摘要在高压、高速、大功率的制造行业，由于液压技术、控制理论、微型计算机、测量测试技术、数字信息处理、可靠技术的发展，使得机、电、液一体化的设备在整个机械设备中所占的比重越来越大。液压试验台作为一种检测液压元件的必须设备，可对液压泵、液压马达、液压阀等各种液压元件进行测量，在众多领域得到了广泛应用。50799

作为液压传动的执行元件之一的液压马达，，其产品质量直接影响整个系统的性能。因此，对液压马达的性能进行精确的测试，是辨别产品优劣、保证系统性能、改进结构设计、提高工艺水平、促进产品升级的重要方法。

本次设计的主要任务是针对液压马达测试台的性能要求，完成测试台自动装夹系统的设计，使其能够实现对液压马达的紧固或移动。本文首先介绍了液压与气压技术及液压测试台的国内外研究现状，其次针对液压测试台的机械结构、自动夹紧气动系统、电气控制系统进行了分别的设计说明，完成了自动装夹系统的设计。

毕业论文关键词：液压与气压传动；液压马达；机械结构；电气控制

 Abstract In the high-pressure, high-speed, high-power manufacturing industry, because of the hydraulic technology, control theory, a microcomputer, test and measurement technology, digital information processing, reliable technology, making the mechanical, electrical, hydraulic equipment integrated in the entire mechanical equipment accounting for the proportion is growing. Hydraulic test stand,as a detection device of hydraulic components, can be used to measure the hydraulic pumps, hydraulic motors, hydraulic valves and other hydraulic components ,and it has also been widely used in many fields.

Hydraulic motors, as one of hydraulic actuator, its product quality directly affect the system performance. Therefore, the accurate testing of the hydraulic motor is to identify strengths and weaknesses, improving structural design, improve the technological level, to ensure system performance and an important way to promote product upgrades.

The main task of the design is to complete the test automatic clamping system based on hydraulic motor performance requirements so that it can achieve the hydraulic motor fastening or moved. This paper describes the technology of hydraulic and pneumatic and hydraulic test bench research status, followed by hydraulic test bench for the mechanical structure, automatic clamping pneumatic system, electrical control system were discussed respectively,and completed the automatic clamping system design eventually.

Keywords: Hydraulic and pneumatic transmission；hydraulic motor；physical construction；electric control

目  录

第一章  绪论 1

1.1 课题研究意义 1

1.2 液压与气压传动的概况 1

1.2.1 液压与气压传动技术的进展 1

1.2.2 液压与气压传动的特点 2

1.3 液压测试台概述 4

1.3.1 液压测试台的国内外现状 4

1.3.2 液压测试台的存在问题 5

1.4 本次设计的主要任务与主要内容 5

第二章  自动夹紧系统的机械结构设计 6

2.1 机械结构部分的整体分析 6

2.2 主要组成元件的选择 6

2.2.1 液压马达的特点和分类 6

2.2.2 磁粉制动器的选择