The scheme of adopting chain drives to replace double-rockers mechanism used on automatic water-spraying device for planar fine sieve is introduced.

• 提出了一种用链传动代替平面细筛自动喷水装置的双摇杆机构的设计方案,介绍了用链传动实现往复运动的原理和解决运动冲击的办法。