装配图
摘要
本分析了摩擦试验机的现状和发展方向，详细介绍了摩擦实验机的工作原理以及在我国材料工程发展中的重要意义。
本次设计的摩擦试验机是模拟高速铁路运行时轮轨摩擦磨损的试验机。它是对环块式摩擦试验机的改进，主要有正压力加载系统、传动系统、控制系统三部分组成。本文将着重介绍其中的传动系统和压力加载系统。主机除了保留环块摩擦试验机的优点外，采用了更为稳定可靠的液压系统来进行正压力的加载，通过电动机带动主轴上的车轮旋转。压力是由液压系统通过液体工作介质驱动液压缸对试样加载压力。
该试验机能够在不同压力，不同速度情况下对摩擦材料的摩擦磨损性能进行试验。因此它将会是一些企业和科研机构对材料性能进行测试、产品性能检验的重要实验工具。
关键词：摩擦试验机；液压加载；加载系统；传动系统
ABSTRACT
This paper analyzes the present situation and the developing direction of friction testing machine, friction testing machinewas introduced in detail theworking principle and important significance in the development of materials engineering in our country.
The friction tester of this design is a test machine that simulates the frictionwear of high-speed railway. It is an improvement of the ring friction test machine,which mainly consists of three parts of the positive pressure loading system, transmission system and control system. This article focuses on the transmission system and the pressure loading system. Host in addition to the advantages of retaining ring piece of friction testing machine, have adopted a more stable and reliable hydraulic system for positive pressure load, through the motor drives thewheels on the spindle rotation. The pressure is driven by the hydraulic system through the liquidworking medium and the hydraulic cylinder is applied to the sample loading pressure.
The test machine can test the frictionwear properties of the friction material under different pressure and speed. Therefore, itwill be an important laboratory tool for the testing and testing of material performance by some enterprises and scientific institutions.
keywords：Friction tester; Hydraulic loading; loading system; transmission system
目录
1绪论1
1.1选题背景及意义1
1.2摩擦试验机及其分类1
1.3摩擦试验机发展现状2
1.4本主要研究内容3
2总体方案的设计4
2.1设计要求4
2.2主要设计参数4
2.3摩擦试验机的总体方案的设计5
3试验机主要系统的设计5
3.1传动系统的设计5
3.2传动系统的确定6
3.3加载系统的设计6
3.4加载系统的确定7
4摩擦试验机的设计计算7
4.1传动系统7
4.1.1工作压力的计算7
4.1.2试验机电机选择9
4.1.3主轴设计，校核以及联轴器选择11
4.2液压系统的设计15
4.2.1液压缸的设计15
4.2.2液压泵19
4.2.3液压控制元件20
4.2.4液压辅助元件20
4.2.5液压工作介质的选择21
4.2.6夹具22
总结23
致谢24
参考文献25
设计目录
设计字数统计
凸缘联轴器
英文摘要
支架
中文摘要
轴
轴承座
