A mine belt conveyor tear detection device

Abstract

This application provides a tear detection device for mining conveyor belts, relating to the field of conveyor belt technology, including a conveyor belt assembly and a detection assembly. The conveyor belt assembly includes a support, idlers, and a belt. Two idlers are provided, each rotatably connected to both ends of the support. The belt drive is connected between the two idlers. The detection assembly includes a dust collection box, a sliding mechanism, and an eccentric wheel. The dust collection box is fixedly connected to the support, and the sliding mechanism is disposed within the dust collection box. This application utilizes a rotating eccentric wheel to periodically press against the belt, allowing the camera module to remain relatively stationary with the belt during image capture. This effectively improves image quality and avoids blurry photos. The detection assembly uses the dust collection box to remove dust from the belt before taking images, preventing excessive dust from affecting normal image capture during mineral transport and achieving more accurate detection results.

Description

Technical Field

[0001] This application relates to the field of belt conveyor technology, and more specifically, to a tear detection device for mining belt conveyors. Background Technology

[0002] Belt scratches and tears are a common type of belt damage on belt conveyors. During the material transport process, uneven stress, foreign objects blocking the belt can cause scratches and tears. The belt is the weakest point in the entire material transport process, and since the cost of the belt accounts for a large proportion of the cost of the transport equipment, this failure can cause significant economic losses.

[0003] In response, Chinese patent application number CN202220445070.8 discloses a belt tear detection device, which mainly uses a camera component above the belt conveyor to acquire an image of the belt to be inspected, and an embedded industrial control computer to determine the tear condition of the belt based on the belt image. This allows for real-time detection of belt tear conditions based on the embedded industrial control computer, enabling the determination of belt tearing even in the early stages of tearing without material leakage, thus improving the immediacy of belt tear monitoring.

[0004] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems:

[0005] 1. The camera component is set above the conveyor belt. However, when the conveyor belt is transporting materials, material will accumulate on the surface of the belt, making it impossible to capture the belt tearing situation where the material covers the area. At the same time, during the mining conveying process, there will be a lot of dust in the working environment. Without any dust removal structure, it will affect the normal shooting of the camera component. Furthermore, dust adhering to the camera surface will also cause the captured image to be blurry, which will ultimately affect the detection structure.

[0006] 2. Conveyor belts used in mines generally run at high speeds. If the camera shutter speed is not fast enough, the image will be blurry, making it difficult to detect small cracks through the photo. Summary of the Invention

[0007] To overcome the shortcomings of existing technologies, this application provides a tear detection device for mining conveyor belts, which can solve the problems mentioned in the background art.

[0008] The technical solution adopted by the embodiments of this application to solve its technical problem is: a tear detection device for mining belt conveyors, including a conveyor belt assembly and a detection assembly.

[0009] The conveyor belt assembly includes a support, idlers, and a belt. Two idlers are provided, and both idlers are rotatably connected to both ends of the support. The belt drive is connected between the two idlers. The detection assembly includes a dust collection box, a sliding mechanism, and an eccentric wheel. The dust collection box is fixedly connected to the support. The sliding mechanism is disposed inside the dust collection box. The eccentric wheel is rotatably connected to the sliding mechanism. A camera module is provided on the sliding mechanism. The eccentric wheel is movably pressed against the belt.

[0010] In one specific implementation, the dust collection box includes a box body and a partition. The box body is fixedly connected to the support, the partition is fixedly connected to the inner wall of the box body, and the belt moves through the box body and the partition.

[0011] In one specific implementation, the dust collection box further includes a scraper and an electric cylinder. Two scrapers are provided, one of which is fixedly connected to the box body, the electric cylinder is fixedly connected to the box body, the telescopic end of the electric cylinder is fixedly connected to the other scraper, and the two scrapers are slidably connected to the upper and lower surfaces of the belt, respectively.

[0012] In one specific implementation, the dust collection box further includes two brush rollers, both of which are rotatably connected to the box body.

[0013] In one specific implementation, a vacuum cleaner is also provided on the box.

[0014] In one specific implementation, the sliding mechanism includes a slide rail and a slider, the slide rail being fixedly connected to the inner wall of the box, and the slider being slidably connected to the slide rail.

[0015] In one specific implementation, the sliding mechanism further includes a support frame and a spring, the support frame being fixedly connected to the slider, and the two ends of the spring being fixedly connected to the support frame and the partition plate, respectively.

