The steel hydraulic acrow props emulsion overflows in different situations, mainly depending on which part of the emulsion overflows. According to the experience of the China Coal Group for many years for steel hydraulic acrow props manufacture , the emulsion mainly overflows from the handle, the base, the Φ42 hole of the column head, the check valve or the unloading valve.
Just like a person's illness, the emulsion overflows from different places, indicating that the hydraulic props have different problems. According to different problems, we must prescribe the right medicine to get the medicine to the disease. Let's take a look at the following:
1. The emulsion overflows from the handle
1) Excessive coal ash in the cylinder and damage to the seal
2), cylinder deformation, scratch, rust or plating
3), the living cylinder Φ80 hole deformation, rust or plating off
Found that this problem can be used to clean the piston, cylinder, replace the O-ring, replace the Y-ring,
Replace the cylinder or the live cylinder to solve.
2. The emulsion overflows from the base
1), the base is rusty and deformed
2), the base Φ100 × 3.1 "O" ring damage
3), cylinder deformation or plating damage or sealing surface rust
This problem can be solved by replacing the base, "O" ring or cylinder.
3. The emulsion overflows from the Φ42 hole of the column head
1), damaged by Φ42×35 “O” ring
2), the head sealing surface is damaged
For this kind of problem, try to solve by replacing the sealing ring or replacing the living cylinder.
4. The emulsion overflows from the check valve or the unloading valve
1), check valve, unloading valve is damaged
2), check valve, unloading valve sealing surface contamination
In the above problem, we can try to solve by replacing the three-way valve, or cleaning the check valve and the unloading valve.
