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钟表式百分表是机械式测量仪表中用途比较广泛的一个品种。为了不断提高产品质量,改进仪表的精度,本文根据参考资料[1]、[2]介绍的理论研究,对钟表式百分表传动链中所存在的误差进行了分析和讨论,并举例进行了计算。一、钟表式百分表传动机构特点和工作原理(一)钟表式百分表传动机构概述目前国内外钟表式百分表传动机构多采用齿条齿轮式、杠杆齿轮式、蜗轮蜗杆式三种结构。其中杠杆齿轮式结构,由于其理论误差随测量范围的加大而急剧增加,因此,对行程较大的百分表不易达到产品所要求的精度。我们仅见到民德 KS 公司生产的测量范围为0—3毫米的百分表采用了这种结构。蜗轮蜗杆式结构,民德耶那 Carl Zeiss 厂、意大利
Clock-type dial indicator is a mechanical measuring instruments more widely used in a variety. In order to continuously improve the product quality and improve the accuracy of the instrument, this paper analyzes and discusses the errors existing in the clock type dial indicator transmission chain according to the reference research [1], [2] Calculate. First, the type of dial indicator transmission mechanism features and working principle (A) Clock type dial indicator transmission Overview At present, the clock type dial indicator transmission mechanism at home and abroad and more use rack and pinion, lever gear, worm gear three structure. Among them, the lever gear type structure, due to its theoretical error increases rapidly with the increase of the measuring range, therefore, it is difficult to reach the precision required by the product for the dial indicator with larger travel. We only see this kind of structure adopted by MINDER KS, which has a measuring range of 0-3 mm. Worm gear structure, Carl Zeiss factory in De Noyes, Italy