Takeuchi TB53FR - Swivel Joint

HYDRAULIC UNITS
SWIVEL JOINT
IV-151 TB53FR
SWIVEL JOINT
CONSTRUCTION
1. Shaft
2. Hub
3. Flange
4. Thrust Ring
5. Pin
6. Slipper Seal
7. O-ring
8. O-ring
9. Backup Ring
10. Dust Seal
11. Snap Ring
12. Plug
13. Dust Seal
OPERATION
The swivel joint is mounted in the center of the
machine’s slew axis. It serves the role of maintaining
continuous connections in the hydraulic circuit re-
gardless of the upper frame’s slew angle.
Above the hub (1) and shaft (2), which are capable of
rotating together, ports (3) are included for oil for the
necessary number of circuits only. The inner circum-
ference surface of the hub and the outer circumfer-
ence surface of the shaft, grooves are cut which serve
as passages for hydraulic oil. Seals (4) are placed
above and below these circumferential grooves.
Oil flowing in from a port flows constantly through
this hydraulic passage (5) between the hub and shaft
and the circuits can be connected without a break
when the upper frame is slewing.
J1D700
5
4
11
3
8
2
6
7
9
13
10
12
1