本文探讨筛下空气室跳汰机和侧鼓式跳汰机的洗水自振频率受哪些因素影响问题。先列出洗水动平衡水位即强迫振动平衡水位时的自振微分方程式以求出其自振频率。此外,跳汰室的水位总是比空气室的水位高,这种水位高差就使洗水发生自振。对侧鼓式跳汰机(图1)来说,水位高差可按下述计算求得。强迫洗水振动的微分方程式如下: This article explores the factors that affect the natural frequency of washing water in the air chamber jig and side jib jig under the sieve. The first is to list the dynamic equilibrium water level that forced vibration equilibrium water level when the natural vibration differential equation to find its natural frequency. In addition, the water level in the jig is always higher than the water level in the air chamber, and this water level difference causes the water to spontaneously vibrate. Opposite drum jig (Figure 1), the water level difference can be calculated as follows. The differential equation forcing water washing vibration is as follows: