Working principle and composition of mechanical seal-

Working principle and composition of mechanical seal

　2017-06-29　　

The working principle and composition of mechanical seal:

As a device to solve the seal between the rotating shaft and the body, mechanical seals mainly rely on the pre-tensioning of the dynamic and static ring end face seal pairs by elastic elements and the compression of the medium pressure and the pressure of the elastic elements to achieve the seal. , Also known as end face mechanical seal or end face seal. The basic structure and composition of the mechanical seal are shown in Figure 1-1.

Figure 1-1 Schematic diagram of cartridge mechanical seal

It can be seen from Figure 1-1 that the basic components that constitute a mechanical seal are: end face seal pair (moving ring 1 and static ring 2 or compensation ring and non-compensation ring, compensation ring-sealing ring connected with elastic elements; non-compensation Ring-sealing ring not connected with elastic elements), elastic elements (such as spring 13), auxiliary seals (such as O-rings 4 and 8), transmission parts (such as transmission pin 14 and transmission screw 10), anti-rotation parts (such as Anti-rotation pin 3) and fasteners (such as spring seat 11, push ring 9, gland 7, set screw 12, shaft sleeve 6, etc.).

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The personalization and service system of mechanical seals continue to enhance the role and requirements of the components of mechanical seals