大容积无缝气瓶淬火炉改造方案
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摘要
大容积无缝气瓶淬火过程中,炉子外壁热负荷情况下的不均匀变形造成V型辊道上表面高低不平或倾斜,淬火炉采用串联的多级链传动,使辊子相对于大气瓶有相对滑动。在气瓶与V型炉辊接触的部位,气瓶表面会发生划痕。本文分析了划痕产生的主要原因,对淬火炉提出了改进措施,通过设计独立支架,使V型辊道与炉体分开,同时,将淬火炉分成加热区和保温区两个部分,分别由两个电机驱动,增加T系列螺旋伞齿轮转向箱,保证各V型辊道的同步运行。改造后,淬火炉运行状况良好,大大减小了V型辊和大气瓶的磨损,划痕已基本消除。
During quenching of large-capacity seamless gas cylinder, because of the non-uniform deformation of the hardening furnace outer surface under the thermal load, the upper surface of V-rollers is uneven or inclined. The hardening furnace adopts multi-stage chain drive, it makes the relative slip between the roller and the gas cylinder, and there are scratches on the cylinder surface contacted with V-type roller. This paper analyses the main causes of scratches and puts forward improvement for hardening furnace. V-type roller table is separated from furnace body through designing an independent steel frame. Meanwhile, the furnace is divided into heating zone and heat preservation zone, driven by two motors respectively, and spiral bevel gear T-steering box is installed to ensure V-rollers synchronous rotation. The quenching furnace works well after reformed, the wear of V-roller and cylinder has been greatly reduced, and the scratches have been basically removed.
During quenching of large-capacity seamless gas cylinder, because of the non-uniform deformation of the hardening furnace outer surface under the thermal load, the upper surface of V-rollers is uneven or inclined. The hardening furnace adopts multi-stage chain drive, it makes the relative slip between the roller and the gas cylinder, and there are scratches on the cylinder surface contacted with V-type roller. This paper analyses the main causes of scratches and puts forward improvement for hardening furnace. V-type roller table is separated from furnace body through designing an independent steel frame. Meanwhile, the furnace is divided into heating zone and heat preservation zone, driven by two motors respectively, and spiral bevel gear T-steering box is installed to ensure V-rollers synchronous rotation. The quenching furnace works well after reformed, the wear of V-roller and cylinder has been greatly reduced, and the scratches have been basically removed.
引文
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[3] 才鸿年,马建平.现代热处理手册[Z].北京:化学工业出版社,2009.
[4] 许亚军.减少辊底式热处理炉辊面结瘤的措施[J].科技创新与应用,2015(02):36-37.
[5] 汪中厚,周小玲.螺旋锥齿轮动力学研究方法及进展[J].中国机械工程,2006(11) 1203-1208.
[6] 张小虎.高压无缝钢瓶热处理规范的探讨和验证[J].矿业安全与环保,2005(12):38-39.
[7] 孙咏梅,黄贞益.35CrMo钢质无缝气瓶的热处理工艺研究[J].机械工程师,2009(08):37-38.
[8] 周海成.钢制无缝气瓶标准评述[J].压力容器,1991(12):9-16.
[9] 国际标准ISO11120,1999水容积为150L-3000L可重复使用的无缝钢瓶的设计、制造和试验[S].
[10] 邹建立,金瑾.高压无缝钢质气瓶旋压成型工艺[J].金属加工(热加工),2014,16(22) 188-192.
[11] 朱卫波,马福全.V型辊道输送机设计及研究[J].制造业自动化,2018(02):92-93,98.
[12] 江华,吴启明.辊底炉炉辊结瘤现象及辊印控制[J].中国科技财富,2010(16):78-78.
[13] 刘伟.辊底式热处理炉炉底辊损坏形式分析及处理[J].云南冶金,2014,43(02):85-89.
[14] 安丰辉,赵显鹏,吴俊平.辊底式热处理炉炉辊结瘤分析与对策[J].金属热处理,2017(01).
[15] 白公民.辊底式淬火炉的改造[J].金属加工(热加工),2013(S1):75-76.
[16] 余启江.辊底式退火炉的炉体改造[J].钢管,1995(01):44-45.
[17] 戴进涛.板簧辊道式淬火炉传动系统的改造[J].鄂钢科技,2009(03):22-23.
[18] 雷钧皓,李媛媛,胡冠群.辊底式热处理炉辊面结瘤原因分析与控制[J].宽厚板,2017(04).
[19] 张玉庭.机械零件选材及热处理设计手册[M].北京:机械工业出版社,2014.