Principle of rodless cylinder
Rodless Cylinder The working principle is the same as that of ordinary cylinders, but the external connection and sealing form are different.
Both sides of the cylinder are hollow. The permanent magnet in the piston rod drives another magnet (moving part) outside the piston rod. It has high requirements for cleanliness. The magnetic coupling rodless cylinder often needs to be disassembled and cleaned with gasoline, which is related to its working environment.
There is a piston in the rodless cylinder, but no piston rod. The piston is installed in the guide rail, the external load is connected to the piston, and the action depends on the intake air.
The magnetic coupling movement is achieved by using the permanent magnet in the hollow piston rod to drive another magnet outside the piston rod. Because the inner and outer magnetic rings are easy to disengage when the speed is fast and the load is high, it is not so widely used. The size of its load mass needs to find its mass and speed characteristic curve. Therefore, the mechanical type is used more.
The piston drives the moving body outside the cylinder body to move synchronously through magnetic force. Its working principle is: a set of high-strength permanent magnetic rings are installed on the piston, and the magnetic lines of force act on another set of magnetic rings on the outside through the thin-walled cylinder. Since the two sets of magnetic rings have opposite magnetic properties, they have strong suction. When the piston is pushed by air pressure in the cylinder, it drives the magnetic ring sleeve outside the cylinder to move together under the action of magnetic force. The thrust of the cylinder piston must be adapted to the suction of the magnetic ring.
Principle
The working principle of the magnetic coupling rodless cylinder: a set of high-strength permanent magnetic rings are installed on the piston, and the magnetic lines of force act on another set of magnetic rings inside the outer slider through the thin-walled cylinder. Since the two sets of magnetic rings have opposite magnetic properties, they have strong mutual suction. When the piston is pushed by air pressure in the cylinder, the piston moves. At the same time, the magnetic ring in the outer slider is affected by the magnetic lines of force of the magnetic ring on the piston and moves synchronously. The thrust of the cylinder piston must be adapted to the suction force of the inner and outer magnetic rings. When the air pressure is too high or the load is too heavy, resulting in excessive piston thrust and the mutual attraction between the magnetic rings cannot be maintained, the inner and outer magnetic rings will disengage and the cylinder will not work properly, which is professionally called off-target.