the mine roof, fixed by welding or bolting; it is also equipped with a buffer layer to alleviate localized pressure concentration. However, in practical use, the contact plate lacks angle adjustment functionality. When encountering inclined roofs, wooden wedges or gravel must be added for filling. Furthermore, both the contact surface and the support structure are rigidly fixed, with no angle adjustment, resulting in poor adaptability and an inability to effectively conform to irregular roofs, severely impacting the safety and reliability of the support.

[0004] However, existing safety support devices still have certain problems in practical applications. During coal mine excavation, the mine surface is uneven, and traditional structures cannot adjust the angle of the contact plate. These problems reduce the stability of the safety support device, necessitating optimization in structural design. Therefore, a safety support device for coal mine tunneling operations is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a safety support device for coal mine tunneling operations, aiming to improve the problem that the contact plate angle of the existing safety support device cannot be adjusted, which affects the stability of the support.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a safety support device for coal mine tunneling operations, comprising a support plate, a base provided at the bottom end of the support plate, a contact plate provided at the top end of the support plate, an adjustment component provided at the top end of the support plate, and a quick-change component provided on the outer wall of the base.

[0007] The adjustment assembly includes a first fixing block, the bottom of which is fixedly connected to the top of a support plate. A second fixing block is fixedly connected to the top of the support plate. A slide rail is fixedly connected to one end of the first fixing block, and the other end of the slide rail is fixedly connected to one end of the second fixing block. A slider is slidably connected to the outer wall of the slide rail. An adjustment column is fixedly connected inside the slider. A support column is rotatably connected to the outer wall of the adjustment column. An extension block is fixedly connected to the top of the support column. A cylinder is rotatably connected inside the extension block. The outer wall of the cylinder is rotatably connected to the inside of a contact plate. A drive assembly is provided at the top of the support plate.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a fixed frame, the bottom end of which is fixedly connected to the top of the support plate. A pusher is fixedly connected to the outer wall of the fixed frame, and a lifting plate is fixedly connected to the output end of the pusher. A cylinder is rotatably connected inside the lifting plate, and the outer wall of the cylinder is rotatably connected inside the support plate.

[0010] As a further description of the above technical solution:

[0011] The quick-change assembly includes a mounting base, which slides internally on the outer wall of the base, and the outer wall of the mounting base is fixedly connected to the bottom end of the mounting base.

[0012] As a further description of the above technical solution:

[0013] The mounting base is slidably connected to a locking pin, and the outer wall of the locking pin slides inside the base.

[0014] As a further description of the above technical solution:

[0015] An extension column is fixedly connected to the outer wall of the mounting base, and a connecting rod is slidably connected inside the extension column.

[0016] As a further description of the above technical solution:

[0017] The extension column is fixedly connected to the outer wall of the extension column with a second protruding column, and the connecting rod is fixedly connected to the outer wall of the connecting rod with a first protruding column.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the connecting rod slides inside the extension column, and the outer wall of the connecting rod slides inside the second protruding column.

[0020] As a further description of the above technical solution:

[0021] A spring is fitted on the outer wall of the connecting rod. One end of the spring is fixedly connected to one end of the protruding post, and the other end of the spring is fixedly connected to one end of the protruding post.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, after the base is placed on the ground and stabilized, the pusher is started. The pusher pushes the second cylinder upward. While it is rising, the angle of the contact plate is adjusted synchronously under the rotation adjustment of the first and second cylinders, so that the contact plate fits against different mine walls, achieving the effect of adjusting the angle of the contact plate. This solves the problem that the safety support device cannot adjust the angle of the contact plate, which affects the stability of the support, and improves the stability of the safety support device.

[0024] 2. In this utility model, firstly, the connecting rod is pulled outward to pull it out of the locking post and compress the spring. Then, the locking post is pulled outward to pull it out of the base. The base is removed and the replacement base is inserted into the mounting base. Then, the locking post is inserted into the base. Under the spring's rebound, the connecting rod is reset and driven into the locking post, thereby fixing the locking post. This achieves the effect of quickly replacing the base, solving the problem that the safety support device cannot quickly replace the base, which affects the maintenance efficiency of the safety support device, and improving the convenience of maintaining the safety support device. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a safety support device for coal mine tunneling operations proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the contact plate of a safety support device for coal mine tunneling operations proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a support column for a safety support device for coal mine tunneling operations proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the support plate of a safety support device for coal mine tunneling operations proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the base of a safety support device for coal mine tunneling operations proposed in this utility model;

[0030] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0031] Figure 7 This is a schematic diagram of the structure of an extension column of a safety support device for coal mine tunneling operations proposed in this utility model.

