YOX360限矩式液力偶合器设计

机械论文编号:JX710  论文字数:8788.页数:29   附CAD图

 目 录
中文摘要 ...........................................................i
英文摘要 ..........................................................ii
目录 ...............................................................1
第一章 绪论 3
1.1选题背景与意义 3
1.2  国内外液力传动工业的现状及发展 4
1.2.1  国内发展概况 4
1.2.2  国外发展概况 4
1.3  研究内容概述 5
1.4  小章总结 5
第二章 设计任务 6
2.1  设计题目 6
2.2  设计要求 6
2.3  设计方法 7
2.4  设计思路 8
2.5  本章小结 9
第三章  限矩型液力偶合器设计 10
3.1  设计材料的选择 10
3.2  液力偶合器叶轮工作腔相似设计计算 10
2.3  液力偶合器叶轮强度设计 12
2.4  轴的设计 14
2.4.1  轴的总体尺寸设计 14
2.4.2  轴键槽设计及强度校核 15
2.4.3  输入轴螺栓强度设计 17
2.5  液力偶合器轴向力估算及轴承的选取 18
2.5.1  轴向力估算 18
2.5.2  轴承的选择 19
2.6  液力偶合器密封装置选择与设计 21
2.7  液力偶合器易熔塞的选择 23
2.8  本章小结 24
第四章 总结 25
参考文献 26
致 谢 27

摘要
 本论文提出YOX360限矩型液力偶合器设计，包括从材料的选取到零件的设计直至最后的产品成型一整过程，并且运用CAD将产品的各个零件图展示出。
 液力偶合器的实质是离心式水泵与涡轮机的组合。主要由输入轴，输出轴，泵轮，涡轮，外壳，辅助腔及安全保护装置等组成。输入轴一端与动力机相连，另一端与泵轮相连；输出轴一端与涡轮相连，另一端与工作机相连。泵轮与涡轮对称布置，轮内设置一定数量的叶片。外壳与泵轮固定连接成一个密封腔，腔内填充工作液体以传递动力。所配置的易容塞，易爆塞等保护装置，能保证偶合器在超载的时候不发生事故。
  当动力机通过输入轴带动偶合器泵轮旋转时，填充在工作腔内的工作液体受到离心力和叶轮推动的双重作用，从半径较小的泵轮入口被加速加压抛向半径较大的泵轮出口，同时，液体的动量矩获得增量，即泵轮将动力机输入的机械能转化成了工作液体的动能。当具有液体动能的工作液体泵轮出口冲向对面的涡轮时，液流便冲击涡轮的叶片，使之泵轮同向转动，也就是说液体动能又转化成了机械能，驱动涡轮旋转并带动工作机工作。释放完液体动能的工作液体由涡轮入口流向涡轮出口并再次进入泵轮入口，并开始下一次循环流动。就这样，工作液体在泵轮和涡轮间周而复始不停的做螺旋环流运动，于是输入轴和输出轴在没有任何机械连接的情况下，仅靠液体动能便柔性地连接在了一起。
 
 
 
 
关键词： 限矩式  液力   偶合器  设计
 
  The Design of YOX360 Constant filling fluid coupling
 
 Abstract
 This paper presents the design of YOX360 constant filling fluid coupling， including materials select , the design of parts of the product and the final a whole form, and shows  in various parts of products with the map of CAD.
 Fluid coupling is essentially centrifugal pump and turbine combination. It mainly consists of the input shaft, output shaft, pump wheels, turbine, casings, auxiliary chamber and safety devices, etc. Input shaft connects with the power machine at one end and the other end with the pump wheel; turbine output shaft connects with turbine at one end and the other end connects with the work machine. Pump wheel and turbine layout symmetrical, round to set up a certain number of leaves. Pump wheel and casings fix into a sealed cavity, the cavity fills with liquid in order to transfer driving force for the work. The configuration Cyprus, such as the protection of explosive devices, is to ensure that coupling is not in overload, when the accident occurs.
 When the power machine through the input shaft driven rotary pump wheel coupling, the cavity filled with the work of the working fluid and the impeller by centrifugal force to promote the dual role of the pump from the radius of the smaller round of pressure to accelerate the entrance was thrown round the radius of the larger pump exports, at the same time, the moment of momentum of liquid was incremental, that is, pump input power machine round to mechanical energy is transformed into kinetic energy of working liquid. When the work of kinetic energy with the liquid pump liquid into the round of exports across the turbine, the flow will be the impact of turbine blades to rotate in the same direction round pump, that is converted into liquid kinetic energy and mechanical energy to drive the turbine rotation and promote the work of the work machine. End of the liquid kinetic energy release of the work of the entrance of the flow of liquid from the turbine turbine pump export and re-enter the round of import, and start the next circulation. In this way, the working liquid in the pump and the turbine wheel of doing non-stop inter-cycle circulation spiral movement, the input shaft and output shaft in the absence of any mechanical connection, the liquid kinetic energy alone would be flexible to connect together.

Keywords:  Constant filling   Fluid  Coupling  Design