Tool and method for measuring deflection angle of airplane control surface

Abstract

The invention discloses a tool and a method for measuring the deflection angle of an airplane control surface. The measuring tool comprises a control surface clip (1), a stabilizer clip (6), a brace rod (5), a regulating arm (4), a sensor support (3), an angular displacement sensor (7) and a forked rocker arm (2). The measuring process comprises the following steps: clamping the stabilizer clip (6) of the measuring tool to a force-bearing position of a vertical tail stabilizer (45), sequentially mounting the brace rod (5), the regulating arm (4), the sensor support (3), the angular displacement sensor (7) and the forked rocker arm (2) in place, clamping the control surface clip (1) to a force-bearing position of an upper rudder (46), and moving the angular displacement sensor (7) to a rotary shaft of the upper rudder (46) so as to measure the deflection angle of the control surface. The invention can be simultaneously used for measuring the deflection angle of the rudder or the elevator in the bench test or the ground built-in test of an airplane, can be directly used for measuring the deflection angle of the control surface without disassembling structural parts of the airframe, and is especially suitable for the condition that the deflection amount can not be educed for measurement by means of a link mechanism in case that the rotary shaft is arranged inside the envelope of the control surface.

Description

technical field [0001] The invention belongs to the fields of testing and machinery, and in particular relates to a tool for measuring the deflection angle of an aircraft rudder surface and a measuring method thereof. Background technique [0002] At present, in the principle and function test of the aircraft control system, the dynamic and static test of the rudder system and the elevator system are very important. In this type of test, it is necessary to measure the deflection angle of each rudder surface without exception. During the test process, the deflection angle of the rudder surface cannot be measured directly, and a mechanical linkage mechanism is required. For the on-board test, since all parts of the aircraft have been installed, it is impossible to disassemble the skin or extend the rudder surface shaft to The outside of the fuselage is directly connected to the sensor, and the measurement of the deflection angle of the rudder surface has become a difficult poi...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is: to propose a kind of measuring tool and measuring method of deflection angle of aircraft rudder surface, overcome the existing aircraft rudder surface deflection angle measurement tool is difficult to install, difficult to measure, not suitable for dynamic measurement, or need to dismantle the body or skin It cannot meet the shortcomings of dismantling the fuselage during the on-board test before the first flight.

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