Crushing device for crushing mineral material

Abstract

The invention relates to a crushing device for crushing mineral material or the like, comprising a crushing unit (10) having a crushing chamber (30), wherein a crushing device (11), in particular movable, preferably rotatable or pivotable, is accommodated in the crushing chamber (30), wherein the crushing device (11) carries at least one crushing tool (11.2), in particular a crushing tool, wherein the crushing chamber (30) is limited by means of at least one crushing chamber boundary (31), wherein the crushing chamber boundary (31) has an inner side (31.2) facing the crushing chamber (30) and an outer side (31.1) facing away from the crushing chamber (30), and wherein the crushing chamber boundary (31) has an inspection opening (32).To ensure reliable monitoring of the wear condition of the crushing device, a monitoring device (50) held by a carrier (40) is provided for determining the wear condition of at least one wear part arranged in the crushing chamber (30), in particular a crushing or crushing tool (11.2), the monitoring device (50) being adjustable through the inspection opening (32) between a park position and a monitoring position, wherein the monitoring device (50) is arranged outside the crushing chamber (30) in the park position, and the inspection opening (32) is closed by means of a cover (60) in the park position.

Description

[0001] The invention relates to a crushing device for crushing mineral material or the like, with a crushing unit having a crushing chamber, wherein a crushing device, in particular movable, preferably rotatable or pivotable, is received in the crushing chamber, wherein the crushing device carries at least one crushing tool, in particular a crushing tool, wherein the crushing chamber is limited by means of at least one crushing chamber boundary, wherein the crushing chamber boundary has an inner side facing the crushing chamber and an outer side facing away from the crushing chamber, and wherein the crushing chamber boundary has an inspection opening.

[0002] Crushing devices according to the invention can, for example, be designed such that they have a rotor as the crushing unit, which is rotatably mounted in the crushing chamber. Such a crushing device can therefore be, in particular, an impact crusher, a cone crusher, or a roller crusher. Alternatively, it can also be a crushing device in which the crushing unit has a crushing element pivotably arranged in the crushing chamber. Such crushing devices can, for example, be jaw crushers.

[0003] The crushing tool can be an interchangeable tool, for example, one that is connected to the shredding tool in an interchangeable manner. In particular, the crushing tool can be a striking bar, an impact arm, a crushing cone, a crushing roller, or a crushing jaw.

[0004] Within the scope of the invention, the crushing tool need not necessarily be part of the movable part (for example, the rotor or the pivoting crushing body) of the crushing tool. Rather, within the scope of the invention, the crushing tool can be a part that is arranged at least partially within the crushing chamber, for example, an impact arm or a crushing chamber lining, and in particular also a part of the crushing chamber boundary.

[0005] The crushing chamber of crushing equipment of this type, especially rock crushers, is inherently very difficult to access. The necessary safety measures for accessing the crushing chamber further complicate matters. The regularly required inspection of wear parts in the crushing chamber is therefore very time-consuming. Sensor-based wear measurements offer a significant advantage here, both in terms of operator safety and machine downtime. Beyond simply measuring wear, which allows the operator to adjust the crushing gap as wear progresses and to plan the inventory and installation of replacement parts, such a system enables the early detection of damage and the prevention of major machine failures.Furthermore, sensor-based wear measurement offers significant advantages in terms of measurement accuracy compared to the visual assessment by the machine operator that is common today.

[0006] Solutions are known in the prior art where wear parts of a comminution tool are made of a cast material. The measuring system of the detection device is integrated directly into the casting. This is only feasible with considerable effort when working with cast parts. Replacing the wear part also necessitates replacing the detection device, resulting in a high number of parts.

[0007] Methods that determine the coating thickness of wear parts using ultrasound are also known (see DE 2 357 432 B2). Ultrasonic sensors used for coating thickness determination typically employ a sensor head that is attached directly to the wear part. Otherwise, the sound waves would be reflected or refracted when the medium changes (e.g., from air to steel). Such a sensor arrangement is also impractical.

