Slight impact wear test device for heat transfer tube of steam generator of nuclear power plant

The utility model discloses a slight impact wear test device for a heat transfer tube of a steam generator of a nuclear power plant. The slight impact wear test device consists of an electromagnetic vibration excitation driving device, a leveling lifting device, an environment control device, a data acquisition control system and a frame, wherein the main structure of the electromagnetic vibration excitation driving device is as follows: an electromagnetic vibration exciter is hung below a middle beam of the frame, the end part of the electromagnetic vibration exciter is connected with an upper fixture for clamping a block-shaped upper test piece through a force transducer, one end of a non-contact type displacement sensor is fixed on the upper fixture, and the other end of the non-contact type displacement sensor is fixed on the vibration exciter; the structure of the leveling lifting device is as follows: a V-shaped groove lower fixture for clamping the heat transfer tube of the steam generator is fixed on