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犁体设计图用作图法完成,图纸上样板曲线的数据及展开图的绘制,其精确度受着作图法很大的限制。本文试图用解析法来完成犁体设计图,推导出一些有关公式,用列表法是很容易完成一系列运算的。曲导线方程的建立通常曲导线是由下端为一倾斜直线,上端再连接一段抛物线而成,如图1所示。设直线部分的长度为S,确定曲导线形状。
The plow body design is used to complete the drawing method, the data of the model curve on the drawing and the drawing of the development drawing, the accuracy of which is greatly limited by the drawing method. This paper attempts to use analytical method to complete the plow body design, derived some of the formula, using the list method is very easy to complete a series of calculations. Curved wire equation is usually established by the curve is a straight line from the lower end of a straight line, connected to the upper end of a parabola, as shown in Figure 1. Let the straight part of the length of S, determine the shape of curved wire.