Global Patent Index - EP 2270333 A8

EP 2270333 A8 20110309 - Planetary gear transmisssion unit with planet shaft locking mechanism

Title (en)

Planetary gear transmisssion unit with planet shaft locking mechanism

Title (de)

Planetenradgetriebeeinheit mit Verriegelungsmechanismus für die Planetenwelle

Title (fr)

Unité de transmission d'engrenage planétaire avec mécanisme de verrouillage d'arbre planétaire

Publication

EP 2270333 A8 20110309 (EN)

Application

EP 09008477 A 20090629

Priority

EP 09008477 A 20090629

Abstract (en)

[origin: EP2270333A1] The present invention provides a planetary gear transmission unit (20) comprising a planet carrier (14) which supports and locates circumferential spaced pairs of planet gears (12), and at least one planet shaft (13). The planetary gear transmission unit (20) furthermore comprises a planet shaft locking mechanism (18) between the at least one planet shaft (13) and the planet carrier (14) for preventing the at least one planet shaft (13) from rotating around its own axis. An advantage of a planetary gear transmission unit (20) according to embodiments of the invention is that rotation of the planet shafts (13) relative to his bore in the planet carrier (14) is prevented. The invention results in a free of wear contact between planet shaft (13) and planet carrier (14), thereby allowing all degrees of freedom of the planet shaft (13), without disturbing the load distribution between the planet gears (12) of a pair on one planet shaft (13).

IPC 8 full level

F03D 11/02 (2006.01); F16H 1/28 (2006.01); F16H 57/08 (2006.01)

CPC (source: EP US)

F03D 15/00 (2016.05 - EP US); F03D 15/10 (2016.05 - US); F03D 80/70 (2016.05 - US); F16H 57/082 (2013.01 - EP US); F05B 2260/40311 (2013.01 - EP US); F16H 2001/289 (2013.01 - EP US); Y02E 10/72 (2013.01 - EP US)

Designated contracting state (EPC)

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 SE SI SK TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

EP 2270333 A1 20110105; EP 2270333 A8 20110309; AU 2010202565 A1 20110120; CA 2708003 A1 20101229; CN 101936367 A 20110105; US 2010329868 A1 20101230

DOCDB simple family (application)

EP 09008477 A 20090629; AU 2010202565 A 20100618; CA 2708003 A 20100618; CN 201010220607 A 20100629; US 82254210 A 20100624