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) in which a comminuting device (11) is accommodated, in particular in a displaceable, preferably pivotable or swiveling manner, which comminuting device (11) carries at least one comminuting tool (11.2), in particular a crushing tool, the crushing chamber (30) is delimited by at least one crushing chamber boundary (31) 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) having an inspection opening (32). In order to reliably detect a wear condition of the crushing device, a detection device (50) held by a mounting (40) is provided for determining a wear condition of at least one wear component arranged in the crushing chamber (30), in particular a crushing or crushing tool (11.2), the detection device (50) being moved by means of an actuator (63) through an inspection opening (32) between a parking position and a detection position, the detection device (50) is arranged at least partially inside the crushing chamber (30) in the detection position and outside the crushing chamber (30) in the parking position.

Description

Technical Field

[0001] The present invention relates to a crushing apparatus for crushing mineral materials, etc., the crushing apparatus having a crushing unit having a crushing chamber, wherein a crushing device is housed in the crushing chamber, particularly movably, preferably rotatably or in a rotary manner, wherein the crushing device carries or has at least one crushing tool, particularly a crushing tool, wherein the crushing chamber is defined 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 device according to the invention can be designed to have a rotor as a crushing device, which is rotatably held in a crushing chamber. Therefore, such a crushing device can be an impact crusher, a cone crusher, or a rotary crusher. Alternatively, it can also be a crushing device having a crushing body rotatably disposed in a 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 pulverizing tool. In particular, the crushing tool can be an impact bar, an impact rocker arm, a crusher spindle, a crusher roller, or a crushing jaw.

[0004] In this invention, the crushing tool is not necessarily part of a movable component of a crushing tool (e.g., a rotor or rotary crushing body). Rather, in this invention, the crushing tool can be a component at least partially disposed within the crushing chamber, such as an impact rocker or crushing chamber liner, and particularly also part of the crushing chamber boundary. Background Technology

[0005] The crushing chamber of conventional crushing equipment (especially rock crushers) is extremely difficult to access due to the nature of the system. The safety measures required to access the crushing chamber further complicate accessibility. Therefore, regularly inspecting worn parts within the crushing chamber is very time-consuming. For this reason, sensor-based wear measurement offers significant advantages in terms of operator safety and machine downtime. Beyond pure wear measurement, it allows operators to plan adjustments to the crushing gap and the stacking and installation of worn parts as wear progresses; such a system can detect damage promptly and prevent major machine failure. Furthermore, sensor-based wear measurement offers a significant advantage in measurement accuracy compared to the visual assessment commonly performed by machine operators today.

[0006] A known solution from the prior art involves wearing parts of a crushing tool made of cast material. The measuring system of the detection device is directly built into the cast part. This is only feasible at a high cost. When the wearing part is replaced, the detection device is also replaced, requiring a large number of parts. Methods for determining the layer thickness of the wearing part using ultrasound are also known (see DE 2 357 432B2). Ultrasonic sensors used to determine coating thickness typically use sensor heads directly attached to the wearing part. Otherwise, when the medium changes (e.g., air becomes steel), the sound waves will be reflected or refracted. Such a sensor arrangement is also impractical. Summary of the Invention

[0007] The present invention solves the problem of providing a crushing device of the type mentioned at the beginning, which makes safe and reliable wear detection possible.

[0008] The solution to this problem is to provide a detection device held by a mounting member for determining the wear condition of at least one worn component (particularly a crushing tool), the detection device being movable between a parking position and a detection position by means of an actuator through an inspection opening, wherein the detection device is at least partially arranged inside the crushing chamber in the detection position and outside the crushing chamber in the parking position.

[0009] Therefore, the detection device is no longer assigned to the wear component but can be used separately from it. In the operating position, the detection device is available inside the crushing chamber and can detect the condition of the wear component. Once the condition of the wear component is detected, the actuator moves the detection device through the inspection opening to a protected area behind the outer surface of the crushing chamber boundary. Preferably, the crushing device can be stopped briefly to determine the wear of the wear component, and then the detection device can be moved into the crushing chamber. This allows for efficient and safe detection of the wear component condition. It effectively eliminates the risk of damage to the detection device due to the effects of crushed material and / or dust.

