【正文】 目前部分主減速器的小軸承內(nèi)圈與主動(dòng)齒輪的配合性質(zhì)為小間隙配合這樣方便安裝和跟換主齒油封，但是在主減速器工作時(shí)如果采用小間隙配合，當(dāng)起步的時(shí)候法蘭盤傳遞的扭矩突然傳遞給主動(dòng)齒輪，但小軸承內(nèi)圈此時(shí)會(huì)發(fā)生相對(duì)措動(dòng)，這種措動(dòng)使擋油盤厚度磨損加劇容易導(dǎo)致小軸承軸向松動(dòng)，從而產(chǎn)生噪音。 差速器在轉(zhuǎn)配到減速器之前，需要對(duì)主、被動(dòng)齒輪安裝距進(jìn)行調(diào)整，使其更接近實(shí)際加工安裝距，這樣齒輪嚙合狀態(tài)最接近配對(duì)研磨時(shí)的狀態(tài)，運(yùn)轉(zhuǎn)起來最平穩(wěn)。 經(jīng)過多年研究，提出了通過優(yōu)化齒輪參數(shù)，如 變位系數(shù) 、齒高系數(shù)、壓力角、中心距，使嚙入沖擊速度降至最小，嚙出沖擊速度與嚙入沖擊速度的比值處于某一數(shù)值范圍，減小或避免嚙合節(jié)圓沖擊的齒輪設(shè)計(jì)方法，也可明顯降低減速機(jī)齒輪噪聲。 低噪聲齒輪結(jié)構(gòu)設(shè)計(jì)的要求。對(duì)于一個(gè)齒輪來說影響工作平穩(wěn)性的因素是他的基節(jié)誤差和它的漸開線齒形誤差。 輪體偏心偏重的齒輪在嚙合運(yùn)轉(zhuǎn)時(shí)產(chǎn)生不平衡的離心力，它是一種交變應(yīng)力，會(huì)引起輪系的振動(dòng)而產(chǎn)生噪聲，因此對(duì)輪體進(jìn)行動(dòng)態(tài)平衡檢測(cè)是必要的環(huán)節(jié)。 [5] 5 總結(jié) 車輛驅(qū)動(dòng)橋單級(jí)主減速器噪音問題是比較復(fù)雜的系統(tǒng)問題，既涉及到各不同零部件的加工精度，又需要在裝配環(huán)節(jié)進(jìn)行分別控制，實(shí)際的噪音產(chǎn)生原因可能發(fā)生在其中的某個(gè)環(huán)節(jié)，也可能是多個(gè)環(huán)節(jié)均存在 問題，為有效避免噪音的發(fā)生，需要在制造環(huán)節(jié)和裝配環(huán)節(jié)均進(jìn)行控制與調(diào)整，尤其是后期的調(diào)整需要嚴(yán)格控制工藝方法，根據(jù)實(shí)際的試驗(yàn)反饋情況來不斷修正各調(diào)整量，以最終獲得某產(chǎn)品的合理控制范圍。 譯 文 評(píng) 閱 導(dǎo)師評(píng)語 （應(yīng)根據(jù)學(xué)?！白g文要求”，對(duì)學(xué)生外文翻譯的準(zhǔn)確性、翻譯數(shù)量以及譯文的文字表述情況等作具體的評(píng)價(jià)） 指導(dǎo)教師： 年 月 日 附： The Research of Vehicle drive axle gear noise control Abstract: The singlestage main gear axle noise sources and produces a classification of factors, and according to the mechanism of different factors and related improvements proposed adjustment program to eliminate noise reduction. Key words: After the main by the bridge Noise Driving Bevel Gear Passive bevel gear Bearing size Differential 1 Background With the various types of vehicles and work in people39。s main role is to transfer speed and torque, so its manufacture of precision gears, their work is the main level stability. Working with high level of stability not only its own long life gear, and transmission of the shock, vibration, noise, also small, so the work of the stationary gear restriction error is the key to reduce gear noise. Smooth working of the accuracy of the noise. Accuracy of the work gear is required stability limits the instantaneous gear ratio changes, the error is occur several times per week to gear the corner of the error, it makes the process of generating gear in meshing impact, vibration, resulting in gear noise, it is a Species of the impact of highfrequency sound. For a gear for the stability of the factors that affect the work of the base section of his error and its involute error. Gears of noise exposure accuracy. Assessment of the accuracy of the posite indicator gear contact is contact spots, the noise exposure to bad gear will be greater. Cause tooth contact is not ideal because: Error in gear tooth length direction of the contact, the base section of deviation and direction of tooth profile error of contact. Motion accuracy of the gear noise. Gears transmit motion motion accuracy is the accuracy of the corner of gear per week to the maximum error value of the error can not exceed a certain limit. As a big cyclical motion accuracy gear (gear one revolution) error, while the ring gear by the gear in the gear rotating radial Zhou Jie accumulative error within a week will produce lowfrequency noise, but the cumulative pitch error increases, will result in Gears, and the impact of changes in angular velocity, then the noise increased significantly, and issued a rumblingsound. Emphasis on the body of the eccentric wheel noise. Emphasis on the body eccentric gear wheel meshing operation in the centrifugal force generated when the imbalance, A preliminary part of the development cycle was to determine the safety factors for anticipated operating conditions. Engineers utilized ADAMS simulation results to predict loads and evaluate design concepts before proceeding to the final design specifications. The initial concept design was analyzed via an ADAMS analysis of the automatic tensioners subjected to static and dynamic loads that can be expected from a frontend accessory belt drive system. The primary function of the accessory belt driven system is power transmission from the crankshaft pulley to the accessory ponents. Accessory ponents include the alternator, powersteering pump, air conditioner, and the water pump. The automotive engineering literature is rich in descriptions of belt/chain drives [18]. The model developed herein differs in that it is fully implemented in mercial software, plete with a GUI, and captures fully coupled dynamics in a bined finite element / multi body dynamics approach. it is a alternating stress, can cause vibration and gear noise, so the wheel dynamic balance testing is necessary for the body part. Precision gear box bore the impact of noise Box Hole accuracy on the noise reducer has prominent effects. Aperture hole is precision accuracy, central moment of the error, the parallelism of the centerline of the hole and tilt. Production practice, we understand the bearing