Traction motor for large sized tractor AC electric transmission system

Abstract

The invention disclose a traction motor for a large sized tractor AC electric transmission system and addresses the inability of current traction motors to meet mounting conditions, transmission methods and cooling methods of large sized tractors. The left and right sides of a pedestal are provided with a front end cover and a rear end cover which are provided with a hollow internal spline rotation shaft therebetween. The left and right sides of the hollow internal spline rotation shaft are both provided with a 6222-2Z bearing. The external wall of the pedestal is provided with a ring-shaped water passage which is provided with a plurality of sprinkling holes thereon. The pedestal, the front end cover and the rear end cover are provided with a double-layer O-shaped seal rings therebetween. The hollow internal spline rotation shaft is provided with a rotor punching thereon. The rotor punching is coated with a stator punching. The hollow internal spline rotation shaft is provided with a fan thereon. The front end cover, the rotor punching and the rear end cover are provided with through holes thereon. The stator punching is provided with a stator winding thereon, and the end part of the stator winding is provided with a PT100 high temperature sensor. According to the invention, the traction motor meets mounting requirements of large sized tractors.

Description

technical field [0001] The invention relates to an asynchronous traction motor with frequency conversion and speed regulation, in particular to a traction motor for a large-scale tractor AC electric drive system. Background technique [0002] At present, the trend of high-power tractors in the world is to replace hydraulic transmission systems with AC transmission systems, while traditional traction motors cannot meet the installation conditions, transmission methods and cooling methods of large tractors. Contents of the invention [0003] In order to solve the problem that the existing traction motor cannot meet the installation conditions, transmission mode and cooling mode of the large tractor, the invention provides a traction motor for the AC electric transmission system of the large tractor. [0004] The present invention is realized by adopting the following technical scheme: the traction motor used in the AC electric transmission system of a large tractor includes ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing traction motors cannot meet the installation conditions, transmission mode and cooling mode of large tractors, the present invention provides a traction motor for large tractor AC power transmission system

[0005] The motor is installed horizontally, and its front end cover and rear end cover adopt an inner concave structure, which reduces the distance between the two bearing supports, reduces the deflection of the rotating shaft, and reduces the vibration and noise of the motor. At the same time, the cooling water is sprayed from the annular waterway when the motor is working Drenching, taking away the heat of the stator, overcoming the problems of existing traction motors that cannot meet the installation conditions, transmission mode and cooling mode of large tractors

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