What is the working principle of double girder overhead crane?

Double girder overhead crane is a commonly used lifting equipment in the industrial and construction fields, and its working principle is as follows:

Structural composition

The double beam bridge crane consists of two main beams, upper and lower, which are connected to the running track through brackets. Usually, the main beam is equipped with components such as crane motors, transmission devices, crane beams, and pulleys.

Lifting function

There is one or more crane pulleys installed on the crane beam, which are connected to the lifting object through steel wire ropes or chains on the pulleys. The crane motor drives the pulley to move around the crane beam for lifting and lowering, achieving the lifting of goods.

Transportation function

The lower main beam of the double girder overhead crane spans on parallel running tracks on both sides and is driven along the tracks by a driving system. The walking motor drives the driving wheels or tracks, allowing the crane to move freely on the track and achieve horizontal transportation of goods.

Control system

The double beam overhead crane is equipped with a controller that can send commands through the control lever, remote control, or buttons on the panel. The control system can achieve operations such as starting, stopping, walking, lifting, and turning of the crane.

Through the above working principle, the double girder overhead crane can achieve the functions of lifting, transporting, and positioning goods. It has the characteristics of stable structure, wide transportation range, and suitability for various heavy lifting tasks, and is widely used in many industries, such as factories, ports, mines, and construction sites.