Conveyor belt wear detection device

Abstract

The invention discloses a conveyor belt wear detection device, and relates to the technical field of conveyor belt detection, the conveyor belt wear detection device comprises an image acquisition sensor, a blowing mechanism and an air supply mechanism, the image acquisition sensor is arranged towards a to-be-detected conveyor belt, the image acquisition sensor is connected with an image analysis device, and an air outlet of the blowing mechanism is arranged corresponding to the to-be-detected conveyor belt; the air supply mechanism is communicated with the purging mechanism; on the basis that the surface of the to-be-detected conveying belt is cleaned through the purging mechanism to improve the surface cleanliness of the to-be-detected conveying belt, the clear belt body surface image of the to-be-detected conveying belt is obtained in real time through the image collection sensor, and the image is transmitted to the image analysis equipment to be analyzed; therefore, the wear information of the to-be-detected conveying belt can be obtained, the automatic detection of the wear of the to-be-detected conveying belt is realized, the detection precision and the detection accuracy can be improved, and human resources and material resources are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of conveyor belt detection, in particular to a conveyor belt wear detection device. Background Art

[0002] As a key equipment in modern industrial production, conveyor belts are mainly used for carrying and transporting materials, reducing the use of manpower and achieving continuous operation. The operating status of conveyor belts directly affects the efficiency and safety of the production line.

[0003] Due to long-term operation and material friction, the surface of the conveyor belt will often show varying degrees of wear. When the wear is more serious, there will be greater risks in continuing to use it. Therefore, it is necessary to detect the degree of wear of the conveyor belt.

[0004] Currently, the commonly used methods to avoid the risk of conveyor belts being seriously worn are: manual inspection and regular replacement. Manual inspection is inefficient, has poor detection accuracy, and wastes human resources. Although regular replacement can reduce the use of human resources, it cannot determine the degree of wear of the conveyor belt during the period of use after replacement, and cannot determine whether the conveyor belt will be unusable due to serious wear during the period of use after replacement. In addition, conveyor belts with less wear are replaced after the replacement time is reached, resulting in a waste of resources.

[0005] Therefore, people are in urgent need of a conveyor belt wear detection device with high detection efficiency, high detection accuracy and resource saving. Summary of the Invention

[0006] The purpose of the present invention is to provide a conveyor belt wear detection device to solve the problems existing in the above-mentioned prior art, and to use automated detection equipment to automatically detect the wear of the conveyor belt to be detected, so as to improve the detection efficiency and detection accuracy, and save manpower and material resources.

[0007] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a conveyor belt wear detection device, including an image acquisition sensor, a purge mechanism and an air supply mechanism. The image acquisition sensor is arranged toward the conveyor belt to be detected, and the image acquisition sensor is connected to an image analysis device. The air outlet of the purge mechanism is arranged corresponding to the conveyor belt to be detected, and the air supply mechanism is connected to the purge mechanism.

[0008] Preferably, the conveyor belt wear detection device also includes a support mechanism arranged under the conveyor belt to be detected, the support mechanism includes a first support rod, a second support rod and a third support rod distributed in a triangle, the first support rod, the second support rod and the third support rod are connected by a connecting rod, a cross bar is connected between the first support rod and the second support rod, the image acquisition sensor is arranged on the cross bar, and the purge mechanism is arranged on the third support rod.

[0009] Preferably, the image acquisition sensor is arranged on the crossbar through an angle adjustment mechanism, and the purge mechanism is arranged on the third support rod through an angle adjustment mechanism.

[0010] Preferably, the conveyor belt wear detection device further comprises a lighting device, the lighting area of ​​the lighting device covers the shooting area of ​​the image acquisition sensor, and the lighting device is arranged on the cross bar through an angle adjustment mechanism.

[0011] Preferably, both ends of the crossbar are respectively arranged on the first support rod and the second support rod through an angle adjustment mechanism.

[0012] Preferably, the angle adjustment mechanism includes a plum blossom rubber head, a U-shaped clip, a positioning screw and a positioning piece. The U-shaped clip is clamped on the rod body, and the two arms of the U-shaped clip are correspondingly provided with through holes. The positioning screw is passed through the through hole. One end of the positioning screw is threadedly connected to the plum blossom rubber head, and the other end is fixedly connected to the positioning piece. The positioning piece is provided with a positioning hole for the rod body fixedly connected to the angle adjustment mechanism to pass through, and a locking threaded hole perpendicular to the positioning hole. The locking threaded hole is connected to the positioning hole, and a locking screw is threadedly connected to the locking threaded hole.

