SPRAYER BOOM Russian patent published in 2007 - IPC A01M7/00 A01C15/00 

FIELD: agricultural engineering.

SUBSTANCE: invention relates to devices for treatment of field crop with fertilizer and pesticide solutions. Proposed sprayer boom consists of mounting device and carrying metal sections: central one made in form of flat truss, two middle ones and two extreme ones, hinge connected to each other. Sections of boom are connected with set by hinge mounting of central section of boom on rear of mounting device by means of two connecting clevises forming swinging suspension of boom. Middle and extreme section of sprayer boom are made in form of carrying beams reinforced in vertical plane by tie-rods braces whose rigidity is adjusted by turnbuckles. Tie-rod braces arranged on middle section are installed at angle of 5-6 degrees to horizontal ends of section to center. Tie-rod braces arranged on extreme section are installed at angle of 4 to 5 degrees to horizon from end mated with middle section to center, and at angle of 2 degrees, from center to end. Sections are hinge-connected around vertical axles and are provided with brackets for fastening hydraulic cylinders designed for setting the sections in operating and traveling positions, and brackets fixing sections in operating position.

EFFECT: reduced specific metal usage, action of torsional and bending moments on boom when sprayer in operating position moves in the field, improved quality of treatment of field crop, no adverse effect on environment.

2 cl, 3 dwg