2150四辊可逆粗轧机主传动系统毕业设计

2150四辊可逆粗轧机主传动设计

摘 要

2150四辊可逆粗轧机是现代热轧带钢轧机发展方向的重要标志，主要用于热轧带钢生产线的钢坯初轧，其工作能力直接影响产品的质量和产量。20世纪90年代以来热轧技术迅猛发展，对初轧机的要求愈加严格。本次设计根据鞍钢热轧厂的技术要求对2150可逆式粗轧机主传动系统进行设计，使电动机通过万向接轴直接带动工作辊转动。本文首先提出了课题的研究背景和意义，论述了轧钢机在国内外的发展现状，介绍了本次设计的内容和方法。重点是通过对轧制力、轧制力矩等主要参数的计算，选择合适的电动机，校核合格后对联接轴、联轴器进行选择和校核，此外还对一些零件进行设计，其中包括工作辊、支承辊尺寸参数设计，机架主要参数设计及校核。最后叙述了现代热轧轧机的润滑方式和特点、主传动系统的维护及故障诊断技术在轧机维护中的应用。

关键词 : 粗轧机；带钢热轧生产线；主传动系统

The Design of Main Driving System of 2150 4-rolls Reversing roughing Mill

ABSTRACT

The 2150 reversing rougher is the important attribution of hot strip rolling nowadays. It is used for slab cogging on the hot strip production line ，its work capacity influents directly to the product quality and output. During the 20th century, the 90th hot rolling technology is developed with a quite fast speed ，so the mill discipline is increasingly strict. This design is especially for the 2150 reversing rougher main transmission for the Angang Hot Rolling Plant according some specification, make the electromotor through universal joint spindle drive directly with the working roll. Firstly, this paper introduces the background and meaning of the topic, recite clearly of the rolling mill at home and abroad actuality，It also presents the content and means of this design. The main points are the calculation of the rolling force, rolling torque and some other main parameters, select the electromotor which can satisfy the volume, check the qualification, and then choose and check the coupling spindle and coupling, furthermore, we also design some part of the mill ,therein , include size parameter design of the working rolls and backing rolls ,major parameter of the strand design and check. At last, also recites the means of the lubrication and the feature of the rolling mill, application among that of main transmission attendance and trouble diagnosis technology at rolling mill. Keywords: roughing mill；hot strip rolling production line； main transmission

目 录

第一章 绪论 (1)

1.1、选题背景及目的 (2)

1.2、轧钢生产在国民经济中的主要地位与作用 (2)

1.3、国内外轧钢机械的发展状况 (3)

1.3.1粗轧机的发展 (3)

1.3.2带钢热连轧机发展 (3)

1.3.3带钢冷连轧机发展 (4)

1.3.4钢管轧机的发展 (5)

1.3.5线材轧机的发展 (5)

1.4课题的研究内容及方法 (6)

第二章 概述及方案选择 (7)

2.1设计的原始参数 (7)

2.2概述 (7)

2.3方案的选择 (8)

2.3.1总体思路的选择 (8)

2.3.2轧钢机主传动装置的类型 (9)

第三章 主要参数的确定 (10)

3.1轧制工艺 (10)

3. 2 轧辊材料及主要参数的确定 (10)

3.2.1初选轧辊材料 (10)

3.2.2轧辊参数确定 (11)

3.2.3工作辊和支承辊颈尺寸d和l的确定 (12)

3.2.4轧辊辊头的结构尺寸确定 (13)

3.3 轧制力的计算 (14)

3.3.1 计算变形阻力 (14)

3.3.2计算平均轧制力和总轧制力 (19)

第四章 电机的选择 (26)