Method for improving strength of loader bucket

A technology for loaders and buckets, applied to mechanically driven excavators/dredgers, arc welding equipment, manufacturing tools, etc., can solve problems such as loss of use value, damage to work reliability, fracture cracks, etc.

Inactive Publication Date: 2015-05-06
GUANGXI LIUZHOU YUTIAN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, post-welding deformation correction is not economical and seriously damages its working reliability.
In addition, fracture cracks often occur at the welds between the bucket teeth on both sides of the loader bucket and the guard plate, and these cracks even extend to all the weld structures of the entire bucket lip (the flat plate with the bucket teeth), causing serious damage. Fracture damage reduces the performance of the bucket
The fracture cracks that have been formed are gradually expanded by the vibration of the equipment and the external force of the operation, and finally a large area of ​​fracture cracks is formed to reduce or lose the use value of the bucket

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] To solve the problem of the bottom strength of the bucket, the bucket hinge connected with the lifting arm is used to extend down to the front end of the bottom of the bucket, and the two sides are sealed with wedge-shaped plates to form a box-shaped structure, which greatly increases the strength of the bottom of the bucket. It extends upward to the reinforced angle steel to form a skeleton structure, which greatly improves the rigidity and strength of the existing buckets.

[0013] Use reinforcement plates to connect and weld the upper part of the bucket wall and the side wall, and the size of the angle steel used for welding the upper part of the bucket wall along the length direction of the bucket body is enlarged to improve the rigidity of the upper part.

[0014] According to the characteristics of bulk material shoveling operations, user experience feedback in use, and statistical calculation and analysis results, etc., the bottom of the bucket wall adopts a 7-deg...

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Abstract

The invention relates to a method for improving the strength of a loader bucket. The bucket connected to a lifting arm is hinged and extends downwards to the front end of the bottom of the bucket, the two faces are sealed through wedge-shaped plates, and a box structure is formed; a shovel plate extends upwards to reinforcing angles, and thus a framework type structure is formed; the upper portion of the bucket wall and the side walls are connected, welded and fixed through reinforcing plates, and the upper portion of the bucket wall is welded in the length direction of the bucket body; a 7-degree upwarping structure is adopted for the bottom of the bucket wall; abrasion-resistant plates, corner protection bucket teeth, a main cutter plate made of abrasion-resistant cast steel materials and side cutter plates with the bottoms widened are installed, and the measure of welding abrasion-resistant reinforcing plates to side plates is taken to relieve abrasion on parts, pone to abrasion, of the bucket. According to the method for improving the strength of the loader bucket, when the loader bucket is used in the continuous high-intensity working condition, the fault phenomena of open weld, cracking, excessive abrasion and material scattering in the lifting process can be avoided.

Description

technical field [0001] The invention relates to a method for improving the strength of a loader bucket, which belongs to the technical field of machinery. Background technique [0002] When the loader bucket is used in continuous high-strength conditions, failures such as open welding, tearing, excessive wear, and boring scattering during lifting will occur. This is caused by the use of super-strength material density. The strength safety factor of the bucket Insufficiency is one of the main reasons. In general, the welding of the bucket support will inevitably produce welding residual deformation that cannot be ignored. However, post-welding deformation correction is not economical but also seriously damages its working reliability. In addition, fracture cracks often occur at the welds between the bucket teeth on both sides of the loader bucket and the guard plate, and these cracks even extend to all the weld structures of the entire bucket lip (the flat plate with the bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F3/40B23K9/04B23K9/173
Inventor 罗继才江迪
Owner GUANGXI LIUZHOU YUTIAN MACHINERY
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