Intelligent tensioning and deviation correction linkage device for coal mine belt conveyor

Abstract

The present application provides a kind of coal mine belt conveyor intelligent tensioning and running deviation linkage correction device, including rack, conveying belt, tensioning adjusting mechanism, belt dynamic deviation rectifier and induction processing system;Tensioning adjusting mechanism is located below rack, conveying belt is sleeved in rack, and tensioning adjusting mechanism includes movable tensioning roller, and the inside of conveying belt passes through tensioning roller setting;Belt dynamic deviation rectifier is located at the edge of rack and is in contact with the two sides of conveying belt;Induction processing system is located outside rack, induction processing system and belt dynamic deviation rectifier, tensioning adjusting mechanism are electrically connected, to offset and tensioning of conveying belt are cooperatively controlled.The present application realizes the real-time fusion of belt deviation detection and tension detection by setting tensioning adjusting mechanism, induction processing system and belt dynamic deviation rectifier, and intelligent cooperative control of tensioning adjustment and deviation rectification action, effectively solves the system shock problem caused by independent operation of tensioning and deviation rectification in traditional equipment.

Description

Technical Field

[0001] This invention relates to the field of coal mine machinery automation technology, specifically to an intelligent tensioning and misalignment correction device for coal mine belt conveyors. Background Technology

[0002] Coal mine belt conveyors (also known as conveyors) are key equipment used for the continuous transportation of coal and other materials during coal mining, production, transfer, and processing. They are widely used in underground and surface operations in coal mines, and are also suitable for production and processing scenarios of other minerals. In major coal-producing areas such as Shanxi, Inner Mongolia, and Xinjiang in my country, this equipment is widely used due to its large transport capacity, strong load-bearing capacity, and adaptability to complex environments.

[0003] However, the traditional operation and maintenance model has significant drawbacks. For example, the tension control is lagging, it relies on regular manual inspections, and it cannot respond to belt elastic deformation in real time, which can easily lead to belt breakage accidents. At the same time, the system operates in a fragmented manner, with the tensioning and correction equipment controlled independently. The asynchronous adjustment can actually exacerbate system oscillations. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] To achieve the above objectives, this invention proposes an intelligent tensioning and deviation correction device for coal mine belt conveyors, comprising a frame, a conveyor belt, a tensioning adjustment mechanism, a belt dynamic correction device, and a sensing and processing system.

[0006] The tension adjustment mechanism is located below the frame, the conveyor belt is sleeved on the frame, and the tension adjustment mechanism includes a movable tension roller, with the inner side of the conveyor belt passing through the tension roller. The belt dynamic correction device is located on both sides of the frame and abuts against both sides of the conveyor belt; The sensing and processing system is located outside the frame and is electrically connected to the belt dynamic correction device and the tension adjustment mechanism to coordinate and control the offset and tension of the conveyor belt.

[0007] By incorporating a tension adjustment mechanism, a sensing and processing system, and a belt dynamic correction device, this invention achieves real-time fusion of belt deviation detection and tension detection, as well as intelligent coordinated control of tension adjustment and correction actions, effectively solving the system oscillation problem caused by the independent operation of tensioning and correction in traditional equipment.

[0008] Optionally, the tension adjustment mechanism further includes an adjustment frame, a hydraulic lift, a movable block, a limit guide plate, a lifting frame, and rollers; The adjustment frame is fixedly installed at the bottom of the machine frame; Two hydraulic lifts are provided, and the two hydraulic lifts are symmetrically arranged in the adjustment frame. Each hydraulic lift has a movable block fixedly connected to its output end. The adjustment frame is provided with a movable slot for the movable block to move with the output of the hydraulic lift. The lifting frame is fixedly installed between the two movable blocks; The tensioning roller is mounted on the lifting frame via a roller shaft and contacts the inside of the conveyor belt.

[0009] Furthermore, each of the movable blocks is provided with a limiting guide plate, and the inner wall of the adjusting frame is provided with a sliding groove that is slidably connected to the limiting guide plate. The sliding direction of the sliding groove is set in the same direction as the output direction of the hydraulic lift.