[0016] In one specific implementation, a motor is fixedly connected to the support frame, and the output end of the motor is connected to the eccentric wheel shaft.

[0017] In one specific implementation, the detection component further includes a supplementary light, which is fixedly connected to the inner wall of the box.

[0018] In one specific implementation, a sliding sleeve is provided on both the partition and the outlet at the end of the box.

[0019] The advantages of the embodiments of this application are:

[0020] Because of the use of a rotating eccentric wheel to periodically tighten the belt, the camera module can remain relatively stationary with the belt when taking pictures, thus effectively improving the shooting quality and avoiding blurry photos. The dust removal box is used to remove dust from the belt before taking pictures, so as to avoid the impact of excessive dust on normal shooting during mineral transportation and achieve more accurate detection results. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of the tear detection device for mining belt conveyors provided in the embodiments of this application;

[0022] Figure 2 A schematic diagram illustrating the connection structure between the belt and the dust collector box provided in this embodiment of the application;

[0023] Figure 3 A schematic diagram of the connection structure between the belt and the scraper provided in the embodiments of this application;

[0024] Figure 4 This is a schematic diagram of the connection structure between the belt and the eccentric wheel provided in an embodiment of this application.

[0025] In the diagram: 100-Conveyor belt assembly; 110-Support; 120-Idler roller; 130-Belt; 200-Detection component; 210-Dust collection box; 211-Box body; 212-Baffle; 213-Scraper; 214-Electric cylinder; 215-Brush roller; 216-Vacuum cleaner; 217-Sliding sleeve; 220-Sliding mechanism; 221-Slide rail; 222-Slider; 223-Upright frame; 224-Spring; 225-Motor; 230-Eccentric wheel; 240-Camera module; 250-Supplemental light. Detailed Implementation

[0026] The technical solution in this application embodiment is to solve the problems mentioned in the background art above, and the overall idea is as follows:

[0027] Please see Figure 1 A tear detection device for mining belt conveyors includes a conveyor belt assembly 100 and a detection assembly 200.

[0028] The detection component 200 uses a rotating eccentric wheel 230 to periodically press against the belt 130, so that the camera module 240 can remain relatively stationary with the belt 130 when taking pictures. This can effectively improve the shooting quality and avoid blurry photos. The detection component 200 uses a dust removal box 210 to remove dust from the belt 130 before taking pictures, so as to avoid the impact of excessive dust on normal shooting during the mineral transportation process and achieve a more accurate detection effect.

[0029] Please see Figures 1-4The conveyor belt assembly 100 includes a support 110, idlers 120, and a belt 130. There are two idlers 120, both of which are rotatably connected to both ends of the support 110. The belt 130 is driven between the two idlers 120. The detection assembly 200 includes a dust collector 210, a sliding mechanism 220, and an eccentric wheel 230. The dust collector 210 is fixedly connected to the support 110. The sliding mechanism 220 is disposed inside the dust collector 210. The eccentric wheel 230 is rotatably connected to the sliding mechanism 220. A camera module 240 is disposed on the sliding mechanism 220. The eccentric wheel 230 is movably pressed against the belt 130. Here, the belt 130 is driven by two idlers 120, passing through the dust collector 210 below. Dust removal is performed in the dust collector 210 to clean the surface of the belt 130, which is beneficial for taking accurate and clear photos. Then, it passes through the eccentric wheel 230. As the eccentric wheel 230 rotates, it periodically contacts and presses against the belt 130, allowing the sliding mechanism 220 to move synchronously with the belt 130. At this time, the camera module 240 on the sliding mechanism 220 takes a picture of the belt 130, and then transmits the image to an external industrial control computer for analysis and detection to determine if any tearing marks have occurred. Because the camera module 240 and the belt 130 are relatively stationary during synchronous movement... Therefore, the eccentric wheel 230 continues to rotate and then disengages from the belt 130. The sliding mechanism 220 automatically resets after losing synchronous power, ready to take another picture. In summary, the detection component 200 uses the rotating eccentric wheel 230 to periodically press against the belt 130, so that the camera module 240 can remain relatively stationary with the belt 130 when taking pictures, thus effectively improving the shooting quality and avoiding blurry pictures. The detection component 200 uses the dust removal box 210 to remove dust from the belt 130 before taking pictures, avoiding the impact of excessive dust on normal shooting during mineral transportation, and achieving a more accurate detection effect.

