汽車轉向橋的設計（含4張CAD圖紙和說明書）

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中文題目：載重汽車轉向橋設計 外文題目：THE DESEGH OF THE TRUCK STEERING AXLE 畢業(yè)設計（論文）共 52 頁（其中：外文文獻及譯文 16 頁） 圖紙共 4 張 完成日期 答辯日期 載重汽車轉向橋設計 摘 要 本設計為載重汽車的轉向橋，此轉向橋需要適應不同路況，不同速度下的穩(wěn)定行駛， 因此對前橋的要求也越來越高。在汽車設計、制造、因此應該本著既能有足夠的承載能 力，又能實現(xiàn)耐用經(jīng)濟的思想進行方案的選擇，為了降低生產(chǎn)成本，又在結構上滿足要 求的情況下應盡量簡單。 通過設計：（1）保證有足夠的強度：以保證可靠的承受車輪與車架之間的作用力。 （2）保證有足夠的剛度：以使車輪定位參數(shù)不變。 （3）保證轉向輪有正確的定位角度： 以使轉向輪運動穩(wěn)定，操縱輕便并減輕輪胎的磨損。 （4）轉向橋的質量應盡可能?。阂?減少非簧上質量，提高汽車行駛平順性。 通過分析工作原理設計轉向節(jié)、前軸、主銷等零件的尺寸，使各個零部件的強度滿 足校核，并運用 caxa 等繪圖軟件繪制裝配圖和零件圖。 關鍵詞: 轉向橋；定位參數(shù)；轉向節(jié)；前軸；主銷 The design of the truck steering axle Abstract This design is Steering Axle for heavy trucks. The design is need to adapt to different road and under different speeds, so the stability of front axle higher requirements. In car design, manufacture, and should be based on both have enough carrying capacity, and can achieve durable economic thoughts options, in order to reduce the production cost, and meets the requirements in the structure of situations should as far as possible simple. By design: (1) To ensure adequate strength: in order to ensure affordable and reliable force between wheel and frame. By design: (1) To ensure adequate strength: in order to ensure affordable and reliable force between wheel and frame. (2) Ensure adequate rigidity: in order to change the wheel alignment parameters. (3)To ensure the correct positioning of steering wheel angle: to make the steering wheel movement and stability, manipulating light and reduce tire wear. (4) The steering axle of quality should be as small as possible: to reduce the non-sprung mass, improve vehicle ride comfort. Works by analyzing the design of steering knuckle, front axle, kingpin and other parts of the size, so that the strength of the various components to meet the check, and use other mapping software caxa assembly drawing and parts are drawing. Key words: steering axle; positional parameters; knuckle; front axle；kingpin 目錄 前 言 .........................................................................................................................1 1.汽車轉向橋的概況 ...............................................................................................2 1.1 汽車轉向橋目前狀況 .....................................................................................2 1.1.1 汽車前橋的分類 ......................................................................................2 1.1.2 前橋各參數(shù)對汽車穩(wěn)定性的作用與影響 ..............................................2 1.2 從動橋的結構形式 .........................................................................................5 1.2.1 從動橋總體結構 .....................................................................................5 1.2.2 載重汽車從動橋 .....................................................................................6 1.2.3 載重汽車從動橋 .....................................................................................7 1.2.4 設計意義 ..................................................................................................7 2.轉向橋的設計結構參數(shù) .......................................................................................8 2.1 結構參數(shù)選擇 .................................................................................................8 2.2 從動橋總體結構選擇 .....................................................................................8 2.3 確定前橋具體結構型式 .................................................................................8 3.前軸設計 ...............................................................................................................9 3.1 前軸強度計算 .................................................................................................9 3.1.1 前軸受力分析簡圖 ..................................................................................9 3.1.2 前軸載荷的計算（分三種工況分析 ） ................................................10 3.2 前軸彎矩及扭矩計算 ...................................................................................11 3.2.1 前軸斷面分析圖 ....................................................................................11 3.2.2 各個斷面彎扭矩計算（分三種工況分析） ........................................12 3.3 斷面系數(shù)計算 ...............................................................................................13 3.4 應力計算 .......................................................................................................19 3.5 前軸材料的許用應力 ...................................................................................20 4.轉向節(jié)設計 .........................................................................................................21 4.1 截面系數(shù)計算 ...............................................................................................21 4.2 彎矩計算 .......................................................................................................21 4.3 應力計算 .......................................................................................................22 4.4 轉向節(jié)的材料、許用應力及強度校核 .......................................................22 5.主銷設計 .............................................................................................................23 5.1 主銷受力計算參數(shù) .......................................................................................23 5.2 計算載荷 .......................................................................................................23 5.3 彎矩計算 .......................................................................................................25 5.4 抗彎斷面系數(shù)、剪切面積和主銷襯套擠壓面積的計算 ...........................25 5.5 應力計算 .......................................................................................................26 5.6 主銷材料及許用應力 ...................................................................................27 6.轉向傳動機構設計 .............................................................................................28 6.1 轉向傳動機構強度計算 ...............................................................................28 6.1.1 球頭銷 ....................................................................................................29 6.1.2 轉向拉桿 ................................................................................................29 6.1.3 轉向搖臂 ................................................................................................29 6.2 桿件設計結果 ...............................................................................................30 7.經(jīng)濟技術分析 .....................................................................................................31 7.1 我國汽車車橋行業(yè)發(fā)展歷程 .......................................................................31 7.2 國內(nèi)汽車車橋產(chǎn)量和市場容量分析 ...........................................................31 7.3 汽車車橋業(yè)發(fā)展特征及問題透視 ...............................................................31 7.4 車橋產(chǎn)品結構解析轉向橋經(jīng)濟性分析 ...................................................31 7.5 提高轉向橋經(jīng)濟性 .......................................................................................32 8.結 論 .................................................................................................................33 致 謝 ...................................................................................................................34 參 考 文 獻 ...........................................................................................................35 附 錄 ...................................................................................................................36 附錄 1 英文原文 ..................................................................................................36 附錄 2 中文譯文 ..................................................................................................46