[0010] Furthermore, the sensing processing system includes a central controller, a deviation sensing module, a tension monitoring module, and a wireless transmission module; A central controller is located at the bottom of the frame and on the right side of the adjustment frame; The misalignment sensing module is located on both sides of the conveyor belt; The tension monitoring module is embedded inside the tensioning roller; One end of the central controller is equipped with a wireless transmission module; Both of the hydraulic lifts are electrically connected to the central controller via wires.

[0011] Furthermore, the central controller is a programmable logic controller.

[0012] Furthermore, the deviation sensing module is a through-beam photoelectric sensor, and multiple pairs of deviation sensing modules are provided, with each pair of deviation sensing modules symmetrically arranged on both sides of the frame edge. Furthermore, the number of the belt dynamic correction device and the belt misalignment sensing module are the same, and each belt dynamic correction device and the belt misalignment sensing module are arranged adjacent to each other in a one-to-one correspondence.

[0013] Furthermore, the tension monitoring module is a pressure sensor.

[0014] Furthermore, the wireless transmission module is an intrinsically safe ZigBee module.

[0015] Furthermore, the central controller is electrically connected to the belt misalignment sensing module, the tension monitoring module, and the belt dynamic correction device via wires or wireless communication.

[0016] Furthermore, two limiting guide rollers are provided inside the frame and above the adjusting frame, and both limiting guide rollers are in contact with the inner side of the conveyor belt.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of an intelligent tensioning and misalignment correction device for a coal mine belt conveyor according to the present invention. Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a front sectional view of the structure of an intelligent tensioning and misalignment correction device for a coal mine belt conveyor according to the present invention. Figure 4 This is a right sectional view of the structure of an intelligent tensioning and misalignment correction device for a coal mine belt conveyor according to the present invention. Figure 5 This is a system operation block diagram of an intelligent tensioning and misalignment correction device for a coal mine belt conveyor according to the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Frame; 2. Conveyor belt; 3. Tension adjustment mechanism; 301. Adjustment frame; 302. Hydraulic lift; 303. Movable block; 304. Limit guide plate; 305. Lifting frame; 306. Roller; 307. Tension roller; 4. Belt dynamic correction device; 5. Central controller; 6. Belt deviation sensing module; 7. Tension monitoring module; 8. Wireless transmission module; 9. Limit guide roller. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] This invention proposes an intelligent tensioning and misalignment linkage correction device for coal mine belt conveyors, as described below. Figures 1 to 5 Please provide a detailed explanation.

[0022] A smart tensioning and deviation correction device for a coal mine belt conveyor includes a frame 1, a conveyor belt 2, a tensioning adjustment mechanism 3, a belt dynamic correction device 4, and a sensing and processing system. The tension adjustment mechanism 3 is located below the frame 1, and the conveyor belt 2 is sleeved on the frame 1. The tension adjustment mechanism 3 includes a movable tension roller 307, and the inner side of the conveyor belt 2 is provided through the tension roller 307. When the tension roller 307 moves in the vertical direction, its vertical displacement will change the wrap angle of the conveyor belt 2 and the contact pressure of the tension roller 307 on the conveyor belt 2, thereby adjusting the tension of the conveyor belt 2 in real time. The belt dynamic correction device 4 is set on both sides of the frame 1 and abuts against both sides of the conveyor belt 2; the belt dynamic correction device 4 is used to apply lateral force to the conveyor belt 2. When the conveyor belt 2 deviates from its position, the magnitude and direction of the correction force are adjusted to push the conveyor belt 2 back to the normal operating trajectory. The sensing and processing system is located outside the frame 1. The sensing and processing system is electrically connected to the belt dynamic correction device 4 and the tension adjustment mechanism 3 to coordinate and control the offset and tension of the conveyor belt 2.

[0023] By setting up a tension adjustment mechanism 3, a sensing processing system, and a belt dynamic correction device 4, the present invention realizes the real-time fusion of belt deviation detection and tension detection, as well as the intelligent coordinated control of tension adjustment and correction actions, effectively solving the system oscillation problem caused by the independent operation of tension and correction in traditional equipment.

