A main unit for an explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device for mining.

Abstract

This utility model relates to the field of fiber Bragg grating technology and discloses a main unit of a mine explosion-proof and intrinsically safe fiber Bragg grating belt conveyor protection device. The device includes a main body, with heat dissipation mechanisms fixedly connected to the left and right sides of the inner wall of the main body for adjusting heat dissipation. A clamping mechanism is fixedly connected to the rear side of the outer wall of the heat dissipation mechanism for clamping and fixing the outer shell. A main core is fixedly connected to the middle of the inner wall of the main body, and a power board is fixedly connected to the bottom of the outer wall of the main core. The heat dissipation mechanism includes a fixing frame fixedly connected to the left and right sides of the inner wall of the main body. In this utility model, the heat dissipation mechanism is installed on both sides of the inner wall of the main body and achieves dynamic heat dissipation of the main core and power board components through mechanical structure and linkage with heat exchange elements. The rotating plate adjusts the condenser angle with the telescopic plate: when extended, it is close to the heat-generating components to enhance cooling; when retracted, it returns to its original position, relying mainly on natural convection for heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of fiber Bragg grating technology, and in particular to a main unit of a mine explosion-proof and intrinsically safe fiber Bragg grating belt conveyor protection device. Background Technology

[0002] The explosion-proof and intrinsically safe fiber Bragg grating belt conveyor for mining is a type of belt conveyor used in mining environments such as coal mines. It has both explosion-proof and intrinsically safe properties and uses fiber Bragg grating technology for monitoring and control. By utilizing the photosensitive characteristics of fiber optics, when applied to belt conveyors, it can monitor changes in the wavelength of the fiber Bragg grating to obtain real-time data on belt tension, temperature, and strain, thereby achieving fault early warning and precise control, and improving operational reliability and stability.

[0003] The main unit of the explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device for mining is a key piece of equipment used for the protection of belt conveyors in underground coal mines. It is suitable for mining environments with explosive gases and coal dust. Its explosion-proof type is explosion-proof and intrinsically safe for mining. However, in the existing explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device main units, the operating temperature range of the main unit is limited. However, the ambient temperature near the underground goaf is too high, causing the thermal drift of the grating refractive index to exceed the linear range, resulting in distorted monitoring data. In high humidity environments, the internal circuit boards and components are prone to condensation and short circuits, leading to corrosion of the main board and causing the entire system to fail. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a mine explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device main unit, which aims to improve the problem that the main unit in the prior art has a limited operating temperature range, but the ambient temperature near the underground goaf is too high, which leads to corrosion of the main board and causes the entire system to fail.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a main unit of a mine explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device, comprising a main body, wherein heat dissipation mechanisms are fixedly connected to the left and right sides of the inner wall of the main body for adjusting heat dissipation, and a clamping mechanism is fixedly connected to the rear side of the outer wall of the heat dissipation mechanism for clamping and fixing the outer shell, wherein a main core is fixedly connected to the middle of the inner wall of the main body, and a power board is fixedly connected to the bottom of the outer wall of the main core; the heat dissipation mechanism includes a first fixing frame, which is fixedly connected to the left and right sides of the inner wall of the main body, wherein a condenser is rotatably connected to an adjacent side of the outer wall of the first fixing frame, wherein a rotating plate is fixedly connected to one side of the outer wall of the condenser, wherein a telescopic plate is fixedly connected to the opposite side of the outer wall of the first fixing frame, wherein a heat dissipation plate is fixedly connected to the other side of the telescopic plate, and an adjustment component is fixedly connected to the middle of the inner wall of the first fixing frame.

[0006] As a further description of the above technical solution: The adjustment assembly includes a turntable, which is rotatably connected to one side of the outer wall of the fixed frame. A rotating shaft is fixedly connected to the left side of the outer wall of the turntable, and a metal gear is fixedly connected to the other end of the rotating shaft. A half gear is rotatably connected to the rear side of the inner wall of the fixed frame, and the half gear meshes with the metal gear. An adjustment rod is rotatably connected to the front side of the outer wall of the half gear. A sliding groove is provided on one side of the inner wall of the fixed frame, and the adjustment rod is slidably connected to one side of the inner wall of the sliding groove.

[0007] As a further description of the above technical solution: The clamping mechanism includes a second fixing frame, which is fixedly connected to the bottom of the inner wall of the main body. A connecting rod is slidably connected to an adjacent side of the inner wall of the second fixing frame. A connecting plate is fixedly connected to the top of the outer wall of the connecting rod. A pulley is rotatably connected to the rear side of the outer wall of the second fixing frame. A drive assembly is fixedly connected to the middle of the inner wall of the second fixing frame.

