Abstract: A replaceable tool support is disclosed. The tool support may be configured to be mounted to a base member of a cutting head, which may be mountable to a tool drum used in hard rock mining applications. The tool support may have an annular body having a first end face side. The tool support may also have a plurality of cutting bit carriers disposed spaced apart from each other on the first end face side. In addition, the tool support may have a plurality of cutting bits. Each of the plurality of cutting bits may be rotatably supported by one of the plurality of cutting bit carriers.

Abstract: The present disclosure relates to a cutting bit carrier for hard rock mining applications. Usually, replacing worn cutting bits may take much effort and may be time consuming. The present cutting bit carrier may comprise a first carrier member including a first supporting portion configured to contact a cutting bit shank of a cutting bit for supporting the cutting bit, and a second carrier member including a second supporting portion configured to contact the cutting bit shank of the cutting bit for supporting the cutting bit. The second carrier member may be detachably mountable to the first carrier member.

Abstract: The present disclosure relates to a mobile mining machine which may comprise a movable machine base frame, a rotatable tool drum and including excavating tools. The mobile mining machine may further comprise a cantilever unit including a front support arm part and a base part, and a pivotal device to pivot the cantilever unit. The mobile mining machine may further comprise a tilt device to tilt the cantilever unit and a rotary mechanism to rotate the support arm part and the tool drum. Thus, a mobile mining machine with which tunnels, galleries or shafts may be continuously driven in even in hard rock with a high mining output and low tool wear may be provided.

Abstract: A cutting head for hard rock mining applications is disclosed. The cutting head may have a base member. The base member may have a rotational axis and may include a center bore extending along the rotational axis. The cutting head may also have a drive bushing disposed within the center bore. The drive bushing may be configured to transmit torque from a driving device to the base member. The cutting may further have a plurality of annular tool supports. Each of the plurality of annular tool supports may be concentrically disposed about the rotational axis in a releasable manner. In addition, the cutting head may have a plurality of cutting bit carriers attached to each of the plurality of annular tool supports. Each of the plurality of cutting bit carriers may be configured to rotatably support a cutting bit.

Abstract: A replaceable tool support is disclosed. The tool support may be configured to be mounted to a base member of a cutting head, which may be mountable to a tool drum used in hard rock mining applications. The tool support may have an annular body having a first end face side. The tool support may also have a plurality of cutting bit carriers disposed spaced apart from each other on the first end face side. In addition, the tool support may have a plurality of cutting bits. Each of the plurality of cutting bits may be rotatably supported by one of the plurality of cutting bit carriers.

Abstract: An apparatus for the milling cutting of rock, minerals or other hard materials has a tool drum which is rotatably mounted on a drum carrier about a drum axis and on the peripheral shell surface of which are disposed, in distributed arrangement, a plurality of tool carriers, which carry cutting tools and can be rotatingly driven, where their shaft axes run transversely to the drum axis. A first group of tool carriers and a second group of tool carriers are provided, where the rotational direction of the first group is counter to the rotational direction of the second group, and the shaft axes of the tool carriers of the first group and of the second group are oriented at different setting angles relative to the radial direction of the tool drum.

Abstract: A cutting head for hard rock mining applications is disclosed. The cutting head may have a base member. The base member may have a rotational axis and may include a center bore extending along the rotational axis. The cutting head may also have a drive bushing disposed within the center bore. The drive bushing may be configured to transmit torque from a driving device to the base member. The cutting may further have a plurality of annular tool supports. Each of the plurality of annular tool supports may be concentrically disposed about the rotational axis in a releasable manner. In addition, the cutting head may have a plurality of cutting bit carriers attached to each of the plurality of annular tool supports. Each of the plurality of cutting bit carriers may be configured to rotatably support a cutting bit.

Abstract: The present disclosure relates to a mobile mining machine which may comprise a movable machine base frame, a rotatable tool drum and including excavating tools. The mobile mining machine may further comprise a cantilever unit including a front support arm part and a base part, and a pivotal device to pivot the cantilever unit. The mobile mining machine may further comprise a tilt device to tilt the cantilever unit and a rotary mechanism to rotate the support arm part and the tool drum. Thus, a mobile mining machine with which tunnels, galleries or shafts may be continuously driven in even in hard rock with a high mining output and low tool wear may be provided.

Abstract: A mobile mining machine includes a movable machine base frame having a boom, a swinging device for swinging the boom, and a tilting device for tilting the boom. At least one tool drum is coupled to the boom for rotation about a drum axis and rotatable tool carriers are arranged on a circumference of the tool drum. The boom has a supporting arm, on which the tool drum is mounted, and a separate swinging base, which is swingable about a swing axis in relation to the machine base frame by the swinging device. The supporting arm and the swinging base are connected to one another by a system of guide bars, by way of which a setting angle of the drum axis in relation to the swing axis is adjustable.