FIELD: machine building.
SUBSTANCE: invention relates to slider-crank straight guiding mechanisms and is used, in particular, in work elements of construction, agricultural, meliorative and other vehicles with chain drive, and variable width of clamping. Mechanism contains base, two cranks, guide with slider, connected with it first pair of piston rods, second pair of piston rods, connected by common hinge joint of the first pair of piston rods and slider, two equal levers each hingedly connected by one end with piston rod of the second pair, and by another end with crank, two symmetrical piston rods of third pair, connected by one end with another end of the piston of the first pair, two forth pair piston rods equal to length of crank and connected by one end with another end of the cranck of third pair. Besides it contains two piston rods of fifth pair, each connected by one end with another end of forth pair piston rod, by another end rigidly connected with its hinge joint located in common hinge joint of crank link with middle of piston rod of the first pair such that antiparallelogram is created with halves of piston rods of the first pair. At that piston rods of the third pair create progressive links not projecting beyond the mechanism contour. Mechanism has two vertical cantilever rods, each rigidly connected with hinge joint of the piston rod of the fifth pair, two pairs of links with same length connected by one ends of the hinge joints, through which rods pass and slide, and by another ends is hingedly connected with cranks and first piston rods such that create with them two symmetrical diamonds.
EFFECT: expansion of functional capabilities of the mechanism.
1 dwg
