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十一、近似计算的各零件减速器中,有些零件形状或受载特性是相当复杂的,要精确计算这些零件是有困难的,然而,这些零件的主要尺寸是根据经验选取的。通常具有高的可靠性,这说明采用近似的计算方法是有效的。把机座与机盖联接在一起的紧固螺栓,基础螺栓、机壳壁、底脚和凸缘、齿轮的轮毂和轮缘,端盖和轴承套等,均属于这类零件。如果基本尺寸不小于按下式计算所得的尺寸时,那么这类零件的无故障工作概率为1。紧固螺栓的直径d=(T_(2_(max)))~(1/3)≥10,它的强度等级应不低于6.6级。地脚螺栓的直径d_φ=1.25d≥12,它的强度等级未作规定,如果没有数据可循,其强度等级取3.6级。
In the approximate calculation of each part reducer, some parts shape or load characteristics is quite complex, to accurately calculate these parts is difficult, however, the main dimensions of these parts is empirically selected. Usually with high reliability, which shows that the approximate calculation method is effective. Fastening bolts, foundation bolts, casing walls, feet and flanges, gear hubs and rims, end caps, bearing sleeves, etc. that connect the frame to the cover belong to this category. If the basic size is not less than the size calculated according to the following formula, then this part of the work-free probability of 1. The diameter of fastening bolt d = (T_ (2_ (max))) ~ (1/3) ≥10, its strength grade should not be lower than 6.6. Anchor bolt diameter d_φ = 1.25d ≥ 12, its intensity level is unspecified, if there is no data to follow, the intensity level to take 3.6.