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曲轴滑动式偏心振动筛简便易用,造价低,因而被广泛用于中小型铸造车间的新、旧砂和辅助材料的少量筛选。振动筛的筛框由四个小轮支撑在机架的导轨上(如图)。由于偏心距的作用,使小轮的轮缘在滚动中仅受局部摩擦,加上扬出的砂尘的影响,导致小轮呈不规则的椭圆形磨损,造成小轮与机架导轨产生较强的往复撞击振动噪声,在装料少或空载
Crankshaft sliding eccentric shaker easy to use, low cost, which is widely used in small and medium-sized foundry new, old sand and a small amount of auxiliary materials screening. Shaker sieve frame supported by the four small wheels on the rack rail (Figure). As a result of eccentricity, the wheel rim of the small wheel is only affected by the local friction during the rolling, and the influence of the raised sand dust results in the irregular elliptical wear of the small wheel, resulting in the stronger strength of the small wheel and the rack guide rail The reciprocating impact vibration noise, with little or no load