The invention relates to the technical field of self-priming pumps, in particular to a
magnet-free idling-resistant integrated modular temperature-resistant and
corrosion-resistant high-lift self-priming pump. The
magnet-free idling-resistant integrated modular temperature-resistant and
corrosion-resistant high-lift self-priming pump comprises a motor and a
pump head driven by the motor to pump liquid. The motor comprises a motor shell made of plastic,
corrosion-resistant bearing seats, a corrosion-resistant
motor shaft, a rotor
assembly and a
stator. The two ends of the corrosion-resistant
motor shaft are connected into the corrosion-resistant bearing seats in a shaft mode through corrosion-resistant bearings. The rotor
assembly is formed by
coating the surface of a rotor with a rotor plastic shell, and is connected to the outer wall of the corrosion-resistant
motor shaft in a sleeving mode. The
stator is fixed to the inner wall of the motor shell and is arranged outside the rotor
assembly in a gap and sleeving mode, and the gap is 300-600 micrometers. Compared with the prior art, the
magnet-free idling-resistant integrated modular temperature-resistant and corrosion-resistant high-lift self-priming pump requires no magnet, the magnetic density gap can reach 300-600 micrometers, and the problem of narrow magnetic density gap of an asynchronous motor is solved; the plastic is used for realizing the isolation of the
pump head for circulating liquid from the motor, and the corrosion-resistant effect is achieved; and the structure is simple, transmission is simple, abrasion resistance and corrosion resistance are achieved,
self priming is realized, and the shortcomings that a pump with a magnet is complicated, prone to being damaged, prone to leaking, and not resistant toidling are overcome.