The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2019
Filed:
Nov. 16, 2015
Crrc Qingdao Sifang Co., Ltd., Qingdao, Shandong, CN;
Peidong Wang, Shandong, CN;
Pingyu Zhou, Shandong, CN;
Xiaojiang Zhou, Shandong, CN;
Xiaojun Lv, Shandong, CN;
Daqiang Wang, Shandong, CN;
CRRC QINGDAO SIFANG CO., LTD., Qingdao, Shandong, CN;
Abstract
A railway vehicle and an axle box structure thereof are provided. The axle box structure includes an axle box body and a positioning node mounting seat. The axle box body includes an upper box body and a lower box body. The upper box body and the lower box body enclose a bearing mounting chamber together. A lower end surface of the upper box body has a convex portion, and an upper end surface of the lower box body has a concave portion. A first semi-circular hole and a second semi-circular hole are respectively provided at the middle of the upper box body and the lower box body. If the convex portion and the concave portion are assembled in a sealed coupling manner, the bearing mounting chamber is formed by the first semi-circular hole and the second semi-circular hole.