Bearing assembly having a flex pivot to limit gimbal bearing...

F - Mech Eng,Light,Heat,Weapons – 16 – C

Patent

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Details

F16C 19/55 (2006.01) F16C 33/58 (2006.01)

Patent

CA 2664267

A bearing assembly suitable for use in a gimbal servo system is provided. The bearing assembly comprises a housing, a first shaft, a bearing rotatingly coupling the first shaft to the housing such that the first shaft is adapted to rotate about an axis relative to the housing, a second shaft having a first end adapted to be coupled to a payload, and a flex pivot element pivotally coupling an end of the first shaft to a second end of the second shaft such that the second shaft is adapted to rotate relative to the first shaft via the flex pivot element. In response to a rotation of the second shaft, the flex pivot element is adapted to pivot an angle about the first shaft axis. The pivot angle reflects a displacement of the second shaft relative to the first shaft and corresponds to a friction disturbance of the bearing.

L'invention concerne un ensemble palier qui convient pour une utilisation dans un servomécanisme à cardan. Cet ensemble palier comprend un logement, un premier arbre, un palier couplant de manière rotative le premier arbre au logement de sorte que ce premier arbre est conçu pour tourner autour d'un axe par rapport au logement, un second arbre possédant une première extrémité conçue pour être couplé à une charge utile et un élément pivot articulé couplant de manière pivotante une extrémité du premier arbre avec une seconde extrémité du second arbre de sorte que le second arbre est conçu pour tourner par rapport au premier arbre via cet élément pivot articulé. En réponse à une rotation du second arbre, l'élément pivot articulé est conçu pour pivoter à un angle autour du premier axe d'arbre. L'angle du pivot reflète un déplacement du second arbre par rapport au premier arbre et correspond à une perturbation par frottement du palier.

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