| 摘要 |
The invention suggests an apparatus (3) comprising a support frame, a gear drive (5), and a treatment bar (6) that is moveable parallel to a planar surface (2), when the gear drive (5) is positioned over the surface (2), and a drive unit for moving the treatment bar (6), wherein the gear drive (5) comprises a central wheel (8), an intermediate wheel (9) engaging with the central wheel (8), a bar driving wheel (10) engaging with the intermediate wheel (9), and a flange (11) carrying the intermediate wheel (9) and the bar driving wheel (10), wherein the central wheel (8) is fixed to the support frame, and the flange (11) is attached to the support frame being revolvable around a pivot point (17) of the central wheel (8), wherein the treatment bar (6) is fixed to the bar driving wheel (10) and protrudes radially from a pivot point (18) of the bar driving wheel (10), wherein a radius of the bar driving wheel (10) is three times a radius of the central wheel (8), and wherein a length of the treatment bar (6) is between three and eight times a flange radius (16) from the pivot point (17) of the central wheel (8) to the pivot point (18) of the bar driving wheel (10). The invention further suggests a filter device having at least one such apparatus (3), and methods for operating such a filter device. |
