Carriage bottom cleaning device

A carriage bottom cleaning device belongs to the technical field of carriage cleaning. The cleaning device comprises a mounting rack, a cross roller and a positioning pin shaft, a mounting flange plate is arranged at the top of the mounting rack, the cross roller is rotationally mounted below the mounting rack, a scraping plate, a rotary cleaning brush, a dust collection opening and a high-pressure nozzle are arranged at the four ends of the cross roller respectively, and positioning grooves are machined in the right sides of the four ends of the cross roller respectively. And one end of the positioning pin shaft penetrates through the mounting rack and then is arranged in the positioning groove. The utility model aims to solve the problems that most of the existing cleaning equipment at the bottom of the carriage has a single function, different cleaning equipment needs to be manually carried and replaced for cleaning in the whole cleaning process, and time and labor are wasted, and can realize the functions