A mine belt conveyor fault optical fiber monitoring device

Abstract

The utility model relates to a kind of mine belt conveyor fault optical fiber monitoring devices, involve the field of belt conveyor, it includes monitoring mechanism and mounting mechanism, monitoring mechanism is fixed on the rack of conveyor by mounting rack, monitoring mechanism includes optical fiber detection component and monitoring signal processing terminal, optical fiber component includes main line optical fiber, vibration optical fiber sensor and temperature optical fiber sensor, vibration optical fiber sensor is fixedly installed on mounting mechanism multiple, temperature optical fiber sensor is fixedly installed on mounting mechanism multiple, vibration optical fiber sensor and temperature optical fiber sensor are connected with main line optical fiber, main line optical fiber is connected with monitoring signal processing terminal signal.The utility model can improve the fault judgment accuracy of mine belt conveyor.

Description

Technical Field

[0001] This utility model relates to the technical field of belt conveyors, and in particular to a fiber optic fault monitoring device for mining belt conveyors. Background Technology

[0002] Mining belt conveyors are key equipment for material transportation in coal mines and other mining production processes, and their stable operation directly affects the safety and efficiency of the entire production process. However, in practical applications, due to harsh working environments and prolonged high-load operation, mining belt conveyors are prone to various malfunctions, such as belt misalignment, tearing, slippage, and overheating. These malfunctions not only affect production progress but may also lead to safety accidents, causing personal injury and property damage. Therefore, real-time and effective monitoring and fault early warning systems for mining belt conveyors are of paramount importance.

[0003] Currently, traditional monitoring methods mainly include manual inspection and sensor-based monitoring systems. Manual inspection is limited by manpower and time costs, making continuous monitoring difficult. While sensor-based monitoring systems can improve monitoring efficiency to some extent, they typically only monitor specific locations or types of faults, making it difficult to comprehensively cover all potential problem points along the entire conveyor.

[0004] In addition, traditional sensors are prone to electromagnetic interference from magnetic minerals when transmitting signals over long distances, which can lead to distorted monitoring data and affect the accuracy of fault diagnosis. Utility Model Content

[0005] To improve the accuracy of fault diagnosis for mining belt conveyors, this utility model provides a fiber optic fault monitoring device for mining belt conveyors.

[0006] This utility model provides a fiber optic fault monitoring device for mining belt conveyors, which adopts the following technical solution: A fault fiber optic monitoring device for a mining belt conveyor includes a monitoring mechanism and an installation mechanism. The monitoring mechanism is fixed to the conveyor frame via the installation frame. The monitoring mechanism includes a fiber optic detection component and a monitoring signal processing terminal. The fiber optic component includes a main fiber, a vibration fiber optic sensor, and a temperature fiber optic sensor. Multiple vibration fiber optic sensors and multiple temperature fiber optic sensors are fixedly installed on the installation mechanism. Both the vibration fiber optic sensor and the temperature fiber optic sensor are connected to the main fiber optic sensor, and the main fiber optic sensor is signal-connected to the monitoring signal processing terminal.

[0007] Preferably, the monitoring mechanism further includes a connector, which is fixedly installed on the mounting mechanism. Two adjacent main optical fibers are connected to each other through the connector, and the vibration fiber optic sensor and the temperature fiber optic sensor are both connected to the main optical fibers through the connector.

[0008] Preferably, the mounting mechanism includes a first mounting frame, which is fixedly connected to the frame of the conveyor, and the vibration fiber optic sensor and the temperature fiber optic sensor are fixedly mounted on the first mounting frame.

[0009] Preferably, the installation mechanism further includes a second mounting frame, which is fixedly connected to the inclined frames on both sides of the conveyor. The second mounting frame is installed opposite to the first mounting frame on both sides, and the first mounting frame and the second mounting frame are set at a certain angle.

[0010] Preferably, the first mounting bracket and the second mounting bracket are provided with a plurality of first mounting holes along the first mounting direction, and the first mounting bracket and the second mounting bracket are provided with a plurality of second mounting holes along the second mounting direction.

[0011] Preferably, the first mounting bracket and the second mounting bracket are rotatably connected to each other.

[0012] Preferably, the mounting mechanism further includes extension plates, two of which are disposed opposite to each other within the first mounting frame, with the first end of the extension plate slidably disposed with the first mounting frame and the second end of the extension plate rotatably connected to the second mounting frame.

[0013] Preferably, a protective corrugated tube is installed at the second end of the extension plate, and the optical fibers connecting the vibration optical fiber sensor and the temperature optical fiber sensor to the main optical fiber pass through the protective corrugated tube.

[0014] Preferably, both the first mounting bracket and the second mounting bracket are provided with multiple adhesive layers.

[0015] Preferably, a protective box is also fixedly installed on the first mounting bracket, and a buffer layer is provided inside the protective box. The connector is fixedly installed on the buffer layer inside the protective box.

[0016] In summary, this utility model has at least one of the following beneficial technical effects: 1. Temperature fiber optic sensors monitor the temperature at various points on the belt conveyor in real time. If an abnormal temperature is detected, the data is uploaded to the monitoring signal processing terminal. After ruling out environmental temperature errors, the temperature at the abnormal point is analyzed. Combined with vibration information, it is determined whether the conveyor has malfunctioned or is damaged, and an alarm is issued to remind staff to inspect or shut down the machine, thus improving the accuracy of fault diagnosis for mining belt conveyors.

[0017] 2. Modular connectors allow for the connection of vibration and temperature fiber optic sensors to the main fiber optic cable, and also enable the docking of adjacent main fiber optic cables. This avoids installing excessively long main fiber optic cables during installation, making the installation of the main fiber optic cable more convenient and reducing the probability of bending damage. Furthermore, in the event of damage to the main fiber optic cable or the fiber optic cable connecting the vibration and temperature sensors, repairs can be performed more easily and efficiently without requiring a complete shutdown.

[0018] 3. Depending on the different models of conveyors or the angle requirements of different positions of the conveyor mounting brackets, the distance between the two extension plates can be flexibly adjusted, thereby adjusting the distance between the second mounting brackets. Combined with the corresponding adjustment of the angle of the second mounting brackets, the monitoring device can be adapted to more models of conveyors. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main optical fiber distribution of the monitoring mechanism according to an embodiment of this utility model; Figure 2 This is a schematic view of the overall structure of an embodiment of this utility model; Figure 3 yes Figure 2 Axial side schematic diagram; Figure 4 yes Figure 2 A left-view diagram; Figure 5 yes Figure 4 Cross-sectional view along direction A; Figure 6 This is an assembly diagram showing the monitoring device installed on the conveyor.

[0020] Explanation of reference numerals in the attached drawings: 100, monitoring mechanism; 110, detection component; 111, main optical fiber; 112, vibration fiber optic sensor; 113, temperature fiber optic sensor; 120, monitoring signal processing terminal; 130, connector; 200, mounting mechanism; 210, first mounting bracket; 220, second mounting bracket; 230, first mounting hole; 240, second mounting hole; 250, extension plate; 260, protective corrugated pipe; 270, adhesive layer; 280, protective box; 290, buffer layer. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 To be continued Figure 6The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] This utility model discloses a fiber optic fault monitoring device for a mining belt conveyor. (Refer to...) Figures 1 to 6A fault fiber optic monitoring device for a mining belt conveyor mainly includes a monitoring mechanism 100 and an installation mechanism 200. The monitoring mechanism 100 is fixed on the frame of the conveyor via an installation frame. The monitoring mechanism 100 includes a fiber optic detection component 110 and a monitoring signal processing terminal 120. The fiber optic component includes a main fiber optic cable 111, a vibration fiber optic sensor 112, and a temperature fiber optic sensor 113. Multiple vibration fiber optic sensors 112 are fixedly installed on the installation mechanism 200, and multiple temperature fiber optic sensors 113 are fixedly installed on the installation mechanism 200. Both the vibration fiber optic sensor 112 and the temperature fiber optic sensor 113 are connected to the main fiber optic cable 111, and the main fiber optic cable 111 is signal-connected to the monitoring signal processing terminal 120.

