“甩挂运输”是世界公认的提高运输与物流效率的有效手段。目前我国正步发达国家之后尘,大力推动甩挂运输。实现“甩挂运输”的关键在于牵引车与挂车的匹配互换性。本文提出了关于“甩挂运输”车型需要解决的技术结构和匹配互换性特征参数的设计规范,供业界参考。 “Throw hanging transport ” is the world recognized as an effective means to improve the efficiency of transport and logistics. At present, our country is still behind the developed countries and vigorously promote the rejection of transportation. The key to achieving “hang-off” is the interchangeability of tractors and trailers. This paper presents the design specifications of the technical structure and matching interchangeability characteristic parameters that need to be solved for the model of “hang-off transport” for the reference of the industry.