MULTI-BOTTOM PLOUGH WITH VARIABLE WIDTH Russian patent published in 2016 - IPC A01B3/46 A01B15/14 A01B73/00 A01B73/06 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building, particularly to semi-cantilever ploughs with variable width. Multi plough with variable width of gripping contains frame with wheels. Frame consists of two parallel main bars with longitudinal planks, on which there are working elements. Working elements are pivotally connected through cylindrical axis by means of cranks with longitudinal plates. Two main parallel frame bars pivotally connected to each other in form of parallelogram with their opposite ends through hydraulic cylinders. On diagonal of parallelogram is central traction bar pivotally connected at ends with each of parallel main bars and adjoining main bars of hydraulic cylinder. In middle part of central traction bar is pivotally mounted double-arm lever. Two con-rods are articulated by one end to lever. Second end of con-rods is articulated with lengthwise plates. In head part of central traction bar capture width variation mechanism is connected to control unit on tractor. Mechanism of change of width of cut includes installed on traction bar remote hydraulic cylinder and slider, as well as fixed on slider cylindrical or cam and lever-actuating device. Lever-actuating device consists of extra hydraulic cylinder and coupled with retainer. Slide is articulated with rod of hydraulic cylinder and is articulated with one of basic bars and adjacent to latter hydraulic cylinder.

EFFECT: such design solution enables to reduce labour intensity using two-line sectional ploughs with parallel arrangement of working members.

1 cl, 5 dwg