[0010] Specifically, the detection 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 detection 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.

[0011] 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.

[0012] According to a preferred variation of the invention, the actuator may be specified to be held at least in the outer surface region outside the crushing chamber in the parking position. This means that the actuator is also protected on the outer surface of the crushing chamber boundary during crushing operation.

[0013] A conceivable variation of the invention could be such that the mounting element can be moved between a parking position and a detection position by means of an adjusting device including an actuator, and the detection device is at least partially translated or at least partially moved along an arcuate path (partially a circular path) by means of the adjusting device. Depending on the geometry, suitable motion variables can be used. This allows for a space-saving design and allows for precise positioning of the detection device in the detection position within the crushing chamber.

[0014] According to a conceivable variation of the invention, the adjusting device may be specified to include a transmission mechanism driven by an actuator. In this way, the achieved motion ratio allows for an adjustment path, for example, large enough from the detection device, to be realized using a relatively small adjustment stroke of the actuator. In this way, a compact, space-saving design can be achieved.

[0015] If the detection device moves along an arc-shaped path by means of an adjusting device, it is advantageous to specify that the mounting component rotates more than 60° between the parking position and the detection position. In this way, a sufficiently large detection area can be obtained for the detection device in the detection position.

[0016] If the mounting components form a housing, the detection device is housed within this housing, and the housing has a light-transmitting area (particularly an opening) that establishes a straight line of sight between the detection device and at least one worn component (particularly a crushing tool) in the detection position, then the detection device is protected from mechanical impact within the housing. The opening in the housing ensures reliable detection of wear conditions in the detection position. Preferably, in the detection position, the opening in the housing points downwards in the direction of gravity. This at least reduces the risk of rock particles falling onto the detection equipment within the crushing chamber. It may be additionally or alternatively specified that the opening is at least partially covered by a cover through which the measurement signal is permeable.

[0017] A particularly preferred variant of the invention provides a sealing arrangement that at least partially seals the inspection opening in a dustproof manner in the parking and / or inspection positions. This prevents, or at least significantly reduces, the risk of dust from the crushing chamber reaching the outer surface area of ​​the crushing chamber boundary in the respective positions.

[0018] A particularly effective seal can be achieved if the mounting component has a sealing section that is part of a sealing arrangement structure, which faces the edge section of the inspection opening in a sealing manner in the parking position, and / or the mounting component has a limiting element that faces the edge section of the inspection opening in a sealing manner in the detection position.

[0019] If the sealing section is specified to be installed on the mounting part, and the sealing section faces the edge section of the inspection opening in a sealing manner in both the parking position and the inspection position, a particularly simple design can be achieved.

[0020] More preferably, it can be specified that during movement between the inspection position and the parking position, the sealing section of the mounting piece is guided in a sealing manner through the edge section of the inspection opening, so that at least partially dustproof sealing is also ensured during adjustment movement.

[0021] A variation of the invention can be as follows: sealing sections of the mounting member are arranged on opposite ends of the mounting member and extend in the direction of the axis of rotation, the mounting member being rotated about said axis of rotation, the sealing sections preferably having outer contours that all follow the shape of a partial cylinder, and their cylindrical axes extending parallel to the axis of rotation of the mounting member, and / or the edge sections of the inspection opening preferably all have outer contours that all follow the shape of a partial cylinder, their cylindrical axes extending parallel to the axis of rotation of the mounting member. This results in a sealed closure at opposite ends of the beam, which is simple in design. If the cylindrical axis and the axis of rotation of the mounting member are specified to be aligned with each other, the mounting member can move in a circular path, wherein a sealed closure is ensured at opposite ends of the mounting member during this adjustment movement.

