Casing for improving adjustment of aero-engine fan inlet guide vanes

• Main Authors: LIN SEN, LIAO WENBING, WU JUN, WU XIUKUAN, LIU JUNJIE, JI GUOFENG, SUN YINGCONG, LIN KAI, ZHANG SHAOJIANG, MO PENG, LI JUNLI, YIN XIANTAO, LIANG XIANGHUA, GAO XIANG, YANG JIASHOU, SHI YUNFEI, YANG DONGJIAO
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2019
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The invention discloses a casing for improving adjustment of aero-engine fan inlet guide vanes. A plurality of bosses are arranged on the outer surface of the casing at intervals in the movement direction of an actuating ring, and the heights and the positions of the bosses are matched with the actuating ring, so that the actuating ring is rotatably arranged on the bosses in a sleeving manner. According to the casing, a novel fan inlet guide vane adjusting mechanism structure is designed, the assembling number of parts is reduced, the concentricity of the actuating ring is met, meanwhile, theadjusting rule is consistent, a support structure is omitted so that the strength of the actuating ring can be improved, and the casing is simple in structure and easy to machine, assemble and maintain. 本发明公开了一种改进航空发动机风扇进口导叶调节的机匣，机匣的外表面沿作动环的运动方向间隔设有多个凸台，凸台的高度和位置与作动环配合，使作动环可转动的套设在凸台上；本发明的机匣设计了一种新型风扇进口导叶调节机构结构，减少零件的装配数量，满足作动环同心度同时，使调节规律达到一致，并且取消支架结构以提高了作动环的强度，本发明结构简单，易于加工、装配和维护。