Coal mine belt conveyor comprehensive monitoring and protection switching device and belt conveyor

Abstract

The utility model relates to the field, especially to a kind of coal mine with belt conveyor comprehensive monitoring protection switching device and belt conveyor, including control template, the control template includes PCB board, several groups of upper pin, several groups of lower pin, several groups of transverse terminal and several groups of vertical terminal are provided on the PCB board;The transverse terminal is connected to power supply;The vertical terminal is connected speed monitoring module, tear monitoring module, smoke monitoring module or TOF monitoring probe module respectively;Lower pin and upper pin are as communication port connection only signal output speed monitoring module, tear monitoring module, smoke monitoring module or TOF monitoring probe module.This device realizes multi-module integration, efficient signal transmission and reliable power management, solves the problem of poor integration and compatibility of the monitoring system in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of conveyor protection technology, specifically to a comprehensive monitoring and protection transfer device for a belt conveyor used in coal mines and the belt conveyor itself. Background Technology

[0002] As a key pillar of the energy system, the coal mining industry plays an irreplaceable role in ensuring energy security and promoting stable economic growth. Coal, as a major energy source, comprises a vast and complex industrial system involving mining, production, transportation, and processing. Within this system, efficient coal transportation is one of the core elements ensuring the smooth operation of the entire industry.

[0003] As a key piece of equipment for coal transportation, belt conveyors for coal mines have played a crucial role in coal production since their inception. With their unique continuous transport method, they break through the limitations of traditional intermittent transport, enabling the efficient flow of coal from the mining site to processing areas, storage areas, and transportation hubs. This transport mode not only greatly improves the efficiency of coal transportation and reduces labor costs and transport time, but also provides strong support for the large-scale and intensive production of coal mines. With the continuous advancement of coal mining technology and the continuous expansion of mining scale, the performance requirements for belt conveyors for coal mines are becoming increasingly stringent. On the one hand, modern coal mining depths are constantly increasing, and geological conditions are becoming increasingly complex, requiring belt conveyors to have stronger adaptability and be able to operate stably in harsh environments such as high temperature, high humidity, high dust, and variable geological structures. On the other hand, to meet the needs of large-scale mining, belt conveyors need to handle larger conveying volumes and longer conveying distances, which poses higher challenges to the equipment's load-bearing capacity, structural strength, and power system. At the same time, the safety of coal mine production remains paramount. As a crucial component in coal mine production, the operational status of belt conveyors directly impacts the safety and stability of the entire production process. A malfunction in a belt conveyor can not only disrupt coal transportation and affect production progress but also potentially trigger a series of safety accidents, such as fires caused by material accumulation, equipment damage due to conveyor belt breakage, and personal injury. Therefore, ensuring the safe and reliable operation of belt conveyors in coal mines is of paramount importance for guaranteeing smooth coal production, protecting miners' lives, and safeguarding energy assets.

[0004] However, in actual use, this equipment often faces numerous challenges, easily encountering problems such as conveyor belt slippage, misalignment, tearing, or motor overheating and overload. Conveyor belt slippage reduces material conveying efficiency, misalignment can cause equipment damage or even safety accidents, and tearing directly renders the conveyor belt unusable. Motor overheating and overload not only affect equipment lifespan but can also lead to serious consequences such as fires. Therefore, there is an urgent need for a highly efficient and reliable monitoring and protection module. This module should be able to monitor the conveyor's operating status in real time, accurately detect key parameters such as conveyor belt speed, position, and temperature, as well as motor current and temperature. Once an abnormality is detected, it should immediately issue an alarm and take corresponding protective measures to ensure the safe and stable operation of the conveyor, providing strong support for coal mine production, thereby achieving effective monitoring and protection of the conveyor belt.

[0005] Existing systems for monitoring and protecting belt conveyors in coal mines typically consist of multiple independent subsystems, such as speed monitoring, temperature monitoring, and current monitoring. These subsystems lack effective data sharing and collaborative mechanisms, have low integration and compatibility, and are difficult to form an organic whole, thus limiting the application of intelligent monitoring systems in conveyor belt protection responses. Utility Model Content

[0006] To address the issues of poor integration and compatibility in existing monitoring systems, this utility model provides a comprehensive monitoring and protection transfer device for belt conveyors used in coal mines, as well as the belt conveyor itself.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a comprehensive monitoring and protection transfer device for a belt conveyor in a coal mine, including a control template. The control template includes a printed circuit board (PCB), and the PCB is provided with several sets of upper pins, several sets of lower pins, several sets of horizontal terminals and several sets of vertical terminals. The horizontally positioned terminal block is connected to an external power supply. The vertically arranged terminals are respectively connected to the speed monitoring module, tear monitoring module, smoke monitoring module or TOF monitoring probe module; Both the lower and upper pins serve as communication ports for connecting to speed monitoring modules, tear monitoring modules, smoke monitoring modules, or TOF monitoring probe modules that only output signals.

[0008] Optionally, it also includes a protective shell, which includes an upper protective plate and a lower protective plate, located on both sides of the control template, for protecting the control template.

[0009] Optionally, the upper protection plate is provided with a number of interface slots that mate with the vertically placed terminals at the corresponding positions.

[0010] Optionally, a first pin slot is provided on the lower protection board at the position corresponding to the lower pin, and the lower pin passes through the first pin slot and is partially exposed on the outside of the lower protection board.

[0011] Optionally, a second pin slot is provided on the upper protection board at the position corresponding to the upper pin, and the upper pin passes through the second pin slot, partially exposed on the outside of the upper protection board.

[0012] Optionally, the PCB board, the upper protection board, and the lower protection board are provided with a number of connection holes, and columnar connectors are provided in the connection holes to connect the PCB board, the upper protection board, and the lower protection board into a whole.

[0013] Optionally, the PCB board is also provided with an adjustment push switch, which is connected to the vertical terminal block and used to control the on / off of the current in the vertical terminal block.

[0014] Optionally, the PCB board is also provided with a toggle switch, which is connected to a horizontal terminal block and used to control the current flow to and from the horizontal terminal block.

[0015] Optionally, indicator lights are also provided on the PCB board.

[0016] This utility model also provides a belt conveyor for coal mines, including the aforementioned integrated monitoring and protection transfer device for belt conveyors for coal mines.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This utility model provides a comprehensive monitoring and protection adapter for belt conveyors used in coal mines, including a control module comprising a PCB board. The PCB board has several sets of upper pins, several sets of lower pins, several sets of horizontal terminals, and several sets of vertical terminals. The horizontal terminals are connected to an external power supply. The vertical terminals are connected to a speed monitoring module, a tear monitoring module, a smoke monitoring module, or a TOF (Time-of-Flight) monitoring probe module, respectively. The lower and upper pins serve as communication ports for connecting to speed monitoring modules, tear monitoring modules, smoke monitoring modules, or TOF monitoring probe modules that only output signals. This device, through optimized pin and terminal design on the PCB board, allows simultaneous connection to smoke monitoring, speed monitoring, tear monitoring, and TOF (Time-of-Flight) monitoring probe modules, avoiding the risk of misconnection caused by mixed interfaces in traditional adapters. It achieves multi-module integration, efficient signal transmission, and reliable power management, significantly improving the monitoring and protection capabilities of coal mine equipment. The use of independent external power supplies for the horizontal terminals provides current input to each monitoring module, reducing wiring complexity. This transfer device features a simple and rationally designed structure, providing an effective data sharing and collaborative working mechanism for independent subsystems. It enhances integration and compatibility, and can connect to various external monitoring modules, such as temperature monitoring, smoke monitoring, and speed monitoring modules, to prevent accidents such as fires, slippage, coal pile-up, tearing, and overheating during belt conveyor operation. This ensures the continuity of the coal mine transportation system and the safety of personnel and equipment. Simultaneously, it can upload operational data to the coal mine monitoring system, supporting remote real-time viewing and historical data analysis. This reduces downtime caused by malfunctions, improves transportation efficiency, lowers the risk of accidents such as fires and personnel casualties, and optimizes equipment lifespan.