[0008] The object of the invention is to provide a breaking device of the type mentioned above, which enables reliable and safe wear detection.

[0009] This problem is solved by providing a detection device held by a carrier for determining the wear state of at least one wear part, in particular the crushing tool, by making the detection device adjustable through the inspection opening between a park position and a detection position, wherein the detection device is arranged outside the crushing chamber in the park position, and by closing the inspection opening by means of a cover in the park position.

[0010] The detection device is no longer physically attached to the wear part but can be used independently. In its operating position, the detection device is located within the crushing chamber and can monitor the condition of the wear part. Once the condition of the wear part has been monitored, the detection device is moved, preferably by means of an actuator, through the inspection opening into the protected area behind the outer edge of the crushing chamber. This allows the crushing unit to be briefly stopped and the detection device then retracted into the crushing chamber to determine the wear of the wear part. This enables effective and safe monitoring of the wear part's condition. The risk of damage to the detection device from the crushed material and / or dust is virtually eliminated.In the parked position, the inspection opening is closed by the cover. This prevents contaminants, such as dust, from entering the crushing chamber and accumulating on the outer surface of the crushing chamber boundary. The detection device is parked in this area. Accumulated contaminants could impair the adjustment movement and functionality of the detection device. It is also advantageous if the inspection opening remains closed, for example, by the cover or a part of the support, even when the detection device is in the detection position.

[0011] The detection device can be, in particular, an optical measuring device, for example, a measuring device comprising a laser scanner or a camera, preferably a stereo camera (especially a 3D camera) or a 2D camera. It is also conceivable that the detection device comprises one or more laser distance sensors or time-of-flight (ToF) cameras. Electromagnetic distance measurement methods, such as radar or eddy current sensors, or capacitive measurement methods are also conceivable.

[0012] According to the invention, the wear part can be, in particular, the comminution device or a part thereof. It is conceivable that, according to the invention, the wear part is a comminution tool or a part thereof, for example, the crushing tool. It is also conceivable that, according to the invention, the wear part is the crushing chamber lining or a part thereof. Within the scope of the invention, a wear part can also be any other component that comes into contact with the material to be comminuted or the comminutioned material in the crushing chamber.

[0013] According to a preferred embodiment of the invention, the carrier can be adjusted between the detection position and the park position by means of an actuator. This allows for automated adjustment of the detection device. Preferably, the actuator is held, at least in the park position, on the outside of the crushing chamber. Thus, the actuator is also protected during crushing operations, positioned on the outside of the crushing chamber boundary.

[0014] According to a preferred embodiment of the invention, the carrier may have or support the cover, and preferably, when the detection device is moved from the detection to the park position, the cover is moved into the position in which it at least partially closes the inspection opening. This allows the adjustment kinematics for moving the carrier and the cover to be advantageously combined mechanically.

[0015] According to one variant of the invention, a simple construction results when the carrier has a plate-shaped support body which has an outer side and a closing side opposite the outer side, wherein in the park position of the detection device the closing side faces the crushing chamber and the outer side faces away from the crushing chamber, and in the detection position the closing side faces away from the crushing chamber and the outer side faces the crushing chamber.

[0016] A simple seal for the inspection opening in the parked position is achieved if the closing side forms a circumferential rim that, in the detection position, faces the edge of the inspection opening and preferably covers it on the outside. In other words, the carrier can have or form the aforementioned cover, of which the circumferential rim is a component.

[0017] A breaking device according to the invention can be configured such that an outer surface of the carrier receives or forms a coupling element, a spacer is connected to the coupling element, and the spacer forms a mounting plane which, in the detection position, forms an angle of less than 60°, preferably less than 50°, with an opening plane formed by the inspection opening, wherein the angle is greater than 5°, preferably greater than 10°. This provides a suitable detection area for the detection device with minimal effort when it is in the detection position.

[0018] One possible embodiment of the invention is such that the carrier is adjustable about a pivot axis of a joint between the detection position and the parking position, and that the joint is arranged outside the crushing chamber in the parking position. Thus, during operation of the crusher, the joint is located in the protected area on the outside of the crushing chamber boundary.

[0019] One possible embodiment of the invention is a holding device comprising a guide element with a longitudinal guide. The pivot axis around which the carrier pivots is adjustable within the longitudinal guide and transversely, preferably perpendicular to the closing side. The carrier is adjustable on the guide element into a reversing range, within which it can be rotated around the pivot axis. Thus, the carrier can be moved into this reversing range along the longitudinal guide, for example, starting from the detection position. The carrier is then pivoted, and the detection device is rotated into the position corresponding to the park position. Subsequently, the carrier can be moved back along the longitudinal guide until it is in its park position. This results in a simple and space-saving design.In order to ensure that sufficient space is available in the folding area for the pivoting movement of the carrier in such a construction, it may be provided that the holding device has at least one spacer which keeps the folding area of ​​the longitudinal guide at a distance from the closing side.

[0020] According to the invention, when the detection device is in the parked position, the cover at least partially closes the inspection opening. The support can incorporate or form the cover, as already explained above. Alternatively, the cover can be formed by a separate component. This component can preferably be designed such that, when the detection device is in its parked position, it can be adjusted, preferably pivoted, to close the inspection opening. For example, the cover can be adjustable, preferably pivotable by means of a hinge, and directly or indirectly coupled to the boundary wall. Furthermore, the cover can be adjustable between a closed and an open position independently of the pivoting movement of the support.It is conceivable that, in a separate design of the support and the cover, both assemblies, namely the support and the cover, are each pivotable about an associated pivot axis. Preferably, the pivot axes are arranged at an angle to each other, preferably at an angle of 90°. More preferably, the pivot axes lie in the same plane. This plane can, for example, be parallel to the outside of the crushing chamber boundary.

[0021] A particularly preferred embodiment of the invention is such that the cover carries a replaceably attached wear-resistant element. During operation of the crushing device, the side of the cover facing the crushing chamber is mechanically subjected to the material being crushed in the crushing chamber. This causes wear on the surface of the wear-resistant element of the cover. Once this wear-resistant element has reached its wear limit, it can then be replaced with a new one.

[0022] The invention will be explained in more detail below with reference to exemplary embodiments illustrated in the drawings. The drawings show: Figure 1 shows a schematic representation and a side view of a material processing plant with a crushing unit; Figure 2 shows a schematic representation of a part of the crushing unit of the material processing plant according to Figure 1 in perspective view from the left, Figure 3 the construction unit according to Figure 2 In perspective view from the right, Figure 4 shows a detection device for the mineral processing plant according to the Figures 1-3 Figures 5 and 6 show the recording device in perspective view according to Figure 4 in two different operating representations, Figure 7 the representation according to Figure 5 in side view and in section, Figure 8 the representation according to Figure 6in side view and in section, Figure 9 another embodiment of a detection device in perspective view and in a flip position, Figure 10 the arrangement according to Figure 9 in a capture position, Figure 11 the arrangement according to the Figure 9 and 10 in a parked position and Figure 12 the representation according to Figure 11 in side view and in section.

[0023] Figure 1 Figure 1 shows a material processing plant 1 in the form of a crushing plant with a material processing unit in the form of a crushing unit 10. The material processing plant 1 is designed as a mobile material processing plant 1 and therefore has chassis 1.5. However, it is also conceivable that the material processing plant 1 is a stationary material processing plant 1.

[0024] The material processing system 1 has a chassis 1.1 which supports the machine components or at least some of the machine components. At its rear end, the chassis 1.1 preferably has a boom 1.2. A material feed area is formed in the region of the boom 1.2.

[0025] The material feed area can include a feed hopper 2 and a material feed device 9.

[0026] The feed hopper 2 can be formed, at least partially, by hopper walls 2.1 extending in the direction of the longitudinal extent of the material processing plant 1 and a rear wall 2.2 extending transversely to the longitudinal extent. The feed hopper 2 leads to the material feeding device 9.

[0027] The material feeding device 9 can, as shown in the present embodiment, have a conveying trough that can be driven by a vibratory drive. Material to be crushed can be fed into the material processing plant 1 via the feed hopper 2, for example by means of a wheel loader, and fed onto the conveying trough.

[0028] As the drawing shows, the material to be shredded preferably enters the area of ​​a screening unit 3 from the conveying trough. This screening unit 3 can also be referred to as a pre-screening arrangement. At least one screen deck 3.1, 3.2 is arranged in the area of ​​the screening unit 3. In the present embodiment, two screen decks 3.1, 3.2 are used. A system configuration without a pre-screening arrangement is also conceivable.

[0029] At the upper screen deck 3.1, a sub-fraction is screened out of the material to be crushed. This sub-fraction already has a sufficient particle size that no longer needs to be crushed in the material processing plant 1. Therefore, this screened sub-fraction can be routed past the crushing unit 10 in a bypass channel 3.5.

[0030] If a second screen deck 3.2 is used in the screening unit 3, a further fine particle fraction can be screened from the sub-fraction that accumulates below screen deck 3.1. This fine particle fraction can be conveyed below screen deck 3.2 to a side discharge conveyor 3.4. From the side discharge conveyor 3.4, the fine particle fraction is discharged and conveyed to a stockpile 7.2 located to the side of the machine.

[0031] How Figure 1As illustrated, the screening unit 3 can be a vibrating screen with a screen drive 3.3. The screen drive 3.3 sets the screen deck 3.1 and / or the screen deck 3.2 into vibratory motion. Due to the inclined arrangement of the screen decks 3.1, 3.2, and in conjunction with the vibratory motion, material is transported on the screen decks 3.1, 3.2 towards the crushing unit 10 or the bypass channel 3.5.

[0032] The material to be crushed, coming from screen deck 3.1, is fed to the crushing unit 10, as shown here. Figure 1 This can be seen.

[0033] The crushing unit 10 can be designed, for example, as an impact crusher, in particular as a rotary impact crusher, a jaw crusher, a cone crusher, or a roller crusher. The crushing unit 10 includes a comminution device 11.

[0034] It's like in Figure 1If a rotary impact crushing unit is used, it has, for example, a crushing device 11 that includes an impact rotor driven by an internal combustion engine 12. Figure 1 The rotation axis 17 of the impact rotor runs horizontally in the direction of the image depth. The impact rotor is housed in a crushing chamber 16.1.

[0035] If a jaw crusher is used, the crushing device 11 has two opposing crushing jaws enclosing a converging crushing chute between them, leading to a crushing gap. At least one of the crushing jaws can be driven, for example by the combustion engine 12, to crush the material being crushed in the converging crushing gap.

[0036] The impact rotor can, for example, be equipped on its outer circumference with crushing tools 11.2, which in this case are designed as impact bars. Opposite the impact rotor, wall elements, preferably in the form of impact wings 20, can be arranged. When the impact rotor rotates, the material to be crushed is thrown outwards by the impact bars. This material then strikes the impact wings 20 and is crushed due to the high kinetic energy. If the material to be crushed has a sufficient particle size to allow the material particles to pass through a crushing gap 15 between the impact wings 20 and the radially outer ends of the impact bars, the crushed material leaves the crushing unit 10 via the crusher outlet 16.

[0037] It is conceivable that in the area of ​​the crusher outlet 16, the crushed material coming from the crushing unit 10 is combined with the material coming from the bypass channel 3.5 and conveyed onto a belt conveyor 1.3. The belt conveyor 1.3 can then be used to remove the material from the working area of ​​the crushing unit 10.

[0038] As the drawings show, the belt conveyor 1.3 can have an endlessly circulating conveyor belt with a loaded side 1.6 and an unloaded side 1.7. The loaded side 1.6 serves to collect and transport the crushed material that falls from the crusher outlet 16 of the crushing unit 10. At the belt ends, the conveyor belt can be deflected between the loaded side 1.6 and the unloaded side 1.7 by means of deflection rollers 1.4. In the area between the deflection rollers 1.4, guides, in particular support rollers, can be provided to change the conveying direction of the conveyor belt, to give the conveyor belt a specific shape, and / or to support the conveyor belt.

[0039] The belt conveyor 1.3 has a belt drive by means of which the belt conveyor 1.3 can be driven. The belt drive can preferably be arranged at the discharge end 1.9 or in the area of ​​the discharge end 1.9 of the belt conveyor 1.3.

[0040] The belt conveyor 1.3 can be connected to a control unit via a control line, for example by means of the belt drive.

[0041] One or more additional belt conveyors 6 and / or a return conveyor 8 may be used, which in principle have the same design as the belt conveyor 1.3. In this respect, reference can be made to the above explanations.

[0042] In the area between the feed end and the discharge end 1.9, a magnet 1.8, in particular an electromagnet, can be arranged above the load section 1.6. The magnet 1.8 can be used to lift iron parts from the broken material and move them out of the conveying area of ​​the belt conveyor 1.3.

[0043] In the transport direction after the belt conveyor 1.3, a secondary screening device 5 can be arranged. The secondary screening device 5 has a screen housing 5.1 in which at least one screen deck 5.2 is housed. Below the screen deck 5.2, a lower housing part 5.3 is formed, which serves as a collection chamber for the material screened out at the screen deck 5.2.

[0044] The lower housing section 5.3 creates a spatial connection to another belt conveyor 6 via an opening. Here, the second belt conveyor 6 forms its feed section 6.1, whereby the screened material in feed section 6.1 is directed onto the load side of the second belt conveyor 6. The second belt conveyor 6 conveys the screened material to its discharge end 6.2. From there, the screened material reaches a stockpile 7.1.

[0045] The material not screened at the screen deck 5.2 of the secondary screen 5 is conveyed from the screen deck 5.2 onto a conveyor belt 5.4. The conveyor belt 5.4 can also be designed as a belt conveyor, so reference can be made to the explanations given above regarding the belt conveyor 1.3. The conveyance direction of the conveyor belt 5.4 is in Figure 1 in the direction of the image depth.

[0046] At its discharge end, the conveyor belt 5.4 transfers the unscreened material, also known as oversize, to a feed area 8.1 of the return conveyor 8. The return conveyor 8, which can be designed as a belt conveyor, conveys the oversize towards the feed hopper 2. At its discharge end 8.2, the return conveyor 8 transfers the oversize back into the material flow, specifically into the material feed area. The oversize can then be fed back to the crushing unit 10 and crushed there to the desired particle size.

[0047] The Figures 2 and 3 The figures show the comminution devices 11 with their comminution tools 11.2. These are interchangeably mounted on the rotor of the comminution device 11. As the figures show, the comminution device 11 is arranged in the crushing chamber 30. The crushing chamber 30 is at least partially closed off from the surroundings by means of a crushing chamber boundary 31.

[0048] In the Figures 2 and 3 Only an exemplary part of a crushing chamber boundary 31 is shown. As these illustrations demonstrate, the crushing chamber boundary 31 can be part of a wall having an inner side 31.2 facing the crushing chamber 30 and an outer side 31.1 facing away from the crushing chamber 30. The crushing chamber boundary 31 has an inspection opening 32. The inspection opening 32 can be formed by a cutout or recess in the crushing chamber boundary 31.

[0049] In the present embodiment, the inspection opening 32 is designed in the form of a rectangular opening, which is bounded by opposing horizontal and opposing vertical edge sections.

[0050] As the illustrations show, a detection device 50 is arranged in the area of ​​the crushing chamber boundary 31. Figure 2 The detection device 50 is shown in a detection position. In this detection position, the detection device 50 is at least partially located in the crushing chamber 30. The detection device 50 can then detect the wear condition of at least one of the crushing tools 11.2 or of any other wear part in the crushing chamber 30.

[0051] In Figure 3The detection device 50 is shown in a parked position. In this parked position, the detection device 50 is moved out of the crushing chamber 30 and held in the area behind the outer surface 31 of the crushing chamber boundary 31.

