Gangue flying prevention side protection device for fully mechanized coal mining face of coal mine

Abstract

The utility model relates to the technical field of coal mining, in particular to a coal mine fully mechanized coal mining face flying waste rock prevention side protection device which comprises a first side protection plate, a second side protection plate is arranged on one side of the first side protection plate, a hydraulic assembly is fixedly installed on the surface of one side of the first side protection plate, and an extension assembly is fixedly installed on one side of the second side protection plate. And the extending assembly comprises a third side protection plate, a second hydraulic cylinder is fixedly installed on the surface of the other side of the second side protection plate, a connecting plate is fixedly installed at one end of the surface of one side of the third side protection plate, and a first reinforcing frame is fixedly installed on the surface of one side of the first side protection plate. According to the side protection device, the third side protection plate is arranged on one side of the second side protection plate, the third side protection plate abuts against the lateral working face in the supporting process, the supporting area of the side protection device is increased, the exposed working face is reduced, the supporting effect of the side protection device is improved, and the area of the exposed working face is reduced only by upwards moving the side protection plate in the coal mining process; and the flying gangue prevention effect of the side protection device is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, specifically to a coal mine fully mechanized mining face anti-slag protection device. Background Technology

[0002] Longwall mining refers to a longwall mining technique that involves underground mining. It is suitable for medium-thick coal seams with stable coal seams, hard roofs, no faults, and gentle dips, as well as for layered longwall mining of thick coal seams. In longwall mining faces, hydraulic supports, scraper conveyors, and drum shearers need to be installed. In transport roadways, conveyor belts and extendable belt conveyors are installed. Hydraulic supports are important support equipment for underground coal seam mining, and sidewalls are an important component of hydraulic supports, playing a role in supporting the coal face and preventing rockfall.

[0003] Existing side protection plates are usually composed of multiple levels. The side protection plates at the end need to be rotated by hydraulic cylinders during coal mining to expose the working face for mining. The exposed area of ​​the working face is relatively large, and the probability of flying rock is relatively high. Moreover, when the end side protection plates are used for support, a large amount of working face is still exposed below the end side protection plates, resulting in poor protection of the working face. Utility Model Content

[0004] The purpose of this utility model is to provide a coal mine fully mechanized mining face anti-slag protection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The coal mine fully mechanized mining face anti-slag protection device includes:

[0007] A No. 1 protective side panel, wherein a No. 2 protective side panel is provided on one side of the No. 1 protective side panel;

[0008] The hydraulic components are fixedly installed on one side surface of the No. 1 side guard plate;

[0009] An extension component is fixedly installed on one side of the No. 2 side guard plate. The extension component includes a No. 3 side guard plate. A No. 2 hydraulic cylinder is fixedly installed on the other side surface of the No. 2 side guard plate. A connecting plate is fixedly installed at one end of one side surface of the No. 3 side guard plate.

[0010] Furthermore, a No. 1 reinforcing frame is fixedly installed on one side surface of the No. 1 side panel, and a No. 1 connecting seat is symmetrically fixedly installed on one end of the No. 1 side panel, with a No. 1 rotating rod rotatably connected inside the No. 1 connecting seat.

[0011] Preferably, the first rotating rod is rotatably connected to the first connecting seat, the first rotating rod is fixedly connected to the second side guard plate, and a second reinforcing frame is fixedly installed on one side surface of the second side guard plate.

[0012] Furthermore, the second side panel has symmetrically provided grooves on one side surface, and slide rods are symmetrically fixedly installed on the other side surface of the second side panel located on one side of the grooves.

[0013] Preferably, a sliding sleeve is symmetrically fixedly installed on one side surface of the No. 3 side panel, the sliding sleeve passes through the sliding groove and is slidably connected to the sliding rod at the corresponding position, and a No. 3 reinforcement frame is fixedly installed on one side surface of the No. 3 side panel.

[0014] Furthermore, the hydraulic assembly includes:

[0015] The No. 2 connecting seat is fixedly installed on one side surface of the No. 1 side panel;

[0016] The No. 3 connecting seat is fixedly installed on the other side surface of the No. 2 side guard plate;

[0017] Two rotating rods are rotatably connected to the inside of the second and third connecting seats, respectively.

