ОписаниеBP-14
The main gearbox BP-14 is designed to sum the power of two engines and transfer it to the main rotor shaft and the drives of helicopter units. The gearbox scheme is stepped, planetary.
To ensure flight with one engine not working, as well as in the self-rotation mode of the main rotor, the gearbox has two freewheel clutches that automatically disconnect one or both engines from the helicopter transmission.
In the front cover of the gearbox there are flanges for mounting motor supports, two motor drives and a fan drive.
A sump, which is an oil collector, is attached to the lower part of the gearbox, and an oil unit is attached to the sump from unit.
The main gearbox together with the engines is installed in the engine nacelle of the helicopter and is attached by means of a sub-gear frame to the power frames No. 7 and 10 in the central part of the fuselage.
THE MAIN TECHNICAL PARAMETERS OF BP-14
Rotation speed, rpm: 15000
input 192
shafts of the drive shaft HB 2594
of the tail shaft 5894
Gear ratio to the HB shaft 0,0128
Gear ratio of the tail shaft drive 0,1729
Gearbox weight (without oil) 785 kg
