Conveying device and conveying system

Abstract

The utility model relates to the technical field of mechanical transportation, in particular to a conveying device and a conveying system, and aims to solve the problem that the effect of a bearing belt deviation detection scheme in an existing conveying device is poor. Therefore, the conveying device comprises an installation support, a conveying belt and a conveying belt, the first monitoring element and the second monitoring element are symmetrically arranged in the width direction of the bearing belt; the first monitoring element and the second monitoring element are both in communication connection with the controller, and the first monitoring element and the second monitoring element are used for outputting a first deviation signal to the controller when the bearing belt deviates by the first displacement amount so that the controller can control the working state of the conveying device according to the first deviation signal. The bearing belt deviation monitoring element of the conveying device does not make contact with the bearing belt, the monitoring accuracy can be improved, a system can make a quick response conveniently, and therefore the stability and reliability of a conveying system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transportation, and specifically provides a conveying device and a conveying system. Background Art

[0002] As a material transportation equipment, belt conveyors often experience belt deviation during operation due to factors such as installation errors and belt movement. This deviation will not only affect product transmission and subsequent processes, but may also cause belt damage, such as belt edge wear, wrinkles and cracks. Therefore, it is necessary to correct the belt deviation in time to ensure the normal operation of the belt conveyor.

[0003] In the related art, a vertical roller contact deviation switch is usually used to detect whether the belt is deviating. When the belt is deviating, the detection device triggers a signal through the contact between the vertical roller and the belt, so as to detect and control the deviation. However, this method has some disadvantages. First, due to the frequent friction between the vertical roller and the belt, the detection device will be worn out, which may affect its accuracy and reliability; secondly, due to the influence of wear and other factors, this detection device is prone to failure, resulting in malfunction. Therefore, the vertical roller mechanism needs to be maintained and serviced frequently to ensure its normal operation. This not only reduces the working efficiency of the equipment, but also increases the manpower and material costs.

[0004] In view of this, a new belt deviation detection solution is needed in the art to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, that is, to solve the problem that the detection scheme of belt deviation in the existing conveying device is not effective.

[0006] In a first aspect, the utility model provides a conveying device, comprising:

[0007] A mounting bracket, on which a supporting belt for placing the object to be conveyed is provided;

[0008] A first monitoring element and a second monitoring element, which are symmetrically arranged along the width direction of the support belt;

[0009] The first monitoring element and the second monitoring element are both communicatively connected to the controller, and the first monitoring element and the second monitoring element are used to output a first offset signal to the controller when the supporting belt deviates by a first displacement amount, so that the controller controls the working state of the conveying device according to the first offset signal.

[0010] Optionally, it also includes:

[0011] A third monitoring element and a fourth monitoring element, which are symmetrically arranged along the width direction of the supporting belt, and the third monitoring element and the fourth monitoring element are both located between the first monitoring element and the second monitoring element;

[0012] The third monitoring element and the fourth monitoring element are both connected to the controller for communication, and the third monitoring element and the fourth monitoring element are used to output a second displacement signal to the controller when the supporting belt deviates by a second displacement amount, so that the controller controls the working state of the conveying device according to the second displacement signal and / or the first displacement signal;

[0013] The second displacement is greater than the first displacement.

[0014] Optionally, the first monitoring element, the second monitoring element, the third monitoring element and the fourth monitoring element are all non-contact sensors.

[0015] Optionally, the first monitoring element, the second monitoring element, the third monitoring element and the fourth monitoring element are all covered with protective covers.

[0016] Optionally, the conveying device further comprises:

[0017] An ultrasonic detection device is arranged on the mounting bracket, the ultrasonic detection device is located above the supporting belt, the ultrasonic detection device is communicatively connected with the controller, and is used to detect the tearing state of the surface of the supporting belt.

[0018] Optionally, the ultrasonic detection device includes an ultrasonic transmitter and an ultrasonic receiver, and both the ultrasonic transmitter and the ultrasonic receiver are located above the supporting belt.

[0019] Optionally, the ultrasonic detection device is an electromagnetic ultrasonic detection device.

[0020] Optionally, the conveying device further comprises:

[0021] The roller assembly comprises a first roller, a second roller and a third roller which are sequentially arranged along the width direction of the supporting belt, wherein the first roller and the third roller are symmetrically arranged relative to the second roller.

