| LI Jian1,ZHOU Han2, LYU Chun-guang1,TIAN Jing.Analysis of Pipe Self-Locking Structure Based on Maintenance Design[J].航空发动机,2017,43(4):69-73 |
| Analysis of Pipe Self-Locking Structure Based on Maintenance Design |
| DOI： |
| Key Words:low bypass ratio pipe fitting connecting structure self-locking assembly maintainability aeroengine |
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| Abstract:In order to study the effect of pipe connection structure on the maintainability design, aiming at the structure of pipe for the
military low bypass ratio engine and from the maintenance point of view, four pipe self-locking connection structures were studied in detail,
respectively, wire thread insert, claw-type, snap ring and hook/card slot, the characteristic and the mechanism of different self-locking were
analyzed. The conclusion is drawn that the torque overcomes the thread loose produced by the deformation of the screw thread structure, and
achieves self-locking indirectly acting on the thread. The advantages and disadvantages of the different self-locking are compared. The selflocking
pipe has the advantages of improving the maintainability and assembly significantly with the cancellation of the fuse. |
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