Variable-pitch double-screw rotor set

The utility model discloses a variable-pitch double-screw rotor set. The variable-pitch double-screw rotor set comprises two rotor bodies and two rotating rods installed on the rotor bodies. Wherein the rotating rods are symmetrically and rotationally connected to the top and the bottom of the rotor body; wherein two rotating rods in a transverse row form a group, a limiting mechanism is mounted on each group of rotating rods, each limiting mechanism comprises a limiting block, two limiting grooves are formed in each limiting block, and the rotating rods are mounted in the limiting grooves through limiting pieces; by using the arranged limiting mechanism, the limiting mechanism and the rotating rod are combined for use, so that the effect of limiting the rotor body can be achieved, the phenomenon that the position of the rotor body deviates due to vibration generated by an engine is avoided, the stability of the rotor body can be improved, and hidden dangers during use are reduced; and the stability of the ro