[0052] Figure 4 shows a design variant of a detection device 50 for the previously described crushing device in an enlarged detail view.

[0053] As illustrated in the diagram, the detection device 50 is held on a support 40. The support 40 is preferably in the form of a plate.

[0054] The carrier 40 has an outer surface 41 and, opposite it, a closing surface 42. The detection device 50 is attached to the outer surface 41. Preferably, the detection device 50 is attached to the closing surface 42 in a replaceable manner by means of a coupling element 43. The coupling element 43 may have a spacer 44 that keeps the detection device 50 at least partially at a distance from the outer surface 41, as shown. Figure 4 illustrated.

[0055] The support 40 is preferably pivotably coupled to the outer edge of the crushing chamber 31 by means of a joint with a pivot axis 45. Thus, the support 40, together with the detection device 50, can be pivoted about the pivot axis 45 between the Figure 4 shown parking position and one in Figure 5 The shown capture position can be swivelled.

[0056] In the parked position, the detection device 50 is arranged outside the crushing chamber 30, as shown in the Figures 4 , 6 and 8 show.

[0057] In the detection position, the carrier 40 is adjusted so that the detection device 50 is held at least partially within the crushing chamber 30, as shown by the Figures 5 and 7 show.

[0058] Thus, the detection device 50 can be adjusted between its park position and the detection position, whereby during this adjustment movement the detection device 50 is moved through the inspection opening 32.

[0059] Preferably, the pivot axis 45 is located in the area of ​​the outer surface 31.1 of the crushing chamber boundary 31. Thus, the pivot axis 45 is held outside the crushing chamber 30. The joint formed by the pivot axis 45 is therefore protected and held outside the crushing chamber 30 in every operating position.

[0060] Preferably, the detection device 50 is accessible from the outside 31.1 of the crushing chamber boundary 31 in the parked position. This allows the detection device 50 to be easily cleaned or replaced in the event of maintenance when in the parked position.

[0061] How Figure 7As illustrated, the support 40, preferably the spacer 44, can form a mounting plane which, in the detection position, forms an angle α of less than 60°, preferably less than 50°, with the opening plane formed by the inspection opening 32, and that the angle α is greater than 5°, preferably greater than 10°. This allows the detection range of the detection device 50 to be directed away from the inside 31.2 of the crushing chamber boundary 31 and into the crushing chamber 30. The angle can be designed to suit the conditions within the crushing chamber 30 in order to enable the best possible detection of the crushing tool 11.2.

[0062] When the carrier 40 with the detection device 50 is in the parking position according to Figure 5Once the inspection opening 32 is open, the carrier 40 releases it. To prevent any material being crushed from entering the area of ​​the outer surface 31.1 of the crushing chamber boundary 31 during the crushing operation of the material processing plant 1, a cover 60 is used. The cover 60 serves to at least partially, preferably completely, close the inspection opening 32 when the detection device 50 is in the parked position.

[0063] It can be like this: Figures 4-8 The illustration shows that the cover 60 forms a separate assembly from the support 40, which can preferably be adjusted independently of the support 40. It is preferably provided that the cover 60 has or forms a wall element having an outer surface 62 and, opposite it, an inner surface 63.

[0064] The cover 60 can preferably be pivotally connected to the crushing chamber boundary 30 by means of a hinge 65, as shown in the drawings. Preferably, the hinge 65 is arranged in the area of ​​the outer surface 31.1 of the crushing chamber boundary 30, so that it is protected outside the crushing chamber 30. The pivot axis of the hinge 65 is at an angle, preferably 90°, to the pivot axis 45 of the support 40.

[0065] If the detection device 50 is in the parked position, the cover 60 can be pivoted by means of the hinge 65 until it at least partially covers the inspection opening 32. This is shown in the Figure 6 and 8 shown. In In other words, the coverage can be 60 between the in Figure 5 shown opening position and the one in Figure 6 The shown locking position can be adjusted.