[0030] Please see Figure 2-4 The dust collection box 210 includes a box body 211 and a partition 212. The box body 211 is fixedly connected to the bracket 110, and the partition 212 is fixedly connected to the inner wall of the box body 211. A belt 130 movably passes through the box body 211 and the partition 212. Here, the partition 212 divides the inside of the box body 211 into two spaces: the front space is used for dust collection, and the rear space is used for taking pictures, thus preventing dust from affecting the picture quality.

[0031] Please see Figure 3The dust collection box 210 also includes a scraper 213 and an electric cylinder 214. There are two scrapers 213. One scraper 213 is fixedly connected to the box body 211, and the electric cylinder 214 is fixedly connected to the box body 211. The telescopic end of the electric cylinder 214 is fixedly connected to the other scraper 213. The two scrapers 213 are slidably connected to the upper and lower surfaces of the belt 130, respectively. Here, the belt 130 passes through two scrapers 213 before entering the box 211, which scrape off most of the attached dust. Specifically, one scraper 213 is fixed, while the other scraper 213 is movable via an electric cylinder 214. In the initial state, the fixed scraper 213 does not contact the belt 130. This is to avoid the possibility that some belts 130 may have anti-slip particles. If the belt 130 has a smooth surface, the electric cylinder 214 drives the scraper 213 to push upward, so that the two scrapers 213 clamp the belt 130 in the center. When the belt 130 passes through, the scraper 213 can hang off the dust attached to the belt 130.

[0032] Please see Figure 3 The dust collection box 210 also includes two brush rollers 215, both of which are rotatably connected to the box body 211. Here, the brush rollers 215 are driven to rotate by an external drive mechanism to further clean the belt 130 and further reduce the impact of dust adhesion on photography.

[0033] Please see Figure 2-3 A vacuum cleaner 216 is also installed on the box 211. Here, the cleaning methods of the scraper 213 and the brush roller 215 will generate a lot of floating dust, so the vacuum cleaner 216 is used to suck the dust out of the box 211.

[0034] Please see Figure 4 The sliding mechanism 220 includes a slide rail 221 and a slider 222. The slide rail 221 is fixedly connected to the inner wall of the housing 211, and the slider 222 is slidably connected to the slide rail 221. Here, the slider 222 slides on the slide rail 221, providing stable support for the sliding of the camera module 240. In this embodiment, limit buffer pads are provided at both ends of the slide rail 221 to limit the slider 222 and reduce the rebound force generated by the slider 222 hitting the buffer pads.

[0035] Please see Figure 4The sliding mechanism 220 also includes a support frame 223 and a spring 224. The support frame 223 is fixedly connected to the slider 222, and the two ends of the spring 224 are fixedly connected to the support frame 223 and the partition plate 212, respectively. Here, the eccentric wheel 230 is rotatably connected to the stand 223. Two camera modules 240 are provided and are respectively set at the upper and lower ends of the stand 223 to take pictures of the front and back of the belt 130. Specifically, when the eccentric wheel 230 is pressed against the belt 130, it can move the stand 223 and the belt 130 synchronously and stretch the spring 224. When the eccentric wheel 230 rotates a certain angle, it will disengage from the belt 130. At this time, the spring 224 will pull the stand 223 back to its original position for synchronous photography again. In this embodiment, a brake pad is also provided below the belt 130 at a position relative to the eccentric wheel 230. When the eccentric wheel 230 is pressed against the belt 130, the lower surface of the belt 130 will be slightly concave and press against the brake pad, producing the effect of locking the belt 130, which improves the connection force between the bracket 110 and the belt 130 and prevents slippage.

[0036] Please see Figure 4 A motor 225 is fixedly connected to the support frame 223, and the output end of the motor 225 is connected to the shaft of the eccentric wheel 230. Here, a servo motor 225 is used to control the rotational speed of the eccentric wheel 230, thereby adjusting the shooting cycle so that the shooting can cover the entire belt 130.

[0037] Please see Figure 4 The detection component 200 also includes a supplementary light 250, which is fixedly connected to the inner wall of the housing 211. Here, the supplementary light 250 is used to provide supplementary lighting for the camera module 240, which can increase the shutter speed of the camera module 240 and further reduce blurry images.

