Analysis of Factors Affecting Mechanical Properties of Coal Mining Machine Cut-off Teeth
As a key component in the cutting process of coal mining machine,the cut-off teeth will be subject to huge impact force and violent vibration during the cutting process of coal wall,and this kind of irregular vibration will aggravate the wear and damage of the cut-off teeth.Therefore,in order to solve the problem of excessive wear of the cut-off teeth in the cutting process of the coal mining machine,we set up a simulation model to study and analyse the factors affecting the mechanical performance of the cut-off teeth of the coal mining machine.From the simulation results,the change of traction speed and drum speed has a significant effect on the change of tooth force,and at the same time,the amplitude of tooth force is the largest in the middle of the coal body,which indicates that the wear of the tooth in the coal mining machine is due to the improper speed regulation of traction speed and drum speed,or the collision of the middle of the coal body with the gangue.
NETL
NSTL
万方数据
维普
