Hydraulic System of Rebar Rolling Mill
Hydraulic system has been widely used in rebar rolling mill for its advanced technology, smoothness and high torque transmission ratio. It is a basic element for the operation and protection of modern rolling mill, and it plays an important role in energy saving, automation and intelligence. In this paper, the basic characteristics of hydraulic system for rolling mill are discussed.
Summary
The rolling mill hydraulic system has the advantages of high accuracy, high reliability, high controllability, simple and easy maintenance, so it is suitable for automation and intelligence development. Its main features can be summarized as: (1) fast response and good dynamic stability, without the help of others to adjust the speed and torque. (2) A variety of control methods, which can be achieved using manual, automatic or semi-automatic operation. (3) Low power consumption, which can save energy consumption and significantly reduce the operating cost. (4) High production efficiency, which improves work speed and quality. (5) Low noise, which is beneficial for the healthy working environment of the workers.
Application of Hydraulic System
Hydraulic system is widely used in the rebar rolling mill. For example, the working process of the rolling mill includes pre- rolling process, rolling process, inspection process, cooling and separating process and honing process, which should be done continuously and accurately. In these processes, the hydraulic system plays an important role in providing power, controlling speed, adjusting torque and ensuring accuracy. Furthermore, the hydraulic system can be used to adjust the roll gap, maintain the rolling pressure, supply sufficient tension, provide smooth turns, and maintain the desired output speed.
Working Principle and Forms of Hydraulic System
The overall structure of the hydraulic system for rolling mill includes hydraulic motor, hydraulic pump, hydraulic valve, oil pipeline, hydraulic cylinder and hydraulic reservoir. Firstly the hydraulic motor drives the hydraulic pump to operate, then hydraulic pump supplies oil to the hydraulic valve and hydrauliccylinder, the hydraulic cylinders complete the conversion of reciprocating motion and rolling direction, the hydraulic Valve controls the direction of oil flow, while the hydraulic reservoir stores oil and filter impurities. The types of hydraulic system can be divided into open loop, closed loop and proportional control.
Advantages of Hydraulic System
①Reliable and Low Maintenance: The hydraulic system is very reliable and its maintenance is low, which makes this system more suitable for cold rolling technology and high-speed rolling.
②High Efficiency and Economy: The hydraulic system has high efficiency, can reduce energy consumption and improve the economy.
③Safe and Environmental Friendly: The hydraulic system has no pollution to the environment, and its design ensures safety and reliability.
Conclusion
The hydraulic system has many advantages and multiple applications in the rebar rolling mill, such as high accuracy, high reliability, high controllability, simple and easy maintenance and energy saving. It’s a basic element for the operation and protection of modern rolling mill, and it plays an important role in automation and intelligence. Therefore, the hydraulic system is the key to the successful operation of rebar rolling mill. In conclusion, the hydraulic system is a necessary and important part in todays rebar rolling mill.
