Paver

Abstract

The invention relates to a paver, in particular a slipform paver, having a machine frame (1) supported by a front chassis (2) and a rear chassis (3) and a paving device (6) for paving material. The invention also relates to a method of operating a paver. The paver is provided with a pavement monitoring device (13) configured to generate height profile data or signals describing a height profile of the material deposited in the pavement of the paving device (6) in a direction transverse to the working direction (X). Furthermore, the paver has a data or signal processing device (16) which receives the height profile data or signals. The pavement monitoring device (13) provides the required data such that the material to be paved can be more uniformly spread across the working width of the paver during a feeding operation by means of a spreading device for spreading the material in a direction transverse to the working direction (X), and / or the spreading device can be controlled to improve spreading of the material after feeding of the paver.

Description

Technical Field

[0001] This invention relates to a paver, particularly a slipform paver, having a machine frame supported by a chassis and a paving device for spreading materials. Additionally, this invention relates to a method for operating such a paver. Background Technology

[0002] Pavers are used to pave unbonded and bonded layers, such as asphalt or concrete. Slipform pavers equipped with slipforms are used to pave concrete surfaces.

[0003] Known slipform pavers allow for particularly economical concrete paving. The concrete to be paved is deposited directly in front of the slipform paver or conveyed to the paver from the side via a conveyor belt. The slipform paver can be equipped with a spreading device, such as a spreading plow or spreading auger, to evenly spread the concrete across the entire paving width. After spreading, the concrete is uniformly compacted using an electric or hydraulic vibrator. The slipform then molds the concrete surface to a defined width and thickness during its forward travel.

[0004] Slipform pavers are disclosed, for example, in DE 10 2011 101 944 A1, DE 10 2006 010 793 A1 and WO 2012 / 155904 A2.

[0005] In practice, there is a problem in evenly distributing a sufficient amount of paving material (such as concrete) across the working direction of the paver. Typically, material is unloaded from the front side of the paver using an excavator, or transported by truck and dumped in front of the paver in the working direction. Individual clumps inevitably form, so the material must be evenly distributed across the entire working width. Although the spreader of a slipform paver can spread the material evenly, the goal is to deposit the material laterally in the working direction in front of the paver with the most uniform possible distribution. However, this is not easily achieved in practice because the area is either invisible or poorly visible, especially to the excavator operator and the truck driver. Furthermore, there must always be a sufficient volume of material. Summary of the Invention

[0006] The object of this invention is to create a paver that simplifies the paving process and, in particular, facilitates the feeding of the material to be paved. Another object of this invention is to improve the distribution of material to be paved across the entire working width.

[0007] According to the invention, these objectives are achieved by the features of the independent claims. The subject matter of the dependent claims relates to advantageous embodiments of the invention.

[0008] The paver according to the invention, particularly the slipform paver, has an apron monitoring device configured to generate elevation profile data or elevation profile signals that describe the elevation profile of material deposited in the paver surface in a direction transverse to the working direction. Additionally, the paver has a data or signal processing device for receiving the elevation profile data or elevation profile signals, which enables the processing of the elevation profile data or elevation profile signals.

[0009] In this context, the data or signal refers to all information items describing the height profile obtained through measurement. The height profile data or signal can be analog or digital measurements that can be used for further evaluation.

[0010] A data or signal processing device is a device that allows the processing of data or signals (measurements) obtained through pavement monitoring devices. The data or signal processing device may include analog or digital circuitry and may be a stand-alone unit of the paver or part of a central computing and control unit. For example, the data or signal processing device may have a general-purpose processor, a digital signal processor (DSP) for continuously editing digital signals, a microprocessor, an application-specific integrated circuit (ASIC), an integrated circuit composed of logic components (FPGAs) or other integrated circuits (ICs), or hardware components. Data processing programs (software) can run on the hardware components. Combinations of various components are also possible.

[0011] Height profiles describe the distribution of material in a direction transverse to the working direction. In this context, height distribution can be understood not only as a vertical cross-section of one or more aggregates of material in the pavement of a paving device operating transversely to the working direction—that is, the lateral expansion (width) of the material aggregates—but also as height profile data or signals describing the distribution of material in the working direction. Therefore, height profile data or signals can describe an image of aggregates along transverse lines or strips, or the total or partial volume of the aggregates.

[0012] The height profile can be determined with reference points on the paver, particularly relative to the top edge of the concrete trough. To determine the height profile relative to the reference point, a pavement monitoring device or its height profile sensor system can be attached to the machine frame at defined locations. Alternatively, the height profile can be determined relative to the substrate. For this purpose, it may be necessary to know the paver's machine configuration and orientation relative to the substrate, particularly the location of the lifting posts or information from the leveling system. This data is typically available in the machine controller. The advantage of determining the height profile relative to the substrate is that the actual volume of concrete deposited in front of the paver can be determined.

