Stress–strain analysis of bucket blade of underground mining LHD loader

One of the ways to increase the efficiency of using mine loading and hauling machines is the reasonable use of anti-wear linings on the bucket blade. The purpose of this work is to analyze the existing designs of anti-wear solutions for protecting the blades of buckets of mine loading and hauling machines and scientific substantiation of the choice of the optimal design. The study used 4 models of anti-wear pads applied to triangular and trapezoidal bucket blades. To model the research objects, the KOMPAS-3D three-dimensional design system was used. The calculation of safety factors, total stresses and displacements in the bucket blade was carried out in the CAE system for automated calculation and design of mechanical equipment APM WinMachine. The stress-strained state of the bucket blade was obtained when inserted into soils of three categories: sandy; sandy loams and loams; heavy loams and clays. An analysis of the use of anti-wear pads for soils with different specific cutting resistance was carried out. Research has shown that when introduced into heavy loams and clays, it is effective to use protection kits with stacked plates for a triangular bucket blade, and protection with wide teeth for a trapezoidal blade. When inserting into soil with low cutting resistance, such as sand, using a solid plate to protect the blade is sufficient.

Zasypkina S. A., Pashko A. D. Stress–strain analysis of bucket blade of underground mining LHD loader. MIAB. Mining Inf. Anal. Bull. 2025;(1-1):92-105. [In Russ]. DOI: 10.25018/0236_1493_2025_11_0_92.

S.A. Zasypkina¹, Cand. Sci. (Eng.), Assistant Professor, Ural State Mining University, 620144, Ekaterinburg, Russia, e-mail: zasypkina.s@m.ursmu.ru,
A.D. Pashko¹, Cand. Sci. (Eng.), Assistant Professor, e-mail: a.pashko@tu-ugmk.com,
¹ UMMC Technical University, 624091, Verkhnyaya Pyshma, Russia.

S.A. Zasypkina, e-mail: zasypkina.s@m.ursmu.ru.

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