Releasable attachment to the wiper module

Abstract

The present invention relates to a scraper system for a conveyor system (10) having a conveyor belt (12) and to a method for attaching a scraper module (24) to a scraper system (20). The scraper system (20) comprises a system carrier (22) and a plurality of scraper modules (24) for contacting the conveyor belt (12). The scraper modules (24) are attached to a module carrier (30) which extends parallel to the system carrier on the system carrier (22). The module carrier (30) is releasably attached to the system carrier (22) by means of a clamping assembly which is used to apply a clamping force in a direction perpendicular to the system carrier (22). The clamping assembly has a clamping rod (50) which extends parallel to the system carrier and applies the clamping force by means of a wedging action.

Description

Technical Field

[0001] The invention relates to a scraper system for a conveyor system having a conveyor belt and to a modular carrier segment for such a scraper system. Background Art

[0002] Scraper systems are known for use on conveyor belts, which are used to transport a wide variety of conveyed items. Since the scraping elements contact the conveyor belt as it moves, any conveyed items adhering to the conveyor belt are scraped off. Known scraper systems have a plurality of scraper modules with scraping elements and a system carrier extending transversely to the direction of travel of the conveyor belt.

[0003] Various types and designs of scraper systems and scraper modules are known. For example, DE 10 2017114 931 A1 discloses a scraper system for placement in the deflection region formed by the discharge pulley of a fast-running belt conveyor. Scraper blocks made of elastic material are fastened interchangeably adjacent to one another to a spring-mounted system carrier, which is arranged transversely to the direction of travel of the belt conveyor.

[0004] DE 10 2013 006 821 A1 describes a belt scraper system consisting of modules for use in the return area of a conveyor. The system carrier is arranged transversely to the direction of travel of the conveyor belt. Several scraper modules are attached to the system carrier adjacent to one another. Each scraper module carries a scraper blade that comes into contact with the belt in a peeling manner.

[0005] The scraper system needs maintenance regularly. In particular, the scraper elements attached to the scraper module, such as scraper blades or scraper blocks, must be replaced and exchanged regularly.

[0006] EP 0 270 142 B1 describes a scraper for a conveyor belt, comprising a plurality of scraper elements, each with a scraper blade, arranged adjacent to one another on an elongated carrier extending transversely to the longitudinal direction of the conveyor belt and attached to the frame of the belt conveyor, such that the scraper elements press their free edges against the lower surface of the conveyor belt. The scraper elements are arranged in two groups on two rod-shaped bar elements with a U-shaped cross-section. The bar elements are arranged on a carrier with a rectangular cross-section. At each end, the bar elements have openings into which protruding pins of the carrier engage. At each opposing end, the elements have flanges, to which the bar elements are fastened by screws via threaded connections.

[0007] US2015 / 0360880 A1 relates to a scraper device for a conveyor belt, comprising a removable scraper assembly that is easily connected to and removable from an elongated carrier. The assembly comprises a scraper blade attached to an angle iron support. A pair of clamps serves as a securing mechanism, with which the angle iron support is clamped to a receptacle on the carrier.

[0008] US Pat. No. 3,342,312 discloses a scraping device for a conveyor belt having a plurality of individual scraping blade assemblies. A tube is arranged transversely to the conveyor belt. A holder of L-shaped cross section is rotatably and slidably attached to the tube by means of a C-shaped clamp.

[0009] JP 2016 199383A discloses a scraper for a conveyor belt. The scraper comprises a rod-shaped rubber body with a plate. The rubber body is arranged in a groove in a rack arranged transversely to the conveyor belt. The groove includes side plates, a pressure plate, a receiving plate, and a bottom plate. The rubber body is secured between the pressure plate and the receiving plate by bolts and nuts.

[0010] US 2010 / 219045 A1 discloses a scraper having an elastically deformable blade which is held in a retaining groove to obtain a desired curved shape.

[0011] AU 537018 B2 discloses a cleaning device for a conveyor belt. The cleaning device comprises multiple cleaning units arranged on an elongated support frame extending transversely of the conveyor belt. Each cleaning unit comprises a plate provided with a scraper blade that is pressed against the conveyor belt. A receiving portion in the form of a rectangular rod is mounted on the support frame, such as a circular tube. The cleaning units are held between retaining plates by bolts.