[0027] The vibration fiber optic sensor 112 detects mechanical faults, such as idler roller breakage, while the temperature fiber optic sensor 113 provides early warning of bearing overheating, solving the problem of missed detection in traditional single-point monitoring. The vibration fiber optic sensor 112 monitors the vibration of the belt conveyor in real time. If abnormal vibration frequency is detected, the abnormal information is uploaded to the monitoring signal processing terminal 120. The terminal analyzes the abnormal vibration information; if the vibration returns to normal within a short time, it may be due to uneven distribution of ore on the belt, and the abnormal information is cleared. If the abnormal vibration persists for a long time, an alarm is issued to remind staff to inspect or shut down the machine. The temperature fiber optic sensor 113 monitors the temperature of the belt conveyor in real time. If abnormal temperature is detected, it is uploaded to the monitoring signal processing terminal 120. After ruling out environmental temperature errors, the temperature at the abnormal point is analyzed, and combined with the vibration information, it is determined whether the conveyor has malfunctioned or is damaged, issuing an alarm to remind staff to inspect or shut down the machine, thus improving the accuracy of fault diagnosis for mining belt conveyors.

[0028] The fiber optic detection component 110 can also be equipped with fiber optic detection sensors such as distance fiber optic sensors and offset laser sensors, which can be connected to the main fiber optic cable 111 to participate in the safety monitoring of the conveyor.

[0029] Reference Figures 1 to 5In some embodiments, the monitoring mechanism 100 further includes a connector 130, which is fixedly mounted on the mounting mechanism 200. Adjacent main optical fibers 111 are interconnected via the connector 130. The vibration fiber optic sensor 112 and the temperature fiber optic sensor 113 are both connected to the main optical fibers 111 via the connector 130. The modular connector 130 connects the vibration fiber optic sensor 112 and the temperature fiber optic sensor 113 to the main optical fibers 111, and also enables the docking of adjacent main optical fibers 111. This avoids installing excessively long main optical fibers 111 during installation, making installation of the main optical fibers 111 more convenient and reducing the probability of bending damage. Furthermore, if the main optical fiber 111 or the optical fiber connecting the vibration fiber optic sensor 112 and the temperature fiber optic sensor 113 is damaged, maintenance can be performed more conveniently without requiring a complete shutdown.

[0030] Reference Figure 2 , Figure 3 and Figure 6 In some embodiments, the mounting mechanism 200 includes a first mounting frame 210, which is fixedly connected to the frame of the conveyor. The vibration fiber optic sensor 112 and the temperature fiber optic sensor 113 are fixedly mounted on the first mounting frame 210. By using the first mounting frame 210 to fix the vibration fiber optic sensor 112, the temperature fiber optic sensor 113, and the main fiber optic cable 111, the monitoring device is fixedly mounted on the conveyor as a whole, simplifying the complex installation process and making the installation process more concise.

[0031] Reference Figure 2 , Figure 3 and Figure 6 In some embodiments, the mounting mechanism 200 further includes a second mounting frame 220, which is fixedly connected to the inclined frames on both sides of the conveyor. The second mounting frame 220 is mounted opposite to the first mounting frame 210 on both sides, with the first mounting frame 210 and the second mounting frame 220 set at a certain angle. The second mounting frame 220 is adapted to the bending angle of the fixed frame (frame) of the conveyor's conveyor rollers. Fixing the second mounting frame 220 to the fixed frame, and fixing the first mounting frame 210 to the fixed frame, allows for better contact and proximity with the detection points of the conveyor, enabling better reception of vibration or temperature signals and improving detection accuracy.

