DE1628278C - Method of making hollow fan blades - Google Patents

Method of making hollow fan blades

Info

Publication number
DE1628278C
DE1628278C DE1628278C DE 1628278 C DE1628278 C DE 1628278C DE 1628278 C DE1628278 C DE 1628278C
Authority
DE
Germany
Prior art keywords
wing
sword
fan blades
hollow fan
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
German (de)
Inventor
Karl 7220 Schwenningen Frank
Original Assignee
Helios Apparatebau KG, Müller & Co, 7220 Schwenningen
Publication date

Links

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (6)

Patentansprüche:Patent claims: 1. Verfahren zum Herstellen von hohlen Lüfterflügeln aus zwei glasfaserverstärkten, vorgefertigten Flügelteilen, die an ihren Umlaufkanten miteinander verbunden werden und zwischen denen ein Tragholm angeordnet wird, dadurch gekennzeichnet, daß in jeden Flügelteil (1, 2) beim Vorfertigen ein Tragholm (6) eingebaut wird und die Tragholme (6) bei dem anschließenden Verbinden der Flügelteile mit einem Schwert (8) formschlüssig miteinander verbunden werden.1. Method for producing hollow fan blades from two fiberglass-reinforced, prefabricated Wing parts that are connected to one another at their peripheral edges and between which a support spar is arranged, characterized in that a support spar is placed in each wing part (1, 2) during prefabrication (6) is installed and the support struts (6) during the subsequent connection of the wing parts be positively connected to one another with a sword (8). 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man zuerst den Tragholm (6) des druckseitigen Flügelteils (1) mit dem Schwert (8) verbindet und dann das Schwert (8) in eine Nut (7) im saugseitigen Flügelteil (2) einfügt.2. The method according to claim 1, characterized in that the support beam (6) is first the pressure-side wing part (1) with the sword (8) connects and then the sword (8) in a Insert groove (7) in the suction-side wing part (2). 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, ά£Ά man das Schwert (8) in die beiden Flügelteile (1, 2) nach deren Verbindung einführt und dann mit ihnen verbindet.3. The method according to claim 1, characterized in that ά £ Ά to the blade (8) into the two wing parts (1, 2) introduced by the connection, and then connects with them. 4. Vorrichtung nach dem Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Schwert (8) aus dem gleichen Werkstoff wie die Flügelteile (1,2) besteht4. Apparatus according to the method according to claim 1, characterized in that the Sword (8) consists of the same material as the wing parts (1,2) 5. Vorrichtung nach dem Verfahren des Anspruchs 1, dadurch gekennzeichnet, daß die Traghohne (6) Glaskordeln enthalten, die in verschiedenen Längen dem Querschnitt des Flügels entsprechend eingepaßt und mit einem Glasfaservlies umhüllt sind.5. Device according to the method of claim 1, characterized in that the Traghohne (6) Contain glass cords in different lengths according to the cross-section of the wing are fitted and covered with a glass fiber fleece. 6. Vorrichtung nach dem Verfahren des Anspruchs 1, dadurch gekennzeichnet, daß der Traghohn (6) an der Flügelnabe (3) in einen Einspannzapfen (4) auslaufend geformt ist.6. Device according to the method of claim 1, characterized in that the Traghohn (6) on the wing hub (3) is shaped to taper into a clamping pin (4).

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