JOINT ARRANGEMENT, DRIVE SYSTEM FOR DRIVING CONTROL SURFACES OF AN AIRCRAFT AND AIRCRAFT WITH SUCH A DRIVE SYSTEM

摘要

A joint arrangement includes an outer joint component, an inner joint component, a cage and at least two balls located between the outer and inner joint component and in openings of the cage. The balls run in ball recesses, while at least two are in a mechanical contact with pressing devices, which are adapted for holding the respective balls in a radially flexible position relative to one of the inner joint component, the outer joint component and the cage and for pressing the respective balls into the corresponding recesses. Such a joint arrangement is based on a homokinetic joint and allows a homogenous transfer of torque without alternating acceleration and deceleration due to the action of the joint itself. Furthermore, a reliable and effective torque limitation may be accomplished.

主权项

1. A joint arrangement comprising:
an outer joint component having a spherical inner surface surrounding a hollow space and a first interface section, the inner surface comprising at least first and second outer ball recesses; an inner joint component positioned inside the hollow space of the outer joint component, the inner joint component having a spherical outer surface and a second interface section, the outer surface comprising at least first and second inner ball recesses; a spherical cage arranged in the hollow space between the inner surface of the outer joint component and the outer surface of the inner joint component, the cage comprising at least first and second openings extending from a side facing the outer joint component to a side facing the inner joint component; at least first and second balls; and at least first and second pressing devices, wherein the at least first and second balls are arranged in the corresponding outer ball recesses, the inner ball recesses and openings of the cage for transferring a torque from the first interface section to the second interface section, wherein the at least first and second pressing devices are arranged in one of the inner joint component, the outer joint component and the cage, each in mechanical contact with one of the at least first and second balls, wherein the at least first and second pressing devices are adapted for holding the at least first and second balls in a respective recess with a predetermined maximum pressing force for limiting a transferable torque of the joint arrangement.