Cellular Antenna Phase Shifter Positioning Using Motorized Torque Lever
    2.
    发明申请
    Cellular Antenna Phase Shifter Positioning Using Motorized Torque Lever 审中-公开
    使用电动扭矩杆的蜂窝天线移相器定位

    公开(公告)号:US20110267231A1

    公开(公告)日:2011-11-03

    申请号:US12771826

    申请日:2010-04-30

    摘要: An actuator providing improved torque, control, and reduced motor and actuator size is provided. An actuator according to one example may include a base plate, a stationary ring gear on the base plate, the ring gear having an arc of substantially less than a conventional full circle ring gear, a pivot assembly and a drive shaft. In one example, the ring gear is approximately half a circle. The pivot assembly may be pivotally mounted on the base plate. The pivot assembly may also have a control board, a stepper motor and a drive gear coupled to an output shaft of the stepper motor, the drive gear mounted on the pivot assembly such that the drive gear engages the stationary ring gear. In one example, the stepper motor is coupled to the drive gear via a worm gear, spur gear, and a shaft. In another example, the drive gear is mounted directly on the output shaft of the stepper motor. The actuator also includes a drive shaft having an axis parallel to a pivot of the pivot assembly.

    摘要翻译: 提供了提供改进的扭矩,控制和减小的电动机和致动器尺寸的致动器。 根据一个示例的致动器可以包括基板,基板上的固定环形齿轮,所述齿圈具有基本上小于常规全圆环齿轮的弧形,枢轴组件和驱动轴。 在一个示例中,齿圈大约是半个圆。 枢轴组件可以枢转地安装在基板上。 枢轴组件还可以具有控制板,步进马达和联接到步进马达的输出轴的驱动齿轮,驱动齿轮安装在枢转组件上,使得驱动齿轮接合固定齿圈。 在一个示例中,步进电动机通过蜗轮,正齿轮和轴联接到驱动齿轮。 在另一个例子中,驱动齿轮直接安装在步进电机的输出轴上。 致动器还包括具有平行于枢轴组件的枢轴的轴线的驱动轴。