Shaft body sealing mechanism, wheel set for crane and crane

Compared with the prior art, the shaft body sealing mechanism comprises the shaft body; the first bush and the second bush are sequentially arranged on the outer side of the shaft body in a sleeving mode, and the first bush and the second bush abut against each other; the through cover is arranged on the outer side of the second bushing in a penetrating manner; the sealing device is arranged between the through cover and the second bushing; and the check ring is arranged on the through cover and is used for limiting the sealing device from being separated. According to the technical scheme, compared with the prior art, lubricating grease is not prone to leaking, frequent maintenance is not needed, environmental pollution caused by leaked lubricating grease is reduced, and the wheel set for the crane and the crane with the shaft body sealing mechanism have the same technical effects. 本申请公开的轴体密封机构，与现有技术相比，轴体；依次套设在所述轴体外侧的第一衬套和第二衬套，所述第一衬套和所述第二衬套相互抵触；穿设于所述第二衬套套外侧的通盖；设置在所述通盖与所述第二衬套之间的密封装置；设置在所述通盖上用于限制所述密封装置脱离的挡圈。本申