机械毕业设计1482小型卷板机设计

摘要

本设计是关于小型对称式三辊卷板机的设计，主要对卷板机上、下辊及减速器进行设计和计算。

卷板机是一种将金属板材卷弯成筒形、弧形或其他形状工件的通用设备。根据三点成圆的原理，利用工作辊相对位置变化和旋转运动使板材产生连续的塑性变形，以获得预定形状的工件。为提高卷板机的工作效率，提高制品的加工精度，减轻劳动强度，改善工作条件，通常采用板料送料工作台、辅助操作机械、托架平台以及支承滚道等辅助设备。卷板机作为一个特殊的机器，它在工业基础加工中占有重要的地位。凡是钢材成型为圆柱型，几乎都用卷板机辊制。该产品广泛用于锅炉、造船、石油、化工、木工、金属结构及其它机械制造行业。

设计前部分详细阐述了卷板机上、下辊结构设计和受力分析。板机结构型式为三辊对称式, 在该结构中上辊下压提供压力,两下辊做旋转运动,为卷制板材提供扭矩。它具有结构简单、体积小、重量轻、经济、等优点。动力源则选择了YZ系列YZ160L—6型电机，其工作特性优于Y系列电机，适用于有轻微震动，正反转且转速不高的场合。

总体设计后部分所涉及的减速器采用了三级展开式圆柱齿轮结构。齿轮材料为40Cr，并经调质及表面淬火。校核齿轮、轴、键、轴承确保了设计的实际可行性。

关键词: 卷板机；电动机；减速器；键；齿轮

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Abstract

This design is about the three-roller symmwtry rolling machine,mainly calcats the up and down roller and the decelerator.

Roll trigger a sheet metal bending roll into the cylindrical, arc or other shape the universal equipment. According to the principle of into round three, use of work roll change and the relative position of the rotary motion to produce continuous plastic deformation plank, scheduled for the shape of the workpiece. In order to improve the efficiency of the roll triggers, improve the machining precision of the products, reduce labor intensity, to improve the working conditions of the sheet metal, usually by lateral table, auxiliary operation machinery, bracket platform, as well as supporting groove and auxiliary equipment. Roll trigger as a special machine, it in the industry foundation processing occupies an important position. All steel cylinder, forming for almost all roll trigger roller system with. The products are widely used in the boiler, shipbuilding, petroleum, chemical industry, carpentry, metal structure and other mechanical manufacturing industry.

During the front process of the design,the rolling machine`s structucre design and the analysis of strength are described. The rolling machine` structure is

three-roller symmetry. Pressure provides pressure under owing structure the

above-average roller , the roller does revolution sport under two , sheet material provides moment of torsion to roll of system.It has a series of advantages such as simply structure,small volume,light weight,economical and so on.YZ type

YZ-160L-6 motor is selected as the power source,which adapts situation such as slience quenching and light reverse velocity.

The last part of the paper is ahout decelerator which is choosing triple expanding columm gear constiuction .The material of gear is 40Cr which has been hardening surface.The gears, axes, keys, bearings are checked, so to confirm this design is practical

Keywords: Rolling machine；Motor；Decelerator；Key；Gear

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