BENCH FOR TESTING EXCAVATING/TRANSPORTATION MACHINES OF SHOVEL TYPE Russian patent published in 1995 - IPC

FIELD: mining machine building. SUBSTANCE: bench has a bed and rotary table with excavator with working equipment fastened on it. Shovel loading system is made in the form of two vertical metallic plates and a hollow sleeve connected to the shovel, the thrust bearings of which are rested on the metallic plates using releasing mechanism and create resistance along motion path of the shovel. EFFECT: actual controllable load through all possible range of excavation process may be obtained using computer to set a load on the release mechanism. 2 dwg