It is necessary to strictly follow the technical requirements of the oil cylinder, and the device is firm and firm without any looseness. When installing reciprocating oil cylinders, the following points should be achieved.
① When the plastic granulator has a large stroke and high ambient temperature, the oil cylinder can only be fixed at one end, and the other end can be kept in a free telescopic state, so as to prevent the deformation of the cylinder block caused by thermal expansion.
② The sealing ring of the oil cylinder of the plastic granulator should not be installed too tightly, especially I; If the O-ring seal is too tight, the movement resistance of the piston rod will increase.
③ The center line of the oil cylinder should be concentric with the action line of the load force to prevent the normal force, otherwise the seal body or piston is easy to wear.
④ The pin hole at the end of the piston rod should be in the same direction as the pin hole (or trunnion) of the earring, otherwise the oil cylinder will be subjected to a zigzag load with the trunnion as the fulcrum, causing wear, jamming and other phenomena.
⑤ Before installing the plastic granulator, it is necessary to carefully check the processing quality of the shaft end, hole lock, etc., chamfer and remove burrs, and then clean it with kerosene or gasoline and dry it.
⑥ For the oil cylinder with large stroke, support should be set in the middle of the cylinder block and piston rod to prevent downward bending of its own weight.
⑦ The device surface and the sliding surface of the piston should maintain a certain degree of parallelism and straightness.