[0032] Reference Figure 2 and Figure 3In some embodiments, the first mounting bracket 210 and the second mounting bracket 220 are provided with a plurality of first mounting holes 230 along a first mounting direction, and the first mounting bracket 210 and the second mounting bracket 220 are provided with a plurality of second mounting holes 240 along a second mounting direction. The first mounting holes 230 facilitate the fixing of the first mounting bracket 210 and the second mounting bracket 220 to the bottom of the conveyor's fixed frame, so that the vibration fiber optic sensor 112 and the temperature fiber optic sensor 113 can be better aligned with or close to the detection points on the fixed frame. If there are other structures blocking the bottom of the fixed frame, the first mounting bracket 210 and the second mounting bracket 220 can be fixed to the side of the conveyor's fixed frame using the second mounting holes 240, so as to achieve flexible adjustment of the fixing position according to the actual industrial control.

[0033] Reference Figure 2 and Figure 3 In some embodiments, the first mounting bracket 210 and the second mounting bracket 220 are rotatably connected to each other. The angle between the first and second mounting brackets can be flexibly adjusted according to the different angle requirements of different conveyor models or conveyor mounting frames to facilitate fixing and adjustment.

[0034] See reference Figure 2 and Figure 3 In some embodiments, the mounting mechanism 200 further includes extension plates 250. Two extension plates 250 are disposed opposite each other within the first mounting frame 210. The first end of the extension plate 250 is slidably disposed with the mounting frame, and the second end of the extension plate 250 is rotatably connected to the second mounting frame 220. Depending on the angle requirements of different models of conveyors or different positions of conveyor mounting frames, the distance between the two extension plates 250 can be flexibly adjusted, thereby adjusting the distance between the second mounting frames 220. Combined with corresponding adjustments to the angle of the second mounting frames 220, the monitoring device can be adapted to more models of conveyors.

[0035] Reference Figure 5 In some embodiments, a protective corrugated tube 260 is installed at the second end of the extension plate 250. The optical fibers connecting the vibration fiber optic sensor 112 and the temperature fiber optic sensor 113 to the main optical fiber 111 are inserted inside the protective corrugated tube 260. During the rotation of the second mounting bracket 220, the protective corrugated tube 260 can protect the internal optical fibers, preventing them from bending and breaking, and also providing some protection for the optical fibers.

[0036] Reference Figures 2 to 4In some embodiments, both the first mounting bracket 210 and the second mounting bracket 220 are provided with multiple adhesive layers 270. When installing the first mounting bracket 210 and the second mounting bracket 220, the adhesive layers can be used to fix the first mounting bracket 210 or the second mounting bracket 220 to the fixed frame of the conveyor according to the corresponding installation position requirements, so as to pre-fix it, so as to facilitate the subsequent fixing of the first mounting bracket 210 or the second mounting bracket 220 by bolts or welding, which facilitates the installation process and prevents the sensor from shifting due to loose bolts.

[0037] Reference Figure 5 In some embodiments, a protective box 280 is also fixedly mounted on the first mounting bracket 210. A buffer layer 290 is provided inside the protective box 280, and the connector 130 is fixedly mounted on the buffer layer 290 inside the protective box 280. The buffer layer 290 can absorb some vibration, provide some protection and heat conduction for the connector 130, transferring the heat inside the connector 130 to the first mounting bracket 210 for heat dissipation. Simultaneously, it can also provide some dust protection for the connector 130, reducing the possibility of the wiring holes on the connector 130 becoming blocked.

