POWER TAKE-OFF TRANSMISSION DEVICE AND CRANE

A power take-off transmission device (100) includes: an electric motor (110) including an electric motor output end (111); a hydraulic pump (120) including a pump input end (121); a mounting rack (130) provided with a mounting stop (1301) penetrating the mounting rack (130) in an axial direction; and the electric motor output end (111) and the pump input end (121) are connected to each other via the mounting stop (1301). The power take-off transmission device (100) forms a radial limit to the electric motor output end (111) and/or the pump input end (121) by the mounting stop (1301), thereby ensuring that the electric motor output end (111) and the pump input end (121) are coaxially installed in the axial direction, which can avoid vibration, abnormal noise and oil leakage problems, thereby ensuring the reliability of the power take-off transmission device.