Welding repair method and system for hub of wind generating set

A wind turbine, welding repair technology, applied in welding equipment, welding equipment, auxiliary welding equipment and other directions, can solve problems such as difficult repair, wheel hub cracks, etc., to achieve the effect of convenient operation, less welding defects, and avoiding post-weld cracking

Active Publication Date: 2021-07-27
YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for welding and repairing hubs of wind power generators, so as to solve the problem that the existing hubs of wind power generators are difficult to repair after cracks occur.

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  • Welding repair method and system for hub of wind generating set
  • Welding repair method and system for hub of wind generating set

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with specific embodiments with reference to the accompanying drawings.

[0050] It should be noted that components in the various figures may be shown exaggerated for the purpose of illustration and are not necessarily true to scale. In the various figures, identical or functionally identical components are assigned the same reference symbols.

[0051] In the present invention, unless otherwise specified, "arranged on", "arranged on" and "arranged on" do not exclude the presence of intermediates between the two. In addition, "arranged on or above" only means the relative positional relationship between two parts, and under certain circumstances, such as after the product direction is reversed, it can also be converted to "arranged under or below", and vice versa Of course.

[0052] In the present invention, each embodiment is only intended to illustrate the solutions of the present invention, and sho...

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Abstract

The invention provides a welding repair method and system for a hub of a wind generating set. The method comprises the steps that a groove is machined in the crack position of the hub; a welding rod is baked; and the groove is directly subjected to filling welding through the baked welding rod.

Description

technical field [0001] The invention relates to the technical field of wind power generators, in particular to a method and system for welding and repairing hubs of wind power generators. Background technique [0002] The hub is an important part of the wind turbine, which directly affects the smooth operation of the entire wind turbine. The hub not only supports large components such as blades and pitch systems, but is also affected by the aerodynamic push and resistance of the surrounding air. The traditional wheel hub is made of QT400-18 ductile iron. During use, the wheel hub will crack due to stress. In order to ensure the safety of use, the wheel hub must be replaced. The weldability of ductile iron castings is poor, and conventional welding processes will produce welding cracks, and welded joints with excellent mechanical properties cannot be obtained. Ductile iron castings with serious defects such as cracks are generally scrapped directly. [0003] Since the whee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K37/00B23P6/00
CPCB23K31/02B23K37/00B23P6/00
Inventor 范志国许存官陈伟梁韦翰高猛李爱平吕晓春闫承军郝龙宇
Owner YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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