Global Patent Index - EP 2926031 A1

EP 2926031 A1 20151007 - TRANSMISSION UNIT COMPRISING COUPLED PLANETARY GEAR STAGES

Title (en)

TRANSMISSION UNIT COMPRISING COUPLED PLANETARY GEAR STAGES

Title (de)

GETRIEBEEINHEIT MIT GEKOPPELTEN PLANETENSTUFEN

Title (fr)

UNITÉ DE TRANSMISSION DOTÉE D'ÉTAGES PLANÉTAIRES ACCOUPLÉS

Publication

EP 2926031 A1 (DE)

Application

EP 13774435 A

Priority

  • DE 102012221821 A
  • EP 2013071229 W

Abstract (en)

[origin: WO2014082783A1] The invention relates to a transmission unit (1), in particular for a wind turbine, said unit comprising a first planetary gear stage (2) on the input side, a second planetary gear stage (3) and a third planetary gear stage (4) on the output side, each gear stage having a central sun gear (5; 6; 7), a ring gear (14; 15; 16) surrounding the sun gear and planetary gears (11; 12; 13) situated radially between the sun gear and ring gear, said planetary gears being rotatably mounted in a planetary carrier (8; 9; 10). The gear stages are coupled together using means, which can rotate about a rotational axis oriented in the longitudinal direction of the transmission unit (1), in such a way that the input speed of the transmission unit (1) can be increased on the output side. According to the invention, the means for coupling the first and second planetary gear stages (2; 3) comprise an output connection (21) which couples the sun gear (6) or the ring gear (15) of the second planetary gear stage (3) to the planetary carrier (10) or the ring gear (16) of the third planetary gear stage (4) in a rotationally fixed manner.

IPC 8 full level

F16H 1/46 (2006.01); F03D 11/02 (2006.01)

CPC (source: CN EP US)

F03D 15/00 (2016.05 - EP); F03D 15/10 (2016.05 - EP US); F16H 1/46 (2013.01 - CN EP); F05B 2260/40311 (2013.01 - CN EP); Y02E 10/72 (2013.01 - CN EP)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2014082783 A1 20140605; CN 104781584 A 20150715; CN 104781584 B 20180126; DE 102012221821 A1 20140605; EP 2926031 A1 20151007; JP 2015535582 A 20151214

DOCDB simple family (application)

EP 2013071229 W 20131011; CN 201380057244 A 20131011; DE 102012221821 A 20121129; EP 13774435 A 20131011; JP 2015544387 A 20131011