YOX500限矩型液力偶合器設(shè)計

機(jī)械論文編號:JX765  論文字?jǐn)?shù):9723.頁數(shù):30   附CAD圖

 
 目 錄
中文摘要...........................................................i
英文摘要...........................................................ii
目錄................................................................1
  緒論.......................................................3
 1.1  選題背景與意義............................................3
 1.2  國內(nèi)外液力傳動工業(yè)的現(xiàn)狀及發(fā)展............................4
 1.3  研究內(nèi)容概述..............................................5
 1.4  本章小結(jié)..................................................5
第二章  設(shè)計任務(wù)....................................................6
     2.1  設(shè)計題目..................................................6
     2.2  設(shè)計要求..................................................7
     2.3  設(shè)計方法..................................................7
     2.4  設(shè)計思路..................................................8
     2.5  本章小結(jié)..................................................9
第三章  液力偶合器的傳動原理.......................................10
     3.1液力偶合器的傳動原理概述..................................10
     3.2液力偶合器環(huán)流力矩的產(chǎn)生及其轉(zhuǎn)速差的關(guān)系..................11
     3.3本章小結(jié)..................................................12
第四章  限矩型液力偶合器設(shè)計.......................................13
     4.1  設(shè)計材料的選擇...........................................13
     4.2  液力偶合器葉輪工作腔相似設(shè)計計算.........................13
     4.3  液力偶合器葉輪強(qiáng)度設(shè)計...................................15
     4.4  軸的設(shè)計.................................................16
     4.5  液力偶合器軸向力估算及軸承的選取.........................20
     4.6  液力偶合器密封裝置選擇與設(shè)計.............................23
     4.7  液力偶合器易熔塞的選擇...................................25
     4.8  本章小結(jié).................................................25
第五章  總結(jié).......................................................26
參考文獻(xiàn)...........................................................27
致謝...............................................................28

 摘要
 液力偶合器是利用液體動能和勢能來傳遞動力的一種液力傳動設(shè)備。它的實質(zhì)是離心式水泵與渦輪機(jī)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(hù)裝置等組成。輸入軸一端與動力機(jī)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(jī)相連。泵輪與渦輪對稱布置，輪內(nèi)設(shè)置一定數(shù)量的葉片。外殼與泵輪固定連接成一個密封腔，腔內(nèi)填充工作液體以傳遞動力。所配置的易熔塞，易爆塞等保護(hù)裝置，能保證偶合器在超載的時候不發(fā)生事故。限矩型液力偶合器能提高原動機(jī)起動能力，平穩(wěn)地起動大慣量工作機(jī)，隔離振動，緩和沖擊，防護(hù)傳動系統(tǒng)動力過載，協(xié)調(diào)多臺原動機(jī)間的負(fù)荷分配，不能調(diào)速和脫離。
 液力偶合器具有如下優(yōu)點：（1）無級調(diào)速。在電動機(jī)轉(zhuǎn)速恒定下可以無級調(diào)節(jié)工作機(jī)的轉(zhuǎn)速，與傳統(tǒng)的節(jié)流調(diào)節(jié)相比可以大量節(jié)省電能。（2）輕載或空載起動電動機(jī)和逐步起動大慣量負(fù)載，提高異步電機(jī)的起動能力。（3）防護(hù)動力過載，偶合器的泵輪和渦輪之間沒有機(jī)械聯(lián)系，轉(zhuǎn)矩是通過油來傳遞的，是一種柔性和有滑差的傳動。當(dāng)負(fù)載的阻力矩突然增大時，其滑差可以增大甚至制動，電機(jī)可繼續(xù)運轉(zhuǎn)而不致停車。（4）均勻多臺電機(jī)之間的負(fù)載分配。在多臺電機(jī)驅(qū)動同一負(fù)載時，允許各臺電機(jī)的轉(zhuǎn)速稍有差別，使各臺電機(jī)的負(fù)載分配均勻。（5）可隔離振動，緩和沖擊。（6）可方便實現(xiàn)離合。偶合器流道充油即接合，將油排空即脫離。（7）除軸承外無磨損件，工件可靠，壽命長。因此，在冶金、發(fā)電、礦山、市政工程、化工、運輸、紡織和輕工等部門中，得到了廣泛的應(yīng)用。
 

 
關(guān)鍵詞：液力  偶合器  限矩型  設(shè)計
 
 
 
 
 The Design of YOX500 Constant filling fluid coupling
 Abstract
 The fluid strength coupler is transmits the power using the liquid kinetic energy and the potential energy one kind of fluid drive equipment .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. Limits the moment fluid strength coupler to be able to sharpen the prime mover starting capacity, starts the big inertia working machine steadily, the isolation vibration, relaxes the impact, the protection transmission system dynamic overload, is coordinated the load distributions between many prime movers, cannot modulate velocity and be separated from.
 The fluid strength coupler has the following advantage :(1) Stepless speed regulation. In the electric motor rotational speed constant under may the stepless regulation working machine's rotational speed, compares with the traditional throttle adjustment may save the electrical energy massively.  (2)The underloading or the idling starter motor and starts the big inertia load gradually, sharpens asynchronous machine's starting capacity) (3) The protection dynamic overload, between the coupler pump pulley and the turbine wheel does not have the machinery relation, the torque is passes fries in oil transmits, is one kind of flexibility and has the slippery difference transmission. When the load moment of resistance increases suddenly, its slippery difference may increase even applies the brake, the electrical machinery may continue to revolve does not send the parking. (4)Between even many electrical machinery's load sharing. When many motor-driven identical load, allows each electrical machinery's rotational speed to have the difference slightly, causes each electrical machinery's load sharing to be even. (5) May isolate the vibration, relaxes the impact.  (6) May facilitate realizes the meeting and parting. The coupler flow channel oil charge is the joint, namely is separated from the oil evacuation (7) It not have the attrition besides the bearing, the work piece is reliable, the life is long. Therefore, in departments and so on metallurgy, electricity generation, mine, municipal engineering, chemical industry, transportation, spinning and weaving and light industry, obtained the widespread application.

Keywords:  Fluid ，Coupling，Constant filling，Design