[0008] As a further description of the above technical solution: The drive assembly includes an electric push rod, which is fixedly connected to the middle of the inner wall of the second fixing frame. The output end of the electric push rod is rotatably connected to a clamping frame. A fixing block is fixedly connected to the top of the outer wall of the clamping frame, and a connecting shaft is rotatably connected to one side of the outer wall of the fixing block.

[0009] As a further description of the above technical solution: A slide groove is fixedly connected to one side of the outer wall of the second fixed frame, and a slide bar is slidably connected to one side of the outer wall of the second slide groove.

[0010] As a further description of the above technical solution: A cover plate is fixedly connected to the front side of the outer wall of the main body, and a display panel is installed in the middle of the inner wall of the cover plate.

[0011] As a further description of the above technical solution: Multiple wiring holes are provided on the left and right sides of the outer wall of the main body, and screws are threaded into the middle of the inner wall of the wiring holes.

[0012] As a further description of the above technical solution: A handle is fixedly connected to the top of the outer wall of the main body, and bolts are threadedly connected to the left and right sides of the outer wall of the handle.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the heat dissipation mechanism is installed on both sides of the inner wall of the main body. Through the linkage of the mechanical structure and the heat exchange element, dynamic heat dissipation of the main core and power board components is realized. The turntable drives the rotating shaft, which is driven by the metal gear and the half gear. When the turntable rotates, the half gear drives the adjusting rod to slide back and forth in the slide groove. The linkage telescopic plate controls the opening and closing of the heat dissipation plate. When the telescopic plate is extended, the heat dissipation plate increases the heat dissipation area. The rotating plate adjusts the condenser angle with the telescopic plate: when extended, it is close to the heat-generating component to enhance cooling; when retracted, it returns to its original position and the heat dissipation is mainly achieved by natural convection.

[0014] 2. In this utility model, the clamping mechanism is supported by the fixed frame two at the bottom of the inner wall of the main body. After the electric push rod in the drive component is energized, the rotational motion is converted into linear motion, which drives the output end to extend and retract. The clamping frame rotatably connected to the output end changes position accordingly. With the help of the fixed block and the connecting shaft, the angle can be flexibly adjusted to clamp objects of different shapes. The connecting rod and the top connecting plate inside the fixed frame two assist the clamping frame in its movement and maintain balance. The pulley on the rear side of the outer wall of the fixed frame two reduces friction through rolling, ensuring smooth operation of the mechanism and extending its service life. Attached Figure Description

[0015] Figure 1 A perspective view of the main unit of a mine explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device proposed in this utility model; Figure 2 This is a front view of the main unit of a mine explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device proposed in this utility model; Figure 3 This is a structural exploded view of the main unit of a mine explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device proposed in this utility model; Figure 4 This is a partial structural cross-sectional view of the main unit of a mine explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device proposed in this utility model. Figure 5 This is a partial structural diagram of the main unit of a mine explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device proposed in this utility model.

