How does a overhead crane works?
Overhead cranes cover a rectangular area, moving a load side to side and backward and forward. The lifting device, called a hoist is mounted on a trolley for horizontal movement across a bridge beam connected to one or more horizontal girders which are supported at either end by end trucks.
What is the main component of gantry girder?
The plate girder consists of the following components: The web plate. Flange plate (addition of cover plate curtailed at proper sections) Stiffeners like bearing stiffeners, longitudinal stiffeners, and intermediate stiffeners.2021-05-22
What is meaning of gantry crane?
Definition of gantry crane : a bridge crane in which the beam or bridge is carried at each end by a trestle that travels on tracks on the ground.
What are the different types of overhead cranes?
The different types of overhead cranes include gantry cranes, jib cranes, bridge cranes, workstation cranes, monorail cranes, top-running, and under-running.2021-09-01
What is the difference between a overhead crane and a gantry crane?
The difference between an overhead crane and a gantry is that the crane girders are attached to the legs of the gantry so that they can run without runway beams and columns. Need a ladder and handrails connected to at least at one of the leg to climb the gantry.2020-08-10
What is the purpose of an overhead crane?
To move extremely heavy or bulky loads through the overhead space in a facility, instead of through aisles or on the floor, an overhead crane (also called an industrial crane, crane, or overhead traveling crane is a machine that lifts, lowers and moves a load horizontally.
What are the principal parts of an overhead traveling crane?
Category 2 and 3 Crane Components The principal parts of overhead traveling cranes are: bridge girders, end trucks, trolley with hoisting mechanism, and operator’s cab or pendant control.
What is a gantry on a ship?
A container gantry crane is the biggest crane which is used in the operation sector of the shipping industry. It is designed for loading and unloading the container cargo from a container vessel.2021-12-09
What is the difference between a gantry and bridge crane?
Bridge cranes are mounted inside of the building they operate in. This makes them great for warehouse type factories that are often crowded and where every inch of space is valuable. Gantry cranes are typically on wheels or mounted to a track system .2021-06-23
What is a gantry on a bridge?
Gantry cranes are typically on wheels or mounted to a track system . Because they’re not mounted to the structure of the building, they are much easier to disassemble and move elsewhere. The gantry cranes on wheels are especially mobile. They can be moved inside or outside whenever needed.2021-06-23
What are overhead and gantry cranes?
An overhead crane has a movable bridge that commonly carries a movable trolley supporting the hoisting mechanism, traveling on an overhead fixed runway structure. A gantry crane is similar to an overhead crane except that the bridge for carrying the trolley or trolleys is rigidly supported on two or more legs.2020-10-05
How does a gantry crane work?
Working principle of the gantry crane hoisting mechanism: The basic principle is that the rotation of the motor is transformed into the lifting and lowering movement of the load. When the power is suddenly cut, the brake is applied and the load is stopped at the specified position.2021-05-07
What is an overhead crane called?
What is the bridge on a crane?
The bridge on a crane includes the bridge girder, and all of the parts that allow the hoist to travel side to side. You would think that a bridge crane would have a bridge where a gantry crane would not. But they both have a bridge. The main distinction between the two is how that bridge is mounted.2021-06-23
What is a gantry on a crane?
A gantry crane is a type of overhead crane with a single or double girder configuration supported by freestanding legs that move on wheels or along a track or rail system.2018-10-08
What are the parts of a gantry crane?
The working mechanism of gantry crane equipment includes four parts, namely lifting mechanism, operating mechanism, luffing mechanism and rotating mechanism. The coordination of these four mechanisms completes the overall operation process of gantry crane.2020-08-17
How did crane get its name?
Developed by the Greeks and named after a bird The appearance of the lifting device, with its vertical column and a boom that usually points up at an angle and can rotate, recalls the long neck and beak of a standing bird, the crane.
What is gantry girder and its components?
The Gantry Girders are girders that support the loads that are conveyed through the traveling wheels of the crane. The gantry girder spans between the brackets connected to columns, which may either be of steel or reinforced concrete.