INTRODUCTION

How does an overhead crane work? As we konw the overhead crane is a kind of lifting equipment. that is erected over the workshop, warehouse, and yard for lifting materials. As its ends located on tall concrete columns or metal brackets, the shape is like a bridge. A overhead crane that moves along a track on both sides of the elevated longitudinal run. that can lift things from under the bridge without stopped by equipment on the ground. It is the most widely used and most numerous kind of lifting machinery. Following this article, KONIC GEARBOX, a professional crane reducer manufacturer, can figure this out.

HOW DOES AN OVERHEAD CRANE WORK?

overhead crane or overhead travelling crane commonly known as overhead crane. a common crane in the industrial environment. its pickup device suspended in the lifting trolley. hoist or jib crane that can run along the bridge. and the bridge beam through the running device directly supported on the track.

OVERHEAD CRANE WORKING PRINCIPLE

Cranes refer to the vertical lifting and horizontal handling of heavy objects. in a certain range of multi-action lifting machinery.So how does an overhead crane work? Their working principle is that, through the manipulation of the control system. the drive device will convert the energy input into mechanical energy for transfer to the pickup device. The pick-up device will transport the object and crane link. either alone or in combination, through the work mechanism. to complete the object handling tasks. The movable metal structure connects the components into a whole and carries the self-weight and lifting weight of the crane.

OVERHEAD CRANE WORKING PRINCIPLE

Universal overhead crane

Girder crane

Metallurgical special bridge

ADVANTAGES OF OVERHEAD CRANES

First, overhead cranes, which have a more complex mechanical structure. can complete the lifting, lowering, or horizontal movement.

second , overhead cranes can handle a variety of materials. their capacities range from 1 ton to several hundred tons.

third , overhead cranes operate in complex environments . and can be used in manufacturing, mining, metallurgy. chemical plants, steel mills, railroads, etc.

Using overhead cranes can greatly reduce the amount of work . that needs to be done by hand, improve operational efficiency. and make it possible to mechanize and automate operations.

COMPONENTS OF AN OVERHEAD CRANE

BEAM OF A BRIDGE

The primary horizontal beam that the trolley moves across is the bridge beam. It is typically built of steel and can be tailored to meet the exact needs of the application.

GIRDERS

Girders support and connect the bridge beam to the end trucks. They are available in a variety of shapes and sizes. depending on the load capacity required for the application.

END TRUCK

The end trucks are responsible for supporting and moving the facility’s runways. They can be powered or non-powered, depending on your need. Furthermore, some cranes provide rotating truck options for increased adaptability. As a result, travel over multiple floors, surfaces, and even terrain is possible.

HOIST

The cargocarried by the hoist, which attached to a hook or fork at one end. Depending on the type of crane you have acquired and the optimum power source for your purposes. the hoist powered by an electric motor, hydraulics, pneumatics, or gravity.

The two most common hoists for an overhead crane are chain and wire. A chain hoist lifts weights of less than ten tons and held in place by a chain holder. As a result, they provide actual vertical lift. and ascend straight up with no lateral movement.

Wire rope hoists may lift items weighing up to ten tons or more. They do, however, offer many more options and adaptability. Unlike chain hoists, wire rope hoists are prone to lateral movement.

TROLLEY FOR LIFTING

The lifting trolley used by the operator . to control how far and in which direction the weight travels. Depending on the use, it adjusted side to side, up and down, or in various inclined orientations.

The mechanism of the gadget comprises of a brake, motor, reducer, drum, and set of pulleys. The motor drives a drum, which in turn drives the wire rope or chain that lifts and lowers the weight.

MECHANISM OF DRIVING

The lifting trolley moved back and forth over the bridge beam by the drive mechanism. Depending on your requirements, it could be a hydraulic drive. a servo motor drive, or another form of power source.

A crane’s drive mechanism made up of two parts. The long transmission that drives both sides’ wheels is linked to a separate motor that powers each pair.

POWER SOURCE

The power supply is what keeps the overhead crane moving. There are various types of power supplies, each having multiple connections. The three most common varieties are conductor bars, festoon systems, and cable reels.

Most overhead cranes are powered by electricity, though pneumatic variants are available. Electricity transmitted to the crane runway and overhead crane control through cable festoons. conductor bars, or reel cables. This power source powers the trolley and hoist.

HEIGHT

The height of the crane determines the type of motor and its lifting capabilities. The lift height of an overhead crane refers to the distance from the floor to the saddle of the hook. which is an important measurement since it ensures adequate lift space and room to reposition the load.

CONTROLS

The overhead crane controls provide the operator complete control of the load. The most basic controls consist of a start and stop button. although more complicated controllers include joysticks . and tablets to allow for more complex movements and motions.

Overall, the overhead crane made up of numerous components. that work together to provide a heavy lifting solution for your organization. Understanding what each section performs and why it exists makes it easier to comprehend . how the overhead crane functions as a whole.

APPLICATION OF OVERHEAD CRANES

Overhead cranes have many uses and widely used in real life. In many factories, many product manufacturers. in order to facilitate handling, will choose a crane for handling. and overhead cranes are more effective in helping transport. overhead cranes have the advantages of a compact shape. light weight, small wheel pressure, smooth running speed.low noise. easy installation, and easy maintenance. It is suitable for warehouses, workshops, power stations, and other places without electricity. and sources for overhauling equipment and lifting spreader items. In addition to general mechanical workshops. overhead cranes are also widely used in petroleum and petrochemical industries. papermaking, building materials, metallurgy, and other workshops, warehouses, and yards. According to the actual situation. a manual monorail trolley and hand chain hoist used in a flexible combination.