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这里介绍两种步进机构。它较目前常见的一些机构有其显著优点,可供自动化设计人员和其他有关人员参考。一、暂停机构暂停机构,又移齿轮加-减速机构(见图1)。行星轮绕中心轮回转,行星轮轮缘上一点P,在输出转臂内滑动,并使输出转臂绕中心O_1回转。如行星轮绕中心轮作等速ω回转,且:r_1=r_2=O_2P=C (1)则P点轨迹应为一外摆线。即:x=(r_1+r_2)cosθ-Ccos(r_1+r_2)θ/r_1y=(r_1+r_2)sinθ-Csin(r_1+r_2)θ/r_1 (2)将(1)代入(2)可得:
Here are two types of stepper mechanisms. It has significant advantages over some of today’s most common organizations and is available for reference by automation designers and other stakeholders. First, the suspension of institutions suspended institutions, and moving gears plus - deceleration mechanism (see Figure 1). The planetary wheel revolves around the center wheel, a point P on the planet wheel rim slides within the output arm and rotates the output arm around the center O_1. For example, if the planetary wheel rotates around the center wheel at constant speed ω, and: r_1 = r_2 = O_2P = C (1), the P point trajectory should be an epicycloid. That is, x = r_1 + r_2 cos θ - C cos θ r_1y = r_1 + r_2 sin θ - Csin r_1 + r_2 θ / r_1 (2) Substituting (1) into (2) :