An automatic inspection device for a conveyor belt idler

Abstract

The application discloses an automatic inspection device for a conveyor belt carrier roller and relates to the technical field of inspection devices, which comprises a walking mechanism and a power generation mechanism. The walking mechanism is arranged on a flat steel, the upper and lower sides of the flat steel are conveyor belts, and the flat steel is arranged between two rows of carrier rollers. A pair of detection assemblies are arranged on the walking mechanism, and the device further comprises a pressing assembly, a driving assembly and a cleaning assembly. The detection assemblies arranged on both sides of the device integrate binocular cameras, three-dimensional imagers and microphone arrays. During stable movement, they synchronously collect carrier roller state information from three physical dimensions of vision (surface defects), three-dimensional form (size, coaxiality and offset) and acoustics (abnormal sound and bearing failure), can comprehensively identify various problems from appearance abnormalities to internal mechanical failures, greatly improve the defect detection rate and the reliability of state diagnosis, and avoid the limitation of single sensor detection.

Description

Technical Field

[0001] This invention relates to the field of inspection device technology, and in particular to an automatic inspection device for conveyor belt idlers. Background Technology

[0002] In material handling systems across industries such as mining, ports, power, and metallurgy, conveyor belt idlers are critical load-bearing and transmission components, and their operational status directly impacts the efficiency, safety, and lifespan of the conveying system. Traditional manual inspection methods suffer from low efficiency, high risk, and the inability to achieve real-time monitoring. In recent years, automated inspection technology has gradually been applied, but it still has the following significant shortcomings:

[0003] Existing automated inspection devices mostly employ single detection methods, such as relying solely on visual cameras for surface inspection. This approach can only identify obvious damage or dirt on the surface of the idler rollers, and cannot effectively identify deeper, multi-dimensional faults such as concentricity deviations, axial movement, early internal bearing damage (e.g., pitting, fatigue spalling), and minute diameter changes due to wear. The deterioration of the idler roller's condition is a process involving multiple factors, and relying on data from only one dimension can easily lead to missed detections or misjudgments, failing to provide a comprehensive and reliable basis for predictive maintenance.

[0004] Meanwhile, inspection devices typically need to run continuously for extended periods along fixed tracks (such as flat steel). However, the conveyor belt environment is complex, with potential oil and dust accumulation on the tracks, and the device itself generates vibrations. Existing devices lack effective adaptive cleaning and track stabilization mechanisms. Incomplete track cleaning can cause slippage or jamming of the traveling wheels; and simple spring clamping mechanisms maintain a constant clamping force when the device accelerates, decelerates, or passes through vibration zones, making it difficult to maintain a stable and tight fit between the device and the track, leading to shaking, deviation, or even vibration of the inspection device itself. This unstable operating state directly results in blurred images captured by binocular cameras, distorted scanning data from 3D imagers, and mechanical noise mixed into the audio signals collected by microphone arrays, severely reducing the quality and reliability of the detection data, making high-precision detection impossible.

[0005] Therefore, there is an urgent need for an automatic inspection device that can achieve multi-dimensional fusion detection to comprehensively diagnose the health status of idlers, while possessing superior operational stability and self-adaptive capabilities to ensure accurate and reliable detection data. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic inspection device for conveyor belt idlers to solve the problems mentioned in the background art.

[0007] The technical solution of the present invention is: an automatic inspection device for conveyor belt idlers, including a walking mechanism and a power generation mechanism. The walking mechanism is set on a flat steel, the upper and lower sides of which are conveyor belts. The flat steel is set between two rows of idlers. A pair of detection components are set on the walking mechanism.

[0008] The walking mechanism includes two side plates, side plate one and side plate two, which are fixedly connected to each other at the bottom. A pair of detection components are respectively disposed on the outer sides of side plate one and side plate two. Each detection component includes a binocular camera, a microphone array, and a 3D imager arranged in sequence. It also includes:

[0009] A pressing component is disposed on the inner side of side plate one;

[0010] A drive assembly is disposed on the inner side of side plate two;

[0011] A cleaning component is disposed at one end of the walking mechanism and is used to clean the surface of the flat steel.

