Image acquisition device for belt tearing detection

Abstract

The utility model discloses an image acquisition device for belt tearing detection, which comprises one or more image acquisition units, and each image acquisition unit comprises a shell, a camera and a windshield wiper device. The shell comprises a cover plate made of a transparent material; the camera is arranged in the shell, a lens of the camera faces a belt on which image information is to be collected, and the cover plate is arranged between the lens and the belt; the windshield wiper device comprises a windshield wiper head and a windshield wiper driving device, the windshield wiper driving device is in driving connection with the windshield wiper head, and the windshield wiper head is arranged on the outer side of the cover plate and connected with the outer surface of the cover plate in an attached mode. The image acquisition device provided by the utility model can acquire clearer and high-quality belt images, so that the precision and accuracy of belt tearing detection are improved.

Description

Technical Field

[0001] This utility model relates to the field of belt detection and image acquisition technology, and in particular to an image acquisition device for belt tear detection. Background Technology

[0002] Belt conveyors are a type of continuous conveying equipment widely used by many enterprises. They are widely used in the feeding process of iron and steel and non-ferrous metal metallurgy and smelting, as well as in the material conveying or loading and unloading of minerals in mineral processing, petroleum, chemical, light industry, building materials and port terminals. With the need for digital and intelligent upgrading and transformation, they are gradually developing towards high-precision connection of production processes, high-accuracy metering assistance, and high reliability of safe production operation.

[0003] Conveyor belts, as a crucial component of belt conveyors, account for over 40% of the total cost of the machine and are a key component of hazard inspection for industrial safety. However, due to the working environment, enterprises have long been plagued by belt failures, especially in the feeding processes of steel and non-ferrous metal smelting, and in the loading and unloading processes of large enterprises such as bulk cargo terminals, mines, and power plants. High temperatures, corrosion, and prolonged friction from sharp materials often lead to belt tearing accidents. Furthermore, dust and dim lighting in production environments affect the clarity of visual and machine vision recognition. A longitudinal tear in a conveyor belt worth hundreds of thousands or even tens of millions of yuan not only causes economic losses due to motor damage but also results in quality losses in metal smelting and even damage to related equipment, leading to personnel safety accidents. It also consumes significant manpower and time for repair or replacement, severely impacting the normal safe operation of the enterprise.

[0004] The above background information is provided only to assist in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this application, nor does it necessarily provide technical guidance. In the absence of clear evidence that the above information was disclosed before the filing date of this application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] The purpose of this invention is to provide an image acquisition device for belt tear detection, which can acquire clearer, higher-quality belt images.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An image acquisition device for detecting belt tearing, the image acquisition device comprising one or more image acquisition units, each image acquisition unit including a housing, a camera, and a wiper unit; wherein...

[0008] The outer casing includes a cover plate made of a transparent material;

[0009] The camera is housed inside the housing, and the lens of the camera is positioned toward the belt from which image information is to be acquired. The cover plate is positioned between the lens and the belt.

[0010] The wiper device includes a wiper head and a wiper drive unit. The wiper drive unit is driven and connected to the wiper head. The wiper head is disposed on the outside of the cover plate and is attached to the outer surface of the cover plate.

[0011] Furthermore, based on any or a combination of the aforementioned technical solutions, the wiper drive device includes a motor, the motor being disposed inside the housing, and the output shaft of the motor being fixedly connected to one end of the wiper head.

[0012] Furthermore, any one or a combination of the aforementioned technical solutions may also include a limiting device;

[0013] The limiting device is connected to the wiper head and is configured to limit the sweeping amplitude of the wiper head; or, the limiting device is connected to the motor and is configured to limit the rotation angle of the motor's output shaft.

[0014] Furthermore, following any one or a combination of the aforementioned technical solutions, the wiper head is connected to the output shaft of the motor via a connecting part;

[0015] The connecting part passes through the housing and is sealed to the housing.

[0016] Furthermore, in accordance with any or a combination of the aforementioned technical solutions, an oil seal seat is also included, wherein the connecting portion and the housing are sealed together by the oil seal seat.

[0017] Furthermore, in accordance with any or a combination of the aforementioned technical solutions, the image acquisition unit further includes a supplementary light;

[0018] The fill light is mounted on the housing, or the fill light is mounted separately from the housing.

[0019] Furthermore, following any one or a combination of the aforementioned technical solutions, the number of image acquisition units is multiple, and the multiple image acquisition units are distributed below the belt along a first direction, which intersects with the conveying direction of the belt.

[0020] Furthermore, in accordance with any or a combination of the aforementioned technical solutions, the system further includes a support, which is disposed below the belt and whose length direction intersects with the conveying direction of the belt;

[0021] The multiple image acquisition units are evenly distributed along the length of the bracket.

