6105发动机转子式机油泵设计

机械设计制造及其自动化论文，论文编号:JX1121  论文字数:13131.页数:33

摘     要
 机油泵的功用是保证润滑油在润滑系中循环流动，不能间断，并在发动机任何转速下都能以足够高的压力供应足够量的润滑油。前者表明机油泵应始终能吸到油，后者表明机油泵有压力调节装置。
 而传统的汽车发动机采取的齿轮式机油泵的缺点是需要中间传动机构，体积大，制造成本较高，供油不均匀等。由于机油泵是内燃机润滑系统的心脏，它的好坏直接影响内燃机的可靠性和耐久性。因此对转子式机油泵该课题的研究也将起到重大的意义。
 本论文介绍了对6105汽车发动机转子式机油泵的开发设计。而采用该机油泵能使机油泵在整个润滑系统里更好体现转子式机油泵其本身结构紧凑、吸油真空度高，泵油量大，效率高，供油均匀，成本低等优点。本文在查阅了许多相关文献资料并分析比较了国内外现有对机油泵技术的研究的优缺点基础上，确定了该设计方案并进行了相应的结构设计。
    本文通过对国内外现状的分析、方案设计、工作装置的结构设计以及零部件的设计与计算等多方面阐述了该新型机油泵的创新。
关键词：发动机；  转子式；  机油泵；  设计计算

 Abstract
 The function of oil pump is to make sure that lubricating oil keeps circulating in the lubrication system without discontinue and to have a pressure high enough to provide sufficient lubricating oil under any rotation rate of the engine. The former of the two purposes indicates that the oil pump can absorb the lubricating oil all the time and the latter indicates that the oil pump has a pressure regulation device.
 With regard to the gear type oil pump that used by traditional automobile engine, there are some disadvantages such as needing an intermediate driving gear, huge volume, high producing cost, and inhomogeneity of oil supply, etc. What’s more, the quality of the oil pump, which is the heart of the lubrication system of the internal combustion engine, as a result, directly affects the reliability and durability of the internal combustion engine. Therefore, it is of great importance to have a study on the rotor oil pump.
 This paper introduces the development and design of the rotor oil pump of 6105 engine. When this kind of rotor oil pump is used, many advantages of the rotor oil pump can be exhibited in the whole lubricating system, such as the compact structure, high vacuum degree of oil absorption, large amount of oil pumping, high efficiency, homogeneity of oil supply, low cost, no particular requirement for assembly position, acceptability of being assembled outside the crankcase or relatively high places of the oil absorption position, etc. The author of this paper has consulted a lot of relevant literature and made an analysis as well as a comparison of the Pros and Cons of the oil pump technology at home and abroad, basing on which the design scheme is established and the corresponding structure design is conducted.
  This paper expounds the innovation of this new type of oil pump through the analysis of the current situation at home and abroad, the design scheme, the structure design of the work device, and the designs and calculates of the components and parts.
 Keywords: engine；  rotor；  oil pump；  design and calculate

目  录
摘  要 Ⅰ
Abstract Ⅱ
目  录 Ⅲ
第一章  绪  论 1
1.1  引言 1
1.2 机油泵应用现状 1
1.3  转子式机油泵的应用 3
1.4  课题的提出与本文的主要内容 5
1.5  本章小节 6
第二章  方案的确定与比较 7
2.1  方案确定 7
2.2  传统机油泵的结构与工艺分析 7
2.2.1  传统机油泵的结构与工艺分析 7
2.2.2  工艺优化分析 8
        2.2.3 结构改进设计 9
       2.2.4 效果分析 9
2.3  本章小节 10
第三章  结构参数确定 11
3.1  结构参数确定 11
        3.1.1内转子参数的确定 11
       3.1.2外转子参数的确定 12
3.2  内外转子曲线的形成 13
          3．2．1内转子的曲线形成 13
        3．2．2 外转子的曲线形成 14
3.3  使用转子式机油泵注意的问题 15
3.4  本章小节 15
第四章  零件的设计计算 16
4.1 机油泵轴设计 16
4.1.1  机油泵轴结构设计 16
4.1.2  机油泵轴尺寸计算 17
4.1.3  机油泵轴强度的计算 19
       4.1.4 机油泵轴刚度的计算 24
4.2  键的计算 25
4.3  本章小节 25
第五章  总结与展望 26
结束语 27
参考文献 28
致谢 29