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Title:
SPECIAL-SHAPED COMPOSITE MATERIAL SHAFT, PREPARATION METHOD THEREFOR, AND CONNECTING METHOD OF THE SPECIAL-SHAPED COMPOSITE MATERIAL SHAFT AND METAL FLANGE
Document Type and Number:
WIPO Patent Application WO/2019/010931
Kind Code:
A1
Abstract:
A special-shaped composite material shaft, a preparation method therefor, and a connecting method of the special-shaped composite material shaft and a metal flange. According to the preparation method, inflatable and a prepreg tape is wound on deflatable central spindles, and then curing molding is performed. A formed first inflatable central spindle and second inflatable central spindle are provided, and the prepreg tape is wound first on a central spindle in an inflating state, and then the second inflatable central spindle is squeezed to tension the prepreg tape so that the prepreg tape is in tight fit with the surface of the first inflatable central spindle. The method can prepare a special-shaped composite material shaft having bulges; the bulge parts and a shaft body are reinforced by continuously winding the prepreg tape; and the prepared composite material shaft is high in strength and good in performance, and can be connected with a metal flange. According to the connecting method for a metal flange and the composite material shaft, the composite material shaft is inserted into connecting holes of the metal flange by means of the bulges at two ends of the composite material shaft, so that the defect that bolt connection and other connection manners affect product performance is avoided; and the connecting method has high connecting strength, stable structure and strong torsion resistance.

Inventors:
LI, Wenbo (No. 99 Shuanghe Street, Shunyi District, Beijing 0, 101300, CN)
Application Number:
CN2018/071650
Publication Date:
January 17, 2019
Filing Date:
January 05, 2018
Export Citation:
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Assignee:
BEIJING AUTOMOTIVE GROUP CO., LTD. (No. 99 Shuanghe Street, Shunyi District, Beijing 0, 101300, CN)
BEIJING AUTOMOBILE RESEARCH LNSTITUTE CO., LTD. (No. 99 Shuanghe Street, Shunyi District, Beijing 0, 101300, CN)
International Classes:
B29C70/30; B29C70/54; F16C3/02; F16D1/06
Domestic Patent References:
WO2009022643A12009-02-19
WO2014013161A12014-01-23
Foreign References:
CN107399091A2017-11-28
CN105904742A2016-08-31
CN104626603A2015-05-20
EP0192505A11986-08-27
CN205956234U2017-02-15
CN106863835A2017-06-20
US20040227393A12004-11-18
Attorney, Agent or Firm:
INNOTRACK INTELLECTUAL PROPERTY LAW FIRM (Room A1108, Building 31 No.1 Beishatan, Deshengmenwai, Chaoyang District, Beijing 3, 100083, CN)
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