[0018] It also includes a protective shell, which includes an upper protective plate and a lower protective plate. The upper and lower protective plates are located on both sides of the control template to protect the control template. The protective shell adopts an upper and lower enclosing structure, which is more conducive to heat dissipation of the PCB board.

[0019] The upper protective plate has several interface slots corresponding to the vertically placed terminals. The slots are designed to match the shape of the vertically placed terminals (e.g., rectangular, trapezoidal, or irregular), facilitating terminal alignment during insertion and preventing poor contact due to human error. Asymmetrical protrusions or grooves are provided at the edges of the interface slots to cooperate with the foolproof structure on the terminals, preventing reverse insertion or mixing of terminals of different specifications.

[0020] The lower protection board has a first pin slot corresponding to the lower pin position, through which the lower pin passes and is partially exposed on the outside of the lower protection board. The upper protection board has a second pin slot corresponding to the upper pin position, through which the upper pin passes and is partially exposed on the outside of the upper protection board. The independent pin slots optimize pin connections and ensure electrical connection reliability and protection performance.

[0021] The PCB board, upper protective board, and lower protective board are provided with a number of connection holes. Columnar connectors are installed in the connection holes to connect the PCB board, upper protective board, and lower protective board into a whole, achieving effective connection between the protective shell and the control template while ensuring heat dissipation of the PCB board.

[0022] The PCB board is also equipped with an adjustment push switch, which is connected to the vertical terminal block and used to control the on / off state of the current in the vertical terminal block.

[0023] The PCB board is also equipped with a toggle switch, which is connected to a horizontal terminal block and used to control the current flow to and from the horizontal terminal block.

[0024] The PCB board is also equipped with indicator lights to indicate power connection.

[0025] This utility model also provides a belt conveyor for coal mines, including the aforementioned integrated monitoring and protection transfer device for coal mine belt conveyors. This belt conveyor for coal mines features comprehensive protection functions, high reliability, intelligent control, centralized monitoring and networking capabilities, ease of operation, and energy-saving effects. It can effectively extend the service life of equipment, reduce maintenance and investment costs, ensure the continuity of the coal mine transportation system and the safety of personnel and equipment, and improve transportation efficiency. Attached Figure Description

[0026] Fig. 1 This is a schematic diagram of the overall structure of a comprehensive monitoring and protection transfer device for a belt conveyor in a coal mine, according to the present invention.

[0027] Fig. 2 This is a schematic diagram of the protective shell structure of a comprehensive monitoring and protection transfer device for a belt conveyor in a coal mine, according to the present invention.

[0028] Fig. 3 This is a PCB board structure diagram of a comprehensive monitoring and protection transfer device for a belt conveyor in a coal mine, according to this utility model.

[0029] Among them, 1-protective shell, 2-control template, 11-upper protection board, 12-lower protection board, 13-interface slot, 14-first pin slot, 15-second pin slot, 21-PCB board, 22-upper pin, 23-vertical terminal block, 24-horizontal terminal block, 25-lower pin, 26-indicator light, 27-press switch, 28-toggle switch. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The present invention will be further described in detail below with reference to specific embodiments. The description is for explanation and not limitation of the present invention.

