- As the start-up technology becomes more and more mature, the application of pneumatic hoisting equipment in the industry is more and more extensive. For the pneumatic balancer, the lubrication performance of the sealing ring is the basis for ensuring the normal operation of the piston.
- At present, grease lubrication is generally used in engineering to reduce the friction between the sealing ring and the cylinder. The thickness of the grease between the sealing ring and the cylinder and the contact pressure on the surface of the grease have a key impact on the service life of the sealing ring.
- At the same time, under the condition of pre-compression, the contact strength of the sealing ring also ensures the basis of reliability. Therefore, it is of great significance to quantitatively analyze the contact pressure on the surface of the sealing ring and the thickness of the grease film.
- At present, the most common pneumatic balancer cylinder material in engineering is carbon steel or aluminum alloy, which has high hardness and rigidity. It is generally regarded as a rigid body in the contact analysis with the sealing ring, and the sealing ring in the pneumatic balancer is generally It is an O-ring, and the material is high elastomer, which can achieve good dynamic sealing effect.