Cycloid inner gearing rotor lubricating structure for vertical pump speed increasing box

The invention discloses a cycloid inner gearing rotor lubricating structure for a vertical pump speed increasing gearbox, the speed increasing gearbox comprises a middle body, an upper shell and a lower shell, an oil pool is formed at the lower part of the lower shell, a boss is arranged on the middle body, a first accommodating cavity and a second accommodating cavity are coaxially arranged on the boss in a communicating manner, and the second accommodating cavity is used for accommodating an outer rotor and an inner rotor; the input shaft is in transmission connection with the outer rotor and drives the outer rotor to rotate; the inner rotor is rotatably arranged at the bottom of the second accommodating cavity, is contained in the outer rotor, is used for rotating relative to the outer rotor and is matched with the outer rotor to form a plurality of closed cavities with variable volumes; the input pipeline and the output pipeline are respectively communicated with a starting area from small to large and a