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本文指出了一些教科书和论文中关于旋耕弯刀侧切刃起始半径r_0的计算公式的错误,它应改为: 侧切刃起始半径r_0是设计旋耕弯刀的基本参数之一。笔者在毕业设计过程中,发现现行教科书及有关论文所给出的旋耕弯刀侧切刃起始半径r_0的计算公式有误。原式(图1)为: r_0=(R~2+S~2-2S(2RH-H~2)~(1/2))~(1/2) (1)式中 R——刀片端点最大切削半径; H——最大设计耕深; S——刀片最大进给量。
This paper points out the errors in some textbooks and papers about the formula of the starting radius r_0 of rotary cutting machete side cutting edge, which should be changed as follows: The starting radius r0 of side cutting edge is one of the basic parameters for designing rotary machete. In the process of graduation design, the author found that the formula of the initial radius r_0 of rotary cutting machete side cutting edge given by the current textbooks and related papers is wrong. The original formula is as follows: r_0 = (R ~ 2 + S ~ 2-2S (2RH-H ~ 2) ~ (1/2)) ~ (1/2) Maximum cutting radius; H - maximum design depth of cultivation; S - maximum blade feed.