[0022] The crushing device according to the invention can be such that the actuator has a linear damper having a cylinder and a piston guided therein, wherein the piston is coupled to a piston rod, and the actuator is directly or indirectly coupled to a detection device in a rotary manner via an adjusting member. This results in a simple design. The linear damper can preferably be designed as a hydraulic cylinder connected to the hydraulic system of the crushing device. Preferably, the adjusting member is used to directly connect the cylinder or piston rod to the mounting component.

[0023] However, it is also conceivable to provide a deflection mechanism, such as a deflection rod or deflection gear, arranged in the area between the actuator and the mounting to ensure proper movement of the mounting.

[0024] For space-saving designs, the retaining device can be specified to be arranged in the area of ​​the outer surface of the crushing chamber boundary, particularly attached to the crushing chamber boundary. The retaining device can be specified to have a spacer that holds the actuator's bearing attachment spaced apart from the outer surface, and the actuator can be specified to be rotatably connected to the retaining device by means of the bearing attachment.

[0025] If the mounting components in the designated parking position are covered by a cover section, wherein the cover section is held at a certain distance from the outer surface of the crushing chamber boundary, the detection device is also protected from external influences, particularly mechanical influences or dust exposure, in the parking position.

[0026] The cover can be opened for maintenance to allow access to the testing device. Preferably, when the cover is open, the fastening device holding the testing device to the mounting can be released, allowing the testing device to be easily removed for maintenance. This means that the testing unit can be removed without disassembling the mounting. Furthermore, when the cover is open, the testing device can also be easily cleaned if needed.

[0027] A variation of the invention may specify that, in the parking position, the detection device is housed in a receiving space, preferably in the receiving space of a mounting component, which is accessible through an opening in the parking position, and a seal is arranged between the cover and the receiving space, preferably at least partially surrounding the opening to at least partially seal the receiving space. This reduces or eliminates the risk of the detection device becoming dirty in the parking position. Preferably, the opening is one through which the detection device also detects the wear condition of worn parts (particularly breaking tools) in the detection position.

[0028] A particularly preferred variant of the invention is that, in the parking position, the inspection opening at the boundary of the crushing chamber is closed by a sealing arrangement, wherein, in its closed position, the sealing arrangement is positioned between the crushing chamber and the detection device. The sealing arrangement prevents material fragments from entering the area of ​​the outer surface of the crushing chamber boundary during crushing operation. In this way, the crushing chamber boundary protects the detection device and seals it off from the crushing chamber.

[0029] Advantageously, in order to protect the detection device, it is specified that the surface of the enclosed arrangement structure facing the crushing chamber has the same or higher wear resistance as the boundary of the crushing chamber.

[0030] Advantageously, in the detection position, a pre-tensioned return spring can also be specified, acting in the direction of the parking position to act directly or indirectly on the detection device, thereby generating or supporting the adjustment movement of the detection device in the direction of the parking position. As a result, when the actuator is deactivated, the detection device (especially the mounting component) is held in or brought into the parking position. This increases operational safety.

[0031] According to a variation of the invention, it is also conceivable that the mounting element has a contoured region that is guided past a scraper during movement between a detection position and a parking position. This removes any impurities that adhere to the mounting element as it moves. Attached Figure Description

[0032] The invention will now be explained in more detail with reference to the exemplary embodiments shown in the accompanying drawings. In the drawings:

[0033] Figure 1 A schematic diagram and side view of a material handling equipment with a crusher unit are shown;

[0034] 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;

[0035] Figure 3 Shown from the right side Figure 2 A three-dimensional diagram of the structural unit;

[0036] Figure 4 Show Figure 1-3 A three-dimensional view of the detection device for mineral processing equipment;

[0037] Figure 5 and Figure 6 Shown in side view Figure 4 Two different operating views of the detection device;

[0038] Figure 7 Show Figure 4-6 A modified side view of the detection device in its parking position;

[0039] Figure 8 Show Figure 7 The detection device is in the detection position;

[0040] Figure 9 A perspective view showing alternative design variations of the detection device;

[0041] Figure 10 Show Figure 9 Side view and sectional view of the detection device; and

[0042] Figure 11 Show Figure 10 The detection device is in the modified operating position, that is, in the parking position. Detailed Implementation

[0043] Figure 1The 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.

