Belt longitudinal tear detection device

Abstract

The application discloses a belt longitudinal tearing detection device, which is installed on a conveying mechanism through a fixed supporting rod and is composed of a first detection module and two second detection modules. The modules are connected through rotating connection to adapt to the cross section of the belt. An adjusting connecting rod in the first detection module is matched with a compression spring to slidably adjust the distance between the housings to adapt to the width of the belt. An adjusting assembly is automatically wound and unwound on the detection belt through a storage roller and a torsional spring, so that the tension stability is ensured. The adjusting assembly drives a second rotating roller to ascend and descend through a lead screw, so that the inclination angle of the detection belt is accurately adjusted to adapt to the surface arc of the belt. A limiting assembly quickly locks the position of the housing through a ball and a positioning hole. The device realizes the cooperative adaptation of the mechanical structure and the sensing detection, eliminates the detection blind area, improves the detection precision and stability, is convenient to install and maintain, and is suitable for complex industrial scenes such as mines and ports.

Description

Technical Field

[0001] This application belongs to the field of belt inspection technology, and specifically relates to a belt longitudinal tear detection device. Background Technology

[0002] In industrial sectors such as mining, ports, and metallurgy, belt conveyors are crucial equipment for the continuous transport of materials, and their operational stability directly impacts production efficiency and operational safety. Longitudinal belt tears are one of the most serious conveyor failures, typically caused by punctures from sharp foreign objects, material jamming, or long-term wear. If not detected promptly, they can lead to belt breakage, material leakage, and even equipment damage, resulting in significant economic losses and safety hazards. Therefore, real-time and accurate detection of longitudinal belt tears is of paramount importance.

[0003] In the existing technology, traditional belt longitudinal tear detection devices are mostly fixed structures, which cannot be flexibly adjusted according to the belt width and surface curvature (such as V-belts and grooved belts). They are prone to forming detection blind spots at the belt edge or bending section, resulting in missed detections or false detections.

[0004] Therefore, developing a belt longitudinal tear detection device with adjustable capabilities has become an urgent technical problem to be solved in the industrial field. Utility Model Content

[0005] This application provides a belt longitudinal tear detection device, which, by setting an adjustable detection module and a linkage adjustment mechanism, enables adaptive detection of belts of different specifications, thereby solving the problems of existing detection devices being unable to flexibly adapt to belts of different widths and curvatures and having detection blind spots.

[0006] To achieve the above objectives, this application provides a belt longitudinal tear detection device, which is fixedly mounted on a conveying mechanism by two fixed support rods. The device includes a detection mechanism disposed between the two fixed support rods. The detection mechanism consists of a first detection module and two second detection modules. The ends of the two second detection modules that are far apart from each other are symmetrically rotated and disposed at the top ends of the two fixed support rods. The two ends of the first detection module are rotatably disposed at the ends of the two second detection modules that are close to each other.

[0007] The first detection module includes two housings rotatably mounted on two second detection modules. Each housing contains a partition plate. The bottoms of the two housings are slidably connected to the partition plates via the same adjusting rod. Compression springs are provided between the two ends of the adjusting rod and the two housings. An adjustment assembly is provided between the top of each housing and the partition plate. A detection belt is connected between the two adjustment assemblies.

[0008] In one embodiment, the first detection module and the second detection module have the same structure.

[0009] In one embodiment, the adjustment assembly includes a guide groove extending through the bottom of the housing, a first guide roller being provided on the side of the guide groove away from the adjustment link, a receiving roller being rotatably disposed between the partition plate and the top of the housing via a bearing seat, a torsion spring being provided at the rotatable connection between the receiving roller and the bearing seat, and the end of the detection belt being wound around the receiving roller via the first guide roller.

[0010] In one embodiment, the housing is provided with an adjustment assembly connected to the detection belt located between the first guide roller and the receiving roller, the adjustment assembly being used to adjust the tilt angle of the detection belt on the side away from the adjustment link.

[0011] In one embodiment, the adjustment assembly includes two limiting vertical rails symmetrically fixed on both sides of the guide groove, a slider is slidably disposed in the limiting vertical rail, a second rotating roller is rotatably disposed between the two sliders, and the detection belt is attached to the second rotating roller.

[0012] In one embodiment, a lead screw is rotatably disposed inside one of the limiting vertical rails, the lead screw is threadedly connected to the slider, and a turntable is disposed at one end of the lead screw extending out of the housing.

