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, which has a crushing chamber in which a crushing device is accommodated, in particular in a movable, preferably pivotable or rotary manner, which carries at least one crushing tool, in particular a crushing tool, the crushing chamber is delimited by at least one crushing chamber boundary having an inner surface facing the crushing chamber and an outer surface facing away from the crushing chamber, the crushing chamber boundary having an inspection opening. In order to reliably detect the wear condition of the crushing device, a detection device, which is held by the mounting part, is provided for determining the wear state of at least one wear part, in particular a crushing or crushing tool, arranged in the crushing chamber, the detection device can be moved through the inspection opening between a parking position and a detection position, the detection device is arranged outside the crushing chamber in the parking position, and the inspection opening is closed by a cover in the parking position.

Description

TECHNICAL FIELD

[0001] The invention relates to a crushing device for crushing mineral material and the like, having a crushing unit, which has a crushing chamber, in which a comminution device is accommodated, in particular movably, preferably rotatably or in a gyratory manner, in the crushing chamber, wherein the comminution device carries at least one comminution tool, in particular a crushing tool, wherein the crushing chamber is delimited by at least one crushing chamber boundary, wherein the crushing chamber boundary has an inner surface facing the crushing chamber and an outer surface facing away from the crushing chamber, and wherein the crushing chamber boundary has an inspection opening.

[0002] For example, the crushing devices according to the invention can be designed such that they have a rotor as a comminution device, which is held rotatably in the crushing chamber. Such a crushing device can thus be an impact crusher, a cone crusher or a gyratory crusher. Alternatively, it can also be a comminution device, wherein the comminution device has a crushing body arranged in a gyratory manner in the crushing chamber. Such a crushing device can be, for example, a jaw crusher.

[0003] For example, the crushing tool can be a replaceable tool that is interchangeably connected to the comminution tool. In particular, the crushing tool can be an impact bar, an impact rocker, a crusher spindle, a crusher roll or a crushing jaw.

[0004] In the invention, the crushing tool does not necessarily have to be part of a movable component of the comminution tool, such as a rotor or a gyratory crushing body. Rather, in the invention, the crushing tool can be a component that is at least partially arranged in the crushing chamber, such as an impact rocker or a crushing chamber lining, in particular also part of the crushing chamber boundary. BACKGROUND

[0005] The crushing chamber of a general crushing device, in particular a rock crusher, is very difficult to access due to the nature of the system. The safety measures required to access the crushing chamber make accessibility even more difficult. Regularly checking the wear parts in the crushing chamber is therefore very time-consuming. For this reason, a sensor-based wear measurement offers great advantages in terms of operator safety and machine downtime. In addition to purely wear measurement, which enables the operator to plan the adjustment of the crushing gap and the stocking of wear parts and their installation as wear progresses, such a system can detect damage in good time and prevent major machine damage. Furthermore, a sensor-based wear measurement offers significant advantages in terms of measurement accuracy compared to the visual assessment by the machine operator, which is common today.

[0006] Known from the prior art are solutions in which the wear part of the crushing tool consists of a cast material. The measuring system of the detection device is directly built into the cast part. In the cast part, this can only be realized at great expense. When the wear part is replaced, the detection device is also replaced, which requires a large number of components.

[0007] Methods for determining the layer thickness of a wear part using ultrasound are also known (cf. DE 2357432 B2). Ultrasonic sensors for determining the coating thickness usually use a sensor head that is attached directly to the wear part. Otherwise, when the medium changes (for example, from air to steel), the sound waves will be reflected or refracted. This sensor arrangement is also impractical. SUMMARY

[0008] The invention solves the problem of providing a crushing device of the type mentioned at the outset that makes it possible to detect wear safely and reliably.

[0009] The solution to the problem is that a detection device held by a mount for determining the wear state of at least one wear part, in particular of a crushing tool, is provided, which detection device is movable through an inspection opening between a parking position and a detection position, wherein the detection device is arranged outside the crushing chamber in the parking position and in the parking position the inspection opening is closed by a cover.

