YOX360限矩式液力偶合器設計

機械論文編號:JX710  論文字數:8788.頁數:29   附CAD圖

 目 錄
中文摘要 ...........................................................i
英文摘要 ..........................................................ii
目錄 ...............................................................1
第一章 緒論 3
1.1選題背景與意義 3
1.2  國內外液力傳動工業的現狀及發展 4
1.2.1  國內發展概況 4
1.2.2  國外發展概況 4
1.3  研究內容概述 5
1.4  小章總結 5
第二章 設計任務 6
2.1  設計題目 6
2.2  設計要求 6
2.3  設計方法 7
2.4  設計思路 8
2.5  本章小結 9
第三章  限矩型液力偶合器設計 10
3.1  設計材料的選擇 10
3.2  液力偶合器葉輪工作腔相似設計計算 10
2.3  液力偶合器葉輪強度設計 12
2.4  軸的設計 14
2.4.1  軸的總體尺寸設計 14
2.4.2  軸鍵槽設計及強度校核 15
2.4.3  輸入軸螺栓強度設計 17
2.5  液力偶合器軸向力估算及軸承的選取 18
2.5.1  軸向力估算 18
2.5.2  軸承的選擇 19
2.6  液力偶合器密封裝置選擇與設計 21
2.7  液力偶合器易熔塞的選擇 23
2.8  本章小結 24
第四章 總結 25
參考文獻 26
致 謝 27

摘要
 本論文提出YOX360限矩型液力偶合器設計，包括從材料的選取到零件的設計直至最后的產品成型一整過程，并且運用CAD將產品的各個零件圖展示出。
 液力偶合器的實質是離心式水泵與渦輪機的組合。主要由輸入軸，輸出軸，泵輪，渦輪，外殼，輔助腔及安全保護裝置等組成。輸入軸一端與動力機相連，另一端與泵輪相連；輸出軸一端與渦輪相連，另一端與工作機相連。泵輪與渦輪對稱布置，輪內設置一定數量的葉片。外殼與泵輪固定連接成一個密封腔，腔內填充工作液體以傳遞動力。所配置的易容塞，易爆塞等保護裝置，能保證偶合器在超載的時候不發生事故。
  當動力機通過輸入軸帶動偶合器泵輪旋轉時，填充在工作腔內的工作液體受到離心力和葉輪推動的雙重作用，從半徑較小的泵輪入口被加速加壓拋向半徑較大的泵輪出口，同時，液體的動量矩獲得增量，即泵輪將動力機輸入的機械能轉化成了工作液體的動能。當具有液體動能的工作液體泵輪出口沖向對面的渦輪時，液流便沖擊渦輪的葉片，使之泵輪同向轉動，也就是說液體動能又轉化成了機械能，驅動渦輪旋轉并帶動工作機工作。釋放完液體動能的工作液體由渦輪入口流向渦輪出口并再次進入泵輪入口，并開始下一次循環流動。就這樣，工作液體在泵輪和渦輪間周而復始不停的做螺旋環流運動，于是輸入軸和輸出軸在沒有任何機械連接的情況下，僅靠液體動能便柔性地連接在了一起。
 
 
 
 
關鍵詞： 限矩式  液力   偶合器  設計
 
  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