[0022] Furthermore, in accordance with any or a combination of the aforementioned technical solutions, angle adjustment devices are provided on both sides of the bracket;

[0023] The angle adjustment device includes a fixed base and a rotating base. The fixed base is configured to be installed on the transmission frame where the belt is located. The rotating base is fixedly connected to the bracket and rotatably connected to the fixed base.

[0024] Furthermore, following any one or a combination of the foregoing technical solutions, the outer casing is provided with a window, the cover plate is disposed on the side where the window is located and covers the window, and the lens is positioned facing the window; and / or,

[0025] It also includes a camera bracket, which is fixedly installed inside the housing, and the camera is mounted on the camera bracket.

[0026] The beneficial effects of the technical solution provided by this utility model are as follows:

[0027] a. The image acquisition device provided by this utility model seals the camera with a shell and a transparent cover plate, which can not only ensure that the lens is not contaminated and keep the lens clean, but also allow the camera to acquire image information of the belt through the transparent cover plate. The surface of the transparent cover plate can be cleaned by the wiper device. Even in dusty bulk cargo terminals, mines, metallurgical fields, etc., clear belt image information can be acquired. Furthermore, by setting up a supplementary light, clear and high-quality belt image information can be acquired even in dark environments.

[0028] b. This utility model can meet the detection requirements of belts of different widths by uniformly distributing multiple image acquisition units along the length of the bracket, and by intersecting the conveying direction of the belt along the length of the bracket.

[0029] c. This utility model can conveniently and efficiently adjust the shooting direction of the image acquisition device relative to the belt through the angle adjustment device to obtain better image acquisition quality. Attached Figure Description

[0030] 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 only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A perspective view of an image acquisition unit provided as an exemplary embodiment of the present invention;

[0032] Figure 2 A first-angle schematic diagram of an image acquisition unit without a cover plate, provided as an exemplary embodiment of the present invention;

[0033] Figure 3 A second-angle schematic diagram of an image acquisition unit without a cover plate, provided as an exemplary embodiment of the present invention;

[0034] Figure 4 A schematic diagram of the internal structure of an image acquisition unit provided as an exemplary embodiment of the present invention;

[0035] Figure 5 A schematic diagram of an image acquisition device at a first angle, provided as an exemplary embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of an image acquisition device from a second angle, provided as an exemplary embodiment of the present invention.

[0037] The reference numerals in the attached drawings include: 10-outer shell, 11-cover plate, 20-camera, 21-lens, 22-camera bracket, 30-wiper assembly, 31-wiper head, 32-wiper drive assembly, 50-fill light, 60-bracket, 70-angle adjustment device, 71-fixed base, 711-through hole, 712-arc hole, 72-rotating base. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 should fall within the protection scope of the present invention.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, apparatus, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0040] In one embodiment of this utility model, an image acquisition device for belt tear detection is provided. The image acquisition device includes one or more image acquisition units. See [link to relevant documentation]. Figure 1 system Figure 4 The image acquisition unit includes a housing 10, a camera 20, and a wiper device 30.

[0041] The outer casing 10 includes a cover plate 11 made of a transparent material;

[0042] The camera 20 is disposed inside the housing 10, and the lens 21 of the camera 20 is positioned facing the belt to which image information is to be acquired. The cover plate 11 is disposed between the lens 21 and the belt.

[0043] The wiper device 30 includes a wiper head 31 and a wiper drive device 32. The wiper drive device 32 is drivenly connected to the wiper head 31. The wiper head 31 is disposed on the outside of the cover plate 11 and is attached to the outer surface of the cover plate 11.

[0044] like Figures 1 to 4 As shown, the image acquisition unit includes a camera bracket 22, which is fixedly installed inside the housing 10, and the camera 20 is mounted on the camera bracket 22. A window 12 is provided on the housing 10, and a cover plate 11 is provided on the side of the window 12 and covers the window 12. The lens 21 is positioned facing the window 12 to acquire image information of the belt.

[0045] In this embodiment, the wiper drive device 32 includes a motor, which is disposed inside the housing 10. The output shaft of the motor is fixedly connected to one end of the wiper head 31. The wiper head 31 is connected to the output shaft of the motor via a connecting part; the connecting part passes through the housing 10 and is sealed to the housing 10. Preferably, as shown... Figure 1 and Figure 4As shown, the connecting part is sealed to the outer casing 10 by an oil seal seat 40.

[0046] The image acquisition unit also includes a limiting device. The limiting device is connected to the wiper head 31 and is configured to limit the sweeping amplitude of the wiper head 31; or, the limiting device is connected to the motor and is configured to limit the rotation angle of the motor's output shaft.

[0047] The image acquisition unit also includes a fill light 50. The fill light 50 can be mounted on the housing 10, or it can be... Figure 5 and Figure 6 As shown, the fill light 50 is separated from the housing 10, that is, the fill light 50 is located on the side of the housing 10.

