Inadequate sealing during mechanical use is the main cause of oil leakage

In tunneling projects, the use of shield machine repair kits with poor sealing is the main cause of oil leakage.

When the shaft is worn out and forms a groove-like shape, even if a new shield machine repair kit is replaced, it cannot be restored to a sealed state, what is the reason for this? In fact, because the contact pressure between the lip of the shield machine repair kit and the shaft is reduced, the interference between the lip diameter of the rubber oil seal and the shaft diameter is too small after installation.

* Now take the shield machine repair kit in the shield machine hydraulic machine system as an example, the main factors and measures to analyze its tightness are.

1. poor quality of the repair kit seal, you can choose high quality and standard GUIQI oil seal seal.

2. poor quality of the shaft or bearing.

3. Improper use and maintenance, timely inspection, maintenance and repair.

4. Improper installation, grease should be applied and the surface of shaft diameter should be polished smooth, pay attention to lip installation and avoid flanging.

5. improper storage and environmental pollution caused by the adverse effects, should eliminate the fault, to avoid serious damage to the seal during mechanical operations.

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