Self-compensating sealing technology of inner cavity medium pressure

In the past, the more traditional hydraulic-pneumatic sealing technology required the help of some media that can push the piston to run, which would be subjected to extremely large radial forces and thus the transaction would be destroyed.

Therefore, replacing the traditional sealing technology with the internal cavity medium pressure self-compensating sealing technology can fully overcome this problem. This new type of sealing technology is mainly to achieve the sealing effect of the sealing ring through the corresponding medium in the inner cavity, which will effectively reduce the pressure directly generated by the sealing ring and the medium, and make up for the traditional hydraulic and pneumatic sealing device problem.

This new type of sealing technology is mainly to form a medium-operated inner cavity. The formation of this inner cavity requires the help of grooves or sealing rings in the piston part of the cylinder, or the medium produced by the groove of the piston end cover. Form an inner cavity. If the pressure of the medium in it is increased, the piston rod will run due to the driving force, and the pressure of the inner cavity medium will rely on the radial and the piston end cover. The axial small hole enters the working cavity of the medium, and then squeezes the sealing ring to ensure that the cylinder surface or the surface of the piston rod can be firmly attached to the working surface of the sealing ring to achieve the purpose of sealing.

The effect of this new type of sealing technology is remarkable. If the pressure of the medium increases, the radial force of the sealing circle will also increase, which makes the sealing effect better. This new type of sealing technology can achieve the best sealing effect within the maximum pressure limit of the sealing ring and corresponding materials.

Compared with the previous lip sealing ring sealing technology, the internal cavity medium pressure self-compensating sealing technology can not only achieve the maximum sealing effect, but also does not appear to be worn out, which effectively extends the service life of the ring body. The medium pressure of this new type of sealing technology is formed by the extrusion between the inner cavity and the sealing ring.

In addition, the inner cavity medium pressure self-compensating sealing technology has many bosses on the working surface of the sealing ring. Its function is similar to a lip, but the boss has more channels, which is similar to many lips. This kind of seal is equivalent to many labyrinths, which greatly improves the maximum bearing force or impact force of the sealing member, and effectively shortens the sealing cycle. Compared with the traditional sealing technology, this new type of sealing technology has extremely strong stability and The sealing effect is excellent.

Compared with the previous type 0 sealing ring technology, this new type of sealing technology is basically in an extremely relaxed state when the medium pressure is less. Even under high pressure, the medium is The squeezing force of the sealing ring is also relatively uniform and will not produce too obvious deformation. Therefore, when this new type of sealing technology is adopted, as long as the material of the sealing ring is appropriate and the medium that needs to be used is relatively stable, the sealing ring will reach long-term It is stable, and it takes a long time to ensure the sealing effect.

Lastest Posts

Hydro-pneumatic sealing technology

At present, in the process of continuous social and economic development and improvement, many high-tech technologies have emerged, promoting the development and progress of mechanical automation related fields. Related technologies...

Scroll to Top