Central shaft connecting structure of loading machine

The utility model discloses a center shaft connecting structure of a loader, which comprises a front rack, a rear rack, a center shaft, a limit support, a bearing, a fastener and a lower end cover, the front rack is respectively positioned above and below the bearing, the center shaft penetrates through the two racks and the lower end cover from top to bottom, the rear rack is fixed on the outer ring of the bearing through the limit support, and the center shaft is fixed on the lower end cover through the fastener. The bearing inner ring is fixed to the center shaft, the upper end of the center shaft is fastened to the front rack located on the upper portion, the lower end of the center shaft is fastened and fixed to the lower end cover through a fastener, and the lower end of the center shaft is provided with a blocking piece used for preventing the fastener from being separated from the lower end cover. Relative looseness between the lower end cover and the central shaft can be avoided. 本实用新型公开了一种装载机的中心轴连接结