[0066] InIn the closed position, the wall element 61 rests against the outer edge 31.1 of the crushing chamber boundary 31 around its perimeter to close the inspection opening 32. The inner side 63 then faces the crushing chamber 30.

[0067] A wear protection element 64 is preferably replaceably attached to the inside 63 of the cover 60, as Figure 5 The wear protection element 64 is preferably formed by a component, in particular a plate-shaped component, which has at least the same wear resistance as the inside 31.2 of the crushing chamber boundary 31.

[0068] Evidentiously Figure 8 Preferably, the wear protection element 64 is flush with the inner surface 31.2 in the closed position. Preferably, the cover 60 is inserted into the inspection opening 32 in the closed position. This shows Figure 8 clearly.

[0069] Inthe Figures 9-12 A further embodiment of the invention is shown. As this illustration demonstrates, a holding device 48 is attached to the outside 31.1 of the crushing chamber boundary 31. The holding device 48 has spacers 48.1, each of which carries a guide element 47 with a longitudinal guide 46.

[0070] The two longitudinal guides 46 are arranged on opposite sides, in particular on the opposite vertical edge regions of the inspection opening 32. Two spacers 48.1 are arranged on each side of the inspection opening 32, positioned at an angle to each other and connected to one another facing away from the outer surface 31.1. In the connection area, the spacers 48.1 are connected by means of a connecting piece 48.2, which bridges the inspection opening 32 at a distance in the region of the outer surface 31.1.

[0071] The guide elements 47 of the longitudinal guides 46 are designed as slot-shaped receptacles, with these slots extending perpendicularly or substantially perpendicularly to the outside 31.1 of the crushing chamber boundary 31.

[0072] Similar to the previous embodiment according to the Figures 4-8 A support 40 is used, which can be plate-shaped. The support 40 has a coupling element 43 which, via a spacer 44, carries the detection device 50 on the outer surface 41.1, as already described above. Reference is made to the above explanations.

[0073] The support 40 has a pivot axis 45 on each of its opposite sides. The pivot axes 45 are guided on the guide elements 47 of the longitudinal guides.

[0074] The support 40 forms or carries a cover 60 on its closing side 42. The cover 60 has a wall element 61, which is preferably dimensioned so that it can be inserted into the inspection opening 32. This illustrates Figure 12 .

[0075] In Figure 10 The carrier 40 holds the detection device 50 in the detection position. As described above, the detection device 50 is then held at least partially within the crushing chamber 30. If the detection device is now to be moved from the Figure 10 shown capture position in the Figure 11 To move the carrier 40 to the parking position shown, it is first adjusted linearly along the longitudinal guides 46 perpendicular to the outer side 31.1 of the crushing chamber boundary 31 by means of its pivot axes 45. The adjustment is carried out until a position is reached that is shown in Figure 9This position forms a reversing area. In this reversing area, the carrier 40 can be pivoted about the pivot axes 45, preferably rotated by 180°. In the reversed position, the cover 60 faces the inspection opening. Subsequently, the carrier 40 is pushed back into the longitudinal guides 46 by means of the pivot axes 45 until the cover 60 is inserted into the inspection opening 32 (see Figure 11 ) then the inspection opening 32 is closed by means of the cover 60.

[0076] Figure 12 Figure 1 shows that the cover 60 has or carries a wear protection element 64 on the side facing away from the support 40. The wear protection element 64 is designed as a surface element. When the cover 60 is inserted into the inspection opening 32, the cover 60, preferably the wear protection element 64, is flush with the inside 31.2 of the crushing chamber boundary 31.

[0077] In the preceding explanations, the functioning of the invention was described using the detection of the wear condition of the crushing tool 11.2 as an example. However, the invention is not limited to this; rather, it is possible that the detection device 50 can additionally or alternatively detect the wear condition of another wear part in the crushing chamber.

