LUBRICATING STRUCTURE FOR GAUGE-CHANGEABLE WHEELSET AND GAUGE-CHANGEABLE WHEELSET

Title:

LUBRICATING STRUCTURE FOR GAUGE-CHANGEABLE WHEELSET AND GAUGE-CHANGEABLE WHEELSET

Document Type and Number:

WIPO Patent Application WO/2020/140527

Kind Code:

A1

Abstract:

A lubricating structure for a gauge-changeable wheelset and a gauge-changeable wheelset. The lubricating structure comprises wheels (1), an axle (2), and sliding mechanisms. The wheels are slidably disposed at both ends of the axle, the sliding mechanisms are respectively connected to the outer sides of the wheels, and are located in the axle boxes at both ends of the axle, and the wheels are unlocked and locked by the sliding mechanisms. A sealing structure (6) is provided between the inner side of each wheel and the axle, a first cavity (7) is formed among 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. The wheel is provided with first oil injection holes (10) leading to the joint between the wheel and the axle, and the axle box is provided with second oil injection holes (11) leading to the sliding mechanism. The lubricating structure can increase the lubrication of a friction surface, reduce the wear of key parts easy to wear, and prolong the overall life of the gauge-changeable wheelset.

Inventors:

ZHENG JING (CN)
WANG XU (CN)
QIAO QINGFENG (CN)
ZHANG FENG (CN)
ZHAO CHANGLONG (CN)

Application Number:

PCT/CN2019/110241

Publication Date:

July 09, 2020

Filing Date:

October 10, 2019

Export Citation:

Click for automatic bibliography generation Help

Assignee:

CRRC QINGDAO SIFANG CO LTD (CN)

International Classes:

B61F17/30

Foreign References:

CN108407839A	2018-08-17
CN108909358A	2018-11-30
CN107697090A	2018-02-16
CN105492292A	2016-04-13
DE4405861A1	1994-09-08
CN109733435A	2019-05-10

Other References: