Cutterhead
AssemblyRotating steel wheel carrying disc cutters, driven by a ring of electric motors through a main bearing and reduction gearing. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Cutterhead
19 top-level lines as of r193255| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Cutting Wheel Structure | tbm-cutterhead-structure | 1× | 1 | · | part |
| 2 | Disc Cutter 4 parts | tbm-disc-cutter | 38× | 38 | 0 | assembly |
| 3 | Cutterhead Drive Motor 4 parts | tbm-drive-motor | 8× | 8 | 0 | assembly |
| 4 | Main Bearing 3 parts | tbm-main-bearing | 1× | 1 | 0 | assembly |
| 5 | Gearbox Housing | gearbox-housing | 8× | 8 | · | part |
| 6 | Helical Gear Pair | gear-pair | 16× | 16 | · | part |
| 7 | Main Bearing Seal Assembly 2 parts | tbm-cutterhead-seal | 1× | 1 | 0 | assembly |
| 8 | Scraper Tool | tbm-scraper | 160× | 160 | · | part |
| 9 | Bucket Lip | tbm-bucket-lip | 40× | 40 | · | part |
| 10 | Wear Plate | tbm-wear-plate | 220× | 220 | · | part |
| 11 | Cutter Housing Bolt | tbm-cutter-housing-bolt | 608× | 608 | · | part |
| 12 | Ring Gear & Bearing Bolt | tbm-ring-gear-bolt | 320× | 320 | · | part |
| 13 | Foam Injection Nozzle | tbm-foam-nozzle | 12× | 12 | · | part |
| 14 | Rotary Union | tbm-rotary-joint | 1× | 1 | · | part |
| 15 | Copy Cutter | tbm-copy-cutter | 2× | 2 | · | part |
| 16 | Grease Line & Fitting | tbm-cutter-lubrication | 60× | 60 | · | part |
| 17 | Heavy Structural Bolt | tbm-heavy-bolt | 240× | 240 | · | part |
| 18 | Hex Nut | tbm-hex-nut | 600× | 600 | · | part |
| 19 | Washer | tbm-washer | 600× | 600 | · | part |