[0032] Legend:

[0033] 1. Contact plate; 2. Support plate; 3. Base; 4. Fixing block one; 5. Slider; 6. Slide rail; 7. Fixing block two; 8. Adjusting column; 9. Support column; 10. Extension block; 11. Cylinder one; 12. Cylinder two; 13. Lifting plate; 14. Pusher; 15. Fixing frame; 16. Mounting base; 17. Locking column; 18. Extension column; 19. Connecting rod; 20. Protruding column one; 21. Protruding column two; 22. Spring. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 1-3 This utility model provides an embodiment of a safety support device for coal mine tunneling operations, including a support plate 2. The support plate 2 serves as the main load-bearing structure. It is formed by rolling and welding steel plates and the surface is sandblasted and rust-removed. Its load-bearing capacity reaches several tons, which is common knowledge and will not be described in detail here. A base 3 is provided at the bottom of the support plate 2. The base 3 is made of cast iron and has anti-slip textures on the bottom to increase friction with the ground and ensure stable and reliable support. This is existing technology and will not be described in detail here. A contact plate 1 is provided at the top of the support plate 2. The contact plate 1 cooperates with the support plate 2 to perform angle adaptive movement. By rotating and adjusting the cylinder 11 and cylinder 22, it can achieve close contact with the mine wall at different inclination angles to achieve effective support. An adjustment component is provided at the top of the support plate 2 to adjust the angle of the contact plate 1, which improves the stability of the safety support device. A quick-change component is provided on the outer wall of the base 3 for quick replacement of the base 3, which improves the maintenance efficiency of the safety support device.

[0036] The adjustment assembly includes a first fixing block 4, which serves as the mounting base for the slide rail 6. The first fixing block 4 is made of forged steel and is welded to the support plate 2, a fact well-known and will not be elaborated further. The bottom end of the first fixing block 4 is fixedly connected to the top end of the support plate 2. A second fixing block 7 is fixedly connected to the top end of the support plate 2. The slide rail 6 is fixedly connected to one end of the first fixing block 4. The slide rail 6 is made of bearing steel and has undergone surface hardening treatment. It cooperates with the slider 5 to achieve smooth sliding. The other end of the slide rail 6 is fixedly connected to one end of the second fixing block 7. The slider 5 is slidably connected to the outer wall of the slide rail 6, serving as a support for the adjustment column 8. The supporting components include a slider 5 made of cast stainless steel with an internal self-lubricating bushing. An adjusting column 8, made of tempered alloy steel, is fixedly connected inside the slider 5. Both ends of the adjusting column 8 are connected to the slider 5, and its outer wall is connected to the support column 9. This column serves for length adjustment and force transmission; this is existing technology and will not be elaborated further. The support column 9 is rotatably connected to the outer wall of the adjusting column 8. The support column 9, as a supporting mechanism, has a galvanized outer surface for rust prevention and can withstand axial pressure of several tons; this is common knowledge and will not be elaborated further. An extension block 10, made of steel plate, is fixedly connected to the top of the support column 9. The internal machining includes mounting holes for rotatably connecting cylinder 11. Cylinder 11 is rotatably connected inside the extension block 10. Both cylinder 11 and cylinder 12 serve as spherical structures, precision-machined from stainless steel with a polished surface. Their diameters are fitted with the clearance of the holes in the contact plate 1, allowing for free angle adjustment. The outer wall of cylinder 11 is rotatably connected inside the contact plate 1. A drive assembly is located at the top of the support plate 2. The drive assembly includes a fixing frame 15, which serves as a mounting bracket for the pusher 14. The fixing frame 15 is constructed from welded profiles, resulting in a robust structure, which is existing technology. Without going into too much detail, the bottom end of the fixed frame 15 is fixedly connected to the top end of the support plate 2. The outer wall of the fixed frame 15 is fixedly connected to the pusher 14. The pusher 14 serves as the driving force for the lifting mechanism, providing stable support and preventing accidental loosening. This is common knowledge and will not be elaborated on here. The output end of the pusher 14 is fixedly connected to the lifting plate 13. The lifting plate 13 serves as the output end connector and has a rotating groove inside, which rotates in conjunction with the cylinder 12. This is existing technology and will not be elaborated on here. The cylinder 12 is rotatably connected inside the lifting plate 13, and the outer wall of the cylinder 12 is rotatably connected inside the support plate 2.

[0037] Reference Figures 4-7The quick-change assembly includes a mounting base 16, with a base 3 sliding inside the mounting base 16. Through a precise fit between the internal guide groove and the outer wall of the base 3, the base 3 can be quickly aligned and installed, achieving rapid replacement. The mounting base 16 slides within the outer wall of the base 3, and the outer wall of the mounting base 16 is fixedly connected to the bottom end of the mounting base 16. A locking post 17 is slidably connected inside the mounting base 16. The locking post 17, as a key locking component, is made of alloy steel and has undergone heat treatment, with a galvanized surface for rust prevention. It is precisely inserted into the corresponding hole of the base 3 to achieve radial fastening, which is common knowledge and will not be elaborated here. The outer wall of the locking post 17 slides within the base 3. An extension post 18 is fixedly connected to the outer wall of the mounting base 16. The extension post 18 is made of seamless steel pipe, with one end welded to the mounting base 16. It has a precision-machined sliding guide groove inside, which is existing technology. Without going into too much detail here, the extension column 18 is internally connected to a connecting rod 19, which serves as the actuator for unlocking and resetting actions. The connecting rod 19 is precision machined from steel with a polished surface and is used to connect the operating end and the locking mechanism. The outer wall of the extension column 18 is fixedly connected to a second protrusion 21, and the outer wall of the connecting rod 19 is fixedly connected to a first protrusion 20. The first protrusion 20 and the second protrusion 21 together form a fixed support for the spring 22. Both the first protrusion 20 and the second protrusion 21 are made of stainless steel and serve to limit the compression stroke of the spring 22 and provide stable support force. The outer wall of the connecting rod 19 slides inside the extension column 18 and inside the second protrusion 21. The outer wall of the connecting rod 19 is fitted with a spring 22. One end of the spring 22 is fixedly connected to one end of the first protrusion 20, and the other end of the spring 22 is fixedly connected to one end of the second protrusion 21.