[0024] Specifically, the sensing and processing system continuously receives real-time signals from the belt misalignment sensing module 6 and the tension monitoring module 7, comparing and calculating the received real-time data with preset values. Once the tension of the conveyor belt 2 deviates from the threshold or misalignment occurs, the sensing and processing system immediately sends precise coordinated control commands to the tension adjustment mechanism 3 and the belt dynamic correction device 4 for correction. This efficient closed-loop control achieves unmanned automatic control of the entire process, greatly reducing the need for manual inspection and adjustment. Simultaneously, it processes data quickly, provides precise control commands, and can promptly suppress misalignment and tension fluctuations, preventing problems from escalating.

[0025] In some embodiments, the tension adjustment mechanism 3 further includes an adjustment frame 301, a hydraulic lift 302, a movable block 303, a limiting guide plate 304, a lifting frame 305, and a roller 306; The adjusting frame 301 is fixedly installed at the bottom of the frame 1, providing a stable support foundation for the entire tension adjusting mechanism 3, ensuring that the adjusting frame 301 does not shift or deform during the heavy-load operation of the transmission belt and the operation of the hydraulic lift 302; Two hydraulic lifts 302 are provided, and the two hydraulic lifts 302 are symmetrically arranged in the adjusting frame 301. Each hydraulic lift 302 has a movable block 303 fixedly connected to its output end. The adjusting frame 301 is provided with a movable groove for the movable block 303 to move with the output of the hydraulic lift 302. The lifting frame 305 is fixedly installed between two movable blocks 303; The tension roller 307 is mounted on the lifting frame 305 via the roller 306 and contacts the inner side of the conveyor belt 2.

[0026] It should be noted that the symmetrical arrangement of the dual hydraulic lifting platform 302 ensures that the lifting force is applied symmetrically from left to right, avoiding the uneven load and jamming that may be caused by applying force at a single point. This ensures that the tension roller 307 is raised and lowered synchronously at both ends, preventing the tension roller 307 from tilting due to asynchronous raising and lowering at both ends, which could lead to belt misalignment. Hydraulic drive has the advantages of large output torque, fast response speed and precise displacement control. Compared with traditional screw tensioning or counterweight tensioning methods, hydraulic lift 302 can complete the tension adjustment action within a few seconds, meeting the requirements of real-time response. Meanwhile, the roller 306 allows the tension roller 307 to rotate flexibly with the conveyor belt 2 when in contact with it, reducing wear caused by sliding friction and extending the belt's service life. By precisely controlling the extension and retraction of the hydraulic lift 302, the tension roller 307 can be raised and lowered with millimeter-level precision, ensuring the belt tension is always within the optimal range. This avoids excessive tension leading to overstretching and accelerated aging, and also prevents slippage and misalignment due to excessive looseness. The movable groove provides a vertical movement channel and limit for the movable block 303, ensuring its movement path is strictly controllable and preventing lateral deviation.

[0027] In some embodiments, each movable block 303 is provided with a limiting guide plate 304, and the inner wall of the adjusting frame is provided with a sliding groove that is slidably connected to the limiting guide plate 304. The sliding direction of the sliding groove is set in the same way as the output direction of the hydraulic lift 302.

[0028] Understandably, the limiting guide plate 304 is arranged vertically along both sides of the adjusting frame 301, forming a precise sliding fit with the sliding groove. During the tension adjustment process, when the movable block 303 is subjected to the lateral force transmitted by the conveyor belt 2 or the slight deflection force at the output end of the hydraulic lift 302, the fit between the limiting guide plate 304 and the sliding groove can constrain the movement trajectory of the movable block 303 and the lifting frame 305, converting all non-vertical offset forces into the constraint force of the sliding groove, thereby effectively preventing the movable block 303 from shifting or jamming during the lifting process. This guiding structure ensures the smoothness, accuracy, and reliability of the tension adjustment process, maintaining the vertical movement trajectory of the tension roller 307 even under harsh working conditions where the belt is heavily loaded and generates a large lateral force. At the same time, the sliding fit between the sliding groove and the limiting guide plate 304 disperses the lateral force to the overall structure of the adjusting frame 301, reducing the radial load borne by the piston rod of the hydraulic lift 302 and extending the service life of the seals and moving parts of the hydraulic lift 302.