[0044] 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.

[0045] The material feeding area may include a feeding hopper 2 and a material feeding device 9.

[0046] 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.

[0047] As shown in this exemplary embodiment, the material feeding device 9 may include a conveyor chute that can be driven by a vibration driver. The feed hopper 2 may be used, for example, to feed the material to be crushed into the material handling equipment 1 and onto the conveyor chute using a wheel loader.

[0048] As shown in the figure, preferably, the material to be crushed enters the area of ​​the screening unit 3 from the conveyor chute. This screening unit 3 can also be referred to as a pre-screening arrangement. At least one screen plate 3.1, 3.2 is disposed in the area of ​​the screening unit 3. In this exemplary embodiment, two screen plates 3.1, 3.2 are used. A system configuration without using a pre-screening arrangement is also conceivable.

[0049] 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.

[0050] If a second screen plate 3.2 is used in screening 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.

[0051] like Figure 1As shown, the screening 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.

[0052] like Figure 1 As shown, the material to be crushed from the screen plate 3.1 is conveyed to the crusher unit 10.

[0053] 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 slewing crushing unit. The crushing unit 10 has a pulverizing device 11.

[0054] If a rotary impact crusher unit is used, such as Figure 1 As shown, for example, it has an impact rotor for 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.

[0055] If a jaw crusher unit is used, the crushing device 11 has two opposing jaws that surround a converging crushing shaft between them, thereby forming a crushing gap. At least one jaw can be driven, for example, by an internal combustion engine 12 to crush the material to be crushed filling the converging crushing gap.

[0056] 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.

[0057] 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.

[0058] 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 support rollers, 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.

[0059] 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.

[0060] The belt conveyor 1.3 can be connected to a control device via a control line, for example, by means of a belt driver.

[0061] 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.

[0062] Magnet 1.8, particularly an electromagnet, may be specifically positioned above the relaxation side 1.6 in the area between the feed end and the discharge end 1.9. 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.

[0063] The re-screening device 5 can be located downstream of the belt conveyor 1.3. The crusher unit 5 has a screening 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.

[0064] An opening in the lower housing portion 5.3 establishes a spatial connection to another belt conveyor 6. Here, the other belt conveyor 6 forms its feed area 6.1, in which 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.

[0065] 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.

[0066] 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.

[0067] 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 in the diagram, the crushing device 11 is arranged 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.

[0068] Figure 2 and Figure 3 Only a portion of the crushing chamber boundary 31 is shown as an example. As shown in this representation, 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.

[0069] 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.

[0070] 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 arranged 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.

[0071] 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.

[0072] Figure 4 The detection device 50 is shown in a magnified detailed view in its parking position. As shown, the detection device 50 is held on the mounting member 40.

[0073] Mounting member 40 may preferably have housing 41 forming receiver 47. Detection device 50 is at least partially housed in receiver 47 in a protected manner.

[0074] The housing 41 may have a sidewall 45 defining the receiver 47. The receiver 47 has an opening 48, which is preferably formed as a hole. The opening 48 may be covered by a cover (e.g., a transparent cover) through which the measurement signal of the detection device 50 can pass. However, preferably, the opening 48 is designed as an uncovered hole.

[0075] For maintenance, the user can access the detection device 50 through the opening 48, preferably in the parking position.

[0076] Mounting member 40 has bearing attachments 42 at opposite ends, preferably in the region of wall 45. The two bearing attachments 42 form a cohesive axis of rotation. Each bearing attachment 42 is rotatably mounted in the bearing mounting member 43 of retainer 44. Mounting member 40 can therefore be... Figure 4 and Figure 5 The parking location shown is the same as Figure 6 Rotate between the detection positions shown.

[0077] Actuator 63 is used to move mounting member 40. Actuator 63 is preferably designed as a driver, particularly as a linear driver, and particularly preferably as a piston-cylinder unit. Actuator 63 has cylinder 65 in which a piston is movably arranged. The piston is connected to piston rod 66, which is guided out of cylinder 65. Piston rod 66 has adjusting member 67. Adjusting member 67 is used to rotate piston rod 66 to housing 41.

