A telescoping hydraulic system is an essential component of a Tower Crane. It allows the crane to extend and retract its boom, enabling it to reach different heights and distances. This system consists of several hydraulic cylinders, valves, and hoses that work together to provide the necessary power and control.
The main hydraulic cylinder in the telescoping system is responsible for extending and retracting the boom. It is typically a double-acting cylinder, meaning it can generate force in both directions. This cylinder is connected to the base of the crane and extends vertically to support the boom. Hydraulic Pump Station,Telescoping Cage,Tower Crane Cylinder,Axial Plunger Pump,hydraulic pump unit SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sytopkittowercrane.com
In 2009, the Ministry of Standards and Technology of the Russian Federation adopted the GOST P 53664-2009 national standard for high-strength bolts for bridges, and related standards for nuts and washers.
At the same time, the Russian scientific research center SRC Mosty also issued a standard document concerning Steel Structure detachable joints on bridges using bolts.
Both the standard literature and the standard for high-strength bolts for bridges were implemented in January. Both standards are based on new scientific research and the development of engineering designs, carried out by the Russian Scientific Research Center SRC Mosty, and validated in bridge construction. The two standards aim to improve the safety and security in the construction process, reduce labor intensity, improve work processes and reduce environmental impact.
It is understood that this type of connection through the combination of tapered high-strength bolts and round heads has a load capacity of 1.5 to 3 times that of straight shank bolts through frictional connections; the number of bolts at the bolt-to-hole junction can be reduced, and the number of bolts can be reduced. The labor intensity of production and installation.
To control the movement of the hydraulic cylinder, various valves are used. These valves regulate the flow of hydraulic fluid into and out of the cylinder, allowing for precise control of the boom's extension and retraction. The valves are typically operated by the crane operator using a control panel or joystick.
The hydraulic system also includes hoses that connect the cylinders and valves. These hoses transport the hydraulic fluid, which is typically oil, between the different components. The hoses must be durable and able to withstand high pressure to ensure the safe and efficient operation of the crane.
In addition to the main hydraulic cylinder, there may be secondary cylinders in the telescoping system that provide additional support and stability to the boom. These cylinders are typically smaller and are used to fine-tune the position and angle of the boom.
Russia implements new standards for high-strength bolts for bridges
According to the report from China External Standards, a standard passed by Russia on the use of high-strength bolts for bridges was implemented in January 2011.