| 摘要 |
A contactor for transport vehicle control comprises a forward electromagnetic drive, an explosion chamber of slot type with an insulation lining, movable and fixed arcing contacts. Moreover, the contactor comprises a speedup assembly and auxiliary contacts. Electromagnetic drive housing has a threaded bushing, in bore of which a rod is located. The rod is provided with a backward spring, a rod pusher is screwed in rod edge. An electromagnetic drive armature is positioned inside of coil frame of the forward electromagnetic drive, frame edges are provided with insulation linings resting upon the housing – in the top, in the low part – upon a screw plug of the housing. To adjust a gap between the armature and the rod pusher a threaded armature leg with magnetic gaskets is screwed on the screw plug. The speedup assembly comprises a contact element, at least, one resistor and a force pusher. The speedup assembly in connected through a dragging to the rod. Movable main and arcing contacts are connected to the rod through an insulator. |