[0013] Preferably, the first support rod, the second support rod and the third support rod are connected to a support plate, and the support plate is slidably arranged on the bottom plate through a slide rail slider structure, and the slide rail of the slide rail slider structure is parallel to the conveying direction of the conveyor belt to be detected.

[0014] Preferably, the conveyor belt wear detection device also includes a scraping mechanism, which includes a scraper and a triangular support frame. The scraper is arranged on the triangular support frame. The conveyor belt to be detected is supported by a belt support frame. The belt support frame is provided with multiple adjustment threaded holes from bottom to top, and the triangular support frame is connected to the adjustment threaded holes through a screw.

[0015] Preferably, the purging mechanism includes an air gun and at least one air manifold, the purging area of ​​the air gun is arranged corresponding to the unphotographed area on the upward side of the conveyor belt to be detected in the shooting area of ​​the image acquisition sensor, the air manifold includes a plurality of purging pipes, the plurality of purging pipes are connected to the diversion chamber, the diversion chamber and the air gun are connected to the air supply mechanism, the plurality of purging pipes are arranged along the width direction of the conveyor belt to be detected, and the purging areas of the plurality of purging pipes cover the conveyor belt to be detected.

[0016] Preferably, the conveyor belt wear detection device also includes a cleaning mechanism, which includes a brush, an L-shaped transmission rod and a drive motor. The brush is connected to the drive motor through the L-shaped transmission rod, and the lens surface of the image acquisition sensor is located on the movement path of the brush.

[0017] Compared with the prior art, the present invention mainly achieves the following technical effects:

[0018] The surface of the conveyor belt to be inspected is cleaned by using a purge mechanism to improve the cleanliness of the surface of the conveyor belt to be inspected and to form an airtight seal effect to prevent dust from entering the lens area of ​​the image acquisition sensor. On this basis, a clear surface image of the conveyor belt to be inspected is obtained in real time by using an image acquisition sensor, and the image is transmitted to an image analysis device for analysis, so as to obtain the wear information of the conveyor belt to be inspected, thereby realizing the automated detection of the wear of the conveyor belt to be inspected, which has the advantages of non-contact, high precision, and strong real-time performance. Compared with manual inspection, the detection precision and accuracy can be improved, and no human intervention is required, thus saving human resources. Based on the acquired wear information of the conveyor belt to be inspected, the conveyor belt to be inspected can be replaced only after the wear reaches a specified degree, thus saving material resources.

[0019] Compared with the prior art, other solutions of the present invention have achieved the following technical effects:

[0020] The scraping mechanism can actively scrape off the debris on the conveyor belt to be inspected that cannot be blown off, helping to improve the shooting effect of the visual sensor and thus improve the detection accuracy.

[0021] The air gun can achieve powerful blowing on smaller areas. Combined with the large-area blowing of the air distribution manifold, it can improve the cleaning effect and form an airtight area to prevent external dust from entering the visual sensor area, thereby ensuring the shooting effect of the visual sensor and improving the detection accuracy.

[0022] The use of a brush can actively clean the lens of the visual sensor to ensure the cleanliness of the lens, improve the shooting effect of the visual sensor, and thus improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 2 is a front structural diagram of a conveyor belt wear detection device according to an embodiment of the present invention;

[0025] Figure 2 2. It is a schematic diagram of the back structure of the conveyor belt wear detection device in an embodiment of the present invention;

[0026] Figure 3 This is a schematic structural diagram of the conveyor belt wear detection device after a cover is provided in an embodiment of the present invention;

[0027] Figure 4 Schematic diagram of the structure of the air gun of the conveyor belt wear detection device in an embodiment of the present invention;

[0028] Figure 5 This is a structural schematic diagram of an image acquisition sensor and a cleaning mechanism in a conveyor belt wear detection device of the present invention;

[0029] Figure 6 The figure is a structural schematic diagram of an angle adjustment mechanism in a conveyor belt wear detection device of the present invention.

