In a method for determining an area milled by at least one construction machine or at least one mining machine with a milling drum (2) working a predetermined area in several milling trajectories by at least one machine (1), determining the length of the milling trajectories along which a milling operation has taken place by evaluating the continuous machine positions, adding up the previously milled partial areas taking into account the length of the milling trajectory and the installed width of the milling drum (2), wherein the partial area currently milled along the milling trajectory is checked, either continuously or subsequently, for overlapping or multiple overlapping with any previously milled partial areas, and any partial areas which overlap are deducted, as overlapping areas, from the added-up previously milled partial areas, the total added-up partial areas milled minus the total overlapping areas established give the milled area.

In a method for determining an area milled by at least one construction machine or at least one mining machine with a milling drum (2) working a predetermined area in several milling trajectories by at least one machine (1), determining the length of the milling trajectories along which a milling operation has taken place by evaluating the continuous machine positions, adding up the previously milled partial areas taking into account the length of the milling trajectory and the installed width of the milling drum (2), wherein the partial area currently milled along the milling trajectory is checked, either continuously or subsequently, for overlapping or multiple overlapping with any previously milled partial areas, and any partial areas which overlap are deducted, as overlapping areas, from the added-up previously milled partial areas, the total added-up partial areas milled minus the total overlapping areas established give the milled area.

A system and method for collecting operational vibration data for a mining machine. The method includes, receiving at least one motion command. The method further includes, controlling at least one component based on the at least one motion command. The method further includes determining, by an electronic processor, at least one predicate parameter. The method further includes determining, by the electronic processor, whether the predicate parameter is true. The method further includes, while the at least one component is being controlled based on the motion command and the at least one predicate parameter is true, receiving, from a plurality of sensors, each of the plurality of sensors positioned at one of a plurality of measurement points on the at least one component of the mining machine, a plurality of vibration data sets.

A system and method for collecting operational vibration data for a mining machine. The method includes, receiving at least one motion command. The method further includes, controlling at least one component based on the at least one motion command. The method further includes determining, by an electronic processor, at least one predicate parameter. The method further includes determining, by the electronic processor, whether the predicate parameter is true. The method further includes, while the at least one component is being controlled based on the motion command and the at least one predicate parameter is true, receiving, from a plurality of sensors, each of the plurality of sensors positioned at one of a plurality of measurement points on the at least one component of the mining machine, a plurality of vibration data sets.

A flexible material handling apparatus is arranged to be installed on a full face heading machine. The apparatus includes a material handling member and a linkage member coupled together in a head-tail manner by a joint connection, and the linkage member at the other end may be coupled to a frame of a heading machine. The entire apparatus may be retracted to rest on the side of the machine frame and maintained there by a locking means. The material handling member may be swivelled about two separate vertical axes and brought outwardly to an oblique front position, where one or more locking means may be included to secure the material handling member fixed in place relative to the machine frame.

A flexible material handling apparatus is arranged to be installed on a full face heading machine. The apparatus includes a material handling member and a linkage member coupled together in a head-tail manner by a joint connection, and the linkage member at the other end may be coupled to a frame of a heading machine. The entire apparatus may be retracted to rest on the side of the machine frame and maintained there by a locking means. The material handling member may be swivelled about two separate vertical axes and brought outwardly to an oblique front position, where one or more locking means may be included to secure the material handling member fixed in place relative to the machine frame.

A rock excavating device includes a shaft and a cutting element. The shaft includes a first portion and a second portion connected to an end of the first portion. The first portion is rotatable about a first axis. The second portion extends along a second axis that is oblique with respect to the first axis. The cutting element includes a cutting edge. The cutting element is supported on the second portion and rotatable about the second axis. Rotation of the first portion of the shaft about the first axis changes the orientation of the second axis and the cutting element.

An earth working machine (10), for example a road milling machine (10), recycler, stabilizer, or surface miner, having a propelling unit (22) and a machine frame (12) carried by the propelling unit (22), comprises a working apparatus (32) for earth working; an operator's platform (24), having an operating console (26) for controlling at least one functional device (32, 39) of the earth working machine (10), being provided on the machine frame (12). Provision is made according to the present invention that the earth working machine (10) comprises, in the region of the operator's platform (24), a seat mount arrangement (66) that is embodied to be brought into releasable mounting engagement with a counterpart mount arrangement (76) of an operating seat (62, 64).

This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device.

This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device.