Process and device for assembly of landing gear on an aircraft structure and aircraft comprising such landing gear
AssigneeAirbus France
InventorGregory Reniau
Life of this patent
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Abstract
A landing gear hinge shaft is installed on an aircraft structure using at least two ball joints (22), at least one of which is adjustable. The differences between the theoretical and real positions of the centers of the balls are measured, and the adjustments that have to be made to bring the centers of the balls back to their theoretical positions is deduced. This is done by making a first adjustment in the axial direction using a shim (30) and a second adjustment in the radial direction by adjusting the rotation of an inner cage (34) and an outer cage (36) of the ball joint. The inner and outer cages have eccentric axes that facilitate the adjustment.
Claims12
Process for assembly of at least one hinge shaft of a landing gear on an aircraft structure, through two ball joints connected to the said structure, characterized in that it comprises the following steps:
- measurement of the differences between the theoretical positions and the real positions of the centers of the ball joints ;
- actuation of adjustment means associated with at least one of the said ball joints, to bring the centers of the ball joints into their theoretical positions;
- blockage of the said adjustment means;
- and
- installation of the hinge shaft in the ball joints.
Aircraft comprising a landing gear installed on an aircraft structure, through two ball joints connected to the said structure, characterized in that it comprises the following steps:
- measurement of the differences between the theoretical positions and the real positions of the centers of the ball joints ;
- actuation of adjustment means associated with at least one of the said ball joints, to bring the centers of the ball joints into their theoretical positions;
- blockage of the said adjustment means;
- and
- installation of the hinge shaft in the ball joints.
Device for installation of a hinge shaft of a landing gear on an aircraft structure, the said device comprising at least one ball joint comprising a cage that can be fixed on the structure and a ball that will support the said hinge shaft, and being characterized in that the cage characterizes an outer cage that can be fixed on the structure, the said outer cage being centered on a first axis and with a reaming with axis offset from the first axis, an inner cage installed free to rotate in the reaming and with an inner spherical surface with axis offset from the axis of the reaming, and means of blocking the inner cage and the outer cage in fixed angular positions, in which the outer cage is installed in a ring provided with marking means and that can be fixed on the structure.
Dependencies are inferred from the claim text.