[0030] Among them, 1. Image acquisition and control box; 2. First support rod; 3. Cross bar; 4. Lighting equipment; 5. Slide rail; 6. Slider; 7. Cleaning mechanism; 8. Plum blossom rubber head; 9. Conveyor belt to be inspected; 10. Scraper; 11. Triangular support frame; 12. Air gun; 13. Image acquisition sensor; 14. Cover; 15. Second support rod; 16. Support plate; 17. Bottom plate; 18. Air pump; 19. Third support rod; 20. Belt support frame; 21. Magnetic inspection door; 22. Drive motor; 23. Connecting frame; 24. Air manifold; 25. L-shaped transmission rod; 26. Brush; 27. U-shaped clip; 28. Positioning piece; 29. ​​Locking threaded hole. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] The purpose of the present invention is to provide a conveyor belt wear detection device to solve the problems existing in the prior art, and to use automated detection equipment to automatically detect the wear of the conveyor belt to be detected, so as to improve the detection efficiency and detection accuracy, and save manpower and material resources.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Please refer to Figures 1 to 6 As shown, a conveyor belt wear detection device is provided, including an image acquisition sensor 13, a purge mechanism and an air supply mechanism. The image acquisition sensor 13 is a camera device such as a 3D camera or a laser profiler. The image acquisition sensor 13 is set toward the conveyor belt 9 to be detected, and is used to collect the surface profile image of the conveyor belt 9 to be detected. The image acquisition sensor 13 is connected to the image analysis device, and can be started and closed by the image acquisition and control box 1. The air outlet of the purge mechanism is set corresponding to the conveyor belt 9 to be detected, and the air supply mechanism is connected to the purge mechanism. The air supply mechanism supplies air to the purge mechanism so that it can purge the surface of the conveyor belt 9 to be detected to improve the cleanliness of the surface of the conveyor belt 9 to be detected. On the basis of detecting the cleanliness of the surface of the conveyor belt 9, the image acquisition sensor 13 can obtain a clearer surface image of the conveyor belt 9 to be detected in real time, and transmit the image to the image analysis equipment for analysis by wired or wireless means. By using image processing algorithms and deep learning technologies, the wear position, wear area, wear depth and other information are accurately measured, thereby realizing the automatic detection of the wear of the conveyor belt 9 to be detected. It has the advantages of non-contact, high precision, and strong real-time performance. Compared with manual inspection, it can improve the detection accuracy and detection precision, and does not require human intervention, saving human resources. Based on the acquired wear information of the conveyor belt 9 to be detected, the conveyor belt 9 to be detected can be replaced only after the wear reaches a specified degree, thereby saving material resources.

[0035] A supporting mechanism is provided under the conveyor belt 9 to be detected to provide support for the image acquisition sensor 13 and the purge mechanism. In this embodiment, the supporting mechanism includes a first support rod 2, a second support rod 15 and a third support rod 19 distributed in a triangular shape. The first support rod 2, the second support rod 15 and the third support rod 19 are connected by a connecting rod. The triangular distribution can improve the structural stability. A cross bar 3 is connected between the first support rod 2 and the second support rod 15. The image acquisition sensor 13 is arranged on the cross bar 3, and the purge mechanism is arranged on the third support rod 19.

[0036] The image acquisition sensor 13 is set on the cross bar 3 through the angle adjustment mechanism, and the purge mechanism is set on the third support rod 19 through the angle adjustment mechanism. The angle adjustment mechanism can adjust the direction of the image acquisition sensor 13 and the direction of the purge mechanism, so as to facilitate the selection of appropriate areas for shooting and purge according to needs.

[0037] The conveyor belt wear detection device also includes a lighting device 4. The lighting area of ​​the lighting device 4 covers the shooting area of ​​the image acquisition sensor 13, providing sufficient light for shooting, which helps to improve the shooting clarity and thus improve the detection accuracy. On the basis of the image acquisition sensor 13 being adjusted by the angle adjustment mechanism, the lighting device 4 is set on the cross bar 3 through the angle adjustment mechanism so as to be adjusted following the adjustment of the visual sensor.

[0038] The lighting device 4 may be a strip-shaped or other shaped LED light source, and the optimal angle of its illumination direction relative to the illumination direction of the image acquisition sensor 13 is about 30° to 60°.

[0039] The two ends of the cross bar 3 can be additionally arranged on the first support bar 2 and the second support bar 15 through an angle adjustment mechanism, thereby improving the adjustment freedom of the visual sensor and the lighting device 4 by adjusting the angle of the cross bar 3.

