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一、前言我厂自1958年生产各种苏联式振动台,其中产量最大、居统治地位者为扇形块离心式振动台,其用户几乎遍及全国各地。但该型振动台最大缺点为调节振幅时必须停车,然后将激振器中活动扇形块松开,相对于固定扇形块转过一角度,以改变两种扇形块离心力合力(即激振力)的大小,从而达到调幅的目的。为解决此问题,在1965年- 1975年十年间,我厂断断续续设计试制了多种型式的不停车调幅的机械振动台,但大都为螺旋套扇形块式和螺旋副-连杆-半月块式,当然都有其各自的优点,但其主要
I. Introduction I plant since 1958 the production of a variety of Soviet-style shaking table, of which the largest production, dominating those who Centrifugal fan-shaped table, the user almost all over the country. However, the biggest drawback of this type of vibrating table is that it is necessary to stop when adjusting the amplitude, then release the movable segments in the exciter and rotate a certain angle relative to the fixed segments to change the combined force of the centrifugal force of the two segments (ie, the exciting force) The size, so as to achieve the purpose of amplitude modulation. To solve this problem, in 1965-1975 years, I plant intermittent design and trial production of a variety of non-stop amplitude modulation of the mechanical shaking table, but most of the helical sleeve fan-shaped and helical-link - a half blocks , Of course, have their own advantages, but its main