[0010] The detection device is no longer assigned to the wear part, but can be used separately therefrom. In the operating position, the detection device is available inside the crushing chamber and can detect the condition of the wear part. As soon as the condition of the wear part has been detected, preferably an actuator moves the detection device through the inspection opening into a protected area behind the outer surface of the crushing chamber boundary. Preferably, the crushing device can be stopped for a short time to determine the wear of the wear part and then the detection device can be moved into the crushing chamber. This allows the condition of the wear part to be detected efficiently and safely. The risk of damage to the detection device due to the influence of crushing material and / or dust is virtually eliminated. In the parking position, the cover closes the inspection opening. In this operating position, the ingress of contaminants, for example dust, into the area on the outer surface of the crushing chamber boundary and the accumulation there are prevented. In this area, the detection device is parked in the parking position. Accumulated impurities can impair the adjustment movement and function of the detection device. Furthermore, it is advantageous if the inspection opening is closed, for example by means of the cover or a part of the mount, even when the detection device is in the detection position.

[0011] Specifically, the inspection device can be an optical measuring device, such as a measuring device with a laser scanner or camera, preferably a stereo camera (especially a 3D camera) or a 2D camera. It is also conceivable that the inspection device has one or more laser distance sensors or ToF cameras. Electromagnetic distance measurement methods or capacitance measurement methods, such as radar sensors or eddy current sensors, are also conceivable.

[0012] According to the invention, the wear component can in particular be a crushing device or part of a crushing device. It is conceivable that the wear component according to the invention is a crushing tool or part of a crushing tool, such as a shredder. It is also conceivable that the wear component according to the invention is a crushing chamber liner or part of a crushing chamber liner. In the invention, the wear component can also be any other component that comes into contact with the material to be crushed or shredded in the crushing chamber.

[0013] According to a preferred variation of the invention, the mounting element can be specified to be movable between a detection position and a parking position via an actuator. In this way, the detection device can be moved automatically. Preferably, the actuator is held outside the crushing chamber, at least in the parking position, in the outer surface region. In this way, the actuator is also protected on the outer surface of the crushing chamber boundary during crushing operation.

[0014] According to a preferred variation of the invention, the mounting element may be specified to have or support a cover, wherein preferably, the cover may be specified to move to a position that at least partially closes the inspection opening when the detection device moves from the detection position to the parking position. In this way, the adjusting movements for moving the mounting element and the cover can be combined in a mechanically advantageous manner.

[0015] According to a variation of the invention, a simple design is achieved as follows: the mounting component is specified to have a plate-shaped support having an outer end and a closed end opposite to the outer end, wherein in the parking position of the detection device, the closed end faces the crushing chamber and the outer end faces away from the crushing chamber, and in the detection position, the closed end faces away from the crushing chamber and the outer end faces the crushing chamber.

[0016] If it is specified that the closed end in the detection position forms a circumferential edge opposite to the edge of the inspection opening and preferably covers the inspection opening on the outside, then the inspection opening can be easily sealed in the parking position. In other words, the mounting piece can therefore have or form the aforementioned cover, with the circumferential edge being a component of that cover.

[0017] The crushing device according to the invention can be such that: the outer end of the mounting member accommodates or forms a connecting element, a spacer is connected to the connecting element, and the spacer forms an attachment plane that, in the detection position, forms an angle of less than 60°, preferably less than 50°, with the opening plane formed by the inspection opening, wherein the angle is greater than 5°, preferably greater than 10°. This makes it easy to provide a suitable detection area for the detection device when it is in the detection position.

[0018] One possible variation of the invention is that the mounting element can move between a detection position and a parking position about the axis of rotation of the joint, with the joint positioned outside the crushing chamber in the parking position. This means that during operation of the crusher, the joint is located in a protected area outside the boundary of the crushing chamber.

