What aspects should be considered when maintaining an electric single-beam crane?

Let's explain the precautions for maintaining electric single-beam cranes, as provided by the manufacturer of single-beam cranes in Shandong:

1. Check whether the connecting screws between the main beam and the end beam of the electrical single-beam crane are loose. The main reason for this danger is also vibration. Therefore, it is recommended to use variable-speed cranes as much as possible to compare the stability and low failure rate of single-beam cranes.

2. Is the gap between electric hoist trolleys within the normal range? During routine inspections of single-beam cranes, it is often found that the gap between some hoist trolleys and the main beam I-beams is too large.

Since the crane is suspended from the I-beam by the trolley, if the gap is larger than the width of the I-beam, it cannot be lifted. This will result in the entire hoist falling down, and the consequences can be imagined. The reason for the excessive distance between the trolley and the winch is usually due to long-term overload of the trolley, and the prolonged diagonal pulling of the crane only leads to an excessive distance between the trolleys. The method to repair the excessive distance between the trolley and the crane is to replace the trolley.

3. Regardless of whether the motor of the single-beam crane is securely fixed, there have been many cases of motors falling, and only a few people have been hit.