[0012] WO 2019 / 025114 A1 discloses a conveyor belt scraping device. A support shaft has an end part and a connecting middle part, to which a plurality of scraper segments can be attached side by side in a releasable manner. The middle part includes at least two support parts, which are arranged adjacent to each other and are connected to each other and to the end parts in a detachable manner. In one embodiment, the hollow parts are connected as support parts by connecting elements, wherein the two are screwed together. In one embodiment, the scraping segment has the following sliding guide: the sliding guide is locked on the support shaft by means of a locking bolt so that the sliding guide can slide in the longitudinal direction. By the engagement of the connecting elements of adjacent sliding guides, the sliding guides are connected to each other in the longitudinal direction of the support shaft. Summary of the Invention

[0013] It can be considered that the object is to provide a scraper system and a module carrier segment for such a scraper system, wherein the scraper modules can be replaced in a simple manner.

[0014] This object is achieved by the wiper system according to the invention and by the modular carrier segment according to the invention for use in the wiper system. Advantageous embodiments of the invention are also provided.

[0015] The inventors considered that maintenance work on scraper systems is particularly difficult, and in particular, if hazardous contact areas must be entered to replace worn parts, which necessitates protective measures, such as the installation of scaffolding or the like, and requires a prolonged interruption of operation. Therefore, it would be particularly interesting to be able to perform maintenance work on the scraper modules from outside the belt area, ideally without having to work inside the chute or underneath the belt conveyor.

[0016] The inventors therefore propose an easily replaceable attachment for a scraper module, which makes it possible to simplify the process of replacing the scraper module, wherein the time spent in the area below the belt conveyor can be minimized or even avoided completely.

[0017] The scraper system according to the present invention comprises a system carrier that preferably extends transversely to the direction of travel of the conveyor belt. The system carrier can be embodied, for example, as a rod or tube having a circular or rectangular cross-section. The system carrier is preferably fixedly attached to both sides, for example to the belt frame. The system carrier can be arranged so that it is fixed or alternatively movable, in particular in a spring-mounted arrangement.

[0018] The scraper system according to the present invention also has a plurality of scraper modules. These scraper modules are arranged to contact the conveyor belt and, for this purpose, preferably have scraper elements, which can be, for example, edges, thin sheets, scraper blocks or different types of scraper elements. Depending on the type of scraper system and conveyor belt and the arrangement of the scraper system relative to the conveyor belt, the scraper modules can have different configurations. For example, the scraper modules can have one or more elements that can move relative to each other and hinges, springs, etc. arranged between the elements. Similarly, the scraper modules can be, for example, block-shaped elements that are preferably made of flexible material.

[0019] According to a refinement, the wiper module is attached to a module carrier that extends parallel to the system carrier and is releasably attached thereto. To attach the module carrier to the system carrier, a clamping assembly is provided that applies a clamping force acting transversely to the system carrier. The clamping assembly includes a clamping rod that extends parallel to the system carrier and through which the clamping force is applied by a wedging action.

[0020] The scraper system according to this development is therefore characterized by the system carrier, the module carrier, and the clamping rod as three elements aligned in parallel and preferably constructed in an elongated manner. In a further development, these three elements extend at least substantially over the entire width of the conveyor belt, which can enable handling from the side, thereby minimizing or avoiding the need to enter the area under the conveyor belt.

[0021] According to an improvement, the module carrier is attached to the system carrier by a clamping action, wherein the clamping force or at least one component of the clamping force acts in the transverse direction of the system carrier. This clamping produces an at least frictional connection between the module carrier and the system carrier, so that the module carrier preferably remains fixed on the system carrier and makes it possible to accept the forces generated by the contact of the scraper module with the conveyor belt during operation of the scraper system. Optionally, the attachment of the module carrier to the system carrier can be supported by a form-fitting receiving portion, but in order to improve the releasability of the connection from the side, a purely frictional connection can be preferred. The clamping force can act on at least one point of the system carrier and the module carrier; the clamping force preferably acts on the entire length of the module carrier and / or the system carrier, or at least on a number of clamping points spaced apart from each other in the longitudinal direction of the system carrier. Thus, a continuous and lasting connection can be achieved.

