NK140-I
NK140-I Bulldozer is track-type model which utilizes semi-rigid suspension, mechanical drive and hydrauliccontrol. It can be used in road building, hydro-electric construction, field modification, port and minedevelopment and other constructions.
|
Overall dimensions (L × W × H) |
5486 × 3762 × 2940mm |
|
Operation weight |
17.0t |
|
Horsepower |
103.0 kW |
|
Max.drawbar pull |
137.5 kN |
|
Ground pressure |
65.0kPa |
|
Min. turning radium |
3.9m |
|
Min. ground clearance |
355mm |
|
Gradient |
longitudinal 30°, transverse 25 ° |
|
Working efficiency within 40 meters |
169 m 3 /h |
|
Blade capacity |
4.05 m 3 |
Diesel engine
| Manufacture | SHANGHAI DIESEL CO., LTD |
| Model | 6135Ak-3S |
| Type | Water-cooling, single row, vertical,4-stroke-cycle, Diesel engine with “ω” combustion chamber |
| Number of cylinders-bore × stroke | 6-135 × 150 mm |
| Type of fuel pump | B series fuel injection pump |
| Piston displacement | 12L |
| Rated rotation speed | 1800r/min |
| Rated horsepower | 114kW |
| Oil consumption | rated horsepower |
| Fuel consumption | ≤ 3.4 g /kW · h |
| Engine oil | ≤ 3.4 g /kW · h |
| Max. torque | ( ≤ 1260r/min) ≤ 726 N · m |
| Mode of cooling | closed circulation water cool |
| Mode of starting | 24V electric starting |
| Air cleaner | horizontal two － stage filtering |
| Manufacture | WEIFANG DIESEL ENGINE CO., LTD |
| Model | WD615T1 -3A |
| Type |
Straight line with water cooled and |
| Cylinders number-Bore diameter × travel distance | 6-126 × 130mm |
| Highest rpm at unloading | 2000 ± 50rpm |
| Idle rotation speed | 700 ± 50rpm |
| Piston total displacement | 9.726L |
| Rated rpm | 1800r/min |
| Ratedpower/rpm | 115kW/1800rpm |
| Fuel consumption at rated working condition | ≤ 218g /kW · h |
| Oil to fuel consumption rate | ≤ 0.8% |
| Max.torque/rpm | 780N · m/1200-1300rpm |
| Smoke degree at rated point | ≤ 1.5Rb |
| Noise (at rated working condition) | ≤ 114dBA |
| Admissible altitude | 4000m |
Main clutch and transmission
Main clutch: normally opened, multi-plate, powder metallurgy friction plate and hydraulic booster control.Transmission : normally meshed helical gear drive, coupling sleeve shift and two lever operation .Thetransmission has five forward speeds and four backward speeds
|
|
Forward |
Backward |
|
First speed |
2.5km/h |
3.53km/h |
|
Second speed |
3.55km/h |
4.96km/h |
|
Third speed |
5.68km/h |
7.94km/h |
| Forth speed |
7.53km/h |
10.53km/h |
|
Fifth speed |
10.61km/h |
Steering and braking
Steering clutch: Multiple-disc oil powder metallurgy disc compressed by spring. hydraulic operated.Brake is oil two direction floating band brake operated by mechanical foot pedal.
Final drive
Two stage gear deceleration, Duo-cone floating seal, and combined carrier roller to facilitate service.
Undercarriage
Inner and outer beam of track roller frame are rectangular section “八” frame .Track roller, carrier roller,idler are mounted with long life well sealed Duo-cone floating ring seal.
Track roller (each side):
|
Singe flange |
4 |
|
Double flange |
2 |
|
Carrier roller(each side) |
2 |
|
Idler (each side) |
1 |
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Type of track |
single grouser combined |
|
Tension mode of track |
hydraulic |
|
Pitch |
203mm |
|
Number of shoes(each side) |
38 pieces |
|
Width of shoe |
500mm |
|
Length of track on ground |
2570mm |
Sealed and lubricated track
The pitch , numbers and width of track shoes are the same with the general track.
Implement hydraulic system
It is consists of implement oil pump ， hydraulic tank and various valves ， cylinders ， filters and oillines．
|
Pump type |
Gear pump |
|
Pump model |
CBF － E 100A(reverse) |
|
System flow |
180 L/min |
|
System pressure |
11.77 Map |
|
Single valve |
Used in angle blade Used in coal |
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Directions valves |
Four positions ， five way spool valve |
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Positions of valve |
Raise, lower, floating, hold |
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Number of cylinders bore x stroke |
2 －￠ 100 × 905mm |
|
Double valves |
Used in angle blade and ripper |
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Ripper and direction valve |
three positions ， five way spool valve |
|
Positions of valve |
Raise, lower ， hold |
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Number of ripper cylinders-bore × stroke |
2 －￠ 125 × 325mm |
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Double Valve |
used in straight blade △ |
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Tilting direction valve |
three positions, five way spool valve |
|
Positions of valve |
left tilting, right tilting, hold |
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Number of cylinders-bore × stroke |
2 －￠ 100 × 801mm |
|
Number of cylinders(straight blade)-bore × stroke |
1 －￠ 150 × 165mm |
|
Three valves |
used in straight blade and ripper |
Cab
The cab is equipped with adjustable seat and electric fan with the character of low noise and excellentviewing area．
The following cabs can be selected by users．
1 ． Cab with air-conditioner
2 ． Canopy with Rops
3 ． Simple structure canopy
Service refill
|
Fill location |
Capacity (L) |
|
Radiator and diesel engine water |
60 |
|
Lubricating system of diesel engine oil |
25 |
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Flywheel house, main clutch oil |
35 |
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Transmission, bevel gear case oil |
90 |
|
Final drive (each) oil |
24 |
|
Implement hydraulic system oil |
85 |
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Fuel tank oil |
230 |
|
Idler, track roller, carrier roller oil |
0.35 each |
Blade specifications
|
Blade |
Angle |
Straight |
Coal pushing |
|
Width |
3762mm |
3297 mm |
4240mm |
|
Height |
1037mm |
1170mm |
1350mm |
|
Max. Digging depth |
400mm |
400mm |
|
|
Ground clearance |
1000mm |
915mm |
1000mm |
|
Tilting angle |
9 |
8.5 |
|
|
Blade capacity |
9 m3 |
Ripper specifications
|
Number of shank |
3 |
1 |
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Length |
1580 mm |
1580 mm |
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Width |
2020 mm |
1220 mm |
|
Height |
1236 mm |
1236 mm |
|
Max. Penetration |
550 mm |
550 mm |
|
Max. Clearance |
510 mm |
510 mm |
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