A sweep conveyor assembly for use in a silo or granary

A sweep conveyor assembly for use in a silo or granary (70) having a floor (71) and a generally cylindrical wall (72) upstanding from the floor (71) and a discharge apparatus (1) for discharging material (74) from a centre of the floor (71) to an exterior location, the sweep conveyor (S) assembly comprising:

• a sweep conveyor (S) for transporting material (74) inside the silo (70) or granary towards the centre of the floor (71) where it can be discharged by the discharge apparatus (1),
• a holder (H),
• a link mechanism (8) for connecting the sweep conveyor (S) to the holder (H), said link mechanism (8) comprising a connection link (L) having a first end (83) and a second end (84),
• said first end (83) being configured to be connected to the holder (H) at a fixed pivot point (10) and the sweep conveyor (S) being configured to be connected to the second end (84) of the connection link (L) at a movable pivot point (11), wherein
• the connection link (L) is arranged to rotate about the fixed pivot point (10), forming a first angle (a) between the connection link (L) and an axis extending along a geometrical centre of the holder (H), the sweep conveyor (S) is arranged to rotate about the movable pivot point (11), forming a second angle (β) between the sweep conveyor (S) and the connection link (L), whereby the movable pivot point (11) is moved to increase the reach of the sweep conveyor (S), and the link mechanism (8) is arranged to control a relation between the first angle (α) and the second angle (β), and a magnitude of the first angle (α) and second angle (β) is controlled by an angular position of the sweep conveyor (S).