[0038] Please see Figure 2-4 Slip sleeves 217 are provided on both the partition 212 and the outlet at the end of the box 211. Here, after cleaning, the belt 130 passes through the slip sleeve 217 on the partition 212 into the photography area, and then passes through the slip sleeve 217 on the box 211. The slip sleeve 217 is used to limit the range of motion of the belt 130 and reduce the upward swaying of the belt 130, which is conducive to clear photography. It should be noted that no slip sleeve 217 is provided at the inlet of the belt 130 on the box 211 to avoid dust being scraped outside the box 211 from the opening of the box 211, causing environmental pollution.

[0039] In this application, the belt 130 is driven by two idler rollers 120, passes through the dust collection box 210 below, first passes through two scrapers 213 to scrape off most of the attached dust, and then passes through two brush rollers 215 for further cleaning to clean the surface of the belt 130, which is beneficial for taking accurate and clear photos. Then the belt 130 passes through the eccentric wheel 230, which is driven to rotate by the servo motor 225. The eccentric wheel 230 periodically contacts and presses against the belt 130, so that the support frame 223 and the support frame 22 The camera module 240 on the 3rd can move synchronously with the belt 130. At this time, the camera module 240 takes pictures of the belt 130 and then transmits the images to an external industrial control computer for analysis and detection to determine whether there are tear marks. Since the camera module 240 and the belt 130 are relatively stationary during synchronous movement, the shooting quality can be effectively improved and the blurry photos can be avoided. The eccentric wheel 230 continues to rotate and then disengages from the belt 130. At this time, the spring 224 pulls the stand 223 back to its original position for synchronous shooting again.

[0040] In summary, this application utilizes the rotating eccentric wheel 230 to periodically press against the belt 130, allowing the camera module 240 to remain relatively stationary with the belt 130 during image capture. This effectively improves image quality and prevents blurry photos. The detection component 200 uses the dust removal box 210 to remove dust from the belt 130 before taking images, preventing excessive dust from affecting normal image capture during mineral transport and achieving more accurate detection results.

[0041] It should be noted that the specific models and specifications of the idler roller 120, belt 130, scraper 213, electric cylinder 214, brush roller 215, vacuum cleaner 216, slide rail 221, slider 222, spring 224, motor 225, camera module 240 and supplementary light 250 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0042] The power supply and operating principles of the electric cylinder 214, vacuum cleaner 216, motor 225, camera module 240, and fill light 250 are clear to those skilled in the art and will not be described in detail here.

[0043] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A tear detection device for mining conveyor belts, characterized in that, include: The conveyor belt assembly includes a support frame, idlers, and a belt. Two idlers are provided, and both idlers are rotatably connected to both ends of the support frame. The belt drive is connected between the two idlers. The detection component includes a dust collection box, a sliding mechanism, and an eccentric wheel. The dust collection box is fixedly connected to the bracket. The sliding mechanism is disposed inside the dust collection box. The eccentric wheel is rotatably connected to the sliding mechanism. A camera module is disposed on the sliding mechanism. The eccentric wheel is movably pressed against the belt. The dust collection box includes a box body and a partition. The box body is fixedly connected to the bracket, and the partition is fixedly connected to the inner wall of the box body. The belt passes through the box body and the partition. The sliding mechanism includes a slide rail and a slider. The slide rail is fixedly connected to the inner wall of the box body, and the slider is slidably connected to the slide rail. The sliding mechanism also includes a stand and a spring. The stand is fixedly connected to the slider, and the two ends of the spring are fixedly connected to the stand and the partition, respectively.

2. The tear detection device for mining belt conveyors as described in claim 1, characterized in that, The dust collection box also includes a scraper and an electric cylinder. There are two scrapers, one of which is fixedly connected to the box body, and the electric cylinder is fixedly connected to the box body. The telescopic end of the electric cylinder is fixedly connected to the other scraper. The two scrapers are slidably connected to the upper and lower surfaces of the belt, respectively.

3. The tear detection device for mining belt conveyors as described in claim 2, characterized in that, The dust collection box also includes two brush rollers, both of which are rotatably connected to the box body.

4. The tear detection device for mining belt conveyors as described in claim 3, characterized in that, The box is also equipped with a vacuum cleaner.

5. The tear detection device for mining belt conveyors as described in claim 1, characterized in that, A motor is fixedly connected to the upright frame, and the output end of the motor is connected to the eccentric wheel shaft.

6. The tear detection device for mining belt conveyors as described in claim 5, characterized in that, The detection component also includes a supplementary light, which is fixedly connected to the inner wall of the box.

7. The tear detection device for mining belt conveyors as described in claim 5, characterized in that, Sliding sleeves are provided on both the partition and the outlet at the end of the box.

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