How to connect the limiter of portal elevator?

The limit of electric hoist is usually called fire-breaking switch. The principle is that the wire rope on the winch drum rotates to push the limit push rod to move left or right. When the push rod moves to a certain position, the contact inside the limit switch will be disconnected, so that the motor can no longer rotate in this direction. ?

The spiral limit controller mainly adopts two control modes. One is to control the position of the elevator by using the collision between the limit switch and the limiter. Its disadvantage is that the limiter is only fixed by screws, and it is easy to shift under the frequent impact of the limit switch, which affects the precise control of the elevator. The other is to use magnetic induction switch instead of limit switch to sense the position of the limiter, so as to avoid frequent impact on the limiter and its displacement.

Extended data:

Precautions:

1、? In order to ensure the distance between the upper and lower limits and the upper limit, the contact distance between the limit switch and the upper and lower limits should be 0.2-2mm. When closing the limit switch and adjusting the limit switch and the limit switch, the guide rail frame, the accessory frame and the cable guide frame can be installed.

2. Pay attention to the adjustment of replacing the wire rope. Screw in the round head bolt first and move the nut with the bolt to avoid damaging other parts by moving the nut too much.

3. After replacing the safety wire rope of the elevator platform, adjust the lever position to reach the upper limit.

4, the limit switch on the elevator platform should be checked regularly, once damaged, should be replaced or repaired.

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