[0048] The image acquisition device provided in this embodiment encloses the camera with a housing and a transparent cover, ensuring the lens remains clean and uncontaminated while allowing the camera to capture image information of the conveyor belt through the transparent cover for belt tear detection. A wiper device cleans the surface of the transparent cover, ensuring clear conveyor belt images even in dusty environments such as bulk cargo terminals, mines, and metallurgical plants. Furthermore, the inclusion of a supplementary light ensures clear, high-quality conveyor belt images can be acquired even in low-light conditions.

[0049] See Figure 5 and Figure 6 The image acquisition device further includes a bracket 60 and an angle adjustment device 70. The bracket 60 is positioned below the belt, and its length direction intersects the belt's conveying direction. Multiple image acquisition units are evenly distributed along the length direction of the bracket 60, meeting the detection requirements of belts of varying widths.

[0050] Two angle adjustment devices 70 are disposed at both ends of the bracket 60. Each angle adjustment device 70 includes a fixed base 71 and a rotating base 72. The fixed base 71 is configured to be mounted on the transmission frame on which the belt is located. The rotating base 72 is fixedly connected to the bracket 60 and rotatably connected to the fixed base 71.

[0051] like Figure 6As shown, the fixed base 71 is provided with a through hole 712 and an arc-shaped hole 711. The rotating base 72 can rotate relative to the fixed base 71 about the center of the through hole 712 via a shaft passing through the through hole 712. A limiting shaft passing through the arc-shaped hole 711 and fixedly connected to the rotating base 72 makes the rotation of the rotating base 72 relative to the fixed base 71 easier to adjust, and after adjusting the position of the rotating base 72 relative to the fixed base 71, it is easier to fix the two relatively. The angle adjustment device 70 allows for convenient and efficient adjustment of the shooting direction of the image acquisition device relative to the belt to obtain better image acquisition quality.

[0052] In other embodiments, the bracket 60 may be omitted, and multiple image acquisition units may be directly distributed below the belt along a first direction, which intersects the conveying direction of the belt.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An image acquisition device for detecting belt tearing, characterized in that, The image acquisition device includes one or more image acquisition units, each of which includes a housing (10), a camera (20), and a wiper device (30); wherein, The outer casing (10) includes a cover plate (11) made of a transparent material; The camera (20) is disposed inside the housing (10), and the lens (21) of the camera (20) is positioned facing the belt to which image information is to be acquired. The cover plate (11) is disposed between the lens (21) and the belt. The wiper device (30) includes a wiper head (31) and a wiper drive device (32). The wiper drive device (32) is driven to the wiper head (31). The wiper head (31) is disposed on the outside of the cover plate (11) and is attached to the outer surface of the cover plate (11).

2. The image acquisition device for belt tear detection according to claim 1, characterized in that, The wiper drive device (32) includes a motor, which is disposed inside the housing (10), and the output shaft of the motor is fixedly connected to one end of the wiper head (31).

3. The image acquisition device for belt tear detection according to claim 2, characterized in that, It also includes a limiting device; The limiting device is connected to the wiper head (31) and is configured to limit the sweeping amplitude of the wiper head (31); or, the limiting device is connected to the motor and is configured to limit the rotation angle of the output shaft of the motor.

4. The image acquisition device for belt tear detection according to claim 2, characterized in that, The wiper head (31) is connected to the output shaft of the motor via a connecting part; The connecting part passes through the housing (10) and is sealed to the housing (10).

5. The image acquisition device for belt tear detection according to claim 4, characterized in that, It also includes an oil seal seat (40), through which the connecting part is sealed to the housing (10).

6. The image acquisition device for belt tear detection according to claim 1, characterized in that, The image acquisition unit also includes a fill light (50); The fill light (50) is disposed on the housing (10), or the fill light (50) is disposed separately from the housing (10).

7. The image acquisition device for belt tear detection according to claim 1, characterized in that, The number of image acquisition units is multiple, and the multiple image acquisition units are distributed below the belt along a first direction, which intersects with the conveying direction of the belt.

8. The image acquisition device for belt tear detection according to claim 7, characterized in that, It also includes a bracket (60) disposed below the belt, and the length direction of the bracket (60) intersects the conveying direction of the belt; Multiple image acquisition units are evenly distributed along the length of the bracket (60).

9. The image acquisition device for belt tear detection according to claim 8, characterized in that, Angle adjustment devices (70) are provided on both sides of the bracket (60); The angle adjustment device (70) includes a fixed seat (71) and a rotating seat (72). The fixed seat (71) is configured to be installed on the transmission frame where the belt is located. The rotating seat (72) is fixedly connected to the bracket (60) and rotatably connected to the fixed seat (71).

10. The image acquisition device for belt tear detection according to claim 1, characterized in that, A window (12) is provided on the outer casing (10), a cover plate (11) is provided on the side where the window (12) is located and covers the window (12), and a lens (21) is provided facing the window (12); and / or, It also includes a camera bracket (22), which is fixedly installed inside the housing (10), and the camera (20) is mounted on the camera bracket (22).

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