[0016] Legend: 1. Main body; 2. Heat dissipation mechanism; 201. Fixing frame one; 202. Condenser; 203. Rotating plate; 204. Telescopic plate; 205. Heat dissipation plate; 206. Adjustment component; 2061. Turntable; 2062. Rotating shaft; 2063. Metal gear; 2064. Half gear; 2065. Adjusting rod; 2066. Slide one; 3. Clamping mechanism; 301. Fixing frame two; 302. Connecting rod; 303. Connecting plate; 304. Pulley; 305. Drive component; 3051. Electric push rod; 3052. Clamping frame; 3053. Fixing block; 3054. Connecting shaft; 4. Main core; 5. Power board; 6. Slide two; 7. Sliding bar; 8. Cover plate; 9. Display panel; 10. Wiring hole; 11. Screw; 12. Handle; 13. Bolt. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a mine explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device, comprising a main body 1. A heat dissipation mechanism 2 is fixedly connected to the left and right sides of the inner wall of the main body 1, for adjusting heat dissipation. A clamping mechanism 3 is fixedly connected to the rear side of the outer wall of the heat dissipation mechanism 2, for clamping and fixing the outer shell. A main body core 4 is fixedly connected to the middle of the inner wall of the main body 1, and a power board 5 is fixedly connected to the bottom of the outer wall of the main body core 4. The heat dissipation mechanism 2 includes a fixing frame 201, which is fixedly connected to the left and right sides of the inner wall of the main body 1. A condenser 202 is rotatably connected to an adjacent side of the outer wall of the fixing frame 201. A rotating plate 203 is fixedly connected to one side of the outer wall of the condenser 202, and a telescopic plate 204 is fixedly connected to the side of the outer wall of the fixing frame 201 away from it. The telescopic plate 204 has a heat dissipation plate 205 fixedly connected to the other side. An adjustment component 206 is fixedly connected to the middle of the inner wall of the fixed frame 201. The adjustment component 206 includes a turntable 2061, which is rotatably connected to one side of the outer wall of the fixed frame 201. A rotating shaft 2062 is fixedly connected to the left side of the outer wall of the turntable 2061. A metal gear 2063 is fixedly connected to the other end of the rotating shaft 2062. A half gear 2064 is rotatably connected to the rear side of the inner wall of the fixed frame 201. The half gear 2064 meshes with the metal gear 2063. An adjustment rod 2065 is rotatably connected to the front side of the outer wall of the half gear 2064. A slide groove 2066 is opened on one side of the inner wall of the fixed frame 201. The adjustment rod 2065 is slidably connected to one side of the inner wall of the slide groove 2066. Specifically, the heat dissipation mechanism 2 is installed on the inner wall of the main body 1 and is linked with the heat exchange element to adjust the heat dissipation of the heat-generating components of the main core 4 and the power board 5, ensuring stable operation of the equipment in the explosion-proof environment of the mine. The adjustment component 206 is the power core of the heat dissipation mechanism 2. It realizes the action conversion through gear transmission and linkage mechanism. The rotation of the turntable 2061 drives the rotating shaft 2062 to rotate. The metal gear 2063 meshes with the half gear 2064 to realize the reciprocating sliding of the adjustment rod 2065. The sliding of the adjustment rod 2065 drives the telescopic plate 204 to move, increasing or decreasing the contact area between the heat dissipation plate 205 and the air, and strengthening or reducing natural heat dissipation. The rotating plate 203 is fixedly connected to the condenser 202, and the angle changes with the movement of the adjustment component 206 to optimize the heat dissipation effect.

[0019] Reference Figure 1 , Figure 2 and Figure 5The clamping mechanism 3 includes a second fixed frame 301, which is fixedly connected to the bottom of the inner wall of the main body 1. A connecting rod 302 is slidably connected to an adjacent side of the inner wall of the second fixed frame 301. A connecting plate 303 is fixedly connected to the top of the outer wall of the connecting rod 302. A pulley 304 is rotatably connected to the rear side of the outer wall of the second fixed frame 301. A drive assembly 305 is fixedly connected to the middle of the inner wall of the second fixed frame 301. The drive assembly 305 includes an electric push rod 3051, which is fixedly connected to the middle of the inner wall of the second fixed frame 301. A clamping frame 3052 is rotatably connected to the output end of the electric push rod 3051. A fixing block 3053 is fixedly connected to the top of the outer wall of the clamping frame 3052. A connecting shaft 3054 is rotatably connected to one side of the outer wall of the fixing block 3053. Specifically, the clamping mechanism 3 is based on the fixed frame 301. The clamping action is achieved through the linkage of various components. After the electric push rod 3051 is energized, the motor drives the screw to rotate, converting the rotational motion into linear motion, causing the output end to extend and retract. The clamping frame 3052 changes position accordingly. Together with the fixed block 3053 and the connecting shaft 3054, it provides flexibility and angle adjustment to adapt to the clamping of different objects. The connecting rod 302 and the connecting plate 303 help stabilize the clamping mechanism 3 and ensure process stability. The pulley 304 reduces frictional resistance, makes the mechanism run smoothly, reduces energy consumption, reduces wear, and extends service life.

