Therefore, construction machinery should meet the following requirements:
1. Adaptability China is a vast country with a tower crane. From tropical to high-cold belts, natural conditions and geographical conditions are different. The construction environment is underground, underwater and plateau. Most of them are in the open field and open to the public. It is required to have good dust and corrosion resistance due to the influence of dust, wind and sun. In the work, it must meet the general construction requirements, but also meet various special construction requirements. 2. Reliability Most tower cranes are working on the move, the working conditions are harsh, the structure of the equipment is complicated, the vibration and wear are severe, and the components are severe. It is easy to deform, the working device moves frequently, and is often in full working condition, often damaged by fatigue. Therefore, the tower crane is required to have good reliability, otherwise, it is easy to cause the consequences of machine damage.
3. Economic economics is a comprehensive indicator. The economics of tower cranes are reflected in the requirements of performance requirements, simple structure, light weight, less types and quantities of parts; manufacturing economy is reflected in the process is reasonable, processing is convenient and manufacturing cost is low; economics of use should be reflected In high efficiency, low energy consumption and low management and maintenance costs.
4. Safety tower cranes are on site and are prone to accidental hazards. To this end, there are strict requirements for mechanical safety protection devices. There are special regulations in international standards. The standard specifications for tower cranes in China also clearly stipulate that products that do not comply with the provisions of safety protection devices are not allowed to leave the factory.