BULLDOZER Russian patent published in 1999 - IPC

FIELD: construction machinery and equipment. SUBSTANCE: bulldozer has undercarriage and mouldboard which by means of pushing beams and hydraulic cylinders of lifting and lowering is mounted on undercarriage. Skewing of mouldboard is achieved by means of brace and hydraulic strut which are installed on pushing beams. Compensation mechanism is made in the form of two links of cylindrical pair that is rod and cylinder. Free ends of aforesaid links are secured on mouldboard and base undercarriage by means of spherical hinge and horizontal lateral hinge. Aforesaid embodiment of bulldozer allows for enhancing its operating reliability together with use of less metal to manufacture. EFFECT: higher efficiency. 2 dwg