How To Choose The Construction Machinery Sealing Ring Correctly?
Mar 03, 2022
According to the working experience of the mechanical seal ring, it is also shown by analyzing the requirements of the hydraulic system for the seal ring. Master the technical performance, sealing mechanism, and use medium characteristics of the hydraulic sealing ring, and reasonably choose a more suitable sealing ring according to different requirements.
In order to ensure the mechanical properties of the hydraulic system. There are common problems such as uncertainty about the hydraulic seal ring and lack of knowledge about the hydraulic system. Therefore, in the process of purchasing and using the secret piece. Improper selection of sealing rings, unreasonable use of substitutes, wrong models, etc. often occur, resulting in the failure of the hydraulic system seal. So how to choose the correct sealing ring is very important.
In the selection process of the hydraulic seal ring, the system should be divided first, the special certification requirements of the seal ring should be clarified, and the sealing mechanism and use characteristics of the seal ring should be distinguished. To distinguish whether it is the main seal or the auxiliary seal, the main seal generally bears a strong pressure, while the auxiliary seal does not bear the pressure or the pressure is very low.
The main seal has four requirements:
1 High temperature resistance.
2. Low friction and wear.
3. Strong oil return ability.
4. Pressure relief function.
There are many kinds of hydraulic seals, and the seals that meet the requirements are selected according to their different characteristics.
There are mainly two types of compression seals and lip seals:
1 The compression-type sealing ring is mainly an O-shaped sealing diagram, a circular sealing diagram and a square sealing ring.
2: The lip seal is mainly composed of the superimposed use of the O-shaped seal and the square seal, U-seal, Y-seal, YX-seal and special-shaped hydraulic seals.
In the process of hydraulic seal management and purchase of construction machinery seals, only by being familiar with the working principles and requirements of the analysis-based hydraulic system, and proficient in various types of seal structures, sealing mechanisms, material durability, and main performance uses, can they be used in the maintenance process. Zhongli correctly selects the hydraulic sealing ring that meets the requirements. Ensure the normal transportation of construction machinery and improve economic efficiency.
