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A method of assembling and welding hydraulic support side guards

A technology of hydraulic support and welding method, which is applied in the direction of welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of lower production efficiency, increase of manufacturing cost, and large welding stress, so as to achieve low production cost and solve large deformation , the effect of simple operation

Active Publication Date: 2018-10-23
ZHENGZHOU COAL MINING MACHINERY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The top beam side guard plate, shield beam side guard plate, and tail beam side guard plate in the hydraulic support are important structural parts that constitute the hydraulic support. Their common characteristics are high interchangeability requirements for finished products, easy deformation after assembly and welding, and difficulty in assembly and welding. Big
At present, the method of adding rigid support and removing the rigid support after welding is mostly adopted for the assembly welding of the side guard plate of the hydraulic support. In this welding method, the purpose of adding rigid support is to prevent deformation caused by welding between the top plate and the side plate , but due to the existence of the rigid support, the weld cannot shrink freely during the cooling process, resulting in a large welding stress at this place. After the rigid support is removed, residual deformation will occur under the action of welding stress, which cannot meet the requirements of the side guard plate after assembly. Protrudes freely and requires flame straightening, which reduces production efficiency and increases manufacturing costs

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  • A method of assembling and welding hydraulic support side guards

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Embodiment 1

[0022] like figure 1 As shown, a method for assembling and welding hydraulic support side guards, said hydraulic support side guards include side plates 4 and top plates 5, the method can be used for the top beam side guards and shield beam side guards in the hydraulic support frame , Tail beam side guard plate, etc. are assembled and welded. The method for assembling and welding the side guard of the hydraulic support includes the following steps: Step 1. Measure the width of the top plate 5, and determine the amount of reverse deformation according to the width B. In this embodiment, the width B of the top plate 5 is 220mm , The amount of anti-deformation A is 1.5mm, welding wire ER50-6 is used for welding, and the diameter of the welding wire is Φ1.2mm.

[0023] Step 2, the bottom of the top plate 5 is in contact with the side plate 4, and the top of the top plate 5 tilts to move the reverse deformation amount A.

[0024] Step 3. Weld the first weld seam 1 along the outer...

Embodiment 2

[0037] The main difference between this embodiment and Embodiment 1 is that: the width of the top plate is different, resulting in different welding parameters. In this embodiment, the width of the top plate is 350 mm, and the anti-deformation amount A is 4 mm. When welding, welding wire ER62-G is used, and the diameter of the welding wire is Φ1.2 mm, and then assembled and welded.

[0038] When welding the first weld seam, the welding current is 280A, the welding voltage is 30V, and the welding speed is 350mm / min; the welding of the bottom welding is completed.

[0039] When welding the second weld seam, the welding current is 300A, the welding voltage is 32V, and the welding speed is 380mm / min; the filling welding is completed.

[0040] When welding the third weld seam, the welding current is 300A, the welding voltage is 32V, and the welding speed is 380mm / min; the cover welding is completed.

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Abstract

The invention provides an assembling welding method of a side guard plate of a hydraulic support. The side guard plate of the hydraulic support comprises a side plate and a top plate. The assembling welding method comprises the following steps: measuring the width of the top plate, and determining reverse deformation according to the width; enabling the bottom of the top plate to be in contact with the side plate; obliquely moving the top of the top plate to change the reverse deformation; and then welding three welded joints along a part, which is in contact with the top plate, of the side plate, and naturally cooling after welding is finished, wherein the top plate deforms along the side plate so that the top plate is perpendicular to the side plate. The assembling welding method of the side guard plate of the hydraulic support has the advantages of scientific design, simplicity in operation, low production cost, reliable production quality and small deformation after welding.

Description

technical field [0001] The invention relates to a welding method for a side guard plate of a hydraulic support, in particular to an assembly welding method for a side guard plate of a hydraulic support. Background technique [0002] The top beam side guard plate, shield beam side guard plate, and tail beam side guard plate in the hydraulic support are important structural parts that constitute the hydraulic support. Their common characteristics are high interchangeability requirements for finished products, easy deformation after assembly and welding, and difficulty in assembly and welding. big. At present, the method of adding rigid support and removing the rigid support after welding is mostly adopted for the assembly welding of the side guard plate of the hydraulic support. In this welding method, the purpose of adding rigid support is to prevent deformation caused by welding between the top plate and the side plate , but due to the existence of the rigid support, the we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/16
CPCB23K9/16
Inventor 付金良李福永谷建军程相榜冯志飞喻会新张延可
Owner ZHENGZHOU COAL MINING MACHINERY GRP