Oil rod anti-corrosion centralizer with side arm body adjusting function and method

The invention discloses a sucker rod anti-corrosion centralizer with a side arm body adjusting function and a method, and relates to the technical field of mineral exploitation. The sucker rod anti-corrosion centralizer comprises a sucker rod body, the outer surface of the sucker rod body is fixedly sleeved with a centralizing lantern ring, and a containing groove is formed in the inner surface of the centralizing lantern ring; the centralizer has the advantages that the friction force between the centralizer and the inner wall of an oil pipe is reduced, meanwhile, the centralizer can automatically adjust and counteract the friction force according to the friction force, the energy loss of an oil pumping unit is reduced, the oil pumping efficiency is guaranteed, and the oil pumping efficiency is improved. The side arm body can adapt to oil rod bodies of different shapes, the side arm body can be tightly attached to the oil rod bodies all the time, oscillation gaps between the oil rod bodies and the side arm b