[0019] A possible variation of the invention is to provide a retaining device having a guide element with a longitudinal guide, wherein the mounting member, about which it can rotate, can move along the longitudinal guide and transversely, preferably perpendicularly, to the closed end, and the mounting member can move along the guide element to a reversal region in which it can rotate about the rotation axis. This means that the mounting member can move along the longitudinal guide to the reversal region, for example, starting from a detection position. The mounting member then rotates, and the detection device rotates to a position assigned to a parking position. The mounting member can then return along the longitudinal guide until it is in its parking position. This results in a simple construction and a space-saving design. To ensure that there is sufficient space in the reversal region of such a design for the rotational movement of the mounting member, the retaining device can be specified to have at least one spacer such that the reversal region of the longitudinal guide is held at a distance from the closed end.

[0020] According to the invention, when the detection device is in the parking position, the cover at least partially closes the inspection opening. As explained above, the mounting member may have or form the cover. Alternatively, however, the cover may be formed from a structural unit separate from the mounting member. This can preferably be designed such that the cover can be moved, preferably rotated, when the detection device has entered its parking position to close the inspection opening. Thus, for example, the cover can be specified to be movable, preferably rotated by means of hinges directly or indirectly connected to the boundary wall, and the cover can be specified to be movable between a closed position and an open position independently of the rotational movement of the mounting member. It is conceivable that, in the case of separate designs of the mounting member and the cover, the two assemblies, i.e., the mounting member and the cover, can each rotate about a specified axis of rotation. Preferably, the axes of rotation are set at an angle relative to each other, preferably at a 90° angle. The axes of rotation are also preferably in the same plane. For example, this plane may be parallel to the outer surface of the crushing chamber boundary.

[0021] A particularly preferred variation of the invention may be that the cover carries interchangeably attached wear protection elements. During the processing operation of the crushing device, the end of the cover facing the crushing chamber is mechanically impacted by the material being crushed within the crushing chamber. This wears away the surface of the wear protection element of the cover. If the wear protection element has reached its wear limit, it can be replaced with a new wear protection element. Attached Figure Description

[0022] The invention will now be explained in more detail with reference to the exemplary embodiments shown in the accompanying drawings. In the drawings:

[0023] Figure 1 A schematic diagram and side view of a material handling equipment with a crusher unit are shown;

[0024] Figure 2 Shown from the left side Figure 1 A schematic perspective view of a portion of the crusher unit of a material processing equipment;

[0025] Figure 3 Shown from the right side Figure 2 3D diagram of structural unit;

[0026] Figure 4 It shows the use of Figures 1-3 A three-dimensional view of the detection device for mineral processing equipment;

[0027] Figure 5 and Figure 6 The following is illustrated using two different operational representations: Figure 4 A perspective view of the detection device shown;

[0028] Figure 7 It shows Figure 5 Side view and sectional view of the schematic diagram;

[0029] Figure 8 It shows Figure 6 Side view and sectional view of the schematic diagram;

[0030] Figure 9 Another design variation of the detection device is shown in a three-dimensional view and in a reversed position;

[0031] Figure 10 The detection location is shown. Figure 9 The layout structure;

[0032] Figure 11 Showing the parking position Figure 9 and Figure 10 A front view of the layout structure; and

[0033] Figure 12 It shows Figure 11 The side view and sectional view are represented. Detailed Implementation

[0034] Figure 1 The material handling equipment 1 shown is in the form of a crusher, which has a material handling unit in the form of a crusher unit 10. The material handling equipment 1 is designed as a mobile material handling equipment 1, and therefore has a traveling unit 1.5. However, it is also conceivable that the material handling equipment 1 is a stationary material handling equipment 1.

[0035] The material handling equipment 1 has a chassis 1.1 that carries machine components or at least a portion of them. At its rear end, the chassis 1.1 may preferably have a cantilever 1.2. A material feed area is formed in the region of the cantilever 1.2.

[0036] The material feeding area may include a feeding hopper 2 and a material feeding device 9.

[0037] The feed hopper 2 may be formed at least partially by a hopper wall 2.1 extending in the longitudinal direction of the material handling equipment 1 and a rear wall 2.2 extending transversely to the longitudinal direction. The feed hopper 2 leads to the material feeding device 9.

