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黑龍江工程學院本科生畢業(yè)設計
摘 要
變速器是汽車的核心組成部分，用來改變發(fā)動機傳到驅動輪上的轉矩和轉速，將動力有效而經(jīng)濟地傳至驅動車輪，以滿足汽車的使用要求。變速器是完成傳動系任務的重要部件，也是決定整車性能的主要部件之一。變速器的設計水平對汽車的動力性、燃料經(jīng)濟性、換擋操縱的可靠性與輕便性、傳動平穩(wěn)性與效率等都有直接的影響。隨著汽車工業(yè)的發(fā)展，轎車變速器的設計趨勢是增大其傳遞功率與重量之比，并要求其具有更小的尺寸和良好的性能。本設計以乘用車變速器為基礎，在給定發(fā)動機輸出轉矩、轉速及最高車速、最大爬坡度等條件下，著重對變速器齒輪的結構參數(shù)、軸的結構尺寸等進行設計計算；并對變速器的傳動方案和結構形式進行設計；同時對操縱機構和同步器的結構進行設計；從而提高汽車的整體性能。
關鍵詞：乘用車；變速器；齒輪；計算；結構
ABSTRACT
Transmission is the core components of automobile.Its task is transforming and regulateing the performance of engine. It can be used to change the engine driving wheel on the spread of torque and speed. Transmission is the important part of drivetrain components to complete the tasks. as well as one of the main factor to decide the whole performance of vehicle. The standards of Transmission designing can directly impact the vehicle dynamics, fuel economy, the reliability and portability of shifting , the smoothness and efficiency of Transmiting. Along with the development of the automobile industry,the trend of car transmission designing is to increase its transmission power and decrese its weight,and hope have smaller size and excellent performance. The design based on the FAW-Volkswagen Automotive Company Passenger car Transmission, In conditions that knowing the engine output torque,speed of engine and maximum speed of vehicles, maximum degree, focus on the designing of transmission gear structural parameters, axis geometry design computation; as well as the transmission and drive program structure design; Meanwhile on the structure of components to manipulation and synchronous design; thereby enhancing the overall performance of cars.
Key words: Passenger car ；Transmission；Gear ；Compute；Structure
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