[0029] In some embodiments, the sensing processing system includes a central controller 5, a deviation sensing module 6, a tension monitoring module 7, and a wireless transmission module 8; A central controller 5 is installed at the bottom of the rack 1 and on the right side of the adjustment frame 301; the central controller 5 is the control core of the entire system and is responsible for signal acquisition, data processing, logic judgment and generation and transmission of control commands. The misalignment sensing module 6 is set on both sides of the conveyor belt 2 to detect the positional changes of the edge of the conveyor belt 2 in real time and to determine whether misalignment has occurred and the degree of misalignment. The tension monitoring module 7 is embedded inside the tension roller 307 and is used to measure the pressure applied by the belt to the tension roller 307 in real time, and to obtain the actual tension value of the belt by calculation. One end of the central controller 5 is equipped with a wireless transmission module 8, which is used to realize remote data communication between the device and the host computer monitoring center. Both hydraulic lifts 302 are electrically connected to the central controller 5 via wires, ensuring that the central controller 5 can directly and quickly send action commands to the hydraulic lifts 302 to achieve real-time response of tension adjustment.

[0030] It should be noted that the central controller 5 continuously receives signals from the belt misalignment sensor module 6 and the tension monitoring module 7, compares and calculates the received real-time data with preset values, and once it detects that the belt tension deviates from the optimal value or that the belt misalignment occurs, the central controller 5 will immediately issue precise control commands to the hydraulic lift 302 and the belt dynamic correction device 4 to perform corrective actions, forming an efficient closed-loop control. The tension monitoring module 7 is embedded inside the tension roller 307 and directly measures the contact pressure between the tension roller 307 and the belt. This arrangement allows the sensor to directly perceive changes in belt tension, is not affected by external environmental interference, and has high measurement accuracy and fast response speed. When the tension monitoring module 7 detects insufficient tension, the sensing processing system first activates the tension adjustment mechanism 3 to raise the tension roller 307, increasing the belt wrap angle and contact pressure. If misalignment is detected at the same time, the force angle and force of the belt dynamic correction device 4 are adjusted synchronously to avoid belt twisting caused by single-point adjustment, thus realizing the linkage and coordination of tensioning and correction. The wireless transmission module 8 enables the device status information and monitoring data to be remotely transmitted to the host computer monitoring center, facilitating managers to remotely monitor the equipment's operating status. It also supports remotely issuing control commands or modifying operating parameters from the host computer, achieving true remote intelligent management.

[0031] In some embodiments, the central controller 5 is a programmable logic controller (PLC). PLCs are characterized by strong anti-interference capabilities, flexible programming, and short scan cycles, making them particularly suitable for the harsh environments of coal mines, characterized by high electromagnetic interference, dust, and humidity. Multiple tension thresholds and belt misalignment allowances can be preset within the PLC, allowing for flexible selection based on different operating conditions. Its millisecond-level scan cycle ensures rapid completion of the entire process from signal acquisition and data processing to control command output, enabling timely response to belt tension and misalignment changes and early correction to prevent the problem from escalating. Furthermore, the PLC has abundant communication interfaces, facilitating convenient data exchange with external devices such as the wireless transmission module 8 and a host computer.

[0032] In some embodiments, the deviation sensing module 6 is a through-beam photoelectric sensor, and multiple pairs of deviation sensing modules are arranged in pairs, with each pair of deviation sensing modules symmetrically arranged on both sides of the frame 1. Furthermore, the number of belt dynamic correction devices 4 and belt misalignment sensing modules is the same, and each belt dynamic correction device 4 is arranged adjacent to a belt misalignment sensing module in a one-to-one correspondence.

