AXLE FOR USE IN GAUGE-CHANGEABLE WHEEL SET, AND GAUGE-CHANGEABLE WHEEL SET

Title:

AXLE FOR USE IN GAUGE-CHANGEABLE WHEEL SET, AND GAUGE-CHANGEABLE WHEEL SET

Document Type and Number:

WIPO Patent Application WO/2022/021842

Kind Code:

A1

Abstract:

A gauge-changeable wheel set, comprising an axle (10). A central through hole (15) is formed in the axial direction of the axle (10); an external spline (11) extending along the axial direction of the axle (10) is constructed in the periphery of the axle (10) close to a middle portion; first non-self-locking threads (14) having opposite rotation directions are respectively arranged on the portions, located at the two sides of the axial direction of the external spline (11), of the periphery of the axle (10); an oblong hole (12) penetrating in the radial direction of the axle is formed in the portion, located on the external spline (11), of the axle (10); the length direction of the oblong hole (12) is the axial direction of the axle (10); and at least one first raceway (13) provided around the axle (10) in a circumferential direction is constructed on the portion of the axle (10) between one of the first non-self-locking threads (14) and the external spline (11). The axle (10) is ingenious in structure design, so that a connection structure of the axle (10) and a wheel is simple, and the gauge-changeable reliability is high. Further disclosed is an axle for use in a gauge-changeable wheel set.

Inventors:

ZHANG ZHENXIAN (CN)
WEI JIAQI (CN)
WANG XU (CN)
JIAO JINGHAI (CN)
HU HAITAO (CN)

Application Number:

PCT/CN2021/076526

Publication Date:

February 03, 2022

Filing Date:

February 10, 2021

Export Citation:

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Assignee:

CRRC QINGDAO SIFANG CO LTD (CN)

International Classes:

B61F7/00; B60B35/00; B60B37/00

Foreign References:

CN111806500A	2020-10-23
CN108407845A	2018-08-17
CN109572740A	2019-04-05
CN111137319A	2020-05-12
EP0905002B1	2002-09-11

Other References: