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    • 11. 发明授权
    • Drive for balancing machines
    • 驱动平衡机
    • US4177678A
    • 1979-12-11
    • US911043
    • 1978-05-30
    • Gerhart W. Harant
    • Gerhart W. Harant
    • G01M1/06G01M1/16
    • G01M1/06
    • The invention relates to machines which determine the unbalance in a workpiece by rotating the workpiece and measuring the unbalance forces reacted into the machine frame. A drive arrangement is disclosed for rotating a spindle supporting the workpiece in such a machine for balancing vehicle wheels. The arrangement comprises a spindle housing for rotatably supporting the spindle and mounted on a base frame in a manner whereby the forces are reacted into a single direction and measured. The invention resides in the drive arrangement which includes speed changing means in the form of a worm gear on the spindle and a worm drive mounted on the spindle housing. A drive motor for driving the worm is mounted on the machine frame, that is, away from the spindle housing and drives the worm by means of a belt drive between a motor pulley and a pulley connected to the worm. The arrangement disclosed provides optimum isolation of forces occurring in the motor and drive and the speed changing means ensures that any spurious cyclical forces reacted into the single direction occur at a substantially different frequency to those being measured and are thus easily isolated electrically.
    • 本发明涉及通过旋转工件并测量反应到机架中的不平衡力来确定工件不平衡的机器。 公开了一种驱动装置,用于使在这种用于平衡车轮的机器中支撑工件的心轴旋转。 该装置包括主轴壳体,用于可旋转地支撑主轴并以这样的方式安装在基架上,使得力被反作用于单个方向并被测量。 本发明涉及一种驱动装置,其包括主轴上的蜗轮形式的变速装置和安装在主轴壳体上的蜗杆传动装置。 用于驱动蜗杆的驱动马达安装在机架上,即远离主轴壳体,并通过皮带驱动器驱动蜗杆,电机皮带轮与连接在蜗杆上的皮带轮之间传动。 所公开的布置提供了在马达和驱动器中出现的力的最佳隔离,并且速度改变装置确保反应成单个方向的任何杂散循环力以与被测量的频率基本上不同的频率发生,因此容易地电隔离。