A mine wet water-oil separation anchor rod drilling box

Abstract

The application belongs to the field of coal mine underground supporting equipment, and discloses a mine wet type water-oil separation anchor rod drilling box, which comprises a transmission box assembly and a gland assembly, and the upper end of the transmission box assembly is fixedly connected with the gland assembly; the transmission box assembly comprises a box body, a rotating shaft and a hydraulic motor, the hydraulic motor is arranged at the lower end of the box body and is in transmission connection with the bottom end of the rotating shaft through an output shaft, and the part of the rotating shaft that extends out of the top end of the box body penetrates through the gland assembly; a first cooling water channel is arranged in the rotating shaft, and a second cooling water channel is arranged on the box body; a multiple sealing structure is arranged between the rotating shaft and the gland assembly, the multiple sealing structure divides the internal cavity of the gland assembly into a water collecting microcavity and a lubricating cavity; after the transmission box assembly is fixedly connected with the gland assembly, the second cooling water channel is in communication with the first cooling water channel through the water collecting microcavity; and the water-oil cavity separation design can effectively prevent water-oil mutual channeling, and can improve the sealing reliability and service life of the anchor rod drilling box.