[0018] Preferably, a connecting sleeve is fixedly installed on the outer surface of both No. 2 rotating rods, and a No. 1 hydraulic cylinder is fixedly connected between the two connecting sleeves.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The stability and firmness of the No. 1 side guard plate are increased by the No. 1 reinforcement frame, and the stability and firmness of the No. 2 side guard plate are increased by the No. 2 reinforcement frame. The No. 1 hydraulic cylinder extends and retracts through the rotational connection between the No. 1 rotating rod and the No. 1 connecting seat. The No. 1 hydraulic cylinder can drive the No. 2 side guard plate to flip under the drive of the No. 1 hydraulic cylinder.

[0021] 2. The No. 2 hydraulic cylinder extends, pushing the No. 3 side guard plate to move, extending the support range of the No. 2 side guard plate. Thus, by setting the No. 3 side guard plate on one side of the No. 2 side guard plate, during support, the No. 3 side guard plate abuts against the side working face, increasing the support area of ​​the side guard device. During coal mining, the No. 3 side guard plate moves up, so that the No. 2 side guard plate does not move, reducing the exposed working face. The coal mining device operates on the exposed working face of the moved No. 3 side guard plate, improving the support effect of the side guard device. Moreover, by only moving the No. 3 side guard plate up to reduce the exposed working face area during coal mining, the anti-slag flying effect of the side guard device is improved. Attached Figure Description

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

[0023] Figure 2 This is a schematic diagram of the overall unfolded structure of this utility model;

[0024] Figure 3This is a schematic diagram of the overall disassembled structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of the extension component and the No. 2 side guard plate in this utility model;

[0026] Figure 5 This is a schematic diagram of the hydraulic component structure in this utility model.

[0027] In the diagram: 1. Side guard plate No. 1; 101. Reinforcing frame No. 1; 102. Side guard plate No. 2; 103. Reinforcing frame No. 2; 104. Slide groove; 105. Connecting seat No. 1; 106. Rotating rod No. 1; 2. Hydraulic assembly; 201. Connecting seat No. 2; 202. Connecting seat No. 3; 203. Rotating rod No. 2; 204. Connecting sleeve; 205. Hydraulic cylinder No. 1; 3. Extension assembly; 301. Side guard plate No. 3; 302. Reinforcing frame No. 3; 303. Slide rod; 304. Slide sleeve; 305. Hydraulic cylinder No. 2; 306. Connecting plate. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-5 In this embodiment of the utility model, the anti-slag-flying protection device for a fully mechanized coal mining face includes a first protection plate 1, a second protection plate 102 is provided on one side of the first protection plate 1, a hydraulic component 2 is fixedly installed on one side surface of the first protection plate 1, an extension component 3 is fixedly installed on one side of the second protection plate 102, the extension component 3 includes a third protection plate 301, a second hydraulic cylinder 305 is fixedly installed on the other side surface of the second protection plate 102, and a connecting plate 306 is fixedly installed at one end of one side surface of the third protection plate 301.

[0030] Specifically, the No. 1 and No. 2 side support plates 102 are spread out to support the working face, and the No. 3 side support plate 301 extends and moves downward to increase the support area of ​​the vertical surface of the working face. Example 1

[0031] like Figure 1-4As shown, in this embodiment, a first reinforcing frame 101 is fixedly installed on one side surface of the first side plate 1, and a first connecting seat 105 is symmetrically fixedly installed on one end of the first side plate 1. A first rotating rod 106 is rotatably connected inside the first connecting seat 105. The first rotating rod 106 is rotatably connected to the first connecting seat 105, and the first rotating rod 106 is fixedly connected to the second side plate 102. A second reinforcing frame 103 is fixedly installed on one side surface of the second side plate 102.

[0032] In this embodiment, the first reinforcement frame 101 increases the stability and firmness of the first side guard plate 1, and the second reinforcement frame 103 increases the stability and firmness of the second side guard plate 102. Through the rotational connection of the first rotating rod 106 and the first connecting seat 105, the second side guard plate 102 can be flipped under the drive of the first hydraulic cylinder 205.

[0033] like Figure 2-4 As shown, in this embodiment, a sliding groove 104 is symmetrically provided on one side surface of the second side guard plate 102, and a sliding rod 303 is symmetrically fixedly installed on the other side surface of the second side guard plate 102 on one side of the sliding groove 104; a sliding sleeve 304 is symmetrically fixedly installed on one side surface of the third side guard plate 301, the sliding sleeve 304 passes through the sliding groove 104 and is slidably connected to the sliding rod 303 at the corresponding position, and a third reinforcing frame 302 is fixedly installed on one side surface of the third side guard plate 301.

[0034] In specific implementation, hydraulic cylinder 305 extends, pushing side plate 301 to move, extending the support range of side plate 102. Through the sliding connection of sliding sleeve 304 and sliding rod 303, the stability of side plate 301 during movement is increased. Thus, by setting side plate 301 on one side of side plate 102, side plate 301 abuts against the side working face during support, increasing the support area of ​​the side protection device. During coal mining, side plate 301 moves upward, preventing side plate 102 from moving and reducing the exposed working face. The coal mining device operates on the exposed working face of side plate 301, improving the support effect of the side protection device. Furthermore, by only moving side plate 301 upward during coal mining to reduce the exposed working face area, the anti-slag effect of the side protection device is improved.

[0035] like Figure 2 and Figure 3 As shown, in this embodiment, the hydraulic assembly 2 includes: a second connecting seat 201 fixedly installed on one side surface of the first side plate 102, a third connecting seat 202 fixedly installed on the other side surface of the second side plate 102, and two second rotating rods 203 rotatably connected to the inside of the second connecting seat 201 and the third connecting seat 202 respectively; connecting sleeves 204 are fixedly installed on the outer surfaces of the two second rotating rods 203, and a first hydraulic cylinder 205 is fixedly connected between the two connecting sleeves 204.

[0036] In practice, the first hydraulic cylinder 205 extends and retracts, and through the rotational connection of the second rotating rod 203 and the second connecting seat 201, the first hydraulic cylinder 205 can drive the second side guard plate 102 to rotate.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coal mine fully mechanized mining face anti-slag protection device, characterized in that, include: A first side guard plate (1) is provided on one side of the first side guard plate (1); The hydraulic component (2) is fixedly installed on one side surface of the No. 1 guardrail plate (1); The extension component (3) is fixedly installed on one side of the second side guard plate (102). The extension component (3) includes the third side guard plate (301). The second hydraulic cylinder (305) is fixedly installed on the other side surface of the second side guard plate (102). A connecting plate (306) is fixedly installed at one end of one side surface of the third side guard plate (301).

2. The anti-slag-flying device for coal mine fully mechanized mining faces according to claim 1, characterized in that, A first reinforcing frame (101) is fixedly installed on one side surface of the first side panel (1), and a first connecting seat (105) is symmetrically fixedly installed at one end of the first side panel (1). A first rotating rod (106) is rotatably connected inside the first connecting seat (105).

3. The anti-slag-flying device for coal mine fully mechanized mining faces according to claim 2, characterized in that, The first rotating rod (106) is rotatably connected to the first connecting seat (105), and the first rotating rod (106) is fixedly connected to the second side plate (102). The second reinforcing frame (103) is fixedly installed on one side surface of the second side plate (102).

4. The anti-slag-flying device for coal mine fully mechanized mining faces according to claim 1, characterized in that, The second side panel (102) has symmetrical grooves (104) on one side surface, and slide rods (303) are symmetrically fixedly installed on the other side surface of the second side panel (102) on one side of the grooves (104).

5. The anti-slag-flying device for fully mechanized coal mining faces according to claim 4, characterized in that, A sliding sleeve (304) is symmetrically fixedly installed on one side surface of the No. 3 side panel (301). The sliding sleeve (304) passes through the sliding groove (104) and is slidably connected to the sliding rod (303) at the corresponding position. A No. 3 reinforcing frame (302) is fixedly installed on one side surface of the No. 3 side panel (301).

6. The anti-slag-flying device for coal mine fully mechanized mining faces according to claim 1, characterized in that, The hydraulic assembly (2) includes: The No. 2 connecting seat (201) is fixedly installed on one side surface of the No. 1 side guard plate (1); The No. 3 connecting seat (202) is fixedly installed on the other side surface of the No. 2 side guard plate (102); Two second-order rotating rods (203) are rotatably connected to the inside of the second-order connecting seat (201) and the third-order connecting seat (202), respectively.

7. The anti-slag-flying device for coal mine fully mechanized mining faces according to claim 6, characterized in that, Two No. 2 rotating rods (203) are fixedly installed with connecting sleeves (204) on their outer surfaces, and a No. 1 hydraulic cylinder (205) is fixedly connected between the two connecting sleeves (204).

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