In this paper, the structure and the technical parameters of a heat-proof semi-trailer van are presented. The design principle of the van body and the variable axle-base is described with test results. 本文介绍了JT9130XBW型厢式保温半挂车的结构形式与主要技术参数,可变轴距结构设计、厢体结构设计与试验结果。