[0022] According to this refinement, the clamping force is applied by means of a wedging action, i.e. by acting on the clamping rod in a first direction so as to produce a clamping force in a second direction deviating from the first direction, the first direction being referred to as the wedging direction or insertion direction and the second direction being referred to as the clamping direction and being aligned transversely to the system carrier. The wedging direction can, for example, be aligned parallel to the longitudinal direction of the system carrier; the wedging direction is preferably aligned transversely to the longitudinal direction of the system carrier. The wedging action can result from the wedge-shaped form of the clamping rod or from one or more wedge-shaped elements arranged on the clamping rod; additionally or alternatively, the wedging action can also be produced by separate wedge-shaped elements or wedge-shaped surfaces, which can, for example, be fixedly attached to the system carrier.

[0023] Such a scraper system, which comprises a scraper module on a module carrier and a clamping assembly which is held by means of a clamping lever by means of a wedging action, can be very advantageous because it allows the scraper module to be connected to the system carrier in a manner that is easily established and equally easily released. By using the clamping lever, the scraper system can be designed so that access only from the side, preferably only from one side, is sufficient to establish and / or release the connection.

[0024] According to another refinement, the clamping force can be applied via at least one surface-matching element, wherein at least one of the surfaces involved is a wedge-shaped surface. One of the surfaces involved in the surface-matching element can be provided on the clamping rod, while the other surface is preferably fixed to the system carrier. The wedge-shaped surface can have an inclination of, for example, 1° to 45°, preferably 8° to 30°, and particularly preferably 12° to 20° relative to the insertion direction. This path does not have to be linear, but rather can vary in inclination and curvature. Both surfaces of the surface-matching element can also be wedge-shaped surfaces.

[0025] According to another improvement, at least one retaining element can be arranged on the system carrier and the clamping rod can be arranged between the module carrier and the retaining element. Preferably, a plurality of retaining elements spaced apart are provided in the longitudinal direction of the system carrier. Preferably, the retaining element is directly or indirectly attached to the system carrier in a fixed manner, for example by a threaded connection. The retaining element can, for example, protrude in a direction transverse to the system carrier and thus form a counter-bearing for the clamping assembly. By introducing a clamping rod between the retaining element and the module carrier, a clamping force can be generated in order to fix the module carrier. The retaining element can be connected to the clamping rod or respectively to an element attached to the clamping rod, preferably in each case via a surface mating portion having one or more wedge-shaped surfaces.

[0026] In another refinement, at least one counter-holding element can be arranged on the system carrier at a distance from the retaining element, such that the module carrier and the clamping rod are arranged between the retaining element and the counter-holding element. A plurality of spaced-apart counter-holding elements are preferably arranged in the longitudinal direction of the system carrier, particularly preferably in pairs with corresponding retaining elements. The retaining element and the counter-holding element can, for example, form a clamp into which the clamping rod and the module carrier are clamped.

[0027] According to another refinement, the clamping lever can be subjected to a tensioning force of the connecting assembly in the direction of the system carrier. This tensioning force can then act, for example, in the insertion direction or wedging direction, so that the clamping force is applied transversely to the tensioning force by means of the wedging action. The connecting assembly preferably allows for a gradual application of the tensioning force, for example via a threaded connection, wherein the screw preferably extends transversely to the system carrier, so that the clamping assembly can preferably be tensioned by tightening the screw.

[0028] The connecting assembly can include one or more connecting elements at which the clamping rod can be acted upon in the direction of the system carrier. The connecting assembly preferably includes at least one first connecting element and at least one second connecting element, the first connecting element and the second connecting element being spaced apart from one another in the longitudinal direction of the system carrier. At least some of the scraper modules, preferably all of the scraper modules, are arranged between the first connecting element and the second connecting element, viewed in the longitudinal direction of the system carrier; the connecting elements are particularly preferably each arranged in the end region of the clamping rod and / or the system carrier, i.e. so that they are as easily accessible as possible from the side.

