What are the safety protection devices of single beam cranes

In order to ensure the safe use of single-girder cranes , the crane must be equipped with safety protection devices. In the previous article, we have introduced the safety protection devices of cranes. Many of them do not need to be installed on single-girder cranes. Then our factory The editor will explain to you what are the safety protection devices used in the single-beam crane

The overload limiter is also called the lifting weight limiter, which is a protection device installed on the electric hoist. When the load reaches 90% of the rated load, an alarm signal should be sent out. When the lifting capacity exceeds the rated lifting capacity, it can automatically cut off the lifting power source and send out a prohibitive alarm signal.

2. Ascending limit position limiter

The lifting height limiter is to ensure that when the spreader is lifted to the limit position, the power source for lifting is automatically cut off to prevent the occurrence of a topping accident . The descending depth limiter can be selectively installed according to the situation.

3. Stroke limiter

The travel limiter is also called the travel switch. The travel mechanism of the cart should be equipped with a limiter to automatically cut off the power source when it travels to the limited travel.

4. Buffer

The buffers are installed at both ends of the end beam. Prevent the cart from colliding with the stopper at the top of the track.

5. End stop

The end stop is installed at both ends of the track to prevent the crane from rushing out of the track

6. Phase failure protection

Prevent lack of torque in the motor due to lack of phase, and prevent the wrong phase from causing the motor to move in the wrong direction

The single-girder crane is equipped with a protective device to prevent the operator's operating errors from causing damage to the crane and causing production accidents. The operator cannot rely on the protective device to replace the operation of the crane. Units that use single-beam cranes must do a good job of training and establish a complete maintenance system.

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