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Frequency conversion motor and engineering machine with same

A frequency conversion motor and frequency converter technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of large frequency converter volume, large motor power, insufficient installation of motors and frequency converters, etc., to achieve compact structure and save energy. Cost, effect of reducing the number of parts

Inactive Publication Date: 2012-12-05
三一集团有限公司北京分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high power of the motor used in this type of construction machinery, the volume of the matching frequency converter also becomes larger with the increase of power
As a result, there is not enough space to install motors and frequency converters in construction machinery, such as coal plows

Method used

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  • Frequency conversion motor and engineering machine with same

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Effect test

Embodiment Construction

[0018] The only accompanying drawing of the present invention shows a cross-sectional view of a variable frequency motor according to a preferred design solution of the present invention.

[0019] from figure 1 As can be seen in , the frequency conversion motor includes a motor unit 1 and a frequency converter unit, wherein the motor unit 1 has a drive end bearing 2, a drive end cover 3, a stator 4, a rotor 5, a non-drive end bearing 6, and a non-drive end cover 7 and the non-drive end inner cover 8. The frequency converter unit has a frequency conversion control cabinet 9 and a line reactor 10 .

[0020] In this embodiment, the stator 4 includes a stator core and a machine base. The stator core is formed by laminating silicon steel sheets. The pressure plates are installed at both ends of the core. Weld with the pressure plate. The winding of the stator 4 is a loose-embedded winding, and the corona-resistant enameled wire with an insulation grade of H is used for the loose...

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Abstract

The invention relates to a frequency conversion motor comprising a motor unit (1) and a frequency converter unit, wherein the motor unit (1) is provided with a drive end bearing (2), a drive end cover (3), a stator (4), a rotor (5), a non-drive end bearing (6) and a non-drive end cover (7); the frequency converter unit is integrated with the motor unit (1) into a whole, wherein a frequency conversion control cabinet (9) of the frequency converter unit is arranged on a bed designed into a part of the motor unit (1), and an incoming line reactor (10) of the frequency converter unit is arranged in the bed. Besides, the invention also relates to a coal planer with the frequency conversion motor.

Description

technical field [0001] The invention relates to a frequency conversion motor and a construction machine with the frequency conversion motor. Background technique [0002] Many different types of variable-frequency motors are disclosed in the prior art. However, most of these variable-frequency motors are based on selecting a suitable motor or frequency converter according to system requirements, and then matching the frequency converter or motor. In this way, it is difficult to achieve an ideal match between the parameters of the motor and the frequency converter, and it is easy to cause waste of at least one of the functions. In addition, both the frequency converter and the motor are independent products, that is to say, the frequency converter and the motor are designed independently. At the beginning of the design, no special improvement is made to its structure according to other factors such as the application environment. When the frequency converter is selected acco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/00H02K5/04H02K9/197H02K9/19H02K11/30
Inventor 李娜
Owner 三一集团有限公司北京分公司