1. Reparação e substituição da tela. A tela é feita de chapa de aço ou ferro perfurado. Quando a tela estiver gasta ou quebrada por matéria estranha, se o dano não for grande, pode ser reparada por rebite ou soldadura; se a área estiver danificada, deve-se substituir a nova tela. Ao instalar a tela, o lado com rebarba deve estar voltado para dentro, o lado brilhante para fora, e a tela e o quadro da tela devem estar firmemente fixados. Quando a tela de anel for instalada, a junta de sobreposição deve estar na direção de rotação para evitar que o material fique preso na junta.
Second, the lubrication and replacement of the bearings. The moinho de milho is cleaned after every 300 hours of operation. If the bearing is oil lubricated, it is advisable to fill the bearing housing clearance by 1/3 when adding new oil, and the maximum is not more than 1/2. Just tighten the capped oil cup cover a little before operation. When the moinho de milho bearing is seriously worn or damaged, it should be replaced in time, and pay attention to strengthen lubrication; if using tapered roller bearing, pay attention to check the axial spacing of the bearing to keep it 0.2-0.4 mm. If there is discomfort, increase it. Reduce the paper pad at the bearing cover to adjust.
Third, the replacement of the claws and hammers. Among the pulverizing parts, the pulverizing claws and the hammer pieces are the wearing parts in the moinho de milho, and are also the main components affecting the pulverizing quality and productivity. The pulverizing claws and the hammer pieces should be replaced in time after being worn. When the jaw crusher replaces the claws, the disc should be pulled out first. Before pulling out, first open the round nut lock piece on the back of the disc, use a hook wrench to unscrew the round nut, and then pull the disc out with a special puller. In order to ensure the balance of the rotor operation, it is necessary to pay attention to the complete set of replacement when changing the teeth. After the replacement, static balance test should be done to make the moinho de milho work stable. Be sure to tighten the nut when assembling the jaws, and be careful not to miss the spring washer. The qualified parts should be selected when changing the teeth. The weight difference of the single teeth should be no more than 1.0-1.5 grams.