250线材轧机的设计【3张图纸】【优秀】【Word+CAD全套设计】

250线材轧机的设计

摘   要

设计的轧钢机为250×3型钢轧钢机，轧辊的直径为250 mm。轧钢机主要用来为轧制小型线材，采用三辊式工作机座。轧钢机的主要设备是由一个主机列组成的。轧钢机的主机列是由原动机，传动装置和执行机构三个基本部分组成的。采用的配置方式为电动机——减速机——齿轮机座——轧机。由于轧辊的转向和转速不可逆转，原动机采用造价较底的高速交流主电机。考虑到轧制负荷很不均匀，为了均衡电机负荷，减少电机的容量，在减速机和电动机之间加有飞轮。齿轮机座：其用途是传递转矩给工作辊，设计采用三个直径相等的圆柱形人字齿轮在垂直面排成一排，装在密闭的箱体内。联轴器：在减速器与齿轮机座之间采用的是安全连轴器。而主联轴器采用的的梅花接轴联轴器。

关键词：　轧钢机，齿轮机座，飞轮

250 Design of wire rod mill

Abstract

Rolling mill designed for 250 x 3 payments rolling mill, roller diameter of 250mm. Rolling mill for rolling mainly to small wire rod, a three roller-working machine Block. Rolling mill equipment is a major component of the mainframe out. Rolling mill is the former mainframe is motivated transmission devices and the three basic components of the implementing agencies. Allocation method used for electric motors -- slowdown plane -- plus seat -- rolling mill.The roller to the irreversible and rotational speed, the original motivation for the introduction of a more rapid exchange of the costs of Electrical. Taking into account the rolling load is uneven, to balance electrical loads and reduce the electrical capacity slowdown in the increase between a flywheel and electric motors. Flywheel design and installation of electric motors in decelerator between its role in the adoption roller and roller idling, a mobile storage device in a balanced transmission loads; gear seat : its purpose is to transmit torque to the work revolve, the equivalent diameter cylindrical design used three words plus people lined up in the vertical plane, packed in sealed .Shaft coupling : in the Block reducer and gear is used between security company axle vehicles.

Key words：Rolling mill ，gear seat ，flywheel

目录

1 绪论1

1.1轧钢机的定义1

1.2轧钢机的标称1

1.3轧钢机的用途1

1.4小型轧钢机的主机列2

2 轧制压力和轧制力矩的计算5

2.1轧制平均单位压力的确定5

2.2轧制总压力的确定7

2.3轧制力矩的确定8

2.4电动机的选择8

3 飞轮的设计9

3.1飞轮力矩的确定9

3.2飞轮的强度的校核11

4 减速器的选择13

4.1传动比的计算13

4.2减速器的特点、破坏形式14

4.2.1主减速机的特点14

4.2.2主减速机齿轮的破坏形式14

4.3主减速机的结构15

4.4 主减速器的润滑及防护措施15

4.5 齿轮的材料和热处理16

4.6减速器的工作状态分析16

５齿轮机座的设计17

5.1齿轮机座的类型和结构17

5.2齿轮的设计17

5.2.1齿轮节圆的直径17

5.2.2 模数、齿数、齿宽、齿顷角17

5.2.3计算力矩的确定18

5.2.4轴端的强度计算19

5.2.5滑动轴承19

5.3密封和漏油问题19

5.4齿轮机座的润滑20

５.5齿轮机座的总述20

6 轧钢机工作机座的设计21

6.1工作机座的选择21

6.2轧辊与轧辊轴承的设计22

6.2.1轧辊的类型22

6.2.2轧辊的结构22

6.2.3轧辊的参数23

6.2.4轧辊的材料23

6.3轧辊调整装置的设计25

6.4机架的设计27

6.5机架强度的校核28

7 孔型的设计31

8 机架的优化设计33

8.1优化分析33

8.2 轧机机架结构参数优化设计的数学模型33

8.3 设计变量34

8.4 目标函数36

8.4.1以机架在垂直方向上弹性变形最小作为目标函数36

8.4.2 以机架重量最轻为目标函数38

8.4.3 机架变形38

8.5 约束条件38

8.5.1 性能约束38

8.5.2边界约束39

8.6计算结果及分析39

8.6.1设计变量的数量及取法对设计量取值的影响39

8.6.2 以机架变形最小为目标的优化计算40

8.7 优化设计应用举例41

8.8 优化设计在实际中的应用43

8.9 结论45

结论46

致谢47

参考资料48

附录149

附录257