Self-lubricating drill box

A self-lubricating drill box comprises a drill box body and a hydraulic motor, a driving shaft is installed in the drill box body, a first limiting ring, a first bearing, a second limiting ring and a second bearing are sequentially arranged on the periphery of the driving shaft, a lubricating oil inlet channel and a sliding oil return channel are formed in the hydraulic motor, and a self-lubricating oil channel is formed in the driving shaft. Lubricating oil in the self-lubricating oil channel can lubricate the driving shaft and the two bearings, when the drill box rotates at a high speed, hydraulic oil can form circulation in the drill box for lubrication, the maintenance time of workers on the drill box is shortened, the labor intensity of the workers is reduced, and meanwhile the service life of the whole drill box is prolonged. 一种自润滑钻箱，包括有钻箱体和液压马达，钻箱体内安装有驱动轴，驱动轴的外周依次设置第一限位环、第一轴承、第二限位环和第二轴承，液压马达内设有润滑进油通道和滑回油通道，驱动轴上开设有自润滑油道，自润滑油道内的润滑油能对驱动轴和两个轴承进行润滑，在钻箱进行高速旋转时，让液压油能在钻箱内形成循环进行润滑，减少工人对钻箱维护的时间，降低工人的劳动强度，同时提高整体钻