A cylinder is a device that converts the pressure energy of compressed air into mechanical energy and belongs to pneumatic actuators.
Main structure:
Cylinder barrel: The main body of a cylinder that guides the piston to move in a straight line.
End cap: Seal both ends of the cylinder, forming a closed space with the cylinder.
Piston: It moves back and forth within the cylinder, separating two chambers.
Piston rod: connects the piston to external loads and transmits mechanical energy.
Seals: Ensure the sealing of the cylinder to prevent gas leakage.
There are various types of cylinders, suitable for different scenarios:
According to the action method:
Single acting cylinder: Unidirectional movement, requires external reset.
Double acting cylinder: bidirectional motion, strong controllability.
By function:
Buffer cylinder: Buffer when the piston reaches the end point, reducing impact.
Rotary cylinder: The piston drives the output shaft to rotate, suitable for rotary motion.
Gas liquid damping cylinder: Combining the cylinder and hydraulic damping, it moves smoothly.
Rod free cylinder: without piston rod, driven by magnetic field or cable, suitable for long-distance movement.
Cylinder barrel, as an important mechanical component, is applied in multiple fields. The following are the main application areas of cylinder barrels:
1. Mechanical Engineering
Cylinder: In pneumatic systems, the cylinder barrel is a key component of the cylinder, providing space for the piston to move. Cylinders are driven by compressed air to achieve linear reciprocating, swinging, or rotating motion, and are applied in fields such as automation equipment, pneumatic tools, and robotic arms.
Hydraulic cylinder: In hydraulic systems, the cylinder barrel is the main part of the hydraulic cylinder, which, together with the piston, converts hydraulic energy into mechanical energy. Hydraulic cylinders are used in engineering machinery, mining machinery, metallurgical machinery, ships, aerospace and other fields to drive actuators to complete various tasks.
2. Automotive industry
Engine: In an engine, the cylinder barrel is a critical part of the cylinder block, which together with the piston forms the combustion chamber. The high-temperature and high-pressure gas generated by the combustion of fuel in the combustion chamber drives the piston to move, which in turn drives the crankshaft to rotate and generate power.
Braking system: Some cars' braking systems also use hydraulic cylinders as actuators, which achieve braking action through the expansion and contraction of hydraulic cylinders.