The invention provides a deviation-rectifying skid type undercarriage for plateau take-off and landing of a helicopter and a control method of the deviation-rectifying skid type undercarriage. The undercarriage comprises a supporting column, a brushless direct current motor, a universal joint, a worm and gear mechanism, a main skid and a deviation-rectifying skid. The main skid and the deviation rectifying skid can effectively adapt to soft and fluctuant road surfaces such as plateau snowfields, sand fields and marshlands; the brushless direct current motor enables the deviation rectifying skid on one side to be in contact with the ground through the force transmission effect of the universal joint and the worm and gear mechanism, the deviation rectifying skid on the other side is kept in an initial ground clearance state, and the yawing moment generated by the ground friction force difference value on the two sides on the machine body is the deviation rectifying moment. The problem that the deviation of the helicopter with the skid type undercarriage is difficult to rectify can be effectively solved; according to the self-locking principle of the worm and gear mechanism, when the deviation rectifying skid is subjected to huge impact force from an uneven road surface, the phenomenon that the motor is subjected to reaction torque to cause structural damage can be avoided.
本发明提供了一种用于直升机高原起降的可纠偏滑橇式起落架及其控制方法,起落架包括支柱、无刷直流电机、万向节、蜗轮蜗杆机构、主滑橇以及纠偏滑橇。所述主滑橇与纠偏滑橇可有效适应高原雪地、沙地、沼泽地等松软且有起伏的道面;所述无刷直流电机通过万向节与蜗轮蜗杆机构的力传导作用使一侧纠偏滑橇触地,另一侧纠偏滑橇保持初始离地状态,两侧的地面摩擦力差值对机体产生的偏航力矩即为纠偏力矩,能够有效解决装配滑橇式起落架的直升机滑跑纠偏较为困难的问题;通过所述蜗轮蜗杆机构的自锁原理,在纠偏滑橇遭受来自不平路面的巨大冲击力时可避免电机受到反扭矩而造成结构破坏。
Deviation-rectifying skid-type undercarriage for plateau take-off and landing of helicopter and control method thereof
用于直升机高原起降的可纠偏滑橇式起落架及其控制方法
2023-04-14
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
Helicopter skid type undercarriage opening degree measuring device
European Patent Office | 2023
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