System and method for monitoring state of conveyor belt of conveyor belt arrangement, and corresponding conveyor belt arrangement

Abstract

The invention relates to a system (1) for monitoring the state of a conveyor belt (2) of a conveyor belt system (3), the invention relates to a scraper (1) for a motor vehicle, comprising:-a carrier shaft (4, 4 '),-a scraper section (5, 5') which is arranged on the carrier shaft (4, 4 ') and which is connected to the carrier shaft (4, 4') in a torque-transmitting manner,-a stationary carrier (8) having a holding bearing (9) in which the carrier shaft (4, 4 ') is rotatably mounted,-a movement element (11) which is arranged on the carrier (8) and is movably coupled to the carrier shaft (4, 4'), and-a sensor (10) for monitoring the state of the conveyor belt (2), in which the scraping section (5, 5 '), the carrier shaft (4, 4'), the carrier (8) and the moving element (11) interact such that a force acting on the scraping section (5, 5 ') is transmitted to the moving element (11), and in which the sensor (10) is arranged and configured such that the sensor (10) detects a characteristic variable, in particular a physical variable, of the moving element (11).

Description

Technical Field

[0001] The invention relates to a system for monitoring the state of a conveyor belt of a conveyor belt device. The system comprises a support shaft and at least one scraper section arranged on the support shaft and connected to the support shaft in a torque-transmitting manner. In addition, the system comprises at least one stationary support having a retaining bearing in which the support shaft is rotatably supported. The system also comprises a moving element arranged on the support and coupled to the support shaft in terms of movement, and a sensor for monitoring the state of the conveyor belt.

[0002] The invention further relates to a method for monitoring the condition of a conveyor belt of a conveyor belt system using a system of the aforementioned type.

[0003] Furthermore, the invention relates to a conveyor belt installation having a conveyor belt and a system of the aforementioned type. Background Art

[0004] Conveyor belt equipment uses a moving conveyor belt to transport bulk materials (such as sand, crushed stone, coal, ore, etc.) from one point to another. When the bulk material falls from the conveyor belt at the end of a bend, residual bulk material sometimes adheres to the conveyor belt. The conveyor belt scraper device may include a scraper section of the aforementioned type. The scraper section is used to scrape off the bulk material adhering to the conveyor belt.

[0005] Usually one or more first scraping sections are arranged directly at the deflection roller of the conveyor belt as so-called first scraper. On the conveyor belt lower branch, usually also have a second scraper behind the first scraper along the conveyor belt running direction.

[0006] The usually multiple scraper segments of the belt scraper arranged next to one another are fastened in an exchangeable manner on a usually rotationally adjustable and often also linearly adjustable support shaft which can extend transversely to the conveyor belt.

[0007] An adjustment device may be provided. The adjustment device is usually connected to one or both ends of the support shaft and can be configured to provide the necessary preload for the conveyor belt scraper device by means of a corresponding lifting structure or a preloaded spring. Sometimes the adjustment device has a drive motor. The drive motor is controlled by an electrical or electronic controller. If only one drive motor is mentioned at this time, this statement includes variants in which multiple drive motors are provided, in particular variants in which one drive motor is provided at each end of the support shaft.

[0008] In practice, control methods are known that allow the condition of the conveyor belt to be monitored visually. However, this requires a complex analysis of the measurement results and is also prone to errors, with high costs in terms of operation, maintenance and production. If damage or possible damage (for example, caused by adhering bulk material) is detected too late, this can lead to damage to the entire conveyor belt system or even to the downtime of the conveyor belt system, with inestimable subsequent costs. For example, if bulk material enters the drive system of the conveyor belt, the damage can be considerable.

[0009] Faults on the conveyor belt should be identified as early as possible, reliably and automatically, wherein false detection (i.e., judging a fault when there is actually no fault) should be avoided as much as possible. Preferably, when damage occurs, the damaged position on the conveyor belt is detected as accurately as possible. Summary of the invention

[0010] The object of the present invention is therefore to provide a system and a method for efficient and reliable monitoring of the state of a conveyor belt of a conveyor belt installation, in particular wherein the disadvantages of the prior art are to be avoided or at least substantially mitigated.

[0011] In order to achieve the proposed object, the present invention proposes a system for monitoring the state of a conveyor belt of a conveyor belt device.

[0012] The system comprises a support shaft and at least one scraper section arranged on the support shaft and connected to the support shaft in a torque-transmitting manner. A plurality of scraper sections can also be provided, which can in particular be arranged adjacent to one another on the support shaft. The scraper sections can be configured to ensure that conveyed material adhering to the conveyor belt is removed.

[0013] Furthermore, the system according to the invention comprises a stationary support having a retaining bearing in which the support shaft is rotatably supported. A moving element of the system is also arranged on the support, wherein the moving element is coupled to the support shaft in terms of movement. In particular, the moving element is connected to the support shaft in a rotationally and / or torsionally fixed manner.

[0014] According to the invention, the system has sensors for monitoring the state of the conveyor belt.

[0015] The scraper section, the support shaft and the carrier as well as the moving element interact in such a way that forces acting on the scraper section are transmitted to the moving element, wherein the sensor is arranged and configured such that it detects characteristic variables, in particular physical variables, of the moving element.

[0016] The invention enables monitoring of the state of a conveyor belt by means of a sensor and inferences about the state of the conveyor belt, preferably for damage detection. In experiments carried out when implementing the invention, it was surprisingly found that the sensor (the sensor can be arranged in particular on a support) can make inferences about the state of the conveyor belt by monitoring the moving element.

[0017] In particular, it can be provided, for example, that the scraper section is in contact with the conveyor belt, wherein upon contact with a damaged region of the conveyor belt the interaction of the scraper section with the conveyor belt changes, so that the force thus acting on the scraper section can be detected by means of a sensor by interaction with the moving element.

[0018] In particular, the moving element can also be mounted on the support in a movable manner, preferably in a pivotable manner. In particular, the sensor can ultimately interact with the moving element so that the sensor can at least indirectly detect changes in the position of the scraper end of the scraper section facing the conveyor belt and / or changes in the adjustment force to be applied in order to bring the scraper end into contact with the conveyor belt.

[0019] Preferably, a belt traction force which the conveyor belt exerts on the scraper end of the scraper section can be detected at least indirectly, in particular a change in the belt traction force can be detected.

[0020] It was discovered during the implementation of the present invention that the aforementioned changes may in turn indicate belt damage.

