A coal mine tunneling support device

Abstract

This utility model discloses a coal mine tunneling support device, belonging to the field of coal mine tunneling support technology. It includes a support assembly, with two lifting components installed on the outer bottom of the support assembly. Multiple rollers are arranged below the two lifting components. Second telescopic rods are arranged on both sides of the two lifting components that are far apart from each other. A support plate is arranged on the side of the second telescopic rod far from the lifting components. This utility model, by setting up a lifting and fixing device, allows workers to adjust the height of the support plate and other structures as needed through the cooperation of a first screw and lifting blocks, thereby better meeting the support needs in different situations. Furthermore, workers can enhance the friction between the device and the ground through the cooperation of a screw and friction rubber plate, thereby reducing the possibility of accidental movement of the device and improving its working capacity.

Description

Technical Field

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

[0002] Coal mines are areas where humans extract coal resources from coal-rich areas, generally divided into underground coal mines and open-pit coal mines. When the coal seam is very close to the surface, the coal is usually extracted by directly stripping away the surface soil layer; this is called an open-pit coal mine. Coal is the most important solid fuel and is a type of combustible organic rock. It is formed by the gradual accumulation of thick layers of lush vegetation that grew over a certain geological era in suitable geological environments, buried underwater or in silt, and undergoing natural coalification over a long geological period.

[0003] Existing coal mine tunneling support devices are inconvenient to adjust the height of support plates and other structures, and are prone to accidental movement, thus reducing the device's working capacity; they are also inconvenient to provide auxiliary support to the left and right sides inside the roadway, thus reducing the device's practicality. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a coal mine tunneling support device, characterized by high working capacity and strong practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a coal mine tunneling support device, comprising a support assembly, two lifting assemblies installed on the outer bottom of the support assembly, multiple rollers arranged below the two lifting assemblies, and second telescopic rods arranged on both sides of the two lifting assemblies that are far apart from each other. A support plate is arranged on the side of the second telescopic rod that is far away from the lifting assemblies. The two lifting assemblies and the multiple rollers are connected by two lifting fixing devices, and the second telescopic rods and the support plate are connected by an auxiliary support device.

[0006] Preferably, the lifting and fixing device includes a base plate, a lifting block, a first lead screw, a connecting frame, and a fixing component. Two lifting components and multiple rollers are connected through two base plates. A connecting frame is fixedly installed on the top of the base plate and between the lifting components and the second telescopic rod. The first lead screw is installed near the center of the connecting frame via a bearing. A lifting block is fixedly connected to one side of the second telescopic rod, outside the first lead screw and inside the connecting frame. A fixing component is installed on the outer side of the base plate.

[0007] Preferably, the lifting and fixing device further includes a first friction rubber ring, which is fixedly installed on the outer side of the first lead screw and at the positions located on the inner side of the connecting frame and on the upper and lower sides of the lifting block.

[0008] Preferably, the fixing assembly includes a lifting frame, a screw, and a friction rubber plate. The lifting frame is provided on the outer side of the base plate, and the screw is installed on the inner side of the lifting frame and located on the inner side of one end of the base plate via a bearing. The friction rubber plate is fixedly connected to the lower part of the lifting frame.

[0009] Preferably, the auxiliary support device includes a connecting frame, a rotating block, a lifting plate, and a second lead screw. The connecting frame is fixedly connected to the second telescopic rod and the support plate. The second lead screw is installed on the top and bottom of the connecting frame through bearings. The rotating block is fixedly connected between the two second lead screws. Lifting plates are provided on the upper and lower sides of the connecting frame and at positions outside the second lead screws.

[0010] Preferably, the auxiliary support device further includes a second friction rubber ring, and the second friction rubber ring is fixedly connected to both the upper and lower sides of the rotating block and to the positions located inside the connecting frame and outside the second lead screw.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a lifting and fixing device, this utility model allows workers to adjust the height of the support plate and other structures when needed through the cooperation of the first screw and lifting block, thereby better meeting the support needs in different situations. In addition, workers can increase the friction between the device and the ground through the cooperation of the screw and friction rubber plate, thereby reducing the possibility of accidental movement of the device and improving the working capacity of the device.

