Reasons For The Sinking Of The Main Beam Of The Crane

2024-01-31

There are stresses of different directions and properties in various parts of the crane metal structure. Some of these stresses are caused by the load, and some are caused by the manufacturing process and the uneven shrinkage of the welding seam and the nearby metal.

1. There are stresses of different directions and properties in various parts of the crane metal structure. Some of these stresses are caused by the load, and some are caused by the manufacturing process and the uneven shrinkage of the welding seam and the nearby metal. During use, these stresses tend to be homogenized to disappear, causing plastic deformation of the structure.

2. The influence of equipment transportation, storage and hoisting, and unreasonable transportation, storage, hoisting and installation can cause the deformation of the bridge structure.

3. The impact of use The equipment is designed under certain conditions, and unreasonable use such as overload and unbalanced load will cause the bridge to deform.

4. The influence of repair methods, gas cutting or welding on the bridge, no measures to prevent deformation, uneven heating will also cause deformation of the bridge. The single-beam crane has two modes of operation on the ground and in the air. There are two types of ground operation: wired handle operation and remote control handle operation; aerial operation refers to operation in the driver's cab. The driver’s cab has two types: open and closed. It can be divided into two types for installation on the left or right according to the actual situation. There are two types of entry directions, side and end, to meet the needs of users in a variety of different needs.

5. High temperature affects the heat. The sinking of the main beam of the crane used in the processing workshop is more common than the crane used in the cold processing workshop, and the degree of sinking is more serious. The reason is that the radiant heat of smelting will cause the temperature of the lower cover of the main beam to be higher than the temperature of the upper cover, so that the increase of the lower cover is greater than that of the upper cover, resulting in a natural decrease in the arch of the main beam under the action of the load.

Keywords：

Maintenance Of Metal Components Of Gantry Cranes

How Tower Cranes Are Built

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