IMPROVEMENTS IN TIRE UNIFORMITY TESTING
    1.
    发明申请
    IMPROVEMENTS IN TIRE UNIFORMITY TESTING 审中-公开
    轮胎均匀性测试中的改进

    公开(公告)号:WO2003089893A1

    公开(公告)日:2003-10-30

    申请号:PCT/US2003/012199

    申请日:2003-04-21

    CPC classification number: G01M17/022 G01M17/02

    Abstract: A method and apparatus for testing tires. In step (110), the radial force variation is measured in the current direction of rotation. The first harmonic of this force variation is calculated in step (120) and a tire position corresponding to either zero crossing of the first harmonic is determined in step (130). In step (140), the tire position is monitored until a zero crossing is reached. The rotation direction is reversed at the appropriate location in step (150) and the test is continued.

    Abstract translation: 一种用于轮胎测试的方法和装置。 在步骤(110)中,在当前的旋转方向上测量径向力的变化。 在步骤(120)中计算出该力变化的一次谐波,并且在步骤(130)中确定对应于第一谐波的过零点的轮胎位置。 在步骤(140)中,监视轮胎位置,直到达到过零点。 旋转方向在步骤(150)中的适当位置反转,并继续测试。

    TIRE POSITIONING SENSOR
    2.
    发明申请
    TIRE POSITIONING SENSOR 审中-公开
    轮胎定位传感器

    公开(公告)号:WO2005085794A1

    公开(公告)日:2005-09-15

    申请号:PCT/IB2005/050689

    申请日:2005-02-24

    CPC classification number: G01M17/021 G01M17/022

    Abstract: A method and apparatus for chucking tires to be tested in a tire testing apparatus. A lower chuck assembly or spindle includes a lower rim that is engageable with a bead region of the tire to be tested. An upper chuck assembly includes an upper rim that is engageable with an upper bead region of the tire to be tested. The upper rim is reciprocally movable towards and away from the lower rim. A plurality of sensors associated with the movable rim monitors the closing distance between the upper rim and the side wall of the tire that is being chucked, during the chucking process. A controller controls the movement of the upper rim in response to the distance data obtained from the sensors. If the data obtained indicates that the tire is mispositioned on the lower rim, the controller will slow the rate of downward movement of the upper rim and reinitiate a chucking cycle if the upper rim reaches a predetermined lower position and the data from the distance sensors still indicates that the tire is not properly positioned. The sensors are mounted to an adjustable stripping mechanism that forms part of the upper chuck assembly. The positions of the sensors are adjusted as the tire strippers are adjusted.

    Abstract translation: 一种用于在轮胎测试装置中夹紧要测试的轮胎的方法和装置。 下夹盘组件或主轴包括可与待测轮胎的胎圈区域接合的下轮辋。 上卡盘组件包括可与要测试的轮胎的上胎圈区域接合的上边缘。 上边缘可以朝着和远离下边缘往复移动。 在夹紧过程期间,与可移动边缘相关联的多个传感器监测正被夹紧的轮胎的上边缘和侧壁之间的关闭距离。 控制器响应于从传感器获得的距离数据来控制上边缘的运动。 如果获得的数据表明轮胎在下边缘处错位,则控制器将减慢上边缘的向下运动速度,并且如果上边缘到达预定的较低位置并重新开始夹紧循环,并且来自距离传感器的数据仍然 表示轮胎没有正确定位。 传感器安装到形成上部卡盘组件的一部分的可调节剥离机构。 随着轮胎剥离器的调整,调整传感器的位置。

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