[0038] As shown in this exemplary embodiment, the material feeding device 9 includes a conveyor chute that can be driven by a vibration driver. The feed hopper 2 can be used, for example, with a wheel loader to feed the material to be crushed into the material handling equipment 1 and onto the conveyor chute.

[0039] As shown in the figure, preferably, the material to be crushed enters the area of ​​the screen unit 3 from the conveyor chute. This screen unit 3 can also be referred to as a pre-screening arrangement structure. At least one screen plate 3.1, 3.2 is disposed in the area of ​​the screen unit 3. In this exemplary embodiment, two screen plates 3.1, 3.2 are used. A system configuration without using a pre-screening arrangement structure is also conceivable.

[0040] A portion of the material to be crushed is screened out at the upper sieve plate 3.1. This portion of the material already has a sufficient particle size to no longer require further crushing in the material handling equipment 1. In this respect, the screened portion of the material can be guided through the bypass channel 3.5 through the crusher unit 10.

[0041] If a second screen plate 3.2 is used in screen unit 3, a finer particle fraction can be screened from the fraction accumulated below screen plate 3.1. This fine particle fraction can be guided to a side discharge conveyor 3.4 below screen plate 3.2. The fine particle fraction is then diverted from the side discharge conveyor 3.4 and conveyed to a rock pile 7.2 located on the side of the machine.

[0042] like Figure 1 As shown, the screen unit 3 can be a vibrating screen with a screen drive 3.3. The screen drive 3.3 causes the screen plate 3.1 and / or screen plate 3.2 to vibrate. Due to the inclined arrangement of the screen plates 3.1 and 3.2 and their combination with the vibration motion, the material on the screen plates 3.1 and 3.2 is transported toward the crusher unit 10 or toward the bypass channel 3.5.

[0043] like Figure 1 As shown, the material to be crushed conveyed from the screen plate 3.1 is fed to the crusher unit 10.

[0044] The crushing unit 10 can be, for example, in the form of an impact crushing unit, particularly a rotary impact crushing unit, a jaw crushing unit, a cone crushing unit, or a gyratory crushing unit. The crushing unit 10 has a pulverizing device 11.

[0045] If a rotary impact crusher unit is used, such as Figure 1 As shown, it has an impact rotor, for example, a crushing device 11, which is driven by an internal combustion engine 12. Figure 1 In the image, the rotation axis 17 of the impact rotor is horizontal in the direction of image depth. The impact rotor is housed in the crushing chamber 16.1.

[0046] If a jaw crusher unit is used, the crushing device 11 has two opposing crushing jaws that surround a converging crushing shaft between them, thereby forming a crushing gap. At least one crushing jaw can be driven, for example, by an internal combustion engine 12 to crush the material to be crushed filling the converging crushing gap.

[0047] For example, a crushing tool 11.2 may be fitted around the outer periphery of the impact rotor, which is designed as an impact rod in this case. For example, a wall element may be arranged opposite the impact rotor, preferably in the form of an impact rocker 20. When the impact rotor rotates, the impact rod throws the material to be crushed outwards. In doing so, the material impacts the impact rocker 20 and is crushed due to high kinetic energy. When the material to be crushed has a sufficient particle size to allow the material particles to pass through the crushing gap 15 between the impact rocker 20 and the radially outer end of the impact rod, the crushed material exits the crusher unit 10 through the crusher outlet 16.

[0048] It is conceivable that in the area of ​​crusher outlet 16, the crushed material conveyed from crusher unit 10 is combined with the material conveyed from bypass channel 3.5 and transferred to belt conveyor 1.3. Belt conveyor 1.3 can be used to transport the material out of the working area of ​​crusher unit 10.

[0049] As shown in the figure, the belt conveyor 1.3 may include an annular circulating conveyor belt having a slack side 1.6 and a tension side 1.7. The slack side 1.6 is used to capture and transport crushed material falling from the crusher outlet 16 of the crusher unit 10. At the belt end, deflector rollers 1.4 may be used to deflect the conveyor belt from the slack side 1.6 to the tension side 1.7 and vice versa. Guides, particularly pulleys, may be arranged in the area between the deflector rollers 1.4 to change the conveying direction of the conveyor belt in order to shape and / or support the conveyor belt in a certain way.

