Tire width adjusting mechanism for single-wheel and double-wheel rotation detection of airplane

The tire width adjusting mechanism comprises an adjusting bottom plate, tire width adjusting structures are installed on the adjusting bottom plate, the tire width adjusting structures are movably installed at the left end and the right end of the adjusting bottom plate respectively, and an arc groove is formed in the portion, between the two tire width adjusting structures, of the adjusting bottom plate. A tire width adjusting structure is movably mounted on the adjusting bottom plate, a connecting base is integrally mounted on the tire width adjusting structure, a detection driving part is mounted on the connecting base, and a width positioning part is mounted on the adjusting bottom plate above the tire width adjusting structure. The detection driving part is used for carrying out belt rotation detection, the adjustment sliding plate in the tire width adjustment structure is matched with the width positioning part, so that the detectable tire width range can be conveniently and flexibly adjusted, the detec