LIGHTWEIGHT UNIVERSAL JOINT, SPLINE FIT PAIR, AND TRANSMISSION SHAFT

WIPO Patent Application WO/2023/142833

A1

A lightweight universal joint, spline fit pair, and transmission shaft. The lightweight universal joint comprises a ball socket (3), a ball head (1), and a linear shaft (2); the ball socket (3) is of a thin-wall structure and is not used for transmitting transmission torque any more; the ball head (1) is hingedly mounted in the ball socket (3); a transmission hole is provided on the ball head (1); the linear shaft (2) penetrates through the transmission hole; two ends of the ball socket (3) are both connected to a fixed wing (8); and the fixed wing (8) is provided with a bearing hole (8-1) and a transmission key (8-2). The lightweight spline fit pair comprises a spline shaft (16) and a spline bushing (17) that are both of thin-wall structures. The lightweight transmission shaft comprises the lightweight universal joint and/or the lightweight spline fit pair. Both the ball socket (3) and the spline fit pair are integrally formed by using a thin-wall structure, such that non-cutting machining is realized, the production efficiency and the quality stability are improved, the weight of parts and the machining cost are reduced, and the lightweight development requirement of automobile parts is satisfied.

ZHU DEWEI (CN)
RONG XIAOYU (CN)
ZUO DOUDOU (CN)

PCT/CN2022/142169

August 03, 2023

December 27, 2022

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QINGDAO ACME INNOVATION TECH CO LTD (CN)

F16D3/20; F16D3/221

CN107605980A	2018-01-19
CN109441965A	2019-03-08
CN213744582U	2021-07-20
CN204782821U	2015-11-18
CN213176523U	2021-05-11
CN215487300U	2022-01-11
CN2259525Y	1997-08-13
GB222563A	1924-10-02

QINGDAO FIRST PATENT & TRADEMARK AGENT CO., LTD. (CN)

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