A large block collecting net chain structure in front of a large mining height working face

Abstract

The utility model relates to the technical field of large mining height, disclose a kind of large mining height working face frame front big piece collection net chain structure, including bottom plate, the top of bottom plate is provided with support plate, the top of bottom plate is provided with collection mechanism;The collection mechanism includes fixed plate, the top of fixed plate is rotatably connected with rotating plate, the rear of rotating plate is fixedly connected with net chain, the rear of net chain is fixedly connected with locating plate, the top rear side of bottom plate is fixedly connected with vertical plate, the top of locating plate is provided with connecting piece, the rear of support plate is provided with mounting mechanism.In the utility model, when big piece falls, it can fall on the unfolded net chain, and it is collected by the net chain, and when cleaning is needed, the hydraulic rod is started to drive the support plate to rotate, so that the net chain rotates, and then all the big pieces above are poured into the chute, avoiding manual picking to save time and effort.

Description

Technical Field

[0001] This utility model relates to the field of high mining height technology, and in particular to a large-block collection net chain structure in front of the high mining face frame. Background Technology

[0002] High-extraction coal mining technology refers to a fully mechanized coal mining process where the cutting height of the coal mining machine exceeds 3.5m in a single operation, covering the entire height. With the continuous development of coal mining technology, fully mechanized mining faces with a mining height of 4.5m or higher are generally referred to as high-extraction faces. In order to protect the lives of workers, hydraulic supports are required at this time.

[0003] High-extraction working faces have large mining heights and high pressure on the roof strata above the coal seam. Hydraulic supports use high-pressure liquid to drive the columns and generate strong supporting force, which can effectively support the roof and prevent it from sinking, breaking, and collapsing, thus providing a safe working environment for coal mining personnel and equipment.

[0004] During high-extraction mining operations, large chunks are prone to falling and accumulating on the tracks of equipment such as scraper conveyors and coal mining machines at the coal face, hindering normal operation and causing mining operations to be interrupted. Cleaning these large chunks requires manual picking and removal, which consumes a lot of time and manpower when there are many large chunks, reducing coal mining efficiency. To address this issue, a large chunk collection mesh chain structure is proposed to solve the above problems in front of the high-extraction mining face. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a large block collection net chain structure in front of the high mining face, which aims to improve the problem that manual picking of large blocks is time-consuming and labor-intensive in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a large-block collection net chain structure in front of a high-extraction working face frame, including a base plate, a support plate at the top of the base plate, and a collection mechanism at the top of the base plate;

[0007] The collecting mechanism includes a fixed plate, a rotating plate rotatably connected to the top of the fixed plate, a mesh chain fixedly connected to the rear of the rotating plate, a positioning plate fixedly connected to the rear of the mesh chain, a vertical plate fixedly connected to the top rear side of the base plate, a connector provided on the top of the positioning plate, and an installation mechanism provided at the rear of the support plate.

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

[0009] The connector includes a connecting rope, the bottom of which is fixedly connected to the top of the positioning plate.

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

[0011] The bottom of the positioning plate is fixedly connected to the inner wall of the vertical plate by bolts, and a square groove is opened at the top of the vertical plate, the inner wall of the square groove being larger than the bottom of the positioning plate.

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

[0013] The top of the fixing plate is fixedly connected to the top of the base plate by screws, and the fixing plate is configured as an inverted T-shape.

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

[0015] Handles are fixedly connected to both the front and rear sides of the positioning plate.

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

[0017] The installation mechanism includes a limiting plate, the front end of which is fixedly connected to the rear of the support plate, a fixing column fixedly connected to the top of the limiting plate, a limiting block elastically connected to the inner wall of the fixing column via a connecting spring, and a connecting ring fixedly connected to the top front side of the connecting rope, the inner surface of which contacts the outer arc surface of the fixing column.

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

[0019] The outer wall of the limiting block is slidably connected to the inner wall of the fixed column.

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

[0021] The inner surface of the connecting ring contacts the inclined surface of the limiting block.

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

[0023] 1. In this utility model, through the cooperation between the base plate, support plate and its collection mechanism, when a large piece falls, it can land on the unfolded net chain and be collected by the net chain. When cleaning is required, the hydraulic rod is activated to drive the support plate to rotate, thereby causing the net chain to rotate and pouring all the large pieces above into the chute, avoiding manual picking and thus achieving the purpose of saving time and labor.

[0024] 2. In this utility model, by setting up the mutual cooperation between the installation mechanism and other structures, when the connecting ring is installed manually, the connecting ring is directly put on the fixed column, and then the limiting block is reset to prevent the connecting ring from falling off. The overall operation is relatively simple and convenient. Attached Figure Description

[0025] Figure 1This is a three-dimensional schematic diagram of a large-block collection mesh chain structure in front of a high-extraction working face frame proposed in this utility model.

[0026] Figure 2 This is a three-dimensional schematic diagram of the base plate of a large-block collecting mesh chain structure in front of a high-extraction working face frame proposed in this utility model.

