Automatic assembling and disassembling device for pins at bulkhead gate connecting rod of large hydropower station

The utility model belongs to the technical field of gate connecting rod pin loading and unloading auxiliary tools, and particularly relates to an automatic loading and unloading device for a pin at a bulkhead gate connecting rod of a large hydropower station, which comprises a traveling mechanism, a balancing weight, a lifting mechanism, a placing mechanism and a control mechanism, comprising a transverse expansion piece, a fourth supporting plate, an H-shaped steel wheel, a first hydraulic station, a stepping motor and a vertical speed change device, and the lifting mechanism is arranged above the fourth supporting plate and comprises a hydraulic lifter, a second hydraulic station and a first supporting plate; the placing mechanism comprises a pin placing plate, a servomotor, a third hydraulic station, a drag hook, a second supporting plate, a third supporting plate, a supporting pipe, a supporting rod and an auxiliary supporting block. The control mechanism comprises a display touch screen, a single-chip mi