Lubricating device for rocker bearings of steeply-inclined coal mining machine

The invention provides a lubricating device for rocker bearings of a steeply-inclined coal mining machine. The lubricating device comprises a shell, bearings, a gear, a spindle, a rocker arm inner cavity and a first pressure plate, wherein the rocker arm inner cavity is arranged in the inner wall of the shell; the gear is arranged in the rocker arm inner cavity; the spindle is arranged in the gear; the first bearings are arranged on the circumferential surface of the gear; a first sealing gasket is arranged at the left end faces of the first bearings; a first lower oil tank is arranged on theleft end face of the first sealing gasket; a first upper oil tank is arranged on the outer circumferential surface of the first lower oil tank; and a first oil conveying mechanism is arranged in the first upper oil tank and the first lower oil tank. Compared with the prior art, the lubricating device has the following beneficial effects that by additionally arranging the first upper oil tank, thefirst lower oil tank, a fi