[0022] Optionally, the first monitoring element and the second monitoring element are located above the first roller, the ultrasonic detection device is located above the second roller, and the third monitoring element and the fourth monitoring element are located above the third roller.

[0023] In a second aspect, the utility model provides a conveying system, comprising a conveying device as described in any one of the first aspects.

[0024] When the above technical solution is adopted, the deviation monitoring element of the conveying device provided by the utility model does not contact the support belt, which can avoid interference with the operation of the support belt and affect the normal operation of the support belt. At the same time, the monitoring element is not easily worn and contaminated by the support belt, which improves the accuracy of monitoring, prolongs the service life of the monitoring element, and reduces the frequency of maintenance and replacement.

[0025] The conveying system provided by the utility model can monitor the deviation and tearing of the support belt in real time, and trigger corresponding alarms or stop instructions when necessary. This automated monitoring system greatly improves the accuracy and efficiency of detection, helps to timely discover and deal with problems with the support belt, and also reduces manpower and material costs, ensuring the safe and stable operation of the conveying system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0027] Figure 1 It is a schematic diagram of the structure of the conveying device provided in the embodiment of the utility model;

[0028] Figure 2 It is a structural block diagram of the conveying system provided by the embodiment of the utility model.

[0029] List of reference numerals:

[0030] 10- conveying device, 1- mounting bracket, 2- supporting belt, 31- first roller, 32- second roller, 33- third roller, 41- first monitoring element, 42- second monitoring element, 43- third monitoring element, 44- fourth monitoring element, 5- protective cover, 6- ultrasonic detection device, 61- ultrasonic transmitter, 62- ultrasonic receiver, 63- electromagnet, 7- controller, 71- CPU module, 72- power module, 73- HMI touch screen module, 74- drive module, 75- signal conversion module, 76- data storage module, 77- industrial communication module, 78- DCS system field I / O station, 79- MIS system or other peripheral monitoring system. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the protection scope of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0032] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, ordinal numbers such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Please refer to Figure 1 and 2 , is a conveying device 10 provided by an embodiment of the utility model. The conveying device 10 uses a supporting belt 2 or a conveyor belt to transport articles.

[0035] Specifically, the conveying device 10 provided in this embodiment includes a mounting bracket 1, on which a support belt 2 and its supporting components, such as rollers or drums, are arranged. In this embodiment, the structure of the roller assembly is used as the supporting component of the support belt 2. The support belt 2 slides along the roller under the action of the driving module 74. The device can be used to transport materials such as cement and coal.

[0036] Furthermore, the conveying device 10 further includes a first monitoring element 41 and a second monitoring element 42, both of which are fixed on the mounting bracket 1. The supporting belt 2 has a first side and a second side opposite to each other in the width direction, and the first monitoring element 41 and the second monitoring element 42 are respectively arranged on the first side and the second side in the width direction of the supporting belt 2, and the arrangement positions of the two are symmetrical about the mid-vertical plane of the supporting belt 2. Among them, the width direction of the supporting belt 2 is a direction perpendicular to the conveying direction.

[0037] In a preferred embodiment, the first monitoring element 41 and the second monitoring element 42 are both disposed above the support belt 2, and the roller assembly is located below the support belt 2. The first monitoring element 41 is disposed close to the first side, and the second monitoring element 42 is disposed close to the second side.

[0038] When the support belt 2 is operating normally, the roller assembly is covered by the support belt 2, and the first monitoring element 41 and the second monitoring element 42 located above the support belt 2 cannot sense the roller assembly. However, when the support belt 2 deviates during operation, it will deviate from its original position, causing the roller assembly originally covered by the support belt 2 to be exposed. This deviation will cause the second monitoring element 42 to sense the existence of the roller, and determine the deviation of the support belt 2 through this signal.

[0039] For example, when the support belt 2 deviates to the first side, the roller assembly near the second side of the support belt 2 will be gradually exposed. At the same time, the exposure degree of the roller assembly on the support belt 2 is proportional to the displacement.

