Method for balancing rotation torque of helicopter body

Abstract

The invention discloses a method for balancing the rotation torque of a helicopter body. According to a traditional helicopter, a tail rotor and a duct type tail rotor are adopted, two sets of rotor wings rotate oppositely so as to generate active airflow, and the active airflow is reversely sprayed out on the tail portion, so that the rotation torque of the body of the traditional helicopter is balanced; or the body of the traditional helicopter is balanced through other methods. The rotation torque of the body of the traditional helicopter can be balanced through the methods, however, the traditional helicopter adopting the methods has certain defects. According to the method for balancing the rotation torque of the helicopter body, the structure that a torque balancer is connected to a speed reducer spindle of a helicopter so as to replace a tail rotor, one of two sets of rotor wings, and a tail airflow body rotation torque balancing structure of the traditional helicopter is used for balancing the rotation torque of the helicopter body. By the adoption of the method, a helicopter which is free of a tail rotor, a power transmission part of the tail rotor, and a tail airflow torque balancing structure and is provided with one set of rotor wings can be obtained.

Description

Technical field: [0001] The invention relates to the field of aviation, in particular to a method for balancing the rotational torque of a helicopter body. Background technique: [0002] During the use of the helicopter, the body will rotate and lose lift, resulting in a crash. In order to balance the rotational torque of the body, the traditional helicopter adopts the method of installing a variable pitch propeller at its tail to balance the rotational torque of the body, thus realizing A traditional helicopter with a tail rotor that is compatible with the method is proposed. Because the traditional helicopter needs a tail rotor to balance the rotational torque of the body, in order to reduce the power consumption of balancing the rotational torque of the body, the length of the tail is used to increase the main shaft of the rotor to The lever between the tail rotors is used to reduce the power consumption of the tail rotor, and in order to ensure the safety of the rotor ro...

AI Technical Summary

Problems solved by technology

[0002] During the use of the helicopter, the body will rotate and lose lift, resulting in a crash. In order to balance the rotational torque of the body, the traditional helicopter adopts the method of installing a variable pitch propeller at its tail to balance the rotational torque of the body, thus realizing A traditional helicopter with a tail rotor that is compatible with the method is proposed. Because the traditional helicopter needs a tail rotor to balance the rotational torque of the body, in order to reduce the power consumption of balancing the rotational torque of the body, the length of the tail is used to increase the main shaft of the rotor to The lever between the tail rotors is used to reduce the power consumption of the tail rotor, and in order to ensure the safety of the rotor rotation, a certain safety distance is required between the rotor and the tail rotor, which leads to the length of the traditional helicopter tail. , The power transmission distance of the tail pulp is long, the volume ratio of the tail structure is large, and the weight is relatively high. Due to the existence of the tail pulp: the tail pulp is noisy, easy to hurt the ground personnel, and the tail pulp is easy to collide with other objects and damage it, resulting in a crash accident

There are also traditional helicopters that use the method of reversing the coaxial dual rotors to balance the rotational torque of the body: a certain safety distance is required between the coaxial dual rotors, which leads to too long main shaft and increases flight resistance. The flight speed is limited, the dual-rotor mechanism is complicated, and the control is relatively difficult.

Traditional helicopters that use ducted tail rotors, and use the rotor downwash to generate active airflow, and reverse ejection from the tail still exist: the tail is long, its structure is relatively large, its weight is relatively high, and its resistance is relatively high. Big, inefficient shortcomings

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