发明名称 |
APPARATUS AND METHODS FOR FABRICATING A HELICOPTER MAIN ROTOR BLADE |
摘要 |
Apparatus and methods for fabricating a helicopter main rotor blade (100) include a compaction fixture (10) for assembling and compacting blade subassembly components and a sheath spreading/insertion apparatus (50) for spreading and inserting a leading-edge sheath (120) onto the blade subassembly during the compaction process. The compaction fixture includes a lower assembly (12) having a contoured upper airfoil nest (14) mounted in combination with a support structure and an upper assembly (30) having a pressure bag (32) affixed in sealed combination to a contoured backplate affixed in combinatio n to a structural support truss (36). With the upper and lower assemblies in locked combination, the pressure bag is pressurized to compact the assembled blade subassembly components. The sheath spreading/insertion apparatus (50) includes a movable stanchion (52), upper (60U) and lower (60L) elongate carriage members mounted in synchronized movable combination with the stanchion, and a row of suction cu ps (66) mounted in combination with each carriage member. A vacuum source (68) is pneumatically interconnected to the suction cups (66 ) to generate suction forces to cause the leading-edge sheath to be spread apart. Movement of the movable stanchion causes the spread-apart leading-edge sheath to be insertedonto the blade subassembly during compaction thereof. |
申请公布号 |
CA2195078(C) |
申请公布日期 |
2006.08.29 |
申请号 |
CA19952195078 |
申请日期 |
1995.06.21 |
申请人 |
UNITED TECHNOLOGIES CORPORATION SIKORSKY AIRCRAFTDIVISION |
发明人 |
LEAHY, KEVIN PATRICK;JONES, COREY D. |
分类号 |
B29C70/44;B64C27/46;B29C70/78;B29C70/86;B29D99/00;B64C27/473;B64F5/00 |
主分类号 |
B29C70/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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