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    • 7. 发明授权
    • Deflecting roller for sensing the distribution of stress along the roller
    • 用于感测沿着辊的应力分布的偏转辊
    • US5629487A
    • 1997-05-13
    • US616490
    • 1996-03-19
    • Gert MuckeHelmut ThiesEbernhard Neuschutz
    • Gert MuckeHelmut ThiesEbernhard Neuschutz
    • B21B38/02G01L5/04
    • B21B38/02G01L5/045
    • A deflecting roller for sensing the distribution of stress along the roller while the roller deflects a strip of sheet material, and in particular, a deflecting roller having a plurality of stress sensors disposed around the roller such that the stress sensors sense the radially acting force on the roller, without contributing any interfering forces thereto. The roller has a plurality of measuring locations defined about the circumference of the roller. Each measurement location includes a recess in the roller; a stress-responsive sensor disposed in the recess; and a sensor cover positioned within the recess so as to cover the stress-responsive sensor. The sensor cover has the same cross sectional shape as the recess so that the sensor cover is guided by the wall of the recess for radial movement with respect to the roller. The sensor cover does not rest on a shoulder in the recess. Instead, an inside surface of the sensor cover bears against one end of the stress-responsive sensor, while the outside surface of the sensor cover is convex to match the circumferential shape of the roller. In operation, when the measuring roller acts to deflect a piece of sheet metal, the sensor cover is forced further into the recess by the piece of sheet metal, and as a result, the sensor cover compresses the stress-responsive sensor between the bottom of the recess and the inside surface of the sensor cover.
    • 一种偏转辊,用于感测沿着辊的应力分布,同时辊偏转片材条,特别是具有设置在辊周围的多个应力传感器的偏转辊,使得应力传感器感测径向作用力 辊,而不对其施加任何干扰力。 辊具有围绕辊的圆周限定的多个测量位置。 每个测量位置包括辊中的凹部; 设置在所述凹部中的应力响应传感器; 以及传感器盖,其位于所述凹部内,以覆盖所述应力响应传感器。 传感器盖具有与凹部相同的横截面形状,使得传感器盖由凹部的壁引导以相对于辊径向移动。 传感器盖不放置在凹槽的肩上。 相反,传感器盖的内表面承受应力响应传感器的一端,而传感器盖的外表面是凸形的以与辊的圆周形状相匹配。 在操作中,当测量辊用于偏转一块金属片时,传感器盖被片状金属进一步压入凹槽中,结果传感器盖压缩应力响应传感器的底部 传感器盖的凹部和内表面。