As the core power transmission component of an electric forklift, the stable operation of the hydraulic system directly affects the operating efficiency and service life of the equipment. Among them, hydraulic YouTube and oil seal are key components to ensure the sealing of the hydraulic system. If there is loss in daily use, it is easy to cause hydraulic oil leakage, insufficient power and other failures, increasing operation and maintenance costs.
The loss of hydraulic YouTube is mainly due to several factors. First, long-term exposure to high pressure impact, frequent lifting and steering operations of forklifts will cause YouTube to be repeatedly affected by pressure changes, and fatigue cracks will gradually appear on the pipe wall, especially in the joint part where stress is concentrated, which is more likely to be damaged. Second, external wear, sand, gravel and sharp objects in the working environment may scratch the surface of YouTube. If it is not found in time, the damage will gradually expand, and eventually lead to hydraulic oil leakage. Third, the oil temperature is too high. The long-term high-load operation of the hydraulic system leads to an increase in oil temperature, which accelerates the aging of the tubing material and reduces its pressure resistance performance, thereby increasing the risk of damage.
The loss of oil seals also has multiple incentives. The first is the natural aging of the seal itself. With the increase of use time, the rubber material of the oil seal will harden and crack due to oxidation and high temperature environment, lose its original elasticity, and cannot fit the parts tightly, resulting in seal failure. Secondly, improper assembly. If the installation position of the oil seal is offset or over-squeezed during maintenance, the sealing surface will be unevenly stressed, and leakage may occur in a short time. In addition, impurities in the hydraulic oil are also important factors. After impurities enter the sealing surface, they will continue to wear the lip of the oil seal, destroy the sealing effect, and increase the loss rate.
When selecting maintenance parts, it is necessary to give priority to matching the hydraulic YouTube and oil seal of the suitable specifications to ensure that the material and size are consistent with the original parts, so as to avoid aggravating subsequent losses due to adaptability problems. YouTube should choose high-quality materials that are resistant to high pressure and wear, and the oil seal should have good high temperature resistance and oil resistance to adapt to the operating environment of the hydraulic system. During daily maintenance, it is necessary to regularly check the surface of the YouTube for cracks and damage marks, whether there is loosening at the joint, and whether there are signs of oil leakage at the oil seal part. At the same time, reasonably control the oil temperature of the hydraulic system, avoid long-term high-load operation, replace the deteriorated hydraulic oil in time, reduce the wear of impurities on the seal, and reduce the probability of loss from the source.
Through in-depth understanding of the causes of loss of hydraulic YouTube and oil seals, rational selection of maintenance parts and daily maintenance management can effectively reduce the failure rate of the hydraulic system of electric forklifts, prolong the overall service life of the equipment, and improve the stability and safety of the operation process.
