The utility model relates to the field of single-screw pumps, in particular to a single-
screw pump with a
stator convenient to replace, which comprises a pump seat, a motor is fixed on the pump seat, a material
pipe is integrally arranged on one side, back to the motor, of the pump seat, the
stator is mounted at the end of the material
pipe, and an end cover is mounted at the end of the
stator. A rotor is fixed to the output end of the motor through a coupler and penetrates through the material
pipe to be arranged on the inner side of the stator, the connecting
assembly is installed between the material pipe and the end cover and comprises an installation plate fixed to the side wall of the material pipe, and threaded rods are hinged to the four corners of the installation plate through rotating shafts; according to the single-
screw pump with the stator convenient to replace, the special connecting
assembly is designed, and the special connecting
assembly comprises the mounting plate, the
threaded rod, the mounting groove, the nut and other structures, so that the stator replacement process becomes simple and rapid. The fixing of the end cover by the connecting assembly can be unfastened only by unscrewing the nut and moving the
threaded rod out of the mounting groove, and then the end cover is taken down to replace the stator, so that the maintenance efficiency is greatly improved.