[0040] When the displacement of the support belt 2 exceeds the position of the positive projection of the second monitoring element 42 on the support belt 2, the second monitoring element 42 will detect the roller assembly. This method of detecting the change of the target object by measuring the environmental changes around the target object enables the second monitoring element 42 to accurately know the displacement of the support belt 2 and convert this information into a displacement signal to be transmitted to the controller 7.

[0041] Of course, when the supporting belt 2 deviates toward the second side, the monitoring principle of the first monitoring element 41 is similar to that of the second monitoring element 42 .

[0042] By arranging monitoring elements on both sides of the support belt 2, the system can fully monitor the deviation of the support belt 2. Regardless of whether the support belt 2 deviates to the first side or the second side, the conveying system can fully and accurately monitor the deviation, which can facilitate the system to respond quickly, thereby improving the stability and reliability of the conveying system.

[0043] Furthermore, the controller 7 controls the working state of the conveying device 10 according to the deviation signal to prevent the supporting belt 2 from further deviating and causing greater losses.

[0044] Specifically, by setting the distance between the first monitoring element 41 and the first side edge of the supporting belt 2 and the distance between the second monitoring element 42 and the second side edge of the supporting belt 2 , the first displacement of the supporting belt 2 can be controlled.

[0045] For example, when the positions of the first monitoring element 41 and the second monitoring element 42 are set closer to or above the edges of the two sides of the support belt 2, it means that the first displacement is set to be small. In this case, if the support belt 2 is slightly offset, the monitoring element can detect it in time and send an offset signal to the controller 7. After receiving the offset signal, the controller 7 can send an alarm signal to remind the operator to pay attention and make necessary adjustments.

[0046] When the positions of the first monitoring element 41 and the second monitoring element 42 are set to be far from the support belt 2, it means that the first displacement is set to be large. At this time, the controller 7 will receive the displacement signal only when a large displacement occurs. Once the controller 7 receives the displacement signal, it should immediately send a signal to stop the support belt 2 to avoid further displacement and ensure the safe operation of the conveying system.

[0047] By reasonably setting the distance between the monitoring element and the edge of the supporting belt 2 , the setting of the first displacement amount can be flexibly adjusted according to actual conditions, thereby achieving accurate monitoring and control of the deviation of the supporting belt 2 .

[0048] Furthermore, the monitoring element does not contact the support belt 2, which can avoid interference with the operation of the support belt 2 and affect the normal operation of the support belt 2. At the same time, the monitoring element is not easily worn and contaminated by the support belt 2, which improves the accuracy of monitoring, extends the service life of the monitoring element, and reduces the frequency of maintenance and replacement.

[0049] In one embodiment, the conveying device 10 further includes a third monitoring element 43 and a fourth monitoring element 44, and the third monitoring element 43 and the fourth monitoring element 44 are both connected to the controller 7 for communication. Similar to the first monitoring element 41 and the second monitoring element 42, the third monitoring element 43 and the fourth monitoring element 44 are symmetrically arranged along the width direction of the support belt 2. The first monitoring element 41 and the second monitoring element 42 are used to monitor the first displacement of the support belt 2, and the third monitoring element 43 and the fourth monitoring element 44 are used to monitor the second displacement of the support belt 2.

[0050] Furthermore, the third monitoring element 43 and the fourth monitoring element 44 are both located between the first monitoring element 41 and the second monitoring element 42, so that the second displacement is greater than the first displacement. In one embodiment, the third monitoring element 43 is disposed close to the first monitoring element 41, and the second monitoring element 42 is disposed close to the fourth monitoring element 44.

[0051] Similar to the first monitoring element 41 and the second monitoring element 42 , the third monitoring element 43 and the fourth monitoring element 44 are used to monitor the second displacement of the supporting belt 2 and transmit the corresponding second displacement signal to the controller 7 .

[0052] Specifically, when the support belt 2 deviates by the first displacement, the controller 7 will only send out an alarm signal to remind the operator or related personnel to pay attention and deal with it in time. This alarm signal can help to warn of possible problems, but it is not necessary to stop the operation of the support belt 2 immediately.

[0053] When the support belt 2 deviates to the second displacement, it indicates that a more serious deviation has occurred, and the controller 7 will send a signal to stop the support belt 2 to ensure safety and avoid further deviation. This control method can take different countermeasures according to different deviation degrees to ensure the safety of equipment and personnel.