[0013] The pavement monitoring device provides data that, during paver feeding, allows for a more uniform distribution of material across the paver's working width and / or allows for control of the distribution device to improve material distribution after paver feeding.

[0014] One embodiment of the invention is configured such that a data or signal processing device is configured to determine volume data from height profile data or height profile signals, the volume data describing the volume of material deposited in front of the paving device. Further data or signal processing can then be performed on this volume data in the data or signal processing device. If the volume of the deposited material is known, the duration of that volume can be calculated. If the volume is insufficient, the paver's feed rate can be reduced or the paver can be stopped. If the volume of material to be paved is known, the material requirement can also be determined.

[0015] A particularly preferred embodiment is configured such that the data or signal processing device is configured to determine, from height profile data or height profile signals and from data describing a given nominal height, the height profile portions where the height of the material is equal to or greater than the nominal height and / or the height profile portions where the height of the material is less than the nominal height. In this way, the heights of the various accumulations in front of the paving device can be determined. Therefore, the data describing the nominal height provides insight into which areas material must still be deposited, and / or to which areas the material must be transported.

[0016] In the simplest case, data describing a specified nominal height can only define a single value for the nominal height. To determine whether the height of material accumulation is sufficient, multiple height values ​​can be specified, for example, to form an average value, which indicates the height of material accumulation in a defined area.

[0017] The data describing the nominal height can be a specified value or an automatically determined value, such as the nominal height itself. The paver may have an input device that allows the nominal height to be manually entered. The nominal height depends particularly on the paving height, paving width, paving speed, and material characteristics of the material to be paved. A data or signal processing device can be configured to automatically determine the data describing the specified nominal height based on the paving height and / or paving width and / or paving speed and / or material characteristics of the material to be paved, as input using the input device.

[0018] The paver preferably has a display and / or signaling device that cooperates with a data or signal processing device and is configured to display or output symbols and / or signals of height profile. For example, the display and / or signaling device can be used to display the volume of deposited material. When the volume exceeds or falls below a specified value, particularly the volume required for paving, the display and / or signaling device can also issue (alarm) signals, such as visual or audible alarm signals.

[0019] The display and / or signaling device may have one or more display and / or signaling components, such as screens, optical, acoustic, or tactile signal generators. The display and / or signaling components may be mounted on the paver's machine frame and / or on a portable unit, particularly a tablet computer, or on another paver in a group of pavers. The display and / or signaling components on the machine frame should preferably be clearly visible to the truck driver; that is, the surface of the display and / or signaling components should be in a plane transverse to the working direction and pointing in that direction.

[0020] A particularly preferred embodiment is configured such that the display and / or signaling device displays or outputs a first symbol and / or signal for the portion of the material height less than the nominal height, and displays or outputs a second symbol and / or signal for the portion of the material height greater than the nominal height. This embodiment provides the excavator operator or truck driver with the information needed for the most uniform feeding possible.

[0021] Another aspect of the invention is not visualization of the feeding process, but control of the spreading process by means of a paving monitoring device. The spreading of material transverse to the working direction is carried out by a spreading device arranged in front of the paving device in the working direction.

[0022] To control the scattering operation, the paver has a control unit that works in conjunction with a data or signal processing device. This control unit is configured to guide the paver to transport material from portions where the material height is greater than the nominal height to portions where the material height is less than the nominal height, thereby distributing the material as evenly as possible across the paver's entire working width. This control can be based on an algorithm that enables particularly rapid and efficient material scattering. Material scattering can be performed using known scattering devices.

[0023] In a preferred embodiment, the automatic distribution of material is performed by a distribution device having a distribution member, also known as a distribution plow, that can move laterally to the working direction. The distribution member can be raised from a lower position to a higher position and lowered from a higher position to a lower position, thereby traversing accumulations of material or pushing the material to either side. The distribution device is configured to generate positional data describing the position of the distribution member and can be evaluated by a control device.

[0024] The data or signal processing device is configured to determine whether the portion of the material whose height is greater than the desired height is to the left or right of the portion where the material height is less than the desired height. Control of the distributing member depends on whether the portion of the material whose height is greater than the nominal height is to the left or right of the portion where the material height is less than the nominal height, and also on whether the distributing member is to the left or right of the portion where the material height is greater than the nominal height. Based on height profile data or height profile signals obtained through the pavement monitoring device and position data from the control device, the distributing member is lowered or raised and moved to the left or right to detect excess material and transport it to areas of material shortage.

[0025] However, material distribution can also be achieved using known spreading augers. If the spreading device has multiple spreading augers, such as left and right spreading augers, one or more spreading augers can be controlled according to the material distribution to distribute the material evenly across the entire working width.

