WORKING EQUIPMENT OF BULLDOZER Russian patent published in 2009 - IPC E02F3/76 

FIELD: construction, road engineering.

SUBSTANCE: invention is related to earth-moving transport machines with working element of mouldboard type. Working equipment of bulldozer comprises cutting knife with rigidity box, flexible element arranged in the form of elastic metal plate, which is rigidly fixed by its lower end to cutting knife, box-like mouldboard. In box-like mouldboard there is an elastic cushion installed, against which metal plate and pushing bars are rested. Box-like mouldboard is rigidly connected to box of rigidity. Composite mouldboard is hingedly connected to pushing bars. Vessels of mouldboard position control devices arranged in the form of electromagnetic executive device are attached to upper part of mouldboard. Electromagnetic executive device consists of forward electromagnet with suction anchor and mounted on end surface of electromagnet body of normally closed block electromagnet brake. Extensible element of position control devices are connected to pushing bars by means of lugs.

EFFECT: minimised resistance to soil cutting and knife friction against soil.

4 dwg