[0050] The belt conveyor 1.3 has a belt driver that can be used to drive the belt conveyor 1.3. The belt driver may preferably be located at the discharge end 1.9 of the belt conveyor 1.3 or in the area of ​​the discharge end 1.9.

[0051] The belt conveyor 1.3 can be connected to a control device via a control line, for example, by means of a belt driver.

[0052] One or more additional belt conveyors 6 and / or return conveyors 8 may be used, which in principle have the same design as belt conveyor 1.3. In this regard, reference may be made to the above description.

[0053] In the area between the feed end and the discharge end 1.9, a magnet 1.8, particularly an electromagnet, can be positioned above the slack side 1.6. The magnet 1.8 can be used to lift iron portions from the broken material and remove them from the conveying area of ​​the belt conveyor 1.3.

[0054] The re-screening device 5 can be located downstream of the belt conveyor 1.3. The crusher unit 5 has a screen housing 5.1 in which at least one screen plate 5.2 is installed. A housing base 5.3 is formed below the screen plate 5.2, which serves as a collection space for the material screened at the screen plate 5.2.

[0055] An opening in the lower housing portion 5.3 creates a spatial connection to another belt conveyor 6. Here, the other belt conveyor 6 forms its feed area 6.1, where the screened material in feed area 6.1 is guided onto the slack side of the other belt conveyor 6. The other belt conveyor 6 transports the screened material toward its discharge end 6.2. From there, the screened material is transferred to the rock pile 7.1.

[0056] Material not screened at screen plate 5.2 of the re-screening device 5 is conveyed from screen plate 5.2 to branch belt 5.4. Branch belt 5.4 can also be designed as a belt conveyor, i.e., refer to the explanation given above regarding belt conveyors 1.3. Figure 1 In the image, the transport direction of branch 5.4 extends in the direction of image depth.

[0057] At its discharge end, branch belt 5.4 transfers unscreened material (also known as oversized material) to the feed area 8.1 of return conveyor 8. Return conveyor 8 can be a belt conveyor that transports oversized material toward feed hopper 2. At its discharge end 8.2, return conveyor 8 transfers the oversized material back into the material stream, specifically to the material feed area. Thus, the oversized material can be returned to crusher unit 10 and crushed to the desired particle size.

[0058] Figure 2 and Figure 3 A crushing device 11 with its crushing tools 11.2 is shown. These crushing tools are interchangeably held on the rotor of the crushing device 11. As shown, the crushing device 11 is disposed in a crushing chamber 30. The crushing chamber 30 is at least partially enclosed and isolated from the surrounding environment by a crushing chamber boundary 31.

[0059] Figure 2 and Figure 3 An example of only a portion of the crushing chamber boundary 31 is shown. As these figures illustrate, the crushing chamber boundary 31 may be part of a wall having an inner surface 31.2 facing the crushing chamber 30 and an outer surface 31.1 facing away from the crushing chamber 30. The crushing chamber boundary 31 has an inspection opening 32. The inspection opening 32 may be formed by a hole that is either excluded from or recessed into the crushing chamber boundary 31.

[0060] In this exemplary embodiment, the inspection opening 32 has the form of a rectangular hole, which is defined by opposing horizontal edge segments and opposing vertical edge segments.

[0061] As shown in the figure, the detection device 50 is set in the area of ​​the boundary 31 of the crushing chamber. Figure 2 The detection device 50 is shown in the detection position. In this detection position, the detection device 50 is at least partially disposed in the crushing chamber 30. The detection device 50 can then detect the wear condition of at least one crushing tool 11.2 or any other wear component in the crushing chamber 30.

[0062] Figure 3 The detection device 50 is shown in a parking position. In this parking position, the detection device 50 is removed from the crushing chamber 30 and remains in the area behind the outer surface 31.1 of the crushing chamber boundary 31.

[0063] Figure 4 A design variation of the detection device 50 used in the aforementioned crushing device is shown in an enlarged detailed view.

