Reasons for Failure of Cut-Off Teeth of Coal Miners and Roadheaders and Improvement Measures
Cutting teeth used in coal miners and roadheaders are prone to failure problems.Correctly analysing the form of failure of interceptor teeth is the key to improve the efficiency of the use of interceptor teeth.Failure of interceptor teeth is mainly in the following forms:wear failure,fracture failure,cutter head dislodgement failure,corrosion failure.For these forms of failure,it is necessary to improve and optimise the material,structure and surface treatment of the teeth,such as the use of new materials,change the structure of the teeth,strengthen the surface treatment and other methods,so as to extend the service life of the teeth.At the same time,people also need to strengthen the maintenance and replacement of the teeth,timely detection and treatment of the failure of the teeth,to ensure the normal operation of the coal mining machine and roadheader,and improve the production efficiency of coal mines.
NETL
NSTL
万方数据