[0021] Therefore, according to the present invention, economical, efficient and stable monitoring of the conveyor belt can be achieved in a relatively simple manner.

[0022] In particular, according to the invention, it is possible to draw conclusions about the state of the conveyor belt by means of sensors and by the interaction of the moving element with the sensors, preferably for damage detection.

[0023] In particular, the load data or the measurement signals acquired by the sensor can be evaluated so that undershooting and / or overshooting of limit values ​​can be detected, the limit values ​​in particular delimiting a predetermined range.

[0024] In particular, according to the invention, possible damage events can be identified in a timely manner and in particular the extent of the possible damage can also be estimated. This preferably ensures a significant reduction in the operating costs and maintenance costs of the entire conveyor belt device.

[0025] Preferably, by connecting the moving element to the support shaft and in turn to the scraper section, the movement of the moving element can be detected at least indirectly by means of a sensor, from which inferences can be drawn about the conveyor belt. In particular, it can be sensed by means of the sensor when the support shaft or the scraper section undergoes such a change that the scraper section is out of contact with the conveyor belt or is no longer in contact.

[0026] In a particularly preferred embodiment of the invention, it is provided that the system has an adjustment device, by means of which the support shaft can be moved so that the surface of the scraper section, in particular the scraper end, comes into contact with the conveyor belt, wherein the adjustment device is arranged and / or supported on the holding device and is connected to the support shaft in a torque-transmitting manner. The moving element can be coupled to the adjustment device in terms of movement or be part of the adjustment device.

[0027] The adjusting device can in particular transmit an adjusting force to the scraper section, which brings the scraper end into contact with the conveyor belt. In the event of conveyor belt damage or belt damage, the adjusting force to be applied by the adjusting device can change, in particular can increase. According to the invention, this change in the adjusting force to be applied can be sensed in particular by means of a moving element and by means of a sensor.

[0028] Preferably, the adjustment device can be arranged and / or mounted on a support (in particular outside the conveyor belt), preferably arranged and / or mounted, preferably at least indirectly, on a deflection roller of the conveyor belt.

[0029] In particular, the sensor can sense when the scraper section is out of contact with the conveyor belt or is no longer in contact and the actuating force is changing or has changed as a result.

[0030] Finally, the adjustment device can apply a preload to the support shaft, which in turn causes the scraper section to rest with its scraper end against the conveyor belt with a desired preload. The preload must be high enough to stably remove the residual bulk material adhering to the conveyor belt, but the preload should preferably not be too high so that the conveyor belt is not damaged by the scraper section.

[0031] The adjusting device can interact with one or more scraper segments.

[0032] In particular, the adjustment device is arranged on the support shaft or is connected to the support shaft and therefore interacts with one or more scraper segments arranged on the support shaft.

[0033] Particularly preferably, the movement element can be configured as a freely rotatable lever mounted on a support or as a freely rotatable pendulum mounted on a support.

[0034] Preferably, the movement element is connected to the support shaft in a rotationally and / or torsionally fixed manner, as explained above. This arrangement of the movement element allows, in a particularly preferred embodiment, the movement element to be coupled in motion to the scraper section, in particular also via the support shaft, i.e. in particular also when the scraper section is connected to the support shaft in a rotationally fixed manner. Such changes of the scraper section, which indicate damage to the conveyor belt, can therefore be successfully detected or detected by the sensor via the connection via the support shaft.

[0035] Alternatively or additionally, it can be provided that the moving element is connected to the support shaft in such a way that a load on the support shaft causes a translational movement of the moving element. Such an arrangement or connection between the moving element and the support shaft enables at least indirect monitoring of the state of the conveyor belt by means of sensors as a function of the translational movement of the moving element, through the interaction between the support shaft and the scraper section and, on the other hand, through the interaction between the moving element and the support shaft.

[0036] Ultimately, changes in the movement of the moving element during the translational movement can indicate, based on a corresponding analysis, that the conveyor belt is damaged, which can be determined via the measurement data acquired by the sensor.

[0037] In another preferred configuration of this inventive concept, it can be provided that the sensor and the moving element are arranged and configured such that when the moving element moves, the moving element exerts a force on the sensor, in particular presses against the sensor or pulls the sensor.

[0038] In this case, in the normal state or unloaded state of the moving element, it can be provided that the moving element does not interact with the sensor.

[0039] In principle, however, in other embodiments it can also be provided that the moving element bears against the sensor even in the normal state or unloaded state.

[0040] By applying force, the sensor can determine whether there is damage on the conveyor belt and thus monitor the state of the conveyor belt. In particular, a change in force can be determined, which in turn enables the state of the conveyor belt to be inferred.

[0041] Preferably, the sensor is arranged and configured such that it senses a force applied to the sensor by the moving element. By sensing this force, the sensor can acquire a measurement signal, which in turn can be used to analyze and determine the state of the conveyor belt. The force can be sensed indirectly or directly. Indirect sensing of the force is understood in particular to mean that the sensor can acquire a physical variable associated with the force to be applied.

[0042] In another preferred configuration, the sensor is arranged and configured so that it senses a change in position or angular position of the moving element or an acceleration of the moving element. In this configuration of the moving element and the sensor, in particular a translational and rotational movement of the moving element or an acceleration can be sensed. Thus, as an alternative or in addition to the force, a deflection of the moving element or a change in the movement of the moving element can be used to detect damage. The sensor can thus be configured in different ways, but each can achieve a conclusion on the state of the conveyor belt.

[0043] In a particularly preferred configuration, the sensor has a strain gauge or is configured as a strain gauge, a force sensor, a piezoelectric sensor, a potentiometer, an angle sensor, an acceleration sensor or a magnetic proximity sensor. The above configuration of the sensor enables the state of the conveyor belt to be monitored by the interaction of the moving element with the sensor. According to the invention, it has been found that different measuring principles can be used to determine the state of the conveyor belt, in particular by a change in the force applied to the scraper section. Finally, the sensor is particularly configured to enable conveyor belt damage detection.

[0044] The configuration of the sensor as a strain gauge is particularly preferred, since this ensures an efficient, cost-effective and reliable measuring method. When using a strain gauge, the force applied by the moving element to the sensor can therefore be sensed at least indirectly. The force associated therewith can therefore be used to infer the state of the conveyor belt.

[0045] Preferably, alternatively or additionally, the sensor is configured such that a deflection of the moving element can be measured, in particular, wherein the sensor is configured as an optical sensor or an ultrasonic sensor. The deflection of the moving element, which can be acquired at least indirectly by the sensor, can also be used as an inference about the state of the sensor and about the change of the scraping section.