[0013] In one embodiment, limit components are symmetrically arranged at both ends of the adjusting link. The limit components include a limit slot formed at one end of the adjusting link near the housing. An adjusting spring is arranged in the limit slot, and a limit ball is arranged on the adjusting spring. The limit ball protrudes out of the limit slot.

[0014] In one embodiment, the shell wall of the housing is provided with a plurality of positioning holes arranged linearly through the position of the limiting ball.

[0015] In one embodiment, a fixing nut is provided at the rotatable connection between the second detection module and the fixed support rod.

[0016] Compared with the prior art, the beneficial effects of this application are: By adjusting the linkage and compression spring, the distance between the two housings can be flexibly adjusted to accommodate belts with different longitudinal cross-sectional shapes. At the same time, the tension of the detection belt is automatically adjusted when the distance between the housings is adjusted, ensuring that the detection belt can perform crack detection on the belt in a stable state, thereby improving the accuracy and reliability of the detection.

[0017] The adjustment assembly, through the structure of a lead screw, slider, and second roller, can precisely adjust the tilt angle of the detection belt to adapt to different surface curvatures between the bottom and sides of the belt, effectively eliminating blind spots and improving adaptability to belts with complex cross-sections. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall belt longitudinal tear detection device provided in this application; Figure 2 A schematic diagram of the first detection module of the belt longitudinal tear detection device provided in this application; Figure 3 An enlarged schematic diagram of point C of the belt longitudinal tear detection device provided in this application; Figure 4 An enlarged schematic diagram of point D of the belt longitudinal tear detection device provided in this application; Figure 5 A schematic diagram of the adjustment assembly of the belt longitudinal tear detection device provided in this application; Figure 6 An enlarged schematic diagram of point A of the belt longitudinal tear detection device provided in this application; Figure 7 This is an enlarged schematic diagram of section B of the belt longitudinal tear detection device provided in this application.

[0020] Explanation of reference numerals in the attached drawings: 1. Conveying mechanism; 2. Fixed support rod; 3. Detection mechanism; 4. First detection module; 42. Adjusting connecting rod; 43. Housing; 44. Partition plate; 45. Compression spring; 46. Adjustment assembly; 461. First guide roller; 462. Shaft seat; 463. Guide groove; 464. Receiving roller; 465. Detection belt; 47. Limiting assembly; 471. Limiting slot; 472. Adjusting spring; 473. Limiting ball; 474. Positioning hole; 48. Adjusting assembly; 481. Limiting vertical rail; 482. Second rotating roller; 483. Smooth rod; 484. Turntable; 5. Fixed nut; 7. Second detection module. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0022] See Figures 1 to 7 As shown, the belt longitudinal tear detection device provided in this application is fixedly mounted on the conveying mechanism 1 by two fixed support rods 2. It includes a detection mechanism 3 set between the two fixed support rods 2. The detection mechanism 3 consists of a first detection module 4 and two second detection modules 7. The ends of the two second detection modules 7 that are far apart from each other are symmetrically rotated and mounted on the top ends of the two fixed support rods 2. The two ends of the first detection module 4 are rotatably mounted on the ends of the two second detection modules 7 that are close to each other.

[0023] During installation, two fixed support rods 2 are fixed to both sides of the conveying mechanism 1. After fixing, the first detection module 4 and two second detection modules 7 are connected in sequence to form the detection mechanism 3. After the connection is completed, the connection angle between the first detection module 4 and the two second detection modules 7 is adjusted so that it finally adapts to the longitudinal cross-sectional shape of the belt conveyed on the conveying mechanism 1, ensuring that the detection mechanism 3 can fully detect the longitudinal tearing of the belt and avoid detection blind spots.

[0024] The first detection module 4 includes two housings 43 that are rotatably mounted on two second detection modules 7. Each housing 43 has a partition plate 44 inside. The bottom of the two housings 43 and the partition plate 44 are slidably connected by the same adjusting rod 42. Compression springs 45 are provided between the two ends of the adjusting rod 42 and the two housings 43. An adjusting component 46 is provided between the top of each housing 43 and the partition plate 44. A detection belt 465 is connected between the two adjusting components 46.

[0025] When adjusting the longitudinal cross-sectional shape of the belt, the relative position between the movable housing 43 and the adjusting rod 42 is changed according to the width of the bottom of the belt. That is, the distance between the two housings 43 is adjusted to fit the width of the bottom of the belt. At the same time, the compression spring 45 is compressed or stretched during the adjustment process. The potential energy stored in the compression and stretching of the compression spring 45 can provide sufficient elastic force to maintain the stability of the connection between the housing 43 and the adjusting rod 42, and prevent the housing 43 from being displaced due to vibration or external force, which would affect the detection accuracy.

