A foot wheel is a general name, including activities and fixed casters. The active wheel is what we call the universal wheel. Its structure allows 360 degrees of rotation; the fixed casters do not rotate and can not rotate. Usually two kinds of casters are usually used for collocation, for example, the structure of the cart is the front two fixed wheels, and the two movable universal wheels near the handrails are behind them.
A product, because the wheel is a general name, including activities and fixed casters. The active wheel is what we call the universal wheel. Its structure allows 360 degrees of rotation; the fixed casters do not rotate and can not rotate. Usually two kinds of casters are usually used for collocation, for example, the structure of the cart is the front two fixed wheels, and the two movable universal wheels near the handrails are behind them.
The history of the casters
Back to the history of caster is a very difficult thing, but after people invented the wheel, moving and moving objects much easier, but the wheels can only be run in a straight line, for handling major objects of change of direction is still very difficult, then people invented with steering wheel structure, that is we now call casters or wheels. Casters appear to bring revolution to the age of moving, especially mobile objects. They can not only be transported easily, but also can move in any direction, which greatly improves the efficiency.
In modern times, with the rise of industrial revolution, more and more devices need to be moved. Casters are also widely used all over the world, and castors are almost impossible for all walks of life. With the continuous development of modern science and technology, more and more functions and high utilization rate of equipment are becoming more and more, and the casters have become indispensable parts. The development of the casters has become more specialized and has become a special industry.
The application of the casters
The use of casters is very wide, and almost any industry is designed. According to the needs of different industries, people constantly invent various kinds of casters, and there are about 150000 different casters all over the world.
The structure of a caster is made up of a single wheel on a bracket and used to make it free to move under the equipment. The casters are divided into two main categories:
A fixed foot fixed support with a single wheel, can only move along a straight line. The B movable scaffold with a 360 degree steering wheel is equipped with a single wheel and can run in any direction at will. Industrial casters have a wide variety of single wheels, different in size, model, tire surface and so on. Select the right wheels for the following conditions:
A carrying capacity.
B use the site environment
C a variety of special climates, such as humidity, high temperature, or cold. The D working environment contains chemicals, blood, oil, oil, salt and other substances.
E requirements for impact, collision and tranquility.
How to choose the proper casters for you
1. How to choose the proper wheel
1, choose the wheel material: first consider the use of the road the size of obstacles, using the residue field (such as iron, oil), the environmental conditions (such as high temperature, normal temperature or low temperature) weight under different conditions and the capacity of the wheel to select suitable wheel material. For example, rubber wheels are not resistant to acids, Oils and chemicals. Super polyurethane wheels, high strength polyurethane wheels, nylon wheels, steel wheels and high temperature resistant wheels can be applied to different special environments. 2, calculate the carrying weight: in order to be able to calculate the load capacity of various casters, we must know the weight of the transport equipment, the maximum load and the number of single wheels and casters. The load capacity required for a single wheel or a caster is calculated as follows: T= (E+Z) /M x N: ---T = the bearing weight required for a single wheel or a caster.
---E = the weight of the transport equipment;
---Z= maximum load;
The number of single wheels and casters used in ---M=;
---N= safety factor (about 1.3 - 1.5).
3, determine the size of the wheel diameter. Generally, the larger the wheel diameter is, the easier it is to push, the greater the load capacity, and the better protection of the ground. The choice of the wheel diameter should first consider the carrying capacity and the starting thrust of the truck under the load.
4, wheel material hardness and hardness selection: usually, there are nylon wheels, super polyurethane wheels, high strength polyurethane wheels, high strength artificial rubber wheels, iron wheels and air wheels. Super high strength polyurethane wheels, polyurethane wheels in both indoor and outdoor ground vehicle, can meet your requirements of handling; high strength artificial rubber wheel can drive to the hotel, for the ground up medical equipment, floors, wood floors, ceramic tile ground requirements when walking noise quiet; nylon wheel, iron wheels on the ground rough or iron filings and other substances on the ground; and the pump wheel is suitable for light load and pavement soft uneven situation.
5, the flexibility of rotation: the greater the single wheel, the more laborer it saves. The roller bearing can load heavier loads, and has greater resistance when turning. The high quality (Zhou Chenggang) ball bearings on single wheel can load heavier loads, make the rotation more portable, flexible and quiet.
6, temperature condition: severe cold and high temperature occasions have great influence on casters. Polyurethane wheels at low temperatures below 45 degrees, rotate freely and high temperature wheels at high temperature 275 degrees.
Two. How to choose the proper wheel frame
1, usually choose the suitable wheel rack, first consider the weight of casters, such as supermarkets, schools, hospitals, office buildings, hotels and other places, because the floor is good, smooth and the goods transported are lighter, (each castor carries 10-140kg).