[0012] The power generation mechanism includes a mounting plate on which a generator is mounted. Driven wheels that contact the conveyor belt below are fixed at both ends of the generator's output shaft. A connecting rod is fixed between the mounting plate and the side plate.

[0013] Preferably, a cover plate is fixed to the top of the first side plate, and a top frame is fixed between the cover plate and the top of the second side plate. Multiple load-bearing wheels are rotatably mounted on the top frame, and the load-bearing wheels are in contact with the top of the flat steel. A reinforcing rib is fixed to the inner side of the first side plate, and a base frame is fixed to the end of the reinforcing rib and the bottom end of the first side plate. Multiple bottom guide wheels are rotatably mounted on the base frame.

[0014] Preferably, the drive assembly includes a support plate fixed between the base frame and one inner side of the side plate, a drive motor is fixed on the support plate, a drive wheel is fixed on the output shaft of the drive motor, and the drive wheel is in contact with one side of the flat steel.

[0015] Preferably, the pressure-blocking assembly includes a pair of cavity plates fixed to the inner side of the side plate. Multiple pairs of damping telescopic rods are fixedly connected to the cavity plates. Each pair of damping telescopic rods has a common mounting bracket at its end. A pressure-blocking wheel is rotatably mounted on the mounting bracket. A connecting spring is fixedly installed between the mounting bracket and the cavity plate. One end of each cavity plate is fixedly connected to a vent.

[0016] Preferably, the cleaning component includes an end box, inside which a cleaning frame is slidably installed in the vertical direction. The cleaning frame has evenly distributed bristles on its inner side, and air holes that are staggered with the bristles are also provided on the inner side of the cleaning frame.

[0017] Preferably, a pair of guide rods are fixed to the bottom of the cleaning frame, the guide rods are slidably connected to the end box, and a pair of fixed cylinders are fixed to the bottom of the end box, which are coaxially arranged with the guide rods. A piston that is slidably connected to the inside of the fixed cylinder is fixedly installed on each of the guide rods, and a one-way air intake valve pipe is fixedly installed on each of the two fixed cylinders.

[0018] Preferably, the ends of the two cavity plates are fixedly connected to a rigid air supply pipe, and the end of the rigid air supply pipe is connected to an adjacent fixed cylinder.

[0019] Preferably, a connecting hose is fixedly connected to another of the fixed cylinders, and a one-way air outlet valve is fixed to both the air supply hard pipe and the connecting hose.

[0020] Preferably, the top of the cleaning frame is fixedly connected to a pair of connecting cavity columns, which are slidably connected to the top of the end box. The top of the connecting cavity columns are connected to a connecting box, which is fixedly connected to the end of the connecting hose. Each connecting cavity column is fitted with a support spring, and the two ends of the support spring are fixed to the cleaning frame and the inner wall of the top of the end box, respectively.

[0021] Preferably, a cam is rotatably mounted on the bottom of the guide rod, a support frame is fixedly connected between the side plate and the end box, and an end cover is detachably and fixedly mounted on the end of the end box. The end cover is composed of two U-shaped plates spliced ​​together, and multiple guide wheels that contact the upper and lower sides of the flat steel are provided at the concave part of the end cover.

[0022] The present invention provides an improved automatic inspection device for conveyor belt idlers, which has the following improvements and advantages compared with the prior art:

[0023] Firstly, the detection components arranged on both sides of this invention integrate a binocular camera, a 3D imager, and a microphone array. During smooth movement, they simultaneously acquire idler roller status information from three physical dimensions: visual (surface defects), 3D morphology (size, coaxiality, offset), and acoustic (abnormal noise, bearing failure). This multi-source data complementarity verification enables comprehensive identification of various problems, from external anomalies to internal mechanical failures, greatly improving the defect detection rate and the reliability of condition diagnosis, and avoiding the limitations of single-sensor detection.

