A ground breaking machine has a housing and the housing has oppositely disposed end plates which have aligned axial female openings and matching male plate portions positioned in the female openings. The female opening is defined by a side edge having top and oppositely disposed vertical spaced apart side edge portions. Each of the vertical side edge portions terminate in a laterally inwardly extending portion having an upperwardly extending hook portion engageable with a downwardly extending hook portion on the male plate portion for interlocking the female and male hook portions to prevent separation thereof and separation of the male plate portion in the female opening.

The method of assembly and mounting the cutter drum in the housing includes the steps of providing a housing having oppositely disposed end plates including aligned axial openings and matching male plate portions for being positioned in the female openings. The cutter drum has a gear drive mounted in an end of the cutter drum and is provided with a hydraulic motor on one of the male plate portions. The cutter drum is positioned under the housing and the male plate portion having the hydraulic motor is positioned in the female opening in an end plate. The hydraulic motor on the male plate portion is connected to the gear drive in the end of the cutter drum.

A ground breaking machine has a housing and the housing has oppositely disposed end plates which have aligned axial female openings and matching male plate portions positioned in the female openings. The female opening is defined by a side edge having top and oppositely disposed vertical spaced apart side edge portions. Each of the vertical side edge portions terminate in a laterally inwardly extending portion having an upperwardly extending hook portion engageable with a downwardly extending hook portion on the male plate portion for interlocking the female and male hook portions to prevent separation thereof and separation of the male plate portion in the female opening.

The method of assembly and mounting the cutter drum in the housing includes the steps of providing a housing having oppositely disposed end plates including aligned axial openings and matching male plate portions for being positioned in the female openings. The cutter drum has a gear drive mounted in an end of the cutter drum and is provided with a hydraulic motor on one of the male plate portions. The cutter drum is positioned under the housing and the male plate portion having the hydraulic motor is positioned in the female opening in an end plate. The hydraulic motor on the male plate portion is connected to the gear drive in the end of the cutter drum.

The present invention relates to an exchangeable milling drum box for a ground milling machine, particularly for a road milling machine, a recycler, a stabilizer or a surface miner, with a milling drum rotatably mounted in the exchangeable milling drum box and a transmission, via which the milling drum can be driven, the transmission comprising a lubrication device with a lubricant, and the exchangeable milling drum box comprising a cooling and/or heating device for lubricant. Furthermore, the present invention relates to a ground milling machine having such an exchangeable milling drum box. The present invention also relates to a method for cooling and/or heating lubricant of a transmission of a milling drum mounted rotatably in an exchangeable milling drum box of a ground milling machine, the method comprising the steps: Supplying cooling and/or a heating medium from the ground milling machine to the lubricant located in a lubrication device arranged on the exchangeable milling drum box; cooling and/or heating the lubricant through heat transfer between the coolant and/or heating medium and the lubricant; and discharging the cooling and/or heating medium from the exchangeable milling drum box to the ground milling machine.

The present invention relates to an exchangeable milling drum box for a ground milling machine, particularly for a road milling machine, a recycler, a stabilizer or a surface miner, with a milling drum rotatably mounted in the exchangeable milling drum box and a transmission, via which the milling drum can be driven, the transmission comprising a lubrication device with a lubricant, and the exchangeable milling drum box comprising a cooling and/or heating device for lubricant. Furthermore, the present invention relates to a ground milling machine having such an exchangeable milling drum box. The present invention also relates to a method for cooling and/or heating lubricant of a transmission of a milling drum mounted rotatably in an exchangeable milling drum box of a ground milling machine, the method comprising the steps: Supplying cooling and/or a heating medium from the ground milling machine to the lubricant located in a lubrication device arranged on the exchangeable milling drum box; cooling and/or heating the lubricant through heat transfer between the coolant and/or heating medium and the lubricant; and discharging the cooling and/or heating medium from the exchangeable milling drum box to the ground milling machine.

A drum-type shearer loader for the extraction of mineral material in the mining sector, has at least one shearer drum (1), which is mounted rotatably on a pivotable support arm (2) and which is driven by a drive motor (4) arranged at an end of the support arm (2), in the region of a support arm head (3). A compact drive unit for all operating states is provided with the drive motor (4) in the form of a permanent-magnet-excited synchronous machine which, during operation of the shearer drum (1), provides the entire drive power required for rotating the shearer drum (1).

A method for operating a milling machine is disclosed. The method includes receiving an input identifying a leg of a plurality of legs of the milling machine. Further, the method includes determining a height of the leg based on the receiving of the input identifying the leg. The height of the leg being determined based on position data of the leg. The position data being obtained by a first sensor. Further, the method includes determining, by the controller and based on the determining the height of the leg, that a height of other legs of the plurality of legs is to be adjusted. Thereafter, the method includes adjusting the height of the other legs of the plurality of legs to the height of the leg. The height of the other legs being adjusted based on the determined height of the leg.

A cutting device support for a mining machine includes a ranging arm, a bracket positioned adjacent an end of the ranging arm, and a thermally-expandable coupling member positioned between the bracket and the ranging arm. The coupling member exerts a force on the bracket and the ranging arm to secure the bracket to the ranging arm.

The present invention relates to an exchangeable milling drum box for a ground milling machine, particularly for a road milling machine, a recycler, a stabilizer or a surface miner, with a milling drum rotatably mounted in the exchangeable milling drum box and a transmission, via which the milling drum can be driven, the transmission comprising a lubrication device with a lubricant, and the exchangeable milling drum box comprising a cooling and/or heating device for lubricant. Furthermore, the present invention relates to a ground milling machine having such an exchangeable milling drum box. The present invention also relates to a method for cooling and/or heating lubricant of a transmission of a milling drum mounted rotatably in an exchangeable milling drum box of a ground milling machine, the method comprising the steps: Supplying cooling and/or a heating medium from the ground milling machine to the lubricant located in a lubrication device arranged on the exchangeable milling drum box; cooling and/or heating the lubricant through heat transfer between the coolant and/or heating medium and the lubricant; and discharging the cooling and/or heating medium from the exchangeable milling drum box to the ground milling machine.

The present invention relates to an exchangeable milling drum box for a ground milling machine, particularly for a road milling machine, a recycler, a stabilizer or a surface miner, with a milling drum rotatably mounted in the exchangeable milling drum box and a transmission, via which the milling drum can be driven, the transmission comprising a lubrication device with a lubricant, and the exchangeable milling drum box comprising a cooling and/or heating device for lubricant. Furthermore, the present invention relates to a ground milling machine having such an exchangeable milling drum box. The present invention also relates to a method for cooling and/or heating lubricant of a transmission of a milling drum mounted rotatably in an exchangeable milling drum box of a ground milling machine, the method comprising the steps: Supplying cooling and/or a heating medium from the ground milling machine to the lubricant located in a lubrication device arranged on the exchangeable milling drum box; cooling and/or heating the lubricant through heat transfer between the coolant and/or heating medium and the lubricant; and discharging the cooling and/or heating medium from the exchangeable milling drum box to the ground milling machine.

A method for operating a milling machine is disclosed. The method includes receiving an input identifying a leg of a plurality of legs of the milling machine. Further, the method includes determining a height of the leg based on the receiving of the input identifying the leg. The height of the leg being determined based on position data of the leg. The position data being obtained by a first sensor. Further, the method includes determining, by the controller and based on the determining the height of the leg, that a height of other legs of the plurality of legs is to be adjusted. Thereafter, the method includes adjusting the height of the other legs of the plurality of legs to the height of the leg. The height of the other legs being adjusted based on the determined height of the leg.