The invention discloses a wingtip folding driving mechanism based on a shape memory alloy torque tube, and relates to the technical field of aircrafts, the wingtip folding driving mechanism comprises a driving unit, the driving unit comprises a bias torsion spring and a shape memory alloy torque tube arranged between a wing main body and a wingtip; one end of the shape memory alloy torque tube is fixedly connected with the wing main body, the other end of the shape memory alloy torque tube is circumferentially clamped with the flange, the flange is fixedly connected with one end of the sleeve, the sleeve sleeves the shape memory alloy torque tube, the sleeve is in clearance fit with the shape memory alloy torque tube, the sleeve is fixedly connected with the wingtip, and the offset torsion spring sleeves the sleeve. One end of the bias torsion spring is fixedly connected with the wing main body, and the other end is fixedly connected with the wingtip; the braking unit is used for braking rotation of the flange; and the temperature control unit is used for changing the environment temperature of the shape memory alloy torque tube. The wing tip folding driving mechanism is simple in structure, and wing tip folding driving can be achieved under the conditions of smaller space and smaller weight.
本发明公开一种基于形状记忆合金扭力管的翼尖折叠驱动机构,涉及飞行器技术领域,包括:驱动单元,驱动单元包括偏置扭转弹簧和设置在机翼主体与翼尖之间的形状记忆合金扭力管;形状记忆合金扭力管一端与机翼主体固连、另一端与法兰周向卡接,法兰与套筒的一端固连,套筒套设在形状记忆合金扭力管上,且套筒与形状记忆合金扭力管间隙配合,套筒与翼尖固连,偏置扭转弹簧套设在套筒上,且偏置扭转弹簧一端与机翼主体固连、另一端与翼尖固连;制动单元,制动单元用于对法兰的转动进行制动;温度控制单元,温度控制单元用于改变形状记忆合金扭力管的环境温度。本发明的结构简单,能够在更小的空间、更小的重量的条件下实现翼尖折叠的驱动。
Wingtip folding driving mechanism based on shape memory alloy torque tube
一种基于形状记忆合金扭力管的翼尖折叠驱动机构
2024-07-09
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |