Bearing unit (10, 11, 12, 13) having a radially outer ring (31), a radially inner ring (33), a row of rolling bodies (32) interposed between the radially outer ring (31) and the radially inner ring (33), a casing (40) inside which the rings of the bearing unit are housed, a sealing device (50, 55) and a disc-like element (60) for protecting the sealing device (50, 55), made as one piece, entirely of plastic or composite material, axially external with respect to the sealing device (50, 55), stably anchored in a seat (41) of the casing (40) and having a radial distance (d2) between a radially internal surface (64) of the disc-like element (60) and the radially inner ring (33) ranging between 0.75 mm and 0.95 mm so as to block large-size external contaminants, without making contact with the radially inner ring (33).
Disclosed is a circular profiled anti-rotation washer (100). The anti-rotation washer (100) comprises a step profile (105) locking mechanism on a first surface. The anti- rotation washer (100) comprises a central axial aperture (110) for receiving a threaded shaft. The step profile (105) is a D-shaped profile and allows the washer to engage with an arm (115) in a positive locking mechanism.
F16B 39/24 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par rondelles, rondelles à ressort ou plaques élastiques qui bloquent contre l'objet
F16B 43/00 - Rondelles ou dispositifs équivalents; Autres dispositifs de support pour têtes de boulons ou d'écrous
Disclosed is a bearing housing (14) that is configured in particular as an end- side cover for a nacelle of a fluid-flow power plant, including a cylindrical section (16) that is configured to receive a bearing unit (14) including at least one rolling-element bearing (20), wherein the at least one rolling-element bearing (20) includes an inner ring and an outer ring that are disposed rotatably with respect to each other about a bearing rotational axis (24) and define a rolling space between them in which a plurality of rolling elements are disposed, wherein the bearing housing (14) furthermore includes a section (26) extending angled with respect to the cylindrical section (16), which section (26) is adapted to an angle (a) between the bearing rotational axis (24) and a pressure line (28) of the rolling-element bearing (20).
Method for detecting at least one critical defect in a ceramic rolling element (2), characterized in that it comprises: - capturing (E4) a plurality of two-dimensional digital radiographic images of the rolling element (2); - digitally filtering (E5) each radiographic image; - delineating (E6), on the basis of the filtered image, at least one region liable to comprise the critical defect; - constructing (E6) stereoscopically a virtual model of the rolling element (2) comprising said region; - comparing (E7) the dimensions of the delineated region with a plurality of predetermined threshold values, and, when the dimensions are greater than the threshold values, generating (E8) an alarm signal.
G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
Disclosed is a fastener assembly (100) to avoid accidental loosening due to vibrations. The fastener assembly (100) comprises a circular profiled locking washer (105), and a lock nut (110), wherein the locking washer (105) is detachably attachable to an arm (120). The locking washer (105) comprises a plurality of leaf-shaped grooves (125) on a first surface (130), and a central axial aperture (135) for receiving a threaded shaft (150). The lock nut (110) comprises a plurality of spring loaded balls (155) on a surface facing the first surface of the locking washer (105). During operation, the lock nut (110) is tightened on the threaded shaft (150) by rotating in clockwise direction, and cessation of rotation, latches the plurality of spring loaded balls (155) with the plurality of leaf-shaped grooves (125) to lock the lock nut (110), and hence to withstand counter-rotative torque on the lock nut (110) caused by vibrations.
F16B 39/28 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par organes particuliers portés par l'écrou ou le boulon ou par la forme particulière de ceux-ci
6.
HUB BEARING ASSEMBLY FOR DISCS FOR SOIL CULTIVATION
Hub bearing assembly (1)(1') for the rotatable mounting of a soil cultivating disc (D) on a support shaft (A) of an agricultural machine, the assembly (1)(1') being provided with: - a hub bearing unit (10) which in turn is provided with a flanged outer ring (II) carrying two integral outer raceways (14a, 146) for respective rows of rolling bodies (15a, 15b), a flange (12) fixed to the flanged outer ring (II) for mounting a disc (D), and, for each outer raceway (15a, 15b), an inner ring (16a, 16b) axially adjacent to the other inner ring (16a, 16b), both of which can be engaged by the support shaft (A); and - a sealing device (50) mounted on a side of the hub bearing assembly (10) opposite the side of the flange (12), composed of a first sealing stage (60) and a second sealing stage (70) arranged sequentially along the support shaft (A) and housed in respective seats (21, 22) formed directly in the flanged outer ring (II). [Figure 1]
Disclosed is a rotor shaft unit (1) for a tidal system, including a rotor shaft (2) that is configured to be connected to a main frame (10) of the tidal system, and including at least one bearing unit (6) for supporting the rotor shaft (2) in a housing (4), wherein the housing (4) is configured to be connected to a rotor (8) of the tidal system, wherein the rotor shaft unit (1) includes a sleeve (12) that is disposed around the rotor shaft (2) and connected to the rotor shaft (2) by a friction connection, wherein the sleeve (12) is attached to the main frame (10).
