但弯板链比直板滚子链的结构复杂，使得弯板链的链板数值计算和数值模拟比较困难。
The construction of offset drive chain is complicated in comparison with the ordinary roller chain. So it is difficulty to make the numerical calculation and numerical simulation.
由于NE板链斗式提升机下部装置经常出现轴承损坏，下部装置大量漏料，直接影响设备正常运行。
For bearing damage occur frequently of NE plate chain lifts under part device, cause mass leakage in the lower part influence straightly normal function of the equipment.
分析了sgd—2 0 B型刮板输送机刮板链中链条及刮板的不合理处，采取了改进措施，取得了良好的效果。
This paper analyses unreasonable place of the scraper chain and scraper of sgd-20b type scraper conveyor. Improving way is adopted and the effect is very good.
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