S.N.

Parameter

Value

1

Weight of the milling head, kg

4570kg

2

Mass of the milling module assembly, kg

18691kg (14121kg+4570kg)

3

Drawing and characteristics of the shaft, steel grade

40Cr  &45#

4

Drawing of the mating flange of the soil intake device and the milling module attachment

After the contract comes into force, provide:The size can be flexibly adjusted according to customer requirements

5

Design of the milling head drive, general view

The appearance is similar to the 640KW cutter device provided earlier

6

Outer diameter of milling head, mm

2380mm(Including tooth tip diameter 2500mm)

7

Length, mm

5640mm

8

Rotation frequency, rpm

12,24,30rpm

9

Motor power, kW

125KW*4

10

Maximum depth of motor work, m

35m

11

Twisting direction of the cutter head:

Forward and reverse rotation

12

Reversing speed, rpm

≤12rpm

13

Material of the cutter head

Alloy

a

Alloy content of cutter head

Mn1.2%, Si1.1%,C0.35%,S0.033%, P0.035%

b

Chemical composition content of cutter teeth

Mn:1.02%, C:0.26%, Cr:1.25%, Ni:0.02%,Mo: 0.02%, Si 0.72%,P 0.021%,S0.0093%,Al0.04%

c

Yield strength, MPa

1100MPa

d

Tensile strength, MPa

1350MPa

14

Number of blades, pcs.

5Pcs

15

Angle of inclination of blades

Spiral angle 45°

16

Number of crowns (teeth), pcs.

10Pcs(Single cutter arm)*5+1(Ring retainer)*5

17

Cutter crown material  

ZG35SiMn

Cutter tooth material

ZGMn13

18

Operating torque, kN*m

160kN*m

19

Maximum torque of safety device actuation, kN*m

200kN*m

20

Working volume, V0

2500L

21

Nominal oil flow rate, QM

60L

22

Hydraulic motor inlet pressure, PWH

16～17MPa

23

Hydromotor outlet pressure, PVYX

0.3Mpa

24

Torque, MKR

160kN

25

Power, N

500KW

26

Nominal dimensions of pitch diameter d of the central wheel, mm (planetary reducer)

320~340mm

27

Nominal dimensions of the radius of the satellites axes r, mm (planetary reducer)

Φ92mm

28

Rated torques on the low-speed shaft, N - m (planetary reducer)

160kN*m