(毕业论文 字数:10520 页数:25 带图纸)摘要:轧钢机械或轧钢设备主要指完成由原料到成品这个轧钢工艺过程中使用的机械设备。一般包括轧钢机及一系列辅助设备组成的若干个机组。通常把使轧件产生塑性变形的机器成为轧钢机。轧钢机由机座、性能参数及主电机组成。这一机器系统称为主机列,也称轧钢车间主要设备。主机列的类型和特征标志着整个轧钢车间的类型及特点。除轧钢机以外的各种设备,统称轧钢车间辅助设备。辅助设备数量大、种类多。随着车间机械化程度的提高,辅助设备的重量所占比例就愈大。 轧钢机的标称有许多习惯称谓,一般与轧辊或轧件尺寸有关。 钢坯轧机和型钢轧机的主要性能参数是轧辊的名义直径,因为轧辊名义直径的大小与其能够轧制的最大断面尺寸有关。因此,钢坯及型钢轧机是以轧辊名义直径标称的,或用人字齿轮座齿轮节圆直径标称。当轧钢车间中装有数列或数架轧机时,则以最后一架精轧机轧辊名义直径作为轧钢机的标称。 应当指出,性能参数相同的轧钢机,采用不同的布置形式时,轧钢车间产品、产量和轧制工艺就不同。因此,上述轧钢机标称方法还不能全面反映各种轧钢车间的技术特征,还应考虑轧钢机布置型式。 关键词: 轧钢工艺 辅助设备 性能参数 技术特征 Summary A machine equipments that completes to be gone to the finished product this steel craft process by the raw material to use of the steel machine or the 轧 steel equipmentses.Include some machine sets that the steel machine and a series assistance equipmentses constitute generally.Usually become the steel machine of to the machine that makes a creation of transform.The steel machine is from the machine, spread to move to equip and the main electrical engineering constitute.This machine department knows together as the host row, also calling the car a main equipments of the steel.The type and characteristics of the host row symbolize the type and the characteristics between the whole steel cars.Various equipments that is in addition to the steel machine, know together as the car an assistance of the steel equipments.Lend support to the equipments quantity big, the category is many.Along with an exaltation that mechanizes the degree, the comparison that the weight of the assistance equipments have is more big. The mark of the steel machine calls many habit titles, general have something to do with the or a size of s. The main function parameter of the steel machine and a steel machine is the name diameter of the , because the size of the name diameter with it can the biggest cross section size of the system is relevant.Therefore, the steel 坯 and a steel machines call with the name diameter mark of, or call with the stanza a diameter of the word wheel gear a wheel gear of person mark.When have few row or several machines of s in the steel car, then being the mark of the 轧 steel machine to call with the last machine name diameter. Should point out, the function parameter same steel machine, adopt to arrange the form differently, the car a product, yield of the steel and the system craft dissimilarity.Therefore, the above-mentioned steel machine mark calls that the method can't still reflect the technique characteristic between various steel cars completely, should still consider the steel machine to arrange the pattern. 目录 第一章 引言——————————————————— 5 第二章 轧辊的尺寸参数 —————————————— 6 一、 轧辊名义直径和辊身长度的确定 二、 轧辊辊颈直径和长度的确定 三、 轧辊传动端的型式与尺寸 第三章 轧辊的材料及辊面强度———————————— 一、常用的轧辊材料 二、轧辊材料的选择及辊面硬度 第四章 轧辊的强度校核——————————————— 一、 有槽轧辊的强度校核 第五章 轧辊的变形计算 -----------------------——— 一、 简支梁法计算轧辊饶度 第六章 轧辊的调整装置 ---------------——————— 致谢 参考文献—————————————————————— 一 引言 轧辊是轧钢机的重要部件。按轧钢机类型分为板轧机轧辊和型钢轧机轧辊两大类 板轧机轧辊的辊身呈圆拄形 ,有时热轧板轧辊辊身微凹,当受热膨胀时,可保持较好的板形;冷轧板轧辊的辊身微凸,当他受力弯曲时,可保证良好的板型。型钢轧机轧辊的辊身上有轧槽,根据型钢轧制工艺要求,安排孔型及尺寸。 轧辊由辊身、辊颈和轴头三部分组成。辊颈安装在轴承中,并通过轴承座和压下装置把轧制力传给机架。轴头和联结轴相连接,传递轧制扭矩。轴头有三种主要形式:梅花轴头、万向轴头、带键槽的或圆拄的轴头。时间表明,带双键槽的柱头在使用过程中,键槽壁容易崩裂。目前常用易加工的带平台的轴头代替带双键槽的轴头。 直径超过400mm的冷轧轧辊,在锻造后,多半在中心镗一个直径为70到250的通孔。这样,一方面可使轧辊热处理后的内应力分布均匀,另一方面在轧辊表面淬火时,可对轧辊通水内冷,提高淬火效果。 |
350立辊轧机
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