[0026] The pavement monitoring device preferably has a distance measurement system configured to measure the distance between at least one reference point associated with the machine frame and the surface of the material.

[0027] In one embodiment, the distance measurement system of the pavement monitoring device has multiple distance sensors distributed laterally to the working direction, particularly laser sensors, ultrasonic sensors, inductive or capacitive distance sensors, each assigned to a specific portion of the height profile. As a result, the entire working width of the paver is divided into multiple sections, each monitored by one or more distance sensors.

[0028] Distance sensors are configured to measure the distance between a reference point associated with the machine frame and the surface of the material located within the portion associated with the distance sensor. Each distance sensor can be used for point measurements or measurements relative to a specific area of ​​the accumulated material surface. However, a distance measurement system may also have only one distance sensor.

[0029] Instead of one or more conventional distance sensors, or in addition to one or more conventional distance sensors, distance measurement can be performed using a distance measurement system with one or more camera systems, wherein the camera system is designed to calculate the range of a single pixel in a captured image. This prior art camera system utilizes a time-of-flight method to measure distance. The pavement is illuminated by light pulses, and the time required for the light to return to the camera is measured for each pixel. The range is then calculated based on the time of travel. Thus, in this embodiment, the height profile data or height profile signal describes a three-dimensional image of the material accumulation and allows it to be measured, thereby determining its volume and / or dispersion. These camera systems are called TOF cameras (time-of-flight cameras). The distance measurement system may have one or more TOF cameras that record at least a portion of the pavement from which the dispersion device is located.

[0030] In principle, any desired technology used to determine range or distance can be used, such as 3D or stereoscopic cameras.

[0031] A pavement monitoring device with a distance measurement system can be configured as a structural unit. For example, distance sensors or camera systems can be mounted on a frame arranged along the working direction in front of the paving device. One embodiment is configured such that the pavement monitoring device includes multiple modular units, each module having one or more distance sensors or one or more camera systems distributed across the working direction. This modular construction of the pavement monitoring device allows for adaptation to different working widths of the paver, wherein the number of modules used is determined by the working width of the paver.

[0032] Furthermore, the paving process, such as the volume of concrete being laid, can be documented using pavement monitoring devices. This is important because the volume of concrete deposited in front of the paver differs from the volume of concrete already laid, as the concrete is compacted during the paving process. Therefore, for example, the degree of compaction can be assumed and / or the concrete requirements for future construction phases can be predicted. Attached Figure Description

[0033] Embodiments of the present invention will now be explained in more detail with reference to the accompanying drawings.

[0034] in: Figure 1 This is a highly simplified schematic side view of a slipform paver; Figure 2 From Figure 1 A schematic diagram of a slipform paver pointing in the direction of arrow II; Figure 3 It is a block diagram of the input and control devices of a camera system, data or signal processing device, display device, and distribution device; Figure 4 This is a flowchart illustrating the control of the drive unit of the distribution device; Figure 5A and Figure 5B It is used for explanation Figure 4 A schematic diagram of material accumulation in each method step; Figure 6 It is a pavement monitoring device composed of multiple modular units; and Figure 7 This is a combined paver shown in a highly simplified schematic diagram.

[0035] Explanation of reference numerals in the attached figures H 实际 actual height H 标称 Nominal height. Detailed Implementation

[0036] Figure 1 A side view of a slipform paver, used as an example, is shown in a highly simplified schematic diagram. Figure 2 A highly simplified schematic diagram shows a front view of a slipform paver as an example, illustrating only the essential components of the invention. The slipform paver has a machine frame 1 supported by two height-adjustable front underframes 2 and two height-adjustable rear underframes 3. The front and rear underframes 2 and 3 are attached to the machine frame 1 in the working direction X via front and rear lifting columns 4 and 5, respectively, so that the machine frame 1 can be raised or lowered. A working device in the form of a slipform 6 (shown only in outline) is arranged on the machine frame between the underframes 2 and 3.

[0037] The material M (concrete) to be paved is deposited in front of the slipform paver along the working direction X. In fact, multiple concrete aggregates are formed as the material is deposited, spreading across the entire working width. Figure 1 The cross-section of the material accumulation is shown.

[0038] The slipform paver is equipped with a spreading device 7, which has a spreading member 8 that can move laterally in the working direction to evenly spread concrete across the entire working width. To adjust the height of the concrete to be spread, the slipform paver is equipped with a scraper member 9 extending laterally in the working direction. In the working direction X, a vibrator 10 for compacting the concrete is located behind the scraper member 9.

[0039] Figure 1 The concrete surfaces in front of and behind the scraping member 9 in the working direction X are shown, as well as the surface of the concrete track 11 behind the slipform 6. The concrete surfaces are smoothed using a smoothing device 12 arranged behind the slipform 6.

