DEVICE FOR FIXATION OF SEPARATED STRUCTURAL ELEMENTS Russian patent published in 2016 - IPC F16B1/00 F42B15/36 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used in units, for example, in aerospace engineering. Device to lock separated structural comprises contains housing with two pneumatic cylinders and arranged in them pneumatic pistons with rod ending with skewed wedge-like face, as well as locking element interacting with pneumatic pistons rods, having flange with conical generatrix, which is parallel to said skew end face of rod in plane passing through axis of locking element and pneumatic piston. Each pneumatic cylinder interacts with compression spring. Pneumatic piston has unit for prevention of circular rotation. It has rounding radius, and rod of each pneumatic piston has flattened surface facing lower base of cone of locking member, parallel to latter, with intersection with plane of wedge-shaped end chamfer rounding radius. Each spring is equipped with compression adjustment unit, and pneumatic piston stroke X is defined by relationship: G>x>B-K+(D-L-r-R) tgα, wherein: G is length of flats; b is radius of circle at intersection of conical generatrix of flange for locking member with plane of flats on rod of pneumatic piston; K is maximum distance from axis of locking element to point of intersection of wedge-shaped face of pneumatic piston rod chamfer with its cylindrical surface; D is diameter of pneumatic piston rod; L is depth of flats on pneumatic piston rod; r-radius of conical generatrix of locking element in lower cone base; R is radius of pneumatic piston rod at intersection of planes flats and skew of wedge-shaped face;α is inclination angle of conical generatrix of flange of locking element to its axis.

EFFECT: technical result is increasing in reliability and durability.

1 cl, 2 dwg