[0078] Cylinder 65 has a bearing attachment 64. This bearing attachment 64 is rotatably attached to the retaining device 60. For example... Figures 4 to 6 As shown, preferably, the retaining device 60 may have two spacers 61 arranged spaced apart from each other. Preferably, the two spacers 61 are attached to the outer surface 31.1 of the crushing chamber boundary 31. Opposite to the inner surface 31.1, the spacers 61 have support members 62. The bearing attachment 64 of the cylinder 65 is attached to the support member 62. Preferably, the bearing attachment 64 is rotatably held in the region between the two spacers 61. The bearing attachment and its slewing bearing are spaced apart from the outer surface 31.1 of the crushing chamber boundary 31.

[0079] Preferably, the mounting 40 has a connecting element 46, to which the adjusting member 67 of the actuator 63 is rotatably attached. The connecting element 46 may have a connecting element mounting 46.1. For space-saving design, the connecting element mounting 46.1 is arranged and designed such that at the detection position (see...) Figure 6In this configuration, the piston rod 66 is at least partially received in the connecting mount 46.1. For this purpose, preferably, the connecting mount 46.1 is formed by a groove machined into the mount 40 (see [link to documentation]). Figure 4 ).

[0080] Figure 5 and Figure 6 The housing 41 is also shown to have a limiting element 41.3 at its end opposite to the bearing attachment 42. The limiting element 41.3 forms a contour region 49.2 in the region of the opening 48, which preferably follows at least partially an arc shape in a cross section passing through the axis of rotation formed by the bearing attachment 42.

[0081] Additionally or alternatively, the housing 41 may form a contour region 49.1 opposite the opening 48, which preferably follows at least part of an arc shape in the section passing through the axis of rotation formed by the bearing attachment 42.

[0082] The contour area 49.1 is opposite to the horizontal edge segment of the inspection opening 32, such as Figure 6 As shown in the diagram. Preferably, the profile of the horizontal edge segment of the opening 32 can follow the arcuate profile of the profile segment 49.1. Preferably, the edge segment and the profile region 49.1 have an arcuate shape, as shown in the diagram. Figure 5 and Figure 6 As shown in the diagram, a narrow gap region is formed between the contour region 49.1 and the edge segment to form a dustproof seal at the upper horizontal edge of the mounting member 40.

[0083] The contour region 49.2 is opposite the horizontal edge segment of the inspection opening 32 in the region of the opening 48 of the housing 41. Preferably, the horizontal edge segment of the inspection opening 32 has a contour that follows the arcuate contour of the contour segment 49.2. Preferably, as shown, both the horizontal edge segment and the contour region 49.2 have an arcuate shape. A narrow gap region is formed between the contour region 49.2 and the horizontal edge segment to form a seal at the lower horizontal edge of the mounting member 40.

[0084] For simplicity of design, it is preferable that contour regions 49.1 and 49.2 each form a partially cylindrical surface. Each of these partially cylindrical surfaces has a cylindrical axis aligned with the axis of rotation of the bearing attachment 42. Therefore, the two contour regions 49.1 and 49.2 are precisely guided through a designated edge segment of the inspection opening 32, where a tight seal is maintained.

[0085] At the detection location ( Figure 6 ) neutralized / or in the parking location ( Figure 5In the crushing chamber boundary 31, contour regions 49.1 and / or 49.2 ensure a tight seal between the inner surface 31.2 and the outer surface 31.1 of the crushing chamber boundary 31 through the inspection opening 32. Preferably, when the mounting member 40 moves from the detection position to the parking position, contour regions 49.1 and / or 49.2 are guided through a designated edge section of the inspection opening, such that the tight seal between the inner surface 31.2 and the outer surface 31.2 is maintained at least within a portion of the positioning movement.

