One end of the rotation axle is connected with an electromagnet by a pull rod and a weight rod.

转动轴的一端通过拉杆和重锤杆与电磁铁相连。

youdao

When the pull is strong, the disc is moved toward the electromagnet, and when the pull is weak, the disc springs away from the electromagnet.

吸引力强时，金属片朝向电磁铁运动。吸引力弱时，金属片从电磁铁处弹回。

youdao

The utility model relates to an electromagnet, which is composed of a yoke iron, an armature iron, a push rod, a pull rod, a starting coil, a sustain coil, a controlling circuit and an end cover.

本实用新型涉及一种电磁铁，有轭铁、衔铁、推杆、拉杆、启动线圈、维持线圈、控制电路和端盖。

youdao