[0046] Particularly preferably, the sensor is arranged in a fixed position on the support. The fixed position arrangement of the sensor on the support enables the sensor to interact with the moving element in a relatively simple manner, in particular, wherein the sensor is arranged adjacent to the moving element. The sensor can preferably abut the moving element. The moving element can in turn be supported on the support in a movable manner, in particular in a rotatable manner. The support can thus ensure the interaction between the sensor and the moving element.

[0047] Preferably, the sensor is arranged in a housing of the support. The housing can at least partially surround the sensor and preferably protect the sensor from external influences and / or from mechanical damage. In addition, the housing can ensure that the sensor is protected from dirt, which is generated in particular in the region of the deflection rollers during operation of the conveyor belt system. The wear resistance of the sensor can thus be improved.

[0048] The moving element can preferably have a protrusion for interacting with the sensor. Preferably, the outer edge of the moving element (preferably the protrusion) facing the sensor is configured in the shape of a circular arc segment or at least substantially in the shape of a circular arc segment. This configuration can ensure the detection of the deflection of the moving element or the force applied to the sensor in a relatively simple manner when the moving element rotates.

[0049] Advantageously, the system has a reset element, preferably an elastic element, which is arranged at the support and applies a reset force to the moving element when the moving element moves. The reset element can thus ensure that the moving element returns to its initial position when the moving element moves accordingly. Ultimately, however, the reset element can also be arranged in such a way that the reset force applied by the reset element must first be overcome before the moving element can start to move. This can thus lead to the moving element starting to move and in particular ensure that not any slight changes in the adjustment force acting towards the scraping end are detected, but preferably only a certain minimal change in the scraping section is sensed. Ultimately, a lower limit that must first be overcome can be preset by the reset element.

[0050] In a particularly preferred configuration of the present invention, it is provided that the system has a communication device for transmitting the information acquired by the sensor. The communication device can be arranged to be spaced apart from the support or arranged outside the support. The communication device can also be arranged outside the conveyor belt. Accordingly, the communication device can also be regarded as an external communication device.

[0051] In another embodiment, the communication device can also be cloud-based.

[0052] However, the communication device is preferably a physical device located near the conveyor or near the conveyor belt, which analyzes the information acquired by the sensor in order to monitor the state of the conveyor belt. Finally, the communication device can analyze the information acquired by the sensor and thus monitor the state of the conveyor belt. Preferably, the analysis can be performed so that damage at the conveyor belt can be determined by the communication device. For this purpose, the information acquired by the sensor can also be compared with limit values ​​stored in the communication device.

[0053] Preferably, the communication device is connected to the sensor in a wired manner. In other embodiments, it can also be provided that the measurement signal is simply transmitted from the sensor by a wireless connection.

[0054] Particularly preferably, the system has a measuring device for detecting the speed of the conveyor belt, the running direction of the conveyor belt and / or the position of the conveyor belt. The measuring device can in particular have a measuring wheel. The measuring wheel can be arranged at the conveyor belt, preferably below the conveyor belt. The measuring wheel can make it possible to detect the speed of the conveyor belt, preferably in such a way that the moving conveyor belt also moves or drives the measuring wheel, preferably transmitting a torque to the measuring wheel, wherein the speed of the conveyor belt can in turn be determined via the rotational speed of the measuring wheel.

[0055] Furthermore, the inductive sensors of the measuring device can be arranged at the measuring wheel. These inductive sensors can interact in particular with an indicator device, which can be arranged on the conveyor belt. The indicator device can be, for example, a metal sheet arranged on the conveyor belt. The metal sheet allows the position of the conveyor belt to be determined, for example by combining the position of the indicator device with the speed of the conveyor belt. The running direction of the conveyor belt can in turn be determined by the direction of rotation of the measuring wheel.

[0056] In another preferred embodiment, it is provided that the measuring device is connected to a communication device for transmitting the information acquired by the measuring device. This preferably allows the communication device to be configured such that the information received from the measuring device and the information received from the sensor are or can be combined with each other by the communication device, so that the position of the damage on the conveyor belt can be detected. This detection of the position can be realized, for example, by utilizing the interaction between an inductive sensor and an indicator device. However, in principle, the position can also be determined in other ways.

[0057] The combination of the measurement data of the measuring device and the measurement data of the sensor thus enables the operator of the conveyor belt system to detect damage in particular relatively quickly, so that the conveyor belt damage can be quickly eliminated. This reduces the expenditure for maintaining the conveyor belt system and the effort required for this.

[0058] Preferably, the system has a control device for controlling the conveyor belt system. The communication device can be connected to the control device so that when damage to the conveyor belt is detected, the control device, the conveyor belt and / or the conveyor belt system are shut down by the communication device and / or the scraper section is detached from the conveyor belt. As a result, the operator of the conveyor belt is protected from further damage to the conveyor belt and can intervene relatively quickly to eliminate damage to the conveyor belt. The control device thus increases the safety of the entire conveyor belt system.

[0059] In another preferred configuration of the invention, a manual coupling is arranged on the support shaft and preferably on the adjustment device, with which the rotational position of the support shaft and preferably of the moving element can be manually adjusted and fixed in the set rotational position. In particular, the scraper section can be brought into contact with the conveyor belt or can be separated from the conveyor belt by correspondingly actuating the coupling. The coupling thus allows an outsider to intervene and thus change the position of the scraper section in a simple manner.

[0060] Preferably, the adjustment device has a drive element of an electric drive motor coupled to the support shaft in a torque-transmitting manner, and the electric drive motor is arranged on the support in a fixed position. Preferably, the drive element is connected to the moving element in a rotationally fixed manner. In addition to the coupling, a drive motor can also be provided or used instead of the coupling.

[0061] According to the invention, an adjusting device can also be provided without a drive motor, wherein the preload force acting on the scraper section can then be exerted by the adjusting device.

[0062] The present invention also relates to a method for monitoring the state of a conveyor belt of a conveyor belt device. The method comprises, on the one hand, providing a system according to any of the aforementioned embodiments. In addition, according to the method and the present invention, characteristic parameters of a moving element are obtained. The characteristic parameters of the moving element are obtained in the particularly advantageous manner described above.

[0063] It should therefore be understood that, with regard to the preferred embodiments and advantages of the method according to the invention, reference may be made to the aforementioned advantages and preferred configurations of the system, which also apply in the same manner to the method according to the invention. Finally, in the method according to the invention, the condition of a conveyor belt of a conveyor belt installation is monitored using the system according to the invention. How this monitoring method can be carried out has already been explained in conjunction with the description of the system, so that it will not be repeated again in order to avoid unnecessary repetition.

[0064] In the method according to the invention, the support shaft is preferably moved such that the surface of the scraper section is in contact with the conveyor belt. In particular, the scraper section is in contact with the conveyor belt when the characteristic variable of the moving element is acquired.

[0065] Different measuring methods or measuring principles can be provided for measuring characteristic variables of the moving element, which in turn can in particular allow conclusions to be drawn about possible damage to the conveyor belt. In a first preferred embodiment, the moving element exerts a force on the sensor during its movement, in particular the moving element presses against the sensor or pulls on the sensor. This force or a variable associated with this force can in particular be a characteristic variable to be detected by the sensor.

[0066] In a further preferred embodiment, a force exerted by the moving element on the sensor, a change in position or angular position of the moving element, or an acceleration of the moving element is sensed.

[0067] Alternatively or additionally, the deflection of the moving element can be measured.

[0068] The aforementioned measuring method can in particular realize monitoring of the state of the conveyor belt by acquiring characteristic variables of the moving element.

[0069] In a particularly preferred configuration of the method, it is provided that the communication device analyzes the information acquired by the sensor in order to monitor the state of the conveyor belt. This analysis is carried out in particular so that damage on the conveyor belt can be determined by the communication device. The method according to the invention can thus ensure in particular the detection of damage on the conveyor belt.

[0070] Preferably, it is provided that the measuring device can at least indirectly acquire the speed of the conveyor belt, the running direction of the conveyor belt and / or the position of the conveyor belt. For this reason, the measuring device can utilize a measuring wheel and / or an inductive sensor and an indicating device, as has been explained at the beginning.

[0071] Furthermore, the invention relates to a conveyor belt installation having a conveyor belt and a system according to one of the preceding embodiments.

[0072] It goes without saying that with regard to the conveyor belt device according to the invention, in order to avoid unnecessary elaboration, reference may be made to the description of the method and / or to the implementation, which also applies to the conveyor belt device according to the invention without further specific mention.

[0073] Other features, advantages and possible uses of the invention are obtained from the following description of the embodiments in conjunction with the drawings and the drawings themselves. All described and / or illustrated features constitute the subject matter of the invention either by themselves or in any combination, regardless of their combination in the claims or the reference relationship of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] in:

[0075] Figure 1 shows a schematic perspective view of a conveyor belt device according to the present invention;

[0076] Figure 2 shows a schematic side view of components of another embodiment of a conveyor belt device according to the invention;

[0077] Figure 3 shows a schematic side view of components of another embodiment of a conveyor belt device according to the invention;

[0078] Figure 4 shows a schematic side view of components of another embodiment of a conveyor belt device according to the invention;

[0079] Figure 5 shows a schematic side view of components of another embodiment of a conveyor belt device according to the invention;

[0080] Figure 6 shows a schematic exploded perspective view of components of a system according to the present invention;

[0081] Figure 7 A schematic perspective view of components of another embodiment of the system according to the present invention is shown;

[0082] Figure 8 A schematic perspective view of components of another embodiment of the system according to the present invention is shown;

[0083] Fig. 9 A schematic perspective view of components of another embodiment of the system according to the present invention is shown;

[0084] Fig.10 A schematic diagram showing the interaction of certain components of another embodiment of the system according to the present invention;

[0085] Fig.11 A schematic diagram of the method according to the present invention is shown;

[0086] Fig.12 shows a schematic bottom view of a conveyor belt according to the present invention; and

[0087] Fig.13 A schematic three-dimensional diagram of a measuring device according to the present invention is shown. DETAILED DESCRIPTION

[0088] Figure 1 A drive belt arrangement 3 with a conveyor belt 2 is schematically shown, in which a first embodiment of a system 1 according to the invention for monitoring the state of a conveyor belt 2 is used.

[0089] Figure 1 The schematic diagram shows the front end of the conveyor belt device 3 for conveying material 24 in the conveying direction. The conveyed material 24 can also be called bulk material. The conveyor belt 2 has a conveyor belt section 25 and a return section 23 (lower branch) located below it. The conveyor belt 2 is arranged to rotate continuously in the conveyor belt device 3. The conveyor belt 2 runs around a deflection roller 26 in the transition area from the conveyor belt section 25 to the return section 23.

[0090] A drive (not shown in detail) is connected to the conveyor belt 2 and is provided for driving the conveyor belt 2 .

[0091] Figure 1 In the figure, the conveying material 24 located on the conveyor belt 2 (more specifically, above the conveyor belt section 25 of the conveyor belt) is schematically indicated. For example, bulk materials such as sand, crushed stone, coal, ore, etc. can be transported as the conveying material 24.

[0092] The support shaft 4 of the conveyor belt device 3 and thus of the system 1 can be seen below the conveyor belt 2 and not far from the deflection roller 26. The support shaft 4 can be hexagonal in cross section. Three scraper sections 5 are arranged on or at the support shaft 4 by way of example. The scraper sections 5 can also be arranged on the support shaft 4 in different ways.

[0093] At least one scraper section 5 is arranged on the support shaft 4, more specifically, is connected to the support shaft 4 in a torque-transmitting manner. In particular, the scraper section 5 (the singular form also represents the plural form here) is connected to the support shaft 4 in a form-fitting manner in a torque-transmitting manner. The scraper section 5 can have a scraper end 6 opposite the holding end 22. Figure 1 A so-called first scraper 27 is shown, in which the scraper end 6 of the scraper section 5 bears against the lower run or, in the region of the return section 23 , against the conveyor belt 2 at least substantially below the deflection roller 26 .

[0094] Figure 2 In addition to the first scraper 27 , a so-called second scraper 28 is shown.

[0095] Figure 1 Also shown is a support 8, which is preferably arranged in a fixed position and in which the support shaft 4 is rotatably supported in the illustrated embodiment. The support shaft 4 is rotatably supported on the support 8 via a retaining bearing 9. The rotatable support of the support shaft 4 can be arranged in particular about the longitudinal axis X of the support shaft 4, such as from Figure 1 As schematically observed in .

