Lubricating device of finished product conveying line

The utility model relates to a lubricating device of a finished product conveying line. A U-shaped plate is clamped to the end, close to the ground, of a chain. Grooves are formed in the parallel inner walls of the U-shaped plates; a brush roller I is rotationally connected into a groove of the U-shaped plate I; a brush roller II is rotationally connected into the other groove of the U-shaped plate; the sides, penetrating through the grooves and away from the opening ends of the U-shaped plates, of the first brush roller and the second brush roller are fixedly connected with first connecting plates. Triangular plates are rotationally connected to the tail ends of the two connecting plates I; the two connecting plates I are rotationally connected to two ends of the side wall of the long bottom of the triangular plate; a second connecting plate is rotationally connected to the side wall of the obtuse angle of the triangular plate and fixedly connected with a motor, an oil conveying tankis fixedly connected to a