Eight claw roof beam overall structure of large -scale thin wall

The utility model belongs to the technical field of carrier rocket final stage primary load bearing girder, concretely relates to eight claw roof beam overall structure of large -scale thin wall, the purpose is solved jing ziliang that traditional rocket final stage primary load bearing girder adopted can not satisfy the problem that whole instrument, cable overall arrangement required. Its characterized in that, it is including a center section of thick bamboo, variable cross section H -beam, explosion bolt box and front end frame, the variable cross section H -beam is fixed on the surface of a center section of thick bamboo, the outer end at the variable cross section H -beam is fixed to explosion bolt box, connect through the front end frame between the adjacent explosion bolt box. The utility model discloses an eight claw roof beam overall structure of large -scale thin wall has better rigidity and bearing capacity, can satisfy engine, payload's installation requirement, provides abundant all the other instruments of space installation, equipment, cabling. This eight claws roof beam is the most important, the topmost part of the cabin body, subtracts heavily to exceed 20% after optimizing.