摘要薄壁不锈钢水管卫生耐用，外表精美，环保节能，已被国内外工程界所公认。传统的不锈钢水管以螺纹连接为主，近年来有被卡压连接取代的趋势，卡压连接具有快速、方便、可靠的优点，尤其在薄壁管道之间。液压钳由于具有单位重量输出功最大的特点，成为卡压连接工具的首选形式，为了使操作简单方便，缩短工时，减少造价，故有必要设计一款便携式卡压工具来进行不锈钢水管的卡压连接。该液压卡压钳操作方便，灵活省力，结构紧凑，工具总重量不超过15kg，出力可以达到40KN，压缩量为0.6-1mm，能适用于25MPa以下的中低压系统的卡压连接。本设计使用二级齿轮减速器进行减速，并采用液压系统进行传动，实现卡压。本文将对其结构及原理做一些分析，并对其设计步骤和要点进行了介绍。49539

毕业论文关键词：液压钳；卡压连接；管道；

 Abstract Thin stainless steel pipe have the feature of health and durable，Elegant appearance, protect the environmental and saving the energy.Both domestic and overseas in engineering have been recognized it.The traditional stainless steel pipe give priority to threaded connections .In recent years it has been provided to replace by the trend of connection.Press-fitting has the advantages of fast connection, convenient, reliable and so on.Especially in the thin wall pipe.The hydraulic clamp has the characteristics of the unit weight has the largest output power, and it become the first tool in  the viega profi-press connection tools.In order to have simple and convenient operation, shorter hours, reduce cost.It is necessary to design a portable press-fitting tool to make stainless steel pipes of provided connection.The hydraulic press-fitting have the feature of clamp convenient operation, flexible energy and compact structure.The tools total weight at most 15 kg，the output can reach 4000 KN，compression for 0.6 -1 mm，it can be used to the low-pressure system in around 25 MPa. This design using level two gear reducer to slow down the speed, and by using the hydraulic system to transmission，in order to make the the viega profi-press realization. In this paper, there are some analysis about the structure and principle ，and some of the design steps and points are also introduced.

Keywords: Hydraulic clamp; provided links; pipeline;

 目 录

第一章 绪论 1

1.1 研究背景 1

1.2 研究的目的的意义 1

1.3 国内外研究现状 1

1.4 本文主要内容 2

第二章 本研究内容的总体方案 3

2.1 液压传动系统原理图的设计 3

2.2 减速机构总体方案设计 3

第三章 电动机的选择 5

3.1 电动机类型的选择 5

3.2 电动机功率的选择 5

3.3 电动机转速的选择 5

3.4 电动机型号的确定 5

第四章 液压系统中各元件的选择与计算 6

4.1 液压缸的设计与计算 6

4.1.1 液压缸材料的选择 6

4.1.2 液压缸内径的确定 6

4.1.3 活塞杆直径的确定 6

4.1.4 液压缸形成S的确定 7

4.1.5 缸筒壁厚的计算