[0013] 2. By setting up an auxiliary support device, this utility model enables workers to provide auxiliary support to the left and right sides of the roadway when needed through the cooperation of the second screw and lifting plate, thereby better meeting the support needs in different situations and improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a three-dimensional sectional view of the present invention;

[0016] Figure 3 This is a three-dimensional sectional view of the lifting and fixing device of this utility model;

[0017] Figure 4 This is a three-dimensional sectional view of the auxiliary support device of this utility model.

[0018] In the diagram: 1. Support assembly; 2. Lifting and fixing device; 21. Base plate; 22. First friction rubber ring; 23. Lifting block; 24. First lead screw; 25. Connecting frame; 26. Fixing assembly; 261. Lifting frame; 262. Screw; 263. Friction rubber plate; 3. Lifting assembly; 4. Second telescopic rod; 5. Roller; 6. Support plate; 7. Auxiliary support device; 71. Connecting frame; 72. Rotating block; 73. Second friction rubber ring; 74. Lifting plate; 75. Second lead screw. Detailed Implementation

[0019] 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. Example 1

[0020] Please see Figure 1-4 The present invention provides the following technical solution: a coal mine tunneling support device, including a support component 1, two lifting components 3 are installed on the bottom outer side of the support component 1, multiple rollers 5 are arranged below the two lifting components 3, and second telescopic rods 4 are arranged on both sides of the two lifting components 3 that are far away from each other. A support plate 6 is arranged on the side of the second telescopic rod 4 that is far away from the lifting components 3. The two lifting components 3 and the multiple rollers 5 are connected by two lifting fixing devices 2, and the second telescopic rod 4 and the support plate 6 are connected by an auxiliary support device 7.

[0021] Specifically, the lifting and fixing device 2 includes a base plate 21, a lifting block 23, a first lead screw 24, a connecting frame 25, and a fixing component 26. The two lifting components 3 and the multiple rollers 5 are connected by the two base plates 21. The connecting frame 25 is fixedly installed on the top of the base plate 21 and between the lifting component 3 and the second telescopic rod 4. The first lead screw 24 is installed near the center of the connecting frame 25 through a bearing. The lifting block 23 is fixedly connected to one side of the second telescopic rod 4 and at the position outside the first lead screw 24 and inside the connecting frame 25. The fixing component 26 is installed on the outer side of the base plate 21.

[0022] By adopting the above technical solution, the staff can adjust the height of the support plate 6 and other structures by means of the cooperation of the first lead screw 24 and the lifting block 23 when needed, so as to better meet the support needs in different situations.

[0023] Specifically, the lifting and fixing device 2 also includes a first friction rubber ring 22, which is fixedly installed on the outer side of the first lead screw 24 and on the inner side of the connecting frame 25 and on the upper and lower sides of the lifting block 23.

[0024] By adopting the above technical solution, the device can enhance the frictional resistance of the first lead screw 24 when it rotates through the two first friction rubber rings 22, thereby reducing the possibility of the first lead screw 24 rotating unexpectedly.

[0025] Specifically, the fixing component 26 includes a lifting frame 261, a screw 262, and a friction rubber plate 263. The lifting frame 261 is provided on the outer side of the base plate 21. The screw 262 is installed on the inner side of the lifting frame 261 and located on the inner side of one end of the base plate 21 via a bearing. The friction rubber plate 263 is fixedly connected to the lower part of the lifting frame 261.

[0026] By adopting the above technical solution, workers can enhance the friction between the device and the ground when needed by using the screw 262 and friction rubber plate 263, thereby reducing the possibility of the device moving unexpectedly.

