IMPROVEMENTS IN VIBRATOR ASSEMBLIES OF STRAIGHTLINE OR ELLIPTICAL THROW TYPE VIBRATING EQUIPMENT HAVING TWO CONTRA-ROTATING SHAFTS MOUNTED WITH ECCENTRIC WEIGHTS

摘要

In straight line or elliptical throw type vibrating equipment having two contra-rotating shafts mounted with eccentric weights, an improvement in vibrator assembly, compressing a non-vibrated heavy duty gear-box with an input shaft driven by a motor and two output shafts rotating in opposite directions, from which drive is taken through pulleys and belts driving corresponding driven pulleys mounted on the vibrating equipment, the latter pulleys transmitting the drive to the two contra-rotating shafts of the vibrating equipment, on which arc mounted a pair of light duty gear-wheels meshing with each other and which prevent the two driven shafts from going out of phase with respect to each other due to belt slippage