摘要：连铸技术一直处于高速发展中，与传统的钢锭模浇铸相比而言，连铸具有更为突出的经济性能。在生产制造的过程中，振动装置通过不间断地振动来带动结晶器上下振动，使钢水混合更为均匀，晶粒变小变细，排除液态金属中的气体，提高铸坯的表面质量等。本文主要结合连铸结晶器振动技术的发展与现状，对实现在线无级变速进行了设计与研究。设计了杠杆式结构的振动装置，使用力矩电机驱动，经联轴器带动偏心轴转动，利用偏心量部分约束了连杆的自由度，使其只能上下平动。在杠杆中间利用齿轮齿条结构进行对于杠杆支点的改变，从而达到变换振幅的功能。本次设计对偏心轴与齿轮轴进行了严格的设计计算及校核，并根据原始数据要求对动力参数进行了计算验证，轴承、紧固件等部件也根据轴的尺寸进行选型校核，经验证各部件切实可行，可以实现预期要求。

关键词： 结晶器；连铸；振动装置；无级变速

Design of Continuous Casting Mold Vibration Device

Abstract: Continuous casting technology has been in rapid development. Contrary to the traditional casting of ingot molds, continuous casting has more outstanding economic performance. During the manufacturing process, the vibrating device drives the crystallizer up and down to vibrate by uninterrupted vibration, so that the molten steel is mixed more uniformly, the crystal grains become smaller and thinner, the gas in the liquid metal is eliminated, and the surface quality of the cast billet is improved. This project mainly designs and researches the realization of on-line continuously variable transmission by considering the development and status quo of continuous casting mold vibration technology. A lever-type vibration device was designed. It was driven by a torque motor, and the eccentric shaft was rotated by the coupling. The degree of eccentricity limited the freedom of the connecting rod, so that it could only move up and down. In the middle of the lever, the rack and pinion structure is used to change the lever fulcrum so as to achieve the function of changing the amplitude. In this design, the design and calculation of the eccentric shaft and the gear shaft were strictly carried out, and the dynamic parameters were calculated and verified according to the original data requirements. Bearings, fasteners, and other components were also selected and checked according to the size of the shaft. After verifying that all components are feasible, the expected requirements can be achieved.

Keywords: Crystallizer; Continuous Casting; Vibration Device; Continuously Variable

目录

1. 绪论 1

1.1 连铸的发展历史 1

1.2 连铸的主要流程 2

1.3 连续铸钢的特点 2

1.4 振动技术的发展 3

1.5 连铸机机型的分类 3

1.6结晶器振动规律的演变 3

1.6.1 矩形速度规律 4

1.6.2 梯形速度规律 4

1.6.3 正弦振动速度规律 4

1.7结晶器的润滑机理 5

1.8 振动机构的种类及发展 6

1.8.1 短臂四连杆振动机构 6

1.8.2 四偏心振动机构 6

1.8.3 液压振动机构 6

2. 传动方案的拟定及动力参数计算 6

2.1现有振动装置分析与研究 6

2.2偏心机构的种类 7

2.2.1. 曲柄滑块机构 7

2.2.2. 非圆齿轮机构 7

2.3驱动及传动方案拟定 8

2.4执行方案 11

2.5机构的动力参数计算 11

2.5.1 杠杆受力分析 11

2.5.2 齿轮轴受力分析 12

2.5.3 齿轮轴电机选型： 13

2.5.4 振幅计算 14

2.5.5 调整齿轮位移计算 16

2.5.6 整理计算 17

3. 结构设计及校核 18

3.1 总体结构设计 18

3.2偏心轴机构设计 19

3.3杠杆齿轮齿条机构设计 20

3.4 齿轮轴齿条的参数设计 21

3.5 齿轮轴的设计校核 22

3.6 偏心轴结构的设计 26