可变平板式仿生前缘襟翼装置

Variable flat plate type bionic leading edge flap device

Abstract

The invention discloses a variable flat plate type bionic leading edge flap device, which comprises a bionic leading edge flap, a leading edge flap receiving cavity and a telescopic drive mechanism; the bionic leading edge flap is placed in the leading edge flap receiving cavity on the leading edge of a wing and is connected with the telescopic drive mechanism; the telescopic drive mechanism is driven by a rack mechanism driven by a micro step motor; the bionic leading edge flap has a similar sine curve shape, and the bionic leading edge flaps with different performances can be obtained by changing wavelength and amplitude; the leading edge flap receiving cavity is used for receiving the bionic leading edge flap; the telescopic drive mechanism is composed of a step motor, a first speed reduction gear, a rack and a connecting piece; the step motor is mounted in the wing and is engaged with the high speed end of the first speed reduction gear; the rack is placed in a sliding groove on the wing and is engaged with the low speed end of the first speed reduction gear; and the rack is connected with the bionic leading edge flap through the connecting piece. The lift coefficient of the airplane after stalling angle of attack is increased and maneuvering performance of the airplane is greatly improved.
一种可变平板式仿生前缘襟翼装置,由仿生前缘襟翼、前缘襟翼收纳腔和伸缩作动机构构成;仿生前缘襟翼置于机翼前缘的前缘襟翼收纳腔内并与伸缩作动机构连接;伸缩作动机构由微型步进电机驱动的齿条机构带动;该仿生前缘襟翼具有类似正弦曲线形状,改变波长和振幅两个参数能获得性能各不相同的仿生前缘襟翼;该前缘襟翼收纳腔用于收纳仿生前缘襟翼。该伸缩作动机构由步进电机、一级减速齿轮、齿条和连接件组成;其中步进电机安放在机翼中,与一级减速齿轮的高速端啮合;齿条放置在机翼上的滑槽中,与一级减速齿轮的低速端啮合;齿条通过连接件和仿生前缘襟翼相连。它提高了飞机在失速攻角后的升力系数,大大提高了飞机的机动性能。

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Patent Citations (5)

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