礦車輪對拆卸機設計【含圖紙】

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攀枝花學院本科畢業(yè)設計 摘 要 I 摘 要 礦車是煤礦運輸中的主要運輸機械,而礦車輪又是礦車的易損部件。目前很 多礦廠對礦車輪的維修還靠人工來進行，不僅工作效率低，勞動強度大，而且廢 品率高。隨著在我國礦業(yè)現(xiàn)代化的發(fā)展，這種原始的拆卸方法已不能滿足實際生 產的需要，各礦廠經常因損壞的礦車不能及時被修好而影響生產。因此，設計礦 車輪對拆卸機具有重要的意義。設計中著重進行了螺母拆卸機構的設計、移動夾 持機構的設計、液壓系統(tǒng)的設計，同時對卸輪鉤、傳動齒輪、液壓系統(tǒng)等進行了 必要的校核，進而實現(xiàn)了拆卸輪對的功能。 關鍵詞礦車輪對 拆卸機 機械 攀枝花學院本科畢業(yè)設計 ABSTRACT II ABSTRACT Tub coal truck is the major transport machinery ,mine truck is vulnerable in the most components of mine truck .At present, mine truck wheels were mended by workers ,which resulted in not only low efficiency, labor intensity ,but also the high rejection rate . As the development of our national modern mining industry ,the primitive method of demolition has been unable to meet the demand of production .Due to the frequent damage to the cub ,it has greatly influent on the production .So ,the design of the wheel are demolition machine is of great signification .Design pay more attention on the nuts demolition ,the design of mobile capture ,hydraulic system design simultaneously ,the demolition round hook ,transmission gear ,hydraulic system were cheeked .So ,the function of demolition was realized . Keywords mine right wheels ，demolition machine ，machinery 攀枝花學院本科畢業(yè)設計 目錄 1 目 錄 摘 要 .................................................................................................................................................I ABSTRACT............................................................................................................................................II 1 緒論 .................................................................................................................................................1 2 部件分析 ........................................................................................................................................2 3 方案分析 ........................................................................................................................................3 3.1 方案分析 ..................................................................................................................................3 3.2 結構總體設計 .........................................................................................................................3 4 結構設計 ........................................................................................................................................4 4.1 螺母拆卸機構 ............................................................................................................................4 4.1.1 減速機的選擇 ...................................................................................................................4 4.1.2 導筒的設計 .......................................................................................................................5 4.2 卸車輪機構 ................................................................................................................................7 4.2.1 拆卸力的計算 ...................................................................................................................7 4.2.2 卸輪鉤的設計 ...................................................................................................................8 4.2.3 箱體結構設計 .................................................................................................................11 4.3 輪對固定裝置 ..........................................................................................................................11 4.3.1 V 形塊的選擇 ..................................................................................................................11 4.3.2 旋轉機構設計 .................................................................................................................12 4.3.3 移動機構的設計 ...........................................................................................................13 4.3.4 卸輪后傾覆力的計算 .....................................................................................................23 5 液壓系統(tǒng)的設計 ........................................................................................................................24 5.1 技術要求及工況分析 ..............................................................................................................24 5.2 擬定液壓系統(tǒng)原理圖 ..............................................................................................................24 5.2.1 選擇液壓回路 .................................................................................................................24 5.2.2 組成液壓系統(tǒng) .................................................................................................................24 5.3 液壓系統(tǒng)的計算和選擇液壓元件 ..........................................................................................25 攀枝花學院本科畢業(yè)設計 目錄 2 5.3.1 液壓缸主要尺寸的確定 .................................................................................................25 5.3.2 確定管道尺寸 .................................................................................................................27 5.3.3 確定液壓油箱容積 .........................................................................................................28 5.3.4 確定液壓油液 .................................................................................................................28 5.4 液壓系統(tǒng)的驗算 ......................................................................................................................28 5.4.1 壓力損失的驗算 .............................................................................................................29 5.4.2 系統(tǒng)溫升的驗算 .............................................................................................................30 6 液壓缸的設計 .............................................................................................................................32 6.1 液壓缸主要尺寸的確定 ..........................................................................................................32 6.1.1 液壓缸工作壓力的確定 .................................................................................................32 6.1.2 液壓缸內徑和活塞桿直徑 d 的確定 .........................................................................32 6.1.3 液壓缸壁厚和外徑的計算 .............................................................................................32 6.1.4 液壓缸工作行程的確定 .................................................................................................32 6.1.5 缸底、缸蓋厚度的確定 .................................................................................................33 6.1.6 最小導向長度的確定 .....................................................................................................33 6.1.7 缸體長度的確定 .............................................................................................................34 6.1.8 活塞桿穩(wěn)定性的驗算 .....................................................................................................34 6.2 液壓缸的結構設計 ..................................................................................................................35 6.2.1 缸體與缸蓋的連接形式 .................................................................................................35 6.2.2 活塞桿與活塞的連接結構 .............................................................................................36 6.2.3 活塞桿導向部分的結構 .................................................................................................37 6.2.4 活塞及活塞桿外密封圈的選用 .....................................................................................37 6.2.5 液壓缸的緩沖裝置 .........................................................................................................41 6.2.6 液壓缸的排氣裝置 .........................................................................................................42 7 液壓站的設計 .............................................................................................................................45 7.1 液壓油箱的設計 ......................................................................................................................45 7.1.1 液壓油箱的用途與設計要點 ..........................................................................................45 7.1.2 液壓油箱的結構 .............................................................................................................46 7.1.3 確定液壓油箱容積 .........................................................................................................46 7.2 集成塊單元回路圖設計 ..........................................................................................................47 結論 .............................................................................................................................................49 參 考 文 獻 ....................................................................................................................................50 攀枝花學院本科畢業(yè)設計 目錄 3 致 謝 .............................................................................................................................................51 攀枝花學院本科畢業(yè)設計 目錄 4