A rotor system fixing device to improve the safety of unmanned helicopter engine ground experiments

Abstract

A rotor wing system fixing device for improving the safety of a ground test for the engine of an unmanned helicopter comprises an overall pitch fixing component, a horizontal variable pitch fixing component, a longitudinal variable pitch fixing component, a tail blade pitch fixing component, a cross rod, a diagonal member component and a bolt fixing component, wherein the diagonal member component and the bolt fixing component are used for fixing the cross rod; the cross rod is assembled on an original longitudinal steering engine mounting lug on a helicopter platform and then is fixed on a body lug of the helicopter through the lug fixing component and the diagonal member component; one ends of the overall pitch fixing component, the longitudinal variable pitch fixing component and the horizontal variable pitch fixing component are respectively assembled with an overall pitch operating rock arm, a longitudinal variable pitch operating rock arm and a horizontal variable pitch operating rock arm of the helicopter, and the other ends of the general pitch fixing component, the longitudinal variable pitch fixing component and the horizontal variable pitch fixing component are connected with the cross rod; two ends of the tail blade pitch fixing component are respectively connected with a tail blade pitch operating rock arm of the helicopter and a joint lug at the position of a tail beam. The rotor wing system fixing device for improving the safety of the ground test for the engine of the unmanned helicopter solves the problem that a control system is far from being well developed during the development of unmanned helicopters or a rotor wing system is loose during the maintenance and commissioning of engines.

Description

technical field [0001] The invention relates to a rotor system fixing device for improving the safety of an unmanned helicopter engine ground experiment, which can fix the rotor collective pitch, the rotor horizontal and vertical pitch and the tail rotor pitch according to the needs, and belongs to the unmanned helicopter experiment module and the unmanned helicopter Design technology field. Background technique [0002] In the case of unmanned helicopter development, general maintenance or modification, etc., it is often necessary to conduct engine ground test tests. During the ground debugging experiment of the engine, only the throttle steering gear needs to be controlled. Generally, the plane of the rotor is required to be in the horizontal position, the collective distance is in the lowest position, and the tail rotor is required to be in the neutral position. What the existing unmanned helicopter adopts is to carry out the locking of steering gear by the mode that th...

AI Technical Summary

Problems solved by technology

It can effectively solve the problem of unmanned helicopters in the process of development, modification or overall maintenance, when the control system is immature or does not have an avionics system, etc., the problem of engine maintenance and test run rotor system is loose and floating, thereby improving the safety of the experimental process

Images