COMPONENT FOR A MOBILE WORK MACHINE WITH A CONVEYOR DEVICE

Description

[0001] The present invention relates to a component for a mobile working machine according to the preamble of claim 1, a transport vehicle according to the preamble of claim 10 and a mobile working machine according to the preamble of claims 13 and 14.

[0002] In mobile machinery, conveying systems are used to transport materials. During conveying, the components of these systems are subjected to stress by the material being transported, resulting in wear on the surfaces of the components in contact with the material. Such heavily stressed areas include, for example, the floor of a transport vehicle's cargo area, the channel wall of a discharge chute, or the housing wall of a conveyor drum in a self-propelled harvester such as a forage harvester. To prevent machine failure, these components should be regularly inspected for signs of wear. However, this is complicated by the fact that the stressed surfaces of the components are often inaccessible and / or removal for inspection is too costly.To prevent machine breakdowns, these components are therefore replaced in practice at regular intervals or after a specified number of operating hours. However, it would be more economical to replace a stressed component only when it has become unusable due to wear and tear and has thus reached its maximum service life.

[0003] Documents KR 101832899 B1, EP 3 009 834 A1 and CN 212424507 U each disclose a system for detecting the wear condition of a wall of a pipe or a conveying shaft.

[0004] Publication KR 101832899 B1 further discloses the features of the preamble of claim 1.

[0005] The object of the invention is therefore to create a component for a mobile working machine with which the condition of a component stressed by conveyed transported goods can be determined, so that a replacement and / or maintenance of the component can be planned at an economically optimal time and downtime of such a mobile working machine can be avoided.

[0006] The problem is solved with a component for a mobile working machine with the features of claim 1, with a transport vehicle according to the features of claim 10 and with a mobile working machine according to the features of claims 13 and 14. Advantageous embodiments can be found in the dependent claims.

[0007] This involves creating a component for a mobile work machine. The component can be used in a transport vehicle or in a mobile work machine.

[0008] The component comprises a conveying device with a conveying element for guiding and / or conveying goods in at least one conveying direction and with a conveying space within which the goods can be moved in at least one of the conveying directions. The conveying space can be the cargo space of a transport container, in which the conveying device is provided for conveying the goods into or out of the cargo space.

[0009] When used in a mobile machine, the conveying space can also be a space enclosed by a shaft, channel, or pipe. In this configuration, the material being transported can be conveyed through the conveying space, for example, from a processing unit to a transport vehicle.

[0010] The component also features a surface element that at least partially defines the conveying area and has a first surface facing the conveying area and a second surface facing away from it. As a result, the surface element is only exposed to the conveyed material on its first surface, causing wear on this surface. The second surface, however, remains free from wear, at least with respect to exposure to the conveyed material.

[0011] Such signs of wear that appear on the first surface can include, for example, material removal, grooves, scratches, holes, cracks, deformations or similar types of wear.

[0012] Since the surface element defines the conveying space, its condition is also significant for the operation of the conveying device. Excessive wear of the surface element impairs the functionality of the conveying device, consequently jeopardizing the operation of the machine or even, at least in the long term, potentially leading to its failure. The concept of the invention is not limited to a specific design or type of machine. For example, the surface element can be partially or completely integrated into the cargo space of a transport vehicle. Similarly, the surface element can be integrated into the housing of a conveyor drum, a conveying channel, and / or the discharge chute of a harvesting machine.

[0013] Furthermore, the second surface is arranged at a distance from the first surface. The distance between the first and second surfaces thus corresponds to a length or thickness measurement between them. Preferably, the first and second surfaces are configured as opposing, particularly planar, surfaces. For example, the first surface can be the upper surface of a cargo space floor that supports the transported goods, while the second surface can be the underside of the floor. In an equally preferred embodiment, the first and second surfaces can also be configured as opposing surfaces with concurrent curves and / or concurrent bends. For instance, the first surface can be the inner side of a curved discharge chute of a harvesting machine, while the second surface can be the outer side of the discharge chute.

[0014] To determine the condition of the component stressed by conveyed goods, the component includes a measuring device assigned to the second surface. This device is designed to detect the spatial relationship between the first and second surfaces. By detecting this spatial relationship, the distance between the first and second surfaces can be determined. This determined distance corresponds to the material thickness of the surface element. Therefore, the terms distance, material thickness, and material strength are used synonymously. The reduction of this distance in a worn state of the surface element compared to a wear-free state is a measure of wear, particularly of material loss on the first surface of the surface element.Consequently, it is possible to determine the condition of the surface element by identifying the spatial relationship between the first and second surfaces. This makes it possible to predict when the surface element needs to be replaced and to carry out the replacement at an economically advantageous time.

