高压喷油泵试验台说明书

洛阳理工学院毕业设计（论文）

高压喷油泵试验台

摘 要

发动机的燃油系统是发动机的关键部分，直接影响着发动机的动力性能、经济性能和使用性能，其中喷油泵是该系统中关重要的部件，是燃油系统的核心，而喷油泵试验台是检测和调整发动机喷油泵所至必需的关键设备。

喷油泵实验系统被广泛应用在教学、科研及生产部门，成为我国喷油泵研究与制造水平的关键。喷油泵供油特性的测试（包括泵端压力、嘴端压力、针阀升程及喷油规律等）对喷油泵的生产与研究有着重要意义。喷油泵试验台是作为测试、调整喷油泵的专用设备。随着车型转换速度加快，柴油发动机转速提高，对喷油泵试验台的测量精度有更高的要求。直接影响柴油机的动力性、经济性和排放指标。因此，喷油泵试验台上零部件的设计及布局有一定的要求。

文中首先简要介绍了喷油泵实验系统的发展现状,然后主要对喷油泵试验台的各部分的零部件及传动方案进行分析设计。传统的喷油泵试验液面检测装置部在分使用时有一定的不断，本文对其液面检测装置进行了改进。本设计初期主要使用PRO/ENGINEER软件进行三维图形的设计。最后对试验台的精度的保证及使用时的维护做了简要的介绍。

关键词：喷油泵，试验台，发动机，供油特性。

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洛阳理工学院毕业设计（论文）

The Fuel Injection Pump Tester of High Pressure

ABSTRACT

Fuel oil system, directly affecting the power, economic and service performance of the engine is the key component of it. As the core of fuel oil system, oil vapor pump is essential. The test bed is the important equipment of detecting and adjusting the oil vapor pump of the engine.

The experimental system of oil vapor pump has been widely used in education scientific research and production department. It plays an important role m the study and manufacture of oil vapor pump. The injection pump feed characteristic test (including pump terminal pressure, mouth terminal pressure, needle lift and oil injection rule and so on) has the important meaning to injection pump's production and the research. The injection pump test platform does for the test, adjusts injection pump's special purpose equipment. Speeds up along with the vehicle type conversion rate, the diesel engine rotational speed enhances, has a higher request to the injection pump test platform's measuring accuracy. Immediate influence diesel engine's power, efficiency and emissions target. Therefore, in the injection pump test platform the spare part design and the layout have certain request.

First, the paper briefly introduces the current situation of development of the experimental system of oil vapor pump. It mainly carries on the analysis design to injection pump test platform's various parts of spare parts and the transmission plan. Traditional injection pump experiment liquid level detector set department when a minute use had certain ceaselessness, this article has made the improvement to its liquid level detector set. This design initial period mainly uses the PRO/ENGINEER software to carry on the three dimensional graph the design, and has carried on the exaggeration to the whole outward appearance. Finally has made the brief introduction to time the test platform precision's guarantee and the use maintenance

KEY WORDS: Injection pump, Test bed, Engine, Oil supply characteristic.

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洛阳理工学院毕业设计（论文）

目 录

前 言 ................................................................................................ 1 第1章 简述柴油机喷油泵试验台的原理和发展 ............................ 4

1.1 各种喷油泵试验台的原理 ................................................... 4 1.2 喷油泵试验台的类型 ........................................................... 5 1.3 喷油泵试验台的发展现状 ................................................... 7

1.3.1 国外喷油泵试验台的发展现状 .................................. 7 1.3.2 国内喷油泵试验台的发展 .......................................... 8 1.4 喷油泵试验台的发展趋势 ................................................. 10 第2章 喷油泵试验台的结构 ......................................................... 12

2.1 喷油泵试验台简介 ............................................................. 12 2.2 喷油泵试验台的整体结构 ................................................. 14 2.3 喷油泵试验台部分零件介绍 .............................................. 15

2.3.1 电机的选择和安装 ................................................... 15 2.3.2 机身 ........................................................................... 16 2.3.3 液面检测装置 ........................................................... 17 2.4 试验台上的部分重要零件 ................................................. 18 第3章 如何提高喷油泵试验台的精确度 ...................................... 20

3.1 传动系统对精度的影响 ..................................................... 20 3.2试验台供油系统对精度的影响 ........................................... 20 3.3 集油系统对精度的影响 ..................................................... 21 3.4 标准喷油器及高压油管对精度的影响 .............................. 22 3.5 喷油泵安装刚度对精度的影响 .......................................... 23 第4章 喷油泵试验台的维护 ......................................................... 24

4.1 日常维护 ............................................................................. 24 4.2 定期维护 ............................................................................. 26 4.3 常见故障 ............................................................................. 27 结 论 .............................................................................................. 28 谢 辞 ................................................................................................ 29

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洛阳理工学院毕业设计（论文）

参考文献 .......................................................................................... 30

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洛阳理工学院毕业设计（论文）

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