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GQ40钢筋切断机凸轮机构,采用立方抛物线f(z)=3z~2-2z~3作为凸轮工作段(进程)理论轮廓线。下面就其工作过程的载荷特性进行分析。一、方程的建立图1所示为切断机摆动滚子从动件凸轮机构简图,其中l为摆杆OA的长度;L为凸轮转动中心与摆杆转动中心连线的距离;R为A点的凸轮理论轮廓线长度;α为压力角;Ψ。为摆杆初始角;Ψ为摆杆转动角;λ为凸轮工作点相对于开始点的转角;P为凸轮对滚子的作用力;P′为P对摆杆作用的有效分力。
The GQ40 rebar cutting machine cam mechanism uses the cubic parabola f(z)=3z~2-2z~3 as the cam profile (process) theoretical contour line. The following analyzes the load characteristics of its working process. First, the establishment of the equation Figure 1 shows the cutting machine swing roller follower cam mechanism diagram, where l is the length of the swing rod OA; L is the distance between the cam rotation center and the swing rod connection center; R is A The point of the cam theoretical contour length; α is the pressure angle; Ψ. Is the initial angle of the pendulum; Ψ is the pivot angle of the pendulum; λ is the angle of the cam working point relative to the starting point; P is the force of the cam on the roller; P′ is the effective force of P on the pendulum.