[0026] Furthermore, after changing the distance between the two housings 43, the tension of the same detection belt 465 is adjusted by the two adjustment components 46 to prevent the detection belt 465 from becoming loose or too tight due to the change in the distance between the housings 43, thereby ensuring that the detection belt 465 is always in a stable tension state to guarantee detection accuracy and reliability.

[0027] It should be noted that multiple evenly distributed sensor units are set on the detection belt 465. The sensor units can be photoelectric sensors or radar sensors, used to monitor the longitudinal tearing of the belt surface in real time.

[0028] Optionally, the first detection module 4 and the second detection module 7 have the same structure. After the first detection module 4 completes the adjustment of the bottom width of the belt, the second detection module 7 makes corresponding adjustments according to the tilt angle of the belt side, thereby ensuring that the detection mechanism 3 can accurately adapt to the longitudinal cross-sectional profile of the belt, preventing blind spots caused by different belt tilt angles, and improving the comprehensiveness and accuracy of detecting longitudinal tears in the belt.

[0029] Optionally, the adjustment assembly 46 includes a guide groove 463 extending through the bottom of the housing 43. A first guide roller 461 is provided on the side of the guide groove 463 away from the adjustment link 42. A receiving roller 464 is rotatably disposed between the partition plate 44 and the top of the housing 43 via a bearing 462. A torsion spring is provided at the rotatable connection between the receiving roller 464 and the bearing 462. The end of the detection belt 465 is wound around the receiving roller 464 via the first guide roller 461.

[0030] In this embodiment, the bearing seat 462 is mounted on the isolation plate 44. When the distance between the two housings 43 changes, the take-up roller 464 automatically adjusts the take-up and take-up length of the detection belt 465 under the action of the torsion spring, thereby adapting to the tension changes caused by the change in distance. The stable tension of the detection belt 465 ensures that the monitoring effect of the sensor unit will not be affected by loosening or excessive tightness during the longitudinal tear detection of the belt. At the same time, the design of the guide groove 463 and the first guide roller 461 can effectively reduce the frictional resistance of the detection belt 465 during operation, and improve the smoothness and response sensitivity of the detection belt 465 during adjustment.

[0031] Optionally, the housing 43 is provided with an adjustment component 48 connected to the detection belt 465 located between the first guide roller 461 and the receiving roller 464. The adjustment component 48 is used to adjust the tilt angle of the detection belt 465 on the side away from the adjustment link 42.

[0032] Optionally, the adjustment assembly 48 includes two limiting vertical rails 481 symmetrically fixed on both sides of the guide groove 463, a slider is slidably arranged in the limiting vertical rails 481, a second rotating roller 482 is rotatably arranged between the two sliders, and the detection belt 465 is attached to the second rotating roller 482.

[0033] In this embodiment, when the curvature of the belt at the connection between the bottom and side of the belt changes, the slider slides up and down within the limiting vertical rail 481, causing the second rotating roller 482 to adjust its height position. This relatively changes the tilt angle of the detection belt 465 against the second rotating roller 482 and the first rotating roller 461, allowing the detection belt 465 to match the curvature of the belt surface. At the same time, it effectively detects the curved parts of the belt, preventing blind spots and dead angles in the detection. This further improves the adaptability and detection accuracy of the detection mechanism to longitudinal tears in different parts of the belt, ensuring a stable and reliable detection process.

[0034] Optionally, a lead screw is rotatably mounted inside one of the limiting vertical rails 481. The lead screw is threadedly connected to the slider, and a turntable 484 is mounted on one end of the lead screw extending out of the housing 43. During adjustment, rotating the turntable 484 drives the lead screw to rotate, thereby driving the slider to move up and down within the limiting vertical rail 481, realizing the adjustment of the height position of the second rotating roller 482. This allows the detection belt 465 to better adapt to changes in the curvature of the belt surface, improving detection accuracy and stability.

[0035] Optionally, limit components 47 are symmetrically arranged at both ends of the adjusting link 42. The limit components 47 include a limit slot 471 opened at one end of the adjusting link 42 near the housing 43. An adjusting spring 472 is arranged in the limit slot 471. A limit ball 473 is arranged on the adjusting spring 472 and protrudes out of the limit slot 471.

[0036] Optionally, multiple positioning holes 474 are linearly arranged through the shell wall of the housing 43 corresponding to the positions of the ball 473.

