Endocytic shaft-hole connection type explosion-proof three-phase asynchronous motor

Abstract

The invention belongs to the industrial field, and particularly relates to an endocytic shaft-hole connection type explosion-proof three-phase asynchronous motor. In view of the existing problems of inconvenient installation of front and rear end covers and danger of fan clamping, the invention proposes the following scheme: the motor comprises an explosion-proof housing, a power rotating shaft istransversely arranged in the explosion-proof housing, the power rotating shaft is fixedly sleeved with a rotor, the inner wall of the explosion-proof housing is fixedly connected with a stator matched with the rotor, two side walls of the explosion-proof housing are respectively provided with a front end cover and a rear end cover, the side walls of the front end cover and the rear end cover areprovided with circular holes, bearings are fixedly connected in the two circular holes respectively, the power rotating shaft runs through the two bearings, and the power rotating shaft are fixedly connected with the inner walls of the two bearings. According to the invention, the front and rear end covers are firstly clamped to the explosion-proof housing and then installed, thereby being easy and labor-saving. In addition, a fan is fixed by microgroove screws and the like, the structure is simple, the operation is convenient, and the rotation safety of the fan is guaranteed.

Description

technical field [0001] The invention relates to the field of industrial technology, in particular to a flameproof three-phase asynchronous motor connected with an endocytic shaft hole. Background technique [0002] The three-phase asynchronous motor is a type of motor that is powered by a 380V three-phase AC power supply (with a phase difference of 120 degrees) at the same time. Since the rotor and the stator rotating magnetic field of the three-phase asynchronous motor rotate in the same direction and at different speeds, there is a Different rate, so it is called a three-phase asynchronous motor. Compared with a single-phase asynchronous motor, a three-phase asynchronous motor has a simple structure, is convenient to manufacture, has good operating performance, can save various materials, and is cheap, while the explosion-proof three-phase asynchronous motor is in It is often used in some places where the working environment is relatively dangerous, such as in coal mines, ...

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a flameproof three-phase asynchronous motor with endocytic shaft hole connection, which solves the problem that the front and rear covers are generally installed by fixing bolts, but the front and rear covers are generally made of metal and have a large weight. It is necessary to hold the front and rear covers with one hand, and install the fixing bolts through the mounting base into the threaded grooves with the other hand. This is very laborious, and installation with one hand will also cause the fixing bolts to tilt, which is inconvenient to adjust. In addition, the fan of the three-phase asynchronous motor is usually clamped on the power shaft, so when the power shaft drives the fan to rotate, it is dangerous and will cause harm to the staff.

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