| 摘要 |
<p>A tail gas balance system used for an unmanned helicopter, the unmanned helicopter includes a fuselage, an engine, a rotor wing, a parachute assembly and a tail pipe; the parachute assembly is mounted on a rotor wing head of the rotor wing, and a nose of the fuselage is provided with a carrying device, the tail gas balance system includes a tailpipe which is arranged at the rear of the fuselage and is connected to the engine, an exhaust port of the tailpipe is directly toward underneath, and the fuselage is internally provided with a gravity center adjusting device. The exhaust port of the tailpipe of the tail gas balance system is directly toward underneath. The carrying capacity may be increased correspondingly as lift force is increasing, simultaneously, the center of the unmanned helicopter shifts backward by adjusting the distribution of counterweight packages of the gravity center adjusting device in the fuselage to balance the lift force generated by tail gas, thus guaranteeing the balance of the unmanned helicopter during normal operation. In the event of an accident when the unmanned helicopter is flying, the tail of the unmanned helicopter tilts down and the nose upwarps as the gravity center shifts backward so that the tail pipe of the unmanned helicopter touches down first, thus cushioning the impact during landing, preventing the carrying device on the nose from damaging, avoiding unnecessary economic losses and reducing the risk cost of the unmanned helicopter in operation.</p> |
