| 摘要 |
A working attachment of a rotor excavator includes a bucket-less rotor (2) installed on the frame (1) with cutting elements (3) placed at periphery of the rotor, those are fixed in given order on cross traverses (4) of the central disc (5) of the rotor, the rear unloading unit (6) with berm formers (7), and the front unloading unit (8) of trough type. The bottom of each of the troughs (9, 10) of the front unloading unit (8) has the first far from the rotor section (13) that is placed closer to horizon compared to vertical, the second closer to the rotor section (14) that is placed closer to vertical compared to horizon, and the third intermediate section (15) that in continuous way connects to each other two first sections (13, 14) of the bottom. New is the fact that the second section (14) of each trough (9, 10) of the front unloading unit (8) is arranged as a knife-ploughshare, this has the front edge (18) that at the level of earth is arranged as sharpened and is used for cutting earth and for profiling side walls of the trench, and working surface (23) that is used for direction of earth that is displaced by rotor from the zone of the face for unloading, and its insulation from interaction with earth of the side walls of the trench. This makes it possible to increase flow-through capacity of the troughs at decrease of power losses for displacement of earth, and to provide possibility of profiling side walls of the trench, in particular with formation of slopes, and to decrease in such a way power consumption and to improve quality of excavation of earth. |