[0040] The slipform paver is equipped with a pavement monitoring device 13 for monitoring the area of ​​site 14 (pavement) on which the material (concrete) to be paved is deposited. The pavement monitoring device 13 includes a distance measurement system having multiple distance sensors or camera systems 15 arranged laterally to the working direction X of the slipform paver, preferably at constant distances. In this exemplary embodiment, the slipform paver has a total of six distance sensors or camera systems 15 spanning the entire working width. Figure 2 Three distance sensors or camera systems 15 are shown schematically only. The number of distance sensors or camera systems 15 is determined by the coverage area of ​​the sensors or systems and the working width of the slipform paver, which is preferably adjustable. For example, only two or three distance sensors or camera systems 15 may be provided. However, the pavement 14 of the slipform paver can also be monitored using only one camera system. The distance sensors measure the distance between a reference point associated with the machine frame 1 and the surface of the material M. The height of the reference point associated with the machine frame 1 relative to the surface of the site can be determined from a specified paving height or the raised position of the lifting column, wherein the actual height H of the material M relative to the ground can then be calculated from the height of the reference point.

[0041] In this exemplary embodiment, the distance measurement system of the pavement monitoring device 13 has multiple TOF camera systems 15 attached to the cantilever 1A of the machine frame 1. Each camera system 15 has an illumination unit (not shown) for illuminating the pavement 14, a lens for collecting light reflected from the environment, a TOF sensor for measuring the transmission time for each pixel, and an interface for outputting data. The TOF camera system is prior art.

[0042] Additionally, the pavement monitoring device 13 includes a data or signal processing device 16. In this exemplary embodiment, the data processing device 16 is configured to process data from the TOF camera system 15. The data processing device 16 is configured to generate height profile data based on the data read from the TOF camera system 15, which describes the height profile of the material M deposited in the pavement of the distributing device 7 in a direction extending transversely to the working direction X.

[0043] A TOF camera system 15 is assigned to a specific section to monitor the height of the deposited material. In this embodiment, the working width is divided into six sections, wherein... Figure 2 Only three sections, I, II, and III, are shown. The data processing unit 16 determines the height H of the accumulated material in each section from data from the TOF camera system. Multiple camera systems 15 or distance sensors may also be assigned to sections. Data evaluation can be based on known algorithms. For example, an average value can be formed based on data from the camera systems or distance sensors assigned to the sections.

[0044] In this exemplary embodiment, for each of the six sections, the data processing device 16 determines a value of the height H of the material in the corresponding section, such as the maximum height. These values ​​are stored in the memory 16A of the data processing device 16.

[0045] The pavement monitoring device 13 also includes an input device 17, such as a keyboard 17A or a touchscreen. Through the input device 17, the slipform paver operator can manually input the nominal height H. 标称 The nominal height H 标称 It is stored in the memory 16A of the data processing device 16.

[0046] The data processing device 16 is configured such that the height value H assigned to each part 实际 With nominal height H 标称 A comparison is made. If the material height is less than the nominal height, it is assumed that the material quantity in the relevant section is insufficient; and if the material height is equal to or greater than the nominal height, it is assumed that there is sufficient material. Figure 1 or Figure 2 In the diagram, the given nominal height H of material M is marked. 标称 and actual height H 实际 .

[0047] Additionally, the pavement monitoring device 13 includes a display or signal device 18, which has a plurality of display or signal members 19 corresponding to the number of parts. In this exemplary embodiment, six display members 19 are provided, and in this exemplary embodiment, the six display members 19 are display panels attached to the cantilever 1B of the machine frame 1.

[0048] The display or signal component 19 is positioned within the driver's field of vision as the driver dumps material in front of the slipform paver, transverse to the working direction X. The display or signal component 19 can be attached to a component of the machine frame 1.

[0049] However, the display or signal device 18 may also have a display or signal component 19 not mounted on the slipform paver. The display or signal component may also be mounted on the portable display or signal unit 20. In this exemplary embodiment, an additional display or signal unit 20 in the form of a flat panel is provided, with the display component 19 displayed on its screen, and it may have a signal component 19, such as a speaker. Figure 3 ).

[0050] The portable display unit 20 communicates with the data processing device 16 via a wired or wireless connection (e.g., via WLAN or data transmission according to the Bluetooth standard). The portable display unit 20 can also replace the display panel on the slipform paver.

[0051] Regarding the height H of the material 实际 Greater than or equal to the nominal height H 标称 In section I, the display or signaling device 18 displays a first symbol 19A, such as a cross. For sections II and III where the material height is less than the nominal height, the display or signaling device 18 displays a second symbol 19B, such as an upward-pointing arrow. Symbols 19A and 19B can be of a certain color. For example, a cross can be displayed using a green LED array, and an arrow can be displayed using a red LED array. The red arrow signals to the truck driver to pour more material into the relevant section. The green cross signals that there is sufficient material in that section. This facilitates the feeding of the slipform paver.