[0024] Secondly, this invention uses the contact friction between the driven wheel and the running conveyor belt to drive a generator to generate electricity, which powers the entire device (including the drive motor, sensors, etc.). This design completely frees the device from the constraints of external cables or batteries, enabling it to achieve energy self-sufficiency by utilizing the kinetic energy of the conveyor belt itself. This supports the device to perform long-term, long-distance continuous inspection operations without shutting down the conveyor system, greatly expanding its application scope and practicality.

[0025] Thirdly, the walking mechanism in this invention employs a unique bidirectional clamping and adaptive adjustment design. Under the preload of the connecting springs, the drive wheel and the pressure wheel clamp the flat steel from both sides, forming a stable walking base. The load-bearing wheel and the bottom guide wheel provide support and guidance from above and below, respectively, preventing tipping. The damping telescopic rod and the air inside the cavity plate form a buffer system, effectively absorbing vibrations and impacts during movement. Most importantly, through the subsequently described linkage air supply mechanism, the clamping force of the pressure wheel can intelligently increase with the walking speed, ensuring that the device can closely adhere to the track at any speed, exhibiting significant vibration resistance and derailment prevention capabilities, providing a crucial stable platform for high-precision detection.

[0026] Fourthly, the cleaning component in this invention not only handles pre-cleaning but its operation is also deeply coupled with walking stability. As the device moves, the cam rotates, driving the cleaning frame and brush bristles to reciprocate and scrape away dirt. Simultaneously, the compressed air generated by the piston within the fixed cylinder is delivered to the chamber plate via a rigid air supply pipe, creating an adaptive adjustment where "the faster the speed, the more frequent the air supply, and the greater the clamping force"; another path leads to the air vent via a connecting hose and connecting box, ejecting airflow to assist in cleaning. This design cleverly transforms walking kinetic energy into cleaning force and stability adjustment force, achieving intelligent synergy integrating "cleaning and stable movement." Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall second-view three-dimensional structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the overall third-view three-dimensional structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the overall fourth-view three-dimensional structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the overall fifth-view three-dimensional structure of the present invention;

[0033] Figure 6 This is a schematic diagram of the main structure of the walking mechanism of the present invention;

[0034] Figure 7This is a three-dimensional structural diagram of the pressure-absorbing component of the present invention;

[0035] Figure 8 This is a schematic diagram of a partial cross-sectional view of the end box of the present invention;

[0036] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point A in the middle;

[0037] Figure 10 This is a schematic diagram of the detection component structure of the present invention;

[0038] Figure 11 This is a cross-sectional view of the cleaning frame structure of the present invention.

[0039] Figure label:

[0040] 1. Flat steel; 2. Mounting plate; 3. Driven wheel; 4. Generator; 5. Connecting rod; 6. Side plate one; 601. Reinforcing rib; 7. Side plate two; 8. Pressing assembly; 801. Cavity plate; 802. Connecting spring; 803. Damping telescopic rod; 804. Mounting bracket; 805. Pressing wheel; 9. Air supply rigid pipe; 10. Top frame; 11. Load-bearing wheel; 12. Cover plate; 13. Base frame; 14. Bottom guide wheel; 15. End box; 151. End cover; 1 6. Guide rod; 161. Piston; 17. Cam; 18. Fixed cylinder; 181. One-way air intake valve pipe; 19. Drive motor; 191. Drive wheel; 20. Support frame; 21. Binocular camera; 22. Microphone array; 23. 3D imager; 24. One-way air outlet valve; 25. Connecting hose; 26. Connecting box; 27. Support spring; 28. Cleaning frame; 29. ​​Connecting chamber column; 30. Vent; 31. Brush bristles; 32. Air vent. Detailed Implementation

[0041] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] This invention provides an improved automatic inspection device for conveyor belt idlers. The technical solution of this invention is as follows:

[0043] like Figures 1 to 11As shown, this embodiment of the invention provides an automatic inspection device for conveyor belt idlers, including a traveling mechanism and a power generation mechanism. The traveling mechanism is mounted on a flat steel 1, with both ends of the flat steel 1 fixed to the overall conveyor frame. The upper and lower sides of the flat steel 1 are the conveyor belt. The flat steel 1 is positioned between two rows of idlers. The flat steel 1 has a flat structure, which reduces its surface area and thus reduces dust adhesion. A pair of detection components are mounted on the traveling mechanism to detect the status of the idlers.

[0044] The traveling mechanism includes two side plates, 6 and 7, which are fixedly connected at the bottom. A pair of detection components are respectively disposed on the outer sides of side plates 6 and 7. Each detection component includes a binocular camera 21, a microphone array 22, and a 3D imager 23 arranged in sequence. The binocular camera 21 can identify two-dimensional defects such as stains, scratches, and cracks on the surface of the idler roller. Simultaneously, the external system uses image enhancement and smoothing filtering techniques to preprocess the images, improving image quality and highlighting defect features.

[0045] The 3D imager 23 is specifically a structured light 3D scanner. Specifically, the 3D imager 23 projects a series of coded grating patterns (such as striped light) onto the object's surface. These patterns are highly modulated by the object's surface and deformed. The camera captures the deformed patterns, and the 3D shape of the surface can be recovered through a decoding algorithm. The binocular camera 21 and the 3D imager 23 work together to accurately measure the diameter, length, and coaxiality of the idler rollers, and to determine whether the idler rollers have shifted or misaligned.

[0046] Finally, when the idler roller is damaged (e.g., bearing breakage, poor lubrication) or improperly installed, it will produce friction sounds, knocking sounds, or periodic noises that differ from normal operation. These sound changes are captured by the microphone array 22. The binocular camera 21, microphone array 22, and 3D imager 23 perceive the status of the idler roller from different physical dimensions, forming a complementary system to improve the comprehensiveness and reliability of the detection. Finally, the information data collected by the detection components can be transmitted wirelessly to the back-end processing system, which processes and analyzes the data and generates an inspection report.

[0047] It also includes pressure-resistant component 8, drive component, and cleaning component:

[0048] The pressing component 8 is located on the inner side of the side plate 6. The pressing component 8 is used to make the walking mechanism stably fit against the flat steel 1 to improve the stability of the inspection operation.

[0049] The drive assembly is located on the inner side of side plate 2 7, and the drive assembly is used to drive the walking mechanism to move along the flat steel 1;

[0050] The cleaning component is located at one end of the walking mechanism. The cleaning component is used to clean the surface of the flat steel 1 to ensure the stability of the subsequent movement of the walking mechanism.

[0051] The power generation mechanism includes a mounting plate 2, on which a generator 4 is mounted. Driven wheels 3, which are in contact with the conveyor belt below, are fixed at both ends of the output shaft of the generator 4. A connecting rod 5 is fixed between the mounting plate 2 and the side plate 6. When the inspection device is running, the conveyor does not need to stop. At this time, the conveyor belt continues to run. The conveyor belt will drive the generator 4 through the driven wheels 3. Thus, the device does not need to be connected to a power line, which eliminates the constraints of traditional cables and greatly extends the inspection distance and inspection time of the inspection device.

[0052] Furthermore, a cover plate 12 is fixed to the top of side plate 6, and a top frame 10 is fixed between the cover plate 12 and the top of side plate 7. Multiple load-bearing wheels 11 are rotatably mounted on the top frame 10, and the load-bearing wheels 11 are in contact with the top of the flat steel 1. A reinforcing rib 601 is fixed to the inner side of side plate 6, and a base frame 13 is fixed to the end of the reinforcing rib 601 and the bottom end of side plate 6. Multiple bottom guide wheels 14 are rotatably mounted on the base frame 13. By using the multiple load-bearing wheels 11 and bottom guide wheels 14, the stability of the inspection device can be improved.

[0053] Furthermore, the drive assembly includes a support plate fixed between the base frame 13 and the inner side of the side plate 6. A drive motor 19 is fixed on the support plate, and a drive wheel 191 is fixed to the output shaft of the drive motor 19. The drive wheel 191 is in contact with one side of the flat steel 1. In use, the drive motor 19 drives the drive wheel 191 to rotate, and the friction between the drive wheel 191 and the flat steel 1 is used to drive the inspection device to move.

