| 摘要 |
FIELD: aeronautical engineering. SUBSTANCE: propeller has multi-blade hub 1, hydraulic mechanism with piston 2 fastened with cross-piece 3 and connected with pins 4 of sleeves 6 by means of connecting rods 4. Innovation of invention consists in providing the piston with circular bore changing to flange 8 which is engageable with flange of cross-member 9 located below weathercock 10 and fastened by means of rods 11 which are locked from turning and are connected with connecting rods 4 of blades 12; upper bead 13 of diaphragm 14 is fitted with seal and is movably mounted in inner chamber 15 of cross-member; its splined rim 16 has internal splines 17 engageable with splined bush 18 secured as cantilever with upper portion of diaphragm 14 located below its bead 13; diaphragm is locked relative to oil line 19 and propeller hub 1 by means of nut 20. EFFECT: reduced mass and increased speed of response due to sectional spline hub with diaphragm. 2 dwg |
