| 摘要 |
FIELD: graders, bulldozers, or the like with scraper plates or ploughshare-like elements. ^ SUBSTANCE: motor grader chassis structure comprises articulated main frame comprising underframe with rear driving axle and spine beam. One end of spine beam is pivotally connected with underframe, another end is secured to working tool fastened to front axle. Spine beam rotation mechanism is made as two hydraulic cylinders. Additional hinge to connect the second end of spine beam with driving axle and working tool rotation mechanism are arranged near front axle. The working tool rotation mechanism is made as two hydraulic cylinders. Angle of rotation of working tool fastened to driving axle and rotated by additional hinge and angle of working tool rotation mechanism rotation are 25 - 35°. The hinges are formed as four coaxial orifices formed in two fork-like support members and connected one with another by pin. ^ EFFECT: increased efficiency due to improved maneuverability of grader operation in restricted space. ^ 2 cl, 3 dwg |
