Addition of Active Roller Device to Decoiler of SAWH Pipe Production Line
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摘要: 螺旋缝埋弧焊管生产过程中经常出现开卷机的铲刀油缸摆臂断裂故障，严重影响了焊管机组的作业率。分析认为：该故障产生的原因是当卷板板尾脱离锥头后，在较大的反弹力作用下板尾对铲刀形成严重的冲击而造成。提出在开卷机处加装活动辊轮，以减小板尾的反弹半径，从而避免板尾反弹时对铲刀的冲击，降低设备故障率，提高焊管机组作业率。Abstract: As a failure，breaking of the scraper hydraulic cylinder swing arm is frequently encountered with during the operation of the SAWH pipe production line，which seriously affects the operation efficiency.Based on relevant analysis，it is identified that the failure is caused in the event that when the steel strip tail-end gets out of the conical head，due to a significant rebound of the tail-end，a strong impact is produced，and imposed upon the scraper， which leads to the breaking of the cylinder swing arm.Accordingly， it is proposed to get the decoiler equipped with an active roller to reduce the rebound radius of the strip tail-end so as to avoid the impact thereby upon the scraper.As a result，the failure rate of the equipment will be in turn reduced，and the operation efficiency of the pipe production line enhanced.
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Keywords:
- SAWH pipe /
- coil steel /
- decoiler /
- strip tail-end /
- scraper /
- hydraulic cylinder swing arm /
- active roller
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