随着产品微型化趋势的加强和现代加工技术的迅猛发展，国内外专家和学者对微成形技术展开了广泛而深入地研究，其理论与技术不断被发明和创新，并走向成熟。 微成形技术也被应用于军 工 领域，尤其是引信 技术 。本文研究对象为微型无返回力矩钟表机构。通过运动及动力学理论对钟表机构在火炮发射过程中的运动及受力情况进行分析，完成 了 钟表机构的总体设计；通过 SolidWorks 建立钟表机构中各零件的三文模型并完成其装配 ； 通过 Adams 进行运动及动力学仿真，对整个机构的运动进行模拟，并分析机构各零件在发射过程中的运动情况；通过 Ansys LS-DYNA 对机构中的齿轮进行强度分析，分析其在受到发射过载情况下齿轮面应力应变的变化。通过对该机构的分析研究确定其在发射过程中运动的可靠性和零件强度的安全性，最终证明设计出的钟表机构符合技战术要求 ， 为以后 小型 钟表机构的设计提供参照。9602
关键词 ：微成形、引信、钟表机构、仿真、齿轮强度分析The Research on the Mechanical Properties of The
Microminiature Clock Mechanism
Abstract Abstract Abstract Abstract
With the strengthening trend of the product-miniaturization and the rapid
development of modern processing technology, domestic and international
experts have done some widely and deeply researches on the micro-forming
technology. With t he theory and technology being constantly invented and
innovated, it becomes mature. Micro-forming technology is also used in
military field, especially the fuze.
This article does some research on the clock mechanism with unturned
escapement. The force and motion features of clock mechanism in the process
of the gun launching is analysed by the kinematical and dynamics theory .
T he design of clock mechanism is also completed on the basis of the
kinematical and dynamics theory. By using the SolidWorks, the 3 d model
of the parts in the clock mechanism is established and assembled. T he
kinematical and dynamics emulation is carried out to simulate the motion
of the whole mechanism by the Adams, and the motion of parts in the mechanism
is also analysed. The stress-strain change on the face of gear when
suffering a load is analysed by the Ansys Ls-dyna. The analysis and research
on the mechanism confirms the reliability of the movement in process of
launching and the safety of the strength of parts in the clock mechanism,
and ultimately proves that the clock mechanism can content the need of
technique and tactics. This paper can also provide the reference for the
following design and simulation of clock mechanism.Key words ： Micro-forming, Fuze, Clock Mechanism, Simulation ， Analysis
of Gear Strength目 录
1 绪论 . 1
1.1 课题研究的背景及意义 . 1
1.2 微成形技术的发展  1
1.3 本文工作的主要内容 .. 2
2 引信延期 解除 保险机构设计  4
2.1 钟表机构种类介绍  4
2.2 无返回力矩钟表机构设计  5
2.3 轮系设计 . 7
2.4 骑马轮 ( 擒纵轮 ) 与卡摆设计 .. 8
2.5 本章小结 .. 11
3 无返回力矩钟表机构 ADAMS 仿真 .. 12
3.1 无返回力矩钟表机构的仿真模型 . 12
3.2 仿真结果分析  16
3.3 本章小结 .. 23
4 LS-DYNA 对齿轮强度的分析 .. 25
4.1 ANSYS LS-DYNA 简介 . 25
4.2 ANSYS LS-DYNA 仿真过程 .. 25
4.3 LS-DYNA 仿真结果 .. 27
4.4 本章小结 .. 30
5 微成形试验 .. 31
5.1 微成形时的尺度效应  31
5.2 镁合金的挤压微成形试验 . 32
6 总结 .. 35
致 谢  36
参 考 文 献  37
1 1 1 1 绪论绪论绪论绪论
1.1 1.1 1.1 1.1 课题研究的背景及意义 课题研究的背景及意义 课题研究的背景及意义 课题研究的背景及意义 Adams亚毫米零件力学性能研究仿真:http://www.youerw.com/wuli/lunwen_8394.html