设计简介
摘 要
鼓式制动器是车辆主要的制动器种类之一，一般要求迅速、高质量地完成制动鼓的相关设计。处理该问题的有效手段之一，就是在对制动器零部件进行参数化设计的基础上，创建鼓式制动器专用设计平台。这不仅可以提升产品质量，降低设计周期，减少成本，还可极大地降低劳动强度。
本文主要以领从蹄式鼓式制动器为例展开研究，对其结构组成、工作原理进行了详细描述，以东风EQ1146VZ4为例进行了相关设计和计算。用 CATIA 软件，建立了东风EQ1146VZ4鼓式制动器的制动鼓和制动蹄以及摩擦衬片的三维实体模型，完成了装配。介绍了使用VB进行参数化设计的方法和过程。通过使用VB对CATIA进行访问的方法，对制动鼓模型进行了参数化设计。使用ANSYS分析软件把CATIA中建立的模型导入，进行了应力和变形分析，得到了制动鼓每个零件的受力和变形情况，并在此基础上对其进行了优化。
本次设计研究了如何使用CATIA对鼓式制动器进行绘制，在此基础上使用ANSYS分析到优化结果，之后使用参数化设计对鼓式制动器进行参数修改，为鼓式制动器的优化设计提供了一种方法。
关键词：鼓式制动；CAITA；参数化设计；仿真分析
ABSTRACT
Drum brake is one of the main types of brake, and it is required to complete the design of brake drum rapidly and with high quality. One of the effective means to solve this problem is to design the drum brake special design platform on the basis of parametric design of the brake parts. This can not only improve the quality of products, reduce the design cycle, reduce costs, but also greatly reduce labor intensity.
In this paper, we take the leading drum brake as an example to study the structure and working principle of the drum brake. Taking Dongfeng EQ1146VZ4 as an example, the related design and calculation are carried out. The three-dimensional solid model of drum brake shoe and brake shoe of Dongfeng EQ1146VZ4 drum brake and friction lining are established by using CATIA software, and the assembly is completed. This paper introduces the method and process of using VB to develop two times. The brake drum model was developed two times by using VB to access the CATIA. ANSYS analysis software was used to analyze the stress and deformation of the model established in CATIA. The force and deformation of each part of the brake drum were obtained, and the optimization was carried out on this basis.
The design of how to use the CATIA of drum brake is drawn, based on the use of ANSYS analysis to the optimization results, design parameters of drum brake after the modification parameters, provides a method for optimization design of drum brake.
Keywords: drum brakes; CAITA; Parameterized design; Secondary development; The simulation analysis
鼓式制动器是车辆主要的制动器种类之一，一般要求迅速、高质量地完成制动鼓的相关设计。处理该问题的有效手段之一，就是在对制动器零部件进行参数化设计的基础上，创建鼓式制动器专用设计平台。这不仅可以提升产品质量，降低设计周期，减少成本，还可极大地降低劳动强度。
本文主要以领从蹄式鼓式制动器为例展开研究，对其结构组成、工作原理进行了详细描述，以东风EQ1146VZ4为例进行了相关设计和计算。用 CATIA 软件，建立了东风EQ1146VZ4鼓式制动器的制动鼓和制动蹄以及摩擦衬片的三维实体模型，完成了装配。介绍了使用VB进行参数化设计的方法和过程。通过使用VB对CATIA进行访问的方法，对制动鼓模型进行了参数化设计。使用ANSYS分析软件把CATIA中建立的模型导入，进行了应力和变形分析，得到了制动鼓每个零件的受力和变形情况，并在此基础上对其进行了优化。
本次设计研究了如何使用CATIA对鼓式制动器进行绘制，在此基础上使用ANSYS分析到优化结果，之后使用参数化设计对鼓式制动器进行参数修改，为鼓式制动器的优化设计提供了一种方法。
关键词：鼓式制动；CAITA；参数化设计；仿真分析
ABSTRACT
Drum brake is one of the main types of brake, and it is required to complete the design of brake drum rapidly and with high quality. One of the effective means to solve this problem is to design the drum brake special design platform on the basis of parametric design of the brake parts. This can not only improve the quality of products, reduce the design cycle, reduce costs, but also greatly reduce labor intensity.
In this paper, we take the leading drum brake as an example to study the structure and working principle of the drum brake. Taking Dongfeng EQ1146VZ4 as an example, the related design and calculation are carried out. The three-dimensional solid model of drum brake shoe and brake shoe of Dongfeng EQ1146VZ4 drum brake and friction lining are established by using CATIA software, and the assembly is completed. This paper introduces the method and process of using VB to develop two times. The brake drum model was developed two times by using VB to access the CATIA. ANSYS analysis software was used to analyze the stress and deformation of the model established in CATIA. The force and deformation of each part of the brake drum were obtained, and the optimization was carried out on this basis.
The design of how to use the CATIA of drum brake is drawn, based on the use of ANSYS analysis to the optimization results, design parameters of drum brake after the modification parameters, provides a method for optimization design of drum brake.
Keywords: drum brakes; CAITA; Parameterized design; Secondary development; The simulation analysis
目 录
摘 要 I
ABSTRACT II
1 绪论 1
1.1鼓式制动器的分类和工作原理 1
1.2国外研究现状 1
1.3国内研究现状 2
1.4 CAD技术发展趋势及展望 3
1.5本章小结 3
2 鼓式制动器主要几何参数及选择 4
2.1 制动鼓内径D 4
2.2摩擦衬片宽度b和包角β 5
2.3摩擦衬片起始角β0 6
2.4制动器中心到张开力F0作用线的距离e 6
2.5制动蹄支撑点位置坐标a和c 6
2.6摩擦片摩擦系数f 6
2.7本章小结 6
3 鼓式制动器的设计与计算 8
3.1制动驱动机构的设计计算 8
3.2制动蹄片上的制动力矩 13
3.3同步附着系数 15
3.4制动器最大制动力矩 16
3.5制动蹄效能因数计算 17
3.6制动距离与制动减速度 17
3.7最大驻坡度 18
3.8本章小结 18
4 制动鼓模型的建立 20
4.1制动鼓的三维模型 20
4.2制动蹄的三维模型 20
4.3制动片的三维模型 21
4.4制动轮缸的三维模型。 22
4.5制动片的三维模型 23
4.5本章小结 23
5 制动鼓参数化设计 25
5.1关键参数选取 25
5.2界面设计 25
5.3 编写代码 27
5.4本章小结 27
6 基于 ANSYS 鼓式制动器的受力分析 29
6.1制动鼓模型的应力分析 29
6.2制动鼓模型的变形分析 32
6.3改进方案 34
6.4本章小结 35
7 结论 36
参 考 文 献 38
致 谢 53