[0015] According to the invention, the measuring device includes a sensor that has a defined sensor distance from the second surface. This sensor distance can be defined, for example, by calibration and / or by a design feature, such as a mechanical fastening. The sensor distance preferably corresponds to an air gap of less than 1 mm.

[0016] The sensor spacing allows for contactless and / or non-destructive detection of the spatial relationship between the first and second surfaces. Non-destructive testing of the surface element for wear is performed by determining the distance between the surfaces. The sensor thus causes no wear on the surface element. For this purpose, the sensor is preferably designed as an EMAT sensor (electromagnetic acoustic transducer).

[0017] In a preferred embodiment, the sensor can be fixedly arranged on the second surface. In a particularly advantageous embodiment, where an area of ​​the surface element with the greatest expected wear is known, the sensor can be arranged in this area. This allows the measuring device to be constructed with few components in a simple and cost-effective manner.

[0018] According to a further preferred embodiment, the sensor is guided in a positionally variable manner along the second surface. The surface element can be mounted in a positionally variable manner relative to the sensor and / or the sensor relative to the surface element. The measuring device is thus able to inspect a larger area for wear.

[0019] Preferably, the sensor of the measuring device is designed to be pressed against the second surface. For this purpose, the sensor can be pressed against the second surface against the restoring force of a spring and / or with the aid of the restoring force of a spring. This ensures that the defined sensor distance remains the same or nearly the same even if the position of the sensor relative to the surface element changes and / or the position of the surface element relative to the sensor changes.

[0020] Preferably, the sensor is configured to detect a quantity of material in a direction of material expansion of the surface element. This direction of material expansion preferably extends from the second surface towards the first surface and thus away from the sensor. By detecting the quantity of material, it is possible to determine the material thickness of the surface element at the local test point. It is particularly preferred that the sensor detects the quantity of material at a local test point, i.e., specifically at a single point. This allows the spatial relationship between the first and second surfaces, especially at the local test point, to be determined. Furthermore, by comparing the detected quantity and / or thickness of material with the quantity and / or thickness of material of the surface element in an unworn state, it is possible to determine the wear of the surface element locally.The data is preferably collected from a local test point on the second surface opposite the sensor.

[0021] Preferably, the sensor generates a magnetic field and at least one alternating electric field. The magnetic field is preferably generated by a permanent magnet. To generate the alternating electric field, the sensor preferably includes an electrical conductor, such as a wire. The alternating electric field interacts with the magnetic field according to the principle of electromagnetic-acoustic conversion, so that when a metallic and / or ferromagnetic object is penetrated by the alternating magnetic and electric fields, a Lorentz force occurs in the penetrated object, generating waveforms within it.

[0022] Thus, the surface element on the second surface can be stimulated with sound waves by the sensor, enabling the detection of the distance between the first and second surfaces. For this purpose, the sensor is preferably arranged on the second surface such that the magnetic field and the alternating electric field generated by the sensor penetrate the surface element on the second surface. The surface element is preferably made of metal and / or ferromagnetic material. During the sensor's measurement operation, this generates sound waves, particularly high-frequency ones, near the surface of the surface element, which propagate essentially from the second surface towards the first surface in the direction of material expansion.

[0023] By design, the waveforms propagating within the surface element generate eddy currents that can be detected by the sensor. These eddy currents induce an alternating voltage in the sensor. The voltage value of this alternating voltage then serves as a measure of the amount of material between the first and second surfaces, thus enabling the detection of the distance between them. Alternatively, the current intensity of the eddy currents can also be measured to represent the amount of material. A key advantage of the sensor is its ability to perform measurements even on rough, uneven, dirty, oxidized, and / or painted surfaces. This allows the sensor to be used in the operation of machine components in environments prone to high levels of contamination.Another advantage arises from the fact that the measurement can be carried out without attacking, damaging and / or destroying the surface element.

[0024] To detect the alternating voltage, the sensor preferably includes an electrical conductor. Particularly preferably, the voltage value of the induced alternating voltage and / or the current of the induced alternating current is detected by the electrical conductor, which also generates the alternating electric field. This allows the sensor to be implemented with only a few components, making it cost-effective to manufacture.

[0025] The component preferably includes a control unit for receiving and / or processing a measurement signal from the measuring device. It is preferred that the measurement signal includes at least measurement data about the condition, in particular the distance between the first and second surfaces and / or the material thickness of the surface element. Furthermore, it is preferred that the control unit time-codes and stores the measurement data of the signal. The measurement data is provided to be readable and / or retrievable via a user interface of the control unit. This enables reliable monitoring of the condition of the surface element based on the distance between the first and second surfaces.

[0026] In a preferred embodiment, the control device is also provided for sending a control signal and / or a display signal. The control signal is intended to control and / or regulate at least one actuator, which is, for example, assigned to the conveying device.

[0027] It is also preferred that a display unit is provided to receive the display signal and / or to reproduce the display data of the signal to a machine operator of the machine. For the operator's information, the display data of the signal includes at least the measurement data from the measuring device. Equally preferred, the display data can alternatively or additionally include further data from the machine, such as conveying operating data from the conveying system. In this way, the operator can be shown, in addition to the status of the surface element, for example, the conveying speed of the material being transported, the drive speed of a conveying drive of the conveying system, and / or the flow rate of the material being transported. This allows the operator to optimally assess the conveying operation of the conveying system and / or adjust it to the status of the surface element, thus preventing overloading of the surface element.This allows the operator of the mobile machine to see the condition of the surface element on the display unit, so that replacement and / or maintenance of the surface element can be planned in case of insufficient material thickness.

[0028] Furthermore, it is preferred that the control device is configured to issue a warning signal when a critical distance between the first and second surfaces is breached. This critical distance can preferably be defined such that a defect in the component is to be expected if it is breached. The warning signal then allows the operator to stop the operation of the machine and / or the conveying system, thus reliably preventing machine failure. Alternatively or additionally, the control device can be configured to automatically stop the machine when the critical distance is breached. Upon receiving the warning, the operator can then plan and initiate the replacement and / or maintenance of the surface element in such a way as to prevent downtime.

[0029] The task is also accomplished using a transport vehicle equipped with such a component. The transport vehicle can be a loading wagon, a semi-trailer, a tipper trailer, or similar. The towing vehicle, meanwhile, can be a tractor, truck, or similar.

[0030] In this application of the invention, the conveying space is designed as a transport container. Furthermore, the surface element is preferably designed as a bottom wall, which is configured for loading or unloading the transport container.

[0031] Preferably, the conveying device comprises sliding floor profiles that are mounted on the bottom wall and are movably driven in the conveying direction. The sliding floor profiles allow the conveyed goods to be moved out of, into, and / or within the transport container in at least one conveying direction. For this purpose, the sliding floor profiles are arranged in a row transverse to the conveying direction, thus forming a sliding floor that substantially covers the bottom wall.

[0032] Furthermore, the sliding floor profiles are preferably movable relative to each other. For conveying, all sliding floor profiles are preferably moved simultaneously in the conveying direction and then individually and sequentially moved back in the opposite direction. During this movement, the sliding floor profiles move and / or convey the material in the conveying direction in a common forward movement, while in a sequential return movement of each individual sliding floor profile, the material is either not moved or only minimally moved compared to the forward movement. The material is thus conveyed in the conveying direction.

[0033] During conveying, wear and tear occurs on the profiles due to the displacement of the transported goods and / or the sliding of the profiles under the transported goods. The measuring device is therefore preferably designed to record the condition of the sliding floor profiles. For this purpose, it is particularly preferred that one of the sliding floor profiles at least partially forms the surface element.

[0034] The sensor of the measuring device is preferably arranged on a frame of the machine below the transport container. It also preferably has at least one roller designed to roll along the sliding floor profile of the sliding floor. This allows the sliding floor profile to slide along the roller of the measuring device without interfering with the conveying operation. Furthermore, the roller defines the gap between the sensor and the second surface on the floor wall.

[0035] The task is also accomplished with a work machine designed as a combination of a towing vehicle and a transport vehicle. The towing vehicle has a drive system for powering ground-penetrating devices, such as wheels, tracks, or the like.

[0036] Furthermore, the task is solved with a machine designed as a harvester, equipped with such a component. The machine is preferably a self-propelled harvester of the type of forage harvester. It preferably has a drive system for powering ground-penetrating devices, such as wheels, tracks, or the like.

[0037] The harvesting machine can also be designed in the manner of a harvesting machine pulled by a towing vehicle, such as a forage wagon or a baler.

[0038] In this application of the invention, the conveying device of the working machine is arranged downstream of a processing unit for crushing and / or conveying harvested material in the conveying direction and includes a discharge arc for transferring the transported material onto a transport vehicle.

[0039] The discharge chute includes the surface element through which the conveyed material is transported. According to an equally preferred embodiment, the surface element alternatively or additionally forms at least part of a housing wall of the processing unit and / or a channel wall of a conveying channel of the machine.

