The single blade rolling cutter is an important tool used for rock crushing and excavation on the cutterhead of shield tunneling machines. Its composition mainly includes the following parts:
a personcutter ring
Function: The knife ring is the core component of the rolling tool, which directly contacts the rock and achieves rock fragmentation through compression and cutting.
Material: High resistance steel orHard alloy materialThe surface can undergo special treatment (such as welding wear-resistant layers) to improve wear resistance and impact resistance.
twoBlade body (hub)
Function: The blade body is the supporting structure of the blade ring, used to connect the blade ring and blade shaft, and transmit torque and pressure.
Material: High strength alloy steel is generally used, such as42CrMoWait.
threeTool Axis
Function: The tool shaft is the rotation center of the rolling tool, transmitting power to the tool body and ring through the tool shaft.
Material: High strength alloy steel is usually used to ensure its strength and toughness.
fourrelationship
Function: Bearings are used to support the tool shaft, reduce friction during rotation, and ensure smooth rotation of rolling tools.
Type: High precision rolling bearings are commonly used, which may include deep groove ball bearingsTapered Roller BearingsWait.
fivefloating seal
Function: Floating seal is used to prevent sediment and water from entering the interior of rolling tools, protecting bearings and tool shafts.
Material: Rubber sealing rings or composite materials are commonly used for sealing.
sixend cap
Function: The end cap is used to seal both ends of the rolling tool, protect the internal structure, and also has fixing and sealing functions.
Composition: including upper end cover and lower end cover.
sevenBarrier Ring
Function: The spacer ring is used to separate bearings, ensuring the spacing between bearings and avoiding mutual interference.
eightOther auxiliary components
retaining ringUsed to fix the blade ring and blade body to prevent the blade ring from loosening.
Locking plate: used to lock the blade shaft and blade body, ensuring a secure connection.
Bolts and nuts: used to connect and secure various components of the rolling cutting machine.
ninelubrication system
Function: The lubrication system is used to provide lubricating grease for bearings and tool shafts, reduce friction, and extend service life.
The 15th letter of the English alphabetThe 15th letter circle of the English alphabet
Function:The 15th letter of the English alphabetThe 15th letter ring of the English alphabet is used to seal the connections between various components, preventing sediment and water from entering.
summarize
The components of the rolling cutter work together to complete rock crushing and excavation tasks. The blade ring, blade body, and blade shaft are the main load-bearing components, while the bearings and sealing system ensure the normal operation and service life of the rolling tool. The design and material selection of these components directly affect the performance and reliability of rolling mill tools.
