Short Description:
The Swivels of rotary drilling rig are mainly used to lift the kelly bar and drilling tools. The upper and lower joints and intermediates of the elevator are all made of high-quality alloy steel; All internal bearings adopt SKF standard, specially customized, with excellent performance; All sealing elements are imported parts, which are resistant to corrosion and aging.
The Swivels of rotary drilling rig are mainly used to lift the kelly bar and drilling tools. The upper and lower joints and intermediates of the elevator are all made of high-quality alloy steel; All internal bearings adopt SKF standard, specially customized, with excellent performance; All sealing elements are imported parts, which are resistant to corrosion and aging.
Technical Parameters
|
Standard Dimension |
||||||||
|
Model |
D1 |
D2 |
D3 |
A |
B |
L1 |
Number of bearings |
pulling force (KN) |
|
JT20 |
¢120 |
¢40 |
¢40 |
43 |
43 |
460 |
3 |
15-25 |
|
JT25 |
¢150 |
¢50 |
¢50 |
57 |
57 |
610 |
4 |
20-30 |
|
JT30 |
¢170 |
¢55 |
¢55 |
57 |
57 |
640 |
4 |
25-35 |
|
JT40 |
¢200 |
¢60¢80 | ¢60¢80 |
67 |
67 |
780 |
5 |
35-45 |
|
JT50 |
¢220 |
¢80 |
¢80 |
73 |
83 |
930 |
6 |
45-55 |
Advantages
1. The swivel of the rotary drilling rig is a metal connection structure, and the upper and lower joints, intermediates, etc. are made of forged alloy steel. After rough machining, strict heat treatment process shall be carried out before processing.
2. Bearing SKF and FAG are adopted for internal bearing.
3. The sealing element is NOK, the grease in the bearing inner cavity is not easy to leak, and the mud and sundries in the outer cavity are not easy to enter the bearing cavity, so as to ensure the normal operation of the bearing.