[0096] The system 1 further comprises a moving element 11. The moving element 11 is arranged on the support 8 and is coupled to the bearing shaft 4 in terms of movement. Figure 1 The movement element 11 of the preferred embodiment shown in FIG. 1 is connected to the support shaft 4 in a rotationally fixed manner.

[0097] Alternatively or additionally, provision can be made for the movement element 11 to be connected to the support shaft 4 in such a way that a load on the support shaft 4 causes a translational movement of the movement element 11 .

[0098] In addition, the system 1 includes a sensor 10, such as Figure 1is schematically shown in Figure 6 as well as Figures 7 to 9 The sensor 10 is used to monitor the status of the conveyor belt 2.

[0099] according to Figure 1 In the preferred embodiments shown in the figure, it is provided that the scraping section 5 (herein referred to in both the singular and plural forms), the supporting shaft 4, the bracket 8 and the moving element 11 interact with each other so that the force acting on the scraping section 5 is transmitted to the moving element 11, wherein the sensor is arranged and configured so that the sensor 10 acquires characteristic parameters of the moving element 11, in particular physical parameters.

[0100] The variables detected by the sensor 10 subsequently make it possible to draw conclusions about the state of the conveyor belt 2 and thus to monitor the state of the conveyor belt.

[0101] For example, the sensor 10 can be configured such that a change in the position of the moving element 11 is detected, which in turn allows conclusions to be drawn about the state of the conveyor belt 2. For example, the belt traction force exerted by the conveyor belt 2 on the scraper section 5 or the scraper end 6 changes. In particular, the belt traction force exerted on the scraper end 6 changes when there is belt damage on the conveyor belt 2.

[0102] Belt damage may cause the scraper section 5 to separate from the conveyor belt 2, which in turn causes the load-bearing shaft 4 to move, and the movement of the load-bearing shaft in turn causes the movement of the moving element 11. Therefore, the position of the moving element 11 or the force applied by the conveyor belt 2 to the scraper section 5 can be inferred through the interaction or coupling between the scraper section 5 and the moving element 11 and by acquiring characteristic parameters of the moving element 11.

[0103] Alternatively or additionally, provision can also be made for the characteristic variable detected by the sensor 10 to allow a conclusion to be drawn about an actuating force to be applied to the conveyor belt 2 for adjusting the scraper section 5 , which actuating force can be applied, for example, by the actuating device 7 .

[0104] exist Figure 1 In the preferred embodiment shown in , it is provided that the system 1 further comprises an adjustment device 7. The support shaft 4 can be moved by means of the adjustment device 7 so that the surface of the scraper section 5, in particular the scraper end 6, can come into contact with the conveyor belt 2, wherein the adjustment device 7 is arranged on a support 10 and is connected to the support shaft 4 in a torque-transmitting manner. The moving element 11 can be coupled to the adjustment device 7 in terms of movement or be part of the adjustment device 7.

[0105] The adjusting device 7 can be driven by a motor. Figure 1 , but this is not required. In this case, Figure 7 and Fig. 9 An embodiment of the adjustment device 7 is shown. Fig. 9 The components of the adjustment device 7 are shown without the drive motor 21. The adjustment can then be carried out, for example, by means of a manual coupling 19, as will be explained in more detail below. The adjustment device 7 can then also be operated in particular manually and include a spring assembly or the like for fixing the scraper section 5.

[0106] exist Figure 6 Schematically, the moving element 11 is shown in an exploded view. The moving element 11 can be configured as a multi-piece or a single piece. Figure 6 In the preferred embodiment shown, a multi-piece configuration of the moving element 11 is provided, wherein the components of the moving element 11 can be connected to each other in a rotationally fixed manner in the installed state, such as Figure 8 As shown schematically. Figure 6 In the embodiment shown in , the movement element 11 is also a component of the adjustment device 7 .

[0107] exist Figure 1 In the preferred embodiment shown in , it is provided that the sensor 10 and the moving element 11 are arranged and configured such that when the moving element 11 moves, the moving element 11 applies a force to the sensor 10 , in particular, the moving element presses against the sensor 10 .

[0108] Preferably, the sensor 10 can be arranged and configured so that the sensor 10 can sense the force applied by the moving element 11 to the sensor 10. The sensing of the force can be performed directly or indirectly. In particular, a parameter associated with the force applied by the moving element 11 to the sensor 10 can also be determined.

[0109] In particular, the sensor is arranged and configured such that it can sense a change in position or angular position of the moving element 11 or an acceleration of the moving element 11. This is provided in an embodiment not shown in detail.

[0110] The sensor 10 can be Figure 1 In the preferred embodiment shown in , the sensor 10 is configured as a strain gauge. In other embodiments, the sensor 10 can also have a strain gauge or be configured as a force sensor, a piezoelectric sensor, a potentiometer, an angle sensor, an acceleration sensor or a magnetic proximity sensor.

[0111] In another embodiment (not shown in greater detail), it is provided that the deflection of the movement element 11 is measurable, in particular when the sensor is configured as an optical sensor or an ultrasonic sensor.

[0112] exist Figure 4In the preferred embodiment shown in FIG. 8 , the sensor 10 is arranged on the support 8 in a fixed position.

[0113] exist Figure 2 As shown in FIG. 1 , two adjustment devices 7 and 7 ′ are finally provided for the first scraper 27 and the second scraper 28. In this case, it should be understood that the description of the adjustment device 7 for the first scraper 27 (eg Figure 1 The same also applies to the adjustment device 7' of the second scraper 28 (schematically shown in FIG. 1 ) without further explanation. Finally, the system 1 can be arranged at the first scraper 27 or at the second scraper 28, and in particular, the system can be configured according to the embodiments described above.

[0114] The system 1 of the second scraper 28 can have a support shaft 4 ′ and at least one scraper element 5 ′ which is arranged on the support shaft 4 ′.

[0115] Depend on Figure 6 As can be seen schematically, according to the preferred embodiment shown, the moving element 11 has a protrusion 12 for interacting with the sensor 10, in particular, Figure 8 This is further shown in FIG. In particular, the outer edge 13 of the moving element 11 or the projection 12 facing the sensor 10 is designed to be at least substantially in the shape of a circular arc segment and / or curved and / or chamfered. This design of the outer edge 13 enables the sensor to detect the movement or force of the moving element 11 in a relatively simple manner, from which the state of the conveyor belt 2 can be inferred. In this way, the projection 12 ensures that it is not necessary for the entire moving element 11 to collide with the sensor 10, but in particular it can be a predetermined area correspondingly configured according to the type of sensor 10 that collides with the sensor.

[0116] Here, the projection 12 can be designed, for example, in such a way that a minimum force or a minimum distance, which is determined based on experiments performed when the invention was completed, must be overcome before the sensor 10 interacts. If this distance or this force is overcome, this is because damage has occurred at the conveyor belt 2. The sensor 10 will then also detect the movement or force of the moving element 11, so that belt damage can be detected in time.

[0117] Not shown in detail is that Figure 1 The preferred system 1 shown in FIG. 1 has a restoring element which is arranged on the support 8 and exerts a restoring force on the moving element 11 when the moving element 11 moves. Therefore, such a restoring element can be realized after the moving element 11 has been deflected, and it is possible to ensure that a recurring belt damage is detected via the moving element 11 and through the interaction of the moving element 11 with the sensor 10.

[0118] exist Figure 1In the preferred embodiment shown in FIG. 1 , a communication device 14 is provided. The communication device 14 is used to transmit information sensed by the sensor 10. In particular, the sensor 10 can be connected to the communication device 14 in a wired manner. The communication device 14 can be arranged outside the bracket 8, such as Figure 1 The communication device 14 may preferably be configured so that it analyzes the information acquired by the sensor 10 to monitor the state of the conveyor belt 2, preferably so that damage on the conveyor belt 2 can be found through the communication device 14.

[0119] In a further embodiment not shown in detail, it can also be provided that the communication device 14 is connected to an external server or an external cloud, in which the measurement data acquired by the sensor 10 can be appropriately analyzed to detect belt damage. The communication device 14 can then have corresponding transmission means for transmission to the server or the cloud, so that preferably wireless transmission can be ensured.

[0120] exist Fig.12 and Fig.13 As shown in , the system 1 may include a measuring device 15 . Fig.13 A measuring wheel is shown, which is a component of the measuring device 15 and can be arranged below the conveyor belt 2 or at a return section or on the underside of the conveyor belt section 25. Ultimately, the measuring device can be provided to detect the speed of the conveyor belt 2, the running direction of the conveyor belt 2 and / or the position of the conveyor belt 2. The measuring wheel can thus be used to determine the above-mentioned variables accordingly by rotating the wheel.

[0121] With regard to the position of the conveyor belt 2, it can also be provided that the measuring device 15 has an indicator device 31 which is arranged on the conveyor belt 2 or on the conveyor belt 24, such as Fig.12 As shown. The indicator device 31 can then interact with the sensor of the measuring device 15 and thus be arranged in a specific section of the conveyor belt. If the speed and the direction of rotation of the conveyor belt 2 are known, their determination can be used to infer which position of the conveyor belt 2 is in contact with the scraper section 5 or in which area the scraper section 5 of the conveyor belt 2 is arranged.

[0122] The measuring device 15 may be configured to have a communication device 14 for transmitting information acquired by the measuring device 15, such as Fig.10As schematically shown. Preferably, the communication device 14 is configured so that: the information received by the measuring device 15 and the information received by the sensor are combined with each other in the communication device 14, so that the position of the damage on the conveyor belt 2 can be detected. This is achieved as follows: the information obtained by the sensor 10 can in turn determine when the damage on the conveyor belt occurs. The information obtained by the measuring device 15 can then determine in which area of ​​the conveyor belt 2 the damage is present. This can be achieved, for example, by measuring the speed of the conveyor belt 2, the running direction of the conveyor belt 2 and the position of the conveyor belt 2.

[0123] In particular, the measuring device 15 can have inductive sensors, which are preferably mounted at a measuring well. These inductive sensors can interact in particular with the indicator means 31 (preferably a metal sheet) and thereby determine the position of the indicator means 31 on the conveyor belt 2.

[0124] exist Fig.10 Schematically shown in FIG. 1 , a control device 16 is provided. The control device 16 may be a component of the system 1. The control device 16 may be configured to control the conveyor belt device 2, wherein the communication device 14 is connected to the control device 16, so that when it is determined that the conveyor belt 2 is damaged (which can be done via the communication device 14), the control device 16 shuts down the conveyor belt 2 and / or the conveyor belt device 3, and / or disengages the scraper section 5 on the conveyor belt 2.

[0125] Furthermore, a manual coupling 19 can be provided, for example Figure 4 In the case of using a manual coupling 19, the rotational position of the support shaft 4 can be adjusted manually and, in particular, according to the preferred embodiment shown, the rotational relative position can be fixed in particular by means of the coupling at the respectively set position. By actuating the coupling 19, the scraper section 5 can be moved in a Figure 4 In the preferred embodiment shown, the device is adjusted onto the conveyor belt 2 and / or detached from the conveyor belt 2 again.

[0126] Coupling 19 Figures 6 to 8 It is also shown in detail.

[0127] Figure 1 Also shown is a drive for the support shaft 4. At least one drive element 20 is provided, which is arranged on the support shaft 4 (more precisely, preferably at one end of the support shaft 4) and is coupled in a torque-transmitting manner to a drive motor 21. Not shown in detail is that a controller can also be provided for the drive motor 21. Typically, such a controller is an electronic controller, in particular an electronic controller with corresponding control software.

[0128] By correspondingly controlling the drive motor 21, the scraper section 5 with its scraper end 6 can be brought to bear against the conveyor belt 2 or detached from the conveyor belt 2, that is, can be removed from the conveyor belt 2. The drive motor 21 can be arranged on the support 8 in a fixed position or in a movable manner. Figure 1 In the embodiment shown in , it is provided that the drive motor 21 is not arranged directly on the support 8, but is displaceable relative to the support 8, but is at least indirectly supported on the support. The drive element of the drive motor 21 is coupled to the drive element 20 in a particularly cooperative manner.

[0129] The drive motor 21 can be of any design and can be, for example, a hydraulic drive motor or a pneumatic drive motor. An electric drive motor 21 is preferred and is preferably a linear electric motor 21 .

[0130] In principle, it is also conceivable to implement the invention without the use of the drive motor 21 , wherein the scraper section 5 is brought to bear against the conveyor belt 2 in another manner, for example manually.

[0131] In the preferred embodiment shown, it is provided that the manual coupling 19 is connected to the support shaft 4 in a rotationally fixed manner and to the drive element 20 in a manually adjustable and fixable manner. When the coupling 19 is used, the rotational relative position of the support shaft 4 and the rotational relative position of the drive element 20 of the drive motor 21 can be manually adjusted relative to each other. In order to achieve a rotationally fixed connection of the manual coupling 19 to the support shaft 4, as shown in FIG. Figure 4 As shown in FIG. 1 , a polygonal recess 30 and a manual coupling 19 are provided, and fixing screws are arranged therein. The fixing screws allow the same manual coupling 19 to be provided to support shafts 4 of different sizes.

