Performance evaluation method for continuous mining device of mine based on discrete element and finite element dynamic coupling calculation

Abstract

The invention discloses a performance evaluation method of a mine continuous excavating device based on discrete element and finite element dynamic coupling calculation. The performance evaluation method comprises the following steps: establishing a continuous excavating device model; the method comprises the following steps: calculating the pressure of bulk particle materials on an excavating hopper and a supporting structural member by adopting a discrete element method on the basis of the actual material property and the material pile form of the bulk materials, and taking the pressure as a load input condition during finite element analysis; the method comprises the following steps: determining the acting force of the bulk material on an excavating device, performing stress and strain analysis on an excavating structure body by adopting a finite element method, analyzing and evaluating the strength of the excavating device according to stress and strain analysis results, and evaluating and analyzing the excavating efficiency according to the volume of the excavated bulk material. Compared with the prior art, the load of the mining excavating device is researched under different working conditions, and the mechanical property and the working efficiency of the mining excavating device can be evaluated dynamically and systematically in the whole process and serve as a basis for guiding design.

Description

technical field [0001] The invention belongs to the technical field of mining equipment, and in particular relates to a performance evaluation method of a continuous mining device for mining, which is mainly applied to mining mining equipment. Background technique [0002] In the material yard and mining engineering, the materials loaded and unloaded by the mining bucket wheel excavation device involve various types, including coal, ore, sand and gravel, etc. Different materials have different densities and action coefficients, and the load on the hopper is also different. ;The mining bucket wheel excavation device is mainly used in the excavation and loading and unloading of bulk materials in the mine, which is complicated in the actual working process, including various loads such as torsion, bending, impact, vibration, etc. The conventional excavation device design is mostly based on static analysis results. Approximate evaluation of excavation hopper design, while dynami...

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Problems solved by technology

[0004] The present invention aims to provide a method for evaluating the performance of continuous excavation equipment in mines to solve the problems of low operating efficiency of excavation equipment

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