Effect Of Sealing And Eccentric Load On The Normal Operation Of Hydraulic Press
Jul 18, 2019
The effect of sealing and eccentric load on the normal operation of the hydraulic machine, hydraulic oil leakage is a common fault of the hydraulic machine. The main cause of leakage of hydraulic oil is the failure and damage of the seal. The failure and damage of the cylinder seals are mainly caused by aging and wear.
In addition, the eccentric load will cause accelerated wear of the hydraulic cylinder seals, especially the four-column hydraulic press and the single-column hydraulic press, which have poor anti-offset capability. The partial load means that the geometric center of the workpiece is inconsistent with the center line of the cylinder, or the shape of the workpiece is irregular. When the cylinder is pressurized, the cylinder cannot be pressed vertically, and a horizontal component is generated to the piston of the cylinder to accelerate the wear of the piston seal. In order to avoid the eccentric wear of the cylinder seal, the hydraulic machine user should try not to use the eccentric load. If it is necessary to press the eccentric load, a hydraulic machine with a strong anti-offset capability such as a frame hydraulic machine can be selected.
Failure and damage to the hydraulic system piping interface and valve interface seals are mainly caused by aging and vibration. Hydraulic machine piping interface and valve interface seals are wearing parts, and the normal service life is generally 1-3 years, so hydraulic machine users should regularly check and replace the pipeline interface and valve interface seals. The company's pipeline interface and valve interface adopt the best domestic seals, and the anti-aging performance is better. The large-diameter pipelines are all flanged interfaces. The high-pressure pipelines are made of steel pipes and high-pressure hoses. The long pipelines are all provided with reliable pipe clamps. The low-pressure large-diameter pipelines are provided with flexible isolation joints. The measures ensure good seismic performance of the hydraulic machine piping.
