spray bar assembly and agricultural spraying machine comprising the same

摘要

spray bar assembly and agricultural sprayer machine comprising the same. The invention proposes a set of spray bars (10) including a first (11) and a second spray bar (12) pivotable with respect to the first spray bar (11) by means of a horizontal pivot axis (13). . pivoting movement is produced by a hydraulic actuator (14) coupled to the first spray bar (11) and at a point of a pivoting movement driving mechanism (15) which comprises a first (151) and a second pivoting arm (152). According to the invention, the coupling of the second arm (152) to a pivot support (124) is arranged such that a pin (162) has a stroke in an oblong hole (17) between an upper limit (172). and a lower limit (174). the second arm (152) is pivotally coupled to a tie rod (18) which is pivotably coupled to a lock pin (19). the lock pin (19) is slidably housed in a guide sleeve (20) attached to the second spray bar (12). open position of the second spray bar (12), when the pin (162) is in contact with the upper limit (172) of the oblong hole (17), the lock pin (19) is inserted into a lock bushing (21 ) fixed to the first spray bar (11) to prevent the pivoting movement of the second spray bar (12), and when the pin (162) is in contact with the lower limit (174) of the oblong hole (17) , the lock pin (19) is disengaged from the lock bushing (21) so as to release the pivoting movement of the second spray bar (12). The invention also proposes an agricultural spraying machine comprising at least one spray bar assembly (10). 1/1