[0029] In a further preferred refinement, it can be provided that the module carrier and / or the clamping rod are connected to the system carrier in an articulated manner at least at one point, i.e., such that the module carrier and / or the clamping rod can be pivoted out relative to the system carrier, at least during an assembly or disassembly step. Preferably, a hinge can be provided in the end region of the system carrier, the clamping rod and / or the module carrier. This pivoting out releases the system carrier, the clamping rod and the module carrier from one another, even if they become adhered to one another, for example due to contamination. This handling can be performed from the side, in particular from the side opposite the hinge.

[0030] An aspect of the invention relates to a preferred possibility of coupling module carrier segments by means of a plug-in connection.

[0031] According to the invention, the plug-in connection is particularly formed such that it can be established and / or released by relative movement of the module carrier segments relative to each other in the insertion direction. In order to secure this plug-in connection, a locking device is provided. In particular, the locking device comprises a locking element, which extends transversely to the insertion direction, preferably at right angles to the insertion direction. The locking element can preferably be moved in the longitudinal direction of the locking element in order to establish the lock or release the lock. The insertion direction of the plug-in connection is preferably transverse to the longitudinal direction of the system carrier, particularly preferably at right angles to the longitudinal direction of the system carrier, while the locking element preferably extends in the longitudinal direction of the system carrier and is also inserted in this direction.

[0032] A permanent and easily producible connection can be produced by means of a plug-in connection with a securing device, while at the same time the risk of accidental release of the connection can be minimized.

[0033] The modular carrier has a plurality of modular carrier segments that are aligned with one another and can be separated from one another. This is advantageous because the modular carrier preferably extends across the entire width of the conveyor belt and can therefore be quite long, which can be a hindrance to handling. Simply subdividing the modular carrier into two modular carrier segments can halve the length, significantly simplifying handling. The modular carrier can preferably be divided into three or more modular carrier segments. This is particularly important when working in confined spaces or on narrow walkways, if there is insufficient space to pull the full-length modular carrier sideways.

[0034] The module carrier segments can, for example, be connected only via the system carrier, i.e. the module carrier segments can be independent of each other and connected only by virtue of their respective attachment to the system carrier. However, the module carrier segments are preferably connected directly, even independently of the system carrier, to form the module carrier.

[0035] The module carrier segments can be connected in various ways, including in particular by screw connections etc. As will be explained in more detail below, connections that can be separated without tools, in particular plug-in connections, are preferred.

[0036] The locking element is, for example, a rod or tube with a circular or rectangular cross-section. The locking element preferably forms a positive fit with the module carrier segments; for example, it can surround or cover these module carrier segments. The positive fit connection preferably allows the module carrier segments to partially or preferably completely surround the locking element. The module carrier segments particularly preferably have longitudinal holes through which the locking element engages. In particular, multiple module carrier segments can be pushed onto the locking element one after the other. The combination of the above-described plug-in connection with such a locking element is particularly preferred.

[0037] The module carrier segment that can be preferably used for the embodiment of the above-mentioned scraper system constitutes a separate aspect of the present invention. The system carries one or more scraper modules. The scraper modules are preferably firmly attached to the system and can have different configurations depending on the intended purpose. The module carrier segment is configured to form a plug-in connection with another module carrier segment of preferably identical construction arranged in front of or behind the module carrier segment (in the longitudinal direction of the system carrier). The module carrier segment includes a longitudinal hole for receiving a locking element.

[0038] To form a plug-in connection, the module carrier segment has a plug-in element at a first end, which extends in a direction transverse to the longitudinal direction. At the opposite second end, the plug-in element has a receiving opening for the plug-in element, which is arranged in a direction transverse to the longitudinal direction, so that the plug-in element can be inserted in this transverse direction and form a positive connection.

[0039] Thus, a plurality of module carrier segments of this type can be arranged one behind the other, coupled by means of corresponding plug-in connections and finally locked by inserting locking elements into preferably aligned longitudinal bores. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Embodiments of the present invention are described in more detail below with reference to the accompanying drawings, in which:

[0041] Figure 1 A conveyor system including a conveyor belt and one embodiment of a scraper system is shown;

[0042] Figure 2 Shown in a three-dimensional diagram Figure 1 The scraper system;

[0043] Figure 3 Shown in a three-dimensional diagram Figure 1 、 Figure 2 Exploded view of the scraper system;

[0044] Figure 4 、 Figure 5 Shown Figures 1 to 3 The scraper system along Figure 2 A..A is a cross-sectional view taken in FIG.

