Modularized track travelling mechanism

The invention relates to the field of track robots and discloses a track travelling mechanism of a robot. The track travelling mechanism comprises a track chassis, track main bodies and track modules. The track main bodies are mounted on the track chassis and provided with mounting grooves capable of being used for mounting of the track modules. The track modules are composed of basic parts capable of being matched with the mounting grooves of the track main bodies and functional parts designed on the basis of different terrains. At present, tracks of track robots can be only suitable for one kind or several kinds of specific terrains due to the defects of the tracks of the robots, and thus under the conditions of unknown terrains, terrains with large changes, special environments and the like, the robots cannot be selected suitably and used; according to the robot with the modularized track travelling mechanism, the corresponding track modules can be put on temporarily according to the site terrain environme