Abstract

A torque limiter including a first body and a second body extending about a central axis. The first body supports first limiter teeth and the second body supports second limiter teeth. The first and second limiter teeth define an engaged configuration and a release configuration. The torque limiter includes limited-retaining means retaining the first and second limiter teeth in the engaged configuration thereof when the torque is less than a transmission torque limit and yielding when the torque exceeds the transmission torque limit. The limited-retaining means include an inner limited-retaining element having an outer contact surface, and an outer limited-retaining element having an inner contact surface mating with the outer contact surface. The inner and outer limited-retaining elements having a retaining configuration wherein the inner limited-retaining element is clamped into the outer limited-retaining element, and a yielded configuration wherein the inner limited-retaining element is loosened from the outer limited-retaining element.

IPC Classes  ?

• F16D 7/04 - Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
• F16D 7/02 - Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type

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.

IPC Classes  ?

• B02C 17/24 - Driving mechanisms
• F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
• B02C 17/16 - Mills in which a fixed container houses stirring means tumbling the charge

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.

IPC Classes  ?

• F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
• B01F 15/00 - Accessories for mixers
• B02C 17/24 - Driving mechanisms

Abstract

The invention relates to a drive device (10) for a vertical stirred mill (11), said device comprising: a main housing (24); a motor (50); and a rotating element (28) that can be rotated by said motor about a vertical axis (14); the rotating element being fixed to a rotating milling tool (13) of the vertical stirred mill. The rotating element comprises a substantially horizontal rotating plate (34); and the main housing comprises an axial abutment (36) that can axially guide the rotating element, the rotating plate being arranged such that it rests against said axial abutment, the axial abutment thus being able to absorb the axial efforts exerted on the milling tool during the operation of the vertical stirred mill.

IPC Classes  ?

• F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
• B02C 15/00 - Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
• B02C 17/24 - Driving mechanisms

Abstract

The invention relates to a reduction gear for driving a stirred mill, comprising: a reduction gear housing (40); an input shaft (42) designed to be connected to a drive motor; a reduction stage (44) arranged in the reduction gear housing; and an output shaft (46) designed to be connected to a stirred milling element and driven by the reduction stage. The output shaft (46) has a proximal axial side associated with the reduction stage (44), and a distal axial side located opposite the proximal axial side and designed to be fixed to the stirred milling element. The reduction gear comprises an axial abutment (66) suitable for axially guiding the output shaft (46) and for limiting an axial movement of the output shaft (46) in a direction oriented from the proximal axial side towards the distal axial side.

IPC Classes  ?

• F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
• B02C 15/00 - Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
• B02C 17/24 - Driving mechanisms

Abstract

The present invention relates to a drive device (10) for a vertical roller mill, said device comprising: an output ring gear (18) which is rotatable relative to a casing (12); a drive pinion (20) capable of meshing with the output ring gear; and a drive unit (26) capable of rotating the drive pinion. The drive pinion is rotatable relative to a secondary casing (22, 122), said secondary casing being rigidly connected to the main casing, such that the rotational axes (24, 14) of the pinion and of the wheel are positioned in such a way as to be fixed relative to one another. The drive shaft is connected to an output shaft (36) of the drive unit by a coupling device (42) which makes it possible for the axes (24, 40) of the pinion and of the output shaft to be misaligned.

IPC Classes  ?

• B02C 15/00 - Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs

Abstract

The disclosure describes a driving device for a mill including 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 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 includes a disconnectable connecting element suitable for rotatably connecting the output shaft to a transmission element and allowing, in a 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.

IPC Classes  ?

• B02C 17/24 - Driving mechanisms
• F16H 1/20 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
• F16H 1/22 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shaftsToothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with arrangements for dividing torque between two or more intermediate shafts

Abstract

This drive device (10) for a vertical mill with drive rollers comprises - an output gear wheel (111) fixed or capable of being fixed to a rotating grinding table (101) of the vertical roller mill; and - a plurality of main drives (20); - a support structure (102) having a ceiling plate (102/1); each main drive (20) having a motor (110) and a main gear unit (105) comprising a drive gear (109) capable of meshing with the output gear wheel; said output gear wheel being driven by each of the said main drives (20), in which said main drives are fitted under the ceiling plate and at least the main gear unit is partially suspended from the ceiling plate, in particular the main drive (20) is partially suspended from the ceiling plate.

IPC Classes  ?

• B02C 15/00 - Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
• F16H 1/22 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shaftsToothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with arrangements for dividing torque between two or more intermediate shafts

Abstract

with a casing. The reduction transmission comprises at least two output pinions. Application to devices for driving horizontal grinders.

IPC Classes  ?

• B02C 17/24 - Driving mechanisms
• F16H 1/22 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shaftsToothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with arrangements for dividing torque between two or more intermediate shafts

Abstract

A grinder provided with a drive device for a crown gear. This grinder is provided with a drive device for a crown gear which comprises a reduction gear (10) which is provided: - with a drive shaft (18) designed to be connected to a motor, - with at least one output pinion (20), the or each output pinion being designed to mesh with the crown gear and to be driven by the drive shaft, and with a casing (22). The reduction gear comprises at least two output pinions. Application to drive devices for horizontal grinders.

IPC Classes  ?

• F16H 1/22 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shaftsToothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with arrangements for dividing torque between two or more intermediate shafts
• B02C 15/00 - Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs

Abstract

The anchoring device (10) for elements (20) floating on the surface of an expanse of water, such as a sea, is characterized in that it comprises a lower portion (28), including a means (12) for fastening to the bottom (14) of the expanse of water and suitable for carrying out a strong fastening operation such that the anchoring device (10) can no longer be moved relative to said bottom (14), and an upper portion (30), comprising an attachment means (16) for at least two lines (18), said upper portion being attached to the lower portion (28) using a connecting means (32) that is rotatable around a substantially vertical axis of rotation (X).

IPC Classes  ?

• B63B 21/50 - Anchoring arrangements for special vessels, e.g. for floating drilling platforms or dredgers
• B63B 22/04 - Anchoring arrangements

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).

IPC Classes  ?

• F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
• F03B 13/20 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein both members are movable relative to the sea bed or shore