[0040] During the conveying of the harvested crop, wear and tear occurs as the crop slides along the surface element. In particular, wear from the harvested crop can be observed at the curved sections of the discharge chute and / or at the points on the housing wall and / or channel wall.

[0041] Preferably, the measuring device is designed to be movable along the ejection chute. For this purpose, the machine preferably has an actuator that adjusts the measuring device, in particular by moving and / or pivoting it. A guide means for guiding the measuring device is arranged on one outer side of the ejection chute. This allows the measuring device to be moved along the ejection chute, guided by the actuator, so that a larger area of ​​the ejection chute can be detected by the measuring device. The guide means defines the gap between the sensor and the second surface of the area element on the ejection chute.

[0042] Preferably, the measurement signal is sent to a display unit located in the operator's cab of the machine. However, the display unit can also be a mobile device, allowing the operator to carry it with them at all times. The measurement signal, control signal, and / or display signal are preferably transmitted via a data bus and / or a wireless connection. This enables continuous and / or location-independent monitoring.

[0043] The invention will be described below with reference to figures.

[0044] It shows Fig. 1 schematically shows a mobile working machine designed as a combination of a transport vehicle and a towing vehicle; Fig. 2 schematically shows a conveying area of ​​the mobile working machine. Fig. 1 in a perspective view; Fig. 3 schematically shows the measuring device in a sectional view below a sliding floor profile of the mobile work machine. Fig. 2 ; and Fig. 4 each in (a) and in (c) schematically an embodiment of a mobile working machine designed as a harvesting machine, and in (b) the measuring device on a discharge arc of the working machine.

[0045] Fig. 1 Figure 1 schematically shows a mobile work machine 2, which is designed here as a combination of a transport vehicle 21 and a towing vehicle 26. The work machine 2 includes a component according to the invention. For locomotion, it has ground-penetrating means 4, which can be driven by a drive system (not shown). The work machine 2 also includes a transport container 22, which is intended for transporting goods 9 and is supported by a vehicle frame 8 of the work machine 2. For this purpose, a loading space 24 of the transport container 22 can be loaded and unloaded with goods 9.

[0046] Furthermore, the machine 2 has a measuring device 5 which is arranged on a bottom wall 23 of the transport container 22. It is designed to detect the condition of a surface element 33 which at least partially forms the transport container 22 and consequently partially delimits the loading space 24.

[0047] The measuring device 5 sends a measurement signal with measurement data to a control unit 6 of the machine 2. The control unit 6 is configured to process information about the state of the surface element 33 from the measurement signal and, depending on this, send a display signal with display data to a display unit 7. The display unit 7 can then present the information contained in the display data to an operator of the machine 2. This information includes the state of the surface element 33. Furthermore, it can additionally or alternatively also display data from other components. Fig. 1 The information may be displayed on the units, actuators and / or sensors of the working machine 2, which are not shown. For example, the information may be the travel speed of the working machine 2, the drive speed of the drive and / or a unit, the fill level of the transport container 22, and / or the load weight of the transport container 22.

[0048] Furthermore, the control unit 6 can be configured to send additional signals. One of these signals can be, for example, a warning signal that is issued when a critical condition of the surface element 33 is detected. Another signal can also be a control signal that controls and / or regulates the operation of a unit and / or an actuator depending on the measurement signal.

[0049] For signal transmission, the measuring device 5, the control unit 6, the display unit 7, and / or the other components, actuators, and / or sensors are interconnected via a wireless connection and / or a data bus. In contrast to the illustrated embodiment, the display unit 7 can also be directly connected to the measuring device 5. The display unit 7 is then configured to display the data depending on the measurement signal and / or the warning signal.

[0050] Fig 2 Figure 2 schematically shows the cargo space 24 of the mobile work machine 2. Fig. 1 In the illustrated embodiment, the loading space 24 of the working machine 2 is a conveying space 31 of a component according to the invention. It is also bounded by a horizontally oriented bottom wall 23 and vertically oriented container walls 221, 222, 223, 224 of the transport container 22.

[0051] An optional ceiling wall 225 of the transport container 22 additionally encloses the conveying space 31 from above. The ceiling wall 225 can be designed to open and close, so that the transport container 22 can be loaded and unloaded from above by another machine (not shown), such as a harvester or a crane.

[0052] For the sake of clarity, it is not shown in detail here that the container wall 224 arranged on a rear side 25 of the working machine 2 is designed to be both closing and opening, so that the transport container 22 can be closed or open at the rear side 25. Thus, the transport container 22 can be moved into the closed position for road transport of the transported goods 9 and into the open position for loading and / or unloading, in which the transported goods 9 can be received and removed through the opening at the rear side 25.