[0052] One embodiment is configured such that the display or signaling device 18 not only displays or sends a signal indicating whether there is sufficient material in the relevant section, but also displays the height of the material, for example, in cm. The nominal height H can also be calculated and displayed. 标称 Values ​​that are reduced or exceeded. In these exemplary embodiments, an additional alphanumeric display component 19' is provided. However, only the alphanumeric display of the material height is possible.

[0053] The TOF camera system 15 allows for three-dimensional measurement of material deposited in the pavement of a slipform paver. Another embodiment is configured such that the data processing unit 16 is configured to determine volume data describing the volume of material deposited in front of the spreading device 7 from height profile data. This volume data is displayed on a display device 18. For example, the material volume is calculated separately for each portion, and the material volume is displayed separately for each portion on an alphanumeric display member 19'. Another embodiment is configured to use the display device 18 to calculate and display the total volume.

[0054] The data processing unit 16 may be part of the central control and computing unit 21 of the slipform paver, or it may form a separate unit that cooperates with the central control and computing unit 21 of the slipform paver. The determined total volume can be used as the basis for further evaluation in the data processing unit 16 or the control and computing unit 21. The slipform paver can be controlled based on the data determined in this way.

[0055] In one embodiment, the data processing device 16 is configured such that it calculates whether the volume (amount) of material present within a certain time period is sufficient. Additionally or alternatively, the data processing device may also calculate the amount of material still to be deposited during that period.

[0056] Another embodiment does not provide a manual input for the nominal height of the material to be deposited, but instead provides a method for automatically determining the nominal height. In this embodiment, the input device 17 is designed to allow input of the paving height and / or paving width and / or paving speed and / or material characteristics of the material to be paved. The data processing device 16 is configured to calculate the nominal height H based on the paving height and / or paving width and / or paving speed and / or material characteristics of the material to be paved input using the input device 17. 标称 .

[0057] The following describes another aspect of the invention, which has independent inventive significance, namely, it does not require the aforementioned display and can also be used in place of a display.

[0058] The spreading device 7 of the slipform paver has only Figure 2 The drive unit 22, schematically shown, is designed to allow the distributing member 8 to move laterally across the entire working width in the working direction X, and to rise from a lower position and lower from a higher position. Instead of a single distributing plow, multiple distributing members 8 can be provided, which can move horizontally and vertically via the drive unit 22. The drive unit 22 generates position data describing the positions of the distributing members. The position data can be coordinates in a Cartesian coordinate system.

[0059] The control device 23 cooperates with the data processing device 16, and the control device 23 is equipped with a drive device 22 for controlling the spreading device 7. The control device 23 may be part of the central control and computing device 21 of the slipform paver. The control device 23 controls the drive device 22 of the spreading device 7 to transport the material from the part where the material height is greater than the nominal height to the part where the material height is less than the nominal height, so that the material is spread across the entire working width of the paver.

[0060] The following is for reference. Figure 4 as well as Figure 5A and Figure 5B The steps for controlling the distributing member 8 of the distributing device 7, performed by the data processing device 16 and the control device 23, are described. Figure 4 A flowchart showing the various method steps is provided. Figure 5A and Figure 5B This is a schematic diagram of the material accumulation in the various parts I, II, III of the paving surface 14 of the distributing device 7, used to illustrate the various method steps.

[0061] Data processing unit 16 receives height profile data from pavement monitoring unit 13 and position data from drive unit 22 of distribution device 7. Data processing unit 16 then processes the data by analyzing the actual height H of each material accumulation in sections I, II, and III. 实际 With nominal height H 标称Comparisons are used to continuously check whether there is sufficient material in each section I, II, III. If H 实际 Greater than or equal to H 标称 Then assume there is sufficient material ( Figure 4 Step A). Figure 5A This illustrates the situation where there is sufficient material in section I but insufficient material in sections II and III.

[0062] If there is insufficient material in a section, determine the paving height H above the nominal height in the slipform paver. 标称 Total material volume V H And determine that it is lower than the nominal height H 标称 Total material volume V L If V H and V L If the difference between the values ​​is greater than a specified threshold, then it can be concluded that there is sufficient material (step B). Precise volume determination based on height profile data is not necessary. In fact, a rough estimate of the volume is sufficient. If the volume is insufficient, i.e., V... H and V L If the difference is less than a specified threshold, a corresponding display or signal output will be performed. For example, the display and signal device 18 will issue an audible or visual alarm (step C). Figure 5A V is shown H Greater than V L And the total volume is sufficient to distribute the contents evenly.

[0063] Now determine which part P is in. H There is sufficient material volume, i.e., the actual height H. 实际 Is it greater than the nominal height H? 标称 And in which part P L There is not enough material volume, i.e., the actual height H. 实际 Is it less than or equal to the nominal height H? 标称 (Step D) L and D H Then, determine the portion P that has or does not have sufficient volume of material. L or P H The relative position (step E). Determine that the height of the material is greater than the nominal height H. 标称 (i.e., a portion of P with sufficient volume) H The portion P in which the height of the material is less than the nominal height (i.e., the volume is insufficient) L The left side (step F) L ) or the right side (step F) R ).

[0064] exist Figure 5A and Figure 5BIn the middle, part I corresponds to the material whose height is greater than the nominal height H. 标称 Part of P H Part II corresponds to a material height that is less than the nominal height H. 标称 Part of P L .

[0065] If the height of the material is greater than the nominal height H 标称 Part of P H The portion P in which the height of the material is less than the nominal height L The left side (step F) L ), and the portion P in which the height of the material in the dispersing component 8 is greater than the nominal height. H The left side (step G) L Then, the control device 23 lowers the distributing component 8 and moves the distributing component 7 to the portion P where the height of the material is less than the nominal height. L The right side (step H) L ).exist Figure 5B In the diagram, the movement of the distributed components is indicated by arrows.

[0066] If the height of the material is greater than the nominal height H 标称 Part of P H The portion P in which the height of the material is less than the nominal height L The left side (step G) L ), and the control device 23 first moves the distributing member 8 to the right side of the portion where the height of the material is greater than the nominal height, and the distributing member 8 is in a raised state to the portion P where the height of the material is greater than the nominal height. H The left side (step I) L ), that is, to arrive Figure 5B The position shown is then lowered, and the distributing member 8 is moved to the portion P where the height of the material is less than the nominal height. L The right side (step H) L ).

[0067] Similarly, when the height of the material is greater than the nominal height H 标称 Part of P H The portion P in which the height of the material is less than the nominal height L When on the right side, the drive device 22 of the control distributing device 7 (step F) R G R H R I R ).

[0068] If the height of the material is greater than the nominal height H 标称 Part of P HThe portion P in which the height of the material is less than the nominal height L The right side (step F) R ), and the portion P in which the height of the material in the dispersing component 8 is greater than the nominal height. H The right side (step G) R Then, control device 23 lowers the distributing component 8 and moves the distributing component to the portion P where the height of the material is less than the nominal height. L The left side (step H) R ).

[0069] If the height of the material is greater than the nominal height H 标称 Part of P H The portion P in which the height of the material is less than the nominal height L The right side (step F) R ), and the portion P in which the height of the material in the dispersing component 8 is greater than the nominal height. H The left side (step G) R Then, the control device 23 first causes the distributing component 8 to move in an elevated state to the part P where the height of the material is greater than the nominal height. H The right side (Step I) R Then lower the distributing member 8 and move the distributing member to the portion P where the height of the material is less than the nominal height. L The left side (step H) R ).

[0070] Figure 6 A pavement monitoring device 13, comprising multiple modular units M1, M2, is shown. In this exemplary embodiment, each modular unit M1 or M2 has two distance sensors or camera systems 15, respectively assigned to parts I, II, III, and IV. Two modular units M1, M2 are used for double the working width, which can be arranged side-by-side on the machine frame 1 and interconnected via wired or wireless connections (not shown) to enable data transmission between units. For triple the working width, for example, three modular units are used. The modular units can be electrically connected to a data processing device 16 via wired or wireless connections (not shown) to transmit data. The modular units can have a common display or signal unit or their own display or signal unit. All modular units can be used to control the distribution device. The modular construction allows for the general use of the pavement monitoring device 13.

[0071] The following is for reference. Figure 7 Describes a combined paver used for two-layer concrete paving. Figure 7A combined paver is illustrated in a highly simplified schematic diagram. The combined paver includes a leading base concrete paver 30 that paves the lower layers and a following base concrete paver 40 that paves the upper layers. Feeding of the top concrete paver 40 takes place on the pavement 50 of the base concrete paver 30. To feed the top concrete paver 40, an additional feed point is located in front of the base concrete paver 30 in the working direction X. For this purpose, a conveying device 45 is provided, which has a chute 45A and a belt conveyor 45B. Material is placed in the chute 45A by an excavator or truck, and the belt conveyor 45B transports the material against the working direction X to the pavement 55 of the top concrete paver 40.

