The present invention discloses an intelligent lubricant spraying system for a high-speed gear transmission, which comprises an oil tank, an oil pump, a driving gear, a driven gear, and a spray nozzle. One end of the oil pump is communicated with the oil tank through the first oil inlet pipe. The driving gear is rotatably supported above the oil tank. The driven gear is meshed with the driving gear and is rotatably supported above the oil tank. The spray nozzle is communicated with the other end of the oil tank through the second oil inlet pipe. The spray nozzle is supported between the driving gear and the driven gear and is used for spraying a lubricant in the oil tank into a meshing part of the driving gear and the driven gear.

The invention concerns an epicycloidal gear train comprising a central pinion (26), an outer crown (28) and satellite pinions (32) in engagement with the central pinion (26) and the outer crown (28) and each mounted freely rotatable on a satellite carrier (36), the gear train (10) comprising means for lubricating the teeth and axes (34) of the satellite pinions (32), these means including an annular cup (56) integral with the satellite carrier (36) opened radially inward. According to the invention, an annular bailer (64) is arranged radially inside the cup (56) and applied annularly sealingly to it, the annular bailer (64) being fixed in rotation to the central pinion (26).

The present invention relates to a drive for reaching a desired position of a component such as of a rotor blade, a crane tower, a superstructure and the like, having at least two drive elements that are in toothed engagement with one another and of which at least one is drivable from a drive source and the other is connectable to the component, and having a lubricating device for lubricating the drive elements, wherein at least one lubricant passage for the supply of lubricant to a meshing tooth pair is led through one of the drive elements. It is proposed to effect the supply of the lubricant by a distributor that is connected upstream of the lubricant passage integrated in the drive element and to control the connection between a supply passage of the distributor and the at least one lubricant passage integrated in the drive element by a relative movement between the drive element and the distributor.

An electric drive unit and method of assembling the same is disclosed. The electric drive unit includes a rotor having a rotor shaft, and gear shaft, where the rotor shaft is inserted into the gear shaft. The gear shaft is supported by two bearings, while the rotor shaft supported directly at one end by a bearing and at the other by the gear shaft. A wave spring is also disclosed that provides an axial loading to the rotor shaft. Also disclosed is a balancing ring secured to an end of the rotor via a locknut. The balancing ring can be machined in order to balance the rotor. The rotor shaft can be connected to the gear shaft via a spline connection. The rotor shaft can bear against the gear shaft via a pilot journal and pilot bore defined on the rotor shaft and gear shaft respectively.

An epicyclic gearbox includes a sun gear assembly, a planet gear assembly, and a ring gear assembly engaged with a forward planet gear and an aft planet gear of the planet gear assembly. A first axial shroud is also provided positioned forward of the forward planet gear or aft of the aft planet gear along an axial direction. The first axial shroud covers substantially all of a forward side of the forward planet gear or an aft side of the aft planet gear. The planet gear assembly is coupled to a planet gear carrier, the planet gear carrier including a radial shroud including one or more radial shroud surfaces extending along at least a portion of an outer circumference of the forward planet gear and along at least a portion of an outer circumference of the aft planet gear.

A drive unit is disclosed that includes case portions, a gasket interposed between the case portions, shafts, bearings having respective bearing races, and a bearing shim plate. One shaft includes an input oil tube which provides a fluid pathway between the bearing shim plate and a rotor of the drive unit. Interposed between bearings, and the bearing shim plate, are shims. An approach for sizing shims for use with a drive unit is also disclosed, the approach including determining the distance from a mating flange of a case portion, to different bearing races, selecting shims based on the determined distances, and attaching the bearing shim plate to the case portion with shims interposed therebetween.

An electric drive unit and method of assembling the same is disclosed. The electric drive unit includes a rotor having a rotor shaft, and gear shaft, where the rotor shaft is inserted into the gear shaft. The gear shaft is supported by two bearings, while the rotor shaft supported directly at one end by a bearing and at the other by the gear shaft. A wave spring is also disclosed that provides an axial loading to the rotor shaft. Also disclosed is a balancing ring secured to an end of the rotor via a locknut. The balancing ring can be machined in order to balance the rotor. The rotor shaft can be connected to the gear shaft via a spline connection. The rotor shaft can bear against the gear shaft via a pilot journal and pilot bore defined on the rotor shaft and gear shaft respectively.

A gas turbine engine includes a gearbox including a sun gear, annulus gear, plurality of planet gears and a planet gear carrier. Each planet gear is rotatably mounted in the planet gear carrier by a planet gear bearing. A lubrication system is arranged to supply lubricant to the planet gear bearings and at least one of the sun gear, the planet gears and the annulus gears. The planet gear carrier includes an annular extension. The lubrication system includes an annular member arranged around annular extension to define an annular chamber which is sealed at its ends to the planet gear carrier and which contains a reserve of lubricant. The annular member has an inlet to supply lubricant into the annular chamber and the planet carrier has a first passage to supply lubricant to the sun, planet or annulus gear and a second passage to supply lubricant to planet gear bearings.

A driveline comprising an electrical machine, a chain drive, a first planetary gear set, a second planetary gear set, a range selector, a differential, and an axle assembly, wherein the electrical machine is constructed and arranged to selectively transmit power to the differential through the chain drive, the first planetary gear set, the range selector, and the second planetary gear set or to selectively receive power through the chain drive, the first planetary gear set, the range selector, the second planetary gear set, and the differential, and wherein the range selector is configured to selectively shift the driveline into a high range, a low range, and a neutral mode.

A gear box and method of providing oil through the same is provided. The gear box includes a windage tray that includes a tray having a bleed hole therein, and another tray having another second bleed hole therein. Oil is provided through the bleed holes to respective gears situated in the trays. The windage tray may also include a magnet positioned within a magnet slot of the windage tray, for removing debris from the oil. A tube may also be attached to the windage tray, which tube can include a bleed hole therein, for spraying the oil out of the tube and towards a differential, for example. The windage tray and tube can be made from molded plastic, and can be made using the same mold. The gear box housing may further define a drain in an inner side wall to provide oil to a differential bearing, for example.