The invention relates to a bevel gear coaxial contra-rotating double-rotor-wing transmission device capable of dividing power twice. The transmission device is mainly applied to the main speed reducerof the helicopter, and has the advantages of compact structure, easiness in processing, high transmission efficiency, smaller load borne by gear teeth, larger power-to-weight ratio and higher reliability. The engine is connected with the straight-tooth cylindrical gear through the power input shaft, the straight-tooth cylindrical gear is meshed with the two non-orthogonal face gears at the same time, power distribution and first-stage speed reduction are achieved, the torque transmitted by a gear pair is reduced, and the reversing function is achieved; the non-orthogonal surface gear is connected with the straight-tooth cylindrical gears through the duplicate gear shaft and uniformly transmits power to the four straight-tooth cylindrical gears, so that secondary power distribution and secondary speed reduction are realized; and power is transmitted to the four spiral bevel gears from the four straight-tooth cylindrical gears through the four duplicate gear shafts, the four spiral bevel gears are meshed with the upper bevel gear and the lower bevel gear respectively, and three-stage speed reduction and one-time power parallel operation confluence are achieved.

    本发明涉及一种两次功率分流的锥齿轮共轴对转双旋翼传动装置。其主要应用于直升机的主减速器上,具有结构紧凑、易于加工且传动效率高,轮齿承受的载荷更小、功重比更大、可靠性更高。本发明发动机通过动力输入轴与直齿圆柱齿轮相连接,直齿圆柱齿轮同时与两个非正交面齿轮相啮合,实现动力分流,一级减速,降低齿轮副传递的扭矩,完成换向功能;非正交面齿轮通过双联齿轮轴与直齿圆柱齿轮连接,并将动力均匀的传递给四个直齿圆柱齿轮,实现动力二次分流及二级减速;动力通过四根双联齿轮轴由所述四个直齿圆柱齿轮传递给四个螺旋锥齿轮,四个螺旋锥齿轮分别与上锥齿轮、下锥齿轮啮合,实现三级减速,一次功率并车汇流。


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    Title :

    Bevel gear coaxial contra-rotating double-rotor-wing transmission device capable of dividing power twice


    Additional title:

    两次功率分流的锥齿轮共轴对转双旋翼传动装置


    Contributors:
    DONG HAO (author) / WANG LIBANG (author) / ZHANG JIANWEN (author) / ZHANG HAOQIN (author) / ZHAO XIAOLONG (author) / LIU XIYAO (author) / LI BO (author) / WANG YAJUAN (author)

    Publication date :

    2020-06-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F16H Getriebe , GEARING



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