AGRICULTURAL UNIT Russian patent published in 1998 - IPC

FIELD: agricultural engineering, in particular, hinged machines requiring frequent and quick detachment under increased vibrational and impact loading conditions. SUBSTANCE: tractor is connected by tie-rods 3,4,5 of hinged system with brackets 8,9,10 of frame hanger of hinged machine 2. Each bracket is provided with row of parallel holes for receiving pins 11 of readily detachable connection. Each pin is made in the form of hollow rod with head at one end and conical power spring of equal resistance, whose coil of minimum diameter is fixed in annular groove of rod disposed at side adjacent to head. Stop and stop locking member are disposed in annular groove at other end of rod in offset relation to entrance part. Stop is formed as resilient ring. Stop locking member is connected with one end of stem, whose other end is adapted for carrying handle and return coil spring, which are positioned in stepped-diameter rod cavity. Stop locking member is joined with stop and made in the form of washer received in through diametrical slots of stem and rod. EFFECT: simplified construction, enhanced reliability in operation and increased service life. 6 cl, 9 dwg