CURRENT STRETCHER DEVICE FOR AGRICULTURAL IMPLEMENT

摘要

chain tensioning device for agricultural implement and agricultural implement. the present invention relates to a chain tensioning device (1) for agricultural implement, such device being able to provide an adjustment of the working tension of the chains responsible for the transmission of driving force of said implement, as well as a practical disassembly of said chains without the use of tools, providing easy maintenance of your gear system. such a device comprises at least one tensioning wheel (30), at least one first connecting arm (15), at least a second connecting arm (25) and at least one driving arm (35), the first connecting arm ( 15) being provided with a first end (100) and a second end (200), the second joining arm (25) being provided with a first end (300) and a second end (400) and the drive arm (35 ) being provided with a first end (500) and a second end (600). the first connecting arm (15) is associated with the tensioning wheel (30) through the first end (100) and pivotally associated with the second connecting arm (25) through the second end (200), the second connecting arm (25) the first end (500) of the actuating arm (35) is pivotally associated through the second end (400), the actuating arm (35) being able to move the second connecting arm (25) angularly, the angular movement of the second arm (25) being able to move the first axle connecting arm (15) angularly, the angular movement of the first axle connecting arm (15) being able to move the tensioning wheel (30) in a first direction capable of stretching the side drive chain (20), the tensioner wheel (30) being disassociated from the side drive chain (20) from a movement in the same direction as the first direction, but in the opposite direction.