[0053] For loading and unloading the transport container 22, the work machine 2 also has a conveying device 3, through which the transported goods 9 can be conveyed in and / or against a conveying direction F2. The material in the Fig. 2 Simplified representations of transport goods 9 include, for example, stackable goods, pallets, bulk goods and / or harvested crops.

[0054] To convey the transported goods 9, the conveying device 3 comprises a plurality of moving floor profiles 231, 232, 233, each of which is actuated by a push actuator 234, 235, 236. The push actuators 234, 235, 236 allow the moving floor profiles 231, 232, 233 to be moved both in and against the conveying direction F2. They are designed to be movable relative to the floor wall 23 and to each other, so that they can slide over the floor wall 23 and past each other.

[0055] To convey the transported goods 9 in the conveying direction F2, i.e., out of the transport container 22, in a first step all push actuators 234, 235, 236 are actuated simultaneously, so that all push floor profiles 231, 232, 233 move at the same time in the conveying direction F2. As the push floor profiles 231, 232, 233 move, the transported goods 9 resting on them are carried along and consequently conveyed in the conveying direction F2. Subsequently, in a second step, the push actuators 234, 235, 236 are each actuated individually in succession, so that the push floor profiles 231, 232, 233 are moved back individually and sequentially in the opposite direction to F2. During the return movement, the push floor profiles 231, 232, 233 slide individually under the transported goods 9 without taking them along, or the individual push floor profiles 231, 232, 233 take the transported goods 9 along only minimally.Since the transport of the goods 9 against the conveying direction F2 after the individual return movement of all moving floor profiles 231, 232, 233 is less than the transport of the goods 9 during the simultaneous forward movement of all moving floor profiles 231, 232, 233, the goods 9 are thus conveyed in the conveying direction F2.

[0056] To convey the transported goods 9 against the conveying direction F2, i.e. into the transport container 22, the steps for actuating the push actuators 234, 235, 236 are carried out in the opposite direction, so that the profiles 231, 232, 233 are first moved individually and one after the other in the conveying direction F2 and subsequently moved back simultaneously and together against the conveying direction F2.

[0057] In contrast to the one in Fig. 2 In a simplified representation, it is advantageous that the conveyor 3 has any number of moving floor profiles 231, 232, 233 and / or moving actuators 234, 235, 236 instead of three moving floor profiles 231, 232, 233 and three moving actuators 234, 235, 236. Furthermore, the moving floor profiles 231, 232, 233 are arranged in a row and completely cover the width of the floor wall 23. It is also possible that the moving floor profiles 231, 232, 233 are divided into groups, and each group is assigned to a moving actuator 234, 235, 236.

[0058] The thrust actuators 234, 235, 236 are in the Fig.2 The figures are shown as simplified pneumatic or hydraulic cylinders. In an advantageous embodiment, however, the thrust actuators 234, 235, 236 can also be designed as electric actuators.

[0059] During the conveying of the transported goods 9 through the profiles 231, 232, 233, wear occurs on these profiles due to the sliding movements of the profiles 231, 232, 233 against each other, against the bottom wall 23 and / or on the transported goods 9. The measuring device 5 is provided to detect the condition of the profiles 231, 232, 233 and / or the bottom wall 23. For this purpose, it is arranged on a side of the transport container 22 facing away from the conveying chamber 31, below a moving floor profile 232, so that it is able to detect a surface element 33 of the profile 232.

[0060] In the Fig. 2 In the illustrated embodiment, the measuring device 5 is assigned to the central sliding floor profile 232, since the highest load is to be expected in the center of the conveying chamber 31. However, it is also possible to arrange the measuring device 5 on another profile 231, 233 and / or on the floor wall 23. Furthermore, it is also possible for one or more measuring devices 5 to be assigned to the profiles 231, 232, 233 and / or the floor wall 23.

[0061] Furthermore, the measuring device 5 is connected to the control unit 6 via a wireless and / or wired data connection. It transmits the measurement signal to the control unit 6, which includes measurement data about the state of the surface element 33. The control unit 6 is also capable of actuating the push actuators 234, 235, 236 by means of a control signal. In doing so, the control unit 6 can control the travel speed of the push floor profiles 231, 232, 233, and thus also the conveying speed of the conveyed material 9. Consequently, the control unit 6 can also adjust the conveying operation of the conveying device 3. Therefore, the conveying operation can also be adjusted by the control unit 6 depending on the measurement signal.

