Electrical parts of overhead crane

Electrical parts of overhead crane introduction

1. Overload operation of lifting capacity limiter is an important reason for frequent accidents of bridge crane. Using overload protection device can prevent accidents.

2. There are two types of limiters, one is the rising limit position limiter and the falling limit position limiter to protect the safe operation of the lifting mechanism, and the other is the limiting position limiter to limit the operation of the operating mechanism.

3. The buffer absorbs the running function of the trolley to slow down the impact.

4. Anti collision device the running speed of modern bridge crane is constantly improving. Several machines often run on the same track at the same time. In order to prevent the collision between bridge cranes, the anti-collision device is installed on the bridge crane.

5. Due to the deviation of wheel manufacturing and installation, and the deviation of transmission mechanism, the anti deflection device often makes the operation of the bridge crane deviate. In serious cases, there will be "rail gnawing phenomenon" and even affect the metal structure and operation mechanism.

6. Other safety protection devices, 1. The electrical equipment on the bridge should be equipped with rain proof cover, 2. The single main girder bridge crane should be equipped with anti overturning safety hook to ensure that the trolley does not overturn and the maintenance work is safe.

Electrical parts of overhead crane constitute

It has the main controller (linkage, cam controller, button), control circuit (transformer, contactor, over-current short circuit, limit protector), speed regulating system (frequency converter, resistor, frequency sensor), etc

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