DOI: 10.11799/ce202602028
Research on optimization of cutting parameters and rock-breaking characteristics of cutter combinations for shaft boring roadheader
YAO Man
TANG Chongmao
YANG Zhijiang
ZHU Bin
Abstract：With the increasing depth of coal resource exploitation in China,the limitations of traditional shaft construction methods in terms of efficiency and safety have become increasingly evident.Focusing on a cutting-type shaft boring machine,we systematically analyzed the influence of the effects of cutting drum rotation speed,traction speed,and milling depth on cutting loads,power,and specific energy consumption using finite element dynamic simulation.Additionally,the rock-breaking characteristics of pick cutters and shell cutters in hard rock with boulder formations were compared.The results indicate that the horizontal and vertical cutting loads decrease with higher rotation speed,while cutting power and specific energy consumption increase significantly.Increasing traction speed leads to linear growth in load and power,but specific energy consumption peaks at a traction speed of 23 mm/s.Deeper milling reduces specific energy consumption but requires balancing the impact of load fluctuations on equipment lifespan.Therefore,appropriately reducing rotation speed,lowering traction speed,and increasing milling depth can significantly optimize specific energy consumption.In hard rock with boulder formations,shell cutters effectively isolate boulders and reduce load impact,while conventional picks are more efficient in pure hard rock.
Keywords：shaft boring roadheadercutting parameter optimizationcutter combinationrock-breaking efficiencyspecific energy consumption
Publication Date：2026-02-20
Online Publishing Date：2026-03-23(First online date of this platform, not the publication date of the document)
Pages：10( 225-234 )