Two electro -magnet that push away of permanent thrust

The utility model discloses a two electro -magnet that push away of permanent thrust, include the barrel, be located the quiet core at barrel both ends, the barrel with quiet core formation cavity, beprovided with the coil in the cavity, be provided with mobile core in the coil, barrel, quiet core, coil and mobile core's axis coincides mutually, mobile core is close to the anchor ring is described for the step to the terminal surface of quiet core, quiet core is close to mobile core's terminal surface be provided with with it is protruding that step form anchor ring cooperatees the step form.The utility model discloses a two electro -magnet that push away of permanent thrust's structural design is reasonable, and thrust is steady, and the electromagnetism force curve rate of rise is little, does not have the sudden change, and noise at work is low, initial thrust is big, and factor of safety is high, can use in occasion that the electromagnetic force demand is bigger, at the band -type brake state, the electr