Working Principle Of Rodless Cylinder
Publish Time: Author: Site Editor Visit: 5
Rodless Cylinder The thrust and pull on the piston rod are determined according to the force required for the work. Therefore, when selecting the cylinder, the output force of the cylinder should be slightly redundant. If the cylinder diameter is too small, the output force is insufficient and the cylinder cannot work normally; but if the cylinder diameter is too large, not only the equipment is bulky and costly, but also the gas consumption increases, resulting in energy waste. When designing the fixture, the force-enhancing mechanism should be used as much as possible to reduce the size of the cylinder.
The end cover of the rodless cylinder is provided with an inlet and outlet port, and some are also provided with a buffer mechanism in the end cover. The rod side end cover is provided with a sealing ring and a dust ring to prevent air leakage from the piston rod and prevent external dust from mixing into the cylinder. The rod side end cover is provided with a guide sleeve to improve the guiding accuracy of the cylinder, bear a small amount of lateral load on the piston rod, reduce the amount of downward bending when the piston rod is extended, and extend the service life of the cylinder. The guide sleeve is usually made of sintered oil-containing alloy and forward-tilted copper castings. End caps used to be made of forgeable cast iron, but now aluminum alloy die-casting is often used to reduce weight and prevent rust. Micro cylinders are made of brass.
The inner diameter of the cylinder represents the size of the cylinder output force. The piston should slide back and forth smoothly in the cylinder, and the surface roughness of the inner surface of the cylinder should reach Ra0.8um. For steel tube cylinders, the inner surface should also be plated with hard chrome to reduce friction and wear and prevent rust. In addition to high-carbon steel tubes, high-strength aluminum alloys and brass are used for cylinder materials. Rodless cylinders are made of stainless steel tubes. For cylinders with magnetic switches or cylinders used in corrosion-resistant environments, the cylinder should be made of stainless steel, aluminum alloy or brass.
