The bursting of hydraulic oil pipe is a headache for many excavators, because the bursting of pipe will cause hydraulic oil leakage, and it takes time and energy after maintenance. What are the common causes of hydraulic tube explosion?? What will be done after the pipe burst to minimize the loss?
Common causes of hydraulic tube explosion
1. Use hydraulic pipes with poor quality
After the original hydraulic pipes are damaged, many Chinese people can choose inferior hydraulic pipes with poor teaching quality in order to save money. The performance and reliability of such hydraulic pipes are far inferior to the original ones.
In addition, the metal joints at both ends of the hydraulic pipeline are not well crimped, and the sealing and reliability cannot be guaranteed. After a period of use, it saves oil or even leaks oil. Therefore, the replacement of hydraulic pipeline must select the regular large brand 名媛直播
2. Hydraulic system pressure too high
If the preset pressure of the hydraulic system is too high, the probability of pipe burst will be increased. The method combines various actions to test the pressure generated by the main pump. If the pressure value is confirmed to be too high, the pressure of the multi-way valve can be appropriately reduced
3. Hydraulic oil temperature too high
If your machine learning hydraulic control system is at high temperature, it will also affect the sealing of hydraulic components in China and cause tube explosion and leakage; In addition, the high temperature will cause the hydraulic components to expand, causing the valve core and valve body to be stuck, forming a local high temperature environment and causing pipe explosion.
4. Mix different grades of hydraulic oil
The excavator factory generally uses 46 # hydraulic oil. By default, if 68 # ordinary hydraulic oil is used in the accessory shop, the hydraulic oil will be unstable and damaged. High viscosity oil has poor fluidity, and the hydraulic system will produce high partial pressure, which is easy to cause line leakage.
5. Bad operating habits
If the operation of the manipulator is simple and rough when the operation is completed, the huge impact load will produce a transient impact social pressure in the development of the hydraulic control system, and the impact economic pressure will lead to premature failure, oil leakage or pipe explosion at the pressure joint of the high-pressure oil pipe joint and the rubber pipe in China, which will greatly shorten the service life of the hydraulic pipe network. In addition, rough operation will also affect the durability of other relevant parts of the enterprise and cause frequent mechanical equipment failures. Therefore, the normal operation of the excavator must be soft, and no high-intensity and high-risk actions are required.
6. The hydraulic pipe is corroded
At present, most hydraulic pipelines have certain corrosion resistance, but after all, rubber 名媛直播 contacting diesel oil for a long time will make the colloid fluffy and deteriorated.. to have certain adverse effects, try not to let the hose contact gasoline and diesel oil. Generally, rubber will expand and the colloid fluffy when soaked in gasoline and diesel oil for a long time.. therefore, it is necessary to avoid diesel oil and other corrosive liquids contacting the hose during normal use, and the outer surface of the hydraulic pipe should be cleaned frequently
7. Abnormal vibration of hydraulic pipe
The pulsation of the working fluid of the gear pump and the piston pump and the pulsation of the high-frequency vibration generated by the hydraulic piping can not be completely eliminated. Long term abnormal vibration may cause fatigue wear of hydraulic pipes. Therefore, it is necessary to regularly check the protective sleeve clamp and hydraulic pipes. Once the pipe clamp is loose, the hydraulic pipes, hydraulic hoses and even wear.
