Engineering machinery seals how to choose - Solutions - Huaqiang Electronic Network

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In the management of engineering machinery seals, how to correctly select the hydraulic seals is an important part of ensuring the normal operation of the hydraulic system of engineering machinery. The work experience shows that the hydraulic system is required to analyze the seals. Master the technical performance and seal of the hydraulic seals. Mechanism, use characteristics, and reasonable selection of seals according to requirements. It is an effective method to ensure the mechanical performance of the hydraulic system. In the process of hydraulic seal management, there is a general problem of insufficient knowledge of hydraulic seals, and lack of understanding of the hydraulic system. Therefore, in the process of dispensing and using the parts. . Frequently, improper selection of seals, unreasonable use of substitutes, wrong type of models, etc., cause the hydraulic system to lose the sealing effect. So how to choose hydraulic seals is very important.
In the process of selecting the hydraulic seals, the system should be analyzed first, the characteristics of the seals should be clearly defined, and the sealing mechanism and the use characteristics of the seals should be distinguished. It is necessary to distinguish whether it is a primary seal or a secondary seal. Generally, the primary seal is subjected to a high pressure, and the secondary seal is not subjected to pressure or has a low pressure. The requirements of the main seal require high temperature resistance, low friction and wear, strong oil return and pressure relief. There are many types of hydraulic seals, and the seals that meet the requirements are selected according to their different characteristics. The seals mainly have compression seals and lip seals. The compression seals are mainly o-shaped seals and circular seals. And square seals, etc. The lip seal is mainly composed of an o-ring seal combined with a square seal ring, a u-shaped seal ring, a y-shaped seal ring, a yx-shaped seal ring and other special-shaped hydraulic seal rings.
In the process of hydraulic seal management matching, engineering machinery seal management personnel only have a profound analysis of the working principle and requirements of the system. Skilled in understanding the structural form, sealing mechanism, material characteristics, main performance uses of various types of hydraulic seals, in order to properly select the required hydraulic seals during the maintenance process. Ensure that the construction machinery is operating normally and improve the economic efficiency of the enterprise.