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附 錄1
重型汽車驅(qū)動橋的基本結(jié)構(gòu)及發(fā)展趨勢。
1．重型汽車驅(qū)動橋的基本結(jié)構(gòu)
驅(qū)動橋是重型汽車的重要標志之一，其基本結(jié)構(gòu)有以下兩種
1．1中央單級減速驅(qū)動橋
是驅(qū)動橋結(jié)構(gòu)中最為簡單的一種，是驅(qū)動橋的基本形式，在載重汽車中占主導(dǎo)地位。一般在主傳動比小于6的情況下，應(yīng)盡量采用中央單級減速驅(qū)動橋。目前的中央單級減速器趨于采用雙曲線螺旋傘齒輪。主動小齒輪采用騎馬式支承，有差速鎖裝置供選用。
1．2中央雙級驅(qū)動橋
在國內(nèi)目前的市場上，中央雙級驅(qū)動橋主要有2種類型：一類如伊頓系列產(chǎn)品，事先就在單級減速器中預(yù)留好空間，當要求增大牽引力與速比時，可裝人圓柱行星齒輪減速機構(gòu)，將原中央單級改成中央雙級驅(qū)動橋。這種改制“三化”程度高，橋殼、主減速器等均可通用，盆齒輪直徑不變；另一類如洛克威爾系列產(chǎn)品，當要增大牽引力與速比時，需要改制第一級傘齒輪后，再裝入第二級圓柱直齒輪或斜齒輪，變成要求的中央雙級驅(qū)動橋這時橋殼可通用，主減速器不通用，盆齒輪有2個規(guī)格。
2009年中國汽車的產(chǎn)銷量突破1000萬輛，以驚人的速度邁進千萬輛級的汽車生產(chǎn)、消費大國行列。除了整車制造以外，汽車零部件領(lǐng)域的快速發(fā)展也有目共睹。《2011中國汽車驅(qū)動橋市場趨勢觀察研究預(yù)測報告》分析：零部件行業(yè)銷售和盈利環(huán)比繼續(xù)改善，2009年9~11月稅前利潤環(huán)比增長248%。2009年9-11月份，汽車零部件行業(yè)銷售收入達3,413億元，同比上升499%，環(huán)比增長80%，銷售收入自2季度反彈以來持續(xù)攀升，國內(nèi)汽車銷量增長推動零部件配套收入上升是行業(yè)增長的主要來源。行業(yè)利潤總額達289億元，同比上升1303%，環(huán)比增長248%,在行業(yè)銷售收入增長背景下，行業(yè)盈利也實現(xiàn)同比大幅上升。
??? 。)工程自卸車、運水車等(的雙級主減速器。后者更適宜于最大程度地滿足用戶不同需要。而亞洲、非洲和南美國家則采用帶輪邊減速的雙級主減速器的驅(qū)動橋，用于非道路和惡劣道路使用的車輛)行星齒輪傳動(帶輪邊減速;《2011中國汽車驅(qū)動橋市場趨勢觀察研究預(yù)測報告》中數(shù)據(jù)表明：現(xiàn)在，世界上貨車普遍采用兩種驅(qū)動橋結(jié)構(gòu)單級減速雙曲線螺旋錐齒輪副
??? 本報告著重分析了2009-2010年中國汽車驅(qū)動橋行業(yè)和市場發(fā)展現(xiàn)狀，行業(yè)發(fā)展趨勢。依據(jù)對大量最新資訊的詳盡分析，結(jié)合權(quán)威的觀點，并將近年來大量的連續(xù)監(jiān)測數(shù)據(jù)運用數(shù)據(jù)模型分析，對2011-2015年中國汽車驅(qū)動橋市場的發(fā)展做出科學(xué)的預(yù)測。
??? 《2011中國汽車驅(qū)動橋市場趨勢觀察研究預(yù)測報告》2010年6月版由鄭林博士領(lǐng)銜撰寫。 在撰寫過程中得到香港中華商業(yè)信息研究院的智慧支持。并得到國家統(tǒng)計局，中國汽車工業(yè)協(xié)會，中國汽車用品網(wǎng)，汽車零部件工業(yè)協(xié)會，中國海關(guān)，中國數(shù)字圖書館等多家信息機構(gòu)的智慧支持。在此表示感謝！
附 錄2
Heavy vehicle drive axle of the basic structure and development trend.
1. The basic structure of heavy vehicles driving axle
Heavy duty truck driving axle is one of the important marks, its basic structure has the following 3 kinds
1.1 central single stage slowdown driven axle
Is driving axle structure most simple one kind, is the basic forms, in driving axle load truck dominant. Generally in the main transmission ratio less than 6 cases, should try to use a central single stage slowdown driven axle. The current central single stage reducer tend to adopt hyperbola spiral bevel gears. Active pinion by riding type bearing, discriminating speed lock device for selection.
1.2 central doublestage axles
In domestic currently on the market, the central doublestage axles basically has two kinds: one profenofos Eaton series products, in advance in single stage reserved good space of speed reducer, when asked to increase traction and speed, can install people cylindrical planet gear institutions, will original central single stage into a central doublestage axles. This restructuring "three" degree high, bridge housing, main reducer, etc. Can be general, basins gear diameter unchanged, Another profenofos LuoKeWeiEr series product, when will increase traction and ratio, require restructuring first-level bevel gear, then loaded the second cylindrical spur gear or helical gears, become requirements of central doublestage axles then bridge housing, the main purpose of gear reducer not gm, basin has 2 specifications.
2009 China automobile single-brand sales volume of 10 million cars, with amazing speed towards million units level car production, consumption power ranks. In addition to the vehicle manufacturing, automotive field outside the rapid development also evident. The 2011 China automobile driving axle market trend observation research forecast report analysis: spare parts industry sales and earnings annulus continues to improve, 2009 September to November 248% pre-tax profit growth period. 2009 9 - November, auto parts industry sales revenue of 3,413 billion yuan, rise compared to the 499%, annulus increased by 80 percent, and sales income from 2 quarterly rebound since continue to rise, domestic car sales growth parts matching income rise is the main source of industry growth. Industry profit total 289 billion yuan, up 1303%, rise in the industry 248% annulus growth increased sales background, industry profits also realization year-on-year increase dramatically.
The 2011 China automobile driving axle market trend observation research forecast in the report on data indicate that: now, widely used in the world two axles van structure single stage deceleration hyperbola spiral bevel ) planetary gear transmission of ( belt wheel edges vice ;gear deceleration doublestage main reducer. The latter is more suitable for maximum satisfy user needs. Asia, Africa and South America countries will adopt belt wheel edges slowdown doublestage Lord gear reducer is driven axle, used for non-road and bad .) engineering dump truck, YunShuiChe etc (road vehicle in use
This report focuses on analyzing the 2009-2010 China automobile driving axle industry and market development present situation, the industry trend. Based on detailed analysis of the latest information, combined with the authoritative opinion, and nearly years large amounts of continuous monitoring data by using the data model analysis, to 2011-2015 China automobile driving axle market development to make scientific forecast.
The 2011 China automobile driving axle market trend observation research forecast report June 2010 ZhengLin led by dr written version. In the writing process of getting Hong Kong Chinese commercial information institute wisdom support. And get the national bureau of statistics, China's automotive industry association, China auto supplies nets, auto parts industry association, China customs, China digital library of information institutions and companies wisdom support. In this thank!