Design of Comprehensive Test Bench for Coal Winning Machine
HONG Meijuan
LI Yaoyao
Abstract：A test bench power system based on the actual working conditions of the coal winning machine underground was designed,and the loading methods of the single arm,double arm,and traction parts of the coal winning machine were discussed.A loading method using internal electrical feedback of the frequency converter was developed,which converts mechanical energy into electrical energy to load the tested equipment.The test bench system controls the frequency converter through a computer to regulate the operation of the driving motor and loading motor.At the same time,in order to reduce the impact of start-up on the power grid,soft start fuzzy control technology was adopted to switch to power frequency supply after reaching the rated speed.The comprehensive test bench of the coal winning machine provides a new idea for independent loading of the rocker arm and traction part,supporting whole machine debugging,electronic control system function testing,electrical module verification,and whole machine factory capability evaluation under different voltage levels.
Keywords：coal winning machinecomprehensive test benchvariable frequency loading
Publication Date：2025-04-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 74-77 )