FIELD: machine building.
SUBSTANCE: invention relates to the machine boom to handle materials. The boom arrangement has a boom hingedly connected with the machine frame. The boom has a pair of side plates, an upper plate and a lower plate which are rigidly interconnected. The upper plate has a pair of slits which pass through it. An arm is hingedly connected with the end of the boom. There is a mounting block within the central part of the side plates. A pair of boom hydraulic cylinders are attached between the frame and the mounting block. A pair of arms cylinder mounting plates with a gap inbetween are rigidly mounted on the mounting block. Each mounting plate passes through one corresponding slot. The arm cylinder is attached between the mounting plates.
EFFECT: invention ensures boom weight decrease.
10 cl, 7 dwg
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