[0033] Specifically, the through-beam photoelectric sensor determines the degree of belt misalignment by detecting edge obstruction or distance changes on the conveyor belt 2. It offers advantages such as fast response, high detection accuracy, and non-contact measurement, without causing any resistance or wear to the belt's operation. Multiple pairs of misalignment sensor modules 6 are arranged at intervals along the belt's running direction, allowing independent detection of misalignment in different sections of the belt. Even if one pair of sensors temporarily fails due to dust or dirt, the others can continue to operate, improving system redundancy and reliability. The one-to-one correspondence between the belt dynamic correction device 4 and the misalignment sensor modules 6 ensures that when a sensor detects misalignment, the central controller 5 can immediately instruct the adjacent belt dynamic correction device 4 to perform directional correction. This achieves precise control of misalignment correction, avoiding over-correction and energy waste caused by blind adjustments across the entire line, and improving correction response speed and accuracy.

[0034] In some embodiments, the tension monitoring module 7 is a pressure sensor. The pressure sensor is embedded inside the tension roller 307 and is used to indirectly measure the pressure applied to the tension roller 307 by the belt, and to calculate the belt tension value in real time through a pre-calibrated pressure-tension conversion relationship. Embedding the pressure sensor inside the tension roller 307 makes it an integral structure with the tension roller 307, allowing the sensor to directly bear and measure the radial pressure of the belt on the tension roller 307, eliminating measurement errors caused by intermediate transmission links. The pressure sensor is preferably encapsulated in a high-protection-level housing (e.g., IP67 rating) to ensure dust and moisture isolation, adapting to the harsh environment of water and dust in underground coal mines. The pressure sensor outputs a standard electrical signal, which can be directly acquired and processed by the central controller 5, with a short signal transmission path and strong anti-interference capability.

[0035] In some embodiments, the wireless transmission module 8 is an intrinsically safe ZigBee module. The intrinsically safe ZigBee module complies with coal mine explosion-proof standards. Through its intrinsically safe circuit design, it will not generate electrical sparks or thermal effects sufficient to ignite gas or coal dust even in fault conditions. It can be directly applied to underground coal mine gas environments without the need for additional explosion-proof enclosures. ZigBee wireless communication technology features low power consumption, self-organizing networks, and large network capacity, making it suitable for establishing stable wireless communication links in narrow spaces such as underground roadways. The central controller 5, through the intrinsically safe ZigBee module, can upload real-time tension data, deviation status, correction counts, equipment runtime, and other information to the host computer monitoring center, facilitating remote monitoring of equipment status by management personnel. Simultaneously, management personnel can remotely set tension thresholds, adjust correction parameters, or force the start of correction programs via the host computer, achieving remote intelligent management, reducing the frequency of manual inspections underground, and improving safety management levels.

[0036] In some embodiments, the central controller 5 is electrically connected to the belt misalignment sensing module 6, the tension monitoring module 7, and the belt dynamic correction device 4 via wires or wireless communication. Wired connections offer stable transmission, strong anti-interference capabilities, and the fastest response speed, making them suitable when conditions permit and ensuring the real-time performance and reliability of control commands. Wireless communication connections are suitable for situations where wiring is difficult or flexible deployment is required, reducing cable laying workload and maintenance costs. The compatibility design of both communication methods allows the device to flexibly select the communication method according to the actual conditions in different areas of the coal mine, improving the device's environmental adaptability and installation convenience.

[0037] In some embodiments, two limiting guide rollers 9 are provided inside the frame 1 and above the adjustment frame 301, and both limiting guide rollers 9 are in contact with the inner side of the conveyor belt 2.

[0038] The limiting guide roller 9 is located above the tension roller 307 and is used to guide the running trajectory of the conveyor belt 2. When the tension adjustment mechanism 3 adjusts the vertical position of the tension roller 307, the wrap angle and running path of the conveyor belt 2 will change. The limiting guide roller 9 provides stable transition support for the conveyor belt 2, preventing the belt from bending violently or running laterally when entering and leaving the tensioning area due to the raising and lowering of the tension roller 307. The limiting guide roller 9 effectively reduces stress concentration and bending fatigue of the belt during the tension adjustment process, protects the belt edge from damage, and extends the belt's service life. At the same time, the stable support provided by the two limiting guide rollers 9 also ensures that the belt maintains the correct running posture before entering the tension roller 307, providing stable measurement conditions for tension monitoring and improving the accuracy of tension measurement.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to 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 invention according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A smart tensioning and misalignment linkage correction device for a coal mine belt conveyor, characterized in that, Includes frame, conveyor belt, tension adjustment mechanism, belt dynamic correction device and sensing and processing system; The tension adjustment mechanism is located below the frame, the conveyor belt is sleeved on the frame, and the tension adjustment mechanism includes a movable tension roller, with the inner side of the conveyor belt passing through the tension roller. The belt dynamic correction device is located on both sides of the frame and abuts against both sides of the conveyor belt; The sensing and processing system is located outside the frame and is electrically connected to the belt dynamic correction device and the tension adjustment mechanism to coordinate and control the offset and tension of the conveyor belt.

2. The intelligent tensioning and misalignment linkage correction device for a coal mine belt conveyor as described in claim 1, characterized in that, The tension adjustment mechanism also includes an adjustment frame, a hydraulic lift, a movable block, a limit guide plate, a lifting frame, and rollers; The adjustment frame is fixedly installed at the bottom of the machine frame; Two hydraulic lifts are provided, and the two hydraulic lifts are symmetrically arranged in the adjustment frame. Each hydraulic lift has a movable block fixedly connected to its output end. The adjustment frame is provided with a movable slot for the movable block to move with the output of the hydraulic lift. The lifting frame is fixedly installed between the two movable blocks; The tensioning roller is mounted on the lifting frame via a roller shaft and contacts the inside of the conveyor belt.

3. The intelligent tensioning and misalignment linkage correction device for a coal mine belt conveyor as described in claim 2, characterized in that, Each of the movable blocks is provided with a limiting guide plate, and the inner wall of the adjusting frame is provided with a sliding groove that slides and connects with the limiting guide plate. The sliding direction of the sliding groove is the same as the output direction of the hydraulic lift.

4. The intelligent tensioning and misalignment linkage correction device for a coal mine belt conveyor as described in claim 2, characterized in that, The sensing and processing system includes a central controller, a deviation sensing module, a tension monitoring module, and a wireless transmission module; A central controller is located at the bottom of the frame and on the right side of the adjustment frame; The misalignment sensing module is located on both sides of the conveyor belt; The tension monitoring module is embedded inside the tensioning roller; One end of the central controller is equipped with a wireless transmission module; Both of the hydraulic lifts are electrically connected to the central controller via wires.

5. The intelligent tensioning and misalignment linkage correction device for a coal mine belt conveyor according to claim 4, characterized in that, The central controller is a programmable logic controller.

6. The intelligent tensioning and misalignment linkage correction device for a coal mine belt conveyor according to claim 4, characterized in that, The deviation sensing module is a through-beam photoelectric sensor, and multiple pairs of deviation sensing modules are provided, with each pair of deviation sensing modules symmetrically arranged on both sides of the frame edge. Furthermore, the number of the belt dynamic correction device and the belt misalignment sensing module are the same, and each belt dynamic correction device and the belt misalignment sensing module are arranged adjacent to each other in a one-to-one correspondence.

7. The intelligent tensioning and misalignment linkage correction device for a coal mine belt conveyor according to claim 4, characterized in that, The tension monitoring module is a pressure sensor.

8. The intelligent tensioning and misalignment linkage correction device for a coal mine belt conveyor according to claim 4, characterized in that, The wireless transmission module is an intrinsically safe ZigBee module.

9. A smart tensioning and misalignment linkage correction device for a coal mine belt conveyor according to any one of claims 4-8, characterized in that, The central controller is electrically connected to the belt misalignment sensing module, the tension monitoring module, and the belt dynamic correction device via wires or wireless communication.

10. The intelligent tensioning and misalignment linkage correction device for a coal mine belt conveyor according to claim 1, characterized in that, Two limiting guide rollers are provided inside the frame and above the adjusting frame, and both limiting guide rollers are in contact with the inner side of the conveyor belt.

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