Hydraulic cylinder

Hydraulic cylinder installation precautions

1. The hydraulic cylinder and the surrounding environment should be clean. The fuel tank should be sealed to prevent contamination. Pipes and fuel tanks should be cleaned to prevent detached scales and other debris. Use a lint-free cloth or special paper for cleaning. Do not try the twine and adhesive as the sealing material. Hydraulic oil according to design requirements, pay attention to changes in oil temperature and oil pressure. When empty, unscrew the exhaust bolts to vent. The piping link must not be slack. The base of the hydraulic cylinder must have sufficient rigidity, otherwise the cylinder will be arched upward when pressurized, and the piston rod will be bent. Before installing the hydraulic cylinder to the system, the parameters on the hydraulic cylinder label should be compared with the parameters at the time of ordering.
2. For the fixed position of the foot fixed moving cylinder, it should be concentric with the center line of the load force to avoid causing lateral force. The lateral force is easy to wear the seal and damage the piston. When the hydraulic cylinder of the moving object is installed, the movement direction of the cylinder and the moving object on the guide surface is kept parallel, and the parallelism is generally not more than 0.05 mm/m. The sealing gland screw of the hydraulic cylinder block is installed, and the tightening degree is ensured to ensure that the piston moves flexibly over the full stroke, and the phenomenon of no blockage and unevenness of weight and weight is suitable. If the screw is tightened too much, it will increase the resistance and accelerate the wear; if it is too loose, it will cause oil leakage. For hydraulic cylinders with exhaust valves or exhaust plugs, the exhaust valve or exhaust plug must be installed at the highest point to remove air. The axial ends of the cylinder cannot be fixed and one end must remain floating to prevent the effects of thermal expansion. Axial expansion and contraction due to factors such as fluid pressure and thermal expansion in the cylinder. If the ends of the cylinder are fixed, it will cause deformation of each part of the cylinder. The gap between the guide sleeve and the piston rod should meet the requirements.
3. Pay attention to the parallelism and straightness of the cylinder and the guide rail. The deviation should be within 0.1 mm/full length. If the length of the busbar on the hydraulic cylinder is too poor, the bottom surface of the bracket of the hydraulic cylinder or the contact surface of the scraping machine should be repaired to meet the requirements; if the side busbar is out of tolerance, the hydraulic cylinder and the fixing screw can be loosened, the positioning lock can be removed, and the correction can be made. The accuracy of its side busbars. When disassembling the hydraulic cylinder, the threads on the top of the piston rod, the cylinder threads and the surface of the piston rod are not damaged. It is strictly forbidden to hammer the cylinder and the surface of the piston. For example, there is a loss of the cylinder hole and the surface of the piston. It is not allowed to be sanded with sandpaper. It should be carefully studied with fine oil stone.
4. The hydraulic cylinder and the surrounding environment should be cleaned. The fuel tank should be sealed to prevent contamination. Pipes and fuel tanks should be cleaned to prevent detached scales and other debris. Use a lint-free cloth or special paper for cleaning. Do not try the twine and adhesive as the sealing material. Hydraulic oil according to design requirements, pay attention to changes in oil temperature and oil pressure. When empty, unscrew the exhaust bolts to vent.