Medium-sized high-voltage three-phase asynchronous motor

A three-phase asynchronous motor technology, applied in asynchronous induction motors, electric components, electrical components, etc., can solve problems such as unsatisfactory strength and heat dissipation capacity, poor bearing capacity of traditional bearing structures, and uneven temperature distribution of motors. Achieve the effect of improving vibration and noise indicators, beautiful appearance, and enhancing rigidity

Inactive Publication Date: 2010-06-30
SEC ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of motor also has the following defects: (1) the temperature distribution inside the motor is uneven during axial ventilation; (2) the vibration and noise generated by the motor are relatively large during operation; (3) th

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  • Medium-sized high-voltage three-phase asynchronous motor
  • Medium-sized high-voltage three-phase asynchronous motor
  • Medium-sized high-voltage three-phase asynchronous motor

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with specific drawings and embodiments. The model of the motor in the embodiment is Y2-400-2P.

[0023] Such as Figure 1~3 As shown, the front end cover 8 and the rear end cover 13 are installed at both ends of the casing 1 through bolts, the stator 10 and the rotor 11 are installed in the casing 1, and the stator 10 is fixed on the front end cover 8 and the rear end cover 13 through bolts. above; the stator 10 is connected with a terminal box 9 through bolts; the rotor 11 is installed in the casing 1, and its front and rear ends are respectively installed on the front end cover 8 and the rear end cover 13 through the front bearing assembly and the rear bearing assembly, and the front bearing assembly and the rear bearing assembly are respectively fixed by bearing outer cover 3, bearing inner cover 7, shaft retaining ring 15 and V-shaped ring 2; the rotor 11 is equipped with an inner fan 12 and an ou...

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Abstract

The invention relates to a medium-sized high-voltage three-phase asynchronous motor. A front end cover and a rear end cover are installed at both ends of a casing; a stator is installed in the casing, fixed on the front end cover and the rear end cover, and connected with a junction box; a rotor is located in the casing, the front end and the rear end of the rotor are respectively installed on the front end cover and the rear end cover through a front bearing assembly and a rear bearing assembly, and the front bearing assembly and the rear bearing assembly are respectively fixed by an external bearing cover, an internal bearing cover, a bearing retaining ring and a V-shaped ring; an external fan is installed at the rear tail end of the rotor and is fixed by the bearing retaining ring; a fan housing is fixed on the rear end cover and covers the external fan; and a key is installed in a key slot at the front end of the rotor. The medium-sized high-voltage three-phase asynchronous motor is characterized in that the rotor is also provided with an internal fan, the internal fan is located inside the casing and fixed by the bearing retaining ring, and the internal fan, a rotor ventilating slot and a ventilation passage on the casing form an internal circulating cooling wind path. The invention has compact and reasonable structure, good heat dispersion, low operation noise, high strength, and safe and reliable operation.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a medium-sized high-voltage three-phase asynchronous motor. Background technique [0002] Y2 series medium-sized high-voltage three-phase asynchronous motor is a medium-sized high-voltage motor with a full heat sink structure. Since its appearance in the mid-1980s, this type of motor has been characterized by compact structure, small size, high operating index, low noise and small vibration. , low manufacturing cost and convenient maintenance have won the favor of users. It has become the mainstream product of medium-sized high-voltage motors in the world, and plays an important role in many industrial fields such as papermaking, electric power, water treatment, petrochemical, steel, and mining. But this type of motor also has the following defects: (1) the temperature distribution inside the motor is uneven during axial ventilation; (2) the vibration and noise generated by the mo...

Claims

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Application Information

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IPC IPC(8): H02K17/12H02K9/06H02K5/04H02K5/16H02K5/18H02K5/02
Inventor 王建裕
Owner SEC ELECTRIC MACHINERY
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