Cleaning, storage and installation of large cylinders

1. Clean the oil

In order to ensure the longevity of large oil cylinders, effective filtration must be installed on the hydraulic system to prevent pollution, the cleanliness of the oil must meet ISO4406 standards, and the quality of filtration must also meet ISO standards. The filter level requirements should be implemented according to the actual situation of the system, but the minimum requirement is greater than or equal to ISO440619/15, that is, the 2.4 (1.07.5) level in ISO4572.

2. Storage of large oil tanks

When the large oil tank needs time, please follow the recommended method below. The large oil tank should be stored in a dry, clean, and non-corrosive gas indoor environment. Pay attention to the protection of the large oil tank to prevent internal corrosion and external damage. The large cylinder should be placed as vertically as possible with the piston rod upward. This may occur when corrosion caused by condensation in the large oil cylinder and permanent deformation of the seal caused by the weight of the piston and piston rod are minimized. Keep the communication port cover until the pipes are engaged. For long-term storage, please add protective oil to both sides of the piston of the cylinder to prevent internal corrosion of the cylinder. When the large cylinder is placed outdoors for a while, the uncoated surface like the piston rod must be protected.

3. The installation of the large oil cylinder can only remove the protective cover of the communication port when the pipe is connected to prevent foreign matter from entering. The connecting pipe is connected to the cleaning side. The oil of the hydraulic system must be equipped with a filter for regular inspection. In the case of a large amount of dust fibers, fast-drying chemical substances attached, and high-temperature impurities scattered, large oil cylinders are necessary for protection. The piston rod is completely fastened to the load. Please check whether the connecting screw is loose. Regularly check whether the guide rail of the seal at the front end of the piston rod is loosened with the rotation of the piston rod. Whether the guide rail is loosened with the rotation of the piston rod. When the piston rod of a large oil cylinder is connected to the end of the piston rod, when the piston rod must be in the same straight line when the piston rod is extended and shortened, the cover and cylinder barrel are excessively worn and the life of the cylinder is shortened. Precautions for the installation methods of various large cylinders c. In order to prevent the connecting bolts from shearing force, it is recommended to choose the cloud push Niubi or cloud push structure. The tie rod installation method and the extension length of the tie rod can be customized, and the installation torque is the same as the tightening torque of the tie rod. Please lubricate the trunnion installation method in advance and select the bearing that must be strictly aligned with the trunnion and prevent bending moment. The pin connected to the stud with the smallest fit gap must be parallel to the center line of the trunnion; the bearings are regularly lubricated. The earring installation method is strictly parallel to the bearing installation pins at both ends. In the radial ball bearing, the large oil cylinder can swing freely within the swing range of the bearing and does not interfere with the surrounding parts. The bearing must be cleaned and lubricated regularly to check for leaks, Damaged, rusty, check whether the bearing is loose. For bearings with dust ring, check whether the dust ring is damaged or falling off. If there is any abnormality, please replace the shaft to accept parts immediately. Regarding the ear skin installation method, (1) The gas socket is the basis of the whole ear skin connection (including the ear skin, gas socket, stud, and nut column). The material, structure and size of the gas seat is one of the main factors affecting the bolt force and the torque of the ear skin. (2) If the wall thickness of the wall (or tube wall) connected to the ear skin is thickened, not only can the flexural stress applied from the ear skin to the wall be reduced, but the thickened wall can increase the ear skin The rigidity reduces the flexural stress of the ear skin. (3) The three stresses that mainly act on the strength of the ear skin are the flexural stress. Since the magnitude of the flexural stress is inversely proportional to the square of the thickness of the bent part, the important dimension that determines the strength of the ear skin is the thickness of the ear skin. In the necked ear skin, increasing the thickness of the neck is more effective than increasing the thickness of the ear skin. (4) Under the condition of a certain bolt force, the smaller the distance between the center circle of the threaded hole of the ear skin and the diameter of the gas shell sheet, the smaller the external force moment on the ear skin.