[0045] Figure 6 Shown Figures 1 to 5 A perspective view of a scraper system, wherein a module carrier segment is partially selected;

[0046] Figure 7 Shown Figure 6 An enlarged view of region B;

[0047] Figure 8 Shown in longitudinal section Figures 1 to 7 a view of a portion of a scraper system;

[0048] Figure 9 A second embodiment of the scraper system is shown in cross section;

[0049] Figure 10 A third embodiment of a wiper system is shown in a perspective view. DETAILED DESCRIPTION

[0050] Figure 1A conveyor system 10 is shown having a conveyor belt 12 that is deflected at a discharge pulley 14 .

[0051] The conveyor system 10 comprises a scraper system 20 having a plurality of scraper modules 24. The scraper modules each have a scraping element, here in the form of a scraping blade 26, which is pressed against the conveyor belt 12 in order to scrape off contaminants or the like adhering to the conveyor belt 12.

[0052] In the case of a first embodiment of the scraper system 20 , which is shown in the form of a so-called main scraper, the scraper elements (scraper blades 26 ) come into contact with the lower run of the conveyor belt 12 from below.

[0053] The scraper system 20 has a system carrier 22 which is arranged to extend transversely to the transport direction of the conveyor belt 12. The system carrier 22 is attached to the belt frame by means of fasteners 16 at both ends.

[0054] In the example shown, the system carrier 22 is constructed as a circular tube having three aligned segments—two outer segments and a central segment—which are fastened to one another by means of flanges.

[0055] As from Figure 2 And especially from Figure 3 As is evident from the exploded view in FIG, attached to the upper side of the system carrier 22 is a module carrier 30 to which the wiper module 24 is fastened.

[0056] The module carrier 30 is configured as an elongated tube. Figure 4 As is evident from the cross-sectional view of FIG, the cross-sectional form of the module carrier 30 is essentially rectangular on the outside (with rounded corners). Internally, the module carrier 30 has a longitudinal hole 32, in which a round rod as a locking element 34 is inserted.

[0057] Especially from Figure 7 As is readily apparent from the enlarged view in FIG, a base plate 36 is each securely attached to, preferably welded to, the upper side of the module carrier 30, and the wiper modules 24 are preferably releasably fastened to the base plate 36 by means of threaded connections. The wiper modules 24 each comprise an angle iron 38, which is fastened to the module carrier 30 by means of a threaded connection. Attached to the angle iron 38 via a hinge 40 are wiper rods 42, which carry the wiper blades 26. The hinges 40 are each embodied as spring hinges, so that the wiper blades 26 can be pressed against the belt 12 under spring tension.

[0058] like Figure 3As depicted in FIG, the module carrier 30 with the wiper module 24 fastened thereto can be released from the system carrier 22. The module carrier 30 is attached to the system carrier 22 via a releasable clamping connection by means of separate clamping levers 50.

[0059] For this purpose, a clamp 44 is attached to the upper side of the system carrier 22, which clamp 44 in each case has a front holding element 46 and a rear counter-holding element 48. The module holder 30 is securely clamped in the clamp 44 between the holding element 46 and the counter-holding element 48 by means of a clamping rod 50. For this purpose, the clamping rod 50 has a plurality of wedge elements 52 evenly distributed over its length.

[0060] Figure 4 and Figure 5 Attachment of the module carrier 30 to the system carrier 22 is depicted in FIG. Figure 4 The module carrier 30 with the wiper module 24 , the clamping lever 50 with the wedge element 52 and the system carrier 22 with the clamp 44 are first shown as separate, spaced-apart elements. Figure 5 The clamping arrangement thus formed is shown, wherein the module carrier 30 is received in the clamp 44 between the holding element 46 and the counter-holding element 48 and is clamped by the clamping lever 50 .

[0061] In the embodiment shown, the wedge element 52 of the clamping lever 50 has an outer wedge surface 54 which forms a wedge angle of approximately 15° in the example shown. The wedge surface 54 forms a surface counter-part with the inner side of the retaining element 46 (see FIG. Figure 5 When the clamping rod 50 moves in the wedging direction or the inserting direction ( Figure 5 When the tensioning force F in acts on the system carrier 22, the surface matching portion between the wedge surface 54 and the retaining element 46 generates a clamping force on the module carrier 30, so that the module carrier 30 is clamped in the clamp 44 and is held in a frictional engagement manner.