[0086] Figure 5 and Figure 6 It is also shown that the mounting part 40 has a groove-shaped recess 41.2 in the region of the axis of rotation. Figure 6 As shown in the detection position, the upper horizontal edge segment of the inspection opening 32 at least partially engages with the recess 41.2 so that an expanded range of rotation angles of the mounting member 40 can be achieved in a simple manner.

[0087] Figure 5 The mounting member 40 may include a closed arrangement structure 41.1. This closed arrangement structure 41.1 is preferably part of the mounting member 40. However, it is also contemplated that the closed arrangement structure 41.1 be designed as a separate component connected to the mounting member 40. It is also contemplated that the closed arrangement structure 41.1 form a separate component not connected to the mounting member 40.

[0088] The closed arrangement structure 41.1 is arranged and designed to at least partially close the inspection opening 31 when the detection device 50 is in the parking position.

[0089] like Figure 5 As shown, preferably, the enclosed arrangement structure 41.1 is flush with the inner surface 31.2 in the parking position.

[0090] Figure 5 It is also shown that the preferably closed arrangement structure 41.1 may be part of the housing 41, which defines the receiver 47.

[0091] During normal crushing operation of material processing equipment 1, detection device 50 is in Figure 3-5In the parking position shown, the closed arrangement 41.1 closes the inspection opening 32. If at least one crushing tool 11.2 is to be inspected, the actuator 63 is actuated. The piston rod 66 then moves relative to the cylinder 65, causing the piston rod 66 to extend. As a result of this positioning movement, the mounting member 40 rotates about the axis of rotation formed by the bearing attachment 42. Preferably, the contour regions 49.1 and / or 49.2 slide past a designated horizontal edge segment of the inspection opening 32. Once the mounting member 40 has moved to the detection position, the detection device 50 can detect the state of the crushing tool 11.2. Preferably, the detection device 50 is designed as an optical detection device. In the detection position, a visual connection, preferably a straight line, is formed between the crushing tool 11.2 and the detection device 50.

[0092] Figure 6 The opening 48 of the housing 41 is preferably facing downwards in the detection position, which prevents objects falling into the crushing chamber from impacting and damaging the detection device 50.

[0093] Preferably, the detection device 50 is covered at the top in the opposite direction to the direction of gravity by a cover. This cover can preferably be formed by a closed arrangement structure 41.1.

[0094] Once the wear condition of the cutting tool 11.2 has been assessed, the actuator 63 can be used to return the mounting piece 40 to its original position. Figure 5 The parking location is shown in the image.

[0095] Figure 5 The opening 48 is preferably accessible from the outer surface 31.1 in the parking position. Preferably, the opening 48 points downward in the direction of gravity in the parking position, so that no dust can fall into the receiver 47 through the opening 48.

[0096] Figure 4 The illustration shows that during movement of the mounting member 40 between the detection position and the parking position, the outer surface of the wall 45 of the mounting member 40 is guided past the vertical edge segment of the inspection opening 32. Preferably, a narrow gap region is formed between the outer surface of the wall 45 and the vertical edge segment of the inspection opening 32, the gap region being small enough to prevent dust from reaching the area behind the outer surface 31.1 from the inner surface 31.2 during the crushing operation. This forms a dustproof seal.

[0097] It is also conceivable that the inspection opening 32 is at least partially circumferentially sealed by means of a sealing element to prevent dust from entering.

[0098] Figure 7 and Figure 8 Show Figure 2-6Further development of monitoring devices. Identical components are labeled with the same reference numerals, which is why the above explanation can be referenced to avoid duplication.

[0099] In addition to the above embodiments, Figure 7 and Figure 8 The monitoring device has a cover 70. When the detection device 50 is in the parking position, the cover 70 is used to at least partially cover the detection device 50, the retaining device 60 and / or the mounting member 40 in the area of ​​the outer surface 31.1.

[0100] As shown in the figure, the cover 70 has a circumferential wall 71, which is attached to the outer surface 31.1 by a fastening section 72. The cover 70 also has a cover section 73, which is held at a distance from the outer surface 31.1 by the wall 71. In this way, the detection device 50 can be positioned between the cover section and the outer surface 31.1 in a parking position. This is... Figure 7 As shown in the image.

