Two-stage contra-rotating lift fan rotor structure

• Main Authors: YIN XUEMEI, ZHANG YAN, WU YUNWU, GAO XING, ZHENG WENTAO, ZHAN YUEXIN, MENG DEJUN, ZHANG QIANG, ZHANG XIN
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2023
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The invention belongs to the technical field of lift fan structure design, and particularly relates to a two-stage contra-rotating lift fan rotor structure which comprises a first-stage rotor blade disc, a second-stage rotor blade disc, a third-stage rotor blade disc and a fourth-stage rotor blade disc. The first-stage rotor rear shaft neck is connected to the rear side of the first-stage rotor blade disc wheel disc; the front end of the first-stage rotor rear transmission adapter shaft is connected with the rear end of the first-stage rotor rear shaft neck; the second-stage rotor blade disc is coaxially arranged behind the first-stage rotor blade disc, and the front side of the wheel disc is provided with a forward annular connecting edge; the forward annular connecting edge and the rear shaft neck of the first-stage rotor are tightly sealed through two labyrinth teeth; the second-stage rotor rear transmission adapter shaft sleeves the periphery of the first-stage rotor rear shaft neck, and the front end of