| 摘要 |
A tumbler screening machine (1) comprises a drive shaft (4) which can be rotated by means of a motor (2); and a base plate (12) which is connected to said drive shaft and on which a foot plate (18) is arranged with an offset pin (20) fixed thereto. Said foot plate can be displaced in relation to the base plate (12) by means of first adjusting means (14) and the angle of the foot plate can be modified by means of second adjusting means (16). The offset pin (20) is rotationally connected to a screen structure (24) which is held in place by a support device (26). Said screen structure performs an oscillating and projecting movement when the base plate (12) rotates. The inventive tumbler screening machine (1) is characterised in that the second adjusting means (16) comprise a rotating shaft (16a) with an eccentrically mounted shaft section (36) on which the foot plate (18) or the base plate (12) are supported in such a way that when the shaft (16a) turns, the angle of the foot plate (18) is modified in the predetermined manner. |