[0037] In this embodiment, when adjusting the distance between the two housings 43, the limiting ball 473 is first pressed inward relative to the limiting slot 471, so that the limiting ball 473 disengages from the positioning hole 474 on the surface of the housing 43 and enters the limiting slot 471, thereby releasing the limiting fixation of the housing 43. Then, the distance between the two housings 43 is adjusted according to the required belt width. After the adjustment is in place, the limiting ball 473 is released, and the adjusting spring 472 pushes the limiting ball 473 to re-engage into the positioning hole 474 at the corresponding position on the surface of the housing 43, thereby achieving stable limiting and rapid positioning between the adjusting rod 42 and the housing 43, thus improving the applicability and ease of operation of the detection device.

[0038] Optionally, a fixing nut 5 is provided at the rotatable connection between the second detection module 7 and the fixed support rod 2. After the installation positions of the first detection module 4 and the second detection module 7 are adjusted, the fixing nut 5 at the rotatable connection between the second detection module 7 and the fixed support rod 2 is rotated to fix the angle between the second detection module 7 and the fixed support rod 2, so that the detection mechanism 3 maintains a stable working posture.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A belt longitudinal tear detection device, fixedly mounted on a conveying mechanism (1) by two fixed support rods (2), characterized in that, The invention includes a detection mechanism (3) provided between the two fixed support rods (2). The detection mechanism (3) consists of a first detection module (4) and two second detection modules (7). The ends of the two second detection modules (7) that are far apart from each other are symmetrically rotated and set at the top of the two fixed support rods (2). The two ends of the first detection module (4) are rotatably set at the ends of the two second detection modules (7) that are close to each other. The first detection module (4) includes two housings (43) respectively rotatably mounted on two second detection modules (7). Each housing (43) is provided with a partition plate (44). The bottom of the two housings (43) and the partition plate (44) are slidably connected by the same adjusting rod (42). Both ends of the adjusting rod (42) are provided with compression springs (45) between them and the two housings (43). An adjusting component (46) is provided between the top of each housing (43) and the partition plate (44). A detection belt (465) is connected between the two adjusting components (46).

2. The belt longitudinal tear detection device according to claim 1, characterized in that: The first detection module (4) and the second detection module (7) have the same structure.

3. The belt longitudinal tear detection device according to claim 1, characterized in that: The adjustment assembly (46) includes a guide groove (463) extending through the bottom of the housing (43). A first guide roller (461) is provided on the side of the guide groove (463) away from the adjustment link (42). A storage roller (464) is rotatably provided between the partition plate (44) and the top of the housing (43) via a bearing (462). A torsion spring is provided at the rotatable connection between the storage roller (464) and the bearing (462). The end of the detection belt (465) is wound around the storage roller (464) via the first guide roller (461).

4. The belt longitudinal tear detection device according to claim 3, characterized in that: The housing (43) is provided with an adjustment component (48) connected to the detection belt (465) located between the first guide roller (461) and the receiving roller (464). The adjustment component (48) is used to adjust the tilt angle of the detection belt (465) away from the adjustment link (42).

5. The belt longitudinal tear detection device according to claim 4, characterized in that: The adjustment component (48) includes two limiting vertical rails (481) symmetrically fixed on both sides of the guide groove (463). A slider is slidably arranged in the limiting vertical rail (481), and a second rotating roller (482) is rotatably arranged between the two sliders. The detection belt (465) is attached to the second rotating roller (482).

6. The belt longitudinal tear detection device according to claim 5, characterized in that: One of the limiting vertical rails (481) is rotatably provided with a lead screw, which is threadedly connected to the slider, and a turntable (484) is provided at one end of the lead screw that extends out of the housing (43).

7. The belt longitudinal tear detection device according to any one of claims 1-6, characterized in that: Limiting components (47) are symmetrically arranged at both ends of the adjusting link (42). The limiting component (47) includes a limiting slot (471) opened at one end of the adjusting link (42) near the housing (43). An adjusting spring (472) is arranged in the limiting slot (471). A limiting ball (473) is arranged on the adjusting spring (472). The limiting ball (473) protrudes out of the limiting slot (471).

8. The belt longitudinal tear detection device according to claim 7, characterized in that: Multiple positioning holes (474) are linearly arranged on the shell wall of the housing (43) corresponding to the positions of the ball (473).

9. The belt longitudinal tear detection device according to claim 1, characterized in that: A fixing nut (5) is provided at the rotatable connection between the second detection module (7) and the fixed support rod (2).

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