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发电厂需要更换的蜗母杆与蜗母轮,大部分是汽轮机调速器和主油泵用的蜗母轮组,或者是锅炉传动炉篦用的蜗母轮组。测绘蜗母杆与蜗母轮的计算方法分两种。一种是公制,一种是英制。由於我国汽轮机和锅炉型式繁多,公制及英制均有,因此,在测绘时,必须先把本体制造厂的来源弄清,最好能找到原图查出中心距。一、测量方法: 在现场测绘草图时,首先应辨别清楚蜗母杆的螺纹(右螺旋或左螺旋)及蜗母杆的螺旋头数(单股头或
Power plants need to be replaced by the worm rod and the worm wheel, most of the turbine governor and the main oil pump with a worm wheel set, or the boiler drive grate worm wheel set. There are two ways to calculate the calculation of the worm rod and worm wheel. One is the metric system, one is the British system. Due to the large variety of steam turbines and boilers in our country, there are both metric and imperial systems. Therefore, when surveying and mapping, we must first understand the source of the ontology manufacturer, and it is best to find the center distance of the original drawings. First, the measurement method: In the field mapping sketches, we should first identify the worm screw thread (right or left spiral) and the screw rod spiral head (single-headed or