我国现时生产的保温车转向架有两种型式,一种是B_(19)型机械保温车(以下简称机保车)用的73型转向架,其结构与客车202型转向架相似,转向架的许多零部件,如基础制动装置和液压减振器等均为202型的借用件,但车轴、弹簧、摇枕吊和摇枕吊轴等零部件又与202型的有所不同。另一种是B_6型车顶冰箱式保温车(以下简称冰保车)用的转8A(滚)标准货车转向架。这两种转向架的动 There are two types of insulated bogies currently produced in China. One is the Type 73 bogie used for B 19 mechanical insulated vehicles (hereinafter referred to as “BOC”). Its structure is similar to that of a bus 202 bogie. The bogie Many of the parts, such as the basic brake and hydraulic shock absorbers, are type 202 borrowers, but the axle, spring, bolster and bolster hanger shafts and other parts are different from the 202 model. The other is the type B6 car refrigerator insulation (hereinafter referred to as ice bikes) to turn 8A (roll) standard truck bogie. Both bogies move