Urban rail vehicle through passage top plate knuckle bearing replacement tool

The utility model provides an urban rail vehicle through passage top plate joint bearing replacement tool, and relates to the field of mechanical design and manufacturing. An urban rail vehicle through channel top plate knuckle bearing replacement tool comprises a positioning device and a pushing device, the positioning device comprises a bearing mold, a plurality of stepped holes are formed in the bearing mold, the stepped holes comprise inner holes and outer holes, and the inner holes are used for abutting against knuckle bearings; the pushing device comprises a push rod slidably arranged in the stepped hole, the center line of the push rod coincides with the center line of the stepped hole, and the push rod can reciprocate along the center line of the stepped hole. According to the urban rail vehicle through channel top plate knuckle bearing replacement tool, operation can be simpler and more convenient, the degree of dependence on an operator is reduced, and the working efficiency of the tool can be great