[0054] By setting two sets of monitoring elements and setting the two sets of monitoring elements at different positions, different deviation ranges of the support belt 2 can be monitored respectively, that is, different deviation amounts of the support belt 2 can be monitored. After receiving these signals, the controller 7 takes corresponding control measures according to the actual situation to ensure the stability and safety of the operation of the conveying device 10. Such a setting can improve the accuracy and response speed of the deviation detection of the support belt 2, and also help to improve the efficiency and reliability of the entire conveying system.

[0055] In one embodiment, the first monitoring element 41 , the second monitoring element 42 , the third monitoring element 43 and the fourth monitoring element 44 are all non-contact sensors.

[0056] The non-contact sensor can detect the position and state of the object by wireless or photoelectric signal, and has the advantages of high sensitivity, stability and accuracy. Using the non-contact sensor as a monitoring element can not only reduce the interference and damage to the support belt 2, but also achieve long-distance and high-precision monitoring. At the same time, the non-contact sensor can also reduce the maintenance cost of the system and improve the reliability of the equipment.

[0057] The non-contact sensor may specifically be a photoelectric sensor or a magnetoelectric sensor.

[0058] In a preferred embodiment, the roller assembly is made of metal, and the non-contact sensor is preferably an inductive sensor. The inductive sensor uses the change of inductance to detect the position of the metal object (such as the roller assembly). When the roller assembly enters the sensing area of ​​the sensor, the magnetic field in the sensing area will change, thereby causing the change of inductance. By detecting the change of inductance, the inductive sensor can accurately determine the offset position of the support belt 2 and output a corresponding signal to achieve accurate monitoring of the offset of the support belt 2.

[0059] In one embodiment, the first monitoring element 41, the second monitoring element 42, the third monitoring element 43 and the fourth monitoring element 44 are all covered with a protective cover 5. The protective cover 5 can prevent the monitoring elements from being affected by external factors such as object collision, chemical corrosion, dust or liquid splashing, thereby extending their service life and ensuring their normal operation.

[0060] In a preferred embodiment, the protective cover 5 is vertically arranged on the surface of the roller assembly, which can improve the detection accuracy of the deviation of the supporting belt 2 by the monitoring element.

[0061] Since the support belt 2 or conveyor belt of the conveying device 10 often conveys heavy-loaded conveying materials, such as cement, coal, etc., if the support belt 2 deviates from the center position of the roller assembly, during the conveying process, the friction between the support belt 2 and the roller assembly will be aggravated by the pressure of the material, thereby causing damage to the surface of the support belt 2, resulting in cracks, and in severe cases, the support belt 2 may be torn and broken. These problems will affect the normal operation of the support belt 2, and the deviation of the support belt 2 needs to be corrected or repaired in time.

[0062] In some related technologies, the detection of tearing of the support belt 2 usually requires clearing the materials on the support belt 2 first, and then performing manual or video visual inspection. There are several problems with this inspection method: first, the inspection workload is huge and requires a lot of manpower; second, since the inspection is carried out after the materials are cleared, there is a possibility of missed inspection or misjudgment; most importantly, the feedback of the test results is not real-time and there will be a large lag. This situation will not only reduce the operating time and work efficiency of the equipment, but also increase the cost of manpower and material resources.

[0063] Therefore, the conveying device 10 provided in this embodiment further includes an ultrasonic detection device 6 which is arranged on the mounting bracket 1 . The conveying system uses the ultrasonic detection device 6 to detect the tearing surface of the supporting belt 2 .

[0064] The principle of ultrasonic detection is that when ultrasonic waves encounter different obstacles, different echoes will be generated, thereby generating different reflection signals. The controller 7 can analyze the internal structure, surface state and possible defects or obstacles of the object based on the received reflection signals.

[0065] Furthermore, the ultrasonic detection device 6 includes a plurality of ultrasonic transmitters 61 and ultrasonic receivers 62, which are arranged at intervals along the width direction of the support belt 2, and are all in communication connection with the controller 7. The controller 7 is responsible for controlling the ultrasonic transmitter 61 to send ultrasonic signals at preset periodic intervals, and detecting the tear surface of the support belt 2 according to the signals received by the ultrasonic receiver 62.

