Abstract: A crusher includes first and second crusher bodies defining a crushing gap. A hydraulic cylinder is coupled to one of the crusher bodies to adjust a width of the crushing gap. A pressure relief valve includes a pressure chamber communicated with the hydraulic cylinder. A pressure relief piston is movable between a closed position and an open position. The closed position blocks a fluid connection between the pressure chamber and a pressure equalization area exterior of the pressure relief valve. The pressure relief piston includes at least one piston pressure surface delimiting the pressure chamber in the closed position transversely to the actuating direction of the piston, wherein in the closed position of the pressure relief piston a projection of the at least one piston pressure surface in a projection plane transverse to the actuating direction of the pressure relief piston delimits only a part of the pressure chamber transverse to the actuating direction of the pressure relief piston.

Abstract: A crusher includes first and second crusher bodies defining a crushing gap. A hydraulic cylinder is coupled to one of the crusher bodies to adjust a width of the crushing gap. A pressure relief valve includes a pressure chamber communicated with the hydraulic cylinder. A pressure relief piston is movable between a closed position and an open position. The pressure relief piston includes at least one piston pressure surface delimiting the pressure chamber in the closed position transversely to the actuation direction of the piston, the pressure relief piston including a surface area at an end facing away from the pressure chamber, which surface area delimits the chamber area transverse to the actuating direction of the piston to transfer a closing force to the pressure relief piston in a closing direction of the closed position when pressure is applied in a chamber area.

Abstract: The invention relates to a crusher (10), in particular a rock crusher, having a crusher unit (40), to which a band conveyor unit (60) having an endlessly circulating band conveyor is indirectly or directly assigned, wherein a magnetic separator (70) having a magnet (79) is held in the area of the band conveyor unit (60) above the band conveyor in the direction opposite from the direction of gravity, and wherein an adjustment unit (80) is provided, which can be used to change the height of the magnet (79) above the band conveyor. To enable the reliable operation of such a crusher, it is provided according to the invention that the magnetic separator (70) is suspended from at least two limp ties (81, 82, 84, 85), and that the limp ties (81, 82, 84, 85) can be adjusted by means of at least one actuator unit (90) to change the height of the magnet (79).

Abstract: In a method for carrying out control procedures in a vehicle, a criticality indicator is calculated from various stability indicators. The criticality indicator is fed to at least two different controllers or at least two different sub-controllers of a controller of the vehicle in order for controller parameters to be established.

Abstract: The invention relates to a method for determining the layer height of a feed material, which is supplied to a crushing and/or screening plant of a material processing device, wherein a conveyor device is used to convey the feed material in a conveying direction, wherein a sensor array comprising a plurality of sensors is used to determine the layer height of the feed material. A reliable method that can be performed with little effort and without impairing the operation of the material processing device is achieved by the longitudinal axes of the detection volumes of the sensors extending at least partially in and/or counter to the conveying direction.

Abstract: The invention relates to a method for controlling and/or regulating the feed of material to be processed, in particular rock material, to a crushing and/or screening plant of a material processing device, wherein a conveyor device is used to guide the material to be processed to the crushing and/or screening plant, wherein a characteristic of the material to be processed is determined, and/or wherein a volume flow of the material to be processed is determined, and wherein a conveying speed of the conveyor device is controlled and/or regulated taking into account the characteristic and/or the volume flow of the material to be processed. The invention also relates to a material processing device designed to perform such a method.

Abstract: The invention relates to an overload protection device for the hydraulic system of a mineral material machining plant, in particular for a rotary impact crusher, a jaw crusher or the like, wherein a hydraulic element equipped to store and/or convey a hydraulic fluid is provided, wherein the hydraulic element comprises a connection area (95) having a passage opening for hydraulic fluid of the hydraulic system, wherein the passage opening is covered by a replaceable burst panel (100), wherein a burst panel holder (96) is disposed on the rear face (101) of the burst panel (100) facing away from the connection area (95), and wherein at least one fastening bolt (97) is passed through a bolt mount (96.4) of the burst panel holder (96) and through a drilled hole (103) of the burst panel (100) disposed in alignment therewith and is bolted into a threaded mount of the connection area (95) in such a way that in the assembled state the burst panel (100) is held clamped between a pressure surface (96.

Abstract: A rock processing machine is disclosed for crushing and/or grain size-dependent sorting of pourable rock material. The rock processing machine comprises a rock processing device having a crushing crusher device and a sorting screen, at least one camera system in whose field of view in the operation of the machine a surface of the pourable rock material is located, and a data processing device configured to process image data of the camera system via an artificial neural network. The data processing device is configured to ascertain at least one image area portion in image data recorded and transmitted by the camera system as an image object and to classify the ascertained image object by using the artificial neural network with respect to at least one object property from among a group of object properties comprising: object shapes; object sizes; object types; and/or object materials.

Abstract: The invention relates to a crusher (10), in particular a rock crusher, having a crusher unit (40), to which a band conveyor unit (60) having an endlessly circulating band conveyor is indirectly or directly assigned, wherein a magnetic separator (70) having a magnet (79) is held in the area of the band conveyor unit (60) above the band conveyor in the direction opposite from the direction of gravity, and wherein an adjustment unit (80) is provided, which can be used to change the height of the magnet (79) above the band conveyor. To enable the reliable operation of such a crusher, it is provided according to the invention that the magnetic separator (70) is suspended from at least two limp ties (81, 82, 84, 85), and that the limp ties (81, 82, 84, 85) can be adjusted by means of at least one actuator unit (90) to change the height of the magnet (79).