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    • 3. 发明授权
    • Method of and apparatus for scanning the surface of a workpiece
    • 扫描工件表面的方法和设备
    • US5189806A
    • 1993-03-02
    • US928667
    • 1992-08-17
    • David R. McMurtryBrian C. R. Henning
    • David R. McMurtryBrian C. R. Henning
    • G01B21/04G05B19/401
    • G01B21/04G05B19/4015G05B2219/37207
    • A method of scanning a workpiece surface is disclosed in which a machine carrying a scanning head is moved along a path, preferably at constant velocity, while a surface contacting device is moved by the scanning head to oscillate transversely to the instantaneous path direction to scan an area of the surface. Transducers on the machine, the head, and where necessary the surface contacting device provide data relating to the positions of the surface contacting device to data gathering device under the control of a computer. Apparatus for carrying out the method is also disclosed and includes a scanning head for moving the surface detecting device which may be a stylus or a probe relative to one axis, and preferably orthogonal axes. The head can include a set-up for inertia balancing the head and mass balancing the surface detection device. Also the head may include air bearings on which the stylus or probe are supported for oscillation. Surfaces to be scanned may be flat plates, cones, bores or other surfaces with compound angles.
    • 公开了一种扫描工件表面的方法,其中携带扫描头的机器优选以恒定的速度沿着路径移动,同时表面接触装置被扫描头移动以横向于瞬时路径方向振荡以扫描 表面的面积。 机器上的传感器,头部以及必要时的表面接触装置在计算机的控制下提供与表面接触装置的位置相关的数据收集装置的数据。 还公开了用于执行该方法的装置,并且包括用于使表面检测装置移动的扫描头,该检测装置可以相对于一个轴线,优选地是正交的轴线可以是触针或探针。 头部可以包括用于惯性平衡头部和质量平衡表面检测装置的装置。 此外,头部可以包括用于振动的触针或探针被支撑在其上的空气轴承。 待扫描的表面可以是平板,锥体,孔或具有复合角度的其它表面。
    • 4. 发明授权
    • Vegetation cutter
    • 植被切割机
    • US4276737A
    • 1981-07-07
    • US81429
    • 1979-10-03
    • Brian C. R. Henning
    • Brian C. R. Henning
    • A01D34/68A01D34/695A01D34/78A01D35/26
    • A01D34/695A01D2101/00
    • The invention is directed to an air cushion supported vegetation cutter including a cutter casing housing an impeller for creating the air cushion in conjunction with the casing. An aperture in the casing permits air flow to the impeller and a support structure supports a motor for driving the impeller. The support structure provides a duct for the flow of cooling air over the motor and the duct has cooling air outlets located upstream of the aperture in the casing. This arrangement provides an improved motor cooling arrangement in which the motor cooling air and the air for the impeller interact upstream of the impeller.
    • 本发明涉及一种气垫支撑的植被切割机,其包括:壳体,该切割器壳体容纳用于与壳体一起产生气垫的叶轮。 壳体中的孔允许空气流到叶轮,并且支撑结构支撑用于驱动叶轮的马达。 支撑结构提供用于在电动机上方的冷却空气流动的管道,并且管道具有位于壳体中的孔的上游的冷却空气出口。 这种布置提供了改进的电动机冷却装置,其中电动机冷却空气和用于叶轮的空气与叶轮的上游相互作用。