Grate cooler

The utility model discloses a grate cooler, belongs to the field of mechanical equipment, and aims to reduce the equipment failure rate. Comprising a grate bed and a pushing rod, the pushing rod is movably arranged on the grate bed through the supporting device in the longitudinal direction of the grate bed; the supporting device comprises a push rod, a support, a roll shaft and a bearing; the top end of the push rod penetrates through the grate bed and is connected with the material pushing rod; a push plate is arranged at the bottom end of the push rod; the two ends of the roller shaft are installed on the supports respectively, the inner ring of the bearing is installed on the roller shaft, and the outer ring of the bearing is movably matched with the bottom face of the push plate. And the outer ring of the bearing sleeved on the roll shaft and the push plate are in rolling operation, so that the abrasion probability caused by friction is reduced, and the failure rate caused by abrasion is reduced. And mor