Fine adjustment device of split head and split head with fine adjustment device

The utility model discloses a fine adjustment device of a split head and the split head with the fine adjustment device. The fine adjustment device comprises a mounting plate, an adjusting screw rod and adjusting nuts, the mounting plate is fixed at the bottom of the split head, a mounting hole for the adjusting screw rod to penetrate through is formed in the mounting plate, and the adjusting nutsare screwed on the upper side and the lower side, corresponding to the mounting plate, of the adjusting screw rod. The number of the adjusting screws is multiple, a plurality of installation holes are formed in the installation plate at intervals, the adjusting screws are installed in the installation holes in a one-to-one correspondence mode, and the lower ends of the adjusting screws are all fixed to the bottom plate. The problems that in the shield construction process, the masts are not easy to level, and the adjusting procedure is complex are solved, the structure is simple, and applicability is high. And the co