Bearing protection mechanism of horizontal chain crusher

The utility model discloses a bearing protection mechanism of a horizontal chain crusher, which belongs to the technical field of chain crushers and comprises a bearing body, the bearing body comprises an inner ring, an outer ring, a retainer and a roller, and a maintenance mechanism is arranged on the bearing body; the maintenance mechanism comprises a sealing sleeve arranged on the outer side of the retainer, the sealing sleeve is fixedly connected with the outer ring in a sealed mode, an oil inlet pipe and an oil outlet pipe are vertically distributed on the sealing sleeve, a hydraulic pump and a negative pressure pump are arranged on the oil inlet pipe and the oil outlet pipe respectively, and a pressure detection mechanism is arranged on the outer side of the retainer. A lubricating oil tank and a waste oil collecting tank are respectively arranged at the other ends of the oil inlet pipe and the oil outlet pipe; according to the utility model, the structure arranged in the bearing is matched with the mai