[0054] Furthermore, the pressure-blocking assembly 8 includes a pair of cavity plates 801 fixed to the inner side of the side plate 6. Multiple pairs of damping telescopic rods 803 are fixedly connected to the cavity plates 801. Each pair of damping telescopic rods 803 has a mounting bracket 804 fixed to its end. A pressure-blocking wheel 805 is rotatably mounted on each mounting bracket 804. A connecting spring 802 is fixedly installed between the mounting bracket 804 and the cavity plate 801. One end of each cavity plate 801 is fixedly connected to a vent 30. During movement, the pressure-blocking assembly 8 plays a crucial role. Under the preload of the connecting spring 802, the pressure-blocking wheel 805 is always pressed against the other side of the flat steel 1, forming a clamp with the drive wheel 191. The damping telescopic rods 803 absorb bumps and vibrations during movement, and the air cushioning within the cavity plates 801 ensures that the device runs smoothly and without shaking, conforming to the track.

[0055] As a further embodiment of the present invention, the cleaning component includes an end box 15, and a cleaning frame 28 is slidably installed inside the end box 15 in the vertical direction. The cleaning frame 28 is provided with evenly distributed bristles 31 on its inner side, and air holes 32 are also provided on the inner side of the cleaning frame 28 in an alternating manner with the bristles 31.

[0056] Furthermore, a pair of guide rods 16 are fixed to the bottom of the cleaning frame 28. The guide rods 16 are slidably connected to the end box 15. A pair of fixed cylinders 18 coaxially arranged with the guide rods 16 are fixed to the bottom of the end box 15. A piston 161 that is slidably connected to the inside of the fixed cylinder 18 is fixedly installed on each guide rod 16. A one-way air intake valve pipe 181 is fixedly installed on each of the two fixed cylinders 18. A cam 17 is rotatably installed on the bottom of the guide rod 16. In use, the cleaning frame 28, under the action of the cam 17 and the guide rods 16, and in conjunction with the subsequent support spring 27, reciprocates in the vertical direction and uses the bristles 31 to clean the surface of the flat steel 1.

[0057] Furthermore, the ends of the two chamber plates 801 are jointly connected to a rigid air supply pipe 9, the end of which is connected to an adjacent fixed cylinder 18. A connecting hose 25 is fixedly connected to another fixed cylinder 18. A one-way air outlet valve 24 is fixedly installed on both the rigid air supply pipe 9 and the connecting hose 25. With the above structure, when the guide rod 16 reciprocates in the vertical direction, the piston 161 continuously forces the air between the fixed cylinder 18 and the piston 161 out of the one-way air outlet valve 24.

[0058] When the compressed air enters the air supply pipe 9, it can enter the cavity plate 801. The faster the inspection device moves, the faster the cam 17 will rotate, thereby increasing the frequency of air blowing. When the air intake speed is greater than the air release speed of the vent 30, the air pressure inside the cavity plate 801 increases, causing the damping telescopic rod 803 to extend as much as possible, thereby improving the pressing effect of the pressure component 8. In summary, when the speed of the inspection device increases, the pressing effect of the pressure component 8 can be adaptively improved, thereby adaptively improving the stability of the movement of the inspection device.

[0059] The air compressed by another fixed cylinder 18 enters the cleaning frame 28 through the connecting hose 25, connecting box 26 and connecting cavity column 29, and is finally blown out through multiple air holes 32 to improve the cleaning effect on the flat steel 1 and ensure the stable progress of the inspection operation.

[0060] Furthermore, a pair of connecting cavity pillars 29 are fixedly connected to the top of the cleaning frame 28. The connecting cavity pillars 29 are slidably connected to the top of the end box 15. The top of the connecting cavity pillars 29 are connected to a connecting box 26. The connecting box 26 is fixedly connected to the end of the connecting hose 25. Each connecting cavity pillar 29 is fitted with a support spring 27. The two ends of the support spring 27 are fixed to the top inner wall of the cleaning frame 28 and the end box 15, respectively.

