Protective device for coal mining in coal mine

Abstract

The utility model relates to the technical field of coal mine coal mining protection, in particular to a coal mine coal mining protection device which comprises two sliding rails, sliding plates are connected to the two sliding rails in a sliding mode, a mounting plate is fixedly connected to the two sliding plates, two rotating rods are connected to the mounting plate in a rotating mode, and the two rotating rods are connected to the two sliding rails in a sliding mode. The top ends of the rotating rods are fixedly connected with second mounting frames, the mounting plate is rotationally connected with two hydraulic rods, the telescopic ends of the two hydraulic rods are rotationally connected with the two second mounting frames correspondingly, the mounting plate is fixedly connected with a supporting rod, and the top end of the supporting rod is fixedly connected with a first mounting frame; the first mounting frame is located between the two second mounting frames, the first mounting frame and the second mounting frames are each provided with a plurality of buffering bodies, and the sliding plate is provided with a limiting structure; and the operation space for dismounting and replacing the buffer body is effectively expanded, so that the convenience of maintenance work is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a protective device, concretely is a protective device for coal mining belongs to coal mining protection technical field. BACKGROUND

[0002] The mine buffer bed is an important equipment for the material falling point of the belt conveyor, and is mainly used for replacing the buffer roller and is installed at the material inlet of the belt conveyor and the like. When the material falls, the buffer bed can fully and effectively absorb the impact force of the falling material by virtue of the excellent high-elasticity special rubber layer and the like structure, greatly reduces the impact of the material on the conveying belt, thereby protecting the conveying belt and preventing the longitudinal tearing of the belt caused by the breakage and falling of the roller. At the same time, the probability of the longitudinal tearing of the belt after being penetrated by sharp objects or sharp material is also reduced, thereby playing a protective role on the coal mine conveying equipment. In order to make the buffer body better adhere to the arc-shaped bottom surface of the conveying belt, thereby providing stable support and buffering effect for the conveying belt, the buffer bed is usually provided in a "U" shape.

[0003] However, when conveying materials such as ores in the mining industry, the hard ore particles will produce strong friction and impact on the surface of the buffer bed, causing the buffer body to wear out quickly, so the buffer body needs to be repaired and replaced. However, the operation space left for the maintenance personnel is small due to the limited space of the working environment such as underground coal mine, the installation position of the buffer bed is close to the roadway wall or other equipment, and it is difficult to use tools and perform disassembly and installation operations. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a protective device for coal mining, which is characterized by the following technical solutions: two sliding rails are provided, a sliding plate is slidably connected to each sliding rail, an installation plate is fixedly connected to the two sliding plates, a support structure is installed on the installation plate, the support structure includes a rotating rod, two rotating rods are rotatably connected to the installation plate, a second mounting bracket is fixedly connected to the top end of each rotating rod, two hydraulic rods are rotatably connected to the installation plate, the telescopic ends of the two hydraulic rods are rotatably connected to the two second mounting brackets, a support rod is fixedly connected to the installation plate, a first mounting bracket is fixedly connected to the top end of the support rod, the first mounting bracket is located between the two second mounting brackets, a plurality of buffer bodies are installed on the first mounting bracket and the second mounting brackets, and a limiting structure is installed on the sliding plate.

[0005] The utility model discloses a protective device for coal mining, which is characterized by the following technical solutions: two sliding rails are provided, a sliding plate is slidably connected to each sliding rail, an installation plate is fixedly connected to the two sliding plates, a support structure is installed on the installation plate, the support structure includes a rotating rod, two rotating rods are rotatably connected to the installation plate, a second mounting bracket is fixedly connected to the top end of each rotating rod, two hydraulic rods are rotatably connected to the installation plate, the telescopic ends of the two hydraulic rods are rotatably connected to the two second mounting brackets, a support rod is fixedly connected to the installation plate, a first mounting bracket is fixedly connected to the top end of the support rod, the first mounting bracket is located between the two second mounting brackets, a plurality of buffer bodies are installed on the first mounting bracket and the second mounting brackets, and a limiting structure is installed on the sliding plate.

[0006] Preferably, the cross section of the sliding plate is in a "T" shape structure, the two second mounting frames are symmetrically arranged about the middle part of the first mounting frame, and the two hydraulic rods are symmetrically arranged about the middle part of the mounting plate.