[0027] In this embodiment, when the device is needed for support work in the tunneling of a coal mine, the worker pushes the device, moving it to the working position via the rollers 5. Then, the worker rotates the screws 262 inside the fixing components 26 of the two lifting and fixing devices 2. The screws 262 are threadedly connected to the base plate 21, and the screws 262 are bearing-connected to the lifting frame 261. The inner side of the lifting frame 261 is in contact with one side of the base plate 21. Therefore, the two screws 262 respectively drive the two lifting frames 261 and the friction rubber plates 263 below them to descend until the two friction rubber plates 263 are in close contact with the ground. Then, the worker rotates the two screws 262 to lower the two lifting frames 261 and the friction rubber plates 263 below them. The first lead screw 24 is threadedly connected to the lifting block 23, and the outer side of the lifting block 23 is in contact with the inner side of the connecting frame 25. Therefore, the two first lead screws 24 drive the two lifting blocks 23 to move, thereby adjusting the height of the two second telescopic rods 4 and the two support plates 6. Then, the two second telescopic rods 4 drive the two support plates 6 to move, so that the two support plates 6 contact the inner walls of both sides of the roadway. Then, the height of the support component 1 is adjusted by the two lifting components 3, so that it contacts the top of the roadway, thereby performing the support work. The first friction rubber ring 22 plays a role in preventing the first lead screw 24 from rotating accidentally. Example 2

[0028] The difference between this embodiment and embodiment 1 is that the auxiliary support device 7 includes a connecting frame 71, a rotating block 72, a lifting plate 74, and a second lead screw 75. The connecting frame 71 is fixedly connected between the second telescopic rod 4 and the support plate 6. The second lead screw 75 is installed on the top and bottom of the connecting frame 71 through bearings. The rotating block 72 is fixedly connected between the two second lead screws 75. The lifting plate 74 is provided on both the upper and lower sides of the connecting frame 71 and at the position outside the second lead screw 75.

[0029] By adopting the above technical solution, workers can use the cooperation of structures such as the second screw 75 and the lifting plate 74 to provide auxiliary support for the left and right sides of the roadway when needed, thereby better meeting the support needs in different situations.

[0030] Specifically, the auxiliary support device 7 also includes a second friction rubber ring 73. The second friction rubber ring 73 is fixedly connected to both the upper and lower sides of the rotating block 72 and to the positions located inside the connecting frame 71 and outside the second lead screw 75.

[0031] By adopting the above technical solution, the device can enhance the frictional resistance of the rotating block 72 during rotation through the second friction rubber ring 73. This reduces the possibility of unexpected rotation of the rotating block 72 and its second lead screw 75.

[0032] In this embodiment, when needed, the operator can rotate the rotating block 72 in the connecting frame 71 of the two auxiliary support devices 7 respectively, thereby overcoming the resistance of each second friction rubber ring 73 and driving each second lead screw 75 to rotate. The second lead screw 75 is threadedly connected to the lifting plate 74, and the lifting plate 74 is in close contact with the support plate 6. Therefore, each second lead screw 75 drives each lifting plate 74 to move, so that part of it is no longer blocked by the support plate 6, thereby performing auxiliary support work.

[0033] The structure and principle of the support assembly 1 (composed of a U-shaped plate, an arc-shaped support plate, a fixed rod, and a lighting lamp), the lifting assembly 3 (composed of a connecting plate, a groove, a first telescopic rod, and a connecting block), the second telescopic rod 4, the roller 5, and the support plate 6 in this utility model have been disclosed in a coal mine tunneling support device disclosed in Chinese patent application number 202323386814.7. Its working principle is as follows: when using this device, the rollers first move the device to the desired position. Then, the extension and retraction of the first telescopic rod moves the connecting block, which in turn moves the U-shaped plate. The U-shaped plate then moves the arc-shaped support plate, adjusting its height so that it contacts the top of the tunnel, forming a support and protection. Finally, the extension and retraction of the second telescopic rod moves the support plate, bringing it into contact with the inner walls of both sides of the tunnel, thus forming another support and protection.