[0072] At least the subsequent slipform paver 40 (top concrete paver) was equipped with reference Figures 1 to 6 The pavement monitoring device 13 is described for a slipform paver. On the combined paver, display and signaling devices 18 (… Figures 1 to 6 The excavator 30 has a display or signal unit 20' located within the field of vision of the machine operator or truck driver, for example, in the front area of ​​the subgrade concrete paver 30. The display or signal unit 20' can also be designed as a mobile display unit, for example, in the driver's cab of the excavator or truck. If the subgrade concrete paver 30 also has a pavement monitoring device 13, then the display or signal unit 20' can be the display or signal unit 20 of the pavement monitoring device 13 of the subgrade concrete paver 30.

[0073] The pavement monitoring device 13 of the top-level concrete paver 40 continuously monitors the volume of material in the pavement 55. The pavement monitoring device 13 is configured to use height profile data or signals to determine volume data describing the volume of material deposited in front of the scattering device 7 of the top-level concrete paver 40. This volume data is then further processed in the data or signal processing device 16 to determine if there is a sufficient amount of material. If the volume is insufficient, an indication easily identifiable by the truck driver is issued by the display or signal unit 20', or a signal is output by the display or signal unit 20'. Alternatively or additionally, intervention may be made in the machine control of the top-level concrete paver 40 and / or the bottom-level concrete paver 30.

Claims

1. A paver, particularly a slipform paver, having a machine frame (1) supported by a base frame (2, 3) and a paving device (6) for paving materials. Its features are, The paver has the following features: A pavement monitoring device (13) is configured to generate height profile data or height profile signals that describe the height profile of material (M) deposited on the pavement (14) of the paving device (6) in a direction extending transversely to the working direction (X); and A data or signal processing device (16) that receives height profile data or signals to process the height profile data or signals.

2. The paver according to claim 1, characterized in that, A spreading device (7) is provided for spreading the material to be paved in a direction extending laterally to the working direction (X). The spreading device (7) is arranged in front of the paving device (6) in the working direction (X), and the paving monitoring device is configured to generate height profile data or height profile signals that describe the height profile of the material deposited in front of the spreading device (7).

3. The paver according to claim 1 or 2, characterized in that, The data or signal processing device (16) is configured to determine volume data describing the volume of material (M) deposited in front of the paving device (6) from height profile data or height profile signals.

4. The paver according to any one of claims 1 to 3, characterized in that, The data or signal processing device (16) is configured to process data based on height profile data or a description of a predetermined nominal height (H). 标称 The signal and data are used to determine whether the height of the material is equal to or greater than the nominal height (H). 标称 The height profile portions (I, II, III) of the material and / or the height profile portions (I, II, III) of the material whose height is less than the nominal height.

5. The paver according to claim 4, characterized in that, The paver has an input device (17), wherein the data or signal processing device (16) is configured to determine, based on the paving height and / or paving width and / or paving speed and / or material characteristics of the material to be paved (M) input using the input device (17), a description of the predetermined nominal height (H). 标称 (Data).

6. The paver according to any one of claims 1 to 5, characterized in that, A display and / or signal device (18) is provided, which cooperates with the data or signal processing device (16) and is configured to display or output symbols (19A, 19B) and / or signals of high profile features.

7. The paver according to claim 6, characterized in that, The display and / or signal device (18) has a display and / or signal component (19) disposed on the machine frame (1) and / or a display and / or signal component (19) disposed on the portable unit (20).

8. The paver according to claim 6 or 7, characterized in that, The display and / or signal device (18) is configured such that, for cases where the height of the material (M) is less than the nominal height (H) 标称 Parts (II, III) of the material (M) display or output the first symbol (19B) and / or signal, and for which the height of the material (M) is greater than the nominal height (H) 标称 The part (I) of the display or output of the second symbol (19A) and / or signal.

9. The paver according to claim 4, characterized in that, A control device (23) is provided to cooperate with the data or signal processing device (16), the control device (23) being configured to control the distributing device (7) such that the material (M) is distributed from which the height of the material is greater than the nominal height (H). 标称 (I) The portion (II, III) into which the material is conveyed at a height less than the nominal height.

10. The paver according to any one of claims 2 to 9, characterized in that, The distributing device (7) includes a distributing member (8) capable of moving laterally in the working direction (X), the distributing member (8) being capable of rising from a lower position to a higher position and falling from a higher position to a lower position, and the distributing device (7) generating position data describing the position of the distributing member.