[0007] Preferably, the limiting structure comprises a limiting block, the sliding plate is slidably connected with the limiting block, a plurality of limiting grooves are equidistantly formed on the sliding rail, and the limiting block is inserted into the limiting groove.

[0008] Preferably, the sliding plate is fixedly connected with a connecting block, the limiting block is fixedly connected with an anti-dropping block, and the anti-dropping block is fixedly connected with the connecting block through a spring.

[0009] Preferably, the sliding plate is fixedly connected with the connecting block through a guide rod, and the anti-dropping block is slidably connected with the guide rod.

[0010] Preferably, the top end of the two limiting blocks is fixedly connected with the same connecting rod, and the bottom end of the limiting block is in a bevel structure.

[0011] Preferably, the bottom end of the buffer body is fixedly connected with two insertion blocks, a plurality of insertion grooves are equidistantly formed on the first mounting frame and the second mounting frame, and the insertion block is inserted into the insertion groove.

[0012] Preferably, the insertion block is perpendicular to the buffer body, and the end of the insertion block is in a trapezoidal structure.

[0013] Preferably, the first mounting frame and the second mounting frame are provided with a waist-shaped groove, and the height of the hydraulic rod after being elongated is higher than the height of the rotating rod and the supporting rod.

[0014] The utility model discloses a beneficial effect is: two the sliding rail all slidingly connected with the sliding plate, two the sliding plate all fixedly connected with the same mounting plate, the mounting plate all rotatably connected with two rotating rods, the top of rotating rod all fixedly connected with second mounting frame, the mounting plate all rotatably connected with two hydraulic rods, and the telescopic end of two hydraulic rods is rotatably connected with two second mounting frames respectively. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the connecting structure schematic diagram of the utility model's hydraulic rod and second mounting frame;

[0017] Figure 3 As Figure 2 the A part structure enlargement schematic view shown in the figure;

[0018] Figure 4 As Figure 2 the B part structure enlargement schematic view shown in the figure;

[0019] Figure 5 It is the connection structure schematic view of slide rail and limit block of the utility model.

[0020] In the figure: 1, slide rail; 2, slide plate; 3, mounting plate; 4, limit structure; 401, limit block; 402, limit slot; 403, connecting block; 404, anti-drop block; 405, guide rod; 406, spring; 407, connecting rod; 5, support structure; 501, rotating rod; 502, hydraulic rod; 503, support rod; 504, first mounting bracket; 505, second mounting bracket; 6, buffer body; 7, plug block; 8, plug slot; 9, waist-shaped slot. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-5 As shown in the figure, a kind of protective device for coal mining, including two slide rails 1, two described slide rails 1 are slidably connected with slide plate 2, two described slide plates 2 are fixedly connected with the same mounting plate 3, the mounting plate 3 is installed with support structure 5, the support structure 5 includes rotating rod 501, the mounting plate 3 is rotatably connected with two rotating rods 501, the top of the rotating rod 501 is fixedly connected with second mounting bracket 505, the mounting plate 3 is rotatably connected with two hydraulic rods 502, the telescopic end of two described hydraulic rods 502 is rotatably connected with two second mounting brackets 505, the mounting plate 3 is fixedly connected with support rod 503, the top of the support rod 503 is fixedly connected with first mounting bracket 504, the first mounting bracket 504 is between two second mounting brackets 505, the first mounting bracket 504 and second mounting bracket 505 are all installed with multiple buffer bodies 6, the cross section of the slide plate 2 is "T" shaped structure, two described second mounting brackets 505 about the middle part of first mounting bracket 504 are symmetrically arranged, two described hydraulic rods 502 about the middle part of mounting plate 3 are symmetrically arranged, the slide plate 2 is installed with limit structure 4.

