Aero-engine nozzle movement mechanism tester

Abstract

The invention discloses a tester for a nozzle movement mechanism of an aero-engine. A cylindrical duct of a nozzle execution mechanism is mounted on a tester mounting table through a flange structure; one end of each first adjusting piece is connected with the front end of the cylindrical duct through a rotating pair, and the multiple first adjusting pieces are installed in a circumferential array mode. The other end of the first adjusting sheet is connected with the second adjusting sheet through a revolute pair; the second adjusting piece is hinged to the connecting rod, the other end of the connecting rod is hinged to the adjusting ring, the adjusting ring is connected with the hydraulic driving system, and folding and unfolding of the first adjusting piece and the second adjusting piece are achieved. The follow-up heating system comprises a ceramic heating sheet, and the ceramic heating sheet is attached to the inner side surfaces of the first adjusting sheet and the second adjusting sheet; the follow-up pressurization system is a flexible air bag; and the rear end of the follow-up pressurization system is connected with the pneumatic control system. According to the invention, uniform loading can be realized, local or overall heating can be realized, and a test which is compatible with various bionic motion configurations and has a multi-kinetic parameter measurement capability is realized.

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