WORKING EQUIPMENT OF TRENCH-PIT MACHINE AND SUPPORT STRUCTURE FOR WORKING EQUIPMENT Russian patent published in 2009 - IPC E02F5/06 

FIELD: construction.

SUBSTANCE: working equipment of trench-pit machine installed on basic chassis 1 comprises the following components mounted on bearing frame 2 - chain working element 3 with cutting teeth, rotor thrower 4, mechanisms of cardan drive 5, hydraulic cylinders of lifting-lowering 7 and swinging 8 of working element. To transfer bearing frame 2 with working element 3 from transport position into working one and back to transport one, there are hydraulic cylinders 6 provided. Working element is additionally equipped with mechanism of angle variation in its transverse incline relative to ground arranged in the form of fixed support 9, which is rigidly connected to body of basic chassis 1. Movable platform 10 is installed on support 9, with working equipment being hingedly connected to each other in transverse direction, with at least two lever double-arm mechanisms, each equipped with actuating hydraulic cylinders and installed with the provision of possibility of movable platform 10 rotation relative to fixed support 9 in one or other sides for setting of working element 3 in vertical position. At the same time to create a hinged joint for movable platform 10 rotation relative to fixed support 9, hydraulic fixators 13 are rigidly fixed at the sides of the latter with the possibility for their stems to interact with holes of lugs 14, welded to sides of movable platform 10. At the same time, support elements in one of versions are arranged in the form of rolling presses 16.

EFFECT: improved efficiency of equipment operation at slopes and reduced resistance to movement.

8 cl, 9 dwg