[0037] See Figs. 1 to 3 This utility model discloses a comprehensive monitoring and protection transfer device for a belt conveyor in a coal mine, including a protective shell 1 and a control template 2; The protective shell 1 includes an upper protective plate 11 and a lower protective plate 12, which are located on both sides of the control template 2 to protect the control template 2. The protective shell 1 has an upper and lower enclosure design, while the control template 2 is exposed on all sides, which can effectively protect the control template 2 and facilitate heat dissipation. The top of the upper protective plate 11 has several sets of through interface slots 13 and several sets of through second pin slots 15, and the top of the lower protective plate 12 has several sets of through first pin slots 14. The control template 2 includes a PCB board 21, on which a plurality of upper pins 22, a plurality of lower pins 25, a plurality of horizontal terminals 24 and a plurality of vertical terminals 23 are provided. The horizontal terminal 24 is connected to an external power supply; The longitudinally positioned terminals 23 are respectively connected to the speed monitoring module, tear monitoring module, smoke monitoring module, or TOF monitoring probe module; the infrared sensor or thermocouple detects the temperature of the conveyor belt, rollers, and idlers to prevent fires caused by friction overheating; the smoke monitoring module detects the smoke concentration near the conveyor belt to provide early warning of fire risks; the speed monitoring module monitors abnormal belt speeds such as overspeeding and slippage to prevent material accumulation or loss of control; the coal pile monitoring module detects the coal pile situation in the coal bunker or transfer point through the coal level sensor to avoid coal spillage that could cause system jamming; the tear monitoring module detects abnormal vibrations of the conveyor belt through the pressure sensor or sound waves to provide early warning of tear risks. Temperature monitoring modules are applied to conveyor belts, rollers, and idlers. Utilizing non-contact temperature measurement, they can detect the internal temperature of coal piles through dust, achieving comprehensive coverage with an array-like temperature measurement system. They are particularly suitable for monitoring bearings, belts, and other parts prone to frictional heat, preventing smoldering fires. The smoke monitoring module is an intrinsically safe smoke sensor for mining. When the smoke concentration reaches 5%obs / m³, the response time is ≤20s. It is mainly used to monitor fire accidents in coal mines caused by mechanical friction, cable overheating, and spontaneous combustion of coal seams. It can be connected to power-off devices and audible and visual alarms for alarm and power-off control, and can be used in conjunction with various production and safety monitoring systems. The TOF monitoring probe module: TOF sensors can be installed at the entrance or top of conveyor belts or material storage areas, calculating the volume of objects by scanning their three-dimensional shape. This is of great significance for material management in coal mines, enabling rapid and accurate material metering, preventing material accumulation or shortages, and allowing real-time monitoring of obstacles near the conveyor belt, such as large pieces of coal, tools, or other equipment. Once an obstacle is detected, the system can immediately issue a warning signal so that operators can take timely measures to prevent material accumulation or equipment collisions. It can also be used to monitor the operating status of equipment such as conveyor belts and rollers. For example, by measuring changes in the distance between the conveyor belt and rollers, it can determine whether the conveyor belt is slipping or misaligning. Furthermore, combined with data from other sensors (such as a temperature monitoring module), it can also prevent fires caused by overheating due to friction or equipment malfunction. The temperature monitoring module is the Hongke MU-Thermocouple CAN / CAN FD series, the speed monitoring module is the GSC6-SC intrinsically safe speed sensor for mining, the tear monitoring module is the YT-ZLB / FB-T4 tear sensor, the smoke monitoring module is the GQQ0.1 intrinsically safe smoke sensor for mining, and the TOF monitoring probe module is the STMicroelectronics VL53L4ED. Both the lower pin 25 and the upper pin 22 serve as communication ports to connect to a speed monitoring module, tear monitoring module, smoke monitoring module, or TOF monitoring probe module that only outputs signals.

[0038] The interface slot 13 corresponds one-to-one with the vertical terminal block 23, the first pin slot 14 corresponds one-to-one with the lower pin 25, and the second pin slot 15 corresponds one-to-one with the upper pin 22. A through-hole is provided on the surface of the PCB board 21. The upper protective board 11 and the lower protective board 12 are fixed together by a columnar connector. The columnar connector passes through the hole and is fixedly connected to the PCB board 21, thereby achieving a fixed connection between the protective shell 1 and the control template 2. When installing external modules, the upper protection plate 11 and the lower protection plate 12 can protect the entire control module 2. The design of the interface slot 13 can prevent the module inserted in the vertical terminal block 23 from becoming loose and falling off. The PCB board 21 is also equipped with an adjustment push switch 27, a toggle switch 28, and an indicator light 26. The adjustment push switch 27 is connected to the vertical terminal block 23 to control the current flow to the vertical terminal block 23. The toggle switch 28 is connected to the horizontal terminal block 24 to control the current flow to the horizontal terminal block 24. The indicator light 26 serves as a notification when the entire system is powered on. The protective shell 1 with its top and bottom surround design effectively improves the overall heat dissipation efficiency. The exposed design of the control panel 2 around its perimeter is more conducive to ventilation and does not obstruct the adjustment of the push switch 27 and the toggle switch 28.