11. The paver according to claim 10, characterized in that, The data or signal processing device (16) is configured to determine that the height of the material (M) is greater than the nominal height (H). 标称 Part (I) is where the height of the material is less than the nominal height (H). 标称 The left or right side of part (II); and When the height of the material is greater than the nominal height (H) 标称 The portion containing the material has a height less than the nominal height (H). 标称 The left side of the part, and the dispersing member (8) in which the height of the material is greater than the nominal height (H) 标称 When on the left side of the part, The control device (23) is configured to lower the distributing member (8) and move it such that the height of the material therein is less than the nominal height (H). 标称 The right side of the part; and When the height of the material is greater than the nominal height (H) 标称 The portion containing the material has a height less than the nominal height (H). 标称 The left side of the part, and the distributing component (8) is located where the height of the material is greater than the nominal height (H). 标称 When the right side of the part is ) The control device (23) is configured to first guide the distributing component (8) to a position where the height of the material is greater than the nominal height (H). 标称 The left side of the part is then lowered and moved to a position where the height of the material is less than the nominal height (H). 标称 The right side of the part; or, When the height of the material is greater than the nominal height (H) 标称 The portion containing the material has a height less than the nominal height (H). 标称 When the right side of the portion of the material is greater than the nominal height, and the distributing member (8) is located on the right side of the portion where the height of the material is greater than the nominal height, The control device (23) is configured to cause the distributing component (8) to descend and move to a position where the height of the material is less than the nominal height (H). 标称 The left side of the part; and When the height of the material is greater than the nominal height (H) 标称 The portion containing the material has a height less than the nominal height (H). 标称 The right side of the part, and the distributing component (8) is located where the height of the material is greater than the nominal height (H). 标称 When on the left side of the part, The control device (23) is configured to first move the distributing component (8) to a position where the height of the material is greater than the nominal height (H). 标称 The right side of the part is then lowered and moved to a position where the height of the material is less than the nominal height (H). 标称 The left side of the part.

12. The paver according to any one of claims 1 to 11, characterized in that, The pavement monitoring device (13) has a distance measurement system configured to measure the distance between at least one reference point associated with the machine frame (1) and the surface of the material (M).

13. The paver according to claim 12, characterized in that, The distance measurement system has a distance sensor, particularly a laser sensor, an ultrasonic sensor, an inductive or capacitive distance sensor, or has multiple distance sensors, particularly laser sensors, ultrasonic sensors, inductive or capacitive distance sensors, arranged transversely to the working direction (X), each sensor being associated with a specific portion (I, II, III) of the height profile, wherein the distance sensor is configured to measure the distance between a reference point associated with the machine frame (1) and the surface of the material (M) located in the portion of the distance sensor associated with it.

14. The paver according to claim 12, characterized in that, The distance measurement system has one or more camera systems (15) that record at least a portion of the paving surface (14) of the scattering device (7), and the one or more camera systems (15) are configured to calculate the range of each pixel in the recorded image.

15. The paver according to any one of claims 1 to 14, characterized in that, The pavement monitoring device (13) includes multiple modular units (M1, M2), each modular unit having one or more distance sensors or one or more camera systems (15) distributed across the working direction.

16. A method for operating a paver, particularly a slipform paver, the paver having a machine frame (1) supported by a base frame (2, 3), a paving device (6) for paving material, and a spreading device (7) for spreading the material to be paved in a direction extending transversely to the working direction (X), the spreading device (7) being arranged upstream of the paving device (6) in the working direction. Its features are, Height profile data or signals are generated by means of a pavement monitoring device (13), which describe the height profile of material (M) deposited in the pavement (14) of the distributing device (7) in a direction extending transversely to the working direction (X); and The height profile data or signal is processed by the data or signal processing device (16) that receives the height profile data or signal.

17. The method according to claim 16, characterized in that, The data or signal processing device (16) is used to determine volume data from the height profile data or height profile signal, the volume data describing the volume of material (M) deposited in front of the dispersing device (7).

18. The method according to claim 16 or 17, characterized in that, Using a data or signal processing device (16), the height profile data or description of the predetermined nominal height (H) is obtained. 标称 The signal and data are used to determine whether the height of the material is equal to or greater than the nominal height (H). 标称 The height profile of the material (I, II, III) and / or the material height is less than the nominal height (H) 标称 The high-profile portion of the image.

19. The method according to claim 17 or claim 18, characterized in that, Based on the paving height and / or paving width and / or paving speed and / or material characteristics of the material to be paved (M), the data or signal processing device (16) is used to determine the description of the predetermined nominal height (H). 标称 (Data).

20. The method according to any one of claims 16 to 19, characterized in that, Use display and / or signaling devices (18) to display or output symbols (19A, 19B) and / or signals of height profile features.

21. The method according to claim 20, characterized in that, The height of the material (M) is less than the nominal height (H). 标称 Part (II) displays or outputs the first symbol (19B) and / or signal, and for materials in which the height is greater than the nominal height (H). 标称 The part (I) displays or outputs the second symbol (19A) and / or signal.

22. The method according to any one of claims 16 to 21, characterized in that, The material (M) is distributed by the distributing device (7) from where the height of the material is greater than the nominal height (H). 标称 The height of the material conveyed to part (I) is less than the nominal height (H) 标称 Part (II) is used to spread the material across the entire working width of the paver.

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