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1. (WO2017016365) PRE-TIGHTENING DEVICE FOR RADIAL BEARING AND CANTILEVERED SHAFT INSTALLATION STRUCTURE

Pub. No.:    WO/2017/016365    International Application No.:    PCT/CN2016/087564
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Thu Jun 30 01:59:59 CEST 2016
IPC: F16C 25/08
F16C 35/07
Applicants: SCHAEFFLER TECHNOLOGIES AG & CO. KG
舍弗勒技术股份两合公司
Inventors: DUDZIAK, Mark
杜齐亚克•马克
SHI, Zhibin
石志斌
Title: PRE-TIGHTENING DEVICE FOR RADIAL BEARING AND CANTILEVERED SHAFT INSTALLATION STRUCTURE
Abstract:
Disclosed are a pre-tightening device and a cantilevered shaft installation structure comprising same. The pre-tightening device is assembled on a radial bearing installation mechanism. The radial bearing installation mechanism comprises a cantilevered shaft (5), a radial bearing installed on the cantilevered shaft (5) or at least two radial bearings (41, 42) installed on the cantilevered shaft in such a manner that the radial bearings are arranged side by side in an axial direction of the cantilevered shaft, and a base (45), wherein the base (45) abuts radially outward against the radial bearings (41, 42) and limits the radial bearings (41, 42) in the radial direction, the pre-tightening device and the radial bearings (41, 42) are arranged on the cantilevered shaft (5) side by side, and the pre-tightening device produces a pre-tightening force to the cantilevered shaft in a radial direction of the cantilevered shaft (5), the pre-tightening force enabling the radial bearings (41, 42) to press the base (45) to pre-tighten same. The pre-tightening device for a radial bearing of the present invention and a cantilevered shaft installation structure comprising the pre-tightening device can avoid slipping of the radial bearing and optimize load distribution in the radial bearing.