发明名称 |
EXTENDABLE CUTTER DRUM FOR A BORING MACHINE |
摘要 |
A mining machine that includes a rotor assembly disposed on a mobile frame. A cutter drum assembly includes an intermediate drum section and a pair of end drum sections. The end drum sections are drivingly connected by the intermediate drum section. The end drum sections include an axially fixed drum portion and a drum extension that is axially movable on the drive shaft to extend the length of the cutter drum assembly. A hydraulic piston and cylinder arrangement is disposed in shafts supporting the end drum sections, and extends and retracts the drum extension with respect to the fixed drum portion. A torque transfer arrangement is disposed between the fixed and extension drum portions for mutual rotation.
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申请公布号 |
WO2008108779(A3) |
申请公布日期 |
2009.04.16 |
申请号 |
WO2007US10511 |
申请日期 |
2007.04.27 |
申请人 |
SANDVIK INTELLECTUAL PROPERTY AB;LEBEGUE, MAURICE, K. |
发明人 |
LEBEGUE, MAURICE, K. |
分类号 |
E21B25/10 |
主分类号 |
E21B25/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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