Traction motor for large sized tractor AC electric transmission system

A technology for traction motors and tractors, which is applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve the problems that cannot meet the installation conditions, transmission mode and cooling mode of large tractors, reduce the distance between two bearing supports, reduce motor vibration and noise, etc. Problems, to achieve reasonable and reliable structural design, prolong service life, reduce vibration and noise

Inactive Publication Date: 2016-11-09
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 t

Method used

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  • Traction motor for large sized tractor AC electric transmission system

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Embodiment Construction

[0009] The traction motor used in the AC electric transmission system of a large tractor includes a machine base 1. The left and right sides of the machine base 1 are provided with a concave front end cover 2 and a rear end cover 3 in the middle, and a hollow The inner spline shaft 4, and the left and right sides of the hollow inner spline shaft 4 are provided with 6222-2Z bearings 5; the outer wall of the machine base 1 is provided with an annular waterway, and there are several spray holes on the annular waterway, and the machine base 1 and the front end A double-layer O-ring is arranged between the cover 2 and the rear end cover 3; the hollow inner spline shaft 4 is provided with a rotor punch 6, and the rotor punch 6 is covered with a stator punch 7, and the front side of the rotor punch 6 The hollow inner spline shaft 4 is provided with a fan 8, the front cover 2, the rotor punch 6, and the rear end cover 3 are all provided with ventilation holes; the stator punch 7 is pro...

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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 ...

Claims

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Application Information

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IPC IPC(8): H02K7/08H02K11/25H02K5/20H02K9/06H02K1/12H02K1/22
CPCH02K7/083H02K1/12H02K1/22H02K5/20H02K9/06
Inventor 梁黎君雷平振雷晓林丁涛田爱玲
Owner CRRC YONGJI ELECTRIC CO LTD
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