Working principle of AT pneumatic actuator
AT pneumatic actuators are divided into double-acting type and single-acting type.
Double-acting working principle
When the pressure of the air source enters the middle cavity between the two pistons of the cylinder from the air port, the two pistons are separated and moved toward the two ends of the cylinder. The air in the air chambers at both ends is discharged through the air port, and the two piston racks simultaneously drive the output shaft (gear) Rotate counterclockwise. Conversely, when the pressure of the air source enters the air chambers at both ends of the cylinder from the air port, the two pistons move in the middle direction of the cylinder, and the air in the intermediate air chamber is discharged through the air port, and simultaneously the two piston racks simultaneously drive the output shaft to rotate clockwise.
Single-acting working principle
When the pressure of the air source enters the middle cavity between the two pistons of the cylinder from the air port, the two pistons are separated and moved to the two ends of the cylinder, forcing the springs at both ends to compress, and the air in the air chambers at both ends is discharged through the air port, while synchronizing the two piston racks Drive the output shaft to rotate counterclockwise. After the pressure of the air source is reversed by the solenoid valve, the two pistons of the cylinder move in the middle direction under the elastic force of the spring, and the air in the middle air chamber is discharged from the air port, while the two piston racks simultaneously drive the output shaft to rotate clockwise
