Causes and solutions of external leakage of piston rod

The piston rod is a very important actuator in construction machinery. The stability of its quality during use will directly affect the reliability and work efficiency of construction machinery. The piston rod can effectively pass the three-guarantee failure rate of the loader. Statistical Analysis.
The leakage of the piston rod is the most prominent quality problem. Although various measures have been taken to improve the hydraulic cylinder production and enterprises, the effect of its use is not very significant. The reason for the external leakage of its equipment may be because Seal failure and oil contamination.
During the actual use of the piston rod, people still do not pay enough attention to the dustproof ring of the hydraulic cylinder and the dustproof effect. The structure selection of the dustproof ring of the product is unreasonable. Individual users in highly polluted mines, coal mines and other places.
The piston rod works continuously for more than ten hours every day with overload and over-temperature operation, which requires its dust-proof ring to have high anti-pollution and high-temperature resistance functions. So far, the single-lip dust-proof ring can no longer meet the needs of its construction machinery. Judging from the dismantled hydraulic cylinder dust ring, it basically lost the dustproof function.
The dust-proof ring of the piston rod has poor protection measures during the assembly process, which can be mainly manifested in the painting process of the whole construction machinery machine, and no protection measures are taken for the dust-proof ring of the hydraulic cylinder, which will cause the lip of the dust-proof ring to be damaged. There is paint residue in the area.
The surface of the piston rod is bruised, the main reason is that the bucket moves during the lifting process of the loader, which will cause the material in the bucket to slide down and effectively hit the surface of the protruding piston rod, which will It causes tiny pits on the surface of the piston rod, which increases the friction between the sealing ring and the piston rod.