[0038] The implementation principle of the optical fiber fault monitoring device for a mining belt conveyor according to this utility model embodiment is as follows: The device uses a temperature fiber optic sensor 113 to monitor the temperature at key points of the belt conveyor in real time. When an abnormal temperature is detected, the data is uploaded to the monitoring signal processing terminal 120. After eliminating environmental temperature errors, the abnormal points are precisely analyzed. Combined with vibration information, the device further confirms the presence of faults or damage points, thus issuing an alarm to remind personnel to take timely measures. Secondly, the device employs a modular connector 130 design, allowing the vibration fiber optic sensor 112 and temperature fiber optic sensor 113 to be easily connected to the main fiber optic cable 111 or to connect adjacent main fiber optic cables 111. This simplifies the installation process, reduces the risk of damage to the main fiber optic cable 111 due to bending, and facilitates localized maintenance without requiring a complete shutdown. Finally, depending on the different conveyor models and the angle requirements of the mounting brackets, the device can flexibly adjust the distance between the two extension plates 250 and the angle of the second mounting bracket 220, ensuring that the monitoring device can adapt to various conveyor models and enhancing the system's versatility and adaptability.

[0039] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A fiber optic fault monitoring device for a mining belt conveyor, characterized in that: The system includes a monitoring mechanism (100) and an installation mechanism (200). The monitoring mechanism (100) is fixed to the frame of the conveyor via the installation mechanism (200). The monitoring mechanism (100) includes an optical fiber detection component (110) and a monitoring signal processing terminal (120). The optical fiber detection component (110) includes a main optical fiber (111), a vibration optical fiber sensor (112), and a temperature optical fiber sensor (113). Multiple vibration optical fiber sensors (112) are fixedly installed on the installation mechanism (200), and multiple temperature optical fiber sensors (113) are fixedly installed on the installation mechanism (200). Both the vibration optical fiber sensor (112) and the temperature optical fiber sensor (113) are connected to the main optical fiber (111), and the main optical fiber (111) is signal-connected to the monitoring signal processing terminal (120). The monitoring mechanism (100) also includes a connector (130), which is fixedly installed on the installation mechanism (200). Two adjacent main optical fibers (111) are connected to each other through the connector (130). The vibration fiber optic sensor (112) and the temperature fiber optic sensor (113) are both connected to the main optical fiber (111) through the connector (130). The mounting mechanism (200) includes a first mounting frame (210), which is fixedly connected to the frame of the conveyor. The vibration fiber optic sensor (112) and the temperature fiber optic sensor (113) are fixedly mounted on the first mounting frame (210). The installation mechanism (200) further includes a second mounting frame (220), which is fixedly connected to the inclined frames on both sides of the conveyor. The second mounting frame (220) is installed opposite to the first mounting frame (210) on both sides, and the first mounting frame (210) and the second mounting frame (220) are set at a certain angle. The first mounting bracket (210) and the second mounting bracket (220) are rotatably connected to each other.

2. The fiber optic fault monitoring device for mining belt conveyors according to claim 1, characterized in that: The first mounting bracket (210) and the second mounting bracket (220) are provided with a plurality of first mounting holes (230) along the first mounting direction, and the first mounting bracket (210) and the second mounting bracket (220) are provided with a plurality of second mounting holes (240) along the second mounting direction.

3. The fiber optic fault monitoring device for mining belt conveyors according to claim 1, characterized in that: The mounting mechanism (200) further includes an extension plate (250), two extension plates (250) are disposed opposite to each other in the first mounting frame (210), the first end of the extension plate (250) is slidably disposed with the first mounting frame (210), and the second end of the extension plate (250) is rotatably connected to the second mounting frame (220).

4. The fiber optic fault monitoring device for mining belt conveyors according to claim 3, characterized in that: The second end of the extension plate (250) is equipped with a protective corrugated tube (260), which is used to connect the vibration fiber optic sensor (112) and the temperature fiber optic sensor (113) to the main fiber optic cable (111). The fiber optic cable passes through the protective corrugated tube (260).

5. The fiber optic fault monitoring device for mining belt conveyors according to claim 1, characterized in that: Both the first mounting bracket (210) and the second mounting bracket (220) are provided with multiple adhesive layers (270).

6. The fiber optic fault monitoring device for mining belt conveyors according to claim 1, characterized in that: A protective box (280) is also fixedly installed on the first mounting bracket (210). A buffer layer (290) is provided inside the protective box (280), and the connector (130) is fixedly installed on the buffer layer inside the protective box (280).

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