Pitch swing frame of a helicopter crash-resistant fuel system test rig

摘要

The utility model relates to the field of measuring technology, mainly to test equipment intended for bench testing of the operating modes of the fuel system of helicopters during maneuvers during the flight. The rotary pitch frame of the test facility of the accident-resistant fuel system of the helicopter, according to the utility model, is made of rectangular shape with longitudinal 1 and transverse 2 walls made of box beams of rectangular cross-section. In the middle part of each bearing longitudinal beam 3, upper 4 and lower 5 reinforcing beams are welded, from the outside of which a plate 6 of load distribution between the beams is welded. On the inner side of the longitudinal walls, stiffening ribs 7 are welded. At the ends of the beams of each transverse wall 2, end plates 8 are welded perpendicular to their longitudinal axes, and mating plates 10 are attached to them with bolts 9, to which the ends of the load-bearing beams 3 of the longitudinal walls 1 are welded overlapping. Along the perimeter of the welded ends of the load-bearing beams 3, stiffening ribs 11 are welded.;The technical result of the utility model is to increase the rigidity and strength of the structure. 1 wp f-ly, 2 dwg