Rotary irradiation mechanism for small-dose fixed-point irradiation experiment

The utility model belongs to the technical field of irradiation, and relates to a rotary irradiation mechanism for a small-dose fixed-point irradiation experiment, which is arranged in an irradiation chamber and comprises a suspension conveyor, and the suspension conveyor is provided with a clamping jaw (5) which conveys a box body (8) into the irradiation chamber from a feeding window (2) and conveys the box body (8) out from a discharging window (7) after the box body (8) is irradiated by an irradiation source (4); the suspension conveyor is fixed in the irradiation chamber through a stand column (3), the end part of the suspension conveyor is provided with a steering device (6), and a traction chain of the suspension conveyor is connected with a clamping jaw (5) to drive the clamping jaw (5) to move; the steering device (6) comprises channel steel (902), a hanging beam vertical plate (11) fixed below the channel steel (902) and a rack (1101) fixed on the outer side of the hanging beam vertical plate (11),