An amphibious shielded permanent magnet high-speed multistage pump

Abstract

The invention discloses an amphibious shielded permanent magnet high-speed multistage pump, which has the advantages of good heat dissipation of the motor, high head and high efficiency, and can be used underwater and on land for multiple purposes. The main points of the technical scheme are as follows: It includes a pump casing, a motor assembly and an impeller. The motor assembly includes a motor barrel, a stator, a rotor and a rotor shaft. The pump casing is set on the outside of the motor barrel, and an upper connection seat and a lower connection seat for fixing the motor barrel are arranged inside the pump casing. A water cavity is formed between the pump casing and the motor barrel. The lower end of the rotor shaft is provided with a wheel shaft. The impeller is a multi-stage structure and is installed on the lower end of the rotor shaft. It is the water inlet, the water inlet, the water passage chamber and the pressure discharge chamber are connected in sequence, and the water inlet is provided with a bottom connection seat, which includes a shaft sleeve part adapted to the wheel shaft and a threaded connection port for external connection. The invention is applicable to the technical field of water pumps.

Description

technical field [0001] The invention belongs to the technical field of water pumps, in particular to an amphibious shielded permanent magnet high-speed multistage pump. Background technique [0002] Existing water pumps usually have a single function and can only be used in specific occasions and cannot be used universally, such as submersible pumps, which need to be used underwater, such as self-priming pumps, which need to be used on land, so it is inconvenient to use; , During the use of the water pump, the motor will generate a lot of heat, and the overheating of the motor will easily cause damage to the internal components. Therefore, it is necessary to improve the existing water pump. Contents of the invention [0003] The purpose of the present invention is to provide an amphibious shielded permanent magnet high-speed multi-stage pump, which has the advantages of good heat dissipation of the motor, high lift and high efficiency, and can be used for multiple purposes...

AI Technical Summary

Problems solved by technology

[0002] Existing water pumps usually have a single function and can only be used in specific occasions and cannot be used universally, such as submersible pumps, which need to be used underwater, such as self-priming pumps, which need to be used on land, so it is inconvenient to use; , During the use of the water pump, the motor will generate a lot of heat, and the overheating of the motor can easily lead to damage to internal components, so it is necessary to improve the existing water pump

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