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牙箱

牙箱 类型
手动牙箱(MT)

自动牙箱(AT)

半自动牙箱

自动牙箱中采用的行星齿轮机构
Transmission”的各地常用译名
中国大陆变速器、排挡
台湾变速箱、排档
港澳波箱
新马牙箱

牙箱(英语:Transmission),在车辆特别是汽车又称为「变速箱」、「变速器」或「排档」,中国大陆又作「排挡」,港澳则称为「波箱」;在工业机械常称为“变速机”,是进行机械动力转换的机械液压设备,为传动系统的一部分。通常它将动力源(内燃机电动机)产生的高转速、低扭矩的机械动力转换成更为有效的低转速和高扭矩的动力,以驱动驱动轴、差速器车轮等机械装置。特殊的牙箱也可能作提高转速,降低扭矩的转换。

汽车牙箱

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牙箱是内燃机驱动的汽车必要的组成部分。汽车上安装的牙箱通常有多个不同的转速/扭矩转换比,通常称为“挡位”或“挡”,以适应不同的行驶速度下对转速扭矩组合的不同要求。起步时需要低转速、高扭矩;而高速行驶时则需要高转速、低扭矩。一般来说,需要人工手动操作变换挡位的牙箱称为“手动牙箱”或“手排挡”,由机械操作自动变换挡位的牙箱称为“自动牙箱”或“自排挡”。近来还出现了可以连续调节转速/扭矩转换比的无段速牙箱,这也属于自动牙箱的一种。

种类

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至今,随着科技不断进步,相关的形式也越来越多样化。基本上,可依据操作方式分为“自动”与“手动”两大类。

制造厂

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牙箱生产门槛高且讲究安全性和妥善率,大多数车厂都委由专业的牙箱厂商生产,主要分布于日本、德国、美国等机械工业发达的国家。

日本 德国 美国

相关条目

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牙箱
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