[0064] As shown in the figure, the detection device 50 is held on the mounting member 40. The mounting member 40 is preferably formed in the shape of a plate.

[0065] Mounting member 40 has an outer end 41 and an opposing closed end 42. Detection device 50 is attached to the region of the outer end 41. Preferably, detection device 50 is interchangeably attached to the closed end 42 via a connecting element 43. The connecting element 43 may have a spacer 44 that at least partially holds the detection device 50 at a distance from the outer end 41, such as... Figure 4 As shown in the image.

[0066] Mounting member 40 is preferably rotatably connected to the outside of the crushing chamber boundary 31 via a joint having a rotation axis 45. Therefore, mounting member 40, combined with detection device 50, can rotate around the rotation axis 45. Figure 4 The parking location shown and Figure 5 Rotate between the detection positions shown.

[0067] In the parking position, the detection device 50 is installed outside the crushing chamber 30, such as... Figure 4 , Figure 6 and Figure 8 As shown in the image.

[0068] In the detection position, the mounting member 40 moves in such a way that the detection device 50 is at least partially held within the crushing chamber 30, such as Figure 5 and Figure 7 As shown in the image.

[0069] Therefore, the detection device 50 can move between its parking position and the detection position, wherein during this adjustment movement, the detection device 50 moves through the inspection opening 32.

[0070] Preferably, the rotation axis 45 extends in the region of the outer surface 31.1 of the crushing chamber boundary 31. Therefore, the rotation axis 45 remains outside the crushing chamber 30. Thus, the joint forming the rotation axis 45 is protected and held outside the crushing chamber 30 in each operating position.

[0071] Preferably, in the parking position, the detection device 50 can be accessed from the outer surface 31.1 of the crushing chamber boundary 31. This means that the detection device 50 can be easily cleaned or replaced in the parking position when maintenance is required.

[0072] like Figure 7As shown, the mounting member 40, preferably the spacer 44, can form an attachment plane that, 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 said angle α can be greater than 5°, preferably greater than 10°. In this way, the detection area of ​​the detection device 50 can point away from the inner surface 31.2 of the crushing chamber boundary 31 and into the crushing chamber 30. This angle can be designed to suit the conditions inside the crushing chamber 30 so as to optimally detect the crushing tool 11.2.

[0073] When the mounting piece 40 with the detection device 50 enters, such as Figure 5 When in the parking position shown, the mounting 40 opens the inspection opening 32. The cover 60 is used to prevent crushed material from entering the area of ​​the outer surface 31.1 of the crushing chamber boundary 31 during crushing operations of the material handling equipment 1. The cover 60 is used to at least partially, and preferably completely, close the inspection opening 32 when the detection device 50 is in the parking position.

[0074] like Figures 4 to 8 As shown, the cover 60 can form a structural unit separate from the mounting member 40, and is preferably movable independently of the mounting member 40. Preferably, the cover 60 may be specified to have or form a wall element having an outer surface 62 and an opposing inner surface 63.

[0075] As shown in the figure, the cover 60 is preferably rotatably connected to the crushing chamber boundary 30 via a hinge 65. Preferably, the hinge 65 is disposed in the region of the outer surface 31.1 of the crushing chamber boundary 30 to be protectively held outside the crushing chamber 30. The axis of rotation of the hinge 65 forms an angle with the axis of rotation 45 of the mounting member 40, preferably an angle of 90°.

[0076] If the detection device 50 is in the parked position, the cover 60 can be rotated via the hinge 65 until it at least partially covers the inspection opening 32. This is in Figure 6 and Figure 8 As shown in the diagram. In other words, cover 60 can be... Figure 5 The opening position shown and Figure 6 Move between the closed positions shown.

[0077] In the closed position, the edge of the wall element 61 rests on the outer surface 31.1 of the crushing chamber boundary 31 to close the inspection opening 32. The inner surface 63 then faces the crushing chamber 30.

[0078] Wear protection element 64 is preferably interchangeably attached to the inner surface 63 of cover 60, such as Figure 5As shown in the figure. The wear protection element 64 is preferably formed of an assembly, particularly a plate-shaped assembly, having at least the same wear resistance as the inner surface 31.2 of the crushing chamber boundary 31.