[0038] Working principle: When using this safety support device, first place the base 3 on the ground and stabilize it, then start the pusher 14. The pusher 14 pushes the second cylinder 12 upward. The second cylinder 12 drives the support column 9 to continuously expand the angle with the support plate 2. Under the adjustment of the adjusting column 8, the slider 5 slides inward on the outer wall of the slide rail 6. While rising, the angle of the contact plate 1 is adjusted synchronously under the rotation adjustment of the first cylinder 11 and the second cylinder 12, so that the contact plate 1 fits against different mine walls, achieving the effect of adjusting the angle of the contact plate 1.

[0039] When it is necessary to replace the base 3, first pull the connecting rod 19 outward to pull the connecting rod 19 out of the locking post 17 and compress the spring 22, thereby releasing the fixing of the locking post 17 by the connecting rod 19. Then pull the locking post 17 outward to pull the locking post 17 out of the base 3, thereby releasing the fixing of the locking post 17 to the base 3. Remove the base 3 and insert the replacement base 3 into the mounting base 16. Then insert the locking post 17 into the base 3. Under the rebound action of the spring 22, the connecting rod 19 will be reset and driven into the locking post 17, thereby fixing the locking post 17, achieving the effect of quickly replacing the base 3.

Claims

1. A safety support device for coal mine tunneling operations, comprising a support plate (2), characterized in that: The support plate (2) is provided with a base (3) at its bottom end, a contact plate (1) is provided at its top end, an adjustment component is provided at its top end, and a quick-change component is provided on the outer wall of the base (3). The adjustment assembly includes a fixing block (4), the bottom of which is fixedly connected to the top of the support plate (2). The top of the support plate (2) is fixedly connected to a fixing block (7). One end of the fixing block (4) is fixedly connected to a slide rail (6), and the other end of the slide rail (6) is fixedly connected to one end of the fixing block (7). A slider (5) is slidably connected to the outer wall of the slide rail (6). An adjustment column (8) is fixedly connected inside the slider (5). A support column (9) is rotatably connected to the outer wall of the adjustment column (8). An extension block (10) is fixedly connected to the top of the support column (9). A cylinder (11) is rotatably connected inside the extension block (10). The outer wall of the cylinder (11) is rotatably connected to the inside of the contact plate (1). A drive assembly is provided at the top of the support plate (2).

2. The safety support device for coal mine tunneling operations according to claim 1, characterized in that: The drive assembly includes a fixed frame (15), the bottom end of which is fixedly connected to the top of the support plate (2), a pusher (14) is fixedly connected to the outer wall of the fixed frame (15), a lifting plate (13) is fixedly connected to the output end of the pusher (14), a cylinder (12) is rotatably connected inside the lifting plate (13), and the outer wall of the cylinder (12) is rotatably connected inside the support plate (2).

3. A safety support device for coal mine tunneling operations according to claim 2, characterized in that: The quick-change assembly includes a mounting base (16), which slides inside the outer wall of the base (3), and the outer wall of the mounting base (16) is fixedly connected to the bottom end of the mounting base (16).

4. A safety support device for coal mine tunneling operations according to claim 3, characterized in that: The mounting base (16) is slidably connected to a locking post (17), and the outer wall of the locking post (17) slides inside the base (3).

5. A safety support device for coal mine tunneling operations according to claim 4, characterized in that: An extension column (18) is fixedly connected to the outer wall of the mounting base (16), and a connecting rod (19) is slidably connected inside the extension column (18).

6. A safety support device for coal mine tunneling operations according to claim 5, characterized in that: The extension column (18) is fixedly connected to the outer wall of the protruding column two (21), and the connecting rod (19) is fixedly connected to the outer wall of the protruding column one (20).

7. A safety support device for coal mine tunneling operations according to claim 6, characterized in that: The outer wall of the connecting rod (19) slides inside the extension column (18), and the outer wall of the connecting rod (19) slides inside the second protruding column (21).

8. A safety support device for coal mine tunneling operations according to claim 7, characterized in that: A spring (22) is sleeved on the outer wall of the connecting rod (19). One end of the spring (22) is fixedly connected to one end of the first protrusion (20), and the other end of the spring (22) is fixedly connected to one end of the second protrusion (21).

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