[0020] Reference Figure 1 , Figure 2 and Figure 3 A slide groove 6 is fixedly connected to one side of the outer wall of the fixed bracket 2 301. A slide bar 7 is slidably connected to one side of the outer wall of the slide groove 2 6. A cover plate 8 is fixedly connected to the front side of the outer wall of the main body 1. A display plate 9 is installed in the middle of the inner wall of the cover plate 8. Multiple wiring holes 10 are opened on the left and right sides of the outer wall of the main body 1. A screw 11 is threadedly connected to the middle of the inner wall of the wiring hole 10. A handle 12 is fixedly connected to the top of the outer wall of the main body 1. Bolts 13 are threadedly connected to the left and right sides of the outer wall of the handle 12. Specifically, the slide groove 6 and slide bar 7 on the fixed frame 2 301 form a sliding connection structure. The slide bar 7 can slide flexibly in the slide groove 2 6, providing freedom of movement in a specific direction. It is convenient to adjust the position of the slide bar 7 according to actual work needs to achieve different functions. The cover plate 8 on the front side of the main body 1 not only protects the internal structure, but the display panel 9 installed in the middle of its inner wall can intuitively display the relevant data of the equipment operation, so that the operator can keep abreast of the equipment status and make corresponding adjustments. The wiring holes 10 on the left and right sides of the outer wall of the main body 1 are used to connect external lines to realize the electrical connection between the equipment and other equipment or power sources. The screw 11 is threaded in the middle of the inner wall of the wiring hole 10. By tightening the screw 11, the line inserted into the wiring hole 10 can be firmly fixed to prevent the line from loosening and affecting the normal operation of the equipment. The handle 12 on the top of the main body 1 makes it easy for the operator to operate the equipment. The bolts 13 on the left and right sides of the outer wall of the handle 12 can be adjusted according to the operator's usage habits and needs to ensure that the handle 12 is stable and does not shake during use, thereby improving the safety and convenience of operation.

[0021] Working principle: The heat dissipation mechanism 2 is installed on the left and right sides of the inner wall of the main body 1. Through the linkage of the mechanical structure and heat exchange elements, it realizes the dynamic heat dissipation adjustment of the heat-generating components of the main core 4 and the power board 5, ensuring the stable operation of the equipment in the explosion-proof environment of the mine. The adjustment component 206 is the power core of the heat dissipation mechanism 2. The action conversion is realized through gear transmission and linkage mechanism: the turntable 2061 rotates under the action of external force, driving the coaxial rotating shaft 2062 to rotate. The metal gear 2063 at the end of the rotating shaft 2062 meshes with the half gear 2064. The metal gear 2063 pushes the half gear 2064 to rotate counterclockwise. When the turntable 2061 rotates in the opposite direction, the half gear 2064 disengages from the metal gear 2063. The adjustment rod 2065 on the front side of the half gear 2064 slides back and forth along the slide groove 2066 when the half gear 2064 rotates. When the half gear 2064 stops rotating, the adjustment rod 2065 slides back and forth along the slide groove 2066. The adjustment rod 2065 remains in position within the slot or resets with the mechanism. The sliding motion of the adjustment rod 2065 drives the telescopic plate 204 via a mechanical connection: when the adjustment rod 2065 pushes forward, the telescopic plate 204 unfolds outward, moving the heat sink 205 away from the fixed frame 201, increasing the contact area with air and enhancing natural heat dissipation; when the adjustment rod 2065 resets backward, the telescopic plate 204 retracts, and the heat sink 205 approaches the inner wall of the main body 1, reducing space occupation. The rotating plate 203 is fixedly connected to the condenser 202, and its angle changes with the movement of the adjustment component 206: when the telescopic plate 204 unfolds, the rotating plate 203 causes the condenser 202 to tilt towards the main core 4, making the heat dissipation surface of the condenser 202 closer to the heat-generating components, absorbing core heat through refrigerant circulation; when the telescopic plate 204 retracts, the condenser 202 resets, reducing interference with the internal space of the main body. At this time, heat dissipation is mainly achieved through natural convection of the heat sink 205. The clamping mechanism 3 is based on the fixed frame 301 at the bottom of the inner wall of the main body 1. The electric push rod 3051 in the drive assembly 305 drives the screw to rotate, causing the output end to extend and retract. The clamping frame 3052, rotatably connected to the output end, changes position as the electric push rod 3051 extends and retracts. Because the clamping frame 3052 is fixedly connected to the fixed block 3053, and the fixed block 3053 is rotatably connected via the connecting shaft 3054, the clamping frame 3052 can flexibly adjust its angle during movement, better adapting to the clamping needs of objects of different shapes. When the clamping frame 3052 moves, the fixed frame... The connecting rod 302 and the connecting plate 303 on the top of the inner wall of the second fixed frame 301 slide on adjacent sides, which play an auxiliary and stabilizing role. The connecting rod 302 can slide inside the second fixed frame 301 and adjust its position according to the movement of the clamping frame 3052. It works with the connecting plate 303 to maintain the balance of the entire clamping mechanism 3 and ensure that the clamping process is stable and reliable. In addition, the pulley 304 rotatably connected to the rear side of the outer wall of the second fixed frame 301 can reduce frictional resistance by rolling when the clamping mechanism 3 moves as a whole or when the components move, making the mechanism run more smoothly, reducing energy consumption, reducing wear between components, and extending the service life of the clamping mechanism 3.

