Crawler pin dismounting device for maintenance of tracked vehicle

The utility model discloses a crawler pin remover for crawler maintenance, which comprises a support rod, a second support plate and a jack, the outer side of the support rod is provided with an adjusting structure, one side of the support rod is provided with a first support plate, the top end of one side of the first support plate is provided with a fixing mechanism, and the other side of the support rod is provided with a second support plate. A replacement structure is arranged on one side of the second supporting plate. A worker presses a clamping pin by hand to compress a telescopic spring to enter a fixing block, and then the fixing block is pulled to move in a connecting shell, so that the height of a placing plate is adjusted, and a lifting pin is stopped when being aligned to the position, needing to be detached, of a crawler belt on the placing plate; and when extrusion force disappears, telescopic springs rebound to push clamping pins to be clamped into corresponding clamping grooves to be fixed,