[0061] As a further embodiment of the present invention, a support frame 20 is fixedly connected between the side plate 2 7 and the end box 15. An end cover 151 is detachably and fixedly installed at the end of the end box 15. The end cover 151 is composed of two plates in the shape of a "U". In order to reduce the friction between the end cover 151 and the flat steel 1, a plurality of guide wheels that contact the upper and lower sides of the flat steel 1 are provided at the recess of the end cover 151.

[0062] The specific working method is as follows: The device is installed on the flat steel 1 between the idlers on both sides of the conveyor belt. After startup, the continuously running conveyor belt below rubs against the driven wheel 3 of the power generation mechanism, driving the rotor of the generator 4 to rotate and generate electricity. The generated electrical energy supplies power to the drive motor 19 and the detection components through the control system, realizing the system's self-starting and energy circulation; specifically, the drive motor 19 starts, driving the drive wheel 191 to rotate, and relying on its friction with the side of the flat steel 1, it drives the entire device to move forward along the track. At the same time, the pressure component 8 starts to work: the initial pressure of the connecting spring 802 pushes the mounting bracket 804, causing the pressure wheel 805 to press against the other side of the flat steel 1, forming a stable clamping force with the drive wheel 191. The bumps during travel are absorbed by the damping telescopic rod 803 and the air damping in the cavity plate 801.

[0063] As the device moves forward, cam 17 rotates, periodically lifting guide rod 16. Support spring 27 provides a restoring force, causing cleaning frame 28 to drive brush bristles 31 in a reciprocating motion in the vertical direction, continuously scraping the surface of flat steel 1 to ensure the track is clean. This reciprocating motion synchronously drives pistons 161 within the two fixed cylinders 18, drawing in air through one-way intake valve pipe 181 and pumping compressed air out through one-way exhaust valve 24. The airflow is divided into two paths:

[0064] First-stage stability adjustment: Compressed air enters the two chamber plates 801 via the air supply hard pipe 9. When the device accelerates, the cam 17 rotates faster, increasing the air supply frequency. If the intake rate exceeds the constant exhaust rate of the vent 30, the air pressure inside the chamber plate 801 rises, pushing all the damping telescopic rods 803 to extend further, thereby significantly increasing the clamping force of the pressure roller 805 on the flat steel 1. This process achieves adaptive enhancement of walking stability to speed.

[0065] The second enhanced cleaning method involves compressed air being delivered via connecting hose 25 to connecting box 26, then distributed to connecting chamber column 29, and finally ejected from air vent 32 on cleaning frame 28. The airflow combined with the mechanical scraping action of brush bristles 31 more effectively removes stubborn stains and dust from crevices, improving cleaning efficiency.

[0066] During the smooth operation of the device, a pair of detection components located on the outer sides of side plate 6 and side plate 7 simultaneously scan the idlers on both sides. A binocular camera 21 captures high-definition images for visual analysis; a 3D imager 23 projects a grating and captures deformed patterns to reconstruct the 3D model of the idlers for precise measurement of geometric parameters; a microphone array 22 collects operating noise for acoustic spectrum analysis. These three sets of data are uploaded in real-time to the backend processing system for fusion analysis, comprehensively determining whether the idlers have faults such as wear, deformation, misalignment, or bearing damage. The device can run back and forth on the flat steel track 1 according to a preset program, achieving cyclical inspection of the entire conveyor belt line. When maintenance is required, the end cover 151 can be easily disassembled to inspect or replace parts of the cleaning components or internal mechanisms.

