Improving of material, dimension, heat-treatment, construction form on the chain of bucket conveyor are introduced, then increase service life of bucket conveyor.
通过对斗式提升机链条的材质、尺寸、热处理、结构形式的改进，从而提高了其使用寿命。
2
The paper reviews the process from ring chain type bucket elevator to plate chainbucket elevator and indicates the strength calibration of driving wheel axle.
本文重点论述了环链式斗式提升机改造成板链式斗式提升机的过程及驱动轮轴的强度校核。
3
The well was in the back porch, broad and deep, with a bucket, chain, and windlass.