本课题主要是完成液压机的同步移动和同步转动部分设计，确定其参数，主要有电机扭矩的计算和电机的选择，带传动的设计，减速器的设计和丝杠螺母的选择。机械传动是本课题的主要部分。

Abstract
Hydraulic machine (aka: hydraulic machine) is a hydraulic machine to process metals, plastics, rubber, wood, powder and other products, machinery use hydrostatic pressure. Its principle is to use a lot of Pascal's Law made by the liquid pressure transmission machinery, species. Hydraulic presses hull manufacturing and vehicle manufacturing equipment commonly used, with all kinds of mold, processing the bow and stern of the double curvature of the outer panels, boards and corrugated outer wall of the single rate and other marine cold-formed parts. This press belongs to the frame press, it is with the overall steel plate welded into the frame bracket, pressure, formation can be adjusted according to actual needs, so overall good rigidity, high  strength, used in the hull, automobile vehicles body, stamping parts, molding. Unlike ordinary box-type press, the subject to be studied not only requires press table to be synchronized to move up and down but also synchronous rotation, rotation angle reaches 360 degrees, can be the weight of the steel sheet receiving area wider, steel suffered under Pressure is uniform. Mostly for pressing aboard, automobile bodies and other large device housing. 源`自*六)维[论*文'网www.lwfree.cn
The main topic is synchronous mobile and synchronous rotation part of the design, determine the parameters, there are select the motor torque computing and motor drive design is complete with a hydraulic machine screw nut reducer design and selection. Mechanical transmission is a major part of this project.
Keywords: synchronous transmission, mechanical transmission, motor torque

1 概述    1
1.1 液压机的简介    1
1.2 液压机的分类    1
1.3 国内外液压机研究现状    2
1.3.1国外液压机发展状况    2
1.3.2 国内液压机发展状况    2
1.3.3 国内振动压路机与国外的差距    2
1.4课题研究的目的与意义    2
2 5MN液压压机同步移动装置的介绍    3
2.1  5MN液压压机同步移动装置简介    3
2.2 5MN液压压机同步移动装置的主要技术参数    3
2.3各种传动方式的特点    4
2.3.1 机械传动    4
2.3.2 电气传动    4
3 5MN液压压机同步移动装置方案拟定    5
3.1 同步移动方案    5
3.1.1同步阀控制双液压缸实现同步    5