Electric control stepless large helicopter variable-speed transmission
A helicopter and speed-variable technology, which is applied in the direction of rotorcraft, motor vehicles, mechanical equipment, etc., can solve the problems of transmission system impact, etc., and achieve the effect of continuous change, continuous transmission ratio and simple overall structure
Pending Publication Date: 2018-05-08
南京瑞蓝世光电传感技术研究院有限公司
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Problems solved by technology
The power transmitted to the tail of the utility model no longer passes through the gearbox, which saves the special tail drive shaft, greatly reduces the structural components, makes the shaft easy to manufacture, and saves cost, but it is easy to switch from high to low speed on the speed change When the torque cannot be supplemented, it will bring greater impact and other problems to the entire transmission system
Method used
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[0018] like Figure 1-Figure 4 As shown, an electronically controlled stepless large-scale helicopter variable speed gearbox includes a main reducer 1, a planetary gear reducer 2, a main control allocation unit 3 and a primary transmission mechanism 4, and the main reducer 1 includes the first Bevel gear 14 and coaxial surface gear, coaxial surface gear comprises upper rotor 11 and lower rotor 12, and first bevel gear 14 is arranged between upper rotor 11 and lower rotor 12 and mutually meshes with upper rotor 11 and lower rotor 12 respectively . An idler 13 is also arranged between the upper rotor 11 and the lower rotor 12, and the idler 13 meshes with the upper rotor 11 and the lower rotor 12 respectively. A lower rotor output shaft 121 is provided on the coaxial between the upper rotor 11 and the lower rotor 12 , and an upper rotor output shaft 111 is provided on the axis of the upper rotor 11 . The planetary gear reducer 2 includes a sun gear 23 and a ring gear 21, the s...
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The invention provides an electric control stepless large helicopter variable-speed transmission which comprises a main reducer, a planet gear reducer, a master control deploying unit and a first-stage transmission mechanism. The main reducer comprises a first bevel gear and a coaxial surface gear which are engaged with each other. The planet gear reducer comprises a sun gear and a gear ring. Thesun gear is connected with the first bevel gear. Multiple planet gears are arranged between the sun gear and the gear ring. The planet gears are engaged with the sun gear and the gear ring. The mastercontrol deploying unit comprises an annular gear and an annular gear controller which are connected with each other, and the annular gear is engaged with the gear ring. The first-stage transmission mechanism comprises power input mechanisms and a second bevel gear, each power input mechanism is provided with a gear, the gears are engaged with the second bevel gear, and the second bevel gear is connected with the sun gear. According to the electric control stepless large helicopter variable-speed transmission, the stepless reduction speed of a large unmanned helicopter is smoothly converted into an ideal speed during high-speed taking off.
Description
technical field [0001] The invention belongs to the technical field of variable speed of helicopters, and in particular relates to an electronically controlled stepless large-scale variable-speed gearbox for helicopters. Background technique [0002] The traditional gearbox will have intermittent problems when changing the speed, which will affect the control of the helicopter and other issues. A patent for an unmanned helicopter or aeromodelling helicopter gearbox (publication number: CN203421149U) discloses that the upper shell is conical, the lower shell is cylindrical, and the main shaft passes downward from the top of the upper shell and passes through the main teeth and the lower shell in the lower shell. The input gear shaft meshes, and the input gear shaft cooperates with the synchronous wheel through a one-way bearing on the outer side of the lower shell side wall, and the end of the input gear shaft is connected to the gearbox of the machine tail through a coupling...
Claims
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IPC IPC(8): F16H57/023F16H57/038B64C27/12
CPCF16H57/023F16H57/038B64C27/12
Inventor 刘一新
Owner 南京瑞蓝世光电传感技术研究院有限公司