In order to find the cause of the frequent damage of the travel wheels, overall shearer cutting process was simulated,and contact force between travel wheels and pin raw was analysed. First, the dynamic model of shearer was set up and the load transfer process from drums to travel wheels was analyzed. Then, ADAMS was used to set up the virtual prototype of shearer model, and the cutting test-bed of shearer drum was used to do the normal cutting test. The cutting load was picked, including three-axis forces and moment, and the load was applied to center of mass on the drum to complete the overall shearer dynamics simulation. The contact force beetwen travel wheels and pin row was picked. It was found that the mean and peak contact force betweem travel wheels and pin raw with load on drum is 10%-25% higher than without load on drum; the contact force of right travel on initial stage is about 6.843 times the force on steady traveling state, and the left is 5.706 times the force on steady travel state, which can provide some clues for the cause of travel wheels damage.