Tower cranes are among the most practical devices in advancing projects and speeding them up, and besides, they play an important role in reducing construction costs due to the rapid advancement of processes. Now, according to this introduction, we have prepared this article to familiarize you with devices called tower cranes, which we hope will be a useful article for you.
What is Crane Tower?
It is interesting to know that tower crane is another name for tower crane. In fact, in a way, these cranes are a modern type of balance levers that are made of the same parts as a normal lever, with the difference that the base of the tower crane or stabilization base is placed in reinforced concrete, and sometimes it is attached to parts of the structure or building by The harness belt is attached. Tower cranes are usually widely used in the construction of tall buildings, dams, towers, and skyscrapers.
Types of Crane Tower Models
In general, many categories are considered for tower cranes according to their shape or size, and each of these models is used for specific needs; But it can be stated that the principles of three main categories of these cranes are available, which include the following:
1. Classification by dimensions
In terms of dimensions, tower cranes are usually divided into two main categories, small and large. In this regard, small tower cranes are suitable for moving equipment and tools in a small environment such as workshops, while large tower cranes are used for building buildings and tall skyscrapers.
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There are other types of cranes in the category of large cranes, which are used in the oil industry, for the construction of oil tanks, moving cargo in the water, and removing equipment from the water. Like ships sunken is used.
2. Types of crane based on installation model
In general, this model of tower cranes can be divided into self-installing and assisted installation.
Self-installing tower cranes do not need any helper for installation and operation, and this feature itself have the ability to increase or decrease their height. In fact, the most important feature of these cranes is the possibility of quick and easy installation. At the same time, auxiliary tower cranes need an external and helpful agent such as a crane or even a helicopter at very high heights for installation and commissioning. Also, the height of this type of cranes is increased by special height parts. It should be noted that the main feature of this category of tower cranes is greater strength and height for carrying loads and moving objects.
1. Types of Tower Crane Based on Motor Radius
It is interesting to know that all tower cranes have a 360-degree radius of movement or moving loads in all possible directions. The movement radius also means what limitations a tower crane has in three spatial axes; Therefore, on this basis, in this category, tower cranes can be divided into three categories: fixed type, mobile type and climbing type.
Fixed tower cranes: As the name of this type of cranes indicates, these types of tower cranes do not have any special features and are used for normal applications.
Mobile tower cranes: The most important characteristics of a mobile tower crane is its wide operational radius, which means it can move in all directions. work well in different parts of a project.
Climbing tower cranes: The climbing tower crane is usually used to build various structures such as buildings. This crane model rises as the building height increases, and its strong point is its wide height coverage. It is for this reason that this type of tower crane is used in the industry of tower construction and building skyscrapers and bridge construction.
Crane Tower Features
Load capacity
It is interesting to know that the load capacity of tower cranes is based on their structure and usually this work is done by electric motors. It should be noted that after the driver and the steering wheel, all the above systems are being controlled by a series of micro switches so that the machine does not lift more than the permissible load from the ground and the safety of the machine is maintained; Therefore, all the discussed items are assigned to the load capacity or tonnage of the device.
The power of the bar maneuver forward and backward
Power maneuver
In addition to the ability to lift the load and move it forward and backward, tower cranes have the power and ability to move the load in a 360-degree radius and can move the load to any desired point. It is interesting to know that usually this work is done by one or two electric motors and one or two gearboxes, and for greater safety, micro-switches prevent the system from bypassing when necessary.
The power of the device's overall movement
Tower cranes have the ability to move on the ground and transfer the device from one point to another. In fact, some of the models of this device are moved by being placed on the rail, and other models move on the ground using chains that are very similar to tank chains. Also, another type of crane can move on big wheels that are like airplane tires. It should also be noted that all the movement of these devices is usually done by electric motors and very strong gearboxes that also have very strong brakes.
Height power of the device
In general, after the initial installation and assembly, which is done by a mobile crane, tower cranes use the assembly power of the device to increase the height, and by adding a height piece, they can increase the height, and by reducing the height of the device also decreases. It should also be noted that all the stages of installation, assembly, heightening, tying the belt and many other cases should be checked by experienced and specialized forces. Because the smallest mistake can be dangerous.