First, the principle of hydraulic bellows
Hydraulic bellows are pipe components that use the elastic deformation characteristics of metal bellows to achieve liquid transmission and sealing technologies. In the pipeline system, the pipeline element can be bent and telescoped for the transmission of various liquid media and gases, and its elastic deformation characteristics can compensate for various displacements and deformation in the system.
The hydraulic bellows are mainly composed of a number of thin bent metal tubes. According to the pressure change of the medium of the pipeline, the bent metal tubes have corresponding elastic deformation, so that the medium flows along the pipeline. Because the inner cavity of the bellows is smooth and the channel wall is thin, the flow vortex and eddy will not be formed, which makes the flow resistance of the liquid small and has high efficiency and performance.
Second, the application of hydraulic bellows
Hydraulic bellows are widely used in mechanical devices in aviation, aerospace, automobiles, ships, metallurgy, mining and other fields, and it has the following advantages:
1, high temperature and corrosion resistance: hydraulic corrugated pipe is mainly made of stainless steel, copper, titanium and other metal materials, its material has oxidation resistance, corrosion resistance, high temperature resistance and other characteristics, suitable for a variety of harsh working environment.
2. Good elastic characteristics: the bending elasticity and displacement capacity of the hydraulic bellows are high, which will not cause leakage and damage due to the deformation of the pipeline, and can ensure the sealing and stability of the pipeline system.
3, diversified shape and size: hydraulic bellows can be designed into different shapes and sizes according to actual needs, to adapt to different occasions and working conditions.
In the field of aviation, hydraulic bellows are widely used in hydraulic power units and aerodynamic units to transfer hydraulic energy and airflow energy. In the field of ships, hydraulic bellows are mainly used in hydraulic steering gear and other devices. In automotive, metallurgy, mining and other fields, hydraulic bellows are mainly used to transfer high pressure liquid energy and gas energy.
In short, the hydraulic bellows is one of the indispensable components in the hydraulic transmission system, and its good elasticity and high temperature resistance, corrosion resistance and other characteristics make it have a wide range of application prospects in various mechanical devices.