[0132] The manually adjustable and fixable connection of the manual coupling 19 and the drive element 20 is located in the upper region slightly above the load-bearing shaft 4. To this end, according to the preferred idea, the coupling 19 and the drive element 20 are connected to each other including a step-adjustable tooth groove positioning mechanism 17 and an infinitely variable fine adjustment mechanism 18. The partially circular tooth arc of the snap-in position 17, above which the stop pin 29 that snaps into the tooth groove positioning mechanism 17 at the corresponding position from above can be seen.

[0133] The stop pin 29 can finally be located in the tooth groove positioning mechanism 17, such as Figure 7 As shown. As a result, the relative position of the manual coupling 19 with respect to the drive element 20 is fixed.

[0134] In the other figures, the locking pin 29 is not visible because it is blocked by the drive element 20 .

[0135] The manual coupling 19 can be actuated by hand according to a preferred idea, i.e., without using a tool to actuate. A traction handle is provided for this purpose, with which the locking pin 29 can be pulled upwards.

[0136] If the locking pin 29 is lifted upwards by means of the pulling handle, it no longer engages with the toothing mechanism 17. The drive element 20 can then be pivoted. If the pull handle is then released again, the locking pin 29 is pressed into the toothing mechanism 17 again according to a preferred embodiment by means of a spring force.

[0137] If the stop pin 29 is already located in the toothed positioning mechanism 17, it is also possible to carry out a fine adjustment 18 with the aid of the adjustment screws located on the left and right, which can achieve a corresponding change. If, for example, the drive element 20 is to be pivoted to the left relative to the support shaft 4, the left screw of the fine adjustment mechanism 18 is tightened and the right screw is loosened. If it is to be pivoted to the right, the operation is reversed.

[0138] exist Fig.11 The method according to the invention is shown in FIG. According to the invention, it is provided that the state of the conveyor belt 2 of the conveyor belt device 3 can be monitored. To this end, according to the invention, it is provided that firstly in step A a system 1 according to one of the above embodiments is provided, as described above with reference to Figures 1 to 10 as well as Figure 12 to Figure 13 The described embodiments.

[0139] In method step B, provision can then be made to detect characteristic variables of the movement element 11 , as has already been discussed above.

[0140] In this case, in a first embodiment, provision can be made that during a movement of the moving element 11, the moving element 11 exerts a force on the sensor 10, in particular presses against the sensor 10 or pulls the sensor 10. This force can be detected by the sensor 10, in particular at least indirectly.

[0141] In a further, in particular alternative, embodiment of method step B, a force exerted by the moving element 11 on the sensor 10 or a change in position or angular position of the moving element 11 or an acceleration of the moving element 11 can be sensed.

[0142] Alternatively or additionally, the deflection of the moving element 11 can be measured.

[0143] In step C, the speed of the conveyor belt 2, the running direction of the conveyor belt 2 or the position of the conveyor belt 2 can also be acquired at least indirectly by the measuring device 15, in particular by means of the indicator device 31 and the measuring wheel. This information can preferably be transmitted to the communication device 14.

[0144] In step D, it is particularly provided that the communication device 14 evaluates the information acquired by the sensor 10 to monitor the state of the conveyor belt 2 , in particular in such a way that damage to the conveyor belt 24 or to the conveyor belt 2 can be determined by the communication device 14 .

[0145] During the evaluation of the measurement data in step D1 , provision can also be made for the communication device 14 to combine the information from the sensor 10 with the transmitted measurement data of the measuring device 15 , so that in particular detected belt damage can be localized on the conveyor belt 2 .

[0146] If necessary, it is then provided in step E that, when belt damage is detected, the scraper section 5 is disconnected from the conveyor belt 2 or the conveyor belt device 3 is shut down. However, the shutdown is only carried out when damage is detected on the conveyor belt 2.

[0147] In method steps A to D or when carrying out the method, provision can be made for the support shaft 4 to be moved so that the surface of the scraper section 5 comes into contact with the conveyor belt 2 .

[0148] As explained above, Figure 1 A detail of a conveyor belt system 3 according to the invention is shown, which has a conveyor belt 2 and a system 1 according to one of the above-described embodiments. The conveyor belt system 3 itself is also a component of the invention.

[0149] Reference numerals list

[0150] 1 System 16 Control Device

[0151] 2 Conveyor belt 17 Tooth fixing mechanism

[0152] 3 Conveyor belt equipment 18 Fine adjustment mechanism

[0153] 4 Load bearing shaft 19 Coupling

[0154] 4' bearing shaft 20 driving element

[0155] 5 Scraping section 21 drive motor

[0156] 5' scraping section 22 holding end

[0157] 6 Scrape off end 23 Return section

[0158] 7 Adjustment device 24 Conveying materials

[0159] 7' Adjustment device 25 conveyor belt section

[0160] 8 bracket 26 steering roller

[0161] 9 retaining bearing for 4 27 first scraper

[0162] 10 Sensor 28 Second scraper

[0163] 11 Moving element 29 Stop pin

[0164] 12 11 protrusion 30 polygonal recess

[0165] 13 11 outer edge 31 indicating device

[0166] 14 communication devices

[0167] 15 Measuring device X 4 longitudinal axis.

Claims

1. A system (1) for monitoring the state of a conveyor belt (2) of a conveyor belt device (3), the system comprising: - a bearing shaft (4, 4'); a scraper section (5, 5') which is arranged on the support shaft (4, 4') and is connected to the support shaft (4, 4') in a torque-transmitting manner; - a fixed support (8) having a retaining bearing (9) in which the support shaft (4, 4') is rotatably supported; - a moving element (11) which is arranged on the support (8) and is kinematically coupled to the bearing shaft (4, 4'); and - a sensor (10) for monitoring the state of the conveyor belt (2), wherein: The scraping section (5, 5'), the bearing shaft (4, 4'), the bracket (8) and the moving element (11) interact with each other so that the force acting on the scraping section (5, 5') is transmitted to the moving element (11), and The sensor (10) is arranged and configured so that the sensor (10) acquires characteristic parameters of the moving element (11), in particular, so that the sensor (10) acquires physical parameters of the moving element (11).

