HELI CQD16X1, Руководство по эксплуатации и обслуживанию

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It is installed on the cylinder bottom. The working principle is that the circuits from A
chamber to B chamber and from B chamber to A chamber are unlocked normally,
when the pipeline bursts, a great pressure difference is produced between A chamber
and B chamber, then the shutter 4 locks the flowing hole of the valve body 1 to cut the
oil circuit from the cylinder to the outside to ensure the safety of goods and person.
Figure 4-6-11 Pipeline anti-bursting valve structure
1. Valve body 2. Guide shaft 3. Spring 4.Seperation blade
4.6.6 Telescopic cylinder
The telescopic cylinder is of piston type double acting hydraulic cylinder to
realize mast moving backward and forward. The front reach cylinder is made up of
piston, piston rod, cylinder body, cylinder bottom, guide sleeve and sealing parts. End
clearance buffering technology is applied to reduce the shock when the cylinder
moving to the end. See figure 4-6-12 for its structure.
Figure 4-6-12 Telescopic cylinder
1. Ear ring 2. Nut 3. Piston rod 4. Dust proof ring 5. Guide sleeve
6. Seal ring for axle 7. Separate blade 8. Separate blade
9. O ring 10. Bearing 11. Cylinder body 12. Seal ring for hole
13. Support ring 14.bearing
4.6.7 Tilting cylinder