(1)Base data
a. Drilling depth. 200-300m
b. Diameter of bore hole 500mm
c. Max. through hole diameter
Of rotary table 505mm
d. Drill pipe
Driving Kelly 108*108*7500mm
In-hole drill pope 89*6000mm
e. Mast
Height 11m
Max. load 15T
Front inclination 3°
f. Physical dimensions(L*W*H) 10850*2470*3870mm
g. Total weight 13.9T
(2)Power see instructions of the truck
(3)Main parameters
1. Torque and out put speed of rotary table (The data is based on a transmission power of 30HP)
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Description
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Clockwise(RPM)
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Counter-clockwise(RPM)
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Gear shift
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1
|
2
|
3
|
|
Rotation speed(RPM)
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52
|
78
|
123
|
40
|
|
Torque(N.m)
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4047.4
|
2695
|
1715
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5262.6
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2. Hoist
Max. Capacity(1 speed, single rope):
Main hoist 29.4KN
Sand reel hoist 19.6KN
Tool hoist 19.6KN
Diameter of drum:
Main hoist 273mm
Sand reel hoist 268mm
Tool hoist 268mm
Rotation speed and hoisting speed for single rope (Based on 2nd layer rope)
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Description
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Main hoist
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Sand reel hoist
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Tool hoist
|
|
Gear shift
|
1
|
2
|
3
|
1
|
2
|
3
|
1
|
2
|
3
|
|
Rotation speed (rpm)
|
43
|
85
|
122
|
21.5
|
42.5
|
61
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21.5
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42.5
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61
|
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Diameter of steel rope (mm)
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15.5
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15.5
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9.3
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|
Hoisting speed (m/s)
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0.716
|
1.42
|
2.04
|
0.353
|
0.698
|
1.00
|
0.332
|
0.658
|
0.945
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Length of steel ropes (all are standard GB-1102-74)
For main hoist of rotary drilling (15.5) 120M
For sand reel hoist (15.5) 120M
For tool hoist (9.3) 120M
3. Guide pressuring mechanism
Max. pressure applied 2000Kg
Pressuring travel 1000mm
Diameter of wire rope for pressuring 9.3mm
Diameter of guide rod 50mm
Chassis
4.Model:“DONG FENG”truck( diesel-driven)
EQ1141KJ
Axle spacing 4500mm
Front wheel (Along ground surface) 1940mm
Rear wheel 1860mm
(Distance between centerlines of two tires)
Angle of approach 34°
Angle of departure 13.3°
Number of tires front 2 11.00-20
Speed of truck mounted drilling rig 50Km/h (Limiting speed)
5.Hydraulic breakout gun mechanism(For loosening the 1st
turn of the drill tool)
Travel 185mm
Bore diameter of oil cylinder 110mm
Torque for pipe dismantling
Rated oil pressure of hydraulic system 6.86Mpa) 2.62KN.m
Max. ( max oil pressure of hydraulic system 9.8Mpa) 4.02KN.m
6.Hydraulic oil pump
Model CB-32 gear pump (clockwise)
Displacement 32.6ml/rev
Rotation speed 1100-1625rpm
Rated pressure 9.8Mpa
Volumetric efficiency 0.9
Power required (at 1500RPM) 12.1Hp
Net weight 6.7Kg
7.Mud pump
Model BW900/25
Max pressure 2.5Mpa
Max displacement 1030L/min
Power required 45KW
Internal diameter of intake pipe 4
Internal diameter of discharge pipe 3
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