A device for angle deflection and locking of rudder blade

Abstract

The invention discloses a rubber sheet angle defecting and locking device which comprises a locking device and a transmission device. The transmission device drives a rubber shaft to rotate for a corresponding angle; and the locking device is used to lock the rubber shaft when the rubber shaft rotates to certain position, and unlock the rubber shaft in the next time so that the transmission device can continue to drive the rubber shaft to rotate to a next angle. The rubber sheet angle defecting and locking device controls deflection of the rubber sheet via an optimized structure, realizes angle controllable deflection of the rubber sheet of an airplane by replacing function of an angle sheet, ensures the positioning precision after the rubber sheet rotates to certain place, is capable of testing pneumatic data of the rubber sheet at different positions under the condition that a wind tunnel is not shut down, and is characterized by small size, large output torque and high transmission positioning precision.

Description

technical field [0001] The invention belongs to the field of aircraft rudder deflection control, and in particular relates to a device for angle deflection and locking of rudder blades, which is suitable for controlling the deflection angle of aircraft rudder blades in wind tunnel tests. Background technique [0002] When doing wind tunnel tests, it is usually necessary to test the rudder blades of the tested aircraft or model at various deflection angles to test the upper aerodynamic force of the aircraft at corresponding angles. [0003] At present, for the above tests, in order to obtain the working conditions of the rudder blades at different angles, it is usually carried out by installing angle blades of different specifications to simulate different deflection angles of the rudder blades. During the test, the angle piece at a certain angle is connected with the rudder piece and the fuselage through the countersunk head screw, and the rudder piece at this angle is indir...

AI Technical Summary

Problems solved by technology

[0004] However, on the one hand, the above-mentioned method requires the wind tunnel to be shut down multiple times to facilitate the testers to install different angle slices. Multiple tests require multiple power-offs, which not only consumes a lot of time, but also wastes resources. Frequent switching operations will reduce the life of the machine, and will cause the test to be unable to perform continuous deflection tests; on the other hand, the machining accuracy of the angle piece and the wear caused by the angle piece's perennial use will affect the deflection accuracy of the rudder piece through the angle piece , and the deflection of the rudder is simulated by the angle film, the test accuracy is not high

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