[0062] Fig 3 schematically shows the measuring device 5 from Fig. 2 In the illustrated embodiment, this is a surface element 33 of one of the shear floor profiles 231, 232, 233 made of Fig. 2 assigned. The surface element 33 has a first surface 331 facing the transported goods 9 and a second surface 332 facing away from the transported goods 9.

[0063] The measuring device 5 is designed to determine the condition of the surface element 33 using non-destructive measurement. For this purpose, it is arranged on the second surface 332. It also includes a sensor 51, which is positioned at a defined sensor distance 52 from the second surface 332.

[0064] The sensor 51, shown here in simplified form, is designed as an electromagnetic-acoustic transducer. It generates a magnetic field via a permanent magnet (not shown) that penetrates the metallic and / or ferromagnetic material of the surface element 33. Simultaneously, it generates an alternating electric field in the surface element 33 via an electrical conductor (not shown), which, in interaction with the magnetic field, produces sound waves in the surface element 33. The sound waves cause changes in the alternating electric field, thereby inducing an alternating voltage in the electrical conductor. The induced alternating voltage is a measure of the amount of material in the surface element 33 in a material expansion direction 53. This direction extends from the second surface 332 away from the sensor 51 towards the first surface 331.

[0065] Thus, by measuring the amount of material in surface element 33, wear and / or weak points in it can be identified, such as cracks, holes, and / or rust. Furthermore, by measuring the amount of material, the distance between the second surface 332 and the first surface 331 can be determined. This also means that the material thickness of surface element 33 can be determined. The determined material thickness can then be compared with the material thickness of an unused surface element 33, allowing material loss on the first surface 331 to be determined. Consequently, in addition to or as an alternative to identifying weak points, the wear condition of surface element 33 can be determined.

[0066] The measuring device 5 also has guide rollers 54 on which the profile 231, 232, 233 is guided during a feed or retraction movement. The mounting of the guide rollers 54 on the measuring device 5 also defines the sensor distance 52 between sensor 51 and the second surface 332.

[0067] In contrast to the embodiment shown, it is also possible that the measuring device 5 has a sliding element and / or a ball roller instead of rollers 54, over which the sensor distance 52 is defined and / or on which the profile 231, 232, 233 slides and / or is guided.

[0068] Furthermore, the measuring device 5 can be pressed against the surface element 33. A spring 55, attached to a frame 8 of the mobile machine 2, is shown here for this purpose. The spring 55 exerts a compressive force on the measuring device 5, ensuring that the rollers 54 are pressed against the surface element 33 and that continuous contact exists between the rollers 54 and the surface element 33. This ensures that the sensor distance 52 remains constant during the rolling motion of the surface element 33.

[0069] Instead of a spring 55, an elastic element made of plastic and / or metal can also be used. Alternatively, a control system comprising a controllable actuator and a distance sensor can be used, which regulates or controls the sensor distance 52 of the sensor 51 to the surface element 33.

[0070] Fig. 4 Figure (a) shows a mobile working machine 1 designed as a harvesting machine 1. This machine has an inlet 11 for drawing in and feeding crop material to a conveying device 3, which is designed to guide and / or convey the crop material 9 in a conveying direction F1. An attachment 18, such as a corn header or a pick-up, is provided on the working machine 1 for harvesting and / or picking up the crop material 9. The crop material 9 is to be understood as the transported material 9 within the meaning of the invention. Furthermore, the conveying device 3 of this embodiment has a conveying channel 15, which is a conveying chamber 31 of a component within the meaning of the invention.

[0071] The conveying channel 15 is downstream of a processing unit 12 for shredding and / or conveying harvested material 9 in the conveying direction F1. The following is located in the Fig. 4 The processing unit 12 shown is designed as a chopping drum. However, a conveying drum and / or a conditioner could equally well be provided. Further along the conveying direction F1, an acceleration unit 14, which is provided for accelerating the harvested material 9, and a discharge chute 13 are arranged downstream of the processing unit 12. The discharge chute 13 is for ejecting and transferring the harvested material 9 onto a [missing information - likely a specific surface or component]. Figur 4 Transport vehicle not shown.

[0072] In the Fig. 4 In the illustrated embodiment, the acceleration unit 14 is designed as a projectile accelerator. Alternatively, the acceleration unit 14 can also be designed as a conveyor drum or a blower.

