EP 3831688 B1 20240612 - LUBRICATING STRUCTURE FOR GAUGE-CHANGEABLE WHEELSET AND GAUGE-CHANGEABLE WHEELSET
Title (en)
LUBRICATING STRUCTURE FOR GAUGE-CHANGEABLE WHEELSET AND GAUGE-CHANGEABLE WHEELSET
Title (de)
SCHMIERSTRUKTUR FÜR RADSATZ MIT VERÄNDERLICHER SPURWEITE UND RADSATZ MIT VERÄNDERLICHER SPURWEITE
Title (fr)
STRUCTURE DE LUBRIFICATION POUR ESSIEU MONTÉ À JAUGE VARIABLE ET ESSIEU MONTÉ À JAUGE VARIABLE
Publication
Application
Priority
- CN 201910002745 A 20190102
- CN 2019110241 W 20191010
Abstract (en)
[origin: EP3831688A1] Disclosed are a lubricating structure for gauge-changing wheelset and a gauge-changing wheelset. The lubricating structure for gauge-changing wheelset comprises: wheels (1), an axle (2), and sliding mechanisms; the wheels are slidably provided at both ends of the axle, and the sliding mechanisms are respectively connected to outer sides of the wheels and are located in axle-box bodies at both ends of the axle; and the wheels are unlocked and locked by the sliding mechanisms. A sealing structure (6) is provided between an inner side of the wheel and the axle, a first cavity (7) is formed between the inner side of the wheel, the axle and the sealing structure, a second cavity (8) is formed between the outer side of the wheel and the sliding mechanism, and a third cavity (9) is formed between the sliding mechanism and the axle-box body. The wheel is provided with first oil injection holes (10) leading to a connection between the wheel and the axle, and the axle-box body is provided with second oil injection holes (11) leading to the sliding mechanism. The lubricating structure of the present application may increase the lubrication of a friction surface, and reduce the wear of the key wear-prone parts, thereby extending the overall service life of the gauge-changing wheelset.
IPC 8 full level
B61F 7/00 (2006.01); B61F 17/30 (2006.01)
CPC (source: EP RU)
B61F 7/00 (2013.01 - EP RU); B61F 17/30 (2013.01 - EP RU)
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
DOCDB simple family (publication)
EP 3831688 A1 20210609; EP 3831688 A4 20211117; EP 3831688 B1 20240612; CN 109733435 A 20190510; CN 109733435 B 20200110; JP 2022508785 A 20220119; JP 7229376 B2 20230227; RU 2758162 C1 20211026; WO 2020140527 A1 20200709
DOCDB simple family (application)
EP 19907009 A 20191010; CN 201910002745 A 20190102; CN 2019110241 W 20191010; JP 2021546036 A 20191010; RU 2021107029 A 20191010