外文翻譯=等速萬向節(jié)總成=2000字符

中國地質(zhì)大學(xué)長城學(xué)院 本科 畢業(yè) 設(shè)計 外文資料翻譯 系 別 ： 工程技術(shù)系 專 業(yè)： 機械設(shè)計制造及其自動化 姓 名： 張江飛 學(xué) 號： 05211508 2015 年 1 月 23 日 外文資料翻譯譯文 等速萬向節(jié)總成是轎車動力系中的一個組件。一輛四驅(qū)車共由 6 根等速萬向節(jié)總成組成 ,其中 2 根為前驅(qū)半軸總成 , 2 根為后驅(qū)半軸總成。它們連接在車輪與差速器上 , 把 差速器的轉(zhuǎn)矩傳遞給車輪 , 故稱為驅(qū)動軸 ; 由于車輪分左、 右兩個輪 , 因此需成對安裝 , 又稱為驅(qū)動半軸總成 , 其特點是傳遞轉(zhuǎn)矩大而轉(zhuǎn)速低 ; 另外 2 根傳遞發(fā)動機轉(zhuǎn)矩 , 其特點是傳遞轉(zhuǎn)矩小而轉(zhuǎn)速高 , 稱之為傳動軸 , 前傳動軸連接在分動器和前差速器上 , 后傳動軸連接在分動器和后差速器上。從使用性能上把等速萬向節(jié)總成分成驅(qū)動半軸總成和傳動軸總成兩大類 , 下面分析每種類型的特點 。 鐘形殼是等速萬向節(jié)中的重要零件，其內(nèi)腔弧形滾道形狀復(fù)雜，成形困難。采用 冷鍛與冷 精整聯(lián)合擠壓相結(jié)合的方法，實現(xiàn)了鍛件 的成形。通過有限元模擬，分析 了 的流動情況，對成形工藝方案進行了改進，同時考慮鐘形殼 的冷卻收縮，將收縮量由 0 75改為 0 4。工藝試驗后獲得了較為理想的鍛件，證明改進后的工藝使產(chǎn)品質(zhì)量和精度都得到了顯著的提高。 向節(jié)傳動發(fā)展過程中，由在呈交角的兩軸承 之間借助于 2 個圓錐齒輪來傳遞運動，發(fā)展成利 用鋼球和球形窩來代替輪齒傳動，即：在固定角度下的一對錐齒輪發(fā)展 變交角 p 的球式萬向節(jié)。然而，為了使球式萬向節(jié)具有鉸接性能 (夾角可變的能力 )，球心窩必須擴展成弧形滾道，分別在鐘形外殼和球形內(nèi)上形成鐘形外殼弧形滾道的制造過程 中，為了減小后工序的 磨 削量，設(shè)計鍛件時，增大 42。角，俗稱為圓弧與鋼球的接觸角，從 42。增大為 52 5。，同時測量鋼球的球心距也相應(yīng)增大。接觸角增大后，鍛件尺寸更接近產(chǎn)品尺寸。取消了一道粗磨削，部分磨削余量由 突 模擠壓成形，塑性成形替代了部分機加工量，減少工序同時，機械性能也得到一定程度的提高。 外文原文 Patterned constant speed universal joint assembly is a group of cars powertrains. A raider buggies altogether is composed of six root patterned constant speed universal joint assembly,Precursors including 2 half shaft assembly, after 2 root for drive axle shaft assembly.They are connected to the wheel and the differential, the torque transfer differential.Hand wheel, so called the drive shaft; Due to the left and right wheels points twoWheel, so need to install in pairs, also known as the drive axle shaft assembly, its characteristic.Point is big transmission torque and rotational speed is low; In addition the root pass 2 engine.Torque, its characteristic is small and high speed transmission torque, called transmission.The front drive shaft, connected before the transfer case and differential, after transmission.Shaft connected to the transfer and the rear differential. From the using performance.Patterned constant speed universal joint assembly is divided into driving axle shaft total. Spherical housing is an important part in patterned constant speed universal joint, which arc raceway cavity shape is complex, forming difficulties.Warm forging and cold sizing combined extrusion method of combining the, implements the forging forming. Through finite element simulation, the paper analyzes the reverse flow situation of extrusion forming, the forming technology plan is improved, at the same time considering the cooling shrinkage temperature after forging forgings, will shrink by 0.75% to 0.4%. Ideal forging was attained after experiments and prove that the improved technology make the product quality and accuracy have been improved significantly. Cardan drive development, submitted by the Angle between two axes by using two bevel gears to transmit motion and development into the use of steel ball and spherical socket to replace gear drive, i.e., under the fixed Angle of the development of a pair of bevel gear into the change of p ball type universal joint. However, in order to make the ball type universal joint has articulated performance (variable Angle), ball heart must extend into arc raceway, respectively in the bell is formed on the shell and spherical in the hub shell arc raceway manufacturing process, after in order to reduce the amount of the cutting process, design of forging, 42. Angle, commonly known as for circular arc and the contact Angle o