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The Main Structure of A Double Girder Overhead Travelling Crane

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Aicrane
The Main Structure of A Double Girder Overhead Travelling Crane

A double girder overhead travelling crane is a type of crane that has two parallel girders or beams used for supporting the bridge and the trolley. The main structure of a double girder overhead travelling crane includes the following components:


Bridge: The bridge is the main load-bearing component of the overhead crane, and it consists of two parallel girders that run the length of the crane. The bridge is supported by end trucks, which are located at either end of the crane runway.


End trucks: The end trucks support the bridge and provide a means for the crane to travel along the runway. Each end truck consists of wheels that are mounted on an axle, which in turn is supported by a frame.


Runway: The runway is the surface on which the crane travels. It is typically made of steel and is supported by a structure that is attached to the building or structure that houses the crane.


Hoist: The hoist is the component of the crane that lifts and lowers the load. It is mounted on the trolley and can be powered by either electricity or hydraulics.


Trolley: The trolley is the component of the crane that moves along the bridge. It supports the hoist and allows it to move horizontally across the bridge.


Controls: The controls of the crane are typically located in a cab or control room, which is mounted on the bridge or on the runway. The controls allow the operator to control the movement of the crane and the hoist.


Overall, a double girder overhead travelling crane is a complex machine that is designed to provide efficient and reliable lifting and transportation of heavy loads.


How Does A Double Girder Overhead Traveling Crane Work?


A double girder overhead traveling crane works by using the two parallel girders or beams to support a bridge, trolley, and hoist system that allows for lifting and moving heavy loads horizontally along a runway. Here is how the crane works in more detail:


The operator starts the crane by turning it on and moving the trolley to the appropriate position.


The operator then uses the controls to lower the hoist down to the load and securely attaches it using a hook or other lifting device.


The operator then raises the load by activating the hoist and moving it up along the vertical plane of the crane's structure.


Once the load has been raised to the desired height, the operator can move the trolley along the bridge to position the load above the desired location.


Finally, the operator can lower the load by reversing the hoist's direction and releasing the load at the designated location.


Throughout the process, the operator uses the controls to move the trolley along the bridge, move the hoist up and down, and start and stop the crane's movement along the runway. The double girder overhead traveling crane is an efficient and powerful lifting tool that can handle heavy loads and transport them horizontally across a work area.

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