[0073] The processing unit 12 and / or the acceleration unit 14 can be driven to accelerate the harvested material 9 and convey it through the conveying channel 15. The harvested material 9 causes wear on the inner walls of the conveying channel 15. In particular, the wear in the discharge chute 13 is high due to its curvature. In the example shown, the measuring device 5 is therefore assigned to a surface element 32 that at least partially forms the discharge chute 13. For this purpose, the measuring device 5 is attached to a side of the discharge chute 13 facing away from the harvested material 9. The measuring device 5 detects the wear and / or the condition of the surface element 32 of the discharge chute 13. Furthermore, an actuator 56 acts on the measuring device 5, allowing it to be moved along the discharge chute 13.

[0074] The working machine 1 also features, analogous to the working machine from the Fig. 1 a control unit 6 and / or a display unit 7. In addition to information about the status of the surface element 32, the display unit 7 can also provide its operator with information about the operation of the working machine 1. This additional information includes, for example, the travel speed of the working machine 1, the drive speed of the units 12, 14, and / or the flow rate of the harvested crop 9 through the conveying channel 15.

[0075] Furthermore, the control unit 6 is configured to actuate the actuator 56, allowing the position of the measuring device 5 on the discharge arch 13 to be adjusted by the control unit 6. Additionally, the operator can trigger a user signal to the control unit 6 via a user interface of the display unit 7, which then initiates the movement of the measuring device 5. Moreover, the control unit 6 is designed to control the operation of the units 12, 14, as well as the feeder 11 and / or the attachment 18, so that the conveying operation of the conveying device 3 can be adjusted by the control unit 6 either dependently or independently of the measuring signal from the measuring device 5.

[0076] Contrary to the one in the Fig. 4 In the embodiment shown, a fixed arrangement of the measuring device 5 on the discharge chute 13 is also possible as a cost-effective alternative. The position-changing arrangement of the measuring device 5, in turn, has the advantage that the surface element 32 detectable by the measuring device 5 forms a larger part of the discharge chute 13 than with the fixed arrangement of the measuring device 5 on the discharge chute 13.

[0077] Fig. 4 (b) schematically shows the position-changing arrangement of the measuring device 5, which is analogous to the measuring device 5 from Fig. 3 is assigned to a surface element 32, which here forms the ejection arc 13 from Fig. 4 (a) at least partially forms, and is intended for recording the state of surface element 32. It can be seen that surface element 32 of the ejection arc 13 is analogous to surface element 32 made of Fig. 3 The system has a first surface 321 and a second surface 322. The state of the surface element 32 is detected by the measuring device 5 analogously to the measuring device 5 from [previous context]. Fig. 3 , that is, the sensor 51 of the measuring device 5 detects a quantity of material of the surface element 32 in a material expansion direction 53, which extends from the second surface 322 in the direction away from the sensor 51 towards the first surface 321.

[0078] The figure also shows that a guide element 57 is provided for guiding the measuring device 5 on the ejection arch 13. The guide element 57 defines the sensor distance 52 between the sensor 51 of the measuring device 5 and the second surface 322. Furthermore, the guide element 57 ensures that the sensor distance 52 remains essentially constant even when the measuring device 5 is displaced on the ejection arch.

[0079] In contrast to the one in the Fig. 4 (b) In the illustrated embodiment, a guide rail can also be used instead of a sliding guide, in which rollers or wheels attached to the measuring device 5 are guided. Alternatively, instead of an actuator 56 for moving the measuring device 5, a carriage can also be provided which engages with the guide means 57.

[0080] Fig. 4 (c) shows analogous to Fig. 4 (a) A mobile working machine 1 designed as a harvesting machine 1, in which two further applications of the inventive concept are realized by alternative or additional arrangements of the measuring device 5 on the working machine 1. The working machine 1 shown here features, analogous to the working machine 1, Fig 4 (a), a conveying device 3 with a conveying chamber 31 designed as a conveying channel 15, several soil intervention devices 4, at least one measuring device 5 with one actuator 56 each, a control device 6, a display unit 7, one or more aggregates 12, 14, a discharge arc 13 and / or a header 18.

[0081] In the first of the two applications, the measuring device 5 is assigned to a surface element 32 that at least partially forms a channel wall 16 of the conveying channel 15. The channel wall 16 is located downstream of the processing unit 12 in the conveying direction F1 and upstream of the acceleration unit 14.

[0082] In the second of the two arrangements, the measuring device 5 is assigned to a surface element 32, which at least partially forms a housing wall 17 of the acceleration unit 14.

