An arrangement including a planetary stage, a shaft, a connecting element that forms a rotationally fixed connection of a planet carrier of the planetary stage to the shaft and is configured to be flexible with respect to tiltings of the planet carrier relative to the shaft, and a center axis of a ring gear of the planetary stage that is tilted relative to an axis of rotation of the shaft.

A gear speed change device. The gear speed change device comprises a first planetary gear train (100). The first planetary gear train (100) comprises a first ring gear (101), a first planetary carrier (102), first planetary gears (103), a solar idle gear (104), and a planetary idle gear (105). The planetary idle gear (105) and the first planetary gears (103) are all mounted on the first planetary carrier (102); each first planetary gear (103) comprises a pinion (103a) and a large gear (103b) coaxially connected to the pinion (103a); the planetary idle gear (105) and the pinion (103a) are both engaged with the inside of the first ring gear (101) and are both engaged with the outside of the solar idle gear (104); the pinion (103a) can float along the radial direction thereof relative to the first planetary carrier (102), and the maximum radial floating amount of the pinion (103a) is greater than the maximum radial floating amount of the planetary idle gear (105); and the large gears (103b) of at least two first planetary gears (103) are arranged in a staggered manner in the axial direction, and projections thereof on a plane perpendicular to the axial direction overlap with each other. The gear speed change device has a relatively high torque load density, and can give consideration to a small volume, a large transmission speed ratio and a high torque load capability.

A drive train mounting assembly for an industrial transmission, in particular for a rotor with double mounting or momentum mounting of a wind power installation, includes a first housing, a shaft of a drive train, a mounting supported in the first housing and supporting the shaft, a second housing, a transmission component surrounded by the second housing and coupled to the shaft, and a torque support designed to counteract a gravity-induced torque which acts on the shaft by the transmission component. The torque support is fastened to the first housing and includes an adjustable unit.

A gear shifting device includes a first planetary gear train. The first planetary gear train includes a first ring gear, a first planet carrier, a first planet gear, a sun idler, and a planet idler; the planet idler and the first planet gear are both installed on the first planet carrier; the first planet gear includes a pinion and a bull gear coaxially connected to the pinion; the planet idler and the pinion are both meshed with the inside of the first ring gear and are both meshed with the outside of the sun idler; the pinion can float in the radial direction relative to the first planet carrier; an input shaft is further provided; one end of the input shaft is connected to the first ring gear.

A wind turbine planet gear shaft has a shaft body with an outer surface, a segment of the outer surface being a slide bearing surface configured to form a radial slide bearing with an inner opening of a planet gear. The slide bearing surface has a first portion configured as a non-load-bearing zone and a second portion configured as a load-bearing zone and exactly one axially elongate oil pocket in the slide bearing surface, that oil pocket being located in the non-load-bearing zone. An oil supply channel in the shaft body has a first end in communication with the oil pocket, and first and second oil return channels in the slide bearing surface each have a first end at a longitudinal end of the oil pocket and a second end open to ambient air.

A drive arrangement for a wind turbine includes a main shaft, a housing, and a nacelle-mounted support structure. The main shaft of the drive arrangement for the wind turbine is completely supported in the housing. The housing of the drive arrangement for the wind turbine is at least partially resiliently mounted in the support structure.

A pitch tube for a blade pitch control system of a wind turbine includes a tube body extending from a first axial end to a second axial end, for passing supply lines through a transmission. The tube body is designed in multiple parts and made of a non-conductive material only in an axial partial region in order to electrically insulate the first axial end in relation to the second axial end and/or in order to electrically insulate the tube body in relation to the transmission.

A gear shifting device includes a first planetary gear train. The first planetary gear train includes a first ring gear, a first planet carrier, a first planet gear, a sun idler, and a planet idler; the planet idler and the first planet gear are both installed on the first planet carrier; the first planet gear includes a pinion and a bull gear coaxially connected to the pinion; the planet idler and the pinion are both meshed with the inside of the first ring gear and are both meshed with the outside of the sun idler; the pinion can float in the radial direction relative to the first planet carrier; an input shaft is further provided; one end of the input shaft is connected to the first ring gear.

An industrial gear unit designed as a planetary transmission for installation in a wind power installation includes an axle receptacle, an axle including two axial portions via which the axle is mounted in the axle receptacle in an axially fixed manner on both sides of a planet gear of the planetary transmission, and an intermediate element assembly mounted in an axially fixed manner between the axle and the axle receptacle in at least one of the axial portions of the axle and acting between the axle receptacle and the axle. The intermediate element assembly includes a surface portion which faces the axle and/or the axle receptacle and has a structured surface with a laser-structured surface for restraining the intermediate element assembly against displacement in an axial direction.

A pitch tube for a blade pitch control system of a wind turbine includes a tube body extending from a first axial end to a second axial end, for passing supply lines through a transmission. The tube body is designed in multiple parts and made of a non-conductive material only in an axial partial region in order to electrically insulate the first axial end in relation to the second axial end and/or in order to electrically insulate the tube body in relation to the transmission.