A process for the preparation of a hollow shaft with at least one integral flange made of fiber composite material

摘要

In the case of a process for the production of a hollow shaft with at least one integral flange made of fiber composite material, a plurality of intersecting windings (13) made of fiber material onto a core (20) is applied, which is the inner contour of a shaft section (11) are mapped. The core (20) further comprises for each flange (12) a radial expanding ring (20) with an axial bearing surface (24) for presetting the form of a front wall of a flange (12) on. The windings (13) are connected by way of an outer circumferential portion (23) of the respective expanding ring (22) is placed and fixed. In the region of the spreader ring (22), one or more insert (15; 15 ''; 15 ") made of fibrous material between the windings (13) is inserted. After completion of the windings (13), the fixing of the wound fiber material is released. However, this is initially still held on the spreader ring (22). By means of a scraper means (30) are then the sections of the windings (13) from the outer peripheral portion (23) of the spreader ring (22) over an edge (25) and drawn off against the axial bearing surface (24) of the same is brought into contact, in order to obtain a partial section of a flange (12) to form. The present invention provides a simple and inexpensive production of fiber composite shafts with integrated flanges (12), a uniform and defined fiber structure in the region of the or, respectively, of the flanges (12) and a flexible design of the wall thickness of the flanges (12). Furthermore, a fiber composite shaft and a ..