The invention discloses a magnetic liquid sealing device with heat conduction rods and a heat dissipation sleeve. The magnetic liquid sealing device comprises a shaft shell, a rotating shaft, two bearings, two pole shoes, a permanent
magnet, the heat conduction rods and the heat dissipation sleeve, wherein a shaft chamber is arranged in the shaft shell, the rotating shaft is rotatably arranged inthe shaft chamber, the two bearings are both arranged on the rotating shaft in a sleeve mode, the two pole shoes are both arranged on the rotating shaft in a sleeve mode, and are located between the two bearings, magnetic liquid is adsorbed between the inner
peripheral surface of each pole shoe and the outer
peripheral surface of the rotating shaft, the outer
peripheral surface of each pole shoe is provided with a matched
blind hole extending along the radial direction of the pole shoe, the permanent
magnet is arranged on the rotating shaft in a sleeve mode and is located between the two poleshoes, the heat conduction rods are inserted into the matched blind holes, the heat dissipation sleeve is arranged on the shaft shell in a sleeve mode, and the heat conduction rods are connected withthe heat dissipation sleeve through connecting pieces. According to the magnetic liquid sealing device with the heat conduction rods and the heat dissipation sleeve,
water cooling or circuit heat dissipation is not needed, the structure is simple and the heat dissipation effect is good.