Research On Force-enhancing Characteristics And Self-cleaning Performance Optimization Of Bionic Gears In Deep Sea Mining Machine

With the depletion of onshore mineral resources,the development of marine mineral resources is of great significance to China's economic development.The cutting-edge technology currently developed for marine mineral resources is the design of mining systems,and the deep sea mining machine is an important part of the mining system,which is related to the efficiency of the mining system.How to walk efficiently and safely on deep-sea subsoil is the focus of deep-sea mining research.In this paper,aiming at the physical characteristics of deep seabed soil,the research on the bionics and self-cleaning performance optimization of the gears of the mining machine provides an important theoretical basis for the design of the gears of the deep sea mining machine.The research results obtained in this paper are as follows:1.Based on the shape of the buffalo hoof,extract the geometric characteristics of its low walking resistance and design the bionic gear of the deep sea mining machine.Taking the distance between the bionic gear tooth tip and the curvature change point and the bionic radius of curvature as parameters,through the indoor soil trough traction test test,the process of different tooth shape parameters of the different shear strength deep seabed soil simulation soil is studied.Therefore,the relationship between the force-increasing gear force increase mechanism and the maximum traction force and tooth profile parameters shows that for different tooth-shaped gear teeth,the bionic gear teeth have more walking on the simulated soil of the deep seabed soil than the straight gear teeth.High traction.As the tooth tip distance and radius of curvature of the bionic gear decrease,the traction force of the gear increases.Combined with the variation law of traction force,the bionic tooth shape parameters with maximum traction force are obtained,which provides a theoretical basis for improving the walking efficiency of the concentrator.2.In this study,the macroscopic surface modification of the gears was carried out based on the corrugated surface structure of the crucible to reduce the adhesion of the deep seabed soil.Traction tests were carried out on the bionic corrugated gears of different tooth parameters by the track adhesion characteristic test bench,and the variation law of the adhesion force was analyzed to obtain the bionic corrugated gears with the best tooth parameters.For the best waveform bionic gears,the soil shear strength and the depth of the gears are selected as the design variables.The results show that the adhesion force of biomimetic crawler teeth increases at first and then decreases with the increase of the depth of crawler teeth entering the soil.For bionic corrugated plates with different waveform parameters,the bionic waveforms with a wave function of y=2sin(x/10)(waveform amplitude A=2,frequency ?=0.1)have minimal stickiness when walking on deep seabed soil.With strength,it has the best self-cleaning performance.3.Based on the self-made test platform for the traction traction adhesion characteristics,the traction tooth was tested in the soil trough with deep seabed soil,and the surface reshaping of the gear was studied under different plating times and soil shear strength.The influence law on the adhesion between the deep sea bottom soil and the gear teeth.The results show:.The gears that have been meticulously reshaped have only a small adhesion.The adhesion of the gears tends to decrease with the increase of the number of plating of the teeth.In the soil with higher shear strength,the surface is changed.The self-cleaning effect of the tooth is maximally optimized.The micro-surface modification of the gear provides data support for the track design of the deep sea mining machine and improves the mining efficiency of the deep sea mining machine.