Two sealing parts in hydraulic cylinders and assembly requirements of seals

For hydraulic cylinders, the required site manufacturing products, the seals are very necessary, so we must work hard to familiarize them so that they can obtain good sealing effects through accurate applications in practice. Therefore, the above goals will be reached through some specific aspects below.

1. Sealing of cylinder tube and cylinder head in hydraulic cylinder seal

In hydraulic cylinders, for the seal between the cylinder barrel and the cylinder head, O-rings are usually used to develop the seal. What's more, in the process of using the sealing ring, pay attention to its matching clearance, which should be reasonable. In addition, if you want to improve the pressure-bearing ability of the sealing ring, you can install a nylon backing on the squeezed side. If you want to prevent loosening due to vibration, you can increase the pre-tightening force of flange bolts and cylinder head screws.

2. Sealing of the piston rod and the inner hole of the cylinder head guide sleeve in the hydraulic cylinder seal

Regarding this sealing mode, in terms of decision, it can be Y-shaped, V-shaped, U-shaped, Yx-shaped, etc. Everyone can make a choice according to the detailed actual situation. It is nothing more than to pay attention to that it has a superficial character scale. The first thing is to avoid defects such as impurities, bubbles, burrs and scratches. If there is, it can only be changed.

3. Assembly requirements for piston seals

In hydraulic cylinder seals, there are some assembly requirements for piston seals. Specifically, they are mainly:

(1) Before disassembling the piston seal, some necessary inspections should be carried out, for example, whether it is worn or damaged. If the damage is not good, the disassembly cannot be developed because it will affect the fit clearance.

(2) To deal with the stuck key of the piston head, in terms of continuity, there should be maneuver turning and no axial clearance. If it is threaded abutment, there must be a surplus of pre-tightening torque.

The teaching of the two specific sealing parts of the hydraulic cylinder and the description of the requirements for the disassembly of the piston seals are hoped that everyone can go through these three points to deepen the familiarity of the hydraulic cylinder seals and apply the knowledge to practice Go, make it play its due infiltration and value, we can come to benefit from it.