Bulldozer DFY-3

Bulldozer DFY-3
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Bulldozer DFY-3

The bulldozer has the advantages of advanced structure, labor-savingoperation, low fuel consumption, convenient use and maintenance and reliablequality. It can be equipped with various devices, such as traction frame,coal-pushing shovel, ripper and capstan. The bulldozer is applicable to variousworking conditions. The design of instrument assembly is simple and easy tounderstand, which is used to monitor coolant temperature of the engine, oilpressure, oil temperature of transmission system and electrical instrument. Thevisual field of cab is wide. The bulldozer features good working adaptability,working efficiency and convenient maintenance.
The Bulldozer is track-type model which utilizes semi-rigid suspension, mechanicaldrive and hydraulic control. It can be used in road building, hydro-electricconstruction, field modification, port and mine development and otherconstructions.

Specifications

Operation weight

17.0 t

Horsepower

103.0 kW

Max. drawbar pull

137.5 kN

Ground pressure

65.0 kPa

Min. turning radium

3.9 m

Min. ground clearance

355 mm

Gradient:

longitudinal 30 °, transverse 25 °

Working efficiency within 40 meters:

169 m 3 /h

Blade capacity

4.05 m 3

Diesel Engine (Bulldozer)
Type: Water-cooled, 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 seriesfuel injection pump
Piston displacement:12L
Rated rotation speed:1800r/min
Rated horsepower:114kW
Oil consumption: rated horsepower
Fuel consumption:≤ 238 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
Type: Straight line with water cooled and pressure boost, direct injection
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
Rated power/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 (Bulldozer)
Main clutch: normally opened, multi-plate, powder metallurgy friction plate andhydraulic booster control. Transmission: normally meshed helical gear drive, couplingsleeve shift and two lever operation .The transmission has five forward speedsand four backward speeds.

Forward

Backward

First speed

2.5km/h

First speed

3.53km/h

Second speed

3.55km/h

Second speed

4.96km/h

Third speed

5.68km/h

Third speed

7.94km/h

Forth speed

7.53km/h

Forth speed

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 directionfloating band brake operated by mechanical foot pedal.

Final drive
Two stage gear deceleration, Duo-cone floating seal, and combined carrier rollerto facilitate service.

Undercarriage(Bulldozer)
Inner and outer beam of track roller frame are rectangular section “” frame.Track roller, carrier roller, idler are mounted with long life well sealedDuo-cone floating ring seal.
Track roller (each side): Singe flange:4
Double flange:2
Carrier roller (each side):2
Idler (each side)@1 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 (Bulldozer)
It is consists of implement oil pump , hydraulic tank and various valves,cylinders , filters and oil lines .
Pump type : gear pump
Pump model :CBF - E 100A ( reverse )
System flow :180 L / min
System pressure :11.77 MPa
Single valve : used in angle blade
Used in coal pushing blade △ Directions valves: Four positions , five way spoolvalve
Positions of valve :Raise, lower, floating, hold
Number of cylinders - bore x stroke 2 -¢ 100 × 905mm
Double valves :used in angle blade and ripper
Ripper and direction valve: three positions , five way spool valve
Positions of valve: Raise, lower , hold
Number of ripper cylinders - bore × stroke: 2 -¢ 125 × 325mm
Double Valve: used in straight blade △
Tilting direction valve: three positions, five way spool valve
Positions of valve: left tilting, right tilting, hold
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
When the bulldozer companied with tilting blade is equipped with ripper, a set ofoutside valves can be installed outside of inner case of hydraulic control tank.


Cab (Bulldozer)

The cab is equipped with adjustable seat and electric fan with the character oflow noise and excellent viewing area .
The following cabs can be selected by users .
1.Cab with air-conditioner
2.Conopy with RopS
3.Simple structure canopy

Service Refill (Bulldozer)

Fill location

Capacity (L)

Radiator and diesel engine water

60

Lubricating system of diesel engine

oil 25

Flywheel house, main clutch

oil 35

Transmission, bevel gear case

oil 90

Final drive (each)

oil 24

Implement hydraulic system

oil 85

Fuel tank

oil 230

Idler, track roller, carrier Roller

oil 0.35 each


Blade Specifications (Bulldozer)

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

 

 

9m 3


Ripper Specifications (Bulldozer)

Number of shank

3

1

Length

1580 mm

1580 mm

Width

2020 mm

1220 mm

Height

1236 mm

1236 mm

Max. penetration

550 mm

550 mm

Max. clearance

510 mm

510 mm


Note: Materials and specifications are subject to change without notice.

 

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