Disclosed is a kingpin unit (1) including a kingpin (2) that includes an inner bore (12), wherein the kingpin unit (1) includes a sensor tube (10) that is configured as a hollow sleeve and is disposed in the inner bore (12) of the kingpin (2), wherein at least one sensor (8) is disposed in the sensor tube (10), which sensor (8) is configured to monitor at least one bearing (6) of the kingpin (2).
A rolling-element bearing unit for a motor vehicle wheel or motorbike rocker arm comprises the following features: - an outer raceway element, - an inner raceway element, - a set of rolling elements disposed between the raceway elements such that the raceway elements are at least pivotable against each other in the manner of a rolling- element bearing, and - a lubricant reservoir, shaped at least as a prong-cage, for the storing and dispensing of a lubricant, with bridge elements extending between the rolling elements and a side ring connecting the bridge elements.
A plug for a hubcap includes a base configured to fit into and obstruct a port of a hubcap. The base at least partially defines a cavity therein. The plug also includes a cap extending radially outward from the base. The cap defines an opening therein, the opening extending at least partially radially, and a passage extending axially between the opening and the cavity. The opening is in fluid communication with the cavity via the passage.
B60B 7/00 - Chapeaux de roue, couronnes ou dispositifs similaires pour orner, protéger ou cacher, entièrement ou en partie, le corps de la roue, la jante, le moyeu ou le flanc du pneumatique
Disclosed is a sealed bearing module (1) of a tidal turbine including a rotor including rotor blades disposed on a rotor hub, and a rotor shaft carrying the rotor for transmitting a drive torque from the rotor hub to a transmission or generator in a nacelle, wherein the nacelle includes a housing (4), and wherein the bearing module (1) includes two bearing rings (6, 8), wherein at least one of the bearing rings (6, 8) is a split bearing ring including a first bearing ring part (6-1) and a second bearing ring part (6-2), wherein one of the bearing rings (8) includes axially extending bores (12) for attaching the bearing ring (8) directly to the nacelle housing (4), wherein the other bearing ring (6) is connected to a rotor shaft (2) and/or to the rotor hub, and wherein the split bearing ring (6) is preloaded by a preload element (26, 60).
Disclosed is a sealed bearing module (1) for a tidal turbine, including a hub (2) and at least one rotor blade, which sealed bearing module (1) includes an inner ring (4) and an outer ring (6) as well as a seal system (10) for sealing the bearing module (1), wherein the outer ring (6) includes axially extending bores (12) for attaching the outer ring (6) directly to the hub (2), and the inner ring (4) includes axially extending bores (14) for attaching the inner ring (4) to the rotor blade.
F16C 33/76 - Dispositifs d'étanchéité pour roulements à billes ou à rouleaux
F16J 15/3252 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p.ex. joints toriques pourvus d’armatures ou de supports avec armatures ou supports rigides
F16J 15/3296 - Agencements pour la surveillance de l’état physique ou du fonctionnement des joints élastiques; Agencements pour le contrôle des joints élastiques, p.ex. de leur géométrie ou rigidité
A seal assembly for sealing a space between a housing and a component against a liquid medium includes a seal element fixedly connectable to the housing, the seal element including a seal lip that is movable at least in a radial direction, the seal lip being disposed at an angle with respect to the radial direction and a support element in abutment with the seal lip. The support element and the seal element are configured such that a pressure exerted on the seal lip by the liquid medium is transmittable in the radial direction to the support element, and the seal assembly also includes a further seal assembly on a side of the support element axially opposite the seal element, the further seal assembly including a first seal having a first seal body and a second seal having a second seal body.
F16J 15/3204 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p.ex. joints toriques avec au moins une lèvre
14.
BEARING MODULE FOR ADJUSTING A ROTOR BLADE ANGLE OF ATTACK IN AN UNDERWATER POWER PLANT
Exemplary embodiments relate to a bearing module (50) for adjusting of an attack angle of a rotor blade (17) in an underwater power plant (100), a manufacturing method for an underwater power plant (100), and an underwater power plant (100). The bearing module (50) comprises at least two bearings (2, 3) for supporting a rotor-blade shaft (1). The at least two bearings (2, 3) are disposed on the rotor-blade shaft (1) at an axial spacing from each other. The bearing module (50) further comprises at least one first attachment means for producing a mechanical connection to a rotor blade hub (14). The bearing module (50) further comprises at least one second attachment means for producing a mechanical connection to the rotor blade (17). The bearing module (50) further comprises at least one third attachment means for producing a mechanical connection to a blade adjustment mechanism (19). The bearing module (50) is combined into an installation unit.
