Dismountable auxiliary replacement device applied to cooling tower fan bearings

The invention belongs to the technical field of mounting of cooling tower fan bearings and particularly relates to a dismountable auxiliary replacement device applied to cooling tower fan bearings. The dismountable auxiliary replacement device applied to cooling tower fan bearings comprises a locking assembly, telescopic assemblies, supporting assemblies, foldable and dismountable supporting plates and winding mechanisms, wherein the outer side of each of a first semicircular fixing sleeve and a second semicircular fixing sleeve is connected with a telescopic assembly; the lower part of each of the telescopic assemblies on two sides is rotatably connected with a supporting assembly; the lower part of each of the telescopic assemblies on the two sides is connected with a foldable and dismountable supporting plate; the supporting assemblies are used for supporting the foldable and dismountable supporting plates; the winding mechanisms are mounted on the first semicircular fixing sleeve and the second semicircul