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Mechanism for variable adjustment of blades for a system of contra-rotating propellers, and a system of contra-rotating propellers comprising at least one such mechanism
Mechanism for variable adjustment of blades for a system of contra-rotating propellers, and a system of contra-rotating propellers comprising at least one such mechanism
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机译:用于对向旋转螺旋桨系统的叶片的可变调节机构以及包括至少一个这样的机构的对向旋转螺旋桨系统
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摘要
A mechanism for adjusting pitch of blades of a propeller of a system of contra-rotating propellers for a turbomachine, wherein each blade moves around a radial axis. The mechanism includes a linear actuator, a structure to transform movement imparted by the linear actuator into rotation of each of the blades in a synchronized manner around their radial axis, the structure including a bracket of longitudinal axis formed of a central ring, an outer ring, and multiple radial arms rigidly connected to the central ring and to the outer ring. The central ring can be subject to actuation of the linear actuator, and the central ring and the outer ring are positioned in two separate planes, orthogonal to the longitudinal axis, such that the bracket is shaped as a truncated cone.
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