[0062] A tensioning force F acting on the clamping rod 50 in the insertion direction is applied by a connecting assembly comprising a bolt 56a and a nut 56b. The two bolts 56a are spaced apart from each other in the two end regions of the clamping rod 50 and pass through the clamping rod 50, which has a wider configuration in these end regions. By tightening the nut 56b, a tensioning force F is applied to the clamping rod 50, thereby tensioning the clamping holding device.

[0063] If especially from Figure 3As is evident in the figure, the module carrier 30 is attached to the system carrier 22 at the end shown on the right by means of a hinge 58, so that when the clamping connection is released, the module carrier 30 can be rotated relative to the system carrier 22. The hinge 58 is attached between the locking element 34 of the module carrier and the system carrier 22. As shown in the figure, the module carrier 30 can be pivoted on the system carrier 22 between a swiveled-out position in which the module carrier 30 is spaced apart from the system carrier 22 and an operating position. Figure 3 and Figure 4 ), in the operating position, the module carrier 30 is positioned directly on the system carrier 22 parallel to the system carrier ( Figure 2 、 Figure 5 ). Thus, by operating from the side, the module carrier 30 can be released simply from the system carrier 22 without having to work in the area below the conveyor belt 12.

[0064] In the embodiment shown, the module carrier 30 is not in one piece, but consists of separate, aligned module carrier segments 30 a , 30 b , 30 c which are pushed onto the locking elements 34 .

[0065] The module carrier segments 30a, 30b, 30c are each connected to one another via a fixed plug-in connection. Figure 7 As is evident, each module carrier segment 30a, 30b has a pin 60, the longitudinal direction of which is aligned perpendicular to the longitudinal direction of the system carrier 22 and the locking element 34. The pin 60 is attached to a tongue protruding at one end of the module carrier segment 30b, said tongue being part of the base plate 36 of the respective module carrier segment 30a, 30b. In accordance with this, the module carrier segments 30a, 30b have holes 62 at the respective adjacent ends, the hole direction of which is likewise aligned perpendicular to the longitudinal direction.

[0066] To connect the module carrier segments 30a, 30b, 30c to one another, the module carrier segments 30a, 30b, 30c are aligned and arranged so that the pin 60 of each module carrier segment 30b, 30c engages in the hole 62 of the next module carrier segment 30a, 30b. The insertion direction is aligned perpendicular to the longitudinal direction in each case. Thus, a plug-in connection is established between the module carrier segments 30a, 30b, 30c.

[0067] This plug-in connection is subsequently secured by inserting the locking element 34 through the longitudinal hole 32 of the module carrier segment 30a, 30b, 30c in the longitudinal direction, ie transversely to the insertion direction of the corresponding pin 60 into the hole 60.

[0068] Figure 8 The longitudinal section of the thus formed fixed plug-in connection between the module carrier segments 30a, 30b is shown. The pin 60 engages in the hole 62. The locking element 34 is inserted transversely to the pin 60 and the hole 62 into the aligned longitudinal hole 32. The module carrier segments 30a, 30b are thus fixed to one another in a form-fitting manner during assembly and form the module carrier 30.

[0069] To disassemble the wiper module 24, first remove the clamping rod 50 by releasing the connection assembly with the bolts 56a and nuts 56b on both sides. This releases the clamping assembly so that the module carrier 30 with the locking element 34 can be moved freely with the hinge 58. The module carrier 30 can then be disassembled as shown in FIG. Figure 3 By grasping the handles 64 attached to the ends, the module carrier segments 30a, 30b, 30c can then be slid in the longitudinal direction (see for example Figure 6 Once the module carrier segments 30a, 30b have been slid so far that the locking element 34 is withdrawn from the longitudinal hole 32, the plug-in connection of the pin 60 and the hole 62 can be released so that the module carrier segments 30a, 30b, 30c can be removed from each other.