[0040] The angle adjustment mechanisms at various locations in this embodiment include a plum blossom rubber head 8, a U-shaped clamp 27, a positioning screw and a positioning member 28. Each component can be made of stainless steel to improve its service life. The U-shaped clamp 27 is clamped on the rod body, and the two arms of the U-shaped clamp 27 are correspondingly provided with through holes. The positioning screw is passed through the through hole, and one end of the positioning screw is threadedly connected to the plum blossom rubber head 8, and the other end is fixedly connected to the positioning member 28. The positioning member 28 is provided with a positioning hole for the rod body to be fixedly connected to the angle adjustment mechanism to pass through, and a locking threaded hole 29 perpendicular to the positioning hole. The locking threaded hole 29 is connected to the positioning hole, and a locking screw is threadedly connected to the locking threaded hole 29. An elastic gasket is provided on the end of the plum blossom rubber head 8 close to the U-shaped clamp 27. The specific usage principle is: first, on the basis that the locking screw and the plum blossom rubber head 8 are not locked, the rotating positioning member is adjusted around the axis of the positioning screw. The two arms of the U-shaped clamp 27 move toward each other and hold the rod body tightly to complete the locking. After locking, the two arms of the U-shaped clamp 27 move toward each other and hold the rod body tightly to complete the locking. After locking, the plum blossom rubber head 8 can still be used to drive the positioning member 28 to rotate to achieve fine-tuning of the angle by screwing the wrench. This structure can not only adjust the position of the angle mechanism to be adjusted by adjusting the position of the U-shaped clamp 27 and the rod body, but also adjust the direction of the angle mechanism to be adjusted. It is only necessary to set a rod body that penetrates the positioning hole on the angle mechanism to be adjusted. If the angle mechanism to be adjusted itself is in the shape of a rod body, the rod-shaped part of the angle mechanism to be adjusted can be directly inserted into the positioning hole.

[0041] In other embodiments, the angle adjustment of the angle-adjustable mechanism can also be achieved through a ball-joint connection structure with a locking bolt. Of course, the ball-joint structure is only suitable for single-point hinges, such as lighting equipment 4 and image acquisition sensors 13, but cannot be used for double-point hinge structures such as the cross bar 3.

[0042] For the angle adjustment of the image acquisition sensor 13, a more precise angle adjustment mechanism can also be selected, such as a pitch adjustment screw structure with a scale mark. The specific structure is: an adjustment rod is fixedly set on the image acquisition sensor 13, and one end of the adjustment rod is rotatably connected to a base fixed on the cross bar 3. The outer surface of the base is provided with a scale mark along the rotation direction of the adjustment rod. At the same time, a screw is threadedly connected to the base, and the screw is screwed to abut the adjustment rod to lock the relative position of the adjustment rod and the base. This structure can achieve precise adjustment of the shooting direction of the image acquisition sensor 13, and can achieve locking of the inclination angle of 0 to 45° between the shooting direction and the vertical line, so as to optimize the image acquisition of the wear area of ​​the conveyor belt 9 to be detected.

[0043] The first support rod 2, the second support rod 15 and the third support rod 19 are connected to the support plate 16, and the support plate 16 is slidably set on the bottom plate 17 through a slide rail slider structure. The slide rail 5 of the slide rail slider structure is parallel to the conveying direction of the conveyor belt 9 to be detected. In this embodiment, two rows of sliders 6 are arranged at the bottom of the support plate 16, and each row has multiple sliders 6. Two slide rails 5 are arranged on the bottom plate 17, and the sliders 6 in each row are slidably set on a single slide rail 5; through the sliding support plate 16, the shooting position of the image acquisition sensor 13 can be actively adjusted to achieve large-scale image acquisition.

[0044] The sliding of the support plate 16 can be automatically controlled by a screw transmission mechanism or an electric telescopic rod or other structures.

[0045] The conveyor belt wear detection device also includes a scraping mechanism, which includes a scraper 10 and a triangular support frame 11. The scraper 10 is arranged on the triangular support frame 11, and the conveyor belt 9 to be detected is supported by the belt support frame 20. The belt support frame 20 is provided with a plurality of adjustment threaded holes from bottom to top. The triangular support frame 11 is connected to the adjustment threaded holes through screws. The height of the scraper 10 can be adjusted to adapt to the height of the bend of the conveyor belt 9 to be detected by connecting the triangular support frame 11 to the adjustment threaded holes at different heights. The pressure applied by the scraper 10 on the conveyor belt 9 to be detected can be adjusted by adjusting the tightness of the screw on the triangular support frame 11, thereby adjusting the scraping effect. The scraping mechanism can actively scrape off debris that cannot be blown off the conveyor belt 9 to be detected, such as wet and sticky impurities, to help improve the shooting effect of the visual sensor, thereby improving the detection accuracy.