Claims

1. Crushing device for crushing mineral material or the like, comprising a crushing unit (10) having a crushing chamber (30), wherein a crushing device (11), in particular movable, preferably rotatable or pivotable, is accommodated in the crushing chamber (30), wherein the crushing device (11) carries at least one crushing tool (11.2), in particular a crushing tool, wherein the crushing chamber (30) is bounded by means of at least one crushing chamber boundary (31), wherein the crushing chamber boundary (31) has an inner side (31.2) facing the crushing chamber (30) and an outer side (31.1) facing away from the crushing chamber (30), and wherein the crushing chamber boundary (31) has an inspection opening (32). characterized by thatA detection device (50) held by a carrier (40) for determining the wear condition of at least one wear part arranged in the crushing chamber (30), in particular a crushing or crushing tool (11.2), is provided, the detection device (50) being adjustable through the inspection opening (32) between a park position and a detection position, the detection device (50) being arranged outside the crushing chamber (30) in the park position, and the inspection opening (32) being closed by means of a cover (60) in the park position.

2. Crushing device according to claim 1, characterized by the fact that the carrier (40) has or carries the cover (60), preferably being provided that when the detection device (50) is moved from the detection position to the parking position, the cover (60) is moved into the position in which it at least partially closes the inspection opening (32).

3. Crushing device according to claim 1 or 2, characterized by the fact that the carrier (40) has a plate-shaped support body which has an outer side (41) and a closing side (42) opposite the outer side (41), wherein in the park position the closing side (42) is facing towards the crushing chamber (30) and the outer side (41) is facing away from the crushing chamber (30), and that in the detection position the closing side (42) is facing away from the crushing chamber (30) and the outer side (42) is facing towards the crushing chamber (30).

4. Crushing device according to claim 3, characterized by the fact that the closing side (42) forms a circumferential edge which, in the detection position, is opposite the edge of the inspection opening (32) and preferably covers it on the outside.

5. Crushing device according to one of claims 1 to 4, characterized by the fact thatan outer surface (41) of the carrier (40) receives or forms a coupling element (43), a spacer (44) is connected to the coupling element (43), and the spacer (44) forms a mounting plane which, in the detection position, forms an angle (α) of less than 60°, preferably an angle (α) of less than 50°, with an opening plane formed by the inspection opening (32), and the angle (α) is greater than 5°, preferably greater than 10°.

6. Crushing device according to one of claims 1 to 5, characterized by the fact that the carrier (40) is adjustable around a joint with a pivot axis (45) between the detection position and the parking position, and that the joint is located outside the crushing chamber in the parking position.

7. Crushing device according to one of claims 1 to 6, characterized by the fact that the swivel angle of the carrier (40) between the parking position and the detection position is at least 120°, preferably at least 150°.

8. Crushing device according to one of claims 1 to 7, characterized by the fact that a holding device (48) is provided which has a guide element (47) with a longitudinal guide (46), wherein the pivot axis (45) about which the carrier (40) is pivotable is adjustable in the longitudinal guide (48) and transversely, preferably perpendicularly, to the closing side (42), and that the carrier (40) is adjustable on the guide element (47) into a reversing range in which the carrier (40) can be rotated about the pivot axis (45).

9. Crushing device according to claim 8, characterized by the fact that the holding device (48) has at least one spacer (48.1) which keeps the reversing area of ​​the longitudinal guide (46) at a distance from the closing side (42).

10. Crushing device according to any one of claims 1 to 9, characterized by the fact that a cover (60) is provided which closes the inspection opening (32) when the detection device (50) is in the parked position.

11. Crushing device according to any one of claims 1 to 10, characterized by the fact that the cover (60) is part of an assembly that is adjustable independently of the carrier (40), wherein the cover (60) in a closed position closes the inspection opening (32) when the detection device is in the parked position.

12. Crushing device according to claim 11, characterized by the fact that the cover (60) is adjustable, preferably pivotable by means of a hinge (65), is directly or indirectly coupled to the boundary wall (31), and the cover (60) is adjustable independently of the pivoting movement of the support (40) between the closed position and an open position in which it exposes the inspection opening (32).

13. Crushing device according to one of claims 1 to 12, characterized by the fact that the cover (60) carries a replaceable wear protection element (64).

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