| 摘要 |
The suction lifter has elastic expansion bellows and a suction nozzle charged with underpressure. The nozzle (6) is positioned on the base of the inner chamber (2) of the bellows (1), which is formed by the end face of a suction body (4) above it. The nozzle apertures open outwards into the inner chamber. The top sheet of a pile is lifted by the free end (9) of the bellows. The suction surface (8) of the nozzle are not flat, but are concave or convex. The nozzle may be a separate component, fastened to the end face (5) of the suction body. |