[0101] Preferably, the cover 70 has an opening (not shown) through which the opening 48 is accessible and thus the detection device 50 is accessible for maintenance purposes. Preferably, the opening of the cover 70 can be closed by a closure.

[0102] Figure 9 Another design variation of the invention is shown. The same components are labeled with the same reference numerals, which is why the above explanation can be referenced to avoid repetition.

[0103] As shown in the figure, the actuator 63 of the retaining device 60 is connected to the mounting member 40 via a transmission mechanism, which in this case is designed as a simple rotary rod transmission mechanism. Therefore, the transmission mechanism has a rod 68 that can be driven by the actuator 63. The rod 68 is directly or indirectly connected to the bearing attachment 42 of the mounting member 40 to rotate together. This allows the mounting member 40 to rotate about its axis of rotation when the rod 68 rotates.

[0104] Figure 9 The mounting member 40 also has a housing 41 with an opening 48. Therefore, the mounting member 40 also has the same characteristics as according to... Figure 2-8 The mounting member 40 of the aforementioned exemplary embodiment has a substantially the same design. Refer to the above description.

[0105] Mounting member 40 is arranged between the two retainers 44 and is rotatably connected to retainers 44 via bearing attachment 42.

[0106] Figure 10 The detection position of the detection device 50 is shown. Figure 11 The parking location is shown. Figure 10The mounting member 40 is shown to also have contour regions 49.1 and 49.2 at opposite ends. Contour regions 49.1 and 49.2 can be continuously merged into each other, as shown... Figure 10 As shown. In particular, contour regions 49.1 and 49.2 can at least partially form a common arc segment ( Figure 10 ).

[0107] Figure 10 and Figure 11 It is also shown that the closed arrangement structure 41.1 can be formed by a separate component, which is applied to the mounting piece 40 and closes the inspection opening 32 in the parking position.

[0108] Figure 11 A sealing arrangement with sealing element 49.3 is shown acting between mounting member 40 and cover 70. Sealing element 49.3 is arranged in the area of ​​opening 48 of housing 4l. Sealing element 49.3 is arranged and designed to at least partially seal the opening when engaged with cover section 73 of cover 70 in the parking position. This prevents contaminants from entering the area of ​​receiving member 47.

[0109] According to Figure 11, during the movement of housing 41 between the parking position and the detection position, scraper 49.4 can also act on at least one of the contour regions 49.1, 49.2 or on another region of housing 41. Scraper 49.4 is used to remove impurities that adhere to the exterior of housing 41 during this adjustment movement.

[0110] For example, Figure 11 shows that such a scraper 49.4 can be held in the area of ​​the cover 70. The cleaned-out impurities can then preferably be collected in the area of ​​the cover 70 and discharged in an orderly manner through the opening 74 of the housing.

[0111] In the above explanation, the operating mode of the present invention is described with reference to the detection of 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 alternatively detected by the detection device 50.

Claims

1. A crushing device for crushing mineral material and 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 by means of an actuator (63), wherein the detection device (50) is at least partially arranged inside the crushing chamber (30) in the detection position and is arranged outside the crushing chamber (30) in the parked position.

2. The crushing device of claim 1, wherein The actuator (63) is held outside the crushing chamber (30) in the region of the outer face (31.1) at least in the parked position.

3. A crushing device according to claim 1 or 2, characterized in that The mounting (40) is movable between the parked position and the detection position by means of an adjustment device comprising the actuator (63), and the detection device (50) is moved at least partially translationally or at least partially along an arcuate path by means of the adjustment device.

4. The crushing device of claim 3, wherein The mounting (40) is rotated by more than 60° between the parked position and the detection position.

5. A crushing device according to claim 1 or 2, characterized in that The mounting (40) forms a housing (41) in which the detection device (50) is accommodated, and the housing (41) has a light-transmissive region which establishes a direct line of sight between the detection device (50) and the at least one comminution tool in the detection position.

