螺旋圆柱齿轮和直齿圆柱齿轮比较起来,具有一系列的优点。螺旋圆柱齿轮的主要优点之一,是它在传动时的平稳和无噪音。如所週知,这是因为直齿圆柱齿轮在传动的过程中,其进入啮合和离开啮合是沿着轮齿的整个齿宽度进行,接触线是平行於齿轮轴线的直线,是突然改变的;而螺旋圆柱齿轮在传动的过程中,其进入啮合和离开啮合是沿着齿工作宽度由点到线和由线到点,接触线是不平行於齿轮轴线的直线,是逐渐变动的。 Spiral cylindrical gear and spur gear compared to a series of advantages. One of the main advantages of a helical spur gear is its smooth and noise-free operation. As is known, this is because spur gears are engaged and disengaged during gear transmission along the entire tooth width of the gear teeth, and the contact line is a straight line parallel to the gear shaft axis and abruptly changes. The spiral cylindrical gear in the process of transmission, its into and out of engagement is along the working width of the teeth from point to line and from line to point, the line of contact is not parallel to the axis of the gear is a gradual change.