[0067] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic inspection device for a conveyor belt idler, comprising a traveling mechanism and a power generation mechanism, characterized by, The walking mechanism is mounted on the flat steel (1), with conveyor belts on the upper and lower sides of the flat steel (1). The flat steel (1) is positioned between two rows of idlers. A pair of detection components are mounted on the walking mechanism. The walking mechanism includes a first side plate (6) and a second side plate (7) fixedly connected at the bottom. A pair of detection components are respectively disposed on the outside of the first side plate (6) and the second side plate (7). Each detection component includes a binocular camera (21), a microphone array (22), and a three-dimensional imager (23) arranged in sequence. It also includes: A pressing component (8) is disposed on the inner side of side plate 1 (6); A drive assembly is disposed on the inner side of side plate two (7); A cleaning component is provided at one end of the walking mechanism and is used to clean the surface of the flat steel (1); The power generation mechanism includes a mounting plate (2), on which a generator (4) is mounted. Driven wheels (3) that contact the conveyor belt below are fixed at both ends of the output shaft of the generator (4). A connecting rod (5) is fixed between the mounting plate (2) and the side plate (6). The pressure-blocking assembly (8) includes a pair of cavity plates (801) fixed to the inside of the side plate (6). Multiple pairs of damping telescopic rods (803) are fixedly connected to the cavity plates (801). Each pair of damping telescopic rods (803) has a mounting bracket (804) fixedly attached to its end. Each mounting bracket (804) has a pressure-blocking wheel (805) rotatably mounted on it. A connecting spring (802) is fixedly installed between the mounting bracket (804) and the cavity plates (801). One end of each cavity plate (801) is fixedly connected to a vent (30). The cleaning assembly includes an end box (15), and a cleaning frame (28) is slidably installed inside the end box (15) in the vertical direction. The cleaning frame (28) is provided with evenly distributed bristles (31) on the inner side, and air holes (32) are also provided on the inner side of the cleaning frame (28) in an alternating manner with the bristles (31). The bottom of the cleaning frame (28) is fixed with a pair of guide rods (16), which are slidably connected to the end box (15). The bottom of the end box (15) is fixed with a pair of fixed cylinders (18) coaxially arranged with the guide rods (16). Each guide rod (16) is fixedly installed with a piston (161) that is slidably connected to the inside of the fixed cylinder (18). Each of the two fixed cylinders (18) is fixedly installed with a one-way air intake valve pipe (181). The ends of the two cavity plates (801) are fixedly connected to a gas supply pipe (9), and the end of the gas supply pipe (9) is connected to the adjacent fixed cylinder (18). Another fixed cylinder (18) is fixedly connected to a connecting hose (25), and a one-way air outlet valve (24) is fixedly connected to both the air supply hard pipe (9) and the connecting hose (25). A cam (17) is rotatably mounted on the bottom of the guide rod (16). A support frame (20) is fixedly connected between the side plate (7) and the end box (15). An end cover (151) is detachably and fixedly mounted on the end of the end box (15). The end cover (151) is composed of two plates in the shape of a "U". The end cover (151) has multiple guide wheels at the notch that contact the upper and lower sides of the flat steel (1).

2. The automatic inspection device for the conveyor belt carrier roller according to claim 1, characterized in that: A cover plate (12) is fixed to the top of the first side plate (6). A top frame (10) is fixed between the cover plate (12) and the top of the second side plate (7). Multiple load-bearing wheels (11) are rotatably mounted on the top frame (10). The load-bearing wheels (11) are in contact with the top of the flat steel (1). A reinforcing rib (601) is fixed to the inner side of the first side plate (6). A base frame (13) is fixed to the end of the reinforcing rib (601) and the bottom end of the first side plate (6). Multiple bottom guide wheels (14) are rotatably mounted on the base frame (13).

3. The automatic inspection device for conveyor belt idlers according to claim 2, characterized in that: The drive assembly includes a support plate fixed between the base frame (13) and the inner side of the side plate (6). A drive motor (19) is fixed on the support plate. A drive wheel (191) is fixed on the output shaft of the drive motor (19). The drive wheel (191) is in contact with one side of the flat steel (1).

4. The automatic inspection device for conveyor belt idlers according to claim 1, characterized in that: The top of the cleaning frame (28) is fixedly connected to a pair of connecting cavity columns (29). The connecting cavity columns (29) are slidably connected to the top of the end box (15). The top of the connecting cavity columns (29) is connected to a connecting box (26). The connecting box (26) is fixedly connected to the end of the connecting hose (25). Each of the connecting cavity columns (29) is fitted with a support spring (27). The two ends of the support spring (27) are fixed to the top inner wall of the cleaning frame (28) and the end box (15), respectively.

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