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Strengthening method of base assembly welding sequence

A group welding and sequential technology, which is applied in welding equipment, earthwork drilling, manufacturing tools, etc., can solve the problems that the column socket cannot be covered, the source of weld cracking, and the load-bearing area can be reduced, so as to improve and optimize the welding process parameters , Improve the welding process sequence, improve the effect of stability

Active Publication Date: 2022-04-01
CHINA COAL BEIJING COAL MINING MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the known assembly welding sequence is according to the method of marking the weld seam in the drawing design. This method will cause many welding joints, especially in the lower end cover plate of the column socket and the area of ​​the column socket. The increase in the number of joints increases three Stress concentration reduces the bearing area, affects the strength of the weld, reduces the toughness of the joint, and makes the joint brittle
What's more, the joints are subjected to mechanical loads, resulting in the formation of weld cracking sources
[0004] A large number of welds are welded before the column sockets are welded, which will cause welding deformation of the main ribs and ribs under the influence of stress, so that the column sockets cannot be placed on the cover plate. When the force of the column sockets is transmitted to the cover plate, the cover plate is in the air at this time state, directly lead to the occurrence of column socket bottoming

Method used

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  • Strengthening method of base assembly welding sequence

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specific Embodiment approach

[0023] The base group welding order of the present invention is enhanced, and the preferred embodiment is:

[0024] The base assembly includes a top plate, a pad, a cover plate, a rib, a rubber, a bending plate, a main guide, a column nest, a bridge, an overall assembly, and a welding order comprises:

[0025] One welding:

[0026] First, assemble the main tene and the top plate and weld the weld;

[0027] Then, the side of the bridge and the left side of the bridge and the left side of the bridging plate are welded, and the remaining unbained weld is only soldered, and the same column nest is continuously welded;

[0028] Secondary welding: set the pads and weld the pad;

[0029] Talking three times: The cover is good, and the cover solder is welded by the pillar nest, and the remaining unbained weld is only soldered, and the same column nest is continuously welded;

[0030] Four welding:

[0031] First, the column, the ribs are combined, and the ribs and the hoe-shaped pillars a...

specific Embodiment

[0037] Overall assembly, welding order:

[0038] Such as figure 1 Distance

[0039] Once, 1 first, the outer exterior tendons are assembled and welded to weld;

[0040] 2 is covered by the pad and the left side of the bridge and the left end of the bond plate and the upper left end of the support is welded. The remaining unbelled weld is only soldered, and the same column nest is continuously welded.

[0041] Second, 1 pad group is good and welded.

[0042] Three times, 1 cover group, and will weld the cover solder by the pillar nest, and the remaining unbained weld is only soldered, and the same column nest is continuously welded.

[0043] Four times, 1 pillar, the ribs, the ribs and bending plates are welded;

[0044] 2 Remaining bridge right end weld, remaining cover weld, left ends of the remaining support.

[0045] Five times, 1 bending plate group is good, the bending plate weld and the remaining welds of the pillarside are welded.

[0046] The present invention has the adva...

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Abstract

The invention discloses a sequential strengthening method for assembly and welding of a base. Firstly, the main reinforcement and the top plate are assembled and the weld seam is welded through multiple welding; The vertical welds are well welded, and the welds that are not covered by the backing plate and cover plate before the column socket are only ground welded. Solder well. The weld on the upper surface of the column socket and the main reinforcement is an unequal fillet weld. The number of welds at the connection between the bottom plate and the main reinforcement is increased, and the force on the column socket is transmitted to the bottom plate through the welds between the backing plate and the main reinforcement, and the rigidity of the box composed of the backing plate and the bottom plate under the column socket is enhanced. The circumference of the backing plate is welded with the front and rear bridges and the main reinforcement respectively, which can withstand the downward load impact, can share part of the support resistance, weaken the force strength of the bottom plate, and reduce the probability of the base going through the bottom.

Description

Technical field [0001] The present invention relates to a combined intelligent manufacturing hydraulic bracket technology for coal mines, and is specifically involved in a base set of rendering. Background technique [0002] Comprehensive mining intelligent manufacturing hydraulic brackeck is an important support for coal mining coal, and the base column is an important support accessory of hydraulic brackets, which has a huge working pressure. [0003] At present, the well-known group welding sequence is a method of weld the weld in the drawing, which has multiple welded joints, especially within the lower end cover and the column area, and increases three. To the stress concentration, the load area is reduced, affecting the strength of the weld, and reduces the toughness of the joint, and the joint is brittle. What is even more lifetime, resulting in a source of weld. [0004] A large number of welds are welded before the group welding pillars, which can cause the main guide, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02E21D23/04
CPCB23K31/02E21D23/04E21D23/049
Inventor 高嵩刘爱民高美聪艾丽月
Owner CHINA COAL BEIJING COAL MINING MACHINERY
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