No-back/offset gear box
    1.
    发明授权
    No-back/offset gear box 有权
    无背/偏移齿轮箱

    公开(公告)号:US06231012B1

    公开(公告)日:2001-05-15

    申请号:US09180778

    申请日:1998-11-12

    IPC分类号: B64C358

    摘要: Referring to FIG. 2, disclosed is an aircraft compound no-back/offset gearbox (2) with an integral load proportional safety (no-back) brake (50). The four gears are all 16 diametral pitch, involute external spur gears with 20 degree standard pressure angles. The two gear stages are interconnected with a mechanical fuse or shearout (40) designed to fail under excess shear loads and protect components downstream of the input shaft (10) from excess torque in the event of a system jam. The shearout (40) is essentially a quill shaft with external splines at both ends and an hourglass-shaped shear neckdown in the middle. The purpose of the no-back brake (50) is to prevent air loads from causing slat movement in the event of a torque tube disconnect. Referring to Figure, the no-back consists of a set of ball ramp (22) and brake plate components connected to the gearbox's output shaft. The ball ramp device converts part of the back driving torque into the axial force required to clamp the brake stack components (30) and restrain the output shaft. In this way, the back driving torque is reacted to structure and movement of the slat is prevented.

    摘要翻译: 参考图 2,公开了具有整体负载比例安全(无背)制动器(50)的飞机复合无背/偏移齿轮箱(2)。 四个齿轮均为16个直径节距,具有20度标准压力角的渐开线外直齿轮。 两个齿轮级与机械保险丝或剪切套(40)相互连接,设计成在过大的剪切载荷下失效,并在系统堵塞的情况下保护输入轴(10)下游的部件免受过大的扭矩。 剪力纱(40)基本上是一个带有轴向两端的花键轴和在中间的沙漏形剪切颈缩。 无背制动器(50)的目的是在扭矩管断开的情况下防止空气负载引起板条运动。 参考图,无背部由一组球道(22)和连接到变速箱输出轴的制动板组件组成。 滚珠坡道装置将后驱动扭矩的一部分转换成夹紧制动叠片部件(30)所需的轴向力并限制输出轴。 以这种方式,反向驱动扭矩反应结构,并且防止了板条的移动。

    No-back brake
    2.
    发明授权
    No-back brake 有权
    无背制动

    公开(公告)号:US5944148A

    公开(公告)日:1999-08-31

    申请号:US144401

    申请日:1998-08-31

    摘要: Cooperating brake discs, rotors, and stators all are located at the same side of a pair of cam plate flanges. The cam plate flanges are coupled to an inner sleeve and input gear, respectively, with balls and ball ramp sockets for forcing apart the cam plate flanges when an output side is driven relative to an input side. The brake is effective to prevent relative rotation of the output side relative to the input side, but is released by rotation of an input gear for driving the inner sleeve.

    摘要翻译: 合作制动盘,转子和定子都位于一对凸轮板法兰的同一侧。 凸轮板凸缘分别与内套筒和输入齿轮联接,具有球和滚珠斜坡插座,用于当输出侧相对于输入侧被驱动时迫使凸轮板凸缘分开。 制动器有效地防止输出侧相对于输入侧的相对旋转,但是通过用于驱动内套筒的输入齿轮的旋转而释放。