[0027] Figure 3 This is a three-dimensional schematic diagram of the vertical plate of a large-block collecting mesh chain structure in front of a high-extraction working face frame proposed in this utility model.

[0028] Figure 4 This is a cross-sectional internal view of the fixed column of a large-block collecting mesh chain structure in front of a high-extraction working face, as proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Support plate; 3. Collection mechanism; 301. Fixing plate; 302. Rotating plate; 303. Mesh chain; 304. Vertical plate; 305. Positioning plate; 306. Connecting rope; 307. Handle; 4. Installation mechanism; 401. Limiting plate; 402. Connecting ring; 403. Connecting spring; 404. Fixing column; 405. Limiting block. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-2 One embodiment of this utility model is a large block collection mesh chain structure in front of a high-extraction working face, including a base plate 1, a support plate 2 at the top of the base plate 1, the base plate 1 being a hydraulic support base plate 1, and a hydraulic rod above the base plate 1 to cause the support plate 2 to rotate. This is prior art and will not be explained in detail here. A collection mechanism 3 is provided at the top of the base plate 1; the collection mechanism 3 is used to collect fallen large blocks.

[0033] Reference Figures 1-3The collection mechanism 3 includes a fixed plate 301, a rotating plate 302 rotatably connected to the top of the fixed plate 301, the rotating plate 302 can rotate forward when needed to discharge the collected large pieces, a net chain 303 is fixedly connected to the rear of the rotating plate 302, a positioning plate 305 is fixedly connected to the rear of the net chain 303, the net chain 303 is similar to a fishing net but made of stainless steel wire, a vertical plate 304 is fixedly connected to the rear of the top of the base plate 1, a connector is provided on the top of the positioning plate 305, the positioning plate 305 can be fixed when the net chain 303 is opened, so that the net chain 303 can collect large pieces, and an installation mechanism 4 is provided at the rear of the support plate 2, the installation mechanism 4 facilitates the connection of the connector to the support plate 2.

[0034] Reference Figures 1-3 The connector includes a connecting rope 306, the bottom of which is fixedly connected to the top of the positioning plate 305. When the support plate 2 rotates, the connecting rope 306 is straightened. After straightening, the support plate 2 continues to rotate, thereby rotating the mesh chain 303 forward by 45 degrees, thus discharging the collected large pieces into the chute on the front side. The bottom of the positioning plate 305 is fixedly connected to the inner wall of the vertical plate 304 by bolts. A square groove is opened at the top of the vertical plate 304, and the inner wall of the square groove is larger than the bottom of the positioning plate 305. During collection, the positioning plate 305 is installed in the inner wall of the vertical plate 304 by bolts. When it is necessary to unload the large pieces from the mesh chain 303, the bolt limit is released, and the positioning plate 305 is in an active state, thus not affecting the rotation of the mesh chain 303. The top of the fixing plate 301 is fixedly connected to the top of the base plate 1 by screws. When it is necessary to replace the vertical pin, the screw limit can be released, allowing the fixing plate 301 to move backward, at which point the mesh chain 303 can be retracted. The fixing plate 301 is set in an inverted T shape, which facilitates screw installation. The front and rear sides of the positioning plate 305 are fixedly connected with handles 307, which facilitate manual removal of the positioning plate 305 when needed.

[0035] Reference Figures 2-4The installation mechanism 4 includes a limiting plate 401, the front end of which is fixedly connected to the rear of the support plate 2. The support plate 2 supports the limiting plate 401, and the two move along the same trajectory. A fixing post 404 is fixedly connected to the top of the limiting plate 401. The inner wall of the fixing post 404 is elastically connected to a limiting block 405 via a connecting spring 403. Two sets of limiting blocks 405 are provided, each with an inclined surface facing upwards. The elasticity of the connecting spring 403 allows the limiting blocks 405 to have a complex... The connecting rope 306 has a fixed connection to the top front side of the connecting rope 306. The inner surface of the connecting ring 402 contacts the outer arc surface of the fixed post 404. When the connecting ring 402 contacts and engages with the fixed post 404, the rotation of the support plate 2 will straighten the connecting rope 306, thus facilitating the rotation of the mesh chain 303. The outer wall of the limiting block 405 is slidably connected to the inner wall of the fixed post 404. The limiting block 405 can move horizontally, and when the connecting ring 402 is disassembled, it can be... Figure 4 The two sets of limiting blocks 405 are pinched together by hand and moved inward. Then the connecting ring 402 is taken out upward. The inner surface of the connecting ring 402 contacts the inclined surface of the limiting block 405. When installing the connecting ring 402, simply put the connecting ring 402 directly onto the fixing post 404 so that the bottom of the connecting ring 402 contacts and presses the two sets of limiting blocks 405, causing it to move towards the middle. The connecting ring 402 continues to move downward, and the limiting blocks 405 reset, thus preventing the connecting ring 402 from moving upward and detaching from the fixing post 404.

[0036] Working principle: such as Figure 1 As shown, the mesh chain 303 is in the deployed state at this time, capable of catching large pieces of material falling in front of the frame. When large pieces of material fall in front of the high-extraction working face frame, the mesh chain 303, due to its flexible structure similar to a fishing net, naturally catches the material. The positioning plate 305 is fixed to the vertical plate 304 with bolts, and the fixing plate 301 is fixed to the base plate 1 with screws, ensuring that the mesh chain 303 remains taut and preventing material from slipping. The connecting ring 402 at the top of the connecting rope 306 is sleeved on the fixing column 404 of the installation mechanism 4 to prevent it from detaching, forming a stable suspension support. When it is necessary to discharge the collected large pieces of material, the operator first loosens the bolts between the positioning plate 305 and the vertical plate 304, allowing the positioning plate 305 to move freely. Subsequently, the hydraulic rod drives the support plate 2 to rotate, causing the limiting plate 401 and the fixing column 404 to rotate synchronously. When the fixed column 404 rotates, the connecting rope 306 is straightened (because there is a large block above the mesh chain 303), which in turn pulls the mesh chain 303 to rotate forward 45° around the rotating plate 302, dumping the material into the front chute. Due to the sleeve structure between the connecting ring 402 and the fixed column 404 and the anti-detachment design of the limiting block 405, the mesh chain 303 remains stably connected during rotation until the material is completely discharged.

[0037] When the hydraulic support pin needs to be replaced, the operator loosens the connecting screws between the fixing plate 301 and the base plate 1, and moves the fixing plate 301 backward. At this time, the rotating plate 302 loses its limit, and the mesh chain 303 can be retracted to avoid interfering with the maintenance operation. After maintenance is completed, the fixing plate 301 is re-fixed, the mesh chain 303 is unfolded, and the collection function is restored by connecting it to the vertical plate 304 through the bolts of the positioning plate 305. When installing the connecting ring 402, the connecting ring 402 is directly inserted into the fixing post 404, and its bottom presses against the inclined surface of the limiting block 405 to make it retract inward (compressing the connecting spring 403); when the connecting ring 402 passes the limiting block 405, the spring returns to its original position and pushes the limiting block 405 to lock the bottom of the connecting ring 402, thus completing the locking.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A large-block collection mesh chain structure in front of a high-extraction working face, comprising a base plate (1), characterized in that: A support plate (2) is provided at the top of the base plate (1), and a collection mechanism (3) is provided at the top of the base plate (1). The collecting mechanism (3) includes a fixed plate (301), a rotating plate (302) is rotatably connected to the top of the fixed plate (301), a mesh chain (303) is fixedly connected to the rear of the rotating plate (302), a positioning plate (305) is fixedly connected to the rear of the mesh chain (303), a vertical plate (304) is fixedly connected to the rear of the top of the bottom plate (1), a connector is provided on the top of the positioning plate (305), and an installation mechanism (4) is provided at the rear of the support plate (2).

2. The large-block collection mesh chain structure in front of the high-extraction working face according to claim 1, characterized in that: The connector includes a connecting rope (306), the bottom of which is fixedly connected to the top of the positioning plate (305).

3. The large-block collection mesh chain structure in front of the high-extraction working face according to claim 1, characterized in that: The bottom of the positioning plate (305) is fixedly connected to the inner wall of the vertical plate (304) by bolts. A square groove is opened on the top of the vertical plate (304), and the inner wall of the square groove is larger than the bottom of the positioning plate (305).

4. The large-block collection mesh chain structure in front of the high-extraction working face according to claim 1, characterized in that: The top of the fixing plate (301) is fixedly connected to the top of the base plate (1) by screws, and the fixing plate (301) is configured as an inverted T shape.

5. The large-block collection mesh chain structure in front of the working face frame at high mining height according to claim 1, characterized in that: The positioning plate (305) is fixedly connected to handles (307) on both the front and rear sides.

6. The large-block collection mesh chain structure in front of the working face frame at high mining height according to claim 2, characterized in that: The installation mechanism (4) includes a limiting plate (401), the front end of which is fixedly connected to the rear of the support plate (2), and a fixing column (404) is fixedly connected to the top of the limiting plate (401). The inner wall of the fixing column (404) is elastically connected to a limiting block (405) via a connecting spring (403). A connecting ring (402) is fixedly connected to the front top of the connecting rope (306), and the inner surface of the connecting ring (402) contacts the outer arc surface of the fixing column (404).

7. The large-block collection mesh chain structure in front of the working face frame at high mining height according to claim 6, characterized in that: The outer wall of the limiting block (405) is slidably connected to the inner wall of the fixed column (404).

8. The large-block collection mesh chain structure in front of the working face frame at high mining height according to claim 6, characterized in that: The inner surface of the connecting ring (402) contacts the inclined surface of the limiting block (405).

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