T200推土机铲刀背面的断面中(图1)的五个圆角,实际上是五个圆柱壳。当推土铲弧板产生挠曲变形时,圆柱壳具有很强的刚度,从而减少弧板与U型梁的有效宽度,并对弧板和U型梁纵向边缘构成很大的约束,限制了接头焊后变形。 The five fillets in the cross section of the back of the T200 bulldozer blade (Figure 1) are actually five cylindrical shells. When the bulldozing blade is flexed and deformed, the cylindrical shell has strong rigidity, so as to reduce the effective width of the arc plate and the U-shaped beam, and greatly constrain the longitudinal edges of the arc plate and the U-shaped beam, which limits Joint after welding deformation.