A Study Of Kinematics And Dynamics Analysis For The Sampling Apparatus Of The Coal Sampler

The automatic coal sampling machine that this paper researches is a mobile engineeringvehicle．The object that the automatic coal sampling machine sampling is merchantablecoal．With the widespread use of the coal sampling machine，the automatic coal samplingmachine bring extensive benefits． The mechanization sampling takes the place ofhandsampling is the inexorable trend．The sampling apparatus of the automatic coal sampling machine is the most importantpart of the coal samling．the rationality and veracity of the sampling apparatus have a directbearing on the sampling process of the automatic coal sampling machine．The papersynthesizes the mechanism theory and working principle of the sampling apparatus andmakes optimization analysis of the size of the sampling arm combined with powerfulcomputing capabilities of MATLAB．Then，it constructs a three dimensional characteristicmodel of the sampling apparatus with SolidWorks．This paper researches the kinematics and dynamics of the sampling apparatus withADAMS．It analyses the force on the sampling drill when the sampling drill reaches thefarthest position，gets the answer of the dynamic stress on the hydraulic cylinders andcompares the difference in the force between the dynamic stress and static stress．At last，thepaper finds the biggest force on the hinge joint when the sampling drill works．The resultprovides a strong data support on the strength check and structural improvement of thesampling apparatus．...