[0070] Numerous variations, alternatives, and modifications of the illustrated embodiment are possible. Thus, the clamping rod 50 could, for example, have a continuous wedge-shaped cross section, or a different number or arrangement of wedge-shaped elements 52 could be selected. Instead of a single clamp 44, the retaining element 46 and the counter-retaining element 48 could also be configured as strips extending in the longitudinal direction of the system carrier 22.

[0071] Figure 9 A second alternative embodiment of a scraper system 120 is shown, wherein the figure is Figure 5 1 and 2. The scraper system 120 corresponds to the cross-sectional view of the first embodiment of the scraper system 20 in FIG. 1 and, incidentally, the structure of the scraper system 120 also largely corresponds to the structure of the scraper system 20. Identical elements are denoted by the same reference numerals. Only the differences between the embodiments are discussed below.

[0072] In the case of the second embodiment of the wiper system 120, the clamping lever 150 is provided with a rounded element 152, while the holding elements 146 attached to the system carrier 22 are each provided with a wedge surface 154. As in the case of the first embodiment, the rounded element 152 and the wedge surface 154 form a surface pairing with which a clamping force is generated by a tensioning force F by means of a wedging action, which clamps the module carrier 30 between the holding element 146 and the counter-holding element 48.

[0073] Figure 10There is shown a third alternative embodiment of a scraper system 220. Here too, the structure of the scraper system 220 corresponds largely to that of the scraper system 20 according to the first embodiment, and identical elements are denoted by the same reference numerals.

[0074] The only difference of the scraper system 220 compared to the scraper system 20 is the different configuration of the scraper module 224. In the case of the third embodiment, the scraper module 224 has a scraper block 226.

[0075] The scraper system 220 can be used, for example, as a primary scraper for a conveyor system and can be attached so that the scraper blocks 226 are in contact with the conveyor belt 12 in the area of the front side of the discharge pulley 14 .

[0076] As in the case of the first embodiment, the wiper module 224 with the wiper block 226 is attached to a module carrier 30 which is fixed to the system carrier 22 by means of a clamping holding device.

Claims

1. A scraper system for a conveyor system (10) having a conveyor belt (12), the scraper system comprising: - system carrier (22), - a plurality of scraper modules (24, 224) which are arranged against the conveyor belt (12), wherein the scraper modules (24, 224) are arranged on a module carrier (30), wherein the module carrier (30) comprises a plurality of aligned module carrier segments (30a, 30b, 30c), which are connected to one another by means of plug-in connections which can be established and / or released by movement relative to one another parallel to the insertion direction, - and wherein the plug-in connection is locked by a locking element (34) extending transversely to the insertion direction, -Wherein, the locking element (34) is a rod or tube extending in the longitudinal direction of the system carrier (22) and parallel to the system carrier (22), and the locking element (34) locks the plug-in connection of the plurality of module carrier segments (30a, 30b, 30c).

2. The scraper system according to claim 1, wherein The module carrier segments can be pushed one after the other onto the locking element, wherein a relative movement of the locking element and the module carrier segments in the longitudinal direction establishes or releases the locking.

3. The scraper system according to claim 1 or 2, wherein: The rod or the tube has a circular or rectangular cross section.

4. The scraper system according to claim 1 or 2, wherein: The locking element forms a positive fit with the module carrier segment.

5. The scraper system according to claim 1 or 2, wherein: The module carrier segment at least partially surrounds the locking element.

6. The scraper system according to claim 1 or 2, wherein: The module carrier segment partially surrounds the locking element.

7. The scraper system according to claim 1 or 2, wherein: The module carrier has a plug-in element at a first end, which extends in a direction transverse to the longitudinal direction, and a receiving opening for the plug-in element at an opposite second end, which is arranged in a direction transverse to the longitudinal direction.

8. The scraper system according to claim 1 or 2, wherein: The module carrier segments (30a, 30b, 30c) have longitudinal holes through which the locking elements engage.

9. A modular carrier segment for a wiper system (20, 120, 220) according to any one of claims 1 to 8, comprising: - at least one scraper module (24, 224), - a longitudinal hole (32) for receiving a locking element (34), a plug-in element at the first end, said plug-in element extending in a direction transverse to the longitudinal direction, and a receiving opening for a plug element at the opposite second end, wherein the receiving opening is arranged in a direction transverse to the longitudinal direction.

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