二辊矫直机改进设计+文献综述
时间:2018-04-01 20:37 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：本次毕业设计题目是二辊矫直机的改进设计（传动）。此毕业设计是对大学四年所学的基础知识和专业知识的综合利用。考虑到矫直机的实际性，现存的二辊矫直机，需要在耐用性、效率、重量、精度，或者成本上得到改善。伴随着世界科技的发展，国内外对矫直机的精度要求也越来越高。 在电机的选择方面，考虑电动机和传动装置的尺寸、重量和减速器的传动比，选择了型号为Y3-160m-4的电机。 在带轮的选择方面，为了提高工件精度，降低成本，保证矫直机的传动比，采用了同步带轮传动的方案。 在减速器的选择方面，为了保证传动的平稳，精确的传动比，工作的可靠性、高效性、寿命长，以及大扭矩的特点，采取了结构简单，齿轮位置不对称的展开式圆柱齿轮减速器为设计。高速级齿轮安插在远处转矩的输入端，能够使轴在转矩的作用下发生的扭转变形和轴在弯矩作用下发生的弯矩变形有一部分能相互抵消，以缓解沿齿宽载荷散布不均匀的征象。在齿轮改进方面，采用了斜齿圆柱齿轮，可以保证足够大的扭矩和准确的传动，对齿轮的材料、强度分别进行了选择和校核。同时，对轴的选择进行了计算以及校核。20426 关词：矫直机 传动 减速器设计 同步带轮 Two Roll Straightener improvement of the design (transmission) Abstract: The graduation project topic is two roll straightener improved design ( drive ) . The design is basic knowledge and expertise learned in four years of college design utilization. Taking into account the practical leveler , the existing two-roll straightening machine , you need to be improved in durability, efficiency , weight, accuracy , or cost. With the development of technology, precision straightening machine at home and abroad have become increasingly demanding . In the selection of the motor, gear ratio considering the size, weight and gear motor and transmission device , select the type of motor Y3-160m-4 's . In the choice of wheels , in order to improve the accuracy of the workpiece , reduce costs, ensure the transmission ratio leveler , using a timing belt wheel drive option. In the choice of reducer , in order to ensure smooth transmission, the transmission ratio accurate , reliable, high efficiency , long life, and a large enough torque , using a simple structure, gear position asymmetric expansion of cylindrical gear reducer design . Away from the high-speed stage gear arranged in the torque input shaft torque effect can produce torsional deformation and bending deformation partially cancel each axis bending moment produced in order to slow down the uneven load distribution along the width of the tooth phenomenon . Improvements in gear , using a helical gear , you can ensure a large enough torque and accurate transmission of material gear strength were carried out to select and check . Meanwhile , the choice of the axis were calculated and checked. Keywords : straightening machine design belt wheel drive reducer 目 录 中文摘要 Abstract 1 绪论 1 1.1 课题介绍 1 1.2 选题背景 1 1.3 设计目的与意义 1 2国内外矫直技术的发展概况（文献综述） 2 2.1 国外的发展情况 2 2.1.1 三菱重工矫直机 2 2.1.2 热矫直机 3 2.2 我国的发展情况 4 2.3 辊式矫直机的发展趋势 5 3 二辊矫直机工作原理 6 3.1矫直棒材的基本原理 6 3.2斜辊矫直机的分类 6 3.3斜二辊矫直机概况 6 3.4辊矫直机的工作原理 7 (责任编辑：qin) |