A removable and replaceable crushing shell for use in a top shell of a gyratory or cone crusher. The crushing shell includes a series of concaves that are arranged in a row with straight side walls of the concaves in contact with each other. A wedge concave is positioned within a receiving gap between two adjacent concaves. The wedge concave includes opposite angled side walls that converge in a radially outward direction. One or more connectors hold the wedge concave in place on the frame of the top shell. A wedge is inserted between the angled side walls of the wedge concave and the straight side walls of the concaves to restrict radially outward movement of the wedge concave. The wedge concave can be removed from the crushing shell though a inward force to release hoop stresses in the row of concaves.

Monitoring equipment for monitoring the performance of systems for crushing solid materials are disclosed. The working condition of an elastic liner material is diagnosed and load parameters are analyzed. Integrated into the liner material is a measuring means in the form of a monitoring sensor which works by measuring the axisymmetric bending of the elastic liner material in response to a known force. The data recorded is then sent to an information system for analytical processing. This includes detecting wear and monitoring whether a critical thickness of the liner material has been reached. A housing element (3), a movable sensing element (4) structurally adapted to be continuously thrust in the direction of the wearing surface of the liner material by a resilient pressuring means (5), and a transmitting element (6) are disclosed. The movable sensing element (4) records the magnitude of axisymmetric bending of the liner material and transmits this data to the transmitting element (6), thus providing for a resource-efficient operating regime that makes it possible to use the wearing liner material until critical wear indices are reached.

A crushing device has a crushing chamber. A comminution device is accommodated in the crushing chamber and the comminution device bears at least one comminution tool. The crushing chamber is delimited by at least one crushing chamber boundary having an inner face facing the crushing chamber and an outer facefacing away from the crushing chamber. The crushing chamber boundary has an inspection opening. A detection device may be held by a mounting for determining the state of wear of the communition tool, disposed in the crushing chamber. The detection device can be moved through the inspection opening between a park position and a detection position, wherein the detection device is disposed outside of the crushing chamber in the park position, and in that, in the park position, the inspection opening is closed by means of a cover.

A crushing device for crushing mineral material includes at least one crushing chamber boundary delimiting a crushing chamber, the at least one crushing chamber boundary including an inner face facing the crushing chamber and an outer face facing away from the crushing chamber. The crushing chamber boundary includes an inspection opening. A comminution device is received in the crushing chamber, the comminution device including at least one comminution tool. A sensor is configured to determine a state of wear of at least one wear part in the crushing chamber. A mounting is configured to hold the sensor. An actuator is configured to move the sensor at least partially through the inspection opening between a park position wherein the sensor is at least partially outside of the crushing chamber and a detection position wherein the sensor is at least partially inside of the crushing chamber.

A crushing device includes a crushing chamber. A comminution device is accommodated in the crushing chamber. The comminution device bears at least one comminution tool. The crushing chamber is delimited by at least one crushing chamber boundary. The crushing chamber boundary has an inner face facing the crushing chamber and an outer face facing away from the crushing chamber. The crushing chamber boundary has an inspection opening. A detection device is held by a mounting to be provided for determining the wear condition of the communition tool in the crushing chamber. The detection device may be moved between a park position and a detection position through the inspection opening preferably by means of an actuator, wherein the detection device is arranged in the detection position at least sectionally inside the crushing chamber and is arranged outside of the crushing chamber in the park position.

A measurement system for monitoring a gap adjustment mechanism of a processing device which has oppositely positioned processing elements with a gap between them. The measurement system has a first measuring device to measure information describing a position of that processing element which is moved by at least one actuating unit of the gap adjustment mechanism for adjusting the size of the gap, and at least one second measuring device to measure information describing a position of the at least one actuating unit. The measurement system has a data processing device configurable to determine the condition of the gap adjustment mechanism based on the information describing the position of the processing element and the information describing the position of the at least one actuating unit. Additionally, a method for monitoring a condition of a gap adjustment mechanism of a processing device.

A rock processing machine comprises: a material feeding apparatus having a material buffer for loading starting material to be processed; at least one working apparatus of at least one crushing apparatus and/or at least one screening apparatus; at least one conveyor apparatus for conveying material; a data processor including a data memory; a display connected to the data processor in data-transmitting fashion. The data processor ascertains, from data retrievable from the data memory which are based on at least one data collection basis, wear information regarding the wear of a working tool configuration of the at least one working apparatus, ascertains for the wear information, starting from at least one data collection basis, on which at least a portion of the data used for ascertaining the wear information is based, quality information regarding the wear information, and output the wear information and quality information via the display.

A monitoring system for monitoring wear and usage along a portion of a wear surface for earth moving equipment includes a monitoring assembly to detect a characteristic pertaining to wear or usage in a wear part for excavating equipment and transmit the detected characteristic as information, wherein the monitoring assembly includes a bolt having a standard head, a coupling nut that captures the bolt on one end, a spacer secured to the top of the head, and a sensor probe having an elongate structure that passes through both the bolt and the coupling nut and is captured by the coupling nut on an opposite end. The monitoring assembly being wirelessly able to communicate to a remote device to monitor wear.