[0079] Figure 8 The wear protection element 64 is shown to be 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 is in Figure 8 It is clearly shown in the text.

[0080] Figures 9 to 12 Another design variation of the invention is shown. As illustrated, the retaining device 48 is attached to the outer surface 31.1 of the crushing chamber boundary 31. The retaining device 48 has spacers 48.1, each spacer 48.1 carrying a guide element 47 having a longitudinal guide 46.

[0081] Two longitudinal guides 46 are disposed at opposite ends of the inspection opening 32, particularly at opposite vertical edge regions of the inspection opening 32. Two spacers 48.1 are each disposed at each end of the inspection opening 32, forming an angle with each other and interconnecting away from the outer surface 31.1. In the connection region, the spacers 48.1 are connected by a connector 48.2, which bridges the inspection opening 32 at a distance in the region of the outer surface 31.1.

[0082] The guide elements 47 of the longitudinal guide 46 are designed as slotted mounts, wherein these slots extend perpendicularly to or substantially perpendicularly to the outer surface 31.1 of the crushing chamber boundary 31.

[0083] Similar to according to Figures 4 to 8 In the aforementioned exemplary embodiment, a mounting member 40 is used, which may be plate-shaped. The mounting member 40 has a connecting element 43, which carries the detection device 50 on the outer end 41.1 via a spacer 44, as described above. Refer to the above description.

[0084] Mounting member 40 has a rotation axis 45 at opposite ends. The rotation axis 45 is guided along the guide element 47 of the longitudinal guide.

[0085] Mounting member 40 forms or carries cover 60 on its closed end 42. Cover 60 has wall element 61, which is preferably sized so that it can be inserted into inspection opening 32. This is in Figure 12 As shown in the image.

[0086] exist Figure 10 In the process, the mounting member 40 holds the detection device 50 in the detection position. As described above, the detection device 50 is then at least partially held in the crushing chamber 30. If the detection device is now to be removed from... Figure 10The detection position shown is moved to Figure 11 In the parking position shown, the mounting component 40 first moves linearly along the longitudinal guide 46 perpendicular to the outer surface 31.1 of the crushing chamber boundary 31 via its axis of rotation 45. This movement continues until... Figure 9 The position shown in the diagram forms a reversal zone. In this reversal zone, the mounting member 40 can rotate about the axis of rotation 45, preferably by 180°. In this reversal zone, the cover 60 is opposite the inspection opening. Then, the axis of rotation 45 pushes the mounting member 40 rearward along the longitudinal guide 46 until the cover 60 is inserted into the inspection opening 32 (see...). Figure 11 Then cover with 60 to seal the inspection opening 32.

[0087] Figure 12 The cover 60 is shown to have or support a wear protection element 64 at its end opposite to the mounting member 40. The wear protection element 64 is designed as a planar 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 inner surface 31.2 of the crushing chamber boundary 31.

[0088] In the above explanation, the operating mode of the present invention is explained with reference to the detection of the wear condition of the crushing tool 11.2. However, the present invention is not limited thereto. Instead, the wear condition of any other wearing parts in the crushing chamber can be additionally or optionally detected by the detection device 50.

Claims

1. A crushing device for crushing mineral material or the like, having a crushing unit (10) with a crushing chamber (30), wherein a comminution device (11) is accommodated in the crushing chamber (30), wherein the comminution device (11) carries at least one comminution tool (11.2), wherein the crushing chamber (30) is delimited by at least one crushing chamber boundary (31), wherein the crushing chamber boundary (31) has an inner face (31.2) facing the crushing chamber (30) and an outer face (31.1) facing away from the crushing chamber (30), and wherein the crushing chamber boundary (31) has an inspection opening (32); characterized in that a detection device (50) held by a mounting (40) for determining a wear state of at least one wear part arranged in the crushing chamber (30) is provided, which detection device (50) is movable through the inspection opening (32) between a parked position and a detection position, wherein the detection device (50) is arranged outside the crushing chamber (30) in the parked position and the inspection opening (32) is closed by a cover (60) in the parked position.

