Method for controlling travel and speed by adopting electromagnetic device and electromagnetic device
An electromagnetic device and stroke control technology, applied to electromagnets, electromagnets with armatures, circuits, etc., can solve the problems of unobtainable and uncontrollable current
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[0026] see figure 1 and figure 2 , a kind of method that adopts electromagnetic device to control stroke and speed provided by the present invention, it comprises the following steps:
[0027] (1) Prepare an electromagnetic device, which device includes a support 11, a coil 12, a push-pull rod 16, a permanent magnet 14, a return spring 15, the coil 12 is wound on the support 11, and its interior is hollow, so The permanent magnet 14 is fixedly arranged on the front part of the push-pull rod 16, and the rear part of the push-pull rod 16 is provided with a shoulder and a working part; the push-pull rod 16 can move linearly forward and backward in the hollow position inside the coil 12 under the action of magnetic force; The return spring 15 is sleeved on the push-pull rod 16, its front part is in contact with the bracket 11, its rear part is in contact with the shoulder, and is fixed in the middle position by both;
[0028] (2) A control circuit is provided, and it is electri...
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