[0046] The purge mechanism includes an air gun 12 and at least one air manifold 24, the air manifold 24 is connected to the belt support frame 20 through a connecting frame 23, the nozzle of the air gun 12 adopts a tungsten steel wear-resistant nozzle, and is connected to the pipeline of the air supply mechanism through a quick-plug air pipe joint. The purge area of ​​the air gun 12 corresponds to the unphotographed area to the side of the conveyor belt 9 to be detected in the shooting area of ​​the image acquisition sensor 13, that is, it corresponds to the position in front of the shooting area. The air manifold 24 includes multiple purge pipes, and the material of the purge pipe is selected from corrosion-resistant and wear-resistant metals, such as stainless steel pipes. The multiple purge pipes are connected to the air manifold 24. The flow chamber is connected, the diversion chamber and the air gun 12 are connected to the air supply mechanism, and multiple purging pipelines are arranged along the width direction of the conveyor belt 9 to be detected. The purging areas of the multiple purging pipelines cover the conveyor belt 9 to be detected, so as to achieve comprehensive purging of dust on the surface of the conveyor belt 9 to be detected. The air gun 12 can achieve strong purging for smaller areas, and cooperate with the large-area purging of the air manifold 24 to improve the cleaning effect of impurities such as dust that are easy to blow off, and form an airtight effect to prevent external dust from entering the visual sensor area, thereby ensuring the shooting effect of the visual sensor and improving the detection accuracy.

[0047] Solenoid valves may be provided between the air gun 12 and the air supply mechanism, and between the air manifold 24 and the air supply mechanism, to control the purge frequency of the air gun 12 and the air manifold 24, and to automatically start the cleaning operation according to a preset time interval.

[0048] The gas supply mechanism can use a compressed gas cylinder or an air pump 18, and a pressure reducing valve is set at the output end of the gas supply mechanism to adjust the output high-pressure gas to a pressure range suitable for nozzle injection. The pressure reducing valve can automatically adjust the gas pressure according to the preset pressure value; a pressure sensor can be installed in the gas transmission path to monitor the gas pressure in real time, and the pressure sensor is connected to the control system. When the pressure deviates from the preset value, the control system can adjust the operating status of the air pump 18 or adjust the opening of the pressure reducing valve to maintain pressure stability.

[0049] The conveyor belt wear detection device also includes a cleaning mechanism 7, which includes a brush 26, an L-shaped transmission rod 25 and a drive motor 22. The drive motor 22 can be a stepper motor. The brush 26 is connected to the drive motor 22 through the L-shaped transmission rod 25. Specifically, the brush 26 is fixed to one end of the L-shaped transmission rod 25, and the other end of the L-shaped transmission rod 25 is connected to the drive motor 22 through a coupling or a key transmission. The bristles of the brush 26 and the L-shaped transmission rod 25 form a U-shaped structure. The lens surface of the image acquisition sensor 13 is located on the movement path of the brush 26. The brush 26 can be used to actively clean the lens of the visual sensor to ensure the cleanliness of the lens, improve the shooting effect of the visual sensor, and thereby improve the detection accuracy.

[0050] The bristles of the brush 26 are arranged radially to improve the cleaning effect on the lens.

[0051] The driving motor 22 may be directly disposed on the image acquisition sensor 13 to move along with the image acquisition sensor 13 . The driving motor 22 is controlled by a control system.

[0052] A cover 14 is provided on the base plate 17 to protect the internal structure. The top opening of the cover 14 ensures the normal use of structures such as the image acquisition sensor 13, the lighting device 4, and the air gun 12. The air supply equipment and the image acquisition and control box 1 can be provided on the base plate 17. The cover 14 can be formed by bending galvanized sheet metal.

[0053] An inspection door is provided on the cover 14 , and a silicone sealing strip is embedded in the door frame to facilitate maintenance personnel to inspect the internal structure. The inspection door can be a magnetic inspection door 21 .

