【正文】 寶馬 325im 的離合器設計計算 I 寶馬 325im 的離合器設計計算 摘 要 汽車 離合器位于發(fā)動機和變速箱之間的飛輪殼內，用螺釘將離合器總成固定在飛輪的后平面上，離合器的輸出軸就是變速箱的輸入軸。在汽車行駛過程中，駕駛員可根據需要踩下或松開離合器踏板，使發(fā)動機與變速箱暫時分離和逐漸接合，以切斷或傳遞發(fā)動機向變速器輸入的動力。 其功用為：（ 1）使汽車平穩(wěn)起步；（ 2）中斷給傳動系的動力，配合換檔；（ 3）防止傳動系過載。 膜片彈簧離合器是近年來在轎車和輕型汽車上廣泛采用的一種離合器，它的轉矩容量大而且較穩(wěn)定，操作輕便，平衡性好，也能大量生產，對于它的研究已經變得越來越重要。此設計說明書詳細的說明了輕型汽車膜片彈簧離合器的結構形式，參數選擇以及計算過程。 本設計主要針對寶馬 325im的離合器進行設計計算。 關鍵詞 : 離合器 、 膜片彈簧 、 從動盤 、中間盤、 壓盤 、 摩擦片 寶馬 325im 的離合器設計計算 II Abstract Automobile Clutch in the engine and gearbox between the flywheel shell, with screw will be fixed in the clutch assembly after the plane of the flywheel, clutch gearbox output shaft is the input shaft。 In the process of moving vehicle, the driver may need Pedal or release the clutch pedal so that the engine and gearbox temporary separation and progressive joint, to cut off the engine or transmission to the transmission input power. Its function as: (1) the car a smooth start, (2) to interrupt the transmission of power to meet the shift, (3) to prevent transmission of the overload. In recent years theca spring clutch is a kind of clutch that widely Adopted in vehicle and light vehicle . It has great capacity of torque And more stabley ,manipulate easy and convenient ,well equilibrium ,And also can produce batch .so the research of the clutch is more and more important . This design manual elaborated on the construction form,parametre choose and process of calculate of the light vehicle. This design is mainly for the clutch of the BMW 325im. Key words: clutch、 theca spring、 driven disc、 pressure plate、 the middle plate、 friction disc 寶馬 325im 的離合器設計計算 III 目錄 摘 要 ......................................................................................................................................... I ABSTRACT ................................................................................................................................... II 緒 論 ........................................................................................................................................ 1 第 1 章 概述 ............................................................................................................................... 2 第 2 章 離合器結構方案選取 ...................................................................................................... 4 給定參數和結構設計要求 ................................................................................................. 4 結構設計 .......................................................................................................................... 4 從動盤數選取 ........................................................................................................... 4 壓緊彈簧的結構形式及布置 ...................................................................................... 5 壓盤和中間盤的驅動方式 ......................................................................................... 6 分離軸承的類型 ....................................................................................................... 7 離合器的通風散熱措施 ............................................................................................. 8 第 3 章 離合器基本結構參數的確定及優(yōu)化 ................................................................................. 9 后備系數的選擇 ............................................................................................................... 9 摩擦因數 F 的選擇 ............................................................................................................ 9 摩擦片單位壓力 P。的選擇 ............................................................................................... 9 摩擦片外徑及其它尺寸的確定 .........................................................................................10 第 4 章 膜片彈簧設計 ................................................................................................................13 膜片彈簧的概念 ..............................................................................................................13 膜片彈簧的彈性特性 .......................................................................................................13 膜片彈簧基本參數的選擇 ................................................................................................14 膜片彈簧的計算 ..............................................................................................................15 第 5 章 離合器壓盤和中間盤設計 ..............................................................................................20 壓盤和中間盤傳力方式的選擇 .........................................................................................20 壓盤和中間盤的幾何尺寸的確定 .....................................................................................20 寶馬 325im 的離合器設計計算 IV 壓盤和中間盤的材料選擇 ................................................................................................21 第 6 章 離合器從動盤總成設計 ..................................................................................................22 從動盤結構簡要介紹 .......................................................................................................22 從動盤設計 .....................................................................................................................23 從動片的選擇和設計 ................................................................................................23 從動盤轂設計 ..........................................................................................................23 摩擦片的材料選取及與從動片的固緊方式 ................................................................24 扭轉減震器設計 ..............................................................................................................25 扭轉減振器的結構簡單介紹 .....................................................................................25 減振彈簧設計 .................................................................................