Causes and troubleshooting of creeping phenomenon

2022-08-18
  • Detail

Causes and troubleshooting of creeping phenomenon when the hydraulic cylinder is working

causes and troubleshooting of creeping phenomenon when the hydraulic cylinder is working are as follows: 1) there is air intrusion in the cylinder. An exhaust device should be added, or the hydraulic cylinder should move quickly with the maximum stroke to force the air out. 2) The sealing ring at the end cover of the hydraulic cylinder is pressed too tightly or too loosely. The sealing ring should be adjusted to have an appropriate loosening solution: tightness, so as to ensure that the piston rod can be pulled back smoothly by hand without leakage. 3) The coaxiality of piston and piston rod is not good. It should be corrected and adjusted. 4) The hydraulic cylinder is not parallel to the guide rail after installation. Adjustment or heavy stress deformation shall be carried out for new installation. 5) The piston rod is bent. The piston rod should be straightened. 6) Poor rigidity of piston rod. Increase the piston rod diameter. 7) The clearance between the moving parts of the hydraulic cylinder is too large. The fit clearance should be reduced. 8) The installation position of the hydraulic cylinder is offset. The parallelism between the hydraulic cylinder and the guide rail should be checked and corrected. 9) Linear difference of inner diameter of hydraulic cylinder (drum, cone, etc.). Repair and refit the piston. 10) Corrosion and galling in the cylinder. Rust and burrs shall be removed, and boring and grinding shall be carried out when strictly required. 11) The nuts at both ends of the piston rod of the double outlet rod piston cylinder are screwed too tightly, making its concentricity poor. Loosen the nut slightly, so that the piston 3 can give an alarm in time and the supply voltage is in a natural state if it does not meet the following table. a

Copyright © 2011 JIN SHI