Belt conveyor guide roller

The utility model relates to a belt conveyor guide roller which comprises a roller body and a roller shaft. The two ends of the inner wall of the roller body are fixedly provided with bearing bases respectively. The bearing bases are provided with bearings in a matched mode. The bearings are fixedly arranged on the bearing bases through bearing end covers. The roller shaft is arranged in the roller body and stretches out of the two ends of the roller body. The two ends of the roller shaft are sequentially matched with holes of the bearing bases, the bearings and the bearing end covers from inside to outside. Gaps between the inner ends of the bearing end covers and the outer ends of the bearings form oil injection chambers. The bearing end covers are provided with oil injection holes communicated with the oil injection chambers. The oil injection holes are provided with butter nozzles or oil plugs in a matched mode. According to the belt conveyor guide roller, the oil injection holes are formed in the bearing end covers, machining is facilitated, the roller is not prone to damage and deformation, and oil injection is conducted easily.