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Structure parameters of disk cutter ring
| Outer diameter of cutter ring (mm) | Width of cutter ring (mm) | Blade width (mm) | Cutting edge angle | Fillet radius (mm) |
|---|---|---|---|---|
| 483 | 89 | 19 | 24° | 32 |
Comparison of vertical forces from simulation and theoretical models
| Condition | Average vertical force of simulation model (kN) | Vertical forces calculated by CSM model (kN) | Absolute value relative error |
|---|---|---|---|
| Condition 1 | 201.3 | 205.9 | 2.2% |
| Condition 2 | 149.4 | 156.3 | 4.3% |
| Condition 3 | 116.2 | 122.3 | 4.9% |
| Condition 4 | 77.8 | 84.1 | 7.5% |
Rock attributes of each working condition
| Condition | Compressive strength (MPa) | Tensile strength (MPa) | Density (g/mm3) |
|---|---|---|---|
| Condition 1 | 120 | 11.2 | 2.9 × 10−3 |
| Condition 2 | 90 | 8.7 | 2.7 × 10−3 |
| Condition 3 | 70 | 6.9 | 2.6 × 10−3 |
| Condition 4 | 50 | 4.4 | 2.5 × 10−3 |
Chemical composition of disk cutter ring material
| Chemical element | C | Cr | Mn | Si | Mo | V | S | P |
|---|---|---|---|---|---|---|---|---|
| Chemical composition of cutter ring (%) | 0.49 | 5.15 | 0.47 | 1.07 | 1.46 | 0.98 | 0.009 | 0.012 |
| Chemical composition of 4Cr5MoSiV1 (%) | 0.32– 0.45 | 4.75– 5.50 | 0.20– 0.50 | 0.80– 1.20 | 1.10– 1.75 | 0.80– 1.20 | ≤ 0.03 | ≤ 0.03 |
A 19-inch disk cutter with basic parameters
| Material name of cutter ring | Outer diameter of cutter ring (mm) | HRC | Width of the cutter edge (mm) | Cutter spacing (mm) |
|---|---|---|---|---|
| 4Cr5MoSiV1 | 483 | 50–54 | 19 | 80 |