Motor and high-pressure pump assembly

Abstract

The invention relates to a motor and high-pressure pump integrated assembly structure. The motor and high-pressure pump integrated assembly structure comprises a motor which comprises a shell, a stator, a rotor and a bearing, wherein the stator and the rotor are correspondingly arranged in the shell; the stator comprises a stator core and a stator winding. A groove is formed in the inner circumference of the stator iron core in the radial direction of the circumference, and the stator winding is embedded in the groove; the rotor comprises a rotor iron core, a rotating shaft and cast aluminum squirrel cage bars, wherein the cast aluminum squirrel cage bars are arranged on the rotor iron core, the rotating shaft penetrates through the rotor iron core to be connected with the rotor iron core, and one end of the rotating shaft is connected with the shell through a bearing. The structure also comprises a high-pressure pump which comprises a pump body and a high-pressure pump shaft, wherein one end of the high-pressure pump shaft is connected with the pump body, and the other end of the high-pressure pump shaft is connected with the other end of the rotating shaft. There is only one bearing in the motor, so the mechanical loss and noise are greatly reduced, the size is reduced, and the efficiency of the motor is further improved.

Description

technical field [0001] The invention relates to the technical field of electric motors, in particular to an assembly of electric motors and high-pressure pumps. Background technique [0002] The motor and the high-pressure pump on the motor and high-pressure pump assembly of the prior art are independent entities respectively, please refer to Figure 4 As shown, since the bearing in the motor is installed on the casing through two bearings, the high-pressure pump shaft in the high-pressure pump is installed on the pump body through a bearing, and when the motor and the high-pressure pump assembly are integrated, the motor inside The bearing in the axial direction is equivalent to being positioned by three bearings, and excessive positioning occurs, causing the motor and high-pressure pump assembly to run with loud noise, large volume, and low efficiency. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an integrat...

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Problems solved by technology

[0002] The motor and the high-pressure pump on the motor and high-pressure pump assembly of the prior art are independent entities respectively, please refer to Figure 4 As shown, since the bearing in the motor is installed on the casing through two bearings, the high-pressure pump shaft in the high-pressure pump is installed on the pump body through a bearing, and when the motor and the high-pressure pump assembly are integrated, the motor inside The bearing in the axial direction is equivalent to being positioned by three bearings, and excessive positioning occurs, resulting in loud noise, large volume, and low efficiency of the motor and high-pressure pump assembly.

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