杠杆压铊张紧系统带锯空转振动特性的分析

›› 1992, Vol. 28 ›› Issue (1): 58-64.

杠杆压铊张紧系统带锯空转振动特性的分析

王华滨陈守谦耿绍辉

东北林业大学

收稿日期:1990-10-24 修回日期:1900-01-01 出版日期:1992-01-25 发布日期:1992-01-25

ANALYSIS OF VIBRATION CHARACTER0sTICS OF BAND-SAW WOTH LEVER-WEIGHT STRAIN SYSTEM DURING NO-LOAD

Wang Huabin,Chen Shouqian,Geng Shaohui

Northeast Forestry University

Received:1990-10-24 Revised:1900-01-01 Online:1992-01-25 Published:1992-01-25

摘要/Abstract

摘要： 本文对杠杆压铊张紧系统带锯产生振动的原因,进行了试验和理论研究。用2034型频谱分析仪试验表明,带锯条振动属于复杂周期信号的离散型频谱,是由多个简谐振动叠加而成;同时理论考察分析表明,带锯条杠杆压铊张紧系统不同于秤量重物的“平衡秤”,不可能达到“静平衡”,而是在锯轮参数激振作用下形成周期性受迫振动。锯轮参数激振和杠杆压铊张紧系统位移激振之间交互作用,是使带锯条产生周期振动并引起张紧力发生变化的重要原因。

关键词: 杠杆压铊张紧系统, 振动特性, 参数激振, 位移激振, 复杂周期信号离散型频谱

Abstract: The vibration of band-saw caused by Lever-weight strain system was studied Results tested by 2034 type frequency analyzer showed, That the vibration spectrum of band-saw is a complex periodic signal discrete frequency spectrum, which consists of the repeated addition by a series of sinple harmonic vibration. At the same time, The investigation indicated that the lever-weight strain system of band-saw is different from "Weighing balancer" and can not reach "static balance" while produce a periodic forced vibration under the parametric excitation force of wheels. The interactions between the parametric excitation of the band-saw wheels and the displacement excitation of the leverweight system are critical causes for periodic vibrating and changing tensile force of band-saw.

Key words: Lever-weight strain sysem, Vibration characteristic, Parametric excitation, Displacement excitation, Complex periodic signal discrete frequency spectrum

王华滨陈守谦耿绍辉. 杠杆压铊张紧系统带锯空转振动特性的分析[J]. , 1992, 28(1): 58-64.

Wang Huabin;Chen Shouqian;Geng Shaohui. ANALYSIS OF VIBRATION CHARACTER0sTICS OF BAND-SAW WOTH LEVER-WEIGHT STRAIN SYSTEM DURING NO-LOAD[J]. , 1992, 28(1): 58-64.

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