[0054] During actual use, the image acquisition sensor 13 and the conveyor belt 9 to be detected are started. During the rotation of the conveyor belt 9 to be detected, the image acquisition sensor 13 captures the surface image of the conveyor belt 9 to be detected in real time, and transmits the image to the image analysis equipment for analysis to obtain the wear condition of the conveyor belt 9 to be detected. During the shooting process of the image acquisition sensor 13, the air gun 12 and the air manifold 24 can be used to blow the surface of the conveyor belt 9 to be detected, the scraper 10 can be used to scrape off the debris that cannot be blown off the surface of the conveyor belt 9 to be detected, and the brush 26 can be used to clean the lens of the image acquisition sensor 13 to improve the shooting effect of the image acquisition sensor 13.

[0055] Adaptive changes based on actual needs are all within the scope of protection of the present invention.

[0056] It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0057] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A conveyor belt wear detection device, characterized in that: It includes an image acquisition sensor, a purge mechanism and an air supply mechanism. The image acquisition sensor is set toward the conveyor belt to be detected, the image acquisition sensor is connected to the image analysis equipment, the air outlet of the purge mechanism is set corresponding to the conveyor belt to be detected, and the air supply mechanism is connected to the purge mechanism.

2. The conveyor belt wear detection device according to claim 1, characterized in that: The conveyor belt wear detection device also includes a support mechanism arranged below the conveyor belt to be detected, the support mechanism includes a first support rod, a second support rod and a third support rod distributed in a triangle, the first support rod, the second support rod and the third support rod are connected by a connecting rod, a cross bar is connected between the first support rod and the second support rod, the image acquisition sensor is arranged on the cross bar, and the purge mechanism is arranged on the third support rod.

3. The conveyor belt wear detection device according to claim 2, characterized in that: The image acquisition sensor is arranged on the crossbar through an angle adjustment mechanism, and the purge mechanism is arranged on the third support rod through an angle adjustment mechanism.

4. The conveyor belt wear detection device according to claim 2, characterized in that: The conveyor belt wear detection device further includes a lighting device, the lighting area of ​​the lighting device covers the shooting area of ​​the image acquisition sensor, and the lighting device is arranged on the crossbar through an angle adjustment mechanism.

5. The conveyor belt wear detection device according to claim 2, characterized in that: The two ends of the crossbar are respectively arranged on the first support rod and the second support rod through an angle adjustment mechanism.

6. The conveyor belt wear detection device according to any one of claims 3 to 5, characterized in that: The angle adjustment mechanism includes a plum blossom rubber head, a U-shaped clip, a positioning screw and a positioning piece. The U-shaped clip is clamped on the rod body. The two arms of the U-shaped clip are correspondingly provided with through holes. The positioning screw is passed through the through holes. One end of the positioning screw is threadedly connected to the plum blossom rubber head, and the other end is fixedly connected to the positioning piece. The positioning piece is provided with a positioning hole for the rod body fixedly connected to the angle adjustment mechanism to pass through, and a locking threaded hole perpendicular to the positioning hole. The locking threaded hole is connected to the positioning hole, and a locking screw is threadedly connected to the locking threaded hole.

7. The conveyor belt wear detection device according to claim 2, characterized in that: The first support rod, the second support rod and the third support rod are connected with a support plate, and the support plate is slidably arranged on the bottom plate through a slide rail slider structure, and the slide rail of the slide rail slider structure is parallel to the conveying direction of the conveyor belt to be detected.

8. The conveyor belt wear detection device according to claim 1, characterized in that: The conveyor belt wear detection device also includes a scraping mechanism, which includes a scraper and a triangular support frame. The scraper is arranged on the triangular support frame. The conveyor belt to be detected is supported by a belt support frame. The belt support frame is provided with multiple adjustment threaded holes from bottom to top, and the triangular support frame is connected to the adjustment threaded holes through a screw.

9. The conveyor belt wear detection device according to claim 1, characterized in that: The purging mechanism includes an air gun and at least one air manifold. The purging area of ​​the air gun is set to the unphotographed area on the upward side of the conveyor belt to be detected in the shooting area of ​​the image acquisition sensor. The air manifold includes multiple purging pipes. The multiple purging pipes are connected to the diversion chamber. The diversion chamber and the air gun are connected to the air supply mechanism. The multiple purging pipes are arranged along the width direction of the conveyor belt to be detected. The purging areas of the multiple purging pipes cover the conveyor belt to be detected.

10. The conveyor belt wear detection device according to claim 1, characterized in that: The conveyor belt wear detection device also includes a cleaning mechanism, which includes a brush, an L-shaped transmission rod and a drive motor. The brush is connected to the drive motor through the L-shaped transmission rod, and the lens surface of the image acquisition sensor is located on the movement path of the brush.

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