设计描述：

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φ650粗轧机设计
摘  要
   线材的用途很广，在国民经济各个部门中，线材占有重要地位。近年来，对线材性能及表面质量的要求越来越高。尤其是对线材的化学成分、机械性能、晶粒组织及晶粒粒度都要做检验，符合标准方可出厂。所以，对线材的苛刻要求决定了新轧机及相关新技术的飞速发展。线材轧机属于小型轧钢机械范畴。线材轧机与其它轧钢机一样，其主机列也包括执行机构、传动装置、和原动机三个基本组成部分。本次设计在收集整理了国内外先进的线材轧制设备和技术的基础上，对设计方案进行了优化选择。首先，根据压下规程和轧制速度计算轧制力和轧制力矩，对电机进行选择、校核。然后对于主要零部件进行了受力和强度分析、校核；对于主传动装置中的减速器进行了设计，同时对润滑式进行了选择。

关键词：线材轧机；轧制力；轧制力矩；强度；主传动

The Design ofφ650 Bar and Wire Rod Mill
Abstract
As the use of wire rod is very broad, in every department of national economy, wire rod possess important position. In recent years, for the requirement of the surface quality and performance of wire rod, it is more and more higher.So many parameters to be inspected, especially for the chemical composition ,mechanical performance, crystal microscopic organizes and crystal microscopic size of wire rod, accord with standard side can be sold out. So new rolling mill and related new technology should be developed fast for the harsh requirement of wire rod. The rod mill belongs to the small steel rolling category. The rod mill is same with other mills, its main engine row also includes the implementing agency, the transmission device, and the driving force three basic building blocks. This design in the collection reorganized the domestic and foreign advanced rod rolling equipment and in the technical foundation, carries on the choice and the appraisal to the design proposal. First, according to assigns depresses the regulations and the rolling speed computation roll force and the roll torque, and has carried on the choice and the examination to the electrical machinery. Then, has carried on the stress analysis and the essential examination regarding the main spare part. Regarding main drive's in reduction gear, the shaft coupling, the rotary coupling spindle have carried on the design, simultaneously has carried on the choice to the lubrication way. Finally, carries on the analysis appraisal to this rolling mill's economic efficiency.

Key words: wire rod rolling mill; roll force ; roll torque; intensity; main drive

目录
1 绪论 1
1.1轧钢生产发展背景 1
1.2 中小型型钢发展趋 2
1.4轧辊调整在轧钢过程中的重要性 4
1.5 课题研究的内容及方法 4
2方案设计评述 6
2.1轧机布置形式的选择 6
2.2轧机零件的选择 6
2.2.1机架的结构选择： 6
3轧制压力和轧制力矩的计算 8
3.1孔型的选择 8
3.1.1箱－圆－椭圆－圆孔型系统的特点 8
3.1.2轧制参数的确定 9
3.2轧制力的计算 9
3.2.1第一轧制道次平均单位压力计算 9
3.2.2轧制总压力的计算 11
3.2.3轧制力矩的计算 13
4轧机主电机力矩与电动机功率 14
4.1轧机主电动机力矩 14
4.2轧辊驱动力矩 14
4.3初选电机容量 16
4.4附加摩擦力矩 17
4.5电机校核 18
5轧辊与轧辊轴承 20
5.1轧辊的选择与强度的校核 20
5.1.2轧辊的强度校核 20
5.2轧辊轴承 24
5.2.1轴承的选择 24
5.2.2轧辊轴承的计算 24
6机架强度的计算 26
6.1机架的结构设计 26
6.2机架的强度计算及校核 26
7减速器的设计 30
7.1计算各轴的动力参数 30
7.2齿轮的设计 31
8系统的润滑 37
8.1润滑需要注意的事项 37
8.2常用的润滑剂的特点 37
8.3润滑方式的选择 37
结束语 38
致   谢 39
参考文献 40