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钢筋切断机最基本的执行机构是曲柄连杆滑块机构,它由曲柄、连杆、滑块所组成。通过机械传动装置将动力传递到曲轴上,然后经过连杆将曲轴的旋转运动转换为滑块的直线往复运动。曲轴旋转一周,冲切刀座往复一次,也就是剪切一次的过程。本课题着重研究钢筋切断机滑块的位移、速度、加速度和曲柄转角的关系,进而研究曲柄连杆的受力情况。一、曲柄连杆机构运动分析滑块的位移S(以下死点算起)是曲柄转角α的函数,S=f(α)。由图1所示几何关系得滑块C点的位置
The most basic implementing mechanism of the steel bar cutting machine is a crank connecting rod slider mechanism, which is composed of a crank, a connecting rod, and a slider. The power is transmitted to the crankshaft via a mechanical transmission, and then the connecting rod converts the rotational motion of the crankshaft into a linear reciprocating motion of the slider. The crankshaft rotates one revolution, and the punching knife seat reciprocates once, that is, cuts once. This topic focuses on the relationship between the displacement, velocity, acceleration and crank angle of the bar of the bar cutter, and then studies the force of the crank connecting rod. 1. The displacement S of the slider of the crank linkage (calculated from the following dead point) is a function of the crank angle α, S=f(α). The position of the slider C point is obtained from the geometric relationship shown in FIG.