From the analysis of the internal structure, the key components usually included in the cylinder are: Pneumatic Cylinder Kits (Pneumatic cylinder barrel, pneumatic end cover, pneumatic piston, piston rod and seal). The inner diameter of the cylinder barrel represents the specific export force of the cylinder. Under normal circumstances, the piston needs to roll back and forth smoothly in the Pneumatic cylinder barrel, and the surface roughness of the inner surface of the cylinder barrel should reach Ra0.8μm.
At the same time, the end cap is also an important component. Under normal circumstances, corresponding intake and exhaust ports are set on the top of the end cap, and some are also provided with a buffer mechanism in the end cap. The rod side end cover is provided with a sealing ring and a dustproof ring, which can avoid air leakage from the piston rod and prevent external dust from mixing into the Pneumatic cylinder. There is a guide sleeve on the end cover of the rod side, which can improve the guiding accuracy, and can also bear the lateral load of the upper part of the piston rod, reduce the bending amount when the piston rod is extended, and increase the service life of the cylinder.
In the cylinder, the guide sleeve components are generally made of calcined oil-containing alloys and forward-inclined copper castings. At the same time, in order to reduce the net weight and achieve the anti-rust effect, the end cover is mainly made of aluminum alloy die-casting, and the mini pneumatic cylinder is made of copper material.
In addition, in the whole equipment, the piston is an important pressure-bearing part. At the same time, in order to prevent the left and right cavities of the piston from blowing gas from each other, a piston sealing ring is provided. The wear-resistant ring in the piston can improve the dominance of the air cylinder, reduce the wear of the piston sealing ring, and reduce the frictional resistance. The wear-resistant ring is generally made of materials such as polyurethane, polytetrafluoroethylene, and cloth resin. The overall width of the piston is determined by the size of the seal and the length of the necessary rolling section. Rolling part is too short, easy to cause initial damage and jamming.
In addition, an important component is the piston rod. As an important force-bearing part in the pneumatic cylinder, the piston rod is generally made of high carbon steel, the surface is plated with hard chrome, or stainless steel is used to resist corrosion and improve the sealing ring. Abrasion resistance.
Post time: Sep-22-2022