2. The system according to claim 1, wherein: The system comprises an adjustment device (7), by means of which the support shaft (4, 4') can be moved so that the surface of the scraper section (5, 5') comes into contact with the conveyor belt (2), wherein the adjustment device (7) is arranged on the support (8) and is connected to the support shaft (4, 4') in a torque-transmitting manner, and wherein the moving element (11) is coupled to the adjustment device (7) in terms of movement.

3. The system according to claim 1 or 2, wherein: The moving element (11) is connected to the bearing shaft (4, 4') in a rotationally fixed manner.

4. The system according to claim 1 or 2, wherein: The moving element (11) is connected to the bearing shaft (4, 4') so that the load of the bearing shaft (4, 4') causes the translational movement of the moving element (11).

5. A system according to any one of the preceding claims, wherein: The sensor (10) and the moving element (11) are arranged and configured such that: when the moving element (11) moves, the moving element (11) applies a force to the sensor (10), in particular, the moving element (11) presses against the sensor (10) or pulls the sensor (10).

6. A system according to any one of the preceding claims, wherein: The sensor (10) is arranged and configured such that the sensor (10) senses a force applied to the sensor (10) by the moving element (11).

7. A system according to any one of the preceding claims, wherein: The sensor (10) is arranged and configured such that: the sensor (10) senses a position change or an angular position change of the moving element (11) or an acceleration of the moving element (11).

8. A system according to any one of the preceding claims, wherein: The system (10) has a strain gauge or the system (10) is configured as a strain gauge, a force sensor, a piezoelectric sensor, a potentiometer, an angle sensor, an acceleration sensor or a magnetic proximity sensor.

9. The system according to any one of claims 1 to 4, wherein: The sensor (10) is configured such that a deflection of the moving element (11) can be measured, in particular wherein the sensor (10) is designed as an optical sensor (10) or as an ultrasonic sensor.

10. A system according to any one of the preceding claims, wherein: The sensor (10) is arranged on the bracket (8) in a fixed manner, in particular, the sensor is arranged in a fixed manner within a housing of the bracket (8).

11. A system according to any one of the preceding claims, wherein: The moving element (11) has a protrusion (12) for interacting with the sensor (10), in particular, an outer edge (13) of the moving element (11) facing the sensor (10) is designed in the shape of a circular arc segment.

12. A system according to any one of the preceding claims, wherein: The system (10) has a restoring element which is arranged on the support (8) and applies a restoring force to the moving element (11) when the moving element (11) moves.

13. A system according to any one of the preceding claims, wherein: The system (10) has a communication device (14), which is used to transmit the information obtained by the sensor (10) and is arranged to be separated from the support (8), in particular, wherein the communication device (14) analyzes the information obtained by the sensor (10) to monitor the state of the conveyor belt (2), preferably, the communication device analyzes the information obtained by the sensor to monitor the state of the conveyor belt, so that damage to the conveyor belt (2) can be determined via the communication device (14).

14. A system according to any one of the preceding claims, wherein: The system (10) has a measuring device (15) for detecting the speed of the conveyor belt (2), the running direction of the conveyor belt (2) and / or the position of the conveyor belt (2), in particular, wherein the measuring device (15) has a measuring wheel arranged on the conveyor belt (2).

15. The system according to claim 13 and claim 14, wherein: The measuring device (15) is connected to a communication device (14) for transmitting information acquired by the measuring device (15), preferably wherein: The communication device (14) is configured so that the information received from the measuring device (15) and the information received from the sensor (10) are combined with each other by the communication device (14), so that the damaged position on the conveyor belt (2) can be detected.

16. The system according to claim 14 or 15, wherein: The measuring device (15) has a measuring wheel, in particular wherein the inductive sensor (10) of the measuring device (15) is arranged on the measuring wheel.

17. A system according to any one of the preceding claims, wherein: The system (1) comprises a control device (16) for controlling the conveyor belt device (3), and the communication device (14) is connected to the control device (16) so that when the communication device (14) detects damage on the conveyor belt (2), the control device (16) shuts down the conveyor belt (2) and / or the conveyor belt device (3) and / or separates the scraping section (5, 5') from the conveyor belt (2).

18. A system according to any one of the preceding claims, wherein: A manual coupling (19) is arranged on the bearing shaft (4, 4'), preferably, the manual coupling (19) is located at the adjustment device (7), when the manual coupling is used, the rotational position of the bearing shaft (4, 4') can be manually adjusted and fixed at the set rotational position, and preferably, the rotational position of the moving element (11) can be manually adjusted and fixed at the set rotational position, in particular, By correspondingly actuating the coupling (19), the scraper section (5, 5') can come into contact with the conveyor belt (2) or be disengaged from the conveyor belt (2).

19. A system according to any one of the preceding claims, wherein: The adjusting device (7) has a drive element (20) of an electric drive motor (21), which is arranged on the bracket (8) in a fixed manner, and the drive element is coupled to the support shaft (4, 4') in a torque-transmitting manner, preferably, wherein the drive element (20) is connected to the moving element (11) in a rotationally fixed manner.

20. A method for monitoring the state of a conveyor belt (2) of a conveyor belt device (3), the method comprising: - providing a system (10) according to any one of claims 1 to 19, and - Obtaining characteristic parameters of the moving element (11).

21. The method according to claim 20, wherein: The bearing shaft (4, 4') is moved so that the surface of the scraper section (5, 5') comes into contact with the conveyor belt (2).

22. The method according to claim 20 or 21, wherein: When the moving element (11) moves, the moving element (11) applies a force to the sensor (10), in particular, the moving element presses against the sensor (10) or pulls the sensor (10).

23. The method according to any one of claims 20 to 22, wherein: A force applied by the moving element (11) to the sensor (10), a position change or an angular position change of the moving element (11), or an acceleration of the moving element (11) is sensed.

24. The method according to any one of claims 20 to 22, wherein: The deflection of the moving element (11) is measured.

25. The method according to any one of claims 20 to 24, wherein: The communication device (14) analyses the information sensed by the sensor (10) to monitor the state of the conveyor belt (2), in particular enabling damage on the conveyor belt (2) to be determined by the communication device (14).

26. The method according to any one of claims 20 to 25, wherein: The measuring device (15) at least indirectly detects the speed of the conveyor belt (2), the running direction of the conveyor belt (2) and / or the position of the conveyor belt (2).

27. Conveyor belt installation (3) having a conveyor belt (2) and a system (10) according to any one of claims 1 to 19.

Images