[0023] As a technical optimization scheme of the utility model, the limiting structure 4 includes limiting block 401, the sliding plate 2 is slidably connected with limiting block 401, a plurality of limiting grooves 402 are equidistantly formed on the slide rail 1, limiting block 401 is inserted with limiting groove 402, the connecting block 403 is fixedly connected on the sliding plate 2, the anti -drop block 404 is fixedly connected on the limiting block 401, the spring 406 is fixedly connected between the anti -drop block 404 and the connecting block 403, the same connecting rod 407 is fixedly connected to the top of the two limiting blocks 401, and the bottom of limiting block 401 is inclined plane structure;The operator can pull the connecting rod 407, make limiting block 401 slide out from limiting groove 402, limiting block 401 moves up while driving anti -drop block 404 to move up and contact spring 406 to contract, thereby quickly removing the limiting of sliding plate 2 on slide rail 1, continuously pull the connecting rod 407, and the connecting rod 407 drives the sliding plate 2 to slide on the slide rail 1, when the sliding plate 2 drives the mounting plate 3, the support structure 5 and the buffer body 6 to move to the appropriate position, the connecting rod 407 is released, at this time, spring 406 contracts and drives limiting block 401 to slide down, limiting block 401 is inserted into the limiting groove 402 in the corresponding position on the slide rail 1, thereby locking the sliding plate 2 on the slide rail 1, completing the position fixing of the device, thereby effectively expanding the operation space of the buffer body 6 disassembly and replacement, and further improving the convenience of maintenance work.

[0024] As a technical optimization scheme of the utility model, the sliding plate 2 and the connecting block 403 are fixedly connected with guide rod 405, and the anti -drop block 404 is slidably connected with guide rod 405;Guide rod 405 has a guiding effect on anti -drop block 404 and limiting block 401, so that limiting block 401 moves more stably.

[0025] As a technical optimization scheme of the utility model, the bottom of the buffer body 6 is fixedly connected with two plug blocks 7, a plurality of plug slots 8 are equidistantly formed on the first mounting frame 504 and the second mounting frame 505, the plug block 7 is inserted with the plug slot 8, the plug block 7 is perpendicular to the buffer body 6, and the end of the plug block 7 is trapezoidal structure;When installing the buffer body 6, the plug block 7 at the bottom of the new buffer body 6 is aligned with the plug slot 8 on the first mounting frame 504 or the second mounting frame 505, then the buffer body 6 is pressed downward, the plug block 7 is inserted into the plug slot 8, thereby quickly completing the positioning of the buffer body 6, making the buffer body 6 installation more convenient, and the installation position is more accurate.

[0026] As a technical optimization scheme of the utility model, the first mounting frame 504 and the second mounting frame 505 are provided with a waist-shaped slot 9, and the height of the hydraulic rod 502 after extension is higher than the height of the rotating rod 501 and the supporting rod 503; the buffer body 6 is further fixed after the bolt is penetrated through the waist-shaped slot 9, so that the fixing of the buffer body 6 is completed, the height of the hydraulic rod 502 after extension is higher than the height of the rotating rod 501 and the supporting rod 503, so that the buffer body 6 on the second mounting frame 505 can be kept in an inclined state and better fit the arc-shaped bottom surface of the conveying belt.

[0027] In use, first, the two hydraulic rods 502 are started, the hydraulic rod 502 is retracted and the second mounting frame 505 is pulled down to make the rotating rod 501 rotate around the rotating connection between the rotating rod 501 and the mounting plate 3, with the rotation of the rotating rod 501, the angle of the second mounting frame 505 changes, and gradually rotates from the inclined state to the horizontal state, so that the height of the buffer body 6 on the second mounting frame 505 is consistent with the height of the buffer body 6 on the first mounting frame 504, and then the whole buffer bed is conveniently removed to the outside of the conveying belt for subsequent maintenance, and the inclination angle of the second mounting frame 505 is adjusted by the hydraulic rod 502, so that the buffer body 6 on the second mounting frame 505 can better fit the arc-shaped bottom surface of the conveying belt, so that the protection effect of the buffer bed on the conveying belt is better; then the operator can pull the connecting rod 407 to make the limiting block 401 slide out of the limiting slot 402, the limiting block 401 moves upward while driving the anti-coming-off block 404 to move upward and abut against the contraction of the spring 406, so that the limiting of the sliding plate 2 on the slide rail 1 is quickly released, the connecting rod 407 is continuously pulled to drive the sliding plate 2 to slide on the slide rail 1, when the sliding plate 2 drives the mounting plate 3, the supporting structure 5 and the buffer body 6 to move to a suitable position, the connecting rod 407 is released, at this time, the spring 406 is contracted and drives the limiting block 401 to slide downward, so that the limiting block 401 is inserted into the limiting slot 402 in the corresponding position on the slide rail 1, so as to lock the sliding plate 2 on the slide rail 1, the position fixing of the device is completed, so as to effectively expand the operation space of the buffer body 6 disassembly and replacement, and then the convenience of maintenance work is improved; when the buffer body 6 is installed, the plug 7 at the bottom end of the new buffer body 6 is aligned with the insertion slot 8 on the first mounting frame 504 or the second mounting frame 505, then the buffer body 6 is pressed downward, so that the plug 7 is inserted into the insertion slot 8, so that the positioning of the buffer body 6 is quickly completed, the installation of the buffer body 6 is more convenient, and the installation position is more accurate, then the buffer body 6 is further fixed after the bolt is penetrated through the waist-shaped slot 9, so that the fixing of the buffer body 6 is completed.

[0028] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0029] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person 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 a person skilled in the art can understand.

Claims

1. A protective device for coal mining, comprising two slide rails (1), characterized in that: Two slide rails (1) are provided with slidingly connected slide plates (2), and the two slide plates (2) are fixedly connected with the same mounting plate (3), the mounting plate (3) is provided with a supporting structure (5), the supporting structure (5) comprises rotating rods (501), the mounting plate (3) is rotatably connected with two rotating rods (501), the top of the rotating rod (501) is fixedly connected with a second mounting frame (505), the mounting plate (3) is rotatably connected with two hydraulic rods (502), the telescopic ends of the two hydraulic rods (502) are rotatably connected with two second mounting frames (505), the mounting plate (3) is fixedly connected with a supporting rod (503), the top of the supporting rod (503) is fixedly connected with a first mounting frame (504), the first mounting frame (504) is located between the two second mounting frames (505), and the first mounting frame (504) and the second mounting frame (505) are provided with a plurality of buffer bodies (6), and the slide plate (2) is provided with a limiting structure (4).

2. The protection device for coal mining according to claim 1, characterized in that: The cross section of the slide plate (2) is in a "T" shape structure, the two second mounting frames (505) are symmetrically arranged about the middle part of the first mounting frame (504), and the two hydraulic rods (502) are symmetrically arranged about the middle part of the mounting plate (3).

3. The protection device for coal mining according to claim 1, characterized in that: The limiting structure (4) comprises a limiting block (401), the slide plate (2) is slidingly connected with the limiting block (401), a plurality of limiting grooves (402) are equidistantly formed in the slide rail (1), and the limiting block (401) is inserted into the limiting groove (402).

4. The protection device for coal mining according to claim 3, characterized in that: The slide plate (2) is fixedly connected with a connecting block (403), the limiting block (401) is fixedly connected with an anti-dropping block (404), and the anti-dropping block (404) and the connecting block (403) are fixedly connected with a spring (406).

5. The protection device for coal mining according to claim 4, characterized in that: The slide plate (2) and the connecting block (403) are fixedly connected with a guide rod (405), and the anti-dropping block (404) and the guide rod (405) are slidingly connected.

6. The protection device for coal mining according to claim 4, characterized in that: The top of the two limiting blocks (401) is fixedly connected with the same connecting rod (407), and the bottom of the limiting block (401) is in a slope structure.

7. The protection device for coal mining according to claim 1, characterized in that: The bottom of the buffer body (6) is fixedly connected with two insertion blocks (7), the first mounting frame (504) and the second mounting frame (505) are equidistantly provided with a plurality of insertion grooves (8), and the insertion block (7) is inserted into the insertion groove (8).

8. The protection device for coal mining according to claim 7, characterized in that: The insertion block (7) and the buffer body (6) are perpendicular to each other, and the end of the insertion block (7) is in a trapezoidal structure.

9. The protective device for coal mining according to claim 7, characterized in that: The first mounting frame (504) and the second mounting frame (505) are provided with a waist-shaped groove (9), and the height of the hydraulic rod (502) after being elongated is higher than the height of the rotating rod (501) and the supporting rod (503).

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