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。

The paper reviews the process from ring chain type bucket elevator to plate chain bucket elevator and indicates the strength calibration of driving wheel axle.

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在滚锻时，圆的或是扁平的棒料放在模辊之间缩小横截面增加长度制成诸如轮轴、板簧之类的零件。

Roll forgings. In roll forging, a bar stock, round or flat is placed between die rollers which reduces the cross-section and increases the length to form parts such as axles, leaf springs etc.

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后来，我们再用胶水补好，冷却板也加了冰块，但是气密性的问题还没有解决，另外，凸轮轴也做得不够好。

Then, we glued it again, and added some ice on the cold copper of engine, but the problem of gas-tightness didn't be figured out. And, camshaft is not good enough.

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后来，我们再用胶水补好，冷却板也加了冰块，但是气密性的问题还没有解决，另外，凸轮轴也做得不够好。

Then, we glued it again, and added some ice on the cold copper of engine, but the problem of gas-tightness didn't be figured out. And, camshaft is not good enough.

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