FIELD: aircraft engineering.
SUBSTANCE: screw propeller comprises blades, hub with flange, cardan with crossbar arranged in the hub case, slider connected by outer splines with hub bush, dog with levers fitted in said slider, blade turning links connected with dog levers. Root of every blade accommodates axial hinge composed of journal with two lugs for attachment to mate lugs at hub case and fitted in two bearings in blade frame root part. Torsion bar is fitted in said journal and secured by pins at spar root area on one side and, on opposite side, at journal box base. Root part of blade spar has blade turn lever secured thereto with its arms articulated with blade turn link of appropriate dog lever. Elastomer bearings are fitted in hub cardan.
EFFECT: simplified design, decreased weight, longer life and higher reliability.
2 cl, 10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| COAXIAL MAIN ROTOR OF ROTORCRAFT | 2021 |
|
RU2756861C1 |
| MAIN ROTOR | 2005 |
|
RU2296697C1 |
| HELICOPTER TAIL ROTOR | 2023 |
|
RU2794368C1 |
| HELICOPTER ROTOR HEAD | 2016 |
|
RU2636233C1 |
| MAIN ROTOR | 2005 |
|
RU2281885C1 |
| HELICOPTER ROTOR HUB | 2007 |
|
RU2363620C2 |
| DEVICE FOR CONTROL OF HELICOPTER PROPELLER RAKE | 2017 |
|
RU2694779C2 |
| BUSH OF ROTOR WITH REVERSIBLE TORSION ORIENTATION AND BLADE IMPACT SMOOTHING AUTOMATIC CONTROL UNIT | 0 |
|
SU1806064A3 |
| ROTOR SYSTEM OF ROTARY-WING AIRCRAFT | 2020 |
|
RU2751654C1 |
| COAXIAL LOAD-BEARING SYSTEM | 2020 |
|
RU2751168C1 |