[0039] This utility model also provides a belt conveyor for coal mines, including the aforementioned integrated monitoring and protection transfer device for coal mine belt conveyors. This belt conveyor for coal mines features comprehensive protection functions, high reliability, intelligent control, centralized monitoring and networking capabilities, ease of operation, and energy-saving effects. It can effectively extend the service life of equipment, reduce maintenance and investment costs, ensure the continuity of the coal mine transportation system and the safety of personnel and equipment, and improve transportation efficiency.

[0040] In summary, this utility model provides a comprehensive monitoring and protection adapter for belt conveyors used in coal mines, as well as the belt conveyor itself. This device, through optimized pin and terminal block design on the PCB board 21, allows simultaneous connection to smoke monitoring, speed monitoring, tear monitoring, and TOF monitoring probe modules, avoiding the risk of misconnection caused by mixed interfaces in traditional adapters. It achieves multi-module integration, efficient signal transmission, and reliable power management, significantly improving the monitoring and protection capabilities of coal mine equipment. The use of horizontally positioned terminals for independent external power supply provides current input to each monitoring module, reducing wiring complexity. The adapter has a simple and rational structure, providing an effective data sharing and collaborative working mechanism for independent subsystems, improving integration and compatibility.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the technical solution of the present utility model in any way. Those skilled in the art should understand that, without departing from the spirit and principles of the present utility model, the technical solution can be modified and replaced in several simple ways, and these modifications and replacements are all within the scope of protection covered by the claims.

Claims

1. A comprehensive monitoring and protection switching device for a belt conveyor in a coal mine, characterized in that, The control template includes a PCB board, which is provided with several sets of upper pins, several sets of lower pins, several sets of horizontal terminals and several sets of vertical terminals. The horizontally positioned terminal block is connected to an external power supply. The vertically arranged terminals are respectively connected to the speed monitoring module, tear monitoring module, smoke monitoring module or TOF monitoring probe module; Both the lower and upper pins serve as communication ports for connecting to speed monitoring modules, tear monitoring modules, smoke monitoring modules, or TOF monitoring probe modules that only output signals.

2. The integrated monitoring and protection transfer device for belt conveyors in coal mines according to claim 1, characterized in that, It also includes a protective shell, which comprises an upper protective plate and a lower protective plate, located on both sides of the control template, for the purpose of protecting the control template.

3. The integrated monitoring and protection transfer device for belt conveyors in coal mines according to claim 2, characterized in that, The upper protective plate has several interface slots that mate with the vertically placed terminals at the corresponding positions.

4. The integrated monitoring and protection transfer device for belt conveyors in coal mines according to claim 2, characterized in that, The lower protection board has a first pin slot at the position corresponding to the lower pin, and the lower pin passes through the first pin slot, partially exposed on the outside of the lower protection board.

5. The integrated monitoring and protection transfer device for belt conveyors in coal mines according to claim 2, characterized in that, The upper protection board has a second pin slot at the position corresponding to the upper pin, and the upper pin passes through the second pin slot, partially exposed on the outside of the upper protection board.

6. The integrated monitoring and protection transfer device for belt conveyors in coal mines according to claim 2, characterized in that, The PCB board, upper protection board, and lower protection board are provided with a number of connection holes, and columnar connectors are provided in the connection holes to connect the PCB board, upper protection board, and lower protection board into a whole.

7. The integrated monitoring and protection transfer device for belt conveyors in coal mines according to claim 1, characterized in that, The PCB board is also equipped with an adjustment push switch, which is connected to the vertical terminal block and is used to control the on / off state of the current in the vertical terminal block.

8. The integrated monitoring and protection transfer device for belt conveyors in coal mines according to claim 1, characterized in that, The PCB board is also equipped with a toggle switch, which is connected to a horizontal terminal block and is used to control the current flow to and from the horizontal terminal block.

9. The integrated monitoring and protection transfer device for belt conveyors in coal mines according to claim 1, characterized in that, Indicator lights are also provided on the PCB board.

10. A belt conveyor for coal mines, characterized in that, Includes the integrated monitoring and protection transfer device for belt conveyors used in coal mines as described in any one of claims 1-9.

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