[0034] The working principle and usage process of this utility model are as follows: When the tunnel being excavated in a coal mine requires support using this device, the worker pushes the device, moving it to the working position via the rollers 5. Then, the worker rotates the screws 262 inside the fixing components 26 of the two lifting and fixing devices 2. The screws 262 are threadedly connected to the base plate 21, and the screws 262 are bearing-connected to the lifting frame 261. The inner side of the lifting frame 261 is in contact with one side of the base plate 21. Therefore, the two screws 262 respectively drive the two lifting frames 261 and the friction rubber plates 263 below them to descend until the two friction rubber plates 263 are in close contact with the ground. Then, the worker rotates the two first lead screws 24 respectively. The first lead screws 24 are threadedly connected to the lifting blocks 23, and the outer side of the lifting blocks 23 is in contact with the inner side of the connecting frame 25. Therefore, the two first lead screws 24 respectively drive the two lifting blocks 261 to descend. 3. The height of the two second telescopic rods 4 and the two support plates 6 is adjusted by moving the two second telescopic rods 4, so that the two support plates 6 contact the inner walls of both sides of the roadway. Then, the height of the support component 1 is adjusted by the two lifting components 3 so that it contacts the top of the roadway, thereby performing the support work. The first friction rubber ring 22 plays a role in preventing the first screw 24 from rotating accidentally. When needed, the workers can rotate the rotating block 72 in the connecting frame 71 of the two auxiliary support devices 7 respectively, thereby overcoming the resistance of each second friction rubber ring 73 and driving each second screw 75 to rotate. The second screw 75 is threadedly connected to the lifting plate 74, and the lifting plate 74 is in close contact with the support plate 6. Therefore, each second screw 75 drives each lifting plate 74 to move, so that part of it is no longer blocked by the support plate 6, thereby performing auxiliary support work.

[0035] 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 coal mine tunneling supporting device, comprising a support assembly (1), two lifting assemblies (3) are installed on the bottom outer side of the support assembly (1), a plurality of rollers (5) are arranged below the two lifting assemblies (3), second telescopic rods (4) are arranged on both sides of the two lifting assemblies (3) away from each other, and a supporting plate (6) is arranged on the side of the second telescopic rod (4) away from the lifting assembly (3). The two lifting components (3) are connected to the multiple rollers (5) through two lifting fixing devices (2), and the second telescopic rod (4) is connected to the support plate (6) through an auxiliary support device (7).

2. The coal mine tunneling support device according to claim 1, characterized in that: The lifting and fixing device (2) includes a base plate (21), a lifting block (23), a first lead screw (24), a connecting frame (25), and a fixing component (26). The two lifting components (3) and multiple rollers (5) are connected through the two base plates (21). The connecting frame (25) is fixedly installed above the base plate (21) and between the lifting components (3) and the second telescopic rod (4). The first lead screw (24) is installed near the center of the connecting frame (25) through a bearing. The lifting block (23) is fixedly connected to one side of the second telescopic rod (4) and at the position outside the first lead screw (24) and inside the connecting frame (25). The fixing component (26) is installed near the outer side of the base plate (21).

3. A coal mine tunneling support device according to claim 2, characterized in that: The lifting and fixing device (2) also includes a first friction rubber ring (22). The first friction rubber ring (22) is fixedly installed on the outside of the first screw (24) and on the inside of the connecting frame (25) and on the upper and lower sides of the lifting block (23).

4. A coal mine tunneling support device according to claim 2, characterized in that: The fixing component (26) includes a lifting frame (261), a screw (262) and a friction rubber plate (263). The lifting frame (261) is provided on the outer side of the base plate (21). The screw (262) is installed on the inner side of the lifting frame (261) and at the inner side of one end of the base plate (21) via a bearing. The friction rubber plate (263) is fixedly connected to the lower part of the lifting frame (261).

5. A coal mine tunneling support device according to claim 1, characterized in that: The auxiliary support device (7) includes a connecting frame (71), a rotating block (72), a lifting plate (74), and a second lead screw (75). The connecting frame (71) is fixedly connected between the second telescopic rod (4) and the support plate (6). The second lead screw (75) is installed on the top and bottom of the connecting frame (71) through bearings. The rotating block (72) is fixedly connected between the two second lead screws (75). The lifting plate (74) is provided on the upper and lower sides of the connecting frame (71) and at the position outside the second lead screw (75).

6. A coal mine tunneling support device according to claim 5, characterized in that: The auxiliary support device (7) also includes a second friction rubber ring (73). The second friction rubber ring (73) is fixedly connected to both the upper and lower sides of the rotating block (72) and to the positions located inside the connecting frame (71) and outside the second lead screw (75).

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