2. The crushing device of claim 1, wherein The mounting (40) has or carries the cover (60).

3. A crushing device according to claim 1 or 2, characterized in that The mounting (40) has a plate-shaped support body having an outer end (41) and a closed end (42) opposite the outer end (41), wherein in the parked position the closed end (42) faces the crushing chamber (30) and the outer end (41) faces away from the crushing chamber (30), and in the detection position the closed end (42) faces away from the crushing chamber (30) and the outer end (41) faces the crushing chamber (30).

4. The crushing device of claim 3, wherein The closed end (42) forms a circumferential edge which in the detection position is opposite an edge of the inspection opening (32).

5. A crushing device according to claim 1 or 2, characterized in that The outer end (41) of the mounting (40) accommodates or forms a coupling element (43) to which a spacer (44) is connected, and the spacer (44) forms an attachment plane which in the detection position forms an angle (a) with an opening plane formed by the inspection opening (32) which is less than 60° and greater than 5°.

6. A crushing device according to claim 1 or 2, characterized in that The mounting (40) is movable about a swivel axis (45) of a joint between the detection position and the parked position, and in the parked position the joint is arranged outside the crushing chamber.

7. A crushing device according to claim 1 or 2, characterized in that The swivel angle of the mounting (40) between the parked position and the detection position is at least 120°.

8. The crushing device of claim 3, wherein A holding device (48) is provided, which has a guide element (47) having a longitudinal guide (46), wherein a swivel axis (45) about which the mounting (40) swivels is movable along the longitudinal guide (46) and transversely to the closed end (42), and the mounting (40) is movable along the guide element (47) into a reversal region, in which the mounting (40) can be rotated about the swivel axis (45).

9. The crushing device of claim 8, wherein, The holding device (48) has at least one spacer (48.1), which holds the reversal region of the longitudinal guide (46) at a distance from the closed end (42).

10. A crushing device according to claim 1 or 2, characterized in that A cover (60) is provided, which closes the inspection opening (32) when the detection device (50) is in the parked position.

11. A crushing device according to claim 1 or 2, characterized in that The cover (60) is part of an assembly which is movable independently of the mounting (40), wherein the cover (60) closes the inspection opening (32) in a closed position when the detection device is in the parked position.

12. The crushing device of claim 11, wherein, The cover (60) is movably indirectly or directly coupled to the crushing chamber boundary (31), and the cover (60) is movable independently of a swivel movement of the mounting (40) between a closed position and an open position, the cover (60) opening the inspection opening (32) in the open position.

13. The crushing device according to claim 1 or 2, characterized in that The cover (60) carries interchangeably attachable wear protection elements (64).

14. The crushing device of claim 1, wherein, The comminution device (11) is movably accommodated in the crushing chamber (30).

15. The crushing device of claim 1, wherein, The comminution device (11) is rotatably or swivelly accommodated in the crushing chamber (30).

16. The crushing device of claim 1, wherein The comminution tool (11.2) is a crushing tool.

17. The crushing device of claim 1, wherein The wear component is a comminution tool (11.2) or a crushing tool.

18. The crushing device of claim 2, wherein, The cover (60) moves into its position in which it at least partially closes the inspection opening (32) when the detection device (50) moves from the detection position to the parked position.

19. The crushing device of claim 4, wherein, A circumferential edge of the closed end (42) covers the edge of the inspection opening (32) on the outside in the detection position.

20. The crushing device of claim 5, wherein, The angle (a) is less than 50°.

21. The crushing device of claim 5, wherein, The angle (a) is greater than 10°.

22. The crushing device of claim 7, wherein, The swivel angle of the mounting (40) between the parked position and the detection position is at least 150°.

23. The crushing device of claim 8, wherein, The swivel axis (45) is movable perpendicularly to the closed end (42).

24. The crushing device of claim 12, wherein, The cover (60) is swivelly indirectly or directly coupled to the crushing chamber boundary (31) by means of a hinge (65).

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