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1. (WO2018120412) ANGLE-ADJUSTABLE TRIPOD UNIVERSAL JOINT

Pub. No.:    WO/2018/120412    International Application No.:    PCT/CN2017/075571
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Mar 04 00:59:59 CET 2017
IPC: F16D 3/20
Applicants: SHANGHAI GKN HUAYU DRIVELINE SYSTEMS COMPANY LIMITED
上海纳铁福传动系统有限公司
Inventors: LI, Xiaotian
李晓天
PENG, Tangjun
彭堂俊
WANG, Delin
王德林
ZHANG, Zhenghua
张正华
JIN, Lu
金璐
Title: ANGLE-ADJUSTABLE TRIPOD UNIVERSAL JOINT
Abstract:
An angle-adjustable tripod universal joint comprises a shaft (1), a roller (3) and a universal joint outer part (2). The universal joint outer part has a roller track (21) on the inner wall thereof. The roller is disposed within and rolls along the roller track. A ball-shaped shaft head (11) on the shaft rotates and remains in the internal cavity of the roller. The roller track has a guiding groove (201) thereon. The peripheral shape of the roller is cylindrical. The bottom surface (203) of the guiding groove is a horizontal surface, and two side surfaces (204) of the guiding groove are flat surfaces perpendicular to the horizontal surface. Part of the peripherical surface of the roller is inserted into a guiding groove, and the peripheral surface of the roller is tangent to the horizontal surface. The universal joint reduces the slip resistance and additional axial load of a tripod universal joint at a large operating angle.