[0066] Specifically, if the contact surface between the support belt 2 and the roller assembly is damaged or torn, a gap will be generated between the two. The gap generated will be different depending on the degree of damage or tearing.

[0067] These gaps cause the propagation path of the ultrasonic wave to change, thereby generating different feedback signals. The controller 7 analyzes and processes the reflected signals received by the ultrasonic receiver 62, and can identify and distinguish different degrees of tearing or damage, and convert this information into corresponding tearing diagrams for display.

[0068] For more information, see Figure 2 , the power module 72 of the controller 7 is used to power the entire conveying system. The CPU module 71 of the controller 7 collects the ultrasonic signal fed back by the ultrasonic detection device 6, converts the ultrasonic signal into a digital signal through the signal conversion module 75 and transmits it to the CPU module 71 for analysis and processing, and then combines the data in the analysis data storage module 76 and parameter data such as the offset signal, and uses the system software for comprehensive calculation and processing to generate a real-time tear expansion diagram of the support belt 2, and display it on the HMI touch screen module 73. The expansion diagram can show the tearing of the support belt 2. Once the tear area or depth at a certain place exceeds the preset upper limit, the HMI touch screen module 73 will automatically alarm, and the CPU module 71 will issue a stop command.

[0069] The stop command is transmitted to the DCS system on-site I / O station 78 through the industrial communication module 77 of the controller 7, and can also be uploaded to the MIS system or other peripheral monitoring system 79 through the industrial communication module 77 to remind the management personnel to carry out maintenance work on the support belt 2 conveyor. The maintenance personnel repair the damaged support belt 2 according to the tear expansion diagram alarm area displayed by the HMI touch screen module 73. During the repair process, the HMI touch screen module 73 can also display the cross-sectional repair area and thickness of the support belt 2, so that the maintenance personnel can complete the repair work quickly and accurately. After the repair is completed, the tear test is performed again to verify whether the repaired support belt 2 meets the normal use requirements.

[0070] In this way, the controller 7 can monitor the tearing of the support belt 2 in real time and trigger corresponding alarms or stop commands when necessary. This automated monitoring system greatly improves the accuracy and efficiency of detection, helps to timely discover and deal with problems with the support belt 2, and also reduces labor and material costs, ensuring the safe and stable operation of the conveying system.

[0071] In one embodiment, the ultrasonic transmitter 61 and the ultrasonic receiver 62 are both located above the supporting belt 2 to avoid direct contact with the supporting belt 2 and reduce interference, which is beneficial to the installation and maintenance of the ultrasonic detection device 6 .

[0072] In one embodiment, the ultrasonic detection device 6 is preferably an electromagnetic ultrasonic detection device 6. The electromagnetic ultrasonic detection device 6 includes an electromagnet 63 and an ultrasonic transmitter 61 and an ultrasonic receiver 62 connected to the electromagnet 63. The electromagnetic ultrasonic detection device 6 uses the electromagnetic field generated by the electromagnet 63 and the ultrasonic wave to more accurately detect the tearing of the support belt 2. The electromagnetic field can help guide the propagation of the ultrasonic signal and enhance the sensitivity and stability of the detection.

[0073] In one embodiment, the roller assembly of the conveying device 10 includes a first roller 31 , a second roller 32 and a third roller 33 which are sequentially arranged along the width direction of the supporting belt 2 , and the first roller 31 and the third roller 33 are symmetrically arranged relative to the second roller 32 .

[0074] Specifically, the second roller 32 is placed horizontally, and the first roller 31 is arranged obliquely upward, and forms an obtuse angle with the second roller 32. The third roller 33 is arranged symmetrically with the first roller 31 about the second roller 32, that is, the third roller 33 is also arranged obliquely upward, and its inclination direction is opposite to that of the first roller 31, and an obtuse angle is also formed between the third roller 33 and the first roller 31. In this way, the first roller 31, the second roller 32 and the third roller 33 form a trough structure.

[0075] The support belt 2 is laid flat on the surface of the first roller 31, the second roller 32 and the third roller 33 to form a groove structure. This structure makes it difficult for the conveyed objects to fall, and also reduces the shaking and deviation of the support belt 2 during the conveying process to a certain extent, thereby improving the stability of the conveying.

[0076] In one embodiment, the first monitoring element 41 and the second monitoring element 42 are located above the first roller 31 , and the first monitoring element 41 and the second monitoring element 42 can monitor the deviation of the supporting belt 2 toward the second side by cooperating with the first roller 31 .

[0077] Furthermore, the protective covers 5 of the first monitoring element 41 and the second monitoring element 42 are arranged perpendicular to the first roller 31 to improve the accuracy of the offset detection.

[0078] The third monitoring element 43 and the fourth monitoring element 44 are located above the third roller 33 . The third monitoring element 43 and the fourth monitoring element 44 can monitor the deviation of the supporting belt 2 toward the first side by cooperating with the third roller 33 .

[0079] Furthermore, the protective covers 5 of the third monitoring element 43 and the fourth monitoring element 44 are arranged perpendicular to the third roller 33 to improve the accuracy of the offset detection.

[0080] The ultrasonic detection device 6 is located above the second roller 32, so that its ultrasonic signal can be perpendicular to the supporting belt 2 in this area, and the ultrasonic signal attenuation on the vertical path is smaller, thereby ensuring that the signal strength received by the detection device is large enough, thereby improving the sensitivity and reliability of tear surface detection.

[0081] The utility model also provides a conveying system, including the conveying device 10 as described above. Since the conveying device 10 has the above characteristics and advantages, the conveying system can monitor the deviation and tearing of the support belt 2 in real time, and trigger corresponding alarms or stop instructions when necessary. This automated monitoring system greatly improves the accuracy and efficiency of detection, helps to timely discover and deal with problems with the support belt 2, and also reduces manpower and material costs, ensuring the safe and stable operation of the conveying system.

[0082] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A conveying device, characterized in that: include: A mounting bracket, on which a supporting belt for placing the object to be conveyed is provided; A first monitoring element and a second monitoring element, which are symmetrically arranged along the width direction of the support belt; A third monitoring element and a fourth monitoring element, which are symmetrically arranged along the width direction of the supporting belt, and the third monitoring element and the fourth monitoring element are both located between the first monitoring element and the second monitoring element; a controller, wherein the first monitoring element and the second monitoring element as well as the third monitoring element and the fourth monitoring element are all in communication connection with the controller, the first monitoring element and the second monitoring element are used to output a first offset signal to the controller when the supporting belt deviates by a first displacement amount, and the third monitoring element and the fourth monitoring element are used to output a second offset signal to the controller when the supporting belt deviates by a second displacement amount, so that the controller controls the working state of the conveying device according to the second offset signal and / or the first offset signal; The second displacement is greater than the first displacement.

2. The conveying device according to claim 1, characterized in that The first monitoring element, the second monitoring element, the third monitoring element and the fourth monitoring element are all non-contact sensors.

3. The conveying device according to claim 1, characterized in that: The first monitoring element, the second monitoring element, the third monitoring element and the fourth monitoring element are all covered with protective covers.

4. The conveying device according to any one of claims 1 to 3, characterized in that The conveying device also includes: An ultrasonic detection device is arranged on the mounting bracket, the ultrasonic detection device is located above the supporting belt, the ultrasonic detection device is communicatively connected with the controller, and is used to detect the tearing state of the surface of the supporting belt.

5. The conveying device according to claim 4, characterized in that: The ultrasonic detection device comprises an ultrasonic transmitter and an ultrasonic receiver, and both the ultrasonic transmitter and the ultrasonic receiver are located above the supporting belt.

6. The conveying device according to claim 4, characterized in that The ultrasonic detection device is an electromagnetic ultrasonic detection device.

7. The conveying device according to claim 4, characterized in that The conveying device also includes: The roller assembly comprises a first roller, a second roller and a third roller which are sequentially arranged along the width direction of the supporting belt, wherein the first roller and the third roller are symmetrically arranged relative to the second roller.

8. The conveying device according to claim 7, characterized in that The first monitoring element and the second monitoring element are located above the first roller, the ultrasonic detection device is located above the second roller, and the third monitoring element and the fourth monitoring element are located above the third roller.

9. A conveying system, characterized in that: Comprising the delivery device according to any one of claims 1 to 8.

Images