6. A crushing device according to claim 1 or 2, characterized in that A sealing arrangement is provided which at least partially seals the inspection opening (32) in a dust-tight manner in the parked position and / or in the detection position.

7. The crushing device of claim 6, wherein The mounting (40) has a sealing section which is part of the sealing arrangement, which sealing section faces an edge section of the inspection opening (32) in a sealing manner in the parked position, and / or the mounting (40) has a limiting element (41.3) which faces an edge section of the inspection opening (32) in a sealing manner in the detection position.

8. The crushing device of claim 7, wherein The sealing sections of the mounting (40) are arranged on opposite end portions of the mounting (40) and extend in the direction of the axis of rotation about which the mounting (40) is mounted in rotation.

9. A crushing device according to claim 1 or 2, characterized in that The actuator (63) has a linear damper with a cylinder (65) and a piston guided therein, wherein the piston is coupled to a piston rod (66) and the actuator (63) is coupled to the detection device (50) in a rotary manner directly or indirectly by means of a regulating piece (67).

10. A crushing device according to claim 1 or 2, characterized in that A holding device (60) is arranged in the region of an outer surface (31.1) of the crushing chamber boundary (30), which holding device (60) has a spacer (62) which holds a bearing attachment (64) of the actuator (63) spaced apart from the outer surface (31.1) and by means of which the actuator (63) is coupled to the holding device (60) in a rotary manner.

11. A crushing device according to claim 1 or 2, characterized in that In the parked position, the mounting (40) is covered by a cover section (73) of a cover (70), wherein the cover section (73) is held at a distance from the outer surface of the crushing chamber boundary (31).

12. The crushing device of claim 11, wherein, In the parked position, the detection device (50) is accommodated in a mounting space (47), which is accessible through an opening (48), and a seal (49.3) is arranged between the cover (70) and the mounting space (47) to at least partially seal the mounting space (47).

13. The crushing device according to claim 1 or 2, characterized in that In the parked position, the detection device (50) is accessible through a maintenance opening.

14. The crushing device according to claim 1 or 2, characterized in that In the parked position, the inspection opening is closed by means of a closure arrangement (41.1), wherein in its closed position the closure arrangement (41.1) is arranged between the crushing chamber (30) and the detection device (50).

15. A crushing device according to claim 1 or 2, characterized in that In the detection position, a return spring with pretension acting in the direction of the parked position indirectly or directly acts on the detection device to generate or support an adjustment movement in the direction of the parked position.

16. A crushing device according to claim 1 or 2, characterized in that The mounting has a contour region (49.1, 49.2) which is guided past a wiper (49.4) during movement between the detection position and the parked position.

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

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

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

20. The crushing device of claim 1, wherein, The detection device (50) is used to determine a wear state of a comminution or crushing tool (11.2).

21. The crushing device of claim 3, wherein, The detection device (50) is moved at least partially along a circular path by means of the adjustment device.

22. The crushing device of claim 5, wherein, The light-transmissive region is an opening (48).

23. The crushing device of claim 8, wherein, The outer contour of the edge section of the inspection opening (32) follows the shape of a partial cylinder, the cylinder axis of which extends parallel to the rotational axis of the mounting (40).

24. The crushing device of claim 8, wherein, The cylinder axis and the pivot axis of the mounting (40) are aligned with one another.

25. The crushing device of claim 23, wherein, ​ 26. The crushing device of claim 24, wherein, The cylinder axis and the axis of rotation of the mounting (40) are aligned with one another.

27. The crushing device of claim 10, wherein, The holding device (60) is attached to the crushing chamber boundary (31).

28. The crushing device of claim 12, wherein, In the parked position, the detection device (50) is accommodated in a mounting space (47) of the mounting (40).

29. The crushing device of claim 13, wherein, In the parked position, the mounting (40) is covered by a cover section (73) of a cover (70), the cover (70) having a maintenance closure by which a maintenance opening of the cover can be opened or closed.

30. The crushing device of claim 14, wherein, A surface of the closure arrangement (41.1) facing the crushing chamber (30) has the same or a higher wear resistance than the crushing chamber boundary (31).

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