[0083] The surface elements 32 of the channel wall 16 and / or the housing wall 17 are, as expected, subject to high stress in the conveying channel 15. The harvested crop 9 is accelerated by the units 12, 14 and impacts the inner walls of the conveying channel 15 at high speed, essentially impacting the channel wall 16 and / or the housing wall 17, where it is then guided along these walls 16, 17 in the conveying direction F1. Consequently, the impact and / or guidance of the harvested crop 9 causes the aforementioned wear and / or weak points on the channel wall 16 and / or the housing wall 17. The arrangement of the measuring device 5 on the highly stressed surface elements 32 of the walls 16, 17 is advantageous because it allows the condition of the walls 16, 17 to be checked, and thus effectively prevents failure of the machine 1.

[0084] In contrast to the illustrated embodiments, it is also possible, without limiting the idea of ​​the invention, that one or more measuring devices 5 are assigned to the surface element 32 of the discharge arc 13, the channel wall 16 and / or the housing wall 17.

Claims

1. Component for a mobile work machine, comprising: • a conveyor device (3) having a conveying means for guiding and / or conveying goods (9) to be transported in at least one conveying direction (F1, F2), and having a conveying chamber (31) within which the goods (9) to be transported can be moved in at least one of the conveying directions (F1, F2); • a surface element (32, 33) which at least partially surrounds the conveying chamber (31) and has a first surface (321, 331) facing the conveying chamber (31) and a second surface (322, 332) facing away from the conveying chamber (31), wherein the second surface (322, 332) is spaced apart from the first surface (321, 331); • a measuring device (5) which is assigned to the second surface (322, 332) and is designed to detect the spatial correspondence between the first surface (321, 331) and the second surface (322, 332), characterized in that the measuring device (5) has a sensor (51) which is at a defined sensor distance (52) from the second surface (322, 332).

2. Component for a mobile work machine according to claim 1, characterized in that the sensor (51) is guided in a positionally variable manner along the second surface (322, 332).

3. Component for a mobile work machine according to at least one of the preceding claims, characterized in that the sensor (51) of the measuring device (5) is designed to be pressed against the second surface (322, 332).

4. Component for a mobile work machine according to at least one of the preceding claims, characterized in that the sensor (51) is configured to detect a quantity of material in a material expansion direction (53) of the surface element (32, 33), wherein the material expansion direction (53) extends from the second surface (322, 332) toward the first surface (321, 331) and away from the sensor (51).

5. Component for a mobile work machine according to at least one of the preceding claims, characterized in that the sensor (51) can apply sound waves to the surface element (32, 33) on the second surface (322, 332) so that detection of the distance between the first surface (321, 331) and the second surface (322, 332) can be achieved thereby.

6. Component for a mobile work machine according to at least one of the preceding claims, characterized in that the sensor (51) is designed as an electromagnetic-acoustic transducer.

7. Component for a mobile work machine according to at least one of the preceding claims, characterized in that it has a control device (6) which is provided for receiving and / or processing a measurement signal from the measuring device (5).

8. Component for a mobile work machine according to claim 7, characterized in that the control device (6) is provided for transmitting a control signal and / or a display signal to a display unit (7).

9. Component for a mobile work machine according to at least one of claims 7 or 8, characterized in that the control device (6) is designed to emit a warning signal if a critical distance between the first surface (321, 331) and the second surface (322, 332) is undershot.

10. Transport vehicle (21) comprising a transport container (22), wherein the transport container has a conveying space (24, 31) and a bottom wall (23) which is designed for loading or unloading the transport container (22), characterized in that the transport vehicle (21) comprises a component according to any of the preceding claims.

11. Transport vehicle (21) according to claim 10, characterized in that the bottom wall (23) comprises a conveyor device (3) formed by sliding floor profiles (231, 232, 233), wherein the sliding floor profiles (231, 232, 233) are driven translationally in the conveying direction (F2).

12. Transport vehicle (21) according to claim 11, characterized in that one of the sliding floor profiles (231, 232, 233) forms the surface element (33), the first surface (331) of which faces the conveying space (24, 31).

13. Mobile work machine (2) which is formed as a combination of a towing vehicle (26) and a transport vehicle, wherein the towing vehicle (26) has a travel drive for driving ground engagement means (4), characterized in that the transport vehicle (21) is designed according to any of claims 10 to 12.

14. Mobile working machine (1) which is designed as a harvesting machine (1) and has a travel drive for driving ground engagement means (4), wherein the conveyor device (3) is arranged in the conveying direction (F1) downstream of a processing unit (12) for chopping harvested material (9) and the conveyor device (3) comprises an ejection outlet (13) for transferring the material (9) to be transported to a transport vehicle, characterized in that the harvesting machine (1) comprises a component according to at least one of claims 1-9, wherein the ejection outlet (13) comprises the surface element (32).