提出一种验收调整带锯条动态张紧力范围的方法,该方法实测带锯条在静态和动态下的固有频率,据此用弦振动公式推算出带锯条的静态和动态张紧力,其推算精度与调整带锯条张紧力范围吻合。本文用弦振动简化理论模型给出的规律符合木工带锯条张紧力和固有频率间的实际情况,所提出的测量动静频方法,可以作为调整带锯条动态张紧力验收手段这一问题的研究和工程应用。通过激振的方式检测带锯条的固有频率,判定其张紧状态,进而实现带锯条张紧的动态调整,对木工带锯条理论的深入研究和装备技术的改进有指导意义。
Authors put over a kind of method which checks and adjusts the dynamic tensile force range of band saw blades. It results its natural frequency under static and dynamic states, and come to calculats static tensile force and dynamic tensile force of band saw blades by means of the string vibration formula, its calculating precision is to be identical with adjusting tensile force range of band saw blades. The result showed that regularity to utilize string vibration simplified theory model accorded the actural condition of relationship tensile force and natural frequency with woodworking band saw blades. Meanwhile, it‘s full reciivability that the paper bringed forward the measure method of dynamic natural frequency and static natural frequency,as this study question to adjust inspection and acceptance means of dynamic tensile force of band saw blades and its engineering application. It inspected and measured natural frequencies of band saw blade to determine its tensile state,so that realized dynamic adjustment of tensiled band saw blade by means of shock excitation, and had supervise signification to lucubrate of woodworking band saw blade theory and improvenment of its equipment technology.