| 摘要 |
A magnetic fluid combined air lifting device is provided to lift the rail for lifting easily without the excessive pneumatic pressure. A magnetic fluid combined air lifting device comprises a main supporter(10) supporting the weight of the ship, a supporter(20) for lifting in which the hole where the pneumatic pressure and magnetic fluid are passed in inside is built up, a pneumatic pressure providing apparatus(70) providing the pneumatic pressure, an apparatus for supplying magnetic fluid(80) providing the magnetic fluid, an elastic body(30) which prevents that the pneumatic pressure is discharged to outside while increasing to the top, an elastic body supporter(40) supporting the elastic body, a sealant(50) which blocks to the first that for the term of works, is gone to outside when the pneumatic pressure is provided, a magnetic coil(60) fixed to the sealant.
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