Abstract: Reduction gear for driving a stirred mill including a reduction gear housing, an input shaft suitable for being connected to a drive motor, a reduction stage arranged in the reduction gear housing, and an output shaft that is suitable for being connected to a stirred mill element and which is suitable for being driven by the reduction stage, the output shaft including a proximal axial side, associated with the reduction stage, and a distal axial side, opposite the proximal axial side and intended to be fastened to the stirred mill element, the reduction gear including an axial stop, which is suitable for axially guiding the output shaft and which is suitable for limiting an axial movement of the output shaft in a direction oriented from the proximal axial side toward the distal axial side.

Abstract: A drive device for a vertical stirred mill, including a main housing, a motor, and an element able to be rotated by the motor around a vertical axis, the rotary element being fastened to a rotary milling tool of the vertical stirred mill, the rotary element including a substantially horizontal rotary plate, and the main housing including an axial stop able to guide the rotary element axially, the rotary plate being arranged bearing on the axial stop, the axial stop thus being able to react to the axial forces exerted on the milling tool during operation of the vertical stirred mill.

Abstract: A link module including a plurality of linking bars adapted to connect two coupling hubs, and grease suitable for lubricating the connection between the plurality of linking bars and the coupling hubs. The link module includes a package that is provided with an envelope surrounding the linking bars and the grease in a manner impervious to the grease, in particular in the absence of coupling hubs and/or a lid.

Abstract: The drive device according to the invention for a vertical roller mill comprises an output gear wheel fixed or capable of being fixed to a rotating grinding table of the vertical roller mill; and a plurality of main drives; a support structure having a ceiling plate; each main drive having a motor and a main gear unit comprising a drive gear capable of meshing with the output gear wheel; said output gear wheel being driven by each of said main drives, wherein said main drives are fitted below the ceiling plate and at least the main gear unit is partially suspended from the ceiling plate, in particular the main drive is partially suspended from the ceiling plate.

Abstract: The driving device according to the invention for a mill comprises a gear ring, suitable for being fastened to a grinding chamber, a first reduction transmission suitable for transmitting a rotation from a first motor to the gear ring, the reduction transmission comprising a case, an output module including an output pinion and an output shaft defining an output axis. The gear ring has helical teeth, the or each output pinion has helical teeth, the or each output module can be inserted in a single piece into the associated case in an insertion direction or removed in a single piece from that associated case in a removal direction. The driving device comprises disconnectable connecting means suitable for rotatably connecting the output shaft to a transmission element and allowing, in the disconnected state, a rotation of the output pinion around the output axis upon removal of the output module outside the case or during insertion of the output module into the case.

Abstract: This grinder is provided with a drive device for a crown gear which comprises a reduction transmission which is provided: with a drive shaft adapted so as to be connected to a motor, with at least one output pinion, said or each output pinion being adapted so as to mesh with the crown gear and to be driven by the drive shaft, and with a casing. The reduction transmission comprises at least two output pinions. Application to devices for driving horizontal grinders.

Abstract: A driving device for a grinder comprises a toothed ring, and at least two driving assemblies for the toothed ring. Each driving assembly comprises an electric motor and a reduction gear unit. The driving device comprises safety means suitable for preventing the starting of all the driving assemblies when at least one driving assembly is unavailable.

Abstract: The invention relates to a device (10) which comprises a stationary member (14), comprising a stabilisation means (20) relative to the bottom of the expanse of water, a member (16) movable relative to the stationary member (14), comprising at least one floating element (40) intended for remaining on the surface (12) of the expanse of water, such that the swell drives the movement of said movable member (16), a guiding means (17, 18) substantially vertical to the movement of the movable member (16) relative to the stationary member (14), and a generation means (32) for electric power, arranged between the stationary member (14) and the movable member (16), intended for converting into electric power the mechanical energy from the vertical motion of the movable member (16) relative to the stationary member (14).

Abstract: A device for immobilizing an element (1) of a kinematic system comprising a member (11) having on its periphery upstanding parts and recessed parts of complementary profile to upstanding and recessed parts of the element to be immobilized and mounted at the end of an arm (14), a unit for moving the member (11) between a passive position disengaged from the element (1) to be immobilized and an position in which the respective upstanding and recessed parts of the element (1) and the member interpenetrate to immobilize the element (1) for placing the upstanding parts opposite the recessed parts of the element (1) and the member (11), respectively, and a device for detecting the position of the arm (14) carrying the member (11). The invention applies to immobilizing a toothed ring of a steelmaking converter ladle.