Generator top bearing box

The utility model relates to the technical field of wet acetylene production, in particular to a generator top bearing box which comprises a generator body, a rotating shaft is arranged in the generator body, a bearing box sleeved outside the upper end of the rotating shaft is fixedly mounted on the inner side of the upper portion of the generator body, and two bearings are sequentially sleeved between the inner side of the bearing box and the outer side of the upper end of the rotating shaft from top to bottom. The inner side of the lower portion of the bearing box is fixedly provided with an annular table, the outer side of the rotating shaft corresponding to the upper end of the annular table is sleeved with a first oil seal in a sealed mode, and the outer side of the rotating shaft corresponding to the lower end of the annular table is sleeved with a second oil seal in a sealed mode. The bearing is reselected, so that the load resistance is improved, at least one lubricating oil channel is formed, lubrica