Full side bearing bearing-type railway truck bogie

摘要

A full side bearing bearing-type railway truck bogie comprises two side frame assemblies (12), a bolster assembly (15) and two sets of center spring hanging devices (14). A centre guide hole (15a) which is matched with a cylindrical upper center plate (16) of a truck body is formed in the center of the bolster assembly and used for transmitting the longitudinal force and the horizontal force of the truck body. The two ends of the bolster assembly are provided with lower side bearing mounting holes (15b) those are formed corresponding to the upper sides of the center spring hanging devices (14). Lower side bearings (13) corresponding to upper side bearings (17) on the two sides of a truck body are provided in the lower side bearing mounting holes (15b) for transferring the vertical load of the truck body. The bogie has the advantages of less weight, high stability of truck side rolling vibration, high critical speed during empty-load state and better curve passing ability during heavy-load state.