[0022] 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 main unit of a mine explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device, comprising a main body (1), characterized in that: The main body (1) has a heat dissipation mechanism (2) fixedly connected to the left and right sides of its inner wall. The heat dissipation mechanism (2) is used to adjust heat dissipation. The heat dissipation mechanism (2) has a clamping mechanism (3) fixedly connected to the rear side of its outer wall. The clamping mechanism (3) is used to clamp and fix the outer shell. The main body (1) has a main core (4) fixedly connected to the middle of its inner wall. The main core (4) has a power board (5) fixedly connected to the bottom of its outer wall. The heat dissipation mechanism (2) includes a first fixed frame (201), which is fixedly connected to the left and right sides of the inner wall of the main body (1). A condenser (202) is rotatably connected to the adjacent side of the outer wall of the first fixed frame (201). A rotating plate (203) is fixedly connected to one side of the outer wall of the condenser (202). A telescopic plate (204) is fixedly connected to the side of the outer wall of the first fixed frame (201) away from the other side. A heat dissipation plate (205) is fixedly connected to the other side of the telescopic plate (204). An adjustment component (206) is fixedly connected to the middle of the inner wall of the first fixed frame (201).

2. The main unit of the explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device for mining as described in claim 1, characterized in that: The adjustment assembly (206) includes a turntable (2061), which is rotatably connected to one side of the outer wall of the first fixed frame (201). A rotating shaft (2062) is fixedly connected to the left side of the outer wall of the turntable (2061), and a metal gear (2063) is fixedly connected to the other end of the rotating shaft (2062). A half gear (2064) is rotatably connected to the rear side of the inner wall of the first fixed frame (201), and the half gear (2064) meshes with the metal gear (2063). An adjustment rod (2065) is rotatably connected to the front side of the outer wall of the half gear (2064). A sliding groove (2066) is provided on one side of the inner wall of the first fixed frame (201), and the adjustment rod (2065) is slidably connected to one side of the inner wall of the sliding groove (2066).

3. The main unit of the explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device for mining as described in claim 1, characterized in that: The clamping mechanism (3) includes a second fixing frame (301), which is fixedly connected to the bottom of the inner wall of the main body (1). A connecting rod (302) is slidably connected to the adjacent side of the inner wall of the second fixing frame (301). A connecting plate (303) is fixedly connected to the top of the outer wall of the connecting rod (302). A pulley (304) is rotatably connected to the rear side of the outer wall of the second fixing frame (301). A drive assembly (305) is fixedly connected to the middle of the inner wall of the second fixing frame (301).

4. The main unit of the explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device for mining as described in claim 3, characterized in that: The drive assembly (305) includes an electric push rod (3051), which is fixedly connected to the middle of the inner wall of the second fixing frame (301). The output end of the electric push rod (3051) is rotatably connected to a clamping frame (3052). A fixing block (3053) is fixedly connected to the top of the outer wall of the clamping frame (3052). A connecting shaft (3054) is rotatably connected to one side of the outer wall of the fixing block (3053).

5. The main unit of the explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device for mining as described in claim 3, characterized in that: A slide groove 2 (6) is fixedly connected to one side of the outer wall of the fixed frame 2 (301), and a slide bar (7) is slidably connected to one side of the outer wall of the slide groove 2 (6).

6. The main unit of the explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device for mining as described in claim 1, characterized in that: A cover plate (8) is fixedly connected to the front side of the outer wall of the main body (1), and a display plate (9) is installed in the middle of the inner wall of the cover plate (8).

7. The main unit of the explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device for mining as described in claim 1, characterized in that: The outer wall of the main body (1) has multiple wiring holes (10) on the left and right sides, and screws (11) are threadedly connected to the middle of the inner wall of the wiring hole (10).

8. The main unit of the explosion-proof and intrinsically safe fiber optic grating belt conveyor protection device for mining as described in claim 1, characterized in that: A handle (12) is fixedly connected to the top of the outer wall of the main body (1), and bolts (13) are threadedly connected to the left and right sides of the outer wall of the handle (12).

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