F03B 13/12 - Adaptations des "machines" ou machines motrices pour une utilisation particulière; Combinaisons des "machines" ou machines motrices avec les appareils entraînés ou qu'ils entraînent; Centrales électriques ou ensembles machine-appareil caractérisés par leur utilisation de l'énergie des vagues ou des marées
A bearing assembly is for supporting a pivotable member and includes a laminated bearing having a generally cylindrical body with a centerline and a central bore for receiving at least a portion of the pivotable member. The body is formed of a plurality of alternating, generally tubular elastomeric and metallic laminae nested coaxially about the central axis, each one of the elastomeric and metallic laminae having opposing axial ends. At least one and preferably two thermally conductive members are coupled with a separate one of the two axial ends of one of the metallic laminae and each extends generally axially from the bearing body so as to provide a heat sink.
F16C 27/06 - Paliers ou supports de paliers élastiques ou extensibles pour mouvement de rotation exclusivement par le moyen de parties en caoutchouc ou en un matériau analogue
F16C 33/24 - Coussinets; Bagues; Garnitures antifriction avec différentes aires de surface de glissement constituées de matériaux différents
The invention relates to a sealing device (100) for sealing in a fluid medium (102). The sealing device (100) comprises a first sealing assembly (104) which is arranged on a primary side facing the medium (102), and which seals a fixed component (106) against a rotatable component (108). The sealing device (100) also comprises a second sealing assembly (110) which is arranged on a secondary side facing away from the medium (102), and which seals the fixed component (106) against the rotatable component (108). The sealing device (100) further comprises a sensor (112), which is connected to a volume (114) located between the first sealing assembly (104) and the second sealing assembly (110), and which is designed to measure a change in moisture. In addition, the fixed component (106) has a drill hole between a contact surface to the first sealing assembly (104) and a contact surface to the second sealing assembly (110). Furthermore, the volume (114) is connected to a pressure tank via the drill hole.
An assembly comprises a rotating shaft (10) supported with respect to a stationary housing (16) by at least one active magnetic bearing (12) presenting a mean radial air gap (El) and at least one auxiliary bearing (18) comprising on the one hand a bushing (21) fixed to the housing (16) and on the other hand a sleeve (20) fixed on the rotating shaft (10). The bushing (21) and the sleeve (20) have opposite surfaces (24, 23) defining a clearance (E2) which is less than the mean radial air gap (El). The bushing (21) and the sleeve (20) each exhibit symmetry around a longitudinal axis of the shaft (10) whilst having different profiles in a longitudinal cross-section including the longitudinal axis to optimize the contact pressure distribution when the rotating shaft (10) lands on the auxiliary bearing.
F16C 17/20 - Paliers à contact lisse pour mouvement de rotation exclusivement caractérisés par des particularités sans rapport avec la direction de la charge avec supports ou paliers de secours
F16C 32/04 - Paliers non prévus ailleurs faisant usage de moyens de support magnétiques ou électriques
A sensor bearing assembly for supporting a rotatable shaft includes a bearing having an inner ring disposable about the shaft, an outer ring disposed about the inner ring, and rolling elements between the rings. An annular detection member is coupled with the bearing inner ring and has an outer circumferential surface and a circular cover is configured to enclose the axial end of the shaft when the bearing assembly is mounted on the shaft. The cover includes a rim coupled with the bearing outer ring, a radially-extending end wall spaced axially from the shaft end, and an annular side wall extending axially between the end wall and the rim. A sensor is mounted to the cover side wall, has an inner end spaced radially outwardly from the detection member outer circumferential surface, and is configured to sense angular displacement of the detection member about the shaft central axis.
A hub-bearing assembly serves to rotatably mount a soil-working disc (D) on a supporting axle (A) of an agricultural machine. The assembly comprises a hub-bearing unit (10) and a sealing device (20). The a hub-bearing unit has a radially outer, rotatable outer race (11) from one side of which a flange (12) radially extends for mounting a disc (D). The sealing device (20) is mounted on a side of the hub-bearing unit opposite to the side of the flange (12). The radially outer surface of the assembly has a portion (38) intermediate the flange (